LEVIATHAN MINE

Superfund Site

EARLY RESPONSE ACTION

Administrative Record Index

To request copies of administrative record documents, an electronic order form is available.

This administrative record file contains the documents that the U.S. Environmental Protection Agency (EPA) is currently using to identify appropriate response activities for the Leviathan Mine Superfund Site in Alpine County, California. It is presented in Compact Disk (CD) and the documents can be accessed using Adobe Acrobat Reader.

EPA's decision, including public comments and responses to the comments, is presented in the EE/CA Approval and Non-Time Critical Removal Action Memorandum, dated July 12, 2005 (Doc # 2069500) on the CD.

This administrative record file also includes administrative record documents of all seven previous EPA removal actions at the Leviathan Mine Site, which are dated September 24, 1997, July 19, 2000, July 5, 2001, July 27, 2001, July 11, 2002, July 28, 2003, and July 29, 2004.

EPA welcomes questions and comments on documents contained in the administrative record file. Please contact:

Kevin Mayer or: Vicki Rosen
Remedial Project Manager Community Involvement Coordinator
U.S. EPA (SFD-7-2) U.S. EPA (SFD-3)
75 Hawthorne Street 75 Hawthorne Street
San Francisco, CA 94105-3901 San Francisco, CA 94105-3901
(415) 972-3176 (415) 972-3244 or (800) 231-3075

List of Abbreviations and Acronyms Used in Administrative Record Index

ABBREVIATION	MEANING
AIG	American International Group, Inc
AOC	Administrative Order on Consent
app	Appendix
ARAR	Applicable or relevant and appropriate requirement
ARCO	Atlantic Richfield Co
As	Arsenic
attch	Attachment
CA	State of California
CD-ROM	Compact Disc–Read-Only Memory
CERCLA	Comprehensive Environmental Response, Compensation, and Liability Act of 1980
CFR	Code of Federal Regulations
co	Company
CRWQCB-LR	California Regional Water Quality Control Board - Lahontan Region
ctr	Center
Cu	Copper
dev	Development
DNA	Deoxyribonucleic Acid
DTSC	Dept of Toxic Substance Control
E	East
EE/CA	Engineering Evaluation/Cost Analysis
encl	Enclosure
EPA	Environmental Protection Agency
ERB	Environmental Response Branch
ex	Exemption
Fe	Iron
FOIA	Freedom of Information Act
fr	From
FS	Feasability Study
GPS	Global Positioning System
Hg	Mercury
HPT	Hydropunch Technology
Inc	Incorporation
ltr	Letter
memo	Memorandum
mtg	Meeting
NPL	National Priorities List
NRDA	National Resource Damage Assessment
NV	State of Nevada
OSC	On-Scene Coordinator
p	Page
PA	Preliminary Assessment
PRP	Potentially Responsible Party
QA/QC	Quality Assurance/Quality Control
QAPP	Quality Assurance Project Plan
re	Regarding
RI	Remedial Investigation
RI/FS	Remedial Investigation/Feasability Study
ROC	Record of Communication
rpt	Report
SAP	Sampling & Analysis Plan
SAPS	Successive Alkalinity Producting System
SDG	Sample Delivery Group
SOW	Statement of Work or Scope of Work
STLC	Soluble Threshold Limit Concentration
SW	Southwest
TDD	Technical Direction Document
TDF	Technical Direction Form
TL	Transmittal Letter
TM	Task Manager
UAO	Unilateral Administrative Order
Univ	University
US	United States
USDA	United States Department of Agriculture
USGS	United States Geological Survey
v	Volume
w/	With
w/o	Without
WAF	Work Assignment Form
Zn	Zinc

Administrative Record Index

Doc_date	Author	Addressee	Title_subject	Docid
-	CA Regional Water Quality Control Board - Lahontan Region	-	Addendum to site 5-year workplan	45823
-	Engineering & Mining Journal	-	Article: One page only re formation of Leviathan Mining Co (Engineering & Mining Journal, v66, July-Dec 1898, p405)	90718
-	NV Dept of Conservation & Natural Resources - Div of Water Planning	-	Carson River chronology - chronological history of Carson River & related water issues	43962
-	Aseneth Jones / NONE T Jones / NONE	-	Deed - Leviathan Mine property transfer fr A Jones to E Dorsett	44096
-	T Jones / NONE Aseneth Jones / NONE	-	Deed - Leviathan Mine property transfer fr A Jones to F Morse	44097
-	Edward Dorset / NONE	-	Deed - Leviathan Mine property transfer fr E Dorset to G Sharpe	44100
-	Freeman Morse / NONE	-	Deed - Leviathan Mine property transfer fr F Morse to G Sharpe	44098
-	George Sharpe / NONE	-	Deed - Leviathan Mine property transfer fr G Sharpe to E Dorset	44099
-	-	-	Deed (partial) - Leviathan Mine property transfer fr A & T Jones to G Sharpe	44102
-	William Irelan / CA State Mining Bureau	-	Excerpts fr 8th annual rpt of state mineralogist for year ending 10/1/88	44356
-	Rossiter Raymond / US Commission of Mining Statistics	-	Excerpts fr Statistics of mines & mining in states & territories west of Rocky Mountains - 4th annual rpt (1871), w/marginalia	44355
-	Siskon Mining Corp	-	Grant deed (partial) - Siskon Mining Corp grants Leviathan Mine property to Calsul Mining Corp	44106
-	-	-	Leviathan mill site survey information	75545
-	US Dept of the Interior - Bureau of Land Management	-	List of Leviathan mill site & lodes	44578
-	Robert Hunter / US Dept of the Interior - Bureau of Indian Affairs	State of California Atlantic Richfield Co	Ltr: Notice of intent to perform natural resource damage assessment (draft)	76031
-	Keith Takata / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits modification to administrative abatement action of 7/19/2000, docket #00-16(a), w/o encls	101102
-	-	-	Map: Pine nut allotments	45222
-	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Carol Aiello / NONE	Memo: Transmits USGS data fr sampling of Leviathan providing an idea of water quality at points throughout site, w/attch	77100
-	-	-	Mogul mining index - books c & d (1875 - 1891) re Leviathan #2 & Leviathan Copper Mine	44359
-	-	-	Monitor mining index - books b & c (1863-1879)	44396
-	Kevin Mayer / Environmental Protection Agency - Region 9	-	Mtg overheads - RI/FS	44539
-	Leonard Anker / US Dept of Agriculture - Soil Conservation Service	-	Newsclip: Carson Valley agricultural news - Bryant Creek is polluted	76227
-	Alpine Chronicle	-	Newsclip: Leviathan	44402
-	Alpine Chronicle	-	Newsclip: Local intelligence - Leviathan	44403
-	Alpine Chronicle	-	Newsclip: Local mining - Leviathan	44407
-	Alpine Chronicle	-	Newsclip: Local mining - Leviathan Mine	44405
-	Alpine Chronicle	-	Newsclip: Success - Leviathan	44400
-	Geoff Dornan / Record-Courier, The	-	Newsclip: Wallace wins his 3rd term	45540
-	B Kincaid / NONE	-	Notice - Leviathan #2 mining claim	44103
-	J Mayo / NONE	-	Notice - Leviathan Copper Mine #29 claim	44104
-	P Curtz / NONE	-	Notice of location - Leviathan Copper Mine claim	44105
-	Historical Society of Alpine County	-	Pamphlet: Alpine County historical complex - museum, old Webster School, old log jail - state point of historic interest	44382
-	US Dept of the Interior - Bureau of Land Management	-	Pamphlet: Mining claims & sites on federal lands	44366
-	Kevin Mayer / Environmental Protection Agency - Region 9	-	Statement of work (SOW) for RI/FS	44541
-	-	-	Table 1 - length of stream polluted, pounds of trout eradicated by mine pollution & future potential fishing use of downstream waters if mine pollution abated (Leviathan & Bryant Creeks)	43967
7/6/1907	George Wood / Engineering & Mining Journal	-	Article: Alternating current in coal-mining operations (Engineering & Mining Journal, v84, #1, 1907)	90719
12/24/1919	Jack Tehen / NONE	-	Notice of desire to hold mining claim by Leviathan Copper System Trustees & Jack Tehen	76037
10/1/1931	Walter Bradley / CA Dept of Natural Resources - Div of Mines	-	Excerpts fr chapter of Rpt 27 of state mineralogist covering activities of division of mines including geologic branch (California Journal of Mines & Geology, v27, #4, 490-491)	44357
6/17/1932	Western Clay & Metals Co	-	Notice of location of quartz or other rock in place claim, Leviathan #19-22, by Western Clay & Metals Company	76058
5/18/1933	Leviathan Sulphur Co	-	Notices of location & notices of location of quartz or other rock in place claim, Leviathan #68-86, by Leviathan Sulphur Co	76062
6/26/1933	Leviathan Sulphur Co Western Clay & Metals Co	-	Proof of labor upon mining claim by Leviathan Sulphur Company & Western Clay & Metals Company	76064
10/19/1933	Howard Pyle / Leviathan Sulphur Co	-	Notice of location of quartz or other rock in place claim, Leviathan #88, by Leviathan Sulphur Company	76066
5/14/1935	E Bierce / Leviathan Sulphur Co	-	Proof of labor on mining claim by Leviathan Sulphur Company	76069
5/16/1935	-	-	Agreement - Leviathan Sulphur Co leases lode mining claims to Calpine Corp for 27 years	44107
5/20/1935	E Bierce / Leviathan Sulphur Co	-	Notices of location, Leviathan #19-22, 36, 55, 65 & 75, by Leviathan Sulphur Company	76071
6/30/1936	Calpine Corp, The	-	Notice of work & labor completed in Leviathan Mining District fr (7/1/35 to 6/30/36) by Calpine Corp under lease fr Leviathan Sulphur Company	76072
10/1/1939	George Gary / CA Dept of Natural Resources - Div of Mines	-	Article: Sulphate minerals at Leviathan Sulpur Mine, Alpine Co, CA (California Journal of Mines & Geology, v35, #4, 488-489)	44358
7/8/1941	Calpine Corp, The	-	Notice of work & labor completed in Leviathan Mining District fr (7/1/40 to 6/30/41) by Calpine Corp under lease fr Leviathan Sulphur Company	76073
12/10/1941	Hugh Wright / Calpine Corp, The	-	Affidavit re assessment work performed, (7/1/41 to 12/2/41), by Calpine Corporation under lease fr Leviathan Sulphur Company	76074
12/10/1941	L Wickes / Calpine Corp, The	-	Quit claim deed - Calpine Corp surrenders to Leviathan Sulphur Co lode mining leases & rights of way	44108
6/21/1943	Melvin McKinnon / Leviathan Sulphur Co E Bierce / Leviathan Sulphur Co	-	Notice of desire to hold lode/placer mining claims by Leviathan Sulphur Company	76075
6/19/1945	Alleene Schwartz / Siskon Mining Corp L Wickes / Siskon Mining Corp	-	Notice of desire to hold lode mining claims by Siskon Mining Corporation	76076
8/30/1945	Hugh Wright / Siskon Mining Corp	-	Notice of location of lode mining claim by Siskon Mining Corporation for Leviathan #23	76077
8/31/1945	Hugh Wright / Siskon Mining Corp	-	Certificate of location - Siskon Mining Corp re Leviathan mill site	44575
9/1/1945	Hugh Wright / Siskon Mining Corp	-	Amended certificate of location - Siskon Mining Corp re Leviathan mill site	44576
6/21/1946	L Wickes / Siskon Mining Corp	-	Notice of desire to hold lode mining claims by Siskon Mining Corporation	76078
6/25/1946	L Wickes / Siskon Mining Corp Alleene Schwartz / Siskon Mining Corp	-	Notice of desire to hold lode mining claim by Siskon Mining Corporation for Leviathan #33	76079
9/30/1946	Hugh Wright / Siskon Mining Corp	-	Notice of location of quartz or other rock in place claim & statement of markings of boundaries & performance of required discovery work by Siskon Mining Corporation	76080
4/18/1947	US Dept of the Interior - Bureau of Land Management	-	Certificate of approval of field notes & survey of mining claim - Siskon Mining Corp re Leviathan mill site & lodes	44579
4/18/1947	US Dept of the Interior - Bureau of Land Management	-	Oversize Drawings (5): Mineral survey #6365 A & B, 12" x 17"	69708
5/13/1947	-	-	Survey (partial) - Siskon Mining Corp re Leviathan mill site & lodes	44577
6/20/1949	L Wickes / Siskon Mining Corp	-	Proof of labor for mining year ending 7/1/49 by Siskon Mining Corporation	76081
1/13/1950	James Homer / US Dept of the Interior - Bureau of Land Management	-	Land patent - Leviathan lode mining & mill site claims by Siskon Mining Corp	44109
1/30/1950	US Dept of the Interior - Bureau of Land Management	-	Grants Leviathan lode mining & mill site claims to Siskon Mining Corp	44369
2/21/1950	-	-	Mineral application for sulphur, gold & copper by Siskon Mining Corp re Leviathan mill site & lodes	44571
7/1/1950	Siskon Mining Corp	-	Notice of desire to hold mining claim for year ending 7/1/50 by Siskon Mining Corporation	76082
11/30/1951	McIntyre Faries / Calsul Mining Corp	-	Grant deed - Calsul Mining Corp grants Anaconda Copper Mining Co patented lode mining claims, patented mill site claim & property	44110
7/9/1952	W White / NV Dept of Health	A Millar / Anaconda Copper Mining Co	Ltr: Results of tests on water samples taken fr Aspen Creek & Leviathan Creek	76148
9/24/1952	George Coyan / NONE William White / NONE	-	Memo: Decision not to stock fish in Poison Creek, w/stocking record for Mountaineer Creek, 9/24/52	75535
2/1/1953	James Wilson / Anaconda Minerals Co	-	Supplementary rpt on Leviathan Sulphur Mine	45833
8/27/1954	R Paul / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Complaints of dead fish in Leviathan Creek have been received	76149
6/30/1955	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Thomas Trelease / NV Fish & Game Commission	Ltr: Money requested in 1955-56 budget to investigate reported pollution problem occurring in Leviathan Creek	76153
9/19/1955	NV Dept of Conservation & Natural Resources - Div of Wildlife	-	Nevada Division of Wildlife stream survey - Bryant Creek	76132
12/1/1955	Lewis Nordyke / Explosives Engineer, The	-	Article: Mining with Anaconda in NV (Explosives Engineer, 167-182)	45851
6/25/1957	-	-	Fish population inventory - Leviathan Creek	45224
6/26/1957	John Wilson / US Public Health Service	-	Rpt on investigation of interstate pollution - Leviathan Creek & E Carson River (CA & NV) with special reference to biological findings (6/24-6/26/57), w/TL to J Leggett fr R Poston 8/21/57	43989
7/10/1957	Robert Montgomery / NONE	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Annual fish planting allottment meeting complaints re Leviathan Creek pollution	43991
7/10/1957	Robert Montgomery / NONE	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Complaints received at annual fish planting allotment meeting re Leviathan Creek pollution, w/testimonials fr fisherman 12/68	76455
2/18/1958	E Reinke / CA Dept of Public Health	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits laboratory results obtained fr Leviathan Creek samples collected 9/27/57, w/encl	76151
4/25/1958	US Public Health Service	-	Summary rpt on quality of interstate waters, Leviathan Creek, w/TL to M Merrill fr R Fostor	76152
7/1/1958	S Coli / NONE	-	Bioassay rpt (to determine toxicity to fish) - Leviathan Creek	45223
7/1/1958	NV Dept of Conservation & Natural Resources - Div of Wildlife	-	Stream & lake survey, biological & physical data work sheet - Bryant Creek, w/rpt, Leviathan Creek bioassay by S J Coli	76134
1/1/1959	Thomas Trelease / NV Fish & Game Commission	-	Rpt of Leviathan Creek pollution - 1959	43992
8/13/1959	G Plumb / NONE	-	Rpt of mineral examination - Anaconda unpatented claims, w/o claim map	76246
10/7/1959	Floyd Iverson / US Forest Service - Intermountain Region	J Forman / Anaconda Co	Ltr: Transmits signed stipulation form indicating that Forest Service recognizes Anaconda's surface rights on claims, w/attchs	76248
3/7/1962	Dale Hammermeister / US Geological Survey David Prudic / US Geological Survey	CA Regional Water Quality Control Board - Lahontan Region	Shallow groundwater flow in vicinity of open pit at site (draft) w/marginalia	45940
11/19/1962	Anaconda Co	-	Sale of Leviathan mining claims - Indenture between Anaconda Company & William Chris Mann & Zella N Mann	76154
7/9/1963	W White / NV Dept of Health	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Compliant fr Brooks Park re drainage fr Leviathan Mine tailings seeping to Bonnie O'Riley Creek & into his irrigation system	76159
1/1/1964	Turrentine Jackson / CA Dept of Parks & Recreation - Div of Beaches & Parks	-	Excerpt fr Rpt on history of Grover Hot Springs State Park area & surrounding region of Alpine County	44397
2/4/1964	Chris Mann / Alpine Mining Enterprises, Inc Zella Mann / Alpine Mining Enterprises, Inc	-	Deed - patented & unpatented Leviathan mining claims & mill site granted fr Alpine Mining Enterprises to Lloyd E Neel	44118
2/13/1964	Margaret Neel / Alpine Mining Enterprises, Inc	-	Certificate - Alpine Mining Enterprises authorizes transfer of corporate assets (patented & unpatented Leviathan mining claims & mill site) to L Neel	44115
2/18/1964	Thomas Trelease / NV Fish & Game Dept	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Requests status of Anaconda Mining properties compliance with 12/20/62 Water Pollution Control Board standards	43986
9/30/1964	Lloyd Neel / Alpine Mining Enterprises, Inc	-	Quitclaim deed - patented Leviathan lode mining claims #16 & #30 transferred fr Lloyd Neel to Robert Parker, w/exhibits A & B	44119
10/30/1964	Lloyd Neel / Alpine Mining Enterprises, Inc	-	Quitclaim deed - Leviathan lode mining claims #14 & #15 transferred fr Lloyd Neel to Eva Wasson, w/exhibits A & B	44120
10/30/1964	Lloyd Neel / Alpine Mining Enterprises, Inc	-	Quitclaim deed - Leviathan lode mining claims #19 & #20 transferred fr Lloyd Neel to Geodesic Structures, w/exhibits A & B	44122
4/10/1965	Margaret Neel / Alpine Mining Enterprises, Inc Lloyd Neel / Alpine Mining Enterprises, Inc	-	Quitclaim deed - unpatented Leviathan lode mining claims transferred fr Alpine Mining Enterprises to Robert Parker	44123
9/21/1965	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	CA Regional Water Quality Control Board - Lahontan Region	Ltr: CRWQB actions with Anaconda Copper Co & C Mann & Assoc re Leviathan sulphur mine drainage & sources of contamination, w/o attch	45834
8/18/1967	Lloyd Neel / Alpine Mining Enterprises, Inc	-	Purchase agreement - Alpine Mining Enterprises grants right to US Borax & Chemical Co to prospect & evaluate mineral deposits, w/patented & unpatented Leviathan claim maps	44135
3/6/1968	Lloyd Neel / Alpine Mining Enterprises, Inc	-	Amendment of purchase agreement (8/18/67) - Alpine Mining Enterprises extends date for US Borax & Chemical Co to prospect & evaluate mineral deposits, w/patented & unpatented Leviathan claim maps	44136
11/12/1968	Fred McLaren / CA Regional Water Quality Control Board - Lahontan Region	Arthur Brown / CA Dept of Fish & Game	Ltr: Requests history of Leviathan Creek fish & wildlife habitat	43964
11/24/1968	Arthur Brown / CA Dept of Fish & Game	Fred McLaren / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to request for information re Leviathan Creek prior to mine pollution w/TL to D Walsh fr P Tuttle 1/30/98	44340
11/24/1968	Arthur Brown / CA Dept of Fish & Game	Fred McLaren / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Response to request for information re Leviathan Creek prior to pollution by mine - historic facts of Leviathan Creek	75530
11/25/1968	CA Regional Water Quality Control Board - Lahontan Region	-	Rpt on pollution of Leviathan Creek caused by Leviathan Mine	76163
12/6/1968	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	J Cook / Alpine County - Office of District Attorney	Ltr: Relationship between US Borax & Chemical Corp & Alpine Mining Enterprises, Inc re ownership of Leviathan Mine	76164
12/20/1968	Richard O'Connell / US Dept of the Interior - Federal Water Pollution Control Administration	Kerry Mulligan / CA Water Resources Control Board	Ltr: Arrangements for acid mine specialist to provide technical assistance	43968
12/21/1968	-	-	Testimonials of fishermen re Leviathan Creek pollution (12/6/68 - 12/21/68)	44558
2/3/1969	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	J Cook / Alpine County - Office of District Attorney	Ltr: Resolution 69-9 ordering Alpine Mining enterprises to cease & desist violation of waste discharge requirements adopted by Board & transmits Resolution 69-9, w/attch	76289
2/24/1969	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	J Cook / Alpine County - Office of District Attorney	Ltr: Transmits portion of Lahontan Regional Water Quality Control Board meeting minutes, CA Department of Fish & Game rpt & water quality data, w/attchs	76290
4/18/1969	Gail Munk / Douglas County, NV - Extension Service	Fred McLaren / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits 11/13/68 ltr to Brooks Park re forage production on his ranch, w/encl	76166
6/12/1969	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Raymond Arnett / CA Dept of Fish & Game	Ltr: Requests information for use in legal action against Alpine Mining Enterprises re fishery resource of Leviathan & Bryant Creeks & E Fork Carson River	43980
6/27/1969	James Leiby / CA Dept of Fish & Game	Frank Groves / NV Fish & Game Commission	Ltr: Confirms Nevada Fish & Game cooperation re Leviathan Mine pollution abatement proceedings, w/o encl	43970
6/27/1969	James Leiby / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to request for information re effect of Leviathan Mine wastes on fish, aquatic life & wildlife (Leviathan & Bryant Creeks & E Fork Carson River), w/ltr to R Arnett fr J Leggett 6/12/69 & ltr S Davis fr T Trelease 6/18/69	76173
6/27/1969	James Leiby / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to request for information re effect of Leviathan Mine wastes on fish, aquatic life, & wildlife (Leviathan & Bryant Creeks & E Fork Carson River)	43973
6/27/1969	James Leiby / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Memo: Leviathan Mine pollution - response to request for information re fishery resource of Leviathan Creek, Bryant Creek & East Fork Carson River, w/ltr to R Arnett fr J Leggett 6/12/69 & ltr to K Mulligan fr R O'Connell 12/20/68	75778
7/24/1969	-	-	Geological rpt on source of mineral water fr tunneling - site (draft) w/marginalia	45861
7/30/1969	Raymond Arnett / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to request for information re fishery resource of Leviathan & Bryant Creeks & E Fork Carson River	43982
7/30/1969	Raymond Arnett / CA Dept of Fish & Game	John Leggett / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to request for information re fishery resource of Leviathan & Bryant Creeks & E Fork Carson River, w/attchs	76176
9/19/1969	Thomas Trelease / NV Fish & Game Dept	NV Fish & Game Dept	Memo: Pollution in Leviathan Creek & conversation with Emmet Matthews, w/statements of 2 fishermen	76136
9/26/1969	R Art / CA Water Resources Control Board - Div of Water Rights	-	Rpt on site hydrologic study (5/14/69-9/26/69)	45856
10/17/1969	A Franks / NONE	-	Geological rpt on source of mineral water fr Leviathan Mine	45886
9/1/1970	Alpine Mining Enterprises, Inc	-	Statement of proof of labor for assessment year beginning 9/1/70 & ending 9/1/71 for Alpine Mining Enterprises, Inc	76097
10/7/1971	James Neel / Alpine Mining Enterprises, Inc	Bertram Buzzini / CA Dept of Justice	Ltr: Request for clarification re EPA demonstration grant & mining operations for period of correction activities	76179
1/1/1973	US Forest Service	-	Personal property ownership records, w/marginalia	90723
9/11/1973	James Neel / Alpine Mining Enterprises, Inc Margaret Neel / Alpine Mining Enterprises, Inc	-	Corporation grant deed - Alpine Mining Enterprises grants Copper Bar Quartz Mine to Ernest & Eva Wasson	44137
3/18/1974	-	-	History of mining operations, w/TL to P Jones fr R Hampson 3/18/74, encls & marginalia	76286
1/1/1975	CA Regional Water Quality Control Board - Lahontan Region	-	Rpt on pollution - Leviathan & Bryant Creeks & East Fork Carson River caused by Leviathan sulphur mine, w/marginalia	45829
1/1/1975	CA Regional Water Quality Control Board - Lahontan Region	-	Rpt on pollution of Leviathan & Bryant Creeks & East Fork Carson River caused by Leviathan Sulphur Mine (oversize drawings only)	76674
1/1/1975	CA Regional Water Quality Control Board - Lahontan Region	-	Rpt on pollution of Leviathan & Bryant Creeks & East Fork Carson River caused by Leviathan Sulphur Mine, w/o oversize drawings	76278
1/20/1975	NV Fish & Game Dept	-	Statement by Nevada Department of Fish & Game relative to Leviathan Mine pollution problem	76146
1/23/1975	CA Regional Water Quality Control Board - Lahontan Region	-	Public hearing re condition of pollution or nuisance in matter of Anaconda Leviathan Sulphur Mine, 1/23/75	76186
3/3/1975	Hubert Bruns / Alpine County - Board of Supervisors	Michael O'Callaghan / NV Office of the Governor	Ltr: Anaconda's mining operation at Leviathan	76190
3/27/1975	CA Regional Water Quality Control Board - Lahontan Region	-	CRWQCB Lahontan Region resolution #75-3 - referring matter of Anaconda Leviathan Sulfur Mine to State Water Resources Control Board, w/note re persons to contact & directions 8/12/75	76195
6/1/1977	CA Dept of Conservation - Div of Mines & Geology	-	Excerpts fr County rpt 8 - mines & mineral resources of Alpine Co, CA	44352
6/1/1979	Skelly & Loy	CA Regional Water Quality Control Board - Lahontan Region	Excerpts fr Feasibility study for abatement of pollution fr site - final rpt	45221
4/19/1980	US Dept of the Interior - Bureau of Land Management	-	Leviathan Mine surface rights drawing, w/BLM geographic index of claims & claimants & Leviathan mineral survey #6365 A & B parcel location maps	77098
8/13/1980	Julie Vankleeck / CA Regional Water Quality Control Board - Lahontan Region	Chuck White / CA Regional Water Quality Control Board - Lahontan Region	Memo: Leviathan Mine assessors data, w/attch	76199
8/26/1980	Max Montgomery / US Forest Service - Humboldt-Toiyabe National Forest	Charles White / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits orthoquad with flight lines & model control target locations & California grid coordinates for targets, w/encls & marginalia	76245
9/11/1980	CA Regional Water Quality Control Board - Lahontan Region	-	CRWQCB Lahontan Region resolution 80-6, authorizing executive officer to negotiate & execute contracts for site closure, cleanup & abatement & maintenance of Leviathan Mine	76205
10/1/1980	Kit Custis / CA Dept of Conservation - Office of Mine Reclamation	Catherine Schoen / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Preliminary results of geophysical surveys at site w/attchs	45943
10/21/1980	US Forest Service	-	Leviathan Mine, rpt of survey, w/Department of Water Resources survey note forms (9/15/80 - 10/21/80) & marginalia	76255
3/12/1981	CA Regional Water Quality Control Board - Lahontan Region	-	CRWQCB Lahontan Region meeting of 3/12/81, Tahoe-Truckee Sanitation Agency - status rpt on Leviathan Mine pollution abatement project, w/attch	76208
4/29/1981	US Geological Survey	-	Leviathan Mine rpt of survey made during 9/80, w/Proposal for collection of basic records & geochemical aspects, Leviathan Mine, 4/29/81	77097
9/17/1981	CA Regional Water Quality Control Board - Lahontan Region	-	CRWQCB Lahontan Region meeting of 9/17/81, Bishop - Leviathan Mine pollution abatement project - notes of discussion	76213
1/1/1982	-	-	Description of construction work alternatives - pit, waste dump & spoil area	46121
3/15/1982	US Geological Survey	-	USGS hydrogeotechnical program w/marginalia	45893
6/1/1982	US Geological Survey	-	USGS hydrogeotechnical program, w/lab analytical sheets, USGS 6/82 survey test drilling rpt, attchs & marginalia	77096
8/17/1982	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Roy Hampson / CA Regional Water Quality Control Board - Lahontan Region	Memo: Site visit with F Keith, Leviathan Mine manager fr 1953-1957 re site conditions prior to pit opening	44385
1/1/1983	John Sciacca / Univ of California, Davis	-	Thesis - historical & environmental geologic study of Leviathan Creek basin landslide	45944
4/1/1983	Brown & Caldwell	CA Regional Water Quality Control Board - Lahontan Region	Excerpt fr Leviathan Mine pollution abatement project, design rpt & draft environmental impact rpt (chapter 2, p 2-1 - 2-6)	75543
4/1/1983	Brown & Caldwell	CA Regional Water Quality Control Board - Lahontan Region	Excerpts fr Leviathan Mine pollution abatement project, design rpt & draft environmental impact rpt (p 2-5 - 2-7, 2-15 - 2-20 & maps/drawings)	76235
4/1/1983	Brown & Caldwell Consultants	CA Regional Water Quality Control Board - Lahontan Region	Site pollution abatement project - design rpt & draft environmental impact rpt (EIR)	44389
4/14/1983	CA Regional Water Quality Control Board - Lahontan Region	-	CRWQCB Lahontan Region meeting of 4/14/83, Bishop - Leviathan Mine pollution abatement project - notes of discussion, w/resolution #83-3 requesting CA Attorney General to initiate appropriate legal proceedings against Anaconda Minerals	76221
5/1/1983	Brown & Caldwell Consultants	CA Regional Water Quality Control Board - Lahontan Region	Site pollution abatement project - final environmental impact rpt (EIR) (supplement) w/appendices A-C	45807
5/24/1983	Richard Krablin / Anaconda Minerals Co	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Comments re draft environmental impact rpt (EIR) - site pollution abatement project	45808
7/26/1983	Paul Christensen / CA Regional Water Quality Control Board - Lahontan Region Kathleen Gnekow / CA Dept of Justice - Office of the Attorney General	James Marvin / Atlantic Richfield Co	Settlement & release of liability agreement, w/copy of check & TL fr J Landy to J Martin 7/11/97	44639
7/27/1983	Kathleen Gnekow / CA Dept of Justice - Office of the Attorney General	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Memo: Transmits 7/22/83 ltr re status of water quality cleanup, w/attchs	45236
8/23/1983	Cartwright Aerial Surveys, Inc	-	Aerial Photo: Site before Regional Water Quality Control Board project, b&w, 1:12000	76236
12/19/1983	Marshall Neel / Alpine Mining Enterprises, Inc James Neel / Alpine Mining Enterprises, Inc	-	Corporation grant deed - Alpine Mining Enterprises grants Leviathan patented lode claims & Leviathan Mill site claims to State of CA, w/exhibit A	44141
12/19/1983	James Neel / Alpine Mining Enterprises, Inc	-	Corporation grant deed - Alpine Mining Enterprises transfers ownership of Leviathan Mine to State of California, w/exhibit A & attchs re conveyance of property to CWQCB	76223
6/29/1984	Terry Katzer / US Geological Survey	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits draft rpt - hydrologic & water-quality data fr Leviathan Mine & vicinity (1981-1983) w/encl	45802
8/8/1984	Bland Richardson / US Forest Service Eugene Farmer / US Forest Service	Gerard Thibeault / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Revegetation recommendations re waste dump slopes below evaporation ponds, SW corner to pit fill	2023819
10/25/1984	Cartwright Aerial Surveys, Inc	-	Aerial Photo: Site during Regional Water Quality Control Board project, b&w, 1:12000	76237
1/1/1985	US Geological Survey	-	Data fr solute transport experiment in site drainage, 10/82 (partial rpt), w/marginalia	43993
1/1/1985	Stephen Walmsley / US Geological Survey Dale Hammermeister / US Geological Survey	-	Hydrologic data for Leviathan Mine & vicinity (1981-1983)	45889
1/1/1986	Leo Poppoff, Resident / City of Carnelian Bay	-	Article: Sierra watch - Leviathan means huge	45242
6/26/1986	Craig Morgan / CA Regional Water Quality Control Board - Lahontan Region	James Kuykendall / CA Regional Water Quality Control Board - Los Angeles Region	Memo: Identifies repair work conducted on site concrete structures fr 6/11/85 - 8/30/85 (concurrence copy), w/o attchs	45237
7/1/1986	Eric Gerstung / CA Dept of Fish & Game	-	Excerpt fr Fishery management plan for Lahontan cutthroat trout (salmo clarki henshawi) in California & western Nevada waters (p 41 - Carson River sub-basin)	76242
8/22/1986	Carol Hunter / CA Dept of Justice - Office of the Attorney General	William Attwater / CA Water Resources Control Board - Office of Chief Counsel	Memo: Discusses Mittry v CA Regional Water Quality Control Board & recommends completion of concrete repair work (concurrence copy)	45238
10/17/1986	Ossian Butterfield / CA Regional Water Quality Control Board - Lahontan Region	William Attwater / CA Water Resources Control Board - Office of Chief Counsel	Memo: Discusses concrete structure repairs (concurrence copy) w/marginalia	45239
11/21/1986	CA Regional Water Quality Control Board - Lahontan Region	-	Draft operation & maintenance plan - site pollution abatement project	45827
1/1/1987	US Dept of the Interior - Bureau of Land Management	-	Location, recordation & assessment work for mining claims & sites in California, w/addressee lists	90720
2/19/1987	Ossian Butterfield / CA Regional Water Quality Control Board - Lahontan Region	CA Dept of Health Services	Resolution #87-5 requesting assistance for damaged concrete repair re site pollution abatement project, w/TL fr O Butterfield to W Ryan, Jr 3/3/87	45240
5/1/1987	-	-	Chapter: Mining (100 years of history, recreation, lore in Alpine County, CA, 1864-1964, p43, Centenniel Book Committee)	44391
5/1/1987	Tom Kukol / CA Regional Water Quality Control Board - Lahontan Region	-	Leviathan - state of mine, spring of 1987	45831
1/1/1988	Eric Gerstung / CA Dept of Fish & Game	-	Article: Status, life history & management of Lahontan cutthroat trout (American Fisheries Society Symposium, v4, p93-106)	76239
7/1/1988	Univ of California, Berkeley	-	Mining waste study, final rpt (section 5.6 - Leviathan Mine, p 221-228)	75472
1/1/1989	Kirk Nordstrom / US Geological Survey James Ball / US Geological Survey	-	Final revised analyses of major & trace elements fr acid mine waters in Leviathan Mine drainage basin, CA & NV (10/81-10/82)	45942
1/11/1990	CA Regional Water Quality Control Board - Lahontan Region	-	CA Water Quality Control Board Lahontan Region, board order #6-90-12, rescinding resolutions #64-3 & 69-9 for Leviathan Sulphur Mine, w/resolution #64-3 & 69-9	76228
3/3/1990	Su-san Wen / Ecology & Environment, Inc	Virginia Cummings / Environmental Protection Agency - Region 9	Screening site inspection (SSI) reassessment, w/marginalia	45243
10/1/1990	Doug Eberhardt / Environmental Protection Agency - Region 9	Jane Schmidt / US Forest Service	Ltr: Decision re listing of impaired water & point sources for California - Leviathan Mine listed as point source, w/final decision & response to comments	77061
10/1/1990	Doug Eberhardt / Environmental Protection Agency - Region 9	Jane Schmidt / US Forest Service	Ltr: Decision re listing of impaired water & point sources for California - Leviathan Mine listed as point source, w/o encls	75526
1/4/1991	Angela Harris / CA Dept of Health Services - Hazardous Waste Management Section	Jason Churchill / CA Regional Water Quality Control Board - Lahontan Region	ROC: Site activity information sought for purpose of site screening	45241
4/1/1991	Eric Taxer / CA Regional Water Quality Control Board - Lahontan Region Jason Churchill / CA Regional Water Quality Control Board - Lahontan Region Ranjit Gill / CA Regional Water Quality Control Board - Lahontan Region	-	History of Leviathan Mine pollution abatement project	45229
5/1/1991	Greystone Development Consultants, Inc	US Forest Service	Preliminary assessment (PA) - site - final rpt, w/appendices A-D (oversize map only)	74087
5/1/1991	Greystone Development Consultants, Inc	US Forest Service	Preliminary assessment (PA) - site - final rpt, w/appendices A-D, w/o oversize map	45232
5/1/1991	Greystone Development Consultants, Inc	US Forest Service - Toiyabe National Forest	Preliminary assessment, final rpt	75475
6/26/1991	John Lupis / US Forest Service - Intermountain Region	Carolyn Douglas / Environmental Protection Agency - Region 9	Ltr: Accepts recommendation of no further action & transmits preliminary assessment (PA) - mining waste study final rpt	45230
1/1/1992	Kenneth Miller / NONE	-	Map: Washoe lands - present & pre-European contact lands of Washoe Indian Tribe of NV & CA, w/marginalia by K Mayer	45157
1/1/1992	Kevin Graves / CA State Univ, Sacramento	-	Thesis - ground conductivity study of Leviathan sulphur mine (draft) w/marginalia	45941
4/10/1992	Eric Taxer / CA Regional Water Quality Control Board - Lahontan Region	Guy Pence / US Forest Service - Toiyabe National Forest	Ltr: Notifies & requests US Forest Service participation re proposed site remediation strategies & time schedules	45235
6/4/1993	Kathleen Smith / US Geological Survey Jenny Webster / Institute of Environmental Health & Forensic Science Kirk Nordstrom / US Geological Survey	-	Article: Transport & natural attenuation of Cu, Zn, As & Fe in acid mine drainage of Leviathan & Bryant creeks w/marginalia	45939
10/1/1993	US Dept of the Interior - Fish & Wildlife Service	-	Pamphlet: Lahontan national fish hatchery (Gardnerville, NV)	45169
11/8/1993	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Walter Pettit / CA Water Resources Control Board	Memo: Site background re 11/9/93 mtg, requests cleanup funding re pond water treatment, w/attch & TL to T Brubaker fr C Schoen 11/10/93	2023974
1/1/1994	Financial Information, Inc	-	Excerpts fr Financial Stock Guide Service, Directory of obsolete securities, 1994 edition	75492
5/17/1994	Catherine Schoen / CA Regional Water Quality Control Board - Lahontan Region	Christopher Weden / Environmental Protection Agency - Region 9	Memo: Site removal action, acid mine drainage treatment, evaporation ponds	2023973
7/6/1994	Brad Shipley / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Planned Acid Mine Drainage (AMD) potential overflow response actions	2023972
9/16/1994	Mike Sion / Reno Gazette-Journal	-	Newsclip: Water cleaning project full of manure, straw	76288
1/30/1995	US Dept of the Interior - Fish & Wildlife Service, Region 1 Patrick Coffin / NONE William Cowan / NONE	-	Lahontan cutthroat trout (oncorhynchus clarki henshawi) recovery plan	76238
4/5/1995	Alpine County - Assessors Office	-	Maps: Assessors - Alpine Co (1951-1995)	45234
7/1/1995	Bruce Warden / CA Regional Water Quality Control Board - Lahontan Region Catherine Schoen / CA Regional Water Quality Control Board - Lahontan Region Diana Henrioulle-Henry / CA Regional Water Quality Control Board - Lahontan Region	-	Leviathan Mine workplan (draft) w/attchs A-D	44002
7/1/1995	Catherine Schoen / CA Regional Water Quality Control Board - Lahontan Region	-	5-year workplan	75537
8/25/1995	David Herbst / Univ of California - Sierra Nevada Aquatic Research Laboratory	-	Aquatic invertebrate bioassessment monitoring of acid mine drainage impacts in Leviathan Creek watershed - technical rpt	45231
12/20/1995	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	TDD: Provide on-call response call out capability, w/amendments A-R & acceptance rpts	2006506
1/1/1996	Terry Ackman / US Dept of Energy - Pittsburgh Research Center Ann Kim / US Dept of Energy - Pittsburgh Research Center	CA Regional Water Quality Control Board - Lahontan Region	Excerpts fr Feasibility of lime treatment at Leviathan Mine using in-line system, (p 5-10, background & environmental remediation)	75473
1/1/1996	Terry Ackman / US Dept of Energy - Pittsburgh Research Center Ann Kim / US Dept of Energy - Pittsburgh Research Center	CA Regional Water Quality Control Board - Lahontan Region	Feasibility of lime treatment at site using in-line system w/appendices A-H	45228
1/1/1996	-	-	Map: Earthquake activity 1960-1996 (by site latitude & longitude) w/marginalia by K Mayer	45158
1/1/1996	Washoe Tribe of Nevada & California - Washoe Tribal Council	-	Ta Gum Osh (Pine Nut Mountains) - Investigation of conditions impacting Washoe allotted lands, pine nut allotments	77058
7/2/1996	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	TDD: Develop, install & test Region 9 cost summary information system, w/amendments A-K, acceptance rpts & AOC	2009996
1/8/1997	Michael Shapiro / Environmental Protection Agency - Office of Solid Waste & Emergency Response Stephen Luftig / Environmental Protection Agency - Office of Emergency & Remedial Response	Environmental Protection Agency - All Regions	Memo: Use of site-specific land disposal restriction treatability variances under 40 CFR 268.44(h) during cleanups	2023840
4/1/1997	Gary Horton / NV Dept of Conservation & Natural Resources - Div of Water Planning	-	Carson River chronology - chronological history of Carson River & related water issues (lst update)	45812
4/1/1997	Gary Horton / NV Dept of Conservation & Natural Resources - Div of Water Planning	-	Page I-14 fr Carson River Chronology	75490
5/1/1997	-	-	History & current status of site oversight & activities by CRWQB-Lahontan Region	45887
5/20/1997	J Akenhead / Akenhead Compliance & Environmental Services	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Pond 4 discharge identified as hazardous waste under RCRA & transmits scientific & regulatory analysis of Pond 4 discharge, w/encls	76240
5/27/1997	John Martin / Beavers & Young	Ronald Brown / Environmental Protection Agency - Region 9	Ltr: Petition & supporting data for issuance of administrative order re site pollution abatement project, w/encls	45233
6/8/1997	Matt Mitguard / Environmental Protection Agency - Region 9	John Martin / Beavers & Young	Ltr: EPA will reevaluate Leviathan no further action status based on new information & transmits 3/3/90 screening site inspection reassessment, w/encl	75476
6/12/1997	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	TDD: Site assessment non-removal activities, w/amendments A-E, acceptance rpts & AOC	167443
6/13/1997	Alexis Strauss / Environmental Protection Agency - Region 9	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Response to concerns raised in Washoe Tribe's 5/2/97 ltr & at 4/29 meeting re Leviathan Mine & its impact on Tribe, w/marginalia	75477
6/26/1997	David Herbst / Univ of California - Sierra Nevada Aquatic Research Laboratory	CA Regional Water Quality Control Board - Lahontan Region	Aquatic invertebrate bioassessment monitoring of acid mine drainage impacts in Leviathan Creek watershed (revised)	45153
6/30/1997	B Warden / NONE	Jacques Landy / Environmental Protection Agency - Region 9	Email: 5-year workplan addendum	2023981
7/11/1997	Jacques Landy / Environmental Protection Agency - Region 9	John Martin / Beavers & Young	TL: Settlement & release of liability agreement between California Regional Water Quality Control Board, Lahontan Region & Atlantic Richfield Co (ARCO)	2023975
8/15/1997	California Laboratory Services	-	Lahontan CRWQCB water sample sites & list of sampling sites for data summary sheets, w/maps, chain of custody forms & analytical result rpts (12/95 - 8/97)	73836
9/1/1997	-	-	Site treatibility summary	45254
9/9/1997	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	TDD: Site assessment removal activities, w/amendment A, acceptance rpts & AOC	167444
9/16/1997	Ken Pitt / US Forest Service	-	Leviathan Mine field review notes fr 9/12/97 site visit, w/TL to M Marks fr K Pitt 9/25/97	76287
9/17/1997	Richard Sugarek / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Memo: Site visit (9/12/97) observations	45257
9/19/1997	-	-	Anaconda & Atlantic Richfield corporate documents - Anaconda relationship to ARCO & Atlantic Richfield partnership search results	75538
9/19/1997	Science Applications International Corp	-	Co history & mergers re Anaconda Copper Mining Co, Anaconda Co, ARCO & Atlantic Richfield Co (Appendix C), w/marginalia	44036
9/19/1997	-	-	Corp & limited partnership search - Atlantic Richfield	44041
9/24/1997	Daniel Suter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Action Memo: Request for approval of removal action, w/enforcement strategy & attchs	75508
9/25/1997	Keith Takata / Environmental Protection Agency - Region 9	C Knowles / ARCO Environmental Remediation, L L C	Ltr: General notice of federal interest re Atlantic Richfield Co (ARCO), w/o certified mail receipt #274-217-263 & #274-218-030	45269
9/25/1997	Ranjit Gill / CA Regional Water Quality Control Board - Lahontan Region	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Supports EPA's proposed emergency response activities re acid mine drainage (AMD)	45270
9/25/1997	Environmental Protection Agency - Region 9	-	Site contact information, US Dept of the Interior	2023976
9/29/1997	Daniel Suter / Environmental Protection Agency - Region 9	-	Pollution report (POLREP) #1	47736
9/30/1997	Daniel Suter / Environmental Protection Agency - Region 9	Dennis Gebhardt / Washoe Tribe of Nevada & California	Ltr: Notification of natural resource trustees re time critical removal action at site, w/addressee list	2023977
9/30/1997	Daniel Suter / Environmental Protection Agency - Region 9	Addressees / NONE	Ltr: Notification of natural resource trustees re time critical removal action at site, w/o addressee list	75466
10/1/1997	C Knowles / ARCO Environmental Remediation, L L C	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Answers invitation to participate in response actions	45542
10/1/1997	C Knowles / ARCO Environmental Remediation, L L C	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Answers invitation to participate in response actions	2023980
10/8/1997	Keith Takata / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Notifies CA of removal action commencement & encourages CA to join Atlantic Richfield Co to implement permanent site measures	45271
10/8/1997	Keith Takata / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Notifies CA of removal action commencement & encourages CA to join Atlantic Richfield Co to implement permanent site measures	2023988
10/10/1997	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	John Martin / Beavers & Young	Ltr: Responds to Washoe Tribe of NV & CA's offer to enter into agreement re implementation of site projects	45272
10/11/1997	Daniel Suter / Environmental Protection Agency - Region 9	-	Pollution report (POLREP) #2	47737
10/25/1997	Daniel Suter / Environmental Protection Agency - Region 9	-	Pollution report (POLREP) #4	47739
10/25/1997	Daniel Suter / Environmental Protection Agency - Region 9	-	Pollution report (POLREP) #5	47740
12/31/1997	Jack Blackwell / US Forest Service	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Forest Service would like to become member of Leviathan Mine Natural Resource Damages Trustee Discussion Group & lists key project contacts, w/FS meeting minutes	77067
1/1/1998	NV Dept of Conservation & Natural Resources - Div of Wildlife	-	Sport fish restoration - east & main Carson River region - federal aid job progress rpt (1/1/97-12/31/97)	44641
1/1/1998	Stephen Lawrence / US Geological Survey	-	Trace-element enrichment in streambed sediment & crayfish, Carson & Truckee Rivers, NV & CA (9/92), w/draft - occurrence of trace elements in Bryant Creek drainage basin	44348
1/1/1998	Stephen Lawrence / US Geological Survey Michael Lico / US Geological Survey Hugh Bevans / US Geological Survey	-	Water quality in Las Vegas valley area & Carson & Truckee River basins, NV & CA, 1992-1996	45282
1/9/1998	NV Dept of Conservation & Natural Resources	NV Dept of Conservation & Natural Resources - Div of Wildlife	Ltr: Information fr computer files & transmits list of references fr historical newspaper sources re Carson River fisheries, w/attch & TL to D Kaffer, fr M Sevon	45227
1/20/1998	Will Duncan / Environmental Protection Agency - Superfund Technical Assessment & Response Team Vicki Frankel / Environmental Protection Agency - Superfund Technical Assessment & Response Team	Daniel Suter / Environmental Protection Agency - Region 9	Memo: Recommends treatment options w/o attch	45260
1/23/1998	John Martin / Beavers & Young	Gwendolyn Eng / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry	Ltr: Confirms Washoe Tribes request for site health consultation, w/o attchs, w/marginalia by G Eng	45159
1/26/1998	US Dept of the Interior - Fish & Wildlife Service, Region 1	-	Site study citation list, w/TL to D Suter fr S Wiemeyer	2023839
1/27/1998	US Dept of the Interior - Fish & Wildlife Service, Region 1	-	Site literature list, site studies, workplans & correspondence, w/TL to D Suter fr L Thompson	2023838
1/30/1998	Peter Tuttle / US Dept of the Interior - Fish & Wildlife Service	Larry Thompson / US Dept of the Interior - Fish & Wildlife Service Dan Welsh / US Dept of the Interior - Fish & Wildlife Service	TL: 11/24/68 ltr establishing occurrence of cutthroat trout in creek	75546

2/1/1998	Environmental Protection Agency - Region 9	-	Fact Sheet: EPA to continue work at site	75479
2/1/1998	-	-	Map: Bryant Creek & East Fork Carson River fr site to Dresslerville marking Washoe Tribe, US Forest Service & private lands	45161
2/1/1998	-	-	Map: Site (East Fork Carson River & Bryant Creek) w/marginalia by K Mayer	45160
2/3/1998	Christine Chong / Atlantic Richfield Co	Charles McKinley / US Dept of the Interior - Office of the Solicitor	Memo: Transmits documentation of relationship between Texas Gulf Sulphur & PCS Phosphate Co, Inc, Dunn & Bradstreet rpt & co summaries for PCS Phosphate Co & Potash Corp of Saskatchewan, w/encls	44025
2/4/1998	-	-	Joint prosectution confidentiality agreement pertaining to documents re site response & restoration	45244
2/17/1998	-	-	Memorandum of agreement (MOA) among Washoe Tribe of Nevada & California, EPA, US Department of Interior, State of Nevada & US Department of Agriculture - revised draft	76032
2/18/1998	Pat Coffin / US Dept of the Interior - Fish & Wildlife Service	Stanley Wiemeyer / US Dept of the Interior - Fish & Wildlife Service	Email: Bryant Creek could support trout if cleaned up - Bryant Creek not addressed as part of LCT recovery for Carson River Basin, w/history	76243
2/21/1998	Sharon Carter / Record-Courier, The	-	Newsclip: Chemist warns of mercury in crawdads here, w/rtg slip to S Wilson fr J Smitherman (2/27/98)	45276
2/23/1998	-	Mark Flickinger / ARCO Environmental Remediation, L L C	Ltr: Invites ARCO & Lahontan regional water quality control board to meet natural resource trustees re site removal action to control contaminated liquids releases (partial final draft)	45215
2/24/1998	Kevin Mayer / Environmental Protection Agency - Region 9 Dennis Gebhardt / Washoe Tribe of Nevada & California	Mark Flickinger / ARCO Environmental Remediation, L L C	Ltr: Confirms ARCO's attendance at 3/4/98 natural resource trustee meeting re ARCOs role in future site actions, w/o encls	45266
2/24/1998	John Krause / US Dept of the Interior - Bureau of Indian Affairs	Jeff Loman / US Dept of the Interior	Memo: Forwards email information re Carson River Fishery Conference, w/marginalia	45216
2/26/1998	US Geological Survey	-	Press Release: Urban activity & past mining practices may add chemicals to Carson & Truckee Rivers	44344
2/27/1998	Dennis Gebhardt / Washoe Tribe of Nevada & California	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments re US Geologic Survey #97-4258 (Trace-element enrichment in streambed & crayfish, Carson & Truckee Rivers, NV & CA)w/attchs	45162
3/4/1998	Kevin Mayer / Environmental Protection Agency - Region 9	-	Mtg Agenda: Leviathan Mine (Reno, NV)	44534
3/4/1998	-	-	Trustee communication list & PRP communication list	90721
3/5/1998	-	-	Graph re flow & stage for East Fork Carson River - Markleeville (monitor precipitation & runoff site activity) w/marginalia by D Gebhardt	45280
3/6/1998	-	-	Graph re Spratt Creek - Snotel site, w/marginalia by D Gebhardt	45279
3/14/1998	Sheila Gardner / Record-Courier, The	-	Newsclipping: Officials negotiate cleanup, w/marginalia	45533
3/16/1998	CA Regional Water Quality Control Board - Lahontan Region	-	Memo: Transmits State of CA budget change proposal for fiscal year 1998-1999 & 5-year workplan, w/budget change proposal & addendum to 5-year work plan, w/o 5-year workplan	45146
3/16/1998	Washoe Tribe of Nevada & California	-	Request for qualifications (to prepare natural resource damage assessment plan) w/TL fr D Gebhardt to K Mayer 3/24/98	45163
4/5/1998	-	-	Map: Proposed data sites - 1998 (Doud Creek, Bryant Creek, Barney Riley Creek, Mountaineer Creek, Leviathan Creek)	45164
5/4/1998	Mary Marks / US Forest Service	Dennis Gebhardt / Washoe Tribe of Nevada & California	Memo: Site water sampling program w/encls	44409
5/6/1998	Karen Johnson / Ecology & Environment, Inc	Colleen Holley / NV Dept of Conservation & Natural Resources - Div of Wildlife Leroy McLelland / NV Dept of Conservation & Natural Resources - Div of Wildlife	Contact rpt re Lahontan cutthroat trout in Carson River basin	75529
5/11/1998	Keith Takata / Environmental Protection Agency - Region 9	-	Administrative order on consent #98-07 for removal action, w/attchs	45557
5/11/1998	Barry Welch / Leviathan Mine Council	-	Ltr: Mtg notes (2/19/98) re natural resource damage assessment, w/encls	45172
5/13/1998	Wayne Nordwall / US Dept of the Interior - Bureau of Indian Affairs Brian Wallace / Washoe Tribe of Nevada & California Jack Blackwell / US Forest Service Keith Takata / Environmental Protection Agency - Region 9	-	Memorandum of agreement (MOA) re site natural resource damages	45171
5/14/1998	US Geological Survey - Nevada District	-	Web Page: USGS Nevada publications search, articles re Leviathan Mine & Leviathan Creek, w/marginalia	2023986
5/19/1998	Will Duncan / Ecology & Environment, Inc	Karen Nelson / Environmental Protection Agency - Region 9	Ltr: Leviathan acid mine drainage treatment technology, w/attchs	101436
5/26/1998	Jack Blackwell / US Forest Service	Carol Yeatman / Washoe Tribe of Nevada & California	Ltr: Designates M Marks, M Manderbach, K Pitt as representative, alternate representative, & legal counsel respectively re memorandum of agreement (MOA)	44432
6/1/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	-	Ltr: Transmits workshop agenda (6/3/98) & CA water resources control board resolution authorizing agreement with Atlantic Richfield Co re site removal &/or treatment of acid mine drainage to increase storage pond capacity	45147
6/1/1998	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Site 1998 workplan (draft) w/appendices A-B	45809
6/1/1998	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Workplan for response action at site w/o appendices & w/comments & TL fr K Mayer to C Yeatman 6/2/98	44543
6/1/1998	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Workplan for response action at site, w/o appendices	75481
6/2/1998	Mary Marks / US Forest Service - Humboldt-Toiyabe National Forest	Larry Thompson / US Dept of the Interior - Fish & Wildlife Service	Ltr: Water filled pit discovered in upper reaches of Aspen Creek during site visit & transmits map showing CA Water Quality Control Board water sampling locations, w/encl	76260
6/3/1998	Christine Chong / Atlantic Richfield Co	Charles McKinley / US Dept of the Interior - Office of the Solicitor	Ltr: ARCO Environmental Remediation discontinues seeking site access permission fr RWQCB for EPA re administrative order on consent (AOC) #98-07, w/TL	45572
6/4/1998	Terry Braun / Steffen, Robertson & Kirsten	Kevin Mayer / Environmental Protection Agency - Region 9 Tony Smokey / Washoe Tribe of Nevada & California Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Memo: Notification of planned field activities (6/8/98) w/marginalia	45283
6/8/1998	Tony Schwarz / ARCO Environmental Remediation, L L C	-	Memo: Site status rpt #2 (5/98)	75522
6/11/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Transmits site health & safety plan w/attchs	45620
6/19/1998	Carol Yeatman / Washoe Tribe of Nevada & California	Neal Brody / Atlantic Richfield Co	Ltr: Transmits & discusses proposed assessments of injuries to aquatic natural resources - phase 1 (6/18/98)	45165
6/22/1998	John Nowlin / US Geological Survey	Leviathan Mine Technical Group	Ltr: Comments on draft monitoring plan, w/attchs & TL fr J Nowlin to N Black	45281
6/22/1998	J M Beck & Assoc	-	Site removal action - workplan addendum #001 - perimeter monitoring plan for pond 1 enhanced evaporation system operations w/TL to K Mayer fr J Beck (6/23/98)	45595
6/25/1998	Lois Schiffer / US Dept of Justice - Office of Attorney General Walter Pettit / CA Water Resources Control Board Harold Singer / CA Regional Water Quality Control Board - Lahontan Region Brian Wallace / Washoe Tribe of Nevada & California Jon Mueller / US Dept of Justice - Environment & Natural Resources Div Neal Brody / Atlantic Richfield Co	-	Tolling agreement	45561
7/1/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Requests written concurrence for expansion of enhanced evaporative system at site	45166
7/1/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Requests written concurrence re proposal to expand evaporative system w/TL to C McKinley fr D Suter & marginalia	45571
7/1/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Transmits site characterization workplan, w/o encl	101105
7/6/1998	Carol Yeatman / Washoe Tribe of Nevada & California	Leviathan Mine Council	Ltr: Transmits 2 Excel 5.0 files - flowshet.xls & ndep.xls & 3.5 in computer disc w/attch	45955
7/15/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Comments re proposed expansion of enhanced evaporation system	45145
7/15/1998	Eugene Mancini / Atlantic Richfield Co	Carol Yeatman / Washoe Tribe of Nevada & California	Ltr: Process to allow ARCO to fund USGS for surface water quality & flow monitoring w/site aquatic resource assessment program	45566
7/15/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	-	Memo: Site status rpt #3 (6/98), w/TL fr C Kezos 7/21/98	45570
7/17/1998	U S Filter Recovery Services (California), Inc	Environmental Protection Agency - Region 9	Certificate of treatment & waste management re waste water	45274
7/22/1998	CA Dept of Justice - Office of the Attorney General	Environmental Protection Agency - Region 9	Consent & agreement for entry & access (draft) w/TL to C McKinley fr S Russell (7/31/98)	45142
7/23/1998	Jack Blackwell / US Forest Service	-	Time critical removal action memorandum, w/TL to Forest Supervisor, Humboldt-Toiyabe NF fr J Blackwell	75507
7/28/1998	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9 John Kemmerer / Environmental Protection Agency - Region 9 Terry Brubaker / Environmental Protection Agency	Email: Data analysis re arsenic, metals & overspray deposition, w/o attch (Arco722.le)	2023978
7/28/1998	CA Regional Water Quality Control Board - Lahontan Region	-	Sampling of overspray (buckets of sand) - metals & STLC metals (draft) w/TL to K Mayer fr R Tucker & marginalia by K Mayer	45143
7/28/1998	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Site emergency removal action - workplan addendum #002 - perimeter monitoring plan for expanded (ponds 1, 2S, 2N & 3) enhanced evaporation system operations w/TL to D Suter fr A Schwarz (7/29/98)	45618
7/29/1998	Dan Suter / Environmental Protection Agency - Region 9	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Administrative Order on Consent workplan, approves conditions re enhanced evaporation system expansion	2023979
8/1/1998	ARCO Environmental Remediation, L L C	Leviathan Mine Council	Phase 1 NRDA proposed workplan w/attchs & TL to C Yeatman fr N Brody (8/14/98)	45594
8/6/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	-	Memo: Site status rpt #4 (7/98)	45585
8/14/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Comments re proposed site expansion of enhanced evaporation system at site	45148
8/17/1998	Leviathan Mine Council Neal Brody / Atlantic Richfield Co	-	Agreement re communications to & fr CA Dept of Fish & Game	45591
8/25/1998	Eugene Mancini / Atlantic Richfield Co	Leviathan Mine Council	Memo: Transmits sediment pore water sampling - rationale & technique, w/acute toxicity of site water to rainbow trout under static-renewal test conditions, & pollution incident daily resource rpt (govt personnel travel expenses) & TLs	45167
9/3/1998	Atlantic Richfield Co	-	Funding & participation agreement for assessment of natural resource damages between ARCO, Washoe Tribe of NV & CA, US Dept of Interior, US Dept of Agriculture - Forest Service, & CA Dept of Fish & Game, w/marginalia & exhibits A-1, A-2, B-C	45170
9/11/1998	Robert Dodds / CA Regional Water Quality Control Board - Lahontan Region	-	Ltr: Transmits & discusses initial study & notice of preparation of draft environmental document for proposed amendments to water quality control plan for Lahontan Basin w/encl	45149
9/17/1998	US Forest Service - Humboldt-Toiyabe National Forest CA Regional Water Quality Control Board - Lahontan Region	-	Draft Collection agreement between USDA Forest Service, Humboldt-Toiyabe National Forest & CA Regional Water Quality Control Board-Lahontan Region, w/TL to C Stetler fr M Marks	76229
9/18/1998	Jim Kubalik / ARCO Environmental Remediation, L L C	Ranjit Gill / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Site air monitoring	45535
9/24/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Requests draft workplan delivery date extension re administrative order on consent (AOC) #98-07 w/attch	45569
9/24/1998	Neal Brody / Atlantic Richfield Co	Charles McKinley / Environmental Protection Agency - Region 9	Memo: Transmits PCS Phosphate Co, Inc corporate history, Western Clay & Metals Co & Calpine Co articles of incorporation & dissolution, w/encls	44023
9/29/1998	Daniel Suter / Environmental Protection Agency - Region 9	-	Pollution report (POLREP) #6 (FINAL)	47741
9/30/1998	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Notice of intent to reimburse Atlantic Richfield Co (ARCO), contributions to culvert replacement & road improvement work near site	2023843
10/1/1998	S R K Consulting	Environmental Protection Agency - Region 9	Site stream monitoring program - spring 1998	45616
10/5/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	-	Memo: Site status rpt #6 (9/98)	45598
10/8/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Requests EPA's concurrence to modified removal action activities, w/technical memorandum - active treatment with sludge stabilization	45568
10/13/1998	Gloria Flora / US Forest Service - Humboldt-Toiyabe National Forest	Nancy Kang / US Army Corps of Engineers	Ltr: Request for US Army Corp of Engineers to identify ARARs re response action for Leviathan Mine road, w/encl	76230
10/13/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Drill cuttings proposal	45536
10/20/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Requests EPA extend compliance deadline of 11/1/98 fr administrative order on consent (AOC) #98-07	45567
10/28/1998	CA Regional Water Quality Control Board - Lahontan Region US Forest Service - Intermountain Region	-	Draft participating agreement between CA Regional Water Quality Control Board-Lahontan Region & US Department of Agriculture - Forest Service, Intermountain Region for Leviathan Mine removal action, w/TL to S Russell & B Dodds fr K Pitt	76234
10/28/1998	Jacques Landy / Environmental Protection Agency - Region 9	Judith Unsicker / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Suggests sharing Bryant Creek total maximum daily loads (TMDLs) with Leviathan Mine Council re proposed basin plan amendments, w/marginalia	44542
10/30/1998	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Neal Brody / Atlantic Richfield Co	Ltr: Response to ARCO's schedule extension requests re administrative order on consent (AOC) #98-07	45574
11/2/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Concerns re proposed alterations to site overflow structure	45151
11/2/1998	Brian Wallace / Washoe Tribe of Nevada & California	Thomas Wright / P C S Phosphate Co, Inc	Ltr: Notification of & invitation to participate in site natural resource damage assessment	44020
11/2/1998	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Anthony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Response to ARCO's 9/3/98 ltr re use of enhanced evaporation & pond overspray at site, w/o encl	45150
11/6/1998	Don McHarg / Summit Engineering Corp	Tony Schwarz / ARCO Environmental Remediation, L L C	Ltr: Pond surface water & invert pipe elevations, pond 1, pond 2 S, pond 2 N, pond 3, pond 4	2023826
11/12/1998	Kevin Mayer / Environmental Protection Agency - Region 9	-	Computer Disc: Site water quality data (5/29/98-11/12/98), 3.5 inches	45946
11/19/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Leviathan Mine Council	Ltr: Transmits site water quality data tables & surface water sampling plan for Leviathan Mine, water year 1998, w/attchs	45144
11/20/1998	Leviathan Mine Council	-	Mtg Agenda (draft): Leviathan Mine Council mtgs 11/19/98-11/20/98	2023984
11/25/1998	Robert King / Brooks, Pierce, McLendon, Humphrey & Leonard (Attorneys)	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Requests time extension for PCS Phosphate Co response re site involvement	43958
12/9/1998	Charles McKinley / US Dept of the Interior - Office of the Solicitor	Robert King / Brooks, Pierce, McLendon, Humphrey & Leonard (Attorneys)	Ltr: Responds to request for site documents	45543
12/10/1998	Environmental Protection Agency - Region 9	-	Tribal risk assessment conference (12/8/98 - 12/10/98) - Las Vegas, NV	44433
12/18/1998	Michael Hagood / ARCO Environmental Remediation, L L C	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Responds to J Wirtschafter's 10/30/98 ltr & reports on ARCO's status of compliance w/AOC 98-07, w/encls	101109
12/20/1998	Christy Chalmers / Nevada Appeal (Newspaper)	-	Newsclip: Federal money could pay for flood warning, mine cleanup	2023884
12/23/1998	Kim Muratore / Environmental Protection Agency - Region 9	-	Computer search results on corporation & limited partnership - all available states	90722
1/1/1999	US Geological Survey	-	Excerpt: Water resources data, Nevada, water year 1998, #98-NV-1, Leviathan Creek reconnaissance project	2023874
1/6/1999	Michael Hagood / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Fax TL: Transmits survey requested, w/o encl	101116
1/14/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Michael Hagood / ARCO Environmental Remediation, L L C	Ltr: Confirms site investigation draft workplan due date 2/18/99	2023821
1/27/1999	Peter Husby / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9 Ned Black / Environmental Protection Agency - Region 9	Email: Site hydrolab visit 1/22/99, damaged equipment, water quality data	2023845
1/29/1999	Stacy Li / Aquatic Systems Research	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Discusses & transmits site aquatic habitat assessment QA/QC & invoice, w/attchs	2023820
2/1/1999	S R K Consulting	Environmental Protection Agency - Region 9	Draft 1999 supplemental workplan	2023829
2/4/1999	Felicia Marcus / Environmental Protection Agency - Region 9	Gray Davis / CA Office of the Governor	Ltr: Site overview & requests State position re site NPL listing	2023822
2/4/1999	Felicia Marcus / Environmental Protection Agency - Region 9	Kenny Quinn / NV Office of the Governor	Ltr: Site overview & requests State position re site NPL listing	2023823
2/4/1999	Felicia Marcus / Environmental Protection Agency - Region 9	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Site overview & requests State position re site NPL listing	2023824
2/4/1999	Betsy Curnow / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Site overview & requests State position re site NPL listing	2023825
2/16/1999	James Beck / J M Beck & Assoc	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Evaporation pond data & related discussion, w/encls	101117
2/19/1999	Hilda Manuel / US Dept of the Interior - Bureau of Indian Affairs	John Krause / US Dept of the Interior - Bureau of Indian Affairs	Memo: Redelegation of authorized official for Leviathan Mine, CA, natural resource damage assessment & restoration activities, w/attchs	101119
2/22/1999	CA Regional Water Quality Control Board - Lahontan Region	-	Draft resolution authorizing executive director to execute standard agreements re acid mine drainange treatment	2023842
2/22/1999	CA Regional Water Quality Control Board - Lahontan Region	-	Excerpt: Workshop session 3/3/99, considers proposed resolution authorizing executive director to execute standard agreements re acid mine drainage treatment	2023841
2/23/1999	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on ARCO Environmental Remediation status rpt, w/attchs	2023846
3/8/1999	Sandra Stash / ARCO Environmental Remediation, L L C	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Comments on proposed additional natural resource damages assessment	101125
3/8/1999	Jonathan Clark / CA Dept of Fish & Game - Office of Spill Prevention & Response	Mary Marks / US Forest Service - Humboldt-Toiyabe National Forest	Ltr: Fish captured in upper Leviathan Creek derived fr cutthroat trout & transmits results of genetic analysis, w/encl	75516
3/17/1999	Stafford Lehr / CA Dept of Fish & Game	Mary Marks / US Forest Service - Humboldt-Toiyabe National Forest	Ltr: DNA results fr fish captured in upper Leviathan Creek confirmed that it was derived fr Lahontan cutthroat trout evolutionary lineage	76263
3/17/1999	Stafford Lehr / CA Dept of Fish & Game	Stan Weimeyer / US Dept of the Interior - Fish & Wildlife Service	Ltr: DNA results fr fish captured in upper Leviathan Creek confirmed that it was derived fr Lahontan cutthroat trout evolutionary lineage, w/ltr to S Weimeyer fr J Clark 3/8/99 & attch	76241
3/18/1999	Neal Brody / Atlantic Richfield Co	Charles McKinley / US Dept of the Interior - Office of the Solicitor	Ltr: Natural resource damages assessment - ARCO declines to participate in funding or performance of further NRDA activities at site, w/TL to M Manderbach & M Marks fr J Alexander 3/29/99, w/o attch	77099
4/27/1999	Amy Wheaton / KEECO	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Discusses & transmits water quality data, w/attchs (att1.htm & Datarecord.doc)	2023847
4/27/1999	Amy Wheaton / KEECO	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Transmits & comments on Leviathan data, w/attchs	101128
5/7/1999	Kenny Guinn / NV Office of the Governor	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Response to copy of ltr to F Marcus re impacts of mine on surface & ground waters	101130
5/24/1999	Environmental Protection Agency - Region 9	-	Results of computer search under CA corporation & limited partnership records for CALPINE, 00/00/0000 - 5/14/99	90724
6/1/1999	Environmental Protection Agency - Region 9	-	Attach 1 - Potential ARARs for Leviathan Mine removal action memo of 6/99	101132
6/1/1999	-	-	Mtg Agenda: Leviathan Mine mtg at Cal/EPA offices	101133
6/1/1999	Catherine Abel / Mountain News	-	Newsclip: Alpine mine may be Superfund site, w/attch	2023883
6/28/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits 7 documents requested, w/list only, w/o docs	101135
6/30/1999	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	1999 Treatability study/removal action project workplan	75536
7/2/1999	U R S Corp - U R S Greiner Woodward Clyde	-	Biweekly progress rpt, 6/15/99 - 6/29/99	101136
7/22/1999	Mary Marks / US Forest Service - Humboldt-Toiyabe National Forest	Kim Muratore / Environmental Protection Agency - Region 9	Memo: Transmits survey map & map - on ground GPS of disturbances, w/marginalia by Kim Muratore on GPS map	76244
7/29/1999	William Donovan / Piedmont Surveying Co	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Request for survey data fr ARCO, w/CA statute on real property access	90850
8/17/1999	Environmental Protection Agency - Region 9	Michael Bowlin / Atlantic Richfield Co	Ltr: 104(e) request for information w/o mail receipt Z 039 960 667 (concurrence copy)	90731
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Michael Bowlin / Atlantic Richfield Co	Ltr: 104(e) request for information, w/encls, w/o mail receipt Z039-960-667	75509
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Geodesic Structures	Ltr: Request for access to private property for survey work, w/signed access agreement	90739
9/15/1999	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Response to 8/17/99 EPA 104(e) request for information (compact disc only)	70431
9/15/1999	ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Response to 8/17/99 EPA 104(e) request for information, w/o compact disc	69699
9/16/1999	Neal Brody / Atlantic Richfield Co	Kim Muratore / Environmental Protection Agency - Region 9	TL: Response to 104(e) request for information	75511
10/22/1999	Environmental Protection Agency - Region 9	-	Remedial site assessment decision - further assessment needed under CERCLA, site proposed for NPL on 10/22/99, w/NPL fact sheet 10/99	73826
12/6/1999	David Griffith, Resident / City of Markleeville	Carolyn Douglas / Environmental Protection Agency - Region 9	Ltr: Comments on proposed Leviathan Mine National Priorities List (NPL) listing, w/o mail receipt	2023877
12/6/1999	-	-	On-line corporate data search of Centex Corp	75506
12/14/1999	Sandra Richardson / Science Applications International Corp	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Transmits affidavit of Allan Van DeVelde re sighting of black bear cub drinking water fr Leviathan Creek, w/encl	75519
12/21/1999	William Duffy / Davis, Graham & Stubbs (Attorneys)	Carolyn Douglas / Environmental Protection Agency - Region 9 Environmental Protection Agency - Superfund Docket	Ltr: Comments on Leviathan Mine proposed NPL listing	2023862
12/21/1999	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Washington, D C	Ltr: Comments on proposed Leviathan Mine listing, National Priorities List (NPL), w/o encl	2023872
12/22/1999	Kirk Johnson / Robertson & Benevento (Attorneys)	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Request for EPA's help re potential environmental problems with Leviathan Mine Road & property of Terry & Susan Hunt	75514
1/19/2000	Michael Lico / US Geological Survey Karen Thomas / US Geological Survey	-	Data on stream-water & bed-sediment quality in vicinity of Leviathan Mine, Alpine County, CA & Douglas County, NV (draft), w/TL & request for comments to S Wiemeyer fr K Thomas 1/20/00	101107
1/20/2000	Dave Bolick / Carson Valley Chamber of Commerce & Visitors Authority	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Expresses thanks re 1/19/00 Carson Valley Chamber of Commerce presentation	2023859
1/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Redacted, FOIA Exs 5 & 7) Final title search & survey for Leviathan Mine Site	103464
2/14/2000	Environmental Protection Agency - Region 9	US Forest Service - Intermountain Region	Memorandum of understanding between EPA-9 & USDA-Forest Service Region 4	73812
2/15/2000	Neal Brody / ARCO Environmental Remediation, L L C	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Ltr: Transmits modification of 1998 administrative order on consent re removal actions & documentation of account will be provided, w/o encl	73824
2/18/2000	Keith Takata / Environmental Protection Agency - Region 9	-	Modification of administrative order on consent for removal action, docket #98-07A	68168
2/22/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Neal Brody / ARCO Environmental Remediation, L L C	Ltr: Transmits modification of 1998 administrative order on consent re removal actions & confirmation that ARCO will provide documentation of accoumt, w/o encl	73823
2/23/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Leviathan Mine Council	Ltr: Discusses & transmits comments on proposal to list Leviathan Mine as National Priority List (NPL) site, w/o encls, w/distribution list	2023854
2/23/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Timothy Seward / Washoe Tribe of Nevada & California	TL: Modification of 1998 administrative order on consent re removal actions	73822
2/24/2000	Jeff DeLong / Reno Gazette-Journal	-	Newsclip: Officials fear sulfur mine will overflow again, w/email TL to K Mayer fr F Felter	2023855
2/25/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Discusses & transmits surface water spring sampling recommendations, w/encl	2023873
3/6/2000	Kathi Moore / Environmental Protection Agency - Region 9	Laurence Hirsch / Centex Corp	Ltr: 104(e) request for information, w/encls, w/o mail receipt Z039-960-787	75498
3/6/2000	Kathi Moore / Environmental Protection Agency - Region 9	Laurence Hirsch / Centex Corp	Ltr: 104(e) request for information, w/mail receipt Z 039 960 787 (concurrence copy)	90750
3/6/2000	Kathi Moore / Environmental Protection Agency - Region 9	Michael Bowlin / Atlantic Richfield Co	Ltr: 104(e) supplemental request for information, w/mail receipt Z 039 960 786 (concurrence copy)	90746
3/6/2000	Kathi Moore / Environmental Protection Agency - Region 9	Michael Bowlin / Atlantic Richfield Co	Ltr: Supplemental 104(e) request for information, w/encls, w/o mail receipt Z 039 960 786	75501
3/27/2000	Timothy Seward / Washoe Tribe of Nevada & California	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Comments on draft statement of work for RI/FS, w/TL 3/28/00	2023856
3/28/2000	CA Water Resources Control Board	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Pond overflow prevention strategy, w/attch (pond freeboard capacity.xls)	2023857
3/29/2000	Kim Muratore / Environmental Protection Agency - Region 9	Postmaster / US Postal Service (Dallas, TX)	Ltr: Request for copy of return receipt showing date & person who signed for ltr, w/copy of certified mail receipt Z039-960-786	73820
3/29/2000	Kim Muratore / Environmental Protection Agency - Region 9	Postmaster / US Postal Service (Los Angeles)	Ltr: Request for copy of return receipt showing date & person who signed for ltr, w/copy of certified mail receipt Z039-960-786	73821
3/31/2000	Raymond Smerge / Centex Corp	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Response to 104(e) request for information, w/encl	73819
3/31/2000	Raymond Smerge / Centex Corp	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Response to 104(e) request for information, w/encl	2023870
4/3/2000	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R00S27, SDG 00077A, 9 water samples for anions, sulfide & total dissolved solids, collected 3/30/00, w/TL to K Mayer fr B Bettencourt 4/7/2000	2023866
4/6/2000	Neal Brody / Atlantic Richfield Co	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Ltr: Confirms voicemail message granting 2-wk extension through 4/25/2000 to submit response to 104(e) supplemental request for information	90755
5/9/2000	Sandra Stash / ARCO Environmental Remediation, L L C	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: ARCO agreement to prepare & carry out EE/CA workplan, SOW funding	2023865
5/10/2000	Richard Bryan / US Senate - Office of Richard Bryan	-	Press Release: Bryan announces Leviathan Mine listed by EPA as Superfund Site, placement on NPL will help speed mine cleanup	2023875
5/10/2000	Environmental Protection Agency - Region 9	-	Press Release: EPA finalizes Leviathan Mine as Superfund Site	2023876
5/11/2000	Geoff Dornan / Nevada Appeal (Newspaper)	-	Newsclip: Feds put Leviathan Mine on Superfund site	2023881
5/11/2000	Jeff DeLong / Reno Gazette-Journal	-	Newsclip: Leviathan mine to get Superfund money for cleanup	2023879
5/11/2000	Contra Costa Times (Newspaper) Tom Gardner / Associated Press	-	Newsclip: Sulfur mine will qualify for Federal cleanup funds	2023882
5/11/2000	Mary Thompson / Tahoe Daily Tribune	-	Newsclip: Superfunding granted for Leviathan Mine cleanup	2023880
5/11/2000	Mary Thompson / Tahoe Daily Tribune	-	Newsclip: Superfunding granted for Leviathan Mine cleanup, w/2nd newsclip & TL to K Muratore fr K Mayer	90756
5/15/2000	Neal Brody / Atlantic Richfield Co	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Response to supplemental 104(e) request for information, w/encls	75424
5/24/2000	Environmental Protection Agency - Region 9	-	Public Notice: Community mtg agenda, 5/24/00	2023878
6/21/2000	Mark Chalfant / Environmental Protection Agency - Region 9	Richard Warner / Temple-Inland, Inc	TL: Executed tolling agreement between Temple-Inland, Inc, Casmalia Resources Site Steering Committee (CRSSC) & USA, [CDM128173]	94824
6/26/2000	Kim Muratore / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	TL: Copy of EPA rpt Leviathan Mine ownership & operational history	75425
6/30/2000	Mary Marks / US Forest Service	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Transmits copies of documents flagged during review of Leviathan Mine file & Steven Brooks is now on-scene coordinator, w/o encl	77056
7/19/2000	Environmental Protection Agency - Region 9	-	Administrative abatement action for removal action, docket #2000-16, w/o attch	99109
8/14/2000	-	-	Draft statement of work for Leviathan Mine	90758
9/5/2000	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Monthly progress rpt, 7/19/00-7/31/00, 8/1/00-8/31/00, pond water treatment, site monitoring, revegetation & site maintenance	2023861
9/26/2000	Edward Bates / Environmental Protection Agency - National Risk Management Research Laboratory	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Discussion notes re 9/12/00 site visit	2023868
10/1/2000	CA Dept of Fish & Game	-	Leviathan Mine natural resources damage assessment, phase 1 - fisheries assessment	104956
10/3/2000	David Milton / H P T Research, Inc	Rob Tucker / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Discusses & transmits specimen re AIG general liability & pollution legal liability policy, w/o attch	2023863
10/8/2000	Jeff DeLong / Reno Gazette-Journal	-	Newsclip: Scientists encouraged by environmental work on toxic mine	2023867
10/9/2000	David Milton / H P T Research, Inc	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Discusses & transmits proposed escrow account agreement to replace standard construction performance bond, w/attch	2023869
10/12/2000	Ned Black / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Proposed Riparian Conservation Project (RCP) habitat evaluation, 10/5/00, N of Truckee	2023871
10/19/2000	Christopher Kamper / Davis, Graham & Stubbs (Attorneys)	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	TL: (No message)	2023858
10/27/2000	Daniel McMindes / US Army Corps of Engineers - Sacramento District	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Site visit, mtg notes, & recon data, 10/24/00	2023864
11/6/2000	Environmental Protection Agency - Region 9	-	Mtg Agenda (draft): USGS office, Carnelian Bay	2023860
11/14/2000	Jean Martin / Atlantic Richfield Co	Kim Muratore / Environmental Protection Agency - Region 9	Ltr: Response to supplemental 104(e) request for information, additional documents discovered in Univ of Wyoming collection of Anaconda materials, w/encls	87432
11/15/2000	Stafford Lehr / CA Dept of Fish & Game	Daniel Ferriter / ARCO Environmental Remediation, L L C	TL: Leviathan Mine natural resources damage assessment phase 1 fisheries assessment, 10/00, w/distribution list	2023851
11/17/2000	Kathi Moore / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Issuance of Unilateral Administrative Order (UAO) to ARCO, early response actions & RI	2023970
11/22/2000	Environmental Protection Agency - Region 9	-	Administrative order for early response actions & RI/FS, docket #2001-05, w/attchs & TL fr K Takata to S Stash 11/22/00	85869
11/22/2000	Environmental Protection Agency - Region 9	-	Press Release: EPA issues order to ARCO for Leviathan Mine cleanup	2023885
12/1/2000	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	2000 year-end rpt, w/TL to K Mayer fr C Stetler, 12/20/2000	101151
12/4/2000	Sandra Stash / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Notice of intent to comply with administrative order #2001-05 for early response actions & RI/FS	2023815
12/5/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Sandra Stash / ARCO Environmental Remediation, L L C	Ltr: Discusses 12/14/00 ltr, intent to comply re Administrative Order for early response actions & RI/FS, D Ferriter project manager, deliverables schedule	2023971
12/7/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Discusses & transmits water & sediment sample analytical results fr Dr Herbst, w/o attch	2023853
1/1/2001	Montgomery Watson, Inc	ARCO Environmental Remediation, L L C	Draft site management plan, w/attch, apps A-D, & TL to K Mayer fr D Ferriter 1/12/01	2023818
1/16/2001	CA Regional Water Quality Control Board - Lahontan Region	-	Excerpt: Biphasic daily operational costs 2001, 1/16/01, w/marginalia	2023817
3/23/2001	Brian Wallace / Washoe Tribe of Nevada & California	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Washoe Tribe participation re EPA & ARCO mtg 3/6/01	2023828
4/2/2001	Keith Takata / Environmental Protection Agency - Region 9	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Washoe Tribe & EPA communication, 3/6/01 ARCO mtg	2023827
5/10/2001	CA Regional Water Quality Control Board - Lahontan Region	-	Request for cleanup & abatement account funds for slope stability study (resolution #6-01-26), w/TL to K Mayer fr S Harada 5/17/01	2037744
5/23/2001	Gwendolyn Eng / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits initial release public health assessment for review & comment, w/o encl	2037745
5/24/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Daniel Ferriter / ARCO Environmental Remediation, L L C	Ltr: Discusses & transmits general comments on draft early response action workplan, w/attch	2023809
6/4/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses proposed early response action workplan	2037747
6/4/2001	ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Draft response to comments dated 5/24/01 re draft early response action workplan, w/attch	2037746
6/4/2001	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Project workplans for 2001 pond water treatment, site maintenance activities, revegetation work, & site monitoring, 5/18/01-6/4/01	2023810
6/29/2001	Brian Wallace / Washoe Tribe of Nevada & California	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Expresses thanks re cleanup mtg & Washoe Tribe community relations	2023816
7/5/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Redacted - FOIA Exs 5 & 7) Action Memo: Request for approval of removal action at Leviathan Mine, w/attchs	100088
7/5/2001	Environmental Protection Agency - Region 9	-	(Redacted - FOIA Exs 5 & 7) Modification to administrative abatement action of 7/19/00, #2000-16(a), w/attchs	100074
7/9/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Comments on & approves 2001 pond treatment workplan & associated workplans	2023811
7/18/2001	Jeff DeLong / Reno Gazette-Journal	-	Newsclip: Leviathan Mine runoff treatment to be renewed, w/email TL to R Greenbaum fr K Mayer	2023812
7/27/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Redacted, FOIA Exs 5 & 7) Action Memo: Request for approval of removal action at Leviathan Mine	101164
7/31/2001	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Notice of intent to comply, EPA modified Administrative Abatement Action (AAA)	2023852
8/1/2001	-	-	Sign-in sheet for public health assessment meeting	2037749
8/8/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (7/01), Administrative Order #2001-05 for early response actions & RI/FS	2023848
8/8/2001	Rob Greenbaum / Washoe Tribe of Nevada & California	Gwendolyn Eng / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry	Memo: Comments on initial release public health assessment	2037748
8/13/2001	Leviathan Mine Council	-	Site contact list including natural resource trustees & EPA	2023831
8/22/2001	Ned Black / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Investigation of seeps/springs along Leviathan Creek, 8/16/01-8/17/01	2023849
9/5/2001	Eric Weldon / Universal Environmental Nevada, Inc	Jeffrey Denison / NV Dept of Conservation & Natural Resources - Div of Environmental Protection	Ltr: Non-RCRA hazardous waste filter cake disposal to US Ecology, Beatty, NV	2023834
9/10/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (8/01), Administrative Order #2001-05 for early response actions & RI/FS	2023837
9/13/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Site waste filter cake disposal to US Ecology, Beatty, NV	2023833
9/17/2001	Joel Bauman / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits Leviathan Creek water quality measurement map, sample dates 7/19/01-8/30/01, w/attch	2023850
9/21/2001	Kevin Mayer / Environmental Protection Agency - Region 9	John Pantano / ARCO Environmental Remediation, L L C	Ltr: Draft site management plan (SMP) requires major revisions & requests 1st phase RI/FS workplan	2023813
9/26/2001	Jeff Munson / Record-Courier, The	-	Newsclip: Leviathan mine ponds cleansed of toxic metals	2023832
10/4/2001	Joel Bauman / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Leviathan Creek pH presentation compact disc, 9/27/01	2023814
10/8/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (9/01), Administrative Order #2001-05 for early response actions & RI/FS	2023835
10/11/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #ARCO 2001-Complete (00 PRP Removal Action Complete 002, 9/30/01)	99058
10/11/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #ARCO 2001-Start (00 PRP Removal Action Start 002, 7/27/01)	99057
10/11/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #RWQCB 2000-Completion (01 PRP Removal Action Complete 003, 11/1/00)	99056
10/11/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #RWQCB 2000-Start (01 PRP Removal Action Start 003, 7/19/00)	99054
10/11/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #RWQCB 2001-Start (01 PRP Removal Action Start 004, 7/5/01)	99059
10/15/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Proposes site visit, mtg, & schedule change re site management plan & phase RI/FS workplan submittals	2023836
11/1/2001	Environmental Protection Agency - Region 9	-	Fact Sheet: Update on cleanup activities	101171
11/7/2001	Environmental Protection Agency - Region 9	-	Public Notice: Community meeting for Washoe Tribe on 11/07/01	101173
11/13/2001	Michael Matuska / Federation of Fly Fishers - CA & NV Council	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Dresslerville community mtg comments & request to be added to mailing list	101458
11/28/2001	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region Joel Bauman / Tetra Tech E M, Inc Doug Carey / CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Tetra Tech EMI oversight rpt of Leviathan Mine on 11/28/01, 10:00 AM - 1:30 PM	101459
12/1/2001	Montgomery Watson Harza	ARCO Environmental Remediation, L L C	2002 site management plan (draft)	2037751
12/4/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9	Polrep #RWQCB 2001-Complete (01 PRP Removal Action Complete 004, 11/27/01)	101462
12/28/2001	Steve Ferry / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	TL: 3 copies of 2002 site management plan & 1 electronic version of plan & figures on compact disc	2037750
1/11/2002	Steve Ferry / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses sources in database & requests meeting to discuss database completeness, w/o attch	2037752
1/20/2002	David Herbst / Univ of California - Sierra Nevada Aquatic Research Laboratory	US Forest Service	Bioassessment monitoring of acid mine drainage impact in streams of Leviathan Mine watershed for spring & fall 2000	2037753
1/31/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Requests extension for carriage undertrain treatment completion rpt	2037754
3/25/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Steve Ferry / Atlantic Richfield Co	Ltr: Approves revised site management plan as modified by EPA comments, & transmits Tetra Tech comments dated 2/1/02 & Washoe Tribe comments dated 3/16/03, w/o attchs	2037755
7/28/2003	Environmental Protection Agency - Region 9	-	3rd modification to administrative abatement action #2003-15, w/attch 1,1a & 1b & w/TL fr K Takata to H Singer (00 Enforcement Order 003)	2006458
8/8/2003	Kevin Mayer / Environmental Protection Agency - Region 9	Debbie Schechter / Environmental Protection Agency - Region 9	Memo: Pollution rpt, removal action completion for 2002 field season (01 PRP Removal Complete 005, 2/27/03)	2004174
8/8/2003	Kevin Mayer / Environmental Protection Agency - Region 9	Debbie Schechter / Environmental Protection Agency - Region 9	Memo: Pollution rpt, removal action start, 7/02 (01 PRP Removal Start 005, 7/11/02)	2004175
8/8/2003	Kevin Mayer / Environmental Protection Agency - Region 9	Debbie Schechter / Environmental Protection Agency - Region 9	Memo: Pollution rpt, removal action start, 7/03 (01 PRP Removal Start 006, 7/28/03)	2004173
2/18/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Debbie Schechter / Environmental Protection Agency - Region 9	Memo: Pollution rpt (01 Removal Action Complete/PRP Removal 006)	2006465
4/1/2004	Environmental Protection Agency - Region 9	-	Fact Sheet: Proposal for year-round treatment system	2023830

Doc_date	Author	Addressee	Title_subject	Docid
-	-	-	(Privileged - FOIA ex 5) Mtg Notes: Remedial & regulatory issues re 9/12 meeting, Lahontan Regional Water Quality Control Board, w/marginalia (Privileged document target only)	2074197
-	Joshua Wirtschafter / Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Routing checklist for CERCLA unilateral administrative order (UAO) package (Privileged document target only)	2074237
-	Environmental Protection Agency - Region 9	-	(Privileged, FOIA ex 5) Plans & rpts produced in NRDA - performed according to 43 CFR part 2 (Privileged document target only)	2066340
-	-	-	(Privileged, FOIA ex 6) Map: Approximate location of private property at Leviathan Mine site - showing parcels owned by Alpine Mining Enterprises & other parties (Privileged document target only)	2066359
-	Environmental Protection Agency - Region 9	-	(Privileged, FOIA exs 5 & 7) Areas of high, medium & low overlap between EPA site remediation process & trustee NRDA process (Privileged document target only)	2066385
-	-	-	Excerpt: Site history & development fr PA site final rpt, Toiabe National Forest, Carson Ranger District, 5/91	2024063
-	-	-	Hazard disclosure, safety precautions, & release of liability	2025275
-	Carson Water Subconservancy District	-	Pamphlet: Carson River integrated watershed planning process	2024041
-	E & C Williams	-	Pamphlet: Enthrall environmental products, heavy metals treatment	2024048
1/1/1957	Arthur Brown / CA Dept of Fish & Game	Don Kelly / CA Dept of Fish & Game	Memo: Leviathan Creek pollution rpt	2023998
6/10/1974	Earl Olson / NONE	-	Leviathan landslide	2040104
2/1/1975	Patrick Glancy / US Geological Survey Terry Katzer / US Geological Survey	-	Probable effects of Leviathan Creek basin landslide	2040105
5/1/1983	CA Regional Water Quality Control Board - Lahontan Region Brown & Caldwell Consultants	-	Oversize Drawings: Site pollution abatement project, v2, part C, 2 x 3 ft (4 of 30 drawings)	2066336
1/1/1988	Douglas Glysson / US Geological Survey Thomas Edwards / US Geological Survey	-	Fluvial sediment measurement field methods, rpt #86-531	2024027
4/1/1988	Jacobs Engineering Group, Inc	Environmental Protection Agency - Region 8	(Privileged, FOIA ex 5) Silver Bow - Butte mining claim - title search supplement - summary of ARCO - Anaconda merger, w/exhibits A-P & TL fr C Elsen 10/1/97s (Privileged document target only)	2066338
9/23/1993	Jenny Webster / Institute of Environmental Health & Forensic Science Kirk Nordstrom / US Geological Survey Kathleen Smith / US Geological Survey	-	Chapter: Transport & natural attenuation of Cu, Zn, As & Fe in acid mine drainage of Leviathan & Bryant creeks (Environmental geochemistry of sulfide oxidation, pp 244-260)	2024044
1/1/1994	Larry Shelton / US Geological Survey	-	Field guide, collecting & processing stream water samples for National Water Quality Assessment Program, rpt #94-455	2024028
1/1/1994	Arthur Horowitz / US Geological Survey	-	USGS survey protocol, collection & processing of surface water samples for subsequent determination of inorganic constituents in filtered water, rpt #94-539	2024026
7/13/1994	Environmental Protection Agency - Region 9	Science Applications International Corp	(Privileged - FOIA ex 4) Initial WAF for enforcement support activities, w/revisions 1-45, SOWs, contract mods 56, 61, 74, TDMs, CRDs, TLs & marginalia, (supporting documents only) (Privileged document target only)	2074201
7/13/1994	Environmental Protection Agency - Region 9	Science Applications International Corp	(Privileged - FOIA ex 4) Initial WAF for enforcement support activities, w/revisions 1-45, SOWs, contract mods 56, 61, 74, TDMs, CRDs, TLs, marginalia & attchs, w/o supporting documents (Privileged document target only)	2074200
9/6/1994	Environmental Protection Agency - Region 9	Science Applications International Corp	(Privileged - FOIA ex 4) Initial WAF for PRP, title searches & enforcement support activities, w/revisions 1-19, SOWs, technical direction memos (TDMs), TLs & marginalia (supporting documents only) (Privileged document target only)	2074199
9/6/1994	Environmental Protection Agency - Region 9	Science Applications International Corp	Initial WAF for PRP, title searches & enforcement support activities, w/revisions 1-19, SOWs, technical direction memos (TDMs), TLs, marginalia & attchs, w/o supporting documents	2025381
7/1/1995	Diana Henrioulle-Henry / CA Regional Water Quality Control Board - Lahontan Region Bruce Warden / CA Regional Water Quality Control Board - Lahontan Region Catherine Schoen / CA Regional Water Quality Control Board - Lahontan Region	-	Draft Leviathan Mine workplan	2024066
7/14/1995	CA Regional Water Quality Control Board - Lahontan Region	-	Approval of 5-year workplan, w/attch (CRWQCB-LR resolution #6-95-95)	2037722
11/13/1995	-	-	Excerpt: Sampling site list re data summary sheets & 1995 water sampling data	2024025
1/1/1996	CA Regional Water Quality Control Board - Lahontan Region	-	Pond overflow sampling	2037723
1/1/1997	-	David Shannon / NONE	Site contact & repository information	2024052
7/20/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/97), w/TLs (Privileged document target only)	2073255
8/25/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (7/97), w/TLs (Privileged document target only)	2073256
9/19/1997	-	-	Excerpt: Anaconda Copper Mining Co & Atlantic Richfield Co business history	2024062
9/20/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (8/97), w/TLs (Privileged document target only)	2073257
9/24/1997	Dan Suter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Action memo: Request for approval of removal action	88114730
9/25/1997	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA exs 5 & 7) TDD: Provide technical assistance to OSC for funded removal action, w/amendments A-F, acceptance rpts & AOC (Privileged document target only)	2075284
9/25/1997	Ranjit Gill / CA Regional Water Quality Control Board - Lahontan Region	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Supports EPA's proposed emergency response activities re acid mine drainage (AMD)	2023989
9/25/1997	Ranjit Gill / CA Regional Water Quality Control Board - Lahontan Region	Daniel Suter / Environmental Protection Agency - Region 9	Ltr: Supports EPA's proposed emergency response activities re acid mine drainage (AMD)	2024053
9/29/1997	John Jaros / Environmental Protection Agency - Region 9	Richard Knowles / Atlantic Richfield Co	Mail Receipt: Certified mail P274 217 263	2024076
9/29/1997	John Jaros / Environmental Protection Agency - Region 9	Atlantic Richfield Co	Mail Receipt: Certified mail P274 218 030	2024075
9/30/1997	Daniel Suter / Environmental Protection Agency - Region 9	Dennis Gebhardt / Washoe Tribe of Nevada & California	Ltr: Notification of natural resource trustees, time critical removal action, w/addressee list (concurrence copy)	2024054
10/14/1997	C E T Environmental Services, Inc	-	Drawing: Acid mine drainage neutralization process flow diagram	2040106
10/15/1997	Inside EPA's Superfund Report	-	Article: Site in National Forest set for removal, w/marginalia	2024055
10/20/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (9/97), w/TL (Privileged document target only)	2073258
10/22/1997	Brian Wallace / Washoe Tribe of Nevada & California	Daniel Suter / Environmental Protection Agency - Region 9	Memo: Has questions re removal action at site	2027969
11/1/1997	Environmental Protection Agency - Region 9	-	Public notice: Availability of administrative record for removal action at site	88114733
11/5/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Corporate & limited partnership search, Cal Pine & related entities, w/marginalia (Privileged document target only)	2074900
11/5/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Strategic questions re response approach, RI/FS, PRPs, & NRDA claim (Privileged document target only)	2074898
11/12/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) "United front" approach re site cleanup & NRDA (Privileged document target only)	2074899
11/14/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Scott Bartel (Privileged document target only)	2074906
11/20/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/97), w/TL (Privileged document target only)	2073259
11/26/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Siskon Corp , Siskon Mining Corp, & Siskon Gold Corp (Privileged document target only)	2074904
11/28/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Cherokee Dev Corp (Privileged document target only)	2074903
11/28/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Leviathan Minerals, Leviathan Mining Assoc, & Leviathan Metals (Privileged document target only)	2074901
11/28/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Tim Callaway (Privileged document target only)	2074905
12/3/1997	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/97), w/marginalia (Privileged document target only)	2074174
12/3/1997	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 7) Corporation & limited partnership search, Texas Gulf Sulphur & Gulf Sulphur (Privileged document target only)	2074902
12/4/1997	Environmental Protection Agency - Region 9	-	List of US EPA guidance documents consulted during development & selection of response action for site	88114732
12/9/1997	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA exs 5 & 7) TDD: Evaluate acid mine drainage treatment technologies & general technical support activities, w/amendments A-E, acceptance rpts & AOC (Privileged document target only)	2066399
12/12/1997	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA exs 5 & 7) TDD: Prepare Hazard Ranking System (HRS) records & site assessment non-removal activities, w/amendments A-C, acceptance rpts, AOC & attch (Privileged document target only)	2066400
12/20/1997	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/97), w/TL (Privileged document target only)	2073260
1/5/1998	Brian Wallace / Washoe Tribe of Nevada & California Wayne Nordwall / US Dept of the Interior - Bureau of Indian Affairs US Forest Service	US Dept of the Interior	(Privileged, FOIA ex 5) Site history, hazardous substance releases, liability, potentially affected natural resources (Privileged document target only)	2066337
1/6/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/97) (Privileged document target only)	2074175
1/7/1998	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 5) Handwritten Notes: Meeting notes 9/8/97-1/21/98, remediation methods & PRP enforcement (Privileged document target only)	2074198
1/7/1998	US Dept of the Interior	-	(Privileged - FOIA ex 5) Mtg Agenda: Enforcement meeting, w/email TL to J Krause fr C McKinley 1/6/98 (Privileged document target only)	2074196
1/20/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (12/97), w/TL (Privileged document target only)	2073261
2/1/1998	Environmental Protection Agency - Region 9	-	Fact Sheet: EPA to continue work at site (draft)	2040107
2/2/1998	John Martin / Beavers & Young	Shelley Hall / US Dept of the Interior - Div of Conservation & Wildlife Suzanne Schaeffer / US Dept of the Interior - Office of the Solicitor Janet Wong / US Dept of the Interior - Office of the Solicitor	(Privileged - FOIA exs 5 & 7) Ltr: Washoe Tribe requests US Depts of Interior & Justice legal representation re claims (Privileged document target only)	2074897
2/5/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (12/97), w/marginalia (Privileged document target only)	2074176
2/6/1998	John Martin / Beavers & Young	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA exs 5 & 7) Memo: Phone call 2/11/98 re 3/4/98 mtg preparation, ARCO & CRWQCB-LR (Privileged document target only)	2074895
2/10/1998	Michael Smith / US Dept of the Interior - Bureau of Indian Affairs	-	(Privileged, FOIA exs 5 & 7) Ltr: Meeting notes of Leviathan Mine Council (11/13/97) & meeting agenda (2/19/98) re Leviathan Mine natural resource damage assessment, w/encl (Privileged document target only)	2066382
2/10/1998	Michael Smith / US Dept of the Interior - Bureau of Indian Affairs	Interested Party / NONE	(Privileged, FOIA exs 5 & 7) Ltr: Meeting notes of Leviathan Mine Council (11/13/97) & meeting agenda (2/19/98) re Leviathan Mine natural resource damage assessment, w/o encl (Privileged document target only)	2066390
2/20/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (1/98), w/TLs (Privileged document target only)	2073262
2/27/1998	Katherine Verburg / US Dept of the Interior - Office of the Solicitor	Joel Gross / US Dept of Justice - Environmental Enforcement Section	(Privileged, FOIA exs 5 & 7) Ltr: Request for Department of Justice to represent Department of Interior in investigating & pursuing natural resources damage assessment claim re Leviathan Mine, w/o attch (Privileged document target only)	2066391
2/27/1998	Katherine Verburg / US Dept of the Interior - Office of the Solicitor	Joel Gross / US Dept of Justice - Environmental Enforcement Section	(Privileged, FOIA exs 5 & 7) Ltr: Requests US Dept of Justice representation re Washoe Tribe natural resources damage assessment claim, w/encl (Privileged document target only)	2066383
3/4/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (1/98), w/marginalia (Privileged document target only)	2074177
3/25/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (2/98), w/TLs (Privileged document target only)	2073263
3/31/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (2/98) (Privileged document target only)	2074178
3/31/1998	James Smitherman / NV Dept of Conservation & Natural Resources - Div of Environmental Protection	Brian Wallace / Washoe Tribe of Nevada & California	Ltr: Discusses & transmits water quality monitoring lab results for Bryant Creek, w/attchs	2037724
4/3/1998	John Martin / Beavers & Young	Chuck McKinley / US Dept of the Interior Dan Suter / Environmental Protection Agency - Region 9	Ltr: Comments on effluent requirement & sludge standards in Order #98-07	2040108
4/17/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/98), w/TLs (Privileged document target only)	2073264
4/29/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/98) (Privileged document target only)	2074181
5/19/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (4/98), w/TLs (Privileged document target only)	2073265
5/20/1998	KEECO Environmental Reclamation, Inc	ARCO Environmental Remediation, L L C J M Beck & Assoc	Proposal - pond water remediation project, demonstration & complete treatment	2040109
6/3/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (4/98), w/marginalia (Privileged document target only)	2074182
6/3/1998	Mary Marks / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Transmits comments on ARCO workplan, w/marginalia & attch	2037725
6/5/1998	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments & questions re draft workplan	2040110
6/9/1998	Jim Kubalik / ARCO Environmental Remediation, L L C	Environmental Protection Agency - Region 9	Site health & safety plan	2040111
6/15/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (5/98), w/TLs (Privileged document target only)	2073266
7/2/1998	KEECO	James Beck / J M Beck & Assoc Tony Schwarz / ARCO Environmental Remediation, L L C	Treatability study for pond waters	2040112
7/7/1998	US Geological Survey	-	Water-quality reconnaissance assessment of water & stream bottom sediment for streams in mine vicinity & adjacent areas, w/TL to C Yeatman & R Greenbaum fr J Nowlin	2037726
7/8/1998	-	-	Sign-in sheet for site council meeting	2040113
7/16/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/98), w/TLs (Privileged document target only)	2073267
7/20/1998	Larry Thompson / US Dept of the Interior - Fish & Wildlife Service	Carol Yeatman / Washoe Tribe of Nevada & California	Memo: Transmits comments re draft 1998 workplan, w/attch & TL to K Mayer fr C Yeatman 7/21/98	2040114
7/30/1998	US Dept of the Interior - Bureau of Indian Affairs Washoe Tribe of Nevada & California US Forest Service	-	(Privileged, FOIA exs 5 & 7) Preassessment screen determination, Leviathan Mine, for natural resource damage assessment, w/signature page, 8/11/98, w/o exhibits (Privileged document target only)	2066387
8/5/1998	Stafford Lehr / CA Dept of Fish & Game	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: ARCO workplan review	2037727
8/12/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/98) (Privileged document target only)	2074183
8/17/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (7/98), w/TLs (Privileged document target only)	2073268
8/31/1998	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA exs 5 & 7) TDD: Prepare Hazard Ranking System (HRS) records & site assessment non-removal activities, w/amendment A, acceptance rpts & AOC (Privileged document target only)	2075281
9/2/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (7/98) (Privileged document target only)	2074184
9/3/1998	Anthony Schwarz / ARCO Environmental Remediation, L L C	-	Memo: Site status rpt #5 (8/98)	2040115
9/17/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (8/98), w/TLs (Privileged document target only)	2073269
9/17/1998	-	-	Meeting agenda, w/attch & marginalia	2040116
9/24/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (8/98), w/marginalia (Privileged document target only)	2074185
10/20/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (9/98), w/TLs (Privileged document target only)	2073270
10/26/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (9/98), w/marginalia (Privileged document target only)	2074186
10/29/1998	Kim Muratore / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt for 9/28 - 9/30/98 & for 10/27/98 (Privileged document target only)	2066352
11/18/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/98), w/TLs (Privileged document target only)	2073271
11/19/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/98) (Privileged document target only)	2074187
12/9/1998	Washoe Tribe of Nevada & California	-	Interview methodology, videotape evidence authentication statement, & sample interview	2024061
12/11/1998	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Mtg Agenda (draft): 12/11/98 mtg outline (Privileged document target only)	2074894
12/17/1998	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/98), w/TLs (Privileged document target only)	2073272
12/23/1998	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/98), w/marginalia (Privileged document target only)	2074188
12/23/1998	Kim Muratore / Environmental Protection Agency - Region 9	Arthur Brown, Resident / City of Oakdale	(Privileged, FOIA ex 6) Ltr: Requests information re Artie Brown, former Alpine Co fish & game warden (Privileged document target only)	2066341
12/23/1998	Kim Muratore / Environmental Protection Agency - Region 9	Arthur Brown, Resident / City of Eureka	(Privileged, FOIA ex 6) Ltr: Requests information re Artie Brown, former Alpine Co fish & game warden (Privileged document target only)	2066342
1/14/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (12/98), w/TLs (Privileged document target only)	2073273
1/22/1999	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (12/98), w/marginalia (Privileged document target only)	2074189
1/26/1999	Washoe Tribe of Nevada & California	Leviathan Mine Council	(Privileged - FOIA ex 7) Mtg Agenda: Leviathan Mine Council meeting on 2/4 & 2/5/99 (Privileged document target only)	2074219
1/27/1999	Peter Husby / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9 Ned Black / Environmental Protection Agency - Region 9	Email: Site hydrolab visit 1/22/99, damaged equipment, water quality data, w/attch	2024042
2/4/1999	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt (12/28 - 12/31/98) & follow-up activities (Privileged document target only)	2066339
2/5/1999	Leviathan Mine Council	-	(Privileged - FOIA ex 7) Sign-in sheets for Leviathan Mine Council meeting, 2/4 & 2/5/99 (Privileged document target only)	2074220
2/10/1999	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Transmits answers to questions in 1/26/99 email, w/attch (MAYERANS.DOC)	2040117
2/19/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (1/99), w/TLs (Privileged document target only)	2073274
2/24/1999	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (1/99) (Privileged document target only)	2074190
3/1/1999	Joshua Wirtschafter / Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Memo: Position of state on agreement concerning bi-phasic treatment (draft) (Privileged document target only)	2074222
3/2/1999	Keith Takata / Environmental Protection Agency - Region 9	Paul Blais / CA Environmental Protection Agency - Dept of Toxic Substances Control	Ltr: Would like to receive a response within 2 weeks re any concerns re proposed listing on NPL	2027971
3/9/1999	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 5) Administrative agreement on removal action, docket #99-XX (draft), w/TL to J Wirtschafter & S Russell (Privileged document target only)	2074224
3/9/1999	Paul Blais / CA Environmental Protection Agency - Dept of Toxic Substances Control	Keith Takata / Environmental Protection Agency - Region 9	Ltr: DTSC is not involved with site or listing decision (responds to ltr dated 3/2/1999)	2027972
3/10/1999	Sara Russell / CA Dept of Justice - Office of the Attorney General	Joshua Wirtschafter / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Memo: Comments on draft administrative agreement on removal action (Privileged document target only)	2074223
3/23/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (2/99), w/TLs (Privileged document target only)	2073275
3/30/1999	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Email: Discusses meeting with CRWQCB-LR on 3/24/99 re structure & terms of aggreement to treat evaporation pond water in 1999 (Privileged document target only)	2074228
4/13/1999	Brian Wallace / Washoe Tribe of Nevada & California	Felicia Marcus / Environmental Protection Agency - Region 9	Ltr: Appreciates efforts that have been directed toward analysis of site, & commitment to working with Washoe Tribe on remediation & restoration of site	2027973
4/21/1999	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt for 4/8 & 4/9/99 & related activities (Privileged document target only)	2066353
4/22/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/99), w/TLs (Privileged document target only)	2073276
4/26/1999	Atlantic Richfield Co	Environmental Protection Agency - Region 9	Proposed supplemental projects (PSPs), program to gather & assess information to develop goals & objectives, w/attchs	2024013
5/13/1999	Leviathan Mine Technical Group	-	Mtg Agenda: Leviathan Mine Technical Workgroup meeting on 5/14/99, w/TLs	2040137
5/14/1999	Leviathan Mine Technical Group	-	Sign-in sheets for Leviathan Mine Technical Workgroup meeting on 5/14/99	2040138
5/19/1999	Laura Yoshii / Environmental Protection Agency - Region 9	Winston Hickox / CA Environmental Protection Agency - Office of Agency Secretary	Ltr: Reiterates request for State's position on proposal to list site on NPL	2027974
5/21/1999	Jeff DeLong / Reno Gazette-Journal	-	Newsclip: Leviathan Mine may be next Superfund site	2023992
5/24/1999	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/29/99-5/2/99), w/marginalia (Privileged document target only)	2074179
5/25/1999	-	-	(Privileged, FOIA ex 7) CDB Infotek on-line corporate/financial search results for selected mining & mineral companies, (5/24 & 5/25/99) (Privileged document target only)	2066354
5/25/1999	Reno Gazette-Journal	-	Newsclip: Clean Leviathan Mine with or without California cooperation	2023993
5/26/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (4/99), w/TLs (Privileged document target only)	2073277
6/18/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (5/99), w/TLs (Privileged document target only)	2073278
7/1/1999	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA ex 5) TDD: Prepare Hazard Ranking System (HRS) records & site assessment non-removal activities, w/amendment A, acceptance rpts & AOC (Privileged document target only)	2075282
7/8/1999	Karen Johnson / Ecology & Environment, Inc	Carolyn Douglas / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5 & 7) Hazard ranking system (HRS) summary scoresheets, w/surface water overland/flood migration component scoresheet (Privileged document target only)	2066398
7/8/1999	Karen Johnson / Ecology & Environment, Inc	-	(Privileged, FOIA exs 5 & 7) Hazard ranking system summary scoresheet for Leviathan Mine (Privileged document target only)	2066388
7/8/1999	Karen Johnson / Ecology & Environment, Inc	-	(Privileged, FOIA exs 5 & 7) HRS documentation record for Leviathan Mine, w/review cover sheet (Privileged document target only)	2066389
7/8/1999	Karen Johnson / Ecology & Environment, Inc	Carolyn Douglas / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5 & 7) Reference list only from HRS (hazardous ranking system) documentation record, w/notes (Privileged document target only)	2066397
7/8/1999	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Michael Hagood / ARCO Environmental Remediation, L L C	Ltr: Comments re demobilization fr site	2037728
7/9/1999	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA exs 5 & 7) TDD: Provide technical support to OSC & TM for funded removal action, w/amendment A, acceptance rpts & AOC (Privileged document target only)	2075285
7/15/1999	Kim Muratore / Environmental Protection Agency - Region 9	Susan Corbaley / Science Applications International Corp	(Privileged, FOIA exs 5 & 7) Technical Memo: Activates 2 work assignment tasks - title search & expert opinion (Privileged document target only)	2066392
7/15/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Michael Hagood / ARCO Environmental Remediation, L L C	Ltr: Approves of technical memo #2	2037730
7/15/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Allen Biaggi / NV Dept of Conservation & Natural Resources - Div of Environmental Protection	Ltr: Notification of potential off-site shipment of waste to NV	2037729
7/16/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/99), w/TLs & marginalia (Privileged document target only)	2073279
7/16/1999	David McCarthy / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Compact disc of digital aerial images & topography files	2037731
7/20/1999	Michael Hagood / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits technical memo #2, demobilization & final disposition of sludge & debris, 1998 removal action, w/attch	2024047
7/28/1999	Michael Hagood / ARCO Environmental Remediation, L L C	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Responds to comments re demobilization activities, w/attch	2037732
7/29/1999	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Access for Leviathan (Privileged document target only)	2066368
7/29/1999	-	-	(Privileged, FOIA ex 6) Parcel map & CA real property searches by parcel number, data available through 2/4/99 for current parcel ownership (6/24/99 & 7/29/99) (Privileged document target only)	2066356
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Robert Merrill, Resident / City of Woodside	(Privileged, FOIA ex 6) Ltr: Request for access to private property for survey work, w/signed access agreement (Privileged document target only)	2066364
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Patrick Parker, Resident / City of Orofino, ID Virginia Parker, Resident / City of Orofino, ID	(Privileged, FOIA ex 6) Ltr: Request for access to private property for survey work, w/signed access agreement (Privileged document target only)	2066365
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Eva Wasson, Resident / City of Cupertino Ernest Wasson, Resident / City of Cupertino	(Privileged, FOIA ex 6) Ltr: Request to access private property for site survey work, w/signed access agreement & note (Privileged document target only)	2066363
8/17/1999	John Kemmerer / Environmental Protection Agency - Region 9	Maurice Curtis, Resident / City of Santa Rosa Betty Curtis, Resident / City of Santa Rosa	(Privileged, FOIA ex 6) Ltr: Request to access private property for site survey work, w/signed access agreement (Privileged document target only)	2066362
8/19/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (7/99), w/TLs (Privileged document target only)	2073280
8/25/1999	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/28/99-7/31/99) (Privileged document target only)	2074180
8/29/1999	Sandra Richardson / Science Applications International Corp	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Update on Leviathan title search (Privileged document target only)	2066369
8/31/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Update on Leviathan Mine activities (Privileged document target only)	2066370
9/3/1999	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Update on Leviathan Mine activities, w/history (Privileged document target only)	2066371
9/20/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (8/99), w/TLs (Privileged document target only)	2074161
9/24/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 8 (8/1/99-9/3/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074202
9/28/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Revised financial rpts for Periods 7-8 (7/10/99-9/3/99), w/TL & marginalia (Privileged document target only)	2074203
10/18/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 9 (9/4/99-10/1/99, Extended Base Period), w/TL & marginalia (Privileged document target only)	2074204
10/18/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 9 (9/4/99-10/1/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074205
10/20/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (9/99), w/TLs (Privileged document target only)	2074162
11/1/1999	Environmental Protection Agency - Region 9	-	Fact Sheet: EPA proposes Leviathan Mine for Superfund list	2024036
11/12/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 10 (10/2/99-10/29/99, Extended Base Period), w/TL & marginalia (Privileged document target only)	2074206
11/12/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 10 (10/2/99-10/29/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074207
11/12/1999	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA ex 5) TDD: Provide on-call response call out capability, w/amendments A-E, acceptance rpts & AOC (Privileged document target only)	2075286
11/20/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/99), w/TLs (Privileged document target only)	2074163
12/1/1999	S R K Consulting	ARCO Environmental Remediation, L L C	1998-1999 data summary rpt (compact disc only)	2045497
12/1/1999	S R K Consulting	ARCO Environmental Remediation, L L C	1998-1999 data summary rpt, w/o compact disc	2027970
12/2/1999	CA Regional Water Quality Control Board - Lahontan Region	-	Leviathan/Bryant Creek watershed provisional water quality data, monitoring results 9/97-9/99, w/TL to M Berry fr P Fischer	2024017
12/9/1999	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt for 12/1 - 12/3/99 & related follow up, w/hand written changes & attchs (oversize map only) (Privileged document target only)	2066361
12/9/1999	Kim Muratore / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt for 12/1 - 12/3/99 & related follow up, w/hand written changes & attchs, w/o oversize map (Privileged document target only)	2066360
12/9/1999	-	-	(Privileged, FOIA exs 5 & 6) Memo: Leviathan trip rpt for 12/1 - 12/3/99 & related follow up (oversize map only) (Privileged document target only)	2066344
12/9/1999	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5 & 6) Memo: Leviathan trip rpt for 12/1 - 12/3/99 & related follow up, w/attchs (w/o oversize map) (Privileged document target only)	2066343
12/13/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 11 (10/30/99-11/26/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074208
12/14/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 11 (10/30/99-11/26/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074209
12/15/1999	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Contractors as PRPs - Isabell Construction's work at Leviathan Mine (Privileged document target only)	2066358
12/15/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5,6, & 7) Draft title search rpt, w/attchs 1-3 & TL to K Muratore fr S Richardson, w/o oversize maps (Privileged document target only)	2066345
12/15/1999	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5,6, & 7) Draft title search rpt, w/attchs 1-3 (oversize maps only) (Privileged document target only)	2066386
12/20/1999	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/99), w/TLs (Privileged document target only)	2074164
12/22/1999	Kim Muratore / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Leviathan in Nevada - what the Hunts wanted to talk about, w/history (Privileged document target only)	2066372
12/25/1999	Christy Chalmers / Record-Courier, The	-	Newsclip: EPA researches way to clean up Leviathan	2024004
12/27/1999	Larry Thompson / US Dept of the Interior - Fish & Wildlife Service Dan Welsh / US Dept of the Interior - Fish & Wildlife Service	ARCO Environmental Remediation, L L C Leviathan Mine Council	Assessments of injuries to aquatic natural resources near Leviathan Mine, phase 1 data rpt - concentrations of metals & trace elements in aquatic insects & fish	2037733
12/27/1999	San Jose Mercury News Associated Press	-	Newsclip: EPA studies mine site cleanup, officials debate extent of pollution in Sierra Nevada creeks, rivers	2024003
12/29/1999	Cay Goude / US Dept of the Interior - Fish & Wildlife Service	Eugene Mancini / Atlantic Richfield Co	TL: Assessments of injuries to aquatic natural resources near site, phase 1 data rpt - concentrations of metals & trace elements in aquatic insects & fish	2027975
1/1/2000	Michael Lico / US Geological Survey Karen Thomas / US Geological Survey	-	Data on stream-water & bed-sediment quality in vicinity of Leviathan Mine, Alpine County, CA, & Douglas County, NV, 9/98	2037735
1/4/2000	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Leviathan in Nevada - what the Hunts wanted to talk about, w/history (Privileged document target only)	2066373
1/4/2000	Kim Muratore / Environmental Protection Agency - Region 9	Sandra Richardson / Science Applications International Corp	(Privileged, FOIA exs 5 & 7) Ltr: Transmits comments on draft Leviathan title search & on ground survey, w/comments (Privileged document target only)	2066393
1/7/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 12 (12/1/99-12/24/99, Option Period 1), w/TL & marginalia (Privileged document target only)	2074210
1/7/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 12 (12/1/99-12/24/99, Option Period 2), w/TL & marginalia (Privileged document target only)	2074211
1/18/2000	Michael Hagood / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits 1998-99 data summary rpt & discusses 1998 workplan, 1999 workplan, & status of data collection activities, w/o rpt	2037736
1/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (12/99), w/TLs (Privileged document target only)	2074165
1/24/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Peter Husby / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Schedule for Leviathan well sampling & possible drinking water contamination on Hunt property (Privileged document target only)	2066374
1/28/2000	Dan Welsh / US Dept of the Interior - Fish & Wildlife Service Larry Thompson / US Dept of the Interior - Fish & Wildlife Service	Leviathan Mine Council	Assessments of injuries to aquatic natural resources near Leviathan Mine, phase 2 rpt - toxicity & chemistry of receiving streams during evaporation pond overflows at mine in 4/99	2037734
1/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA ex 6) Final title search & survey for site (oversize drawing only) (Privileged document target only)	2066384
1/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA ex 6) Final title search & survey for site, w/attchs 1-4 (oversize part only) (Privileged document target only)	2066378
1/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA ex 6) Final title search & survey for site, w/attchs 1-4 (w/o oversize parts) (Privileged document target only)	2066357
2/1/2000	Sandra Richardson / Science Applications International Corp	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5,6, & 7) Ltr: Transmits 3 copies of final title search & survey rpt, w/o encls (Privileged document target only)	2066395
2/7/2000	Sandra Richardson / Science Applications International Corp	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5,6, & 7) Ltr: Transmits 3 corrected pages 9 & 10 & 3 copies of revised Figure 2 for title search & survey rpt, w/o encls (Privileged document target only)	2066396
2/11/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 13 (12/25/99-1/21/00, Option Period 1), w/TL & marginalia (Privileged document target only)	2074212
2/11/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 13 (12/25/99-1/21/00, Option Period 2), w/TL & marginalia (Privileged document target only)	2074213
2/11/2000	Cay Goude / US Dept of the Interior - Fish & Wildlife Service	Timothy Seward / Washoe Tribe of Nevada & California	Ltr: Transmits final copy of assessments of injuries to aquatic natural resources near site, phase 2 rpt - toxicity & chemistry of receiving streams during evaporation pond overflows at site in 4/1999, w/o encl	2027976
2/14/2000	Stephen Luftig / Environmental Protection Agency Barry Breen / Environmental Protection Agency	Environmental Protection Agency - All Regions	Memo: Use of non-time-critical removal authority in Superfund response actions	2039315
2/15/2000	Amy Anderson / KEECO	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits information re Silica Micro Encapsulation (SME) technology to treat metal contaminated water & soils, w/attchs & TL	2024019
2/16/2000	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan trip rpt for 2/13 & 2/14/2000, w/2 interviews (Privileged document target only)	2066346
2/17/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	John Kemmerer / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5 & 7) Memo: Agreement to modify 1998 consent order for removal action, w/o consent order & attch #1 (concurrence copy) - version approved before changes (Privileged document target only)	2066349
2/17/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	John Kemmerer / Environmental Protection Agency - Region 9	(Privileged, FOIA exs 5 & 7) Memo: Agreement to modify 1998 consent order for removal action, w/o consent order, w/attch #1 (concurrence copy) (Privileged document target only)	2066348
2/18/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (1/00), w/TLs (Privileged document target only)	2074166
2/18/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged, FOIA ex 4) Monthly work assignment rpts, 11/30/99-2/18/2000 (Privileged document target only)	2066366
3/1/2000	David Griffith / Alpine Enterprise (Newspaper)	-	Newsclip: Was Leviathan Superfund listing unnecessary? (2nd in series)	2024016
3/3/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 1 (1/22/99-2/18/00, Option Period 2), w/TL & marginalia (Privileged document target only)	2074214
3/3/2000	Neal Brody / Atlantic Richfield Co	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Ltr: 1998 Administrative Order on Consent modification, interest bearing account established, w/encl	2024015
3/14/2000	Robert Milz / Carson Water Subconservancy District	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Carson River summit mtg & information exchange 4/12/00	2024039
3/16/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged - FOIA exs 5 & 7) Memo: Lahontan Regional Water Quality Control Board (LWRQCB) agreement mechanisms concerning evaporation ponds acid mine drainage (AMD) (Privileged document target only)	2074195
3/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (2/00), w/TLs (Privileged document target only)	2074167
3/20/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Dan Welsh / US Dept of the Interior - Fish & Wildlife Service Chip Demarest / US Dept of the Interior John Krause / US Dept of the Interior - Bureau of Indian Affairs	(Privileged, FOIA ex 5) Email: Leviathan Mine site visit rpt (Privileged document target only)	2066375
3/21/2000	Environmental Protection Agency - Region 9	Lockheed Martin Environmental Services - Environmental Services Assistance Team, Region 9	(Privileged - FOIA ex 5) TDF for analyzing up to 10 water samples, Case R00S27, for full list metals, Total Dissolved Solids, sulfide, NO2+NO3 & anions & preparing analytical rpts & data pkgs (Privileged document target only)	2074907
3/23/2000	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Conditions re site removal action, w/attchs	2024001
3/28/2000	Environmental Protection Agency - Region 9	Ecology & Environment, Inc	(Privileged, FOIA ex 5) TDD: Provide technical assistance for CERCLA emergency response activities, w/amendment A, acceptance rpts & AOC (Privileged document target only)	2075283
3/30/2000	Alan Hill / Hill Enterprises	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Treatability study proposal, HPT alternative technology re acid mine drainage (AMD)	2023999
3/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 2 (2/19/00-3/17/00, Option Period 1), w/TL & marginalia (Privileged document target only)	2074215
3/31/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 2 (2/19/00-3/17/00, Option Period 2), w/TL & marginalia (Privileged document target only)	2074216
4/4/2000	Environmental Protection Agency - Region 9	Lockheed Martin Environmental Services - Environmental Services Assistance Team, Region 9	(Privileged - FOIA ex 5) TDF for analyzing up to 10 water samples, Case R00S27, for full list metals, Total Dissolved Solids, sulfide, NO2+NO3 & anions & preparing analytical rpts & data pkgs (Privileged document target only)	2074908
4/4/2000	Alpine County - Board of Supervisors	-	Mtg Agenda: Alpine County Board of Supervisors, w/marginalia	2024060
4/6/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Kathi Moore / Environmental Protection Agency - Region 9 John Kemmerer / Environmental Protection Agency - Region 9 Keith Takata / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5 & 7) Email: Rpt on Leviathan pond storage, w/newsclip (Privileged document target only)	2066394
4/7/2000	John Kemmerer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Weekly activities for weeks ending 4/7/2000 & 6/23/2000, w/history (Privileged document target only)	2066367
4/8/2000	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/00), w/TL (Privileged document target only)	2074191
4/12/2000	Carson Water Subconservancy District	-	Mtg Agenda: Carson Water Subconservancy District information exchange day, 4/12/00	2024040
4/14/2000	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Kathi Moore / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits proposed statement of work re response actions, w/encl & TL to K Mayer fr C Stetler	2024006
4/14/2000	Sandra Stash / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits draft statement of work (SOW) for proposed EE/CA, w/attach & TL to K Mayer fr C Kamper	2027977
4/14/2000	Darrel Cruz / Washoe Tribe of Nevada & California	-	Memo: Toxic sludge discovery 4/10/00 during vegetation study, w/TL to K Mayer 4/17/00	2024002
4/14/2000	James Thomas / Desert Research Institute	CA Regional Water Quality Control Board - Lahontan Region	Memo: Water investigation proposal form, site acid rock drainage reduction, w/attchs	2024049
4/18/2000	Toni Leffler / Carson Water Subconservancy District	Kay Bennett / Carson Water Subconservancy District	Memo: Discusses & transmits draft information summit mtg notes 4/12/00, w/attch	2023996
4/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (3/00), w/TLs (Privileged document target only)	2074168
4/21/2000	John Nowlin / US Geological Survey	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Bryant Creek surface water data collection program funding, w/TL fr K Garcia	2024000
4/22/2000	John Glionna / Los Angeles Times (Newspaper)	-	Newsclip: Poisoned river runs through it	2040118
4/24/2000	Neal Brody / Atlantic Richfield Co	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Ltr: Response to supplemental 104(e) request for information, w/encls (Privileged document target only)	2066355
4/28/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 3 (3/18/00-3/30/00, Option Period 2), w/TL & marginalia (Privileged document target only)	2074217
5/8/2000	David Evans / Environmental Protection Agency - Washington, D C	John Doolittle / US House of Representatives - Office of John Doolittle	Ltr: Leviathan Mine placed on National Priorities List (NPL), transmits site description, w/o encl	2024008
5/8/2000	David Evans / Environmental Protection Agency - Washington, D C	Dianne Feinstein / US Senate	Ltr: Leviathan Mine placed on National Priorities List (NPL), transmits site description, w/o encl	2024009
5/8/2000	David Evans / Environmental Protection Agency - Washington, D C	Barbara Boxer / US Senate	Ltr: Leviathan Mine placed on National Priorities List (NPL), transmits site description, w/o encl	2024010
5/10/2000	Randy Deitz / Environmental Protection Agency - Washington, D C	Sunny Nelson / Environmental Protection Agency - Region 9	TL: Ltrs re Leviathan Mine placed on National Priorities List (NPL), site description	2024011
5/11/2000	Environmental Protection Agency - Region 9	-	Analysis rpt - Case R00S27, SDG 00077A, 9 water samples for metals, collected 3/17/00, w/TL to K Mayer fr B Bettencourt	2024043

5/16/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Leviathan Mine PRP search, w/handwritten notes & history (Privileged document target only)	2066376
5/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (4/00), w/TLs (Privileged document target only)	2074169
5/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (5/00), w/TLs & marginalia (Privileged document target only)	2074170
5/26/2000	Science Applications International Corp	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt for Period 4 (4/15/00-5/12/00, Option Period 2), w/TL & marginalia (Privileged document target only)	2074218
5/31/2000	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan Mine ownership & operational history, w/attchs (Privileged document target only)	2066350
5/31/2000	Kim Muratore / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Leviathan Mine PRP search rpt, w/appendix - list of PRP search related documents (Privileged document target only)	2066351
6/1/2000	David Griffith / Alpine Enterprise (Newspaper)	-	Newsclip: Leviathan Mine Superfund listing challenged, questions whether Federal intervention was more politically than scientifically motivated (suppl to v23 #3)	2024005
6/14/2000	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (5/00), w/TL & marginalia (Privileged document target only)	2074192
6/14/2000	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	-	Resolution #6-00-62 adopting mitigated negative declaration for pond water treatment at site, w/TL to All Interested Persons & Agencies fr S Harada 6/27/2000	2027980
6/15/2000	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Workplan for 2000 site monitoring (draft)	2027978
6/15/2000	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Workplan for site maintenance activities (draft)	2027979
6/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (6/00), w/TLs (Privileged document target only)	2074171
6/23/2000	Environmental Protection Agency - Region 9	Lockheed Martin Environmental Services - Environmental Services Assistance Team, Region 9	(Privileged - FOIA ex 5) TDF for analyzing water & sediment samples, Case R00S45, for full list metals (no Hg), Total Dissolved Solids, sulfate & full TAL metals plus molybdenum & preparing analytical rpts & data pkgs (Privileged document target only)	2074909
6/27/2000	Environmental Protection Agency - Region 9	-	Analysis rpt - Case R00S45, SDG 00175C, 00175D, sediment & water samples for metals in water, sulfate, total dissolved solids, & metals in sediment, collected 6/14/00-6/16/00, w/TLs	2024034
7/1/2000	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Press Release (draft): EPA & Lahontan Regional Water Quality Control Board agree on action to stem polluted runoff fr Leviathan Mine (Privileged document target only)	2074896
7/5/2000	Catherine McCracken / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Confirms invitation to speak at EPA's National Community Involvement Conference on 8/30/2000	2027981
7/19/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Action Memo: Request for approval of removal action, w/o enforcement confidential memo & 9/24/97 action memo	2037738
7/19/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Action Memo: Request for approval of removal action, w/o enforcement confidential memo & 9/24/97 action memo (concurrence page)	2037739
7/19/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Memo: Approves 2000 pond water treatment workplan & acknowledges forthcoming response to comments	2024046
7/19/2000	Keith Takata / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	TL: Removal action memo & administrative abatement action for removal action	2037737
7/21/2000	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Notice of intent to comply re EPA administrative abatement action	2023997
7/25/2000	Environmental Protection Agency - Region 9	Lockheed Martin Environmental Services - Environmental Services Assistance Team, Region 9	(Privileged - FOIA exs 5 & 7) TDF for reviewing & commenting on Monitoring Workplan Year 2000 (Privileged document target only)	2074910
8/1/2000	David Herbst / Univ of California - Sierra Nevada Aquatic Research Laboratory	US Forest Service	Bioassessment monitoring of acid mine drainage impacts in streams of Leviathan Mine watershed for spring & fall 1999	2037740
8/4/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Kim Muratore / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Email: Leviathan ponds have over 6.7 million gallons storage capacity on 8/4/2000 (Privileged document target only)	2066377
8/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (7/00), w/TLs & marginalia (Privileged document target only)	2074172
9/14/2000	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Discusses shutdown of biphasic treatment system	2037741
9/15/2000	Kevin Mayer / Environmental Protection Agency - Region 9	John Pantano / ARCO Environmental Remediation, L L C	Ltr: Transmits bioassessment monitoring of acid mine drainage impacts in streams of Leviathan Mine watershed for spring & fall 1999, w/o attch	2027982
9/20/2000	Ecology & Environment, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (8/00), w/TLs (Privileged document target only)	2074173
9/27/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Edward Bates / Environmental Protection Agency	Memo: Site tour, Leviathan Mine 9/12/00, E Fork Carson/Bryant Creek 9/13/00, technical discussion re remediation & treatment technologies	2024023
9/28/2000	David Milton / H P T Research, Inc	Daniel McMindes / US Army Corps of Engineers - Sacramento District	Ltr: Discusses & transmits H P T Research Acid Mine Drainage (AMD) remediation technology access agreement packet, w/attchs	2024064
10/5/2000	Gerald Rockwell / US Geological Survey - Water Resources Div	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Discusses & transmits field trip water sampling results 9/28/00, w/attch	2024007
10/5/2000	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Monthly progress rpt, 7/19/00-7/31/00, 9/1/00-9/30/00, pond water treatment, site monitoring, revegetation & site maintenance	2024050
10/19/2000	Daniel Ferriter / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits comments re proposed Statement of Work (SOW) revisions, w/marginalia & attch	2024020
10/26/2000	Neal Brody / Law & Economics Consulting Group	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses & transmits riparian conservation project proposal & related materials, w/attchs	2024021
10/31/2000	Timothy Seward / Washoe Tribe of Nevada & California	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Expresses concerns & requests clarification re statement of work (SOW) risk assessments, w/TL 11/14/00	2024012
11/6/2000	-	-	Mtg Notes: Sign-in sheet, mtg at USGS, Carnelian Bay	2024014
11/14/2000	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (10/00), w/TL (Privileged document target only)	2074193
11/16/2000	Environmental Protection Agency - Region 9	-	Analysis rpt - Case R00S45, SDG 00274A, 00274B, 00247C, 14 water samples for metals, sulfate & total dissolved solids, collected 10/23/00-10/31/00, w/TL to K Mayer fr B Bettencourt	2024029
11/21/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5 & 7) Memo: Comments on UAO for early response actions, RI/FS under sec 106(a) of CERCLA & requests signed approval of UAO, w/o attch 1 (concurrence copy) (Privileged document target only)	2066381
11/21/2000	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged, FOIA ex 5) Memo: Comments on UAO for early response actions, RI/FS under sec 106(a) of CERCLA & requests signed approval of UAO, w/attch 1 (concurrence copy) (Privileged document target only)	2066380
11/29/2000	Gerald Rockwell / US Geological Survey - Water Resources Div	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Field trip water sampling results & measurement procedure, w/attch	2023994
12/5/2000	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Request for time extension for submittal of written rpt re pre-certification inspection	2027983
12/5/2000	David Milton / H P T Research, Inc	Rob Tucker / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Requests final rpt on Leviathan biphasic treatment system, lab results, & financial data, 1999	2023990
12/7/2000	CA Water Resources Control Board	Daniel Ferriter / ARCO Environmental Remediation, L L C	Email: Technical mtg location, 12/12/00-12/13/00, requests information re Tunnel #3	2023991
12/12/2000	-	-	Sign-in sheet for technical meeting	2037742
12/14/2000	C E T Environmental Services, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 4) Monthly progress rpt (11/00), w/TL (Privileged document target only)	2074194
12/18/2000	Kevin Mayer / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Discusses objectives for technical meeting to be held, possibly, on 1/26/01 in Carson City, NV	2027984
1/1/2001	Carson Water Subconservancy District	-	Article: Site update (The Flow, v3, #4, p2)	2025274
1/1/2001	E R Mancini & Assoc	ARCO Environmental Remediation, L L C	Workplan for monitoring spring runoff	2029929
1/12/2001	Glenn Miller / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering Timothy Tsukamoto / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region Kevin Mayer / Environmental Protection Agency - Region 9 John Pantano / ARCO Environmental Remediation, L L C	Ltr: Transmits proposed changes to bioreactors as discussed at December meeting, w/attch	2029894
1/22/2001	Edward Bates / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Site FY2001 pilot water treatment tests, ERB & SAPS technology information & recommendation, w/attchs	2024045
1/26/2001	Environmental Protection Agency - Region 9	-	Mtg Agenda: Technical advisory mtg 1/26/01, Carson Community Ctr, w/attchs	2024022
1/31/2001	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Robert Dodds / CA Regional Water Quality Control Board - Lahontan Region	Email: Monthly water quality samples re total & dissolved chromium	2023995
2/2/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Joel Bauman / Tetra Tech E M, Inc	Email: Discusses & transmits mtg minutes & presentations fr technical advisory mtg 1/26/01, w/attchs	2024024
3/1/2001	Montgomery Watson, Inc	ARCO Environmental Remediation, L L C	Draft early response action workplan	2029897
3/6/2001	Environmental Protection Agency - Region 9	-	Mtg Notes: Spring 2001 early action technical meeting	2029898
3/19/2001	Kevin Mayer / Environmental Protection Agency - Region 9	-	Memo: Trip rpt, 3/5/01, with P Husby & N Black	2037743
3/29/2001	Brian Wallace / Washoe Tribe of Nevada & California	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Has concerns re substance of 3/6/2001 technical meeting	2029899
3/30/2001	Daniel Ferriter / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits draft early response action workplan, w/o attch	2029896
4/9/2001	Edward Bates / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Comments on draft early response action workplan	2029900
4/10/2001	David Reisman / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Comments on draft early response action workplan	2029901
4/17/2001	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on 3/01 draft early response action workplan	2029903
4/17/2001	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	David Milton / H P T Research, Inc	Ltr: Response to request to test treatment technology at site during 2001 operating season	2040119
4/17/2001	Edward Bates / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Comments on draft early response action workplan	2029906
4/17/2001	Fred Kirschner / A E S E, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Presents Washoe tribe's comments on draft early response action workplan	2029902
5/11/2001	Daniel Ferriter / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Discusses EPA's intention to not approve early action workplan & postponement of early actions for 2001 field season	2029909
5/11/2001	CA Regional Water Quality Control Board - Lahontan Region	-	Mtg Agenda: Resolution to request use of cleanup & abatement account funds for slope stability project	2029908
5/11/2001	CA Regional Water Quality Control Board - Lahontan Region	-	Mtg Notes: Resolution to request use of cleanup & abatement account funds for slope stability project, w/draft resolution	2029907
5/18/2001	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Memo: Technical review of site draft management plan dated 1/01 (draft) (Privileged document target only)	2074236
5/21/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Daniel McMindes / US Army Corps of Engineers - Sacramento District	Email: Conversation with David Griffith re site geology	2029911
5/21/2001	Jean Martin / ARCO Environmental Remediation, L L C	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Ltr: Asks for supporting documentation re request for payment of EPA costs (responds to ltrs dated 2/26/2001 & 5/7/2001)	2029910
5/22/2001	Steven Brooks / US Forest Service - Humboldt-Toiyabe National Forest	Daniel Ferriter / ARCO Environmental Remediation, L L C	Ltr: Acknowledges receipt of ltr dated 4/23/2001 describing Leviathan Road maintenance plans, & requests notification when maintenance has been completed	2029912
6/1/2001	Montgomery Watson, Inc	ARCO Environmental Remediation, L L C	Early response action workplan	2024018
6/4/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Sandra Stash / ARCO Environmental Remediation, L L C	Ltr: Modifications to riparian conservation project proposal & purchase agreement	2029913
6/5/2001	Kevin Mayer / Environmental Protection Agency - Region 9	John Pantano / ARCO Environmental Remediation, L L C	Ltr: Approves extension for submittal of revised early response action workplan, & agrees that procurement & mobilization activities should proceed	2029914
6/10/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (5/01), Administrative Order #2001-05 for early response actions & RI/FS	2027991
6/12/2001	Steven Brooks / US Forest Service - Humboldt-Toiyabe National Forest	-	Briefing paper for site tour	2040120
6/14/2001	David Taylor / Environmental Protection Agency - Region 9	Ned Black / Environmental Protection Agency - Region 9	Ltr: Comments on draft project workplan for 2000 site monitoring, draft project workplan for site maintenance activities, & draft project workplan for 2000 pond water treatment	2029920
6/14/2001	Joshua Wirtschafter / Environmental Protection Agency - Region 9	Jean Martin / ARCO Environmental Remediation, L L C	Ltr: Transmits supporting documentation for request for payment, w/o encl (responds to ltr dated 5/21/2001)	2029919
6/22/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits 3 paper copies & 1 electronic copy of early response action workplan, w/o attchs	2029921
7/3/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (6/01), Administrative Order #2001-05 for early response actions & RI/FS	2029922
7/5/2001	Environmental Protection Agency - Region 9	-	(Privileged, FOIA exs 5 & 7) Modification to administrative abatement action of 7/19/00, #2000-16(a), w/attchs (Privileged document target only)	2066379
7/5/2001	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Redacted - FOIA exs 5 & 7) TL: Modification to administrative abatement action of 7/19/00, #2000-16(a)	2070531
7/11/2001	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R01S45, SDG 01166C, 8 water samples analyzed for sulfate & total dissolved solids, collected 6/14/01	2039300
7/12/2001	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R01S45, SDG 01166C & 01166D, 16 water samples analyzed for metals, collected 6/14/01	2039298
7/13/2001	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R01S45, SDG 01166E, 7 sediment samples analyzed for metals, collected 6/14/01	2039299
7/19/2001	CA Water Resources Control Board	-	Mtg Agenda: Consideration of request fr RWQCB-L for funding fr water pollution cleanup & abatement account for continued geotechnical investigation at site for slope stabilization of delta slope	2029923
8/24/2001	N E L Laboratories	CA Regional Water Quality Control Board - Lahontan Region	Excerpt: Metals & dissolved metals sampling data 8/8/01-8/24/01	2024030
9/27/2001	Environmental Protection Agency - Region 9	-	Mtg Agenda: Technical advisory meeting	2029925
11/4/2001	Environmental Protection Agency - Region 9	Reno Gazette-Journal	Public Notice: Community meeting on 11/7/2001 for Washoe tribal members & owners of Pine Nut allotments to discuss site, w/proof of publication	2025271
11/6/2001	Environmental Protection Agency - Region 9	Nevada Appeal (Newspaper)	Public Notice: Community meeting on 11/7/2001 for Washoe tribal members & owners of Pine Nut allotments to discuss site, w/statement of publication	2025270
11/7/2001	Washoe Tribe of Nevada & California Environmental Protection Agency - Region 9	-	Mtg Notice: Community meeting for Washoe tribe	2029895
11/7/2001	Environmental Protection Agency - Region 9	Record-Courier, The	Public Notice: Community meeting on 11/7/2001 for Washoe tribal members & owners of Pine Nut allotments to discuss site	2025253
11/9/2001	John Pantano / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (10/01), Administrative Order #2001-05 for early response actions & RI/FS	2029924
11/21/2001	Kathi Moore / Environmental Protection Agency - Region 9	Sandra Stash / ARCO Environmental Remediation, L L C	Ltr: Request for payment of costs, w/itemized cost summary	2029926
12/10/2001	Steve Ferry / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (11/01), Administrative Order #2001-05 for early response actions & RI/FS	2029927
12/12/2001	Carson Water Subconservancy District	-	Public Notice: Meeting on 12/19/2001 re discussion & possible action re presentation by EPA on site environmental assessment	2029928
12/19/2001	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Proposes submittal dates for site management plan & phase 1 RI/FS workplan	2025251
1/7/2002	Steve Ferry / ARCO Environmental Remediation, L L C	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (12/01), Administrative Order #2001-05 for early response actions & RI/FS	2037758
1/31/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Proposes meeting on 2/27/2002 in Reno, NV to discuss completeness & data quality of site database	2025252
2/1/2002	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2001 oversight summary rpt	2029931
2/1/2002	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Technical review of draft site management plan	2037756
2/5/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Rob Greenbaum / Washoe Tribe of Nevada & California	Ltr: Transmits 2001 oversight summary rpt, & CD-ROM with all files fr site management plan submitted by ARCO, w/o attchs	2029930
2/11/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (1/02), Administrative Order #2001-05 for early response actions & RI/FS	2029932
2/21/2002	Brown & Caldwell	Atlantic Richfield Co	2001 early response action channel underdrain treatment completion rpt, v1 of 2 (rpt, figures, & tables)	2029934
2/21/2002	Brown & Caldwell	Atlantic Richfield Co	2001 early response action channel underdrain treatment completion rpt, v2 of 2 (appendices A-F)	2029935
2/21/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: 3 copies of 2001 early response action channel underdrain treatment completion rpt & 1 electronic version	2029933
3/1/2002	Laurie Scribe / CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Draft QAPP for surface water quality monitoring, w/o figures & apps C & D	2037759
3/8/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (2/02), Administrative Order #2001-05 for early response actions & RI/FS	2037760
3/26/2002	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Steve Ferry / ARCO Environmental Remediation, L L C	Ltr: Comments on draft site management plan	2037757
4/1/2002	Montgomery Watson Harza	Atlantic Richfield Co	Draft phase 1 RI/FS workplan, w/o attch 1	2024037
4/1/2002	Montgomery Watson Harza	Atlantic Richfield Co	Draft site-wide SAP	2024038
4/9/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (3/02), Administrative Order #2001-05 for early response actions & RI/FS	2037761
4/10/2002	Michael Hoover / US Dept of the Interior - Fish & Wildlife Service	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Recommends list of documents to be added to data document list provided at 2/27/02 technical advisory committee meeting	2037762
4/12/2002	Tetra Tech E M, Inc	-	Draft interpretation of 2001 biphasic treatment system effluent water chemistry, w/TL to K Mayer fr G Reller	2037764
4/17/2002	Geoff Dornan / Nevada Appeal (Newspaper)	-	Newsclip: Scientist says new, cheaper biological method will help clean Leviathan Mine	2040121
4/19/2002	David Reisman / Environmental Protection Agency Edward Bates / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Memo: Comments on draft site 2002 early response action workplan dated 3/02 (Privileged document target only)	2074221
4/25/2002	CA Dept of Health Services	-	Public comment draft public health assessment, w/TL to K Mayer fr G Braun & M Underwood 4/30/02	2037763
4/30/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Draft phase 1 RI/FS workplan & site-wide SAP	2024033
5/1/2002	Laurie Scribe / CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Draft QAPP for 2002 pond water treatment monitoring, w/o figures & app B	2037767
5/8/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (4/02), Administrative Order #2001-05 for early response actions & RI/FS	2024031
5/9/2002	Douglas Grosse / Environmental Protection Agency	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Thanks for participating in Hardrock Mining 2002 - issues shaping industry	2040122
5/9/2002	Kevin Mayer / Environmental Protection Agency - Region 9	-	Presentation - Leviathan Mine superfund project, geography & culture creates a tapestry of stakeholders (Hardrock Mining Conference 5/02, presentation #55)	2040123
5/30/2002	CA Dept of Health Services	-	Mtg Notice: Public health assessment, Dresslerville, NV	2024032
5/31/2002	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Damian Higgins / US Dept of the Interior - Fish & Wildlife Service	Ltr: Request for informal consultation for channel clearing work, w/o attch	2037766
6/3/2002	Steve Ferry / Atlantic Richfield Co	Gregory Braun / CA Dept of Health Services	Ltr: Transmits comments on public comment draft, public health assessment evaluation, w/attch	2037768
6/13/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits channel underdrain 2001 treatment trial solids analysis, w/attch	2037769
6/24/2002	Steve Ferry / Atlantic Richfield Co	Gregory Braun / CA Dept of Health Services	TL: Electronic data fr spring 1998 steam monitoring program, 2001 year-end rpt, & data rpt for study area - water & sediment toxicity testing & benthic community data	2040125
6/26/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Steve Ferry / Atlantic Richfield Co	Ltr: Approves 2002 early response action workplan	2037770
6/26/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Steve Ferry / Atlantic Richfield Co	Ltr: Approves design rpt for Aspen Seep biocell enhancement	2037771
6/28/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9 Kathi Moore / Environmental Protection Agency - Region 9 Vicki Rosen / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Email: Leviathan contact list, w/o attch (LMC Trustees Contact List.pdf) (Privileged document target only)	2074230
6/28/2002	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Transmits comments on & approves of 2002 pond water treatment workplan, 2002 site maintenance workplan, 2002 site monitoring workplan, & 2002 site revegetation workplan, w/attch	2037772
7/2/2002	Steven Brooks / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits index of references fr Anaconda geological documents collection at Univ of Wyoming, w/attch	2037773
7/10/2002	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R02S66, SDG 02182A, 8 water samples analyzed for total dissolved solids, collected 6/26/02, w/TL to K Mayer fr B Bettencourt 7/30/02	2039302
7/10/2002	Steve Ferry / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (6/02), Administrative Order #2001-05 for early response actions & RI/FS	2037774
7/16/2002	Rob Greenbaum / Washoe Tribe of Nevada & California	Steve Ferry / Atlantic Richfield Co	TL: META4 - metal exposure & transformation assessment model	2040126
7/22/2002	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R02S66, SDG 02182A, 15 water samples analyzed for metals, collected 6/26/02, w/TL to K Mayer fr B Bettencourt 7/25/02	2039301
7/22/2002	Environmental Protection Agency - Region 9	Environmental Protection Agency - Region 9	Analysis rpt - Case R02S66, SDG 02182A, 8 water samples analyzed for sulfate, collected 6/26/02, w/TL to K Mayer fr B Bettencourt 7/31/02	2039303
7/30/2002	E N S R International Gradient Corp E R Mancini & Assoc	Atlantic Richfield Co	Preliminary human health & ecological risk evaluations - E Fork Carson River near Bryant Creek, Douglas County, NV	2037765
7/31/2002	Environmental Protection Agency - Region 9 Tetra Tech E M, Inc	-	Site tour	2037775
8/9/2002	Barry Duff / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (7/02), Administrative Order #2001-05 for early response actions & RI/FS	2037776
8/14/2002	David Harlow / US Dept of the Interior - Fish & Wildlife Service	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on draft site phase 1 RI/FS workplan	2040128
8/16/2002	Marguerite Diaz / CA Dept of Fish & Game - Office of Spill Prevention & Response	Leviathan Mine Council	(Privileged - FOIA exs 5 & 7) Ltr: Transmits trustee list of potentially disclosable documents, w/attch (Privileged document target only)	2074912
8/23/2002	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Wayne Nordwall / US Dept of the Interior - Bureau of Indian Affairs	Ltr: Comments on natural resource damage assessment plan, public release draft	2037777
8/29/2002	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Ltr: Discusses & transmits technical review of preliminary human health & ecological risk evaluations, w/attch (draft) (Privileged document target only)	2074911
9/9/2002	Barry Duff / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (8/02), Administrative Order #2001-05 for early response actions & RI/FS	2039250
9/10/2002	Harding E S E, Inc	Environmental Protection Agency - Region 9	Oversize Drawings (bound): Delta seep & channel underdrain (CUD) pump stations, 90% submittal, 24 X 36 in, scales vary (re admin order for early response actions)	2039253
9/12/2002	Barry Duff / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Oversize Drawings (bound): Delta seep & channel underdrain (CUD) pump stations, 90% submittal re admin order for early response actions	2039252
9/15/2002	Michael Matuska / Federation of Fly Fishers - CA & NV Council	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Thanks for public tour of site on 7/31/02	2039251
10/9/2002	Barry Duff / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (9/02), Administrative Order #2001-05 for early response actions & RI/FS	2039254
10/15/2002	Gary Schiff / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits analytical results & comments on preliminary human health & ecological risk evaluation - E Fork Carson River near Bryant Creek, w/attch	2039255
11/1/2002	-	Atlantic Richfield Co	Site database, version 11/02, technical memo for phase 1 RI/FS, w/TL to K Mayer fr D Ferriter 11/14/02	2039262
11/4/2002	Robin Bullock / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Notification of change in project managers & transmits resume, w/attch	2039256
11/9/2002	Barry Duff / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (10/02), Administrative Order #2001-05 for early response actions & RI/FS	2039257
11/12/2002	Tom Sharp / Sharp Corp	Barry Duff / Atlantic Richfield Co	Memo: Combined treatment of channel underdrain, Delta Seep, pit underdrain, & adit (draft), w/TL to K Mayer fr D Ferriter 11/19/02	2039258
11/26/2002	Rob Greenbaum / Washoe Tribe of Nevada & California	Gregory Braun / CA Dept of Health Services	Email: Discusses upcoming site posting meeting, w/history & draft agenda	2040129
11/27/2002	Wayne White / US Dept of the Interior - Fish & Wildlife Service	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits proposed scope of work (SOW) for development of RI/FS, w/attch	2039259
12/1/2002	-	Atlantic Richfield Co	Draft 2003 site management plan, w/TL to K Mayer fr D Ferriter 12/31/02	2039263
12/9/2002	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (11/02), Administrative Order #2001-05 for early response actions & RI/FS	2039260
12/20/2002	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	-	Ltr: Request for early consultation on proposed operation of temporary treatment facility	2039261
1/9/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (12/02), Administrative Order #2001-05 for early response actions & RI/FS	2039305
1/10/2003	Gregory Reller / Tetra Tech E M, Inc	Rob Greenbaum / Washoe Tribe of Nevada & California	TL: 6 copies of draft 2003 site management plan on compact disc	2039264
1/24/2003	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Review of technical memo & site database, version 11/02	2039265
1/30/2003	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	-	Ltr: Discusses & transmits draft negative declaration for lime neutralization of acidic drainage, w/attch	2039266
2/1/2003	CA Regional Water Quality Control Board - Lahontan Region	-	2002 year-end rpt, w/TL to K Mayer fr C Stetler 2/27/03	2039271
2/7/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (1/03), Administrative Order #2001-05 for early response actions & RI/FS	2039267
2/21/2003	CA Regional Water Quality Control Board - Lahontan Region	-	Mtg Agenda: Item 10 - resolution to certify mitigated negative declaration for lime neutralization of acidic drainage, w/encls 1 & 2	2039270
2/21/2003	CA Regional Water Quality Control Board - Lahontan Region	-	Mtg Agenda: Regular meeting on 3/12 & 3/13/03	2039269
2/21/2003	Carrie Granados / CA Regional Water Quality Control Board - Lahontan Region	-	TL: Meeting agenda for 3/12 & 3/13/03, & agenda item 10 - resolution to certify mitigated negative declaration for lime neutralization of acidic drainage	2039268
3/1/2003	Unipure Environmental	Atlantic Richfield Co	2002 early response action channel underdrain treatment completion rpt (apps A-E), w/TL to K Mayer fr D Ferriter 3/5/03	2039288
3/1/2003	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2002 oversight summary rpt (compact disc only)	2039906
3/1/2003	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2002 oversight summary rpt, w/o compact disc	2039291
3/1/2003	NV Dept of Conservation & Natural Resources - Div of Environmental Protection	-	Bryant Creek total maximum daily loads - arsenic, copper, iron, nickel, turbidity, total suspended solids, & temperature (draft #5)	2039304
3/1/2003	Unipure Environmental	Atlantic Richfield Co	Draft 2002 early response action completion rpt, w/TL K Mayer fr D Ferriter 3/5/03	2039272
3/1/2003	Timothy Tsukamoto / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering Glenn Miller / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering	Atlantic Richfield Co	Draft data summary rpt for bioreactors at Aspen Seep 2002	2039294
3/6/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (2/03), Administrative Order #2001-05 for early response actions & RI/FS	2039273
3/12/2003	CA Regional Water Quality Control Board - Lahontan Region	-	Mitigated negative declaration for lime neutralization of acidic drainage (resolution #R6T-2003-0014), w/TL fr C Granados 3/17/03	2039274
3/17/2003	Gregory Reller / Tetra Tech E M, Inc	Rob Greenbaum / Washoe Tribe of Nevada & California	TL: 4 copies of 2002 oversight summary rpt	2039290
3/17/2003	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	TL: 4 copies of 2002 oversight summary rpt	2039292
3/19/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: 3 copies of draft data summary rpt for bioreactors at Aspen Seep 2002	2039293
3/20/2003	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Daniel Ferriter / Atlantic Richfield Co	Ltr: Comments on draft 2002 early response action completion rpt	2039295
3/20/2003	Ned Black / Environmental Protection Agency - Region 9	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Discusses & transmits sediment & water data fr samples collected on 9/27-9/29/00, 6/14/01, & 6/26/02, w/o attchs	2039296
3/28/2003	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Email: New location for 4/2/03 technical advisory committee meeting, w/history & forward to R Greenbaum fr K Mayer	2040131
3/31/2003	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Email: Discusses site hydrogeology (Privileged document target only)	2074231
3/31/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (3/03), Administrative Order #2001-05 for early response actions & RI/FS	2039297
4/1/2003	E M C 2	Atlantic Richfield Co	Draft 2003 early response action workplan	2039318
4/2/2003	-	-	Mtg Agenda: Technical advisory committee meeting, w/sign-in sheet & PowerPoint notes	2039306
4/9/2003	Steven Brooks / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on site database, draft phase 1 RI/FS workplan, 2002 early response action completion rpt, & E Fork Carson River risk evaluation	2039307
4/15/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: Draft 2003 early response action workplan	2039316
5/7/2003	US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry	Environmental Protection Agency - Region 9	Public health assessment	2039317
5/8/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (4/03), Administrative Order #2001-05 for early response actions & RI/FS	2039308
5/14/2003	Gregory Reller / Tetra Tech E M, Inc	Rob Greenbaum / Washoe Tribe of Nevada & California	TL: Draft 2003 early response action workplan on compact disc	2039309
5/27/2003	Tetra Tech E M, Inc	Edward Bates / Environmental Protection Agency	2003 technology evaluation plan/QAPP	2039287
5/27/2003	William Nelson / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry	-	TL: Public health assessment	2039312
6/4/2003	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Randy Pahl / NV Dept of Conservation & Natural Resources - Div of Environmental Protection	Ltr: Discusses & transmits comments on Bryant Creek total maximum daily loads - arsenic, copper, iron, nickel, turbidity, total suspended solids, & temperature (draft #5), w/attch	2039310
6/6/2003	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Workplan for 2003 site work, w/o attchs 2 & 3, w/TL to K Mayer fr C Stetler	2039311
6/9/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (5/03), Administrative Order #2001-05 for early response actions & RI/FS	2039313
7/24/2003	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Amendment to workplan for 2003 site work	2039319
8/8/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (7/03), Administrative Order #2001-05 for early response actions & RI/FS	2039320
9/1/2003	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) RI components - long-term RI (internal discussion draft) (Privileged document target only)	2074229
9/1/2003	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	SAP for pond water treatment	2039321
9/3/2003	Elaine Bolduc / Washoe Tribe of Nevada & California	Philip Armstrong / Environmental Protection Agency - Region 9	Ltr: Transmits support agency cooperative agreement 2nd quarter rpt for 2003, w/attch	2040132
9/17/2003	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Requests review & written approval of SAP for pond water treatment	2039324
10/10/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (9/03), Administrative Order #2001-05 for early response actions & RI/FS	2039322
10/15/2003	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	TL: SAP for pond water treatment	2039323
10/24/2003	Robert Hunter / US Dept of the Interior - Bureau of Indian Affairs	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: New agency representative will attend 11/13/03 technical advisory committee meeting	2040133
11/10/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (10/03), Administrative Order #2001-05 for early response actions & RI/FS	2039325
11/13/2003	-	-	Mtg Minutes: Technical advisory committee meeting	2039326
11/17/2003	Kevin Mayer / Environmental Protection Agency - Region 9	Daniel Ferriter / Atlantic Richfield Co	Ltr: Direction to submit EE/CA for next early response action pursuant to Order #2001-05	2039327
12/2/2003	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Will prepare EE/CA as non-time-critical removal action pursuant to Order #2001-05	2039328
1/1/2004	Laurie Scribe / CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	SAP for surface water monitoring	2039329
2/1/2004	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	2003 year-end rpt	2029937
2/3/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Rob Greenbaum / Washoe Tribe of Nevada & California	Mtg Minutes: 1/14/04 meeting to discuss discharge & sludge management regulations for EE/CA for year round treatment of acid rock drainage	2039330
2/6/2004	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (1/04), Administrative Order #2001-05 for early response actions & RI/FS	2039331
2/7/2004	Barbara Harper / A E S E, Inc	Rob Greenbaum / Washoe Tribe of Nevada & California	Technical Memo: Pathways & key resources for sampling	2039332
2/11/2004	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits 2003 year-end rpt , w/o attch	2029936
2/24/2004	Kelley Keiper / Brooke, Shaw, & Zumpft (Attorneys)	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Demands proposal re ways in which clients will receive unfettered use of water rights, be compensated for economic loss, & be compensated for permanently diminished value of property	2039333
2/24/2004	Kelley Keiper / Brooke, Shaw, & Zumpft (Attorneys)	Daniel Ferriter / Atlantic Richfield Co	Ltr: Demands proposal re ways in which clients will receive unfettered use of water rights, be compensated for economic loss, & be compensated for permanently diminished value of property	2039334
2/24/2004	Kelley Keiper / Brooke, Shaw, & Zumpft (Attorneys)	Steven Blum / CA Water Resources Control Board	Ltr: Have forwarded demand ltr to Atlantic Richfield Co	2039335
3/4/2004	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	-	Ltr: Request for early consultation on delta slope stabilization project, w/attch	2039336
3/10/2004	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (2/04), Administrative Order #2001-05 for early response actions & RI/FS	2039337
3/15/2004	E M C 2	Atlantic Richfield Co	Preliminary draft technology screening summary & cost estimates for alternatives, w/TL to K Mayer fr M Johnson 3/10/04	2039339
3/17/2004	-	-	Mtg Minutes: Technical advisory committee meeting	2039338
3/31/2004	E M C 2	Atlantic Richfield Co	Draft EE/CA, w/TL to K Mayer fr D Ferriter 4/2/04	2039340
4/13/2004	Gregory Reller / Tetra Tech E M, Inc	-	TL: Draft EE/CA (electronic copy)	2039341
4/15/2004	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (3/04), Administrative Order #2001-05 for early response actions & RI/FS	2039343
4/16/2004	Wendy Johnson / CA Dept of Fish & Game - Office of Spill Prevention & Response	Jean Martin / Atlantic Richfield Co	Ltr: Comments on scope of work (SOW) for impending biomonitoring of remediation efforts	2039344
4/27/2004	E M C 2	Atlantic Richfield Co	Draft 2004 site management plan	2039347
4/27/2004	Timothy Tsukamoto / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering Glenn Miller / Univ of Nevada, Reno - Center for Environmental Sciences & Engineering	Atlantic Richfield Co	Draft final 2003 data summary rpt for bioreactors at Aspen Seep	2039346
4/27/2004	Unipure Environmental	Atlantic Richfield Co	Draft final 2003 early response action completion rpt	2039348
4/27/2004	Lorax Energy Systems, L L C	Atlantic Richfield Co	Draft final 2003 wind data summary rpt	2039345
4/27/2004	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	TL: 2003 wind data summary rpt, 2003 data summary rpt for bioreactor at Aspen Seep, 2003 early response action completion rpt, & 2004 site management plan (drafts final)	2039349
4/28/2004	Environmental Protection Agency - Region 9	-	Public Notice: Invites public comment on engineering evaluation/cost analysis (EE/CA) for treating acid mine drainage, w/proof of publication in Record Courier	2025272
4/28/2004	Environmental Protection Agency - Region 9	-	Public Notice: Invites public comment on engineering evaluation/cost analysis (EE/CA) for treating acid mine drainage, w/proof of publication in Reno Gazette-Journal	2025273
4/30/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Email: Answers questions re 5/21 EE/CA scoping tour & meeting, w/history	2039350
5/5/2004	Gary Schiff / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Requests extension of comment period for draft EE/CA	2039356
5/10/2004	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	-	Negative declaration for delta slope stabilization project	2039342
5/11/2004	Max Montgomery / Cherokee Engineering, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Willing to work on site project	2039352
5/12/2004	Steven Brooks / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Email: Plans for EE/CA scoping tour	2039351
5/17/2004	CA Regional Water Quality Control Board - Lahontan Region	Environmental Protection Agency - Region 9	Workplan for 2004 site work, w/TL to K Mayer fr C Stetler	2039353
5/24/2004	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Memo: Technical review of draft final data summary rpt for bioreactors at Aspen Seep 2003 (Privileged document target only)	2074232
5/25/2004	William Shaw / Brooke, Shaw, & Zumpft (Attorneys)	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on proposal for year-round treatment system	2039357
6/1/2004	Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Briefing material for 6/01 meeting with Washoe Tribal Chair (Privileged document target only)	2074234
6/1/2004	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2003 oversight summary rpt, w/TL to K Mayer fr G Reller (compact disc only)	2040792
6/1/2004	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2003 oversight summary rpt, w/TL to K Mayer fr G Reller, w/o compact disc	2039355
6/1/2004	Environmental Protection Agency - Region 9	-	Community involvement plan, w/apps A-H	2034386
6/7/2004	Daniel Ferriter / Atlantic Richfield Co	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Monthly progress rpt (5/04), Administrative Order #2001-05 for early response actions & RI/FS	2039354
6/10/2004	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Transmits comments on draft engineering evaluation/cost analysis (EE/CA), w/attch	2039358
6/11/2004	Gregory Reller / Tetra Tech E M, Inc	Kevin Mayer / Environmental Protection Agency - Region 9	(Privileged - FOIA ex 5) Memo: Technical review of draft 2004 site management plan (Privileged document target only)	2074233
6/14/2004	Gary Schiff / US Forest Service - Humboldt-Toiyabe National Forest	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on draft engineering evaluation/cost analysis (EE/CA)	2040097
6/15/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Chris Stetler / CA Regional Water Quality Control Board - Lahontan Region	Ltr: Approves of workplan for 2004 site work, w/attch	2040100
6/15/2004	Rob Greenbaum / Washoe Tribe of Nevada & California	Kevin Mayer / Environmental Protection Agency - Region 9	Memo: Comments on draft engineering evaluation/cost analysis (EE/CA)	2040098
6/17/2004	David Harlow / US Dept of the Interior - Fish & Wildlife Service	Kevin Mayer / Environmental Protection Agency - Region 9	Ltr: Comments on draft engineering evaluation/cost analysis (EE/CA)	2040099
7/16/2004	Joshua Wirtschafter / Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Case conclusion form for 4th modification to administrative abatement action (Privileged document target only)	2074239
7/16/2004	Joshua Wirtschafter / Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Case initiation form for 4th modification to administrative abatement action (Privileged document target only)	2074238

7/16/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Joshua Wirtschafter / Environmental Protection Agency - Region 9	(Privileged - FOIA exs 5 & 7) Email: Discusses press release re order for removal action, w/history (Privileged document target only)	2074227
7/16/2004	Joshua Wirtschafter / Environmental Protection Agency - Region 9	-	(Privileged - FOIA exs 5 & 7) Implementation of UAO reform questionnaire (Privileged document target only)	2074226
7/29/2004	Environmental Protection Agency - Region 9	-	(Privileged - FOIA ex 5) Internal briefing for early response action - recommendation for phased implementation of on-site winter treatment (Privileged document target only)	2074235
7/29/2004	Kevin Mayer / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	(Privileged - FOIA exs 5 & 7) Memo: Documentation of reasons for not issuing CERCLA Section 106 UAO to all identified PRPs (Attachment 1) (Privileged document target only)	2074225
7/29/2004	Environmental Protection Agency - Region 9	-	4th modification to administrative abatement action of 7/19/00, docket #2004-28, w/o attch 1	2040103
7/29/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Action Memo: Request for approval of removal action	2040102
7/29/2004	Kevin Mayer / Environmental Protection Agency - Region 9 Joshua Wirtschafter / Environmental Protection Agency - Region 9	Keith Takata / Environmental Protection Agency - Region 9	Ltr: Transmits for review & signature 4th modification to administrative abatement action, w/o attch	2043115
7/29/2004	Keith Takata / Environmental Protection Agency - Region 9	Harold Singer / CA Regional Water Quality Control Board - Lahontan Region	TL: Request for approval of removal action, & 4th modification to administrative abatement action of 7/19/00	2040101
7/30/2004	Kevin Mayer / Environmental Protection Agency - Region 9	Robert Fitzgerald / Environmental Protection Agency - Region 9	Polrep #RWQCB 2004-Start (01 PRP RA Start 007)	2039275
2/16/2005	Kevin Mayer / Environmental Protection Agency - Region 9	Robert Fitzgerald / Environmental Protection Agency - Region 9	Polrep #RWQCB 2004-Complete (01 PRP RA Complete 007)	2056493
3/1/2005	Tetra Tech E M, Inc	Environmental Protection Agency - Region 9	2004 oversight summary rpt, w/apps A & B, w/TL to K Mayer fr G Reller 3/9/05	2060743
3/23/2005	Cynthia Wetmore / Environmental Protection Agency - Region 9	Daniel Ferriter / Atlantic Richfield Co	Ltr: Approves treatment technology concept re year-round treatment facility design for channel underdrain & delta seep flows	2060742
6/1/2005	Environmental Protection Agency - Region 9	-	Fact Sheet: Year-round treatment system chosen for acid mine drainage	2067157
7/12/2005	Kevin Mayer / Environmental Protection Agency - Region 9	Elizabeth Adams / Environmental Protection Agency - Region 9	Action Memo: Request for approval of engineering evaluation/cost analysis (EE/CA) & non-time-critical removal action at site, w/app A (00 EE/CA Complete 001)	2069500
7/13/2005	Environmental Protection Agency	-	List of US EPA guidance documents consulted during development & selection of response action for site	2066330

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