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Administrative Record Index

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List of Abbreviations and Acronyms Used in Administrative Record Index

ABBREVIATION MEANING ADEQ Arizona Dept. Environmental Quality ADHS Arizona Dept. Health Services ADWR Arizona Dept. Water Resources AMTO After My Term of Office AO Administrative Order APS Arizona Public Service Attch Attachment AZ State of Arizona AZDOEQ Arizona Dept. of Environmental Quality AZDOHS Arizona Dept. of Health Services AZDOWR Arizona Dept. of Water Resources CA State of California CDC Centers for Disease Control CDM Comprehensive Data Management CERCLA Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (Superfund) CGTF Central Groundwater Treatment Facility CH2M CH2M Hill (EPA consultant) COD Chemical Oxygen Demand CORA Cost of Remedial Actions DOHS Dept. of Health Services DOJ Dept. of Justice EMSL Environmental Monitoring Support (or Systems) Laboratory Encl Enclosure EPA Environmental Protection Agency EXH Exhibit FIT Field Investigation Team FOIA Freedom of Information Act fr From FS Feasibility Study FSP Field Sampling Plan HRS Hazard Ranking System HWDMS Hazardous Waste Data Management System IBW Indian Bend Wash IBWN Indian Bend Wash North LA Los Angeles LAU Lower Alluvium Unit Ltr Letter MAU Middle Alluvium Unit MCL Maximum Contaminant Level NIBW North Indian Bend Wash NIMTO Not In My Term of Office NPDES National Pollutant Discharge Elimination System NPL National Priorities List OSWER Office of Solid Waste & Emergency Response OU Operable Unit OUFS Operable Unit Feasibility Study PRP Potentially Responsible Party QA Quality Assurance QA/QC Quality Assurance/Quality Control QAMS Quality Assurance Management Staff QAPP Quality Assurance Project Plan QC Quality Control RA Remedial Action RAMP Remedial Action Master Plan (no longer prepared) RCRA Resource Conservation and Recovery Act RD Remedial Design RI Remedial Investigation RI/FS Remedial Investigation/Feasibilty Study ROC Record of Communication ROD Record of Decision Rpt Report SAP Sampling & Analysis Plan SAS Special Analytical Services SOP Standard Operating Procedure SOW Statement of Work or Scope of Work ST Street STP Sewage Treatment Plant SVE Soil Vapor Extraction SVM Soil Vapor Monitoring TCA Trichloroethane TCE Trichloroethylene or Trichloroethene TDD Technical Directive Document TDM Technical Direction Memorandum TDS Total Dissolved Solids TEM Transmission Electron Microscopy TL Transmittal Letter TSD Treatment Storage & Disposal (facility) UAU Upper Alluvial Unit US United States USA United States of America USC United States Code USCOE US Army Corp of Engineers UST Underground Storage Tank VLEACH Trademark VOA Volatile Organic Analysis VOC Volatile Organic Compound w/ With w/o Without WA Work Assignment WMD Water Management Division WQ Water Quality WRC Water Resources Council

Administrative Record Index

Doc Date Author / Auth. Affiliate Addressee / Addr. Affiliate Subject AR # Roll # Frame # Doc ID 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Robert Kaufmann / Mark Group, Inc Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2031 1 1668 0218-91243 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Beggs / SmithKline Beecham Corp Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2032 1 1670 0218-91246 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2033 1 1672 0218-91351 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Errol Montgomery / Errol L Montgomery & Assoc, Inc Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2034 1 1674 0218-91378 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Don Netko / Motorola, Inc Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2035 1 1676 0218-91381 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 David Stephenson / GeoWest Group, Inc Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2036 1 1678 0218-91384 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2037 1 1680 0218-91385 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Donald Atkinson / AZ Dept of Environmental Quality Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2038 1 1682 0218-91404 1991/08/05 Dan Opalski / Environmental Protection Agency - Region 9 Mason Bolitho / AZ Dept of Water Resources Ltr: Announcing time & place of next project committee meeting & agenda, w/o encls distribution list & memo re data status 2039 1 1684 0218-91405 1991/08/07 Errol L Montgomery & Assoc, Inc Environmental Protection Agency - Region 9 Water level measurments, upper alluvium unit groundwater monitor wells, w/TL to Dan Opalski fr Leslie Katz 8/9/91 2040 1 1686 0218-91567 1991/08/08 Len Erie / Erie & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Cheney Estates residential project, w/rough grading plans & 404 permit [USCE file #91-324-CL] 2041 1 1689 0218-00709 1991/08/12 Jerome Vail / I C F Technology, Inc Dan Opalski / Environmental Protection Agency - Region 9 Memo: Quality assurance project plan (QAPP) has been reviewed, issues addressed, recommended for approval 2042 1 1698 0218-91601 1991/08/13 Peter Mock / C H 2 M Hill Distribution List Memo: Transmits correspondence concerning elevation at monitoring well E-3UA, 3/22/90 - 7/31/91, w/attch 2043 1 1700 0218-00557 1991/08/13 C H 2 M Hill IBW Project Committee Monthly water level measurements, 7/91 & 8/91 & weekly measurements, 7/8 - 7/29/91, w/TL to IBW Project Committee fr Willie Paiz (date fr TL) 2044 1 1707 0218-00558 1991/08/16 Jeff Zelikson / Environmental Protection Agency - Region 9 Harry Seraydarian / Environmental Protection Agency - Region 9 Memo: Transmits draft of ROD & concurrence sheet for signature, w/o attch 2045 1 1714 0218-91568 1991/08/16 Dan Opalski / Environmental Protection Agency - Region 9 Mason Bolitho / AZ Dept of Water Resources Ltr: Requesting comments on Record of decision (ROD) draft by 8/30/91, w/o encl 2046 1 1716 0218-91594 1991/08/16 Dan Opalski / Environmental Protection Agency - Region 9 Donald Atkinson / AZ Dept of Environmental Quality Ltr: Requesting comments on Record of decision (ROD) draft by 8/30/91, w/o encl 2047 1 1718 0218-91595 1991/08/19 Jerome Vail / I C F Technology, Inc Dan Opalski / Environmental Protection Agency - Region 9 Memo: Revised Sampling & analysis plan (SAP) reviewed & approved, w/o attchs 2048 1 1720 0218-91599 1991/08/20 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Approval of Quality assurance project plan (QAPP) & Sampling & analysis plan (SAP), w/completed approval pages 2049 1 1722 0218-91572 1991/08/20 Dan Opalski / Environmental Protection Agency - Region 9 Len Erie / Erie & Assoc, Inc Ltr: Re Cheney Estates 404 permit application, appears will not interfere with clean-up activities being considered 2050 1 1726 0218-91574 1991/08/26 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Contour maps of 08/91 - groundwater levels, w/ltr explaining maps 2051 1 1728 0218-00694 1991/08/27 Errol L Montgomery & Assoc, Inc - Technical workplan, 2 lower alluvium unit (LAU) monitor wells, w/TL to D Opalski fr D Netko 8/30/91 2052 1 1743 0218-00693 1991/08/28 Dan Baggett / Malcolm Pirnie, Inc Jim Nelson / City of Scottsdale, AZ TL: Preliminary sets of plans & specifications & draft design development updated rpt 2053 1 1754 0218-91609 1991/08/30 Don Netko / Motorola, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Confirms receipt of & comments on 60% design package effective 8/29/91 2054 1 1756 0218-91607 1991/09/00 Environmental Protection Agency - Region 9 - Record of decision (ROD) - v1 of 3, declaration, decision summary & appendix A, ARARs & other criteria for NIBW 2055 1 1758 0218-00740 1991/09/00 Environmental Protection Agency - Region 9 - Record of decision (ROD) - v2 of 3, appendix B, Administrative Record Cumulative Index, 9/16/91 2056 1 1868 0218-00741 1991/09/00 Environmental Protection Agency - Region 9 - Record of decision (ROD) - v3 of 3, appendix C, response summary 2057 1 2956 0218-00742 1991/09/06 AZ Dept of Water Resources - Excerpt fr Arizona Revised Statutes, ARS section 45-454.01, exemption of Superfund RA activities, use requirements, definition 2058 1 2209 0218-91647 1991/09/10 - - Compendium of CERCLA response selection guidance documents 2059 1 2211 0218-00712 1991/09/30 Dan Opalski / Environmental Protection Agency - Region 9 Addressees Ltr: Transmits ROD for northern portion of site signed on 9/12/91, w/list of addressees, w/o ROD 2061 1 132 0218-91811 1991/10/15 Elizabeth Rieke / AZ Dept of Water Resources Alexis Strauss / Environmental Protection Agency - Region 9 Ltr: Completion of ROD review 2062 1 136 0218-91838 1991/11/00 Environmental Protection Agency - Region 9 - Fact Sheet: Agreement signed for partial cleanup 2063 1 138 0218-93936 1991/11/19 Jim Nelson / City of Scottsdale, AZ Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Request to accept newly submitted 60% design of Central Groundwater Treatment Facility (CGTF), w/attch 2064 1 147 0218-01129 1991/11/21 Scott Sherman, resident / City of Scottsdale, AZ US Dept of Justice Ltr: Residents correspondence re 11/91 EPA publication of agreement signed for partial cleanup (redacted, FOIA ex 6) 2065 1 180 0218-92178 1991/12/02 Douglas Steele / Environmental Protection Agency - Region 9 National Oceanic & Atmospheric Administration Ltr: Formal notification re potential damages to natural resources & intent to negotiate with PRPs re conducting or financing RD & RA at site 2066 1 184 0218-92180 1991/12/02 Douglas Steele / Environmental Protection Agency - Region 9 William Allen Ltr: Formal notification re potential damages to natural resources & intent to negotiate with PRPs re conducting or financing RD & RA at site 2067 1 186 0218-92181 1991/12/02 Douglas Steele / Environmental Protection Agency - Region 9 Edward Fox Ltr: Formal notification re potential damages to natural resources & intent to negotiate with PRPs re conducting or financing RD & RA at site 2068 1 188 0218-92182 1991/12/04 John Proynoff US Dept of Justice - Environment & Natural Resources Div Ltr: Comments re effect of TCE in groundwater at site, Justice Dept reference #90-11-2-413 2069 1 190 0218-92183 1991/12/06 Don Netko / Motorola, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: PRP comments on city/MPI 60% design review response, w/attch 2070 1 192 0218-01132 1991/12/06 David Hayes / Latham & Watkins (Attorneys) Martha Black / Environmental Protection Agency - Region 9 Ltr: Confirms offer submitted by Siemens to conduct area specific vadose zone work for areas 5A, 6, 7, 8 & 11 2071 1 200 0218-92609 1991/12/10 Dan Opalski / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Central Groundwater Treatment Facility (CGTF) 60% design 2072 1 203 0218-92185 1991/12/17 Tom Mooney / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Technical Memo: Draft data evaluation for site, w/attchs 2073 1 206 0218-02254 1991/12/17 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits table 1, summary of water level measurements, Motorola monitor wells, obtained on 12/6/91, w/encl 2074 1 435 0218-92186 1991/12/17 Willie Paiz / C H 2 M Hill IBW Committee Memo: Transmits monthly water level measurements, 12/91, w/encl 2075 1 438 0218-92187 1991/12/19 William Nelson / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry Julia Connolly, resident Ltr: Response to ltr requesting more current & comprehensive health assessment be performed 2076 1 442 0218-92189 1991/12/27 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 12/91 water level measurements, monitor wells of UAU, MAU & LAU alluvium units, NIBW study area 2077 1 444 0218-01097 1991/12/30 GeoWest Group, Inc N I B W Participating Cos Summary of data on naturally-occurring background levels of selected constituents in groundwater (preliminary rpt) 2078 1 461 0218-02069 1991/12/31 Edward Fox / AZ Dept of Environmental Quality Douglas Steele / Environmental Protection Agency - Region 9 Ltr: Response & thank you to 12/2/91 ltr re AZDOEQ invitation to participate with EPA in RD & RA negotiations 2079 1 484 0218-92191 1992/01/08 Peter Mock / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Memo: Summary of metals in groundwater at site (handwritten), w/attchs & TL to D Opalski fr P Mock 1/15/92 2080 1 486 0218-93324 1992/01/13 Mark Scarp / Scottsdale Progress - Newsclipping: 2nd phase of toxic clean-up OK'd 2081 1 494 0218-92192 1992/01/13 Brad Cross / Levine-Fricke Dan Opalski / Environmental Protection Agency - Region 9 Memo: Agenda items for 1/16/92 technical meeting 2082 1 496 0218-93453 1992/01/14 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits map of upper alluvium unit (UAU) remedy monitor well locations, w/attch 2083 1 498 0218-02059 1992/01/24 Barbara Goldberg / City of Scottsdale, AZ Dan Opalski / Environmental Protection Agency - Region 9 Ltr: City request to resume work on design of Central Groundwater Treatment Facility (CGTF) specified in consent decree for phase 1 2084 1 501 0218-92194 1992/01/28 Willie Paiz / C H 2 M Hill IBW Committee Memo: Transmits monthly water level measurements, 1/92, w/attch 2085 1 504 0218-92195 1992/01/30 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 1/92 water level measurements, monitor wells of UAU, MAU & LAU lower alluvium, NIBW study area, w/attchs 2086 1 509 0218-01098 1992/02/00 Environmental Protection Agency - Region 9 - Fact sheet: Monitoring wells to be drilled in NIBW 2087 1 524 0218-92513 1992/02/07 Mike Phillips / Scottsdale Progress - Newsclip: Contamination drifting N into more water 2088 1 527 0218-92324 1992/02/12 Mark Scarp / Scottsdale Progress - Newsclipping: EPA announces plans to dig groundwater monitoring wells 2089 1 529 0218-92332 1992/02/17 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits table 1 summary of water level measurements for Motorola upper alluvium unit groundwater monitor wells, w/attch 2090 1 531 0218-92196 1992/02/20 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Memo: Transmits revised copies of table B.11 & figure B.11 re upper alluvium monitor well locations for inclusion in UAU groundwater SOW, w/attchs 2091 1 534 0218-93956 1992/02/21 David Stephenson / GeoWest Group, Inc IBW Project Participants Ltr: Transmits update photomap showing current monitor & production wells, w/map legend, w/o photomap 2092 1 543 0218-92198 1992/02/27 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 2/92 water level measurements, monitor wells of UAU, MAU & LAU alluvium units, NIBW study area, w/attchs 2093 1 546 0218-01099 1992/03/05 Tom Mooney / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Memo: Elevated levels of AL & Sb in groundwater, w/inorganic analyses data sheets 2094 1 562 0218-01136 1992/03/06 Leslie Katz / Errol L Montgomery & Assoc, Inc George Pogue / Motorola, Inc Memo: Transmits revised specifications for installation of early start middle alluvium unit monitor wells, w/TL to T Suriano fr L Katz 3/6/92 & attch 2095 1 573 0218-92200 1992/03/08 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 2/93 groundwater levels, w/attch 2096 1 578 0218-01289 1992/03/09 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 2/92 2097 1 599 0218-01109 1992/03/11 Tom Mooney / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Memo: Concentrations of Al & Sb in site groundwater w/TL to D Opalski fr T Mooney 2098 1 643 0218-93454 1992/03/24 Salt River Project Environmental Protection Agency - Region 9 Water quality data, lab rpts, QA/QC rpts, chain of custody & case narrative, 1/92, VOC time series graphs [AO #89-15], w/TL to D Suriano fr D Opalski 2099 1 649 0218-01111 1992/03/30 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 3/92 water level measurements, monitor wells of UAU, MAU & LAU alluvium units, NIBW study area, w/attch 2100 1 793 0218-01100 1992/03/31 Eric Bissonette / AZ Dept of Water Resources Dan Opalski / Environmental Protection Agency - Region 9 Memo: Antimony occurrence levels in State of AZ listed in table A, w/TL to D Opalski fr & E Bissonette 3/31/92 2101 1 808 0218-92204 1992/04/06 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 3/92 2102 1 811 0218-01112 1992/04/06 Malcolm Pirnie, Inc Jim Nelson / City of Scottsdale, AZ Central Groundwater Treatment Facility (CGTF), minutes of 4/6/92 project status mtg, w/TL to J Nelson fr G Cline 4/13/92 2103 1 875 0218-92205 1992/04/21 Errol Montgomery / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits results of lab chemical analyses obtained at lower alluvium unit monitor wells (A-2-4)13dda[PG-1LA] & (A-2-4)14cda[PG-2LA], w/attch 2104 1 881 0218-01138 1992/04/23 Analytical Technologies, Inc - Results of lab chemical analyses for groundwater samples (gas chromatography) taken 4/13, 14 & 15/92, well M-16U, w/TL to D Opalski fr L Katz 6/22/92 2105 1 896 0218-92225 1992/04/28 US District Court - Arizona - Consent decree for RA & recovery of future response costs, USA & AZ, vs Motorola et al, #CIV 91-1835 PHX SMM, w/apps A-D 2106 1 899 0218-01255 1992/04/28 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits table 1 summary of water level measurements for Motorola upper alluvium unit groundwater monitor wells, w/attch 2107 1 1097 0218-92207 1992/04/29 Environmental Protection Agency - Region 9 - Press Release: US EPA & Arizona announce Superfund cleanup agreement 2108 1 1100 0218-92209 1992/04/30 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 4/92 water level measurements, monitor wells of UAU, MAU & LAU lower alluvium, NIBW study area, w/attch 2109 1 1103 0218-01101 1992/05/00 Malcolm Pirnie, Inc Scottsdale Chamber of Commerce Draft Central Groundwater Treatment Facility (CGTF) health & safety plan guidelines, w/TL to J Nelson fr G Cline 5/1/92 2110 1 1118 0218-01123 1992/05/01 Malcolm Pirnie, Inc - Central Groundwater Treatment Facility (GWTF), Contract 2, transmission mains - specifications (Draft) 2111 1 1157 0218-02292 1992/05/05 Steven Oppenheimer / Latham & Watkins (Attorneys) Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits analyses for period fr 2/88 to 4/91 re well data collected by SmithKline Beechman & Beckman Instruments, w/attch 2112 1 1280 0218-01140 1992/05/06 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 4/92 2113 1 1386 0218-01114 1992/05/06 Peter Mock / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Memo: Well count, monitoring of Scottsdale & UAU, MAU, LAU & production wells 2114 1 1425 0218-92212 1992/05/12 Terry Green / New Times - Newsclip: Motorola, what happens when the State's largest employer is tied to massive environmental contamination, Not much 2115 1 1430 0218-01241 1992/05/14 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits tables & figures summarizing groundwater v amount pumped fr production wells in NIBW area for period of (10/91 - 3/92), w/attch 2116 1 1442 0218-01102 1992/05/14 Willie Paiz / C H 2 M Hill IBW Project Committee Ltr: Transmits monthly water level measurements, 2/92, w/attch 2117 1 1483 0218-92215 1992/05/15 Roy Fedotoff / Metcalf & Eddy, Inc George Pogue / Motorola, Inc Ltr: Groundwater treatment facilities evaluation of Malcolm Pirnie 100% plans & specifications, w/attchs 2118 1 1489 0218-01141 1992/05/20 Dan Opalski / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Review & comments on 90% design submittal for Central Groundwater Treatment Facility (CGTF), w/handwritten note to D Opalski fr J Nelson 1/16/91 2119 1 1497 0218-92216 1992/05/20 Peter Mock / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Review & comments of City of Scottsdale 90% design 2120 1 1500 0218-92217 1992/05/21 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Correction of 5/6/92 monthly progress rpt fr wells PG-7MA, PG-7UA & PG-8UA to wells PG-7MA A(1-4)11bab, PG-7UA A(1-4)11bab & PG-8UA A(1-4)2bba 2121 1 1504 0218-92220 1992/05/28 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 5/92 water level measurements, monitor wells of UAU, MAU & LAU, w/TL D Opalski 5/28/92 & attchs 2122 1 1507 0218-01103 1992/05/28 Elizabeth Rieke / AZ Dept of Environmental Quality Daniel McGovern / Environmental Protection Agency - Region 9 Ltr: State of AZ will not become a signatory of NIBW CERCLA consent decree 2123 1 1523 0218-93769 1992/06/00 Malcolm Pirnie, Inc - Central Groundwater Treatment Facility (CGTF), contract 1, treatment plant v1, city project #W-8501, w/TL to distribution 7/29/92 2124 1 1526 0218-01092 1992/06/08 Errol Montgomery / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmittal of summary of lab analyses for volatile organic analyses for Motorola upper alluvium unit monitor wells except ST-3, M-4UA w/attch 2125 2 1 0218-01143 1992/06/09 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmittal of table 1 summary of water level measurements Motorola monitor wells, w/attch 2126 2 30 0218-92222 1992/06/10 Salt River Project Environmental Protection Agency - Region 9 Water quality data fr MAU/LAU groundwater monitoring 4/92, lab rpt, QA/QC rpt, chain of custody & case narrative, w/TL 2127 2 33 0218-01117 1992/06/10 Ken Starr / C H 2 M Hill IBW Project Committee Ltr: Transmittal of monthly water level measurements, 6/92, w/attch 2128 2 35 0218-92223 1992/06/18 Ronald DeWitt / Errol L Montgomery & Assoc, Inc Donald Netko / Motorola, Inc Ltr: Summary of proposed changes to monitoring program submitted for EPA review as part of UAU gw remedy draft field sampling plan, w/attch 2129 2 38 0218-93448 1992/06/26 Peter Mock / C H 2 M Hill Distribution List Memo: Transmittal of water quality results obtained by EPA during sampling in 4/92 & 5/92, w/attch 2130 2 44 0218-01144 1992/06/29 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 6/92 water level measurements, monitor wells of UAU, MAU & LAU alluvium units, NIBW study area, w/attch 2131 2 112 0218-01104 1992/06/30 Errol Montgomery / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Results of lab chemical analyses for groundwater samples - aluminum, antimony, chromium, lead & beryllium obtained on 3/26 & 6/4/92, w/attch 2132 2 127 0218-01145 1992/06/30 Dan Opalski / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Review & approval of final design submittal for Central Groundwater Treatment Facility (CGTF), w/certified mail receipt #P878533086 2133 2 150 0218-92226 1992/07/06 Peter Mock / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Review of Central Groundwater Treatment Facility (CGTF) final design 2134 2 153 0218-92228 1992/07/09 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 6/92 2135 2 156 0218-01118 1992/07/15 Martha Black / Environmental Protection Agency - Region 9 David Hayes / Latham & Watkins (Attorneys) Ltr: Transmits final draft of consent decree & lists minor changes made since 6/15/92 redline-copy, w/o encl 2136 2 188 0218-93952 1992/07/17 Willie Paiz / C H 2 M Hill IBW Project Committee Ltr: Transmits monthly water level measurements for 7/92, w/attch 2137 2 191 0218-92230 1992/07/29 James Coffee / Motorola, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits 3 executed signature pages signed by Dave Wolfe, w/o encl 2138 2 194 0218-93955 1992/07/31 Peter Mock / C H 2 M Hill Distribution List Memo: Transmits water quality sampling results obtained by EPA during sampling conducted in 6/92, w/attch 2139 2 196 0218-01146 1992/08/00 Salt River Project Environmental Protection Agency - Region 9 Water quality data for 7/92, VOC time graphs for MAU/LAU groundwater monitoring program monitor wells, w/TL 2140 2 219 0218-01120 1992/08/00 - - Volatile organic compounds (VOCs) time series in monitoring wells, 8/92 2141 2 221 0218-02579 1992/08/03 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 7/92 water level measurements, monitoring wells in UAU, MAU & LAU, NIBW study area, w/attch 2142 2 280 0218-01105 1992/08/06 Deborah Jamieson / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits signature page for consent decree signed by John Lassen, w/o encl 2143 2 299 0218-93954 1992/08/07 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 7/92 2144 2 301 0218-01119 1992/08/10 Errol L Montgomery & Assoc, Inc - Proposal for installation of 18 soil vapor monitor wells, w/TL to D Opalski fr L Katz 9/24/92 2145 2 390 0218-01198 1992/08/10 Willie Paiz / C H 2 M Hill IBW Project Committee Ltr: Transmits monthly water level measurements for 8/92, w/attch 2146 2 425 0218-92235 1992/08/10 Leslie Katz / Errol L Montgomery & Assoc, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits table 1 summary of water level measurements Motorola monitor wells, 8/4/92, w/attch 2147 2 428 0218-92236 1992/08/25 Terry Greene / New Times - Article: The cost of contamination, it will take millions of dollars to clean up Motorola's toxic spills 2148 2 431 0218-01201 1992/08/25 Dan Opalski / Environmental Protection Agency - Region 9 Don Netko / Motorola, Inc Ltr: Comments on 7/2/92 ltr of proposal re monitoring plan 2149 2 440 0218-92238 1992/08/31 Willie Paiz / C H 2 M Hill IBW Project Committee Ltr: Transmits monthly water level measurements for 8/92, w/attch 2150 2 443 0218-92239 1992/08/31 - - Water quality summary & well construction summary for phase 1 monitor wells 2151 2 446 0218-93766 1992/09/02 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 8/92 water level measurements, monitor wells of UAU, MAU & LAU alluvium units, NIBW study area, w/attch 2152 2 449 0218-01106 1992/09/02 Willie Paiz / C H 2 M Hill IBW Project Committee Ltr: Transmits monthly water level measurements for 9/92, w/attch 2153 2 464 0218-92240 1992/09/02 Samir Badri / AZ Dept of Environmental Quality Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Agreement with proposed changes to gw monitoring program 2154 2 467 0218-93434 1992/09/03 City of Scottsdale, AZ - Communications & Public Affairs - City of Scottsdale & AZDEQ statement on site cleanup agreement, w/encl 2155 2 470 0218-02359 1992/09/03 Hilda Marchetti / Salt River Project Bruce Mack / Salt River Project Memos (14): Transmits results of aquifer tests, (7/24/92 - 8/26/92), w/encls 2156 2 478 0218-02573 1992/09/08 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 8/92 2157 2 592 0218-01121 1992/09/21 George Pogue / Motorola, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Revisions to NIBW monitoring plan 2158 2 846 0218-92280 1992/09/21 Gary Cline / Malcolm Pirnie, Inc James Nelson / City of Scottsdale, AZ - Dept of Water Resources Memo: Calculations for anticipated VOC emissions fr vapor phase GAC contactors 2159 2 849 0218-93662 1992/09/23 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits lab rpts for post completion samples collected fr wells PG-21UA, PG-22UA & PG-23UA, w/attchs 2160 2 853 0218-01193 1992/09/28 William Nelson / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry Robert William / AZ Dept of Health Services Ltr: 1988 health assessment re Motorola 52nd St, w/encls (redacted, FOIA ex 6) 2161 2 877 0218-02928 1992/10/00 - - Water levels for monitoring wells 2162 2 886 0218-92298 1992/10/01 Jim Coffee / Motorola, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits Motorola ltr & KPMG ltr to Motorola board of directors, 9/21/92, re financial responsibility, Motorola, NIBW consent decree 2, w/attchs 2163 2 889 0218-92272 1992/10/08 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 9/92 water level measurements for monitor wells of UAU, MAU & LAU, w/attch 2164 2 895 0218-01196 1992/10/26 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits water level data fr monitoring wells, w/attch 2165 2 910 0218-92299 1992/11/03 Winifred Au / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 City of Scottsdale production wells, pumpage vs water quality data graphs 2166 2 914 0218-02229 1992/11/05 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Confirmation of 10/15/92 oral approval to proceed with upper alluvial unit monitoring program in accordance with proposed consent decree 2167 2 941 0218-92303 1992/11/09 GeoWest Group, Inc - Water quality data, 4th quarter, semi-annual & annual analytical results, v2, appendix B 2168 2 943 0218-01236 1992/11/10 Errol L Montgomery & Assoc, Inc Environmental Protection Agency - Region 9 Ltr: Monthly progress rpts for 10/92 & 11/92 2169 2 945 0218-01235 1992/11/11 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 10/92 water level measurements, monitor wells of upper, middle & lower alluvium units, w/attch 2170 2 1091 0218-01239 1992/11/12 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits 11/92 water level data submitted by Geowest Group, w/attch 2171 2 1105 0218-92363 1992/11/16 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Transmits approval pages for 10/92 Sampling & analysis plan (SAP), monitoring well installation, groundwater monitoring program, w/attch 2172 2 1109 0218-92365 1992/11/17 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits 1 copy of survey results for monitor wells PG-1LA through PG-27UA, w/attch 2173 2 1113 0218-92366 1992/11/18 Gary Cline / Malcolm Pirnie, Inc James Nelson / City of Scottsdale, AZ - Dept of Water Resources Technical Memo: Options for monitoring exhaust air quality fr Central GWTF 2174 2 1117 0218-93660 1992/11/23 Vicki O'Meara / US Dept of Justice - Environment & Natural Resources Div - Consent decree #2 - USA v Motorola et al 2175 2 1122 0218-02904 1992/11/24 C H 2 M Hill - Sampling data for round 1 & 2 2176 2 1465 0218-02586 1992/12/00 Environmental Protection Agency - Region 9 - Fact Sheet: EPA signs agreement for soil & shallow groundwater cleanup activities at NIBW 2177 2 1477 0218-01245 1992/12/00 - - Water level data, (12/92 & 2/93), w/TLs 2178 2 1481 0218-93429 1992/12/00 - - Volatile organic compounds (VOCs) in monitoring wells, 12/92 2179 2 1488 0218-93765 1992/12/01 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 11/92 water level measurements, monitor wells of upper, middle & lower alluvium units, w/attch 2180 2 1491 0218-01238 1992/12/07 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Correction of 11/92 water surface elevation value reported for well PG-15UA 2181 2 1508 0218-92373 1992/12/17 Salt River Project - Case narrative for well/sample identification at site 2182 2 1511 0218-02581 1992/12/18 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: 4th quarter water levels for production wells & hydrograhs for 56 MAU/LAU monitor wells, w/attch 2183 2 1513 0218-01237 1992/12/18 GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Quarterly, semi-annual & annual water quality rpts, w/TL 2184 2 1574 0218-01277 1992/12/21 Environmental Protection Agency - Region 9 - Press Release: US EPA announces agreement reached for Superfund site cleanup 2185 2 1656 0218-92375 1992/12/23 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits copies of 10/92 water quality data for NIBW UAU groundwater monitoring program monitor wells, w/attchs 2186 2 1659 0218-01244 1992/12/23 Salt River Project Environmental Protection Agency - Region 9 12/92 water level data for UAU groundwater monitoring program, w/TL 2187 2 1661 0218-93186 1993/01/00 Environmental Protection Agency - Region 9 - Public Notice: Public involvement opportunity, open house 2188 2 1670 0218-92380 1993/01/00 Salt River Project - Volatile organic compounds (VOCs) at IBW monitoring wells, 1/93 2189 2 1673 0218-93799 1993/01/07 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 12/92 groundwater levels at site, w/encl 2190 2 1676 0218-02290 1993/01/14 GeoWest Group, Inc Environmental Protection Agency - Region 9 Water level data for MAU & LAU groundwater monitoring program for 1/93, w/TL 2191 2 1695 0218-92386 1993/01/25 Salt River Project Environmental Protection Agency - Region 9 1/93 water level data for UAU groundwater monitoring program, w/TL 2192 2 1699 0218-93185 1993/01/26 Salt River Project - Water levels fr monitoring wells, (9/92 - 1/93), w/attchs 2193 2 1704 0218-02589 1993/02/01 Hydro Geo Chem, Inc Errol L Montgomery & Assoc, Inc Results of vapor well monitoring, w/TL 2194 2 1747 0218-01248 1993/02/09 Errol L Montgomery & Assoc, Inc - Meeting agenda re vleach modeling, w/questions for discussion 2195 2 1797 0218-93184 1993/02/15 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 3/93, w/attch 2196 2 1801 0218-92389 1993/02/16 Peter Mock / C H 2 M Hill Dan Opalski / Environmental Protection Agency - Region 9 Memo: Literature on organic carbon based sorption of organic compounds relevant to NIBW VLEACH simulations 2197 2 1805 0218-92390 1993/02/17 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits water quality data for NIBW UAU groundwater monitoring program monitor wells, 1/93 (1 copy), w/attchs 2198 2 1809 0218-01278 1993/02/24 Linda Pollock / AZ Office of Attorney General Nancy Lindsey / Environmental Protection Agency - Region 9 Memo: Transmits ADEQ comments on NIBW consent decree, w/attch 2199 2 1811 0218-01346 1993/02/25 Levine-Fricke Environmental Protection Agency - Region 9 Proposal for phase 2, upper alluvial unit (UAU) monitoring wells in monitoring areas A & B, OU2, w/TL & maps 2200 2 1824 0218-01293 1993/03/05 Mike Burns / Metcalf & Eddy, Inc Daniel Opalski / Environmental Protection Agency - Region 9 Monthly progress rpts, (12/4/92 - 3/5/93) 2201 2 1841 0218-02360 1993/03/09 David McKinney / Salt River Project Environmental Protection Agency - Region 9 Case narrative for site sampling, w/attch 2202 2 1852 0218-02270 1993/03/15 Thomas Suriano / Salt River Project Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits case narrative & water quality data fr well E-7UA, w/attchs 2203 2 1881 0218-02102 1993/03/16 Mike Burns / Metcalf & Eddy, Inc George Pogue / Motorola, Inc Ltr: Questions re Central Groundwater Treatment Facility (CGTF) & transmission lines 2204 2 1899 0218-92536 1993/03/17 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re Central Groundwater Treatment Facility (CGTF) air monitoring data (raw treated, reported 3/22/93), w/chain of custody 2205 2 1901 0218-01723 1993/03/17 Samir Badri / AZ Dept of Environmental Quality Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Salt River Project (SRP) proposal to waive VLEACH modeling at area 5B & 9 2206 2 1922 0218-92383 1993/03/18 Dan Opalski / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Response to 2/22/93 Salt River project (SRP) ltr re proposal to forego several calculations at areas 5B & 9 2207 2 1925 0218-92384 1993/03/18 Barbara Goldberg / City of Scottsdale, AZ David Hayes / Latham & Watkins (Attorneys) Ltr: EPA requests that City of Scottsdale pumps certain contaminated wells connected to Central Groundwater Treatment Facility (CGTF) more than others 2208 2 1927 0218-92603 1993/03/29 Samir Badri / AZ Dept of Environmental Quality Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Proposal for phase 2 UAU monitoring wells in monitoring areas A & B of OU2 2209 2 1931 0218-92393 1993/03/31 GeoWest Group, Inc Environmental Protection Agency - Region 9 Quarterly water quality rpt, 3/93, w/TL 2210 2 1933 0218-01269 1993/04/00 - - VOC for NIBW monitoring wells, 4/93 2211 2 2058 0218-92394 1993/04/00 Salt River Project - Volatile organic compounds (VOCs) at IBW monitoring wells, 4/93 2212 2 2061 0218-93800 1993/04/07 Errol L Montgomery & Assoc, Inc - Technical workplan, upper & middle alluvium unit (UAU & MAU) monitor wells, upper alluvium unit remedy monitoring area C, w/map & TL 2213 2 2064 0218-01286 1993/04/08 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 3/93 groundwater levels, w/attch 2214 2 2078 0218-01291 1993/04/08 Samir Badri / AZ Dept of Environmental Quality Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Comments on proposal for phase 2 UAU monitoring wells in monitoring areas A & B, OU2, 2/25/93 2215 2 2098 0218-92396 1993/04/08 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 4/93, w/attch 2216 2 2100 0218-92397 1993/04/21 Dan Opalski / Environmental Protection Agency - Region 9 Leslie Kate / Errol L Montgomery & Assoc, Inc Ltr: Discusses VLEACH modeling calculations 2217 2 2104 0218-92400 1993/04/28 David Stephenson / GeoWest Group, Inc Dan Opalski / Environmental Protection Agency - Region 9 Ltr: Transmits tables & figures summarizing groundwater vs pumped fr production wells for period of 10/92-3/93, w/attch 2218 2 2107 0218-01285 1993/05/00 Salt River Project - Area 9 vadose zone investigation & threat calculations rpt, soil vapor environmental design analysis, w/map 2219 2 2165 0218-01298 1993/05/00 Salt River Project - Area 5B vadose zone investigation & groundwater threat calculation rpts, soil vapor environmental design analysis, w/TL to E Roth fr T Suriano 5/11/93 2220 2 2321 0218-01299 1993/05/07 Bradley Cross / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Comments on proposal phase 2 UAU monitoring wells, OU 2 monitoring areas A & B, w/phase 2 rpt 2221 2 2428 0218-01294 1993/05/10 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 3/93, w/attch 2222 2 2452 0218-92403 1993/05/11 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 4/93 groundwater levels, w/attch 2223 2 2456 0218-01283 1993/05/13 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ - Dept of Water Resources Ltr: Need for exchange of information re City of Scottsdale planned operation of OU, w/ltr to Hayes fr Goldberg 3/25/93 & ltr to Roth J Nelson 3/11/93 2224 2 2476 0218-01281 1993/05/18 - - Groundwater sampling 4/8/1993 2225 2 2487 0218-01295 1993/05/18 Emily Roth / Environmental Protection Agency - Region 9 Bradley Cross / Levine-Fricke Ltr: Approval of phase 2 UAU monitoring well locations for area A & B, w/maps 2226 2 2489 0218-92410 1993/06/04 Emily Roth / Environmental Protection Agency - Region 9 George Pogue / Motorola, Inc Ltr: Proposal for additional area C groundwater monitoring wells 2227 2 2495 0218-92417 1993/06/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) air monitoring data (TCE facility, reported 6/27/94), w/chain of custody 2228 2 2498 0218-01724 1993/06/11 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #1 for central groundwater treatment facility (CGTF), w/TL to E Roth fr W Paiz 6/11/93 & photos 2229 2 2519 0218-01272 1993/06/11 Samir Badri / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Technical workplan for UAU & MAU monitor wells, UAU monitoring area C 2230 2 2543 0218-92419 1993/06/14 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 6/93, w/attch 2231 2 2546 0218-92420 1993/06/30 GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Quarterly & semiannual water quality rpts, w/appendix A & B 2232 3 1 0218-02035 1993/07/06 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #2 for central groundwater treatment facility (CGTF), w/TL to E Roth fr W Paiz 7/6/93 & photos 2233 3 278 0218-01273 1993/07/07 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: Need for area 5A soil vapor monitoring (SVM) well 2234 3 297 0218-92431 1993/07/08 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 6/93 groundwater levels, w/attch 2235 3 300 0218-01270 1993/07/12 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 7/93, w/attch 2236 3 320 0218-92435 1993/07/14 Levine-Fricke Siemens Components, Inc Soil vapor extraction (SVE) design analysis rpt, w/TL to E Roth fr B Cross 7/14/93 2237 3 324 0218-01267 1993/07/21 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #3 for central groundwater treatment facility (CGTF), w/TL to E Roth fr W Paiz 7/21/93 & photos 2238 3 507 0218-01271 1993/08/02 Salt River Project - Drilling for wells PG-33UA, 34UA, 35UA, 36UA, w/lithologic descriptions of drill cuttings, data profil, phase 2 monitoring summry PG-28UA to 36UA 2239 3 524 0218-01284 1993/08/04 Emily Roth / Environmental Protection Agency - Region 9 Tom Suriano / Salt River Project Ltr: Determination ltr for area 5B 2240 3 546 0218-92459 1993/08/05 Environmental Protection Agency - Region 9 - Consent decree #92-2314 PHX PGR, USA v Motorola Inc, et al, w/order granting motion for entry of CD, w/o apps A-E 2241 3 549 0218-01627 1993/08/06 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 7/93 groundwater levels, w/attchs 2242 3 634 0218-01260 1993/08/06 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level rpt for 8/93, w/attch 2243 3 654 0218-92460 1993/08/17 Salt River Project - Groundwater sampling 7/8/1993 2244 3 658 0218-02265 1993/08/17 Anita Pritchard / AZ Dept of Environmental Quality Samir Badri / Environmental Protection Agency - Region 9 Memo: Trip rpt re Pima Park groundwater treatment facility inspection 2245 3 660 0218-92467 1993/08/24 City of Scottsdale, AZ - Dept of Water Resources - Revised air quality monitoring plan for vapor phase GAC contactors of gw treatment plant w/TL to H Chiu fr G Cline 9/1/93 2246 3 664 0218-93664 1993/09/00 - - VOC analysis for monitoring wells 2247 3 668 0218-92471 1993/09/01 Emily Roth / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Determination ltr for area 9, w/mail receipt #P104938423 2248 3 672 0218-92472 1993/09/02 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) air monitoring data (carbon vessels 1 & 2, reported 9/12/94), w/chain of custody 2249 3 676 0218-01725 1993/09/03 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Contour maps of 9/93 groundwater levels, w/attchs 2250 3 687 0218-01259 1993/09/03 Emily Roth / Environmental Protection Agency - Region 9 Bradley Cross / Levine-Fricke Ltr: Approval of 8/16/93 workplan with amended well locations 2251 3 706 0218-92473 1993/09/09 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #4, Scottsdale Central GWTF, 7/8/93 - 9/9/93 2252 3 708 0218-02400 1993/09/10 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits financial responsibility statement, w/attch 2253 3 725 0218-92469 1993/09/13 Thomas Suriano / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt, phase 2 monitor well installation 2254 3 731 0218-92480 1993/09/13 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for 9/93, w/attch 2255 3 734 0218-92481 1993/09/30 South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Quarterly water quality rpt, w/TL fr D Stephenson to E Roth 2256 3 738 0218-02070 1993/09/30 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits financial responsibility statement, w/attch 2257 3 905 0218-92470 1993/10/00 - - Water levels for monitoring wells 2258 3 908 0218-92488 1993/10/00 - - Concentration of TCE in lower alluvium unit (LAU) & middle alluvium unit (MAU) 2259 3 911 0218-93503 1993/10/08 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits maps of 9/93 groundwater levels, w/attchs 2260 3 914 0218-01256 1993/10/13 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 10/93, w/attch 2261 3 934 0218-92492 1993/10/14 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: EPA approval of area 7 soil vapor extraction (SVE) design analysis (RD subsequent start) 2262 3 938 0218-92436 1993/10/14 Andy Bain / Environmental Protection Agency - Region 9 Scott Cope, resident / City of Scottsdale, AZ Ltr: Response to ltr re McKellip Lake (redacted, FOIA ex 6) 2263 3 943 0218-93971 1993/10/15 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #5 for Scottsdale OU Central GWTF w/TL to E Roth fr W Paiz 10/14/93 2264 3 947 0218-02213 1993/10/20 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) air monitoring data (treated & untreated air, reported 11/2/93) 2265 3 969 0218-01721 1993/10/21 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: EPA approval of area 7 soil vapor extraction (SVE) design analysis (RD subsequent start) 2266 3 974 0218-92437 1993/10/25 Gwendolyn Eng / US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits site review & update (SRU) rpt, 9/29/93, w/ltr to V Dunn & maps 2267 3 979 0218-01357 1993/10/26 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) air monitoring data (carbon contractor-raw, reported 11/2/93) 2268 3 998 0218-01722 1993/10/29 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits bi-annual rpt re production well pumpage data, 4/93-9/93, w/maps 2269 3 1003 0218-01249 1993/11/08 George Pogue / Motorola, Inc Roberta Gotlieb, resident Ltr: Evaluation of site reconnaissance investigation residence foundation for residence in Scottsdale, w/encl (redacted, FOIA ex 6) 2270 3 1041 0218-02873 1993/11/09 Thomas Suriano / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits results of survey for phase 2 monitoring well, w/attch 2271 3 1048 0218-92501 1993/11/10 Emily Roth / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Approval to Abandon SVM wells at areas 5B & 9 2272 3 1053 0218-92502 1993/11/12 Emily Roth / Environmental Protection Agency - Region 9 Dan Opalski / Environmental Protection Agency - Region 9 Memo: NIBW area 7 meeting with Siemens on voluntary action (privileged, FOIA ex 5) 2273 3 1055 0218-02888 1993/11/16 George Pogue / Motorola, Inc Distribution Memo: Transmits directory of NIBW monitor well locations, w/attch 2274 3 1057 0218-01321 1993/11/18 Larry Person / Maricopa County, AZ - Air Pollution Control City of Scottsdale, AZ List of permit conditions, 9/23/93 & invoicefor installation permit 2275 3 1064 0218-93676 1993/11/23 C H 2 M Hill Environmental Protection Agency - Region 9 Site observation rpt #6 for Scottsdale OU Central GWTF w/TL to E Roth fr W Paiz 2276 3 1068 0218-02212 1993/11/24 Lisa Hanusiak / I C F Technology, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Quarterly & semi-annual water quality rpts (QAMS doc control #20AZ007093HJF1) 2277 3 1087 0218-01263 1993/11/24 Thomas Suriano / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Request for certifications of completion of vadose zone work for area 5B & area 9, w/abandonment diagrams soil vapor monitor well 5B & 9 2278 3 1103 0218-92505 1993/12/00 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Water quality data, 4th quarter, semi-annual & annual rpts for 1993, v1 of 2 (maps, tables & graphics), w/TL 12/01/93 2279 3 1109 0218-01368 1993/12/00 South Pass Resources, Inc - Water quality data, 4th quarter, semi-annual & annual analytical results, v2, appendix B 2280 3 1238 0218-02103 1993/12/00 Salt River Project - Volatile organic compounds (VOCs) at monitoring wells 2281 3 1240 0218-02264 1993/12/00 - - Volatile organic compounds (VOCs) in monitoring wells for 10/93 2282 3 1403 0218-93325 1993/12/01 South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Quarterly, semi-annual, & annual water quality rpts 2283 3 1406 0218-02068 1993/12/01 Maricopa County, AZ - Environmental Services Dept City of Scottsdale, AZ Installation permit for equipment at NE Thomas Rd & 86 St, Scottsdale 2284 3 1534 0218-93666 1993/12/03 Willie Paiz / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits information re water supply - distribution, w/attchs 2285 3 1536 0218-92564 1993/12/07 Andy Bain / Environmental Protection Agency - Region 9 Roger Klinger, resident / City of Scottsdale, AZ Ltr: Upcoming community relations & press activities for opening of groundwater treatment facilities 2286 3 1542 0218-93178 1993/12/09 - Environmental Protection Agency - Region 9 Groundwater sampling data 10/1993 2287 3 1545 0218-02253 1993/12/09 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Request for Scottsdale water usage data 2288 3 1547 0218-92510 1993/12/10 Levine-Fricke Siemens Components, Inc Soil vapor extraction (SVE) design rpt, area 7 2289 3 1550 0218-01258 1993/12/13 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits survey results & water level data for monitor wells installed in UAU area C 2290 3 1612 0218-93179 1993/12/14 Ronald DeWitt / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Oversight for 9/93 NIBW monitoring round conducted by South Pass Resources (SPR) 2291 3 1615 0218-01195 1993/12/14 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 11/93 groundwater levels, w/attchs 2292 3 1628 0218-01254 1993/12/14 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 12/93 2293 3 1642 0218-92511 1993/12/15 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits summary of development & sampling activities for upper alluvium unit monitor well PG-37UA 2294 3 1646 0218-01349 1993/12/16 Thomas Suriano / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water quality data for NIBW UAU groundwater monitoring program monitoring wells, w/attchs 2295 3 1660 0218-01308 1993/12/16 Emily Roth / Environmental Protection Agency - Region 9 Thomas Suriano / Salt River Project Ltr: Certification of completion of vadose zone work for area 5B & 9 2296 3 1662 0218-92463 1993/12/17 Emily Roth / Environmental Protection Agency - Region 9 Addressees Ltr: Public mtg 1/25/94, gw treatment plant press event/open house 2/11-12/94 & EPA sign requirement 2297 3 1665 0218-02205 1993/12/21 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits monitor & production well hydrographs, w/attch 2298 3 1685 0218-01305 1993/12/22 Errol L Montgomery & Assoc, Inc - Vadose zone investigation & groundwater threat calculations summary rpt, area 5C, w/maps & TL to E Roth fr L Katz 12/22/93 2299 3 1746 0218-01306 1993/12/28 Levine-Fricke Siemens Components, Inc Soil vapor extraction design analysis rpt, area 8, w/TL to E Roth fr B Cross 12/28/93 2300 3 1821 0218-01309 1993/12/29 Samir Badri / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Technical comments re soil vapor extraction (SVE) design rpt, area 7, 12/10/93, w/comments 2301 3 2045 0218-92476 1994/00/00 Mike Burns / Metcalf & Eddy, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpts for 10-12/92, 1-12/93, 1-3/94 2302 3 2049 0218-01351 1994/00/00 Salt River Project Environmental Protection Agency - Region 9 Water quality data, 2/94, 4/94, 7/94, w/TLs 2303 3 2091 0218-01387 1994/00/00 Errol L Montgomery & Assoc, Inc Environmental Protection Agency - Region 9 Oversize Maps (3): Concentrations of TCE in upper, middle, & lower alluvium unit 10/1993, 38.5 in x 24 in, 1 in = 1000 ft 2304 3 2093 0218-02171 1994/01/04 Mike Burns / Metcalf & Eddy, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Monthly progress rpt for 11/93 & 12/93 2305 3 2098 0218-93532 1994/01/06 James Nelson / City of Scottsdale, AZ George Pogue / Motorola, Inc Ltr: Conversation re City acceptance of central groundwater treatment facility (CGTF) 2306 3 2104 0218-92515 1994/01/10 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 12/93 groundwater levels, w/attchs 2307 3 2106 0218-01350 1994/01/10 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for MAU & LAU groundwater monitoring program for 1/94, w/attch 2308 3 2126 0218-92521 1994/01/26 Barbara Goldberg / City of Scottsdale, AZ - Office of the City Attorney Marti Black / Environmental Protection Agency - Region 9 Ltr: Request for extension of treatment plant work schedule 2309 3 2130 0218-02641 1994/01/27 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Completion of NIBW treatment plant, w/rpt of completion for City of Scottsdale central groundwater treatment facility (CGTF) 2310 3 2133 0218-01311 1994/01/31 George Pogue / Motorola, Inc Distribution Ltr: Transmits corrected directory of NIBW monitor well locations, w/attch 2311 3 2150 0218-01315 1994/02/03 David McKinney / Environmental Management Systems, Inc - Monitoring well sampling data 2312 3 2157 0218-01317 1994/02/03 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/21/94) 2313 3 2159 0218-01465 1994/02/04 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/21/94) 2314 3 2166 0218-01466 1994/02/07 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/21/94) 2315 3 2173 0218-01467 1994/02/07 Emily Roth / Environmental Protection Agency - Region 9 Barbara Goldberg / City of Scottsdale, AZ Ltr: Response to 1/27/94 meeting re extension of work schedule at ground water treatment facility 2316 3 2179 0218-93201 1994/02/08 Emily Roth / Environmental Protection Agency - Region 9 Brad Cross / Levine-Fricke Ltr: EPA approval & comments on area 7 soil vapor extraction (SVE) system design, w/ADEQ ltr of comments, 12/29/93 2317 3 2183 0218-01316 1994/02/08 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/21/94) 2318 3 2190 0218-01468 1994/02/09 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/24/94) 2319 3 2197 0218-01469 1994/02/10 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/24/94) 2320 3 2204 0218-01470 1994/02/11 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/24/94) 2321 3 2211 0218-01471 1994/02/14 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/24/94) 2322 3 2218 0218-01472 1994/02/15 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/23/94) 2323 3 2225 0218-01473 1994/02/16 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/23/94) 2324 3 2232 0218-01474 1994/02/17 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/2/94) 2325 3 2239 0218-01475 1994/02/18 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/23/94) 2326 3 2246 0218-01476 1994/02/19 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/4/94) 2327 3 2253 0218-01477 1994/02/20 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/4/94) 2328 3 2260 0218-01478 1994/02/21 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/4/94) 2329 3 2267 0218-01479 1994/02/22 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/28/94) 2330 3 2274 0218-01480 1994/02/23 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/4/94) 2331 3 2281 0218-01481 1994/02/24 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2332 3 2288 0218-01482 1994/02/25 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2333 3 2295 0218-01483 1994/02/26 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2334 3 2302 0218-01484 1994/02/27 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2335 3 2309 0218-01485 1994/02/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2336 3 2316 0218-01486 1994/03/00 South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Quarterly water quality rpt, w/TL to E Roth fr D Stephenson 3/29/94, w/maps 2337 3 2323 0218-01320 1994/03/01 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2338 4 1 0218-01487 1994/03/01 Emily Roth / Environmental Protection Agency - Region 9 Brad Cross / Levine-Fricke Ltr: Comments & approval of 12/23/93 workplan to extract & treat upper alluvial unit (UAU) groundwater, area 7, w/measured water level elevations 2339 4 8 0218-92522 1994/03/02 Westech Laboratories Inc Michelle Dehann / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2340 4 14 0218-01527 1994/03/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/18/94) 2341 4 23 0218-01488 1994/03/03 Roger Klingler / City of Scottsdale, AZ - Dept of Water Resources George Pogue / N I B W Participating Cos Ltr: Items to be completed prior to 3/18/94 for City of Scottsdale to formally accept groundwater treatment facility 2342 4 30 0218-93808 1994/03/04 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2343 4 35 0218-01489 1994/03/05 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/18/94) 2344 4 42 0218-01490 1994/03/06 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2345 4 49 0218-01491 1994/03/07 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/18/94) 2346 4 56 0218-01492 1994/03/08 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/15/94) 2347 4 63 0218-01493 1994/03/09 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2348 4 70 0218-01494 1994/03/10 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2349 4 77 0218-01495 1994/03/10 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: EPA approval & comments on area 8 soil vapor extraction (SVE) design analysis (RD subsequent start, OU 06, RD 04), w/ADEQ ltr of comments, 3/1/94 2350 4 84 0218-92524 1994/03/10 Brbara Goldberg / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Completion & start-up activities at central groundwater treatment facility (CGTF) 2351 4 90 0218-92532 1994/03/11 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2352 4 94 0218-01496 1994/03/12 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/24/94) 2353 4 101 0218-01497 1994/03/13 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/24/94) 2354 4 108 0218-01498 1994/03/14 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/18/94) 2355 4 115 0218-01499 1994/03/14 Marty Sauerzopf / Scottsdale Progress - Newsclip: Scottsdale's pollution solution, groundwater treatment may solve decade-old problem 2356 4 122 0218-92533 1994/03/15 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2357 4 125 0218-01500 1994/03/16 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2358 4 131 0218-01501 1994/03/17 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/29/94) 2359 4 138 0218-01502 1994/03/18 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/31/94) 2360 4 145 0218-01503 1994/03/18 Jim Nelson / City of Scottsdale, AZ - Notice of final acceptance for central groundwater treatment facility (CGTF), w/TL to E Roth fr B Goldberg 3/24/94 2361 4 152 0218-92539 1994/03/19 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/31/94) 2362 4 155 0218-01504 1994/03/20 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/31/94) 2363 4 162 0218-01505 1994/03/21 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/31/94) 2364 4 169 0218-01506 1994/03/21 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transfer of central groundwater treatment plant (CGTF) to City of Scottsdale, w/ltr to J Lathan-Maxwell fr B Goldberg 3/18/94 2365 4 176 0218-92540 1994/03/21 Anthony Garvin / Brobeck, Phleger & Harrison (Attorneys) Martha Black / Environmental Protection Agency - Region 9 Ltr: Comments re transfer of groundwater treatment plant to City of Scottsdale 2366 4 182 0218-93690 1994/03/22 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/31/94) 2367 4 185 0218-01507 1994/03/23 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/30/94) 2368 4 193 0218-01508 1994/03/24 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/5/94), w/chain of custody 2369 4 200 0218-01509 1994/03/25 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/13/94) 2370 4 208 0218-01510 1994/03/26 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/13/94) 2371 4 215 0218-01511 1994/03/27 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/13/94) 2372 4 222 0218-01512 1994/03/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/13/94) 2373 4 229 0218-01513 1994/03/29 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/4/94), w/chain of custody 2374 4 236 0218-01514 1994/03/30 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits rpt of completion for central groundwater treatment facility (CGTF), w/encls 2375 4 244 0218-01325 1994/03/30 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/12/94), w/chain of custody 2376 4 256 0218-01515 1994/03/30 James McVeigh / Paradise Valley Water Co Emily Roth / Environmental Protection Agency - Region 9 Ltr: Potential threat of contamination posed by NIBW 2377 4 265 0218-92550 1994/03/30 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Updated combined NIBW groundwater monitoring program 2378 4 268 0218-92579 1994/03/31 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/15/94) 2379 4 274 0218-01516 1994/03/31 Jannie Lathan-Maxwell / Motorola, Inc Roger Klingler / City of Scottsdale, AZ - Dept of Water Resources Ltr: Thank you ltr for transfer & acceptance of central groundwater treatment facility (CGTF) 2380 4 281 0218-92372 1994/03/31 Emily Roth / Environmental Protection Agency - Region 9 George Pogue / Motorola, Inc Ltr: Acceptance of central groundwater treatment facility (CGTF), start of phase B & actions for issuance of certification of completion of plant 2381 4 283 0218-92547 1994/04/01 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/15/94) 2382 4 286 0218-01517 1994/04/03 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/15/94) 2383 4 293 0218-01519 1994/04/04 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 3/94 groundwater levels, w/attch 2384 4 300 0218-01355 1994/04/04 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/15/94) 2385 4 313 0218-01520 1994/04/04 Emily Roth / Environmental Protection Agency - Region 9 George Pogue / Motorola, Inc Ltr: Review & comments on vadose zone investigation of groundwater threat calculation rpt, area 5C, 12/22/93 2386 4 320 0218-92549 1994/04/05 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/19/94) 2387 4 322 0218-01521 1994/04/06 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/20/94) 2388 4 329 0218-01522 1994/04/07 Barbara Goldberg / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Question re whether EPA considers 5 parts per billion of TCE to be safe level for drinking water 2389 4 336 0218-92575 1994/04/09 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/22/94) 2390 4 338 0218-01553 1994/04/10 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/22/94) 2391 4 341 0218-01679 1994/04/11 Errol L Montgomery & Assoc, Inc - Map: Results for shallow soil gas investigations & locations for VLEACH polygons & associated groundwater mixing cell, Area 12 2392 4 344 0218-93525 1994/04/12 Errol L Montgomery & Assoc, Inc Environmental Protection Agency - Region 9 Vadose zone investigation & groundwater threat calculations rpt, area 12, w/TL to E Roth fr R DeWitt, tables, maps, apps A - C 2393 4 347 0218-01330 1994/04/13 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 4/19/94) 2394 4 494 0218-01523 1994/04/22 City of Scottsdale, AZ - Memo: Neighborhood open house & public tours for central groundwater treatment facility (CGTF) 2395 4 501 0218-92557 1994/04/24 James McVeigh / Paradise Valley Water Co Emily Roth / Environmental Protection Agency - Region 9 Ltr: Thank you for arranging meeting with SRP 2396 4 503 0218-92555 1994/04/26 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/5/94) 2397 4 505 0218-01683 1994/04/26 Emily Roth / Environmental Protection Agency - Region 9 File Memo: Technical meeting on 4/21/94, w/encl 2398 4 508 0218-92560 1994/04/28 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits bi-annual rpt, production well pumpage data, 10/93 - 3/94, w/maps 2399 4 512 0218-01354 1994/04/29 James Lutton / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 2/8/94 EPA comments providing approval of area 7 soil vapor extraction (SVE) rpt, w/o plans & schedule 2400 4 569 0218-92552 1994/04/29 Barbara Goldberg / City of Scottsdale, AZ Mardi Black / Environmental Protection Agency - Region 9 Ltr: Central groundwater treatment facility (CGTF) 2401 4 573 0218-92556 1994/05/04 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 4/94 groundwater levels, w/attch 2402 4 575 0218-01353 1994/05/05 George Pogue / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits letter to J McVeigh re lab results for 4/94 water samples taken fr NIBW wells #PG-1LA & PG2LA, w/attchs 2403 4 591 0218-01352 1994/05/10 Jim McVeigh / American Water Works Service Co, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Analytical results of 5/6/94 sampling of monitoring wells PG-2LA, PG-1LA & PVWC well #15 2404 4 605 0218-01344 1994/05/11 Emily Roth / Environmental Protection Agency - Region 9 Barbara Goldberg / City of Scottsdale, AZ Ltr: Response to 4/7/94 ltr re maximum contaminant level (MCL) for trichloroethylene (TCE) 2405 4 614 0218-92572 1994/05/12 Levine-Fricke Siemens Components, Inc Vadose zone investigation & groundwater threat estimate rpt for area 6, w/maps 2406 4 616 0218-01356 1994/05/12 James McVeigh / American Water Works Service Co, Inc C Close / American Water Works Service Co, Inc Memo: Update after 5/2/94 meeting with Participating Group Co (PGC) 2407 4 777 0218-92584 1994/05/17 George Pogue / Motorola, Inc James McVeigh / American Water Works Service Co, Inc Ltr: Transmits Participating Companies response ltr re results of split samples taken by American Water Works Service Company (AWWS), w/attch 2408 4 779 0218-01359 1994/05/24 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/7/94), w/chain of custody form 2409 4 786 0218-01596 1994/05/26 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/14/94), w/chain of custody form 2410 4 799 0218-01587 1994/05/26 George Pogue / Motorola, Inc James Campbell / Paradise Valley Water Co Ltr: To schedule meetings between North Indian Bend Participating Co (NIBWPC) & Paradise Valley Water Co (PVWC) 2411 4 810 0218-92596 1994/05/27 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 5/94 groundwater levels, w/attch 2412 4 813 0218-01360 1994/05/27 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/14/94), w/chain of custody form 2413 4 826 0218-01583 1994/05/28 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/14/94), w/chain of custody form 2414 4 833 0218-01585 1994/05/29 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/14/94), w/chain of custody form 2415 4 844 0218-01584 1994/05/30 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/14/94), w/chain of custody form 2416 4 855 0218-01586 1994/05/31 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/7/94), w/chain of custody form 2417 4 870 0218-01597 1994/06/01 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/7/94), w/chain of custody form 2418 4 878 0218-01598 1994/06/02 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/7/94), w/chain of custody form 2419 4 890 0218-01580 1994/06/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/7/94), w/chain of custody form 2420 4 898 0218-01579 1994/06/04 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/9/94), w/chain of custody form 2421 4 906 0218-01578 1994/06/05 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/9/94), w/chain of custody form 2422 4 912 0218-01588 1994/06/06 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/9/94), w/chain of custody form 2423 4 918 0218-01589 1994/06/07 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/10/94), w/chain of custody form 2424 4 924 0218-01595 1994/06/08 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/21/94), w/chain of custody form 2425 4 930 0218-01590 1994/06/18 Heidi Horten / South Pass Resources, Inc N I B W Participating Cos Phase A summary rpt for period of 10/1/90 - 3/18/94, w/TL to E Roth fr D Stephenson 2426 4 935 0218-01331 1994/06/21 Anne Wendell / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Information re recent interaction with Paradise Valley Town Council 2427 4 1096 0218-92458 1994/06/23 Julie Alvarado / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits information, agenda & minutes for 6/23/94 Paradise Valley Town council meeting, w/attchs 2428 4 1099 0218-01151 1994/06/24 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/16/94), w/chain of custody form 2429 4 1109 0218-01570 1994/06/25 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/16/94), w/chain of custody form 2430 4 1116 0218-01568 1994/06/26 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/16/94), w/chain of custody form 2431 4 1123 0218-01577 1994/06/27 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/16/94), w/chain of custody form 2432 4 1130 0218-01569 1994/06/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/7/94), w/chain of custody form 2433 4 1137 0218-01601 1994/06/28 M Nazir / Jaeger Products, Inc Jim Kessler / Martin K Eby Construction Co Ltr: Recent airstripper problems, w/fax TL fr J Kessler to G Pogue 6/30/94 2434 4 1143 0218-93257 1994/06/29 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/7/94), w/chain of custody form 2435 4 1147 0218-01545 1994/07/05 Hulie Alvarado / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits flyer given to Scottsdale residents who are near where well PG-40LA will be drilled, w/attchs 2436 4 1153 0218-92491 1994/07/06 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/11/94), w/chain of custody form 2437 4 1157 0218-01546 1994/07/07 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 6/94 groundwater levels, w/attch 2438 4 1163 0218-01361 1994/07/07 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/30/94), w/chain of custody form 2439 4 1183 0218-01572 1994/07/08 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/30/94), w/chain of custody form 2440 4 1192 0218-01573 1994/07/08 James Lutton / Levine-Fricke Emily roth / Environmental Protection Agency - Region 9 Ltr: Operation of area 7 soil vapor extraction (SVE) & treatment system 2441 4 1199 0218-92302 1994/07/08 James Lutton / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Operation of area 7 soil vapor extraction (SVE) & treatment system, w/TL to E Roth fr J Lutton 7/8/94 2442 4 1201 0218-92591 1994/07/09 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/30/94), w/chain of custody form 2443 4 1204 0218-01576 1994/07/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/30/94), w/chain of custody form 2444 4 1209 0218-01575 1994/07/11 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/30/94), w/chain of custody form 2445 4 1216 0218-01574 1994/07/11 Emily Roth / Environmental Protection Agency - Region 9 James Lutton / Levine-Fricke Ltr: EPA approval & comments on area 8 soil vapor extraction (SVE) design rpt, 5/6/94 (RD complete, RA subsequent start, OU 06, RD 04, RA 04) 2446 4 1223 0218-92588 1994/07/12 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/5/94), w/chain of custody form 2447 4 1226 0218-01593 1994/07/12 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/15/94), w/chain of custody form 2448 4 1232 0218-01599 1994/07/12 Emily Roth / Environmental Protection Agency - Region 9 Michele Robertson / AZ Dept of Environmental Quality Memo: Technical meeting of 7/15/94 2449 4 1236 0218-92526 1994/07/13 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 7/15/94), w/chain of custody form 2450 4 1238 0218-01600 1994/07/13 Emily Roth / Environmental Protection Agency - Region 9 James Lutton / Levine-Fricke Ltr: Startup of area 7 soil vapor extraction (SVE) 2451 4 1244 0218-92590 1994/07/13 Bradley Cross / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Area 7 groundwater extraction & treatment, w/TL 2452 4 1247 0218-92614 1994/07/14 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 7/14, 8/18/94), w/samples of 7/15/94 2453 4 1251 0218-01374 1994/07/14 Jim Nelson / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Request that NIBWPC take lead in determining cause of problems at GWTF & make whatever repairs necessary, w/attchs 2454 4 1260 0218-02117 1994/07/14 Ronald DeWitt / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: To provide info re abandonment plan for SVM well 5C-A & to request to issue certificate of completion for vadose zone inves conducted at area 5C 2455 4 1305 0218-92615 1994/07/14 Jim Nelson / City of Scottsdale, AZ George Pogue / N I B W Participating Cos Ltr: Request that NIBW PC fix problems so that facility consistently achieves TCE removal efficiency of 99.8% 2456 4 1309 0218-93261 1994/07/15 Emily Roth / Environmental Protection Agency - Region 9 Ronald DeWitt / Errol L Montgomery & Assoc, Inc Ltr: EPA ltr of determination re soil vapor extraction (SVE) at area 12 2457 4 1312 0218-92434 1994/07/16 Emily Roth / Environmental Protection Agency - Region 9 Jannie Lathan-Maxwell / Environmental Protection Agency - Region 9 Ltr: Groundwater monitoring program, w/ltr of 3/30/94 to E Roth fr G Pogue re updated combined gw program 2458 4 1315 0218-01362 1994/07/16 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/19/94), w/chain of custody 2459 4 1323 0218-01524 1994/07/17 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/19/94), w/chain of custody form 2460 4 1330 0218-01554 1994/07/18 Emily Roth / Environmental Protection Agency - Region 9 Jannie Lathan-Maxwell / N I B W Participating Cos Ltr: Status of central groundwater treatment facility 2461 4 1339 0218-93249 1994/07/19 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/18/94), w/chain of custody form 2462 4 1342 0218-01383 1994/07/20 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/18/94), w/chain of custody form 2463 4 1349 0218-01548 1994/07/21 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/16/94) w/samples of 7/22 - 7/24/94 2464 4 1356 0218-01384 1994/07/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/16/94), w/chain of custody form 2465 4 1362 0218-01550 1994/07/22 Mike Grigorieff / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Review of potential scaling problems at GWTF 2466 4 1368 0218-93229 1994/07/23 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/16/94), w/chain of custody form 2467 4 1371 0218-01551 1994/07/24 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/16/94), w/chain of custody form 2468 4 1377 0218-01549 1994/07/25 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/16/94), w/chain of custody form 2469 4 1383 0218-01552 1994/07/26 Errol L Montgomery & Assoc, Inc - Summary rpt for vadose zone investigation & groundwater threat calculations, area 11 2470 4 1390 0218-01409 1994/07/26 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/2/94), w/chain of custody form 2471 4 1483 0218-01581 1994/07/27 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/2/94), w/chain of custody form 2472 4 1492 0218-01582 1994/07/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/3/94), w/chain of custody form 2473 4 1513 0218-01381 1994/07/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/3/94), w/chain of custody 2474 4 1524 0218-01525 1994/07/29 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/4/94), w/chain of custody form 2475 4 1536 0218-01594 1994/07/30 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 08/23/94), w/chain of custody 2476 4 1569 0218-01379 1994/07/31 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/23/94), w/chain of custody form 2477 4 1577 0218-01559 1994/08/01 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 7/94 groundwater levels, w/attch 2478 4 1585 0218-01304 1994/08/01 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/23/94), w/chain of custody form 2479 4 1598 0218-01560 1994/08/01 Joe O'Haver / Salt River Project Bobbi Gotlieb, resident / City of Scottsdale, AZ Ltr: Response to concerns & questions re Salt River Project (SRP) role in water quality monitoring project underway adjacent to Gotlieb residence 2480 4 1606 0218-92616 1994/08/02 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 8/9/94), w/chain of custody 2481 4 1609 0218-01526 1994/08/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/9/94), w/chain custody form 2482 4 1616 0218-01382 1994/08/04 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/10/94), w/chain of custody form 2483 4 1635 0218-01377 1994/08/05 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 8/10/94), w/chain custody form 2484 4 1655 0218-01385 1994/08/09 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 9/1/94), w/chain of custody form 2485 4 1680 0218-01380 1994/08/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/1/94), w/chain of custody form 2486 4 1688 0218-01547 1994/08/11 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 12/9/94) 2487 4 1696 0218-01684 1994/08/12 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/15/94) 2488 4 1703 0218-01685 1994/08/13 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/15/94) 2489 4 1710 0218-01686 1994/08/14 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/15/94) 2490 4 1722 0218-01687 1994/08/15 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/15/94) 2491 4 1735 0218-01688 1994/08/15 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) air monitoring data (carbon vessels 1, 2 & 3, reported 8/29/94), w/chain of custody 2492 4 1748 0218-01726 1994/08/16 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 12/8/94) 2493 4 1786 0218-01689 1994/08/17 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 12/8/94) 2494 4 1805 0218-01690 1994/08/18 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 12/8/94) 2495 4 1824 0218-01691 1994/08/18 Emily Roth / Environmental Protection Agency - Region 9 Jannie Lathan-Maxwell / Motorola, Inc Ltr: Status of central groundwater treatment facility (CGTF) 2496 4 1843 0218-92597 1994/08/19 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 10/5/94) 2497 4 1846 0218-01692 1994/08/20 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 10/5/94) 2498 4 1865 0218-01693 1994/08/21 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94 & 10/5/94) 2499 4 1884 0218-01694 1994/08/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 5/23/94) 2500 4 1902 0218-01695 1994/08/22 Joel Peterson / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Status on central groundwater treatment facility (CGTF) 2501 4 1908 0218-93295 1994/08/23 Westech Laboratories Inc Michelle DeHaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility water quality data (reported 10/7/94), w/TL to M DeHaan fr A Nichols 11/21/94 2502 4 1913 0218-01462 1994/08/24 Westech Laboratories Inc Michelle DeHaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/7/94), w/chain of custody 2503 4 1921 0218-01463 1994/08/25 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/15/94) 2504 4 1929 0218-01696 1994/08/25 Jannie Lathan-Maxwell / N I B W Participating Cos Jim Nelson / City of Scottsdale, AZ - Dept of Water Resources Ltr: Response to City of Scottsdale request for technical assistance re improving operational performance of central groundwater treatment (CGTF) 2505 4 1932 0218-92598 1994/08/25 Jannie Lathan-Maxwell / Motorola, Inc Roger Klingler / City of Scottsdale, AZ - Dept of Water Resources Ltr: Proposal submitted by PRP for enhanced containment of VOC plume, w/attchs 1-2 (map & technical justification) 2506 4 1937 0218-92599 1994/08/29 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 9/6/94), w/chain of custody form 2507 4 1943 0218-01375 1994/08/30 Westech Laboratories Inc Michele DeHaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/30/94), w/TL to M DeHaan fr A Nichols 11/21/94 & rpt 2508 4 1951 0218-01452 1994/08/31 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 8/94 groundwater levels, w/attchs 2509 4 1958 0218-01363 1994/08/31 Westech Laboratories Inc Michele Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/30/94), w/chain of custody 2510 4 1975 0218-01451 1994/09/01 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/12/94) 2511 4 1983 0218-01426 1994/09/02 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/12/94), w/chain of custody 2512 4 1990 0218-01427 1994/09/03 Westech Laboratories Inc City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 9/26/94), w/TL to J Nelson fr G Graham 12/15/9 2513 4 1998 0218-01398 1994/09/05 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/26/94) 2514 4 2022 0218-01697 1994/09/06 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/26/94) 2515 4 2027 0218-01698 1994/09/07 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/26/94) 2516 4 2036 0218-01699 1994/09/08 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/18/94) 2517 4 2043 0218-01700 1994/09/09 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/18/94) 2518 4 2050 0218-01701 1994/09/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/18/94) 2519 4 2057 0218-01702 1994/09/11 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/18/94) 2520 4 2064 0218-01703 1994/09/12 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/18/94) 2521 4 2071 0218-01704 1994/09/13 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 9/19/94), w/chain of custody form 2522 4 2076 0218-01378 1994/09/14 Levine-Fricke - Installation rpt, groundwater & soil vapor extraction (SVE) & treatment system, area 7, w/tables, maps & appendices 2523 4 2084 0218-01364 1994/09/14 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 9/19/94), w/chain of custody form 2524 4 2464 0218-01558 1994/09/14 Emily Roth / Environmental Protection Agency - Region 9 Jannie Lathan-Maxwell / Motorola, Inc Ltr: Comments to presentation re proposed enhanced capture in NIBW zone of groundwater contamintion & proposed technical remedy for Paradise Valley 2525 4 2471 0218-92617 1994/09/14 Emily Roth / Environmental Protection Agency - Region 9 Jannie Lathan-Maxwell / N I B W Participating Cos Ltr: Followup & response to technical meeting of 8/31/94 re performance problems at central groundwater treatment facility, w/attch 2526 4 2474 0218-93259 1994/09/15 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/10/94) 2527 4 2478 0218-01415 1994/09/16 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/10/94) 2528 4 2485 0218-01416 1994/09/17 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/10/94) 2529 4 2492 0218-01417 1994/09/19 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 09/23/94) 2530 4 2499 0218-01705 1994/09/20 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/18/94), w/chain of custody form 2531 4 2506 0218-01562 1994/09/20 Jim Nelson / City of Scottsdale, AZ Jannie Lathan-Maxwell / N I B W Participating Cos Ltr: Request that treatment problems at central groundwater treatment facilty be resolved, w/sampling results 2532 4 2514 0218-93256 1994/09/21 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 10/18/94), w/chain custody form 2533 4 2518 0218-01418 1994/09/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 09/29/94) 2534 4 2528 0218-01706 1994/09/23 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 10/4/94), w/samples of 9/24 - 9/26/94 2535 4 2535 0218-01376

Doc Date Author / Auth. Affiliate Addressee / Addr. Affiliate Subject AR # Roll # Frame # Doc ID 1994/09/24 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/4/94), w/chain of custody form 2536 4 2542 0218-01556 1994/09/25 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/4/94), w/chain of custody form 2537 4 2549 0218-01555 1994/09/26 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/4/94), w/chain of custody form 2538 5 1 0218-01557 1994/09/27 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/22/94) 2539 5 10 0218-01707 1994/09/27 Copper State Analytical Lab, Inc Grace Graham / Westech Laboratories Inc Copper lab rpt for Westech re central groundwater treatment facility (CGTF) water quality data 2540 5 15 0218-01715 1994/09/28 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/22/94) 2541 5 19 0218-01708 1994/09/28 Copper State Analytical Lab, Inc Grace Graham / Westech Laboratories Inc Copper lab rpt for Westech re central groundwater treatment facility (CGTF) water quality data 2542 5 28 0218-01716 1994/09/29 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 10/4/94) 2543 5 32 0218-01709 1994/09/29 Copper State Analytical Lab, Inc Westech Laboratories Inc Copper lab rpt for Westech re central groundwater treatment facility (CGTF) water quality & sample cross ref table, w/TL to J Nelson fr G Graham 2544 5 42 0218-01717 1994/09/30 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps for 9/94 groundwater levels, w/attchs 2545 5 51 0218-01366 1994/09/30 Copper State Analytical Lab, Inc Westech Laboratories Inc Copper lab rpt for Westech re central groundwater treatment facility (CGTF) water quality data & sample cross ref table, w/TL to J Nelson fr G Graham 2546 5 64 0218-01718 1994/10/00 Errol L Montgomery & Assoc, Inc - Map: Groundwater level altitudes for LAU, MAU & UAU 2547 5 76 0218-01405 1994/10/00 Errol L Montgomery & Assoc, Inc - Map: Concentration of TCEs for LAU, MAU & UAU 2548 5 80 0218-01406 1994/10/03 Copper State Analytical Lab, Inc Westech Laboratories Inc Lab rpt for VOC, sampled 10/03/94 2549 5 85 0218-01464 1994/10/05 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits results of chemical analyses for groundwater samples obtained fr lower alluvium unit monitror wells PG-1LA & PG-2LA, 4-8/94, w/attchs 2550 5 98 0218-01371 1994/10/06 Copper State Analytical Lab, Inc Westech Laboratories Inc Copper lab rpt for Westech re central groundwater treatment facility (CGTF) water quality & sample cross ref table, w/TL to M DeHaan fr G Graham 2551 5 110 0218-01719 1994/10/07 Bradley Cross / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Vadose zone investigation results for area 5A w/attchs 2552 5 122 0218-01407 1994/10/13 Samir Badri / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits review & comments on vadose zone investigation & groundwater threat estimate rpt for area 6, 5/12/94, w/attch 2553 5 183 0218-92592 1994/10/17 Bolin Laboratories, Inc Westech Laboratories Inc Bolin lab rpt for Westech re central groundwater treatment facility (CGTF) water quality data (rpt date 10/25/94) 2554 5 187 0218-01720 1994/10/17 Jannie Lathan-Maxwell / N I B W Participating Cos Robert Olmstead / Martin K Eby Construction Co Ltr: Directs required actions for improvement of treatment performance at central groundwater treatment facility 2555 5 190 0218-93260 1994/10/19 Westech Laboratories Inc City of Scottsdale, AZ Transmits 10/12 & 10/13/94 lab rpts for VOC, w/attch 2556 5 193 0218-01454 1994/10/21 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits tables & figures summarizing groundwater vs pumped fr production wells for period 4/94 - 9/94, w/attchs 2557 5 219 0218-01621 1994/10/24 Jannie Lathan-Maxwell / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 9/14/94 ltr re status of on-going investigations/corrective actions at central groundwater treatment facility 2558 5 263 0218-93251 1994/10/27 David McKinney / Salt River Project Dennis Shirley / Salt River Project Memo: Transmits analytical results & chain of custody for groundwater monitoring, w/attchs 2559 5 266 0218-01404 1994/10/28 James Lutton / Levine-Fricke Emily Roth / Environmental Protection Agency - Region 9 Ltr: Request for reduced soil vapor extraction system monitoring frequency at area 8, w/operating data tables for area 7 2560 5 268 0218-01393 1994/10/28 George Maseeh / Malcolm Pirnie, Inc Robert Olmsted / Martin K Eby Construction Co Ltr: Summary of 10/27/94 meeting 2561 5 309 0218-93252 1994/11/00 Motorola, Inc - Agreement between participating companies & Paradise Valley Water Co 2562 5 313 0218-02901 1994/11/02 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/7/94), w/chain of custody form 2563 5 394 0218-01411 1994/11/02 Peterson Joel / Environmental Protection Agency - Region 9 Emily Roth / Environmental Protection Agency - Region 9 Memo: Update on central groundwater treatment facility (CGTF) & water management proposal 2564 5 433 0218-92712 1994/11/02 C H 2 M Hill Environmental Protection Agency - Region 9 Well PG-2LA & COS-75 TCE trend graphs, w/data table to plot TCE concentration over time, w/TL to E Roth fr T Graves 2565 5 437 0218-93110 1994/11/03 Jannie Lathan-Maxwell / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Chronological meetings & discussions between PRP & Paradise Valley Co (PVWC), w/attchs 2566 5 443 0218-01391 1994/11/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/7/94), w/chain of custody form 2567 5 454 0218-01410 1994/11/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/7/94), w/chain of custody form 2568 5 478 0218-01412 1994/11/10 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 10/94 groundwater levels, w/attchs 2569 5 484 0218-01401 1994/11/11 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/30/94) 2570 5 501 0218-01710 1994/11/14 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 11/17/94), w/chain of custody form 2571 5 508 0218-01414 1994/11/14 Grace Graham / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Memo: Transmits Terra Tech lab rpt re aqueous samples, w/attchs 2572 5 518 0218-01461 1994/11/21 Timothy Flood / AZ Dept of Health Services - Div of Disease Prevention Karen Caldwell, resident / City of Scottsdale, AZ Ltr: Response re cancer associated with TCE exposure w/attch (redacted, FOIA ex 6) 2573 5 531 0218-02872 1994/11/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 11/30/94), w/chain of custody 2574 5 543 0218-01450 1994/11/24 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 12/16/94) 2575 5 553 0218-01711 1994/12/02 Emily Roth / Environmental Protection Agency - Region 9 Jim Lutton / Levine-Fricke Ltr: EPA response to 10/28/94 proposal re reduced data acquisition of air flow rates & pressures at area 8 SVE system, w/ltr of comments 12/1/94 2576 5 556 0218-92629 1994/12/05 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps for 11/94 groundwater level measurements for monitor wells of MAU & LAU, w/attchs 2577 5 560 0218-01395 1994/12/05 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 12/14/94), w/chain of custody form 2578 5 573 0218-01396 1994/12/05 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Ground water contour maps for 11/94 water level measurements for monitor wells of UAU, MAU & LAU aquifer units within NIBW study area w/attch 2579 5 581 0218-02030 1994/12/07 Joel Peterson / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits final version of neighborhood notification, delivered door to door, w/attchs 2580 5 594 0218-92634 1994/12/08 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 12/14/94), w/chain of custody form 2581 5 599 0218-01397 1994/12/08 Barbara Goldberg / City of Scottsdale, AZ C Dobal / Motorola, Inc Ltr: Capture alternatives (contaminant plume) 2582 5 607 0218-92638 1994/12/08 David Hayes / Latham & Watkins (Attorneys) Marti Black / Environmental Protection Agency - Region 9 Ltr: Response to 11/21/94 memo re remedial activity at site, w/attch 2583 5 609 0218-93158 1994/12/09 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 12/22/94) 2584 5 614 0218-01712 1994/12/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 12/22/94) 2585 5 627 0218-01713 1994/12/11 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 12/22/94) 2586 5 640 0218-01714 1994/12/13 Emily Roth / Environmental Protection Agency - Region 9 William Munzer / Marro Plating Ltr: EPA determination re vadose zone investigation at area 3 2587 5 652 0218-92637 1994/12/16 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/5/95) 2588 5 655 0218-01422 1994/12/17 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/5/95) 2589 5 662 0218-01423 1994/12/18 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/5/95), w/chain of custody form 2590 5 669 0218-01424 1994/12/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 12/30/94), w/chain of custody form 2591 5 677 0218-01413 1994/12/25 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/11/95) 2592 5 697 0218-01419 1994/12/26 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/11/95), w/chain custoday form 2593 5 706 0218-01420 1994/12/27 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/6/95), w/chain of custody 2594 5 716 0218-01431 1994/12/27 Jim Nelson / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: City of Scottsdale review & comments on central groundwater treatment facility (CGTF) 2595 5 725 0218-92548 1994/12/29 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/6/95), w/chain of custody 2596 5 728 0218-01429 1994/12/30 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/21/95) 2597 5 737 0218-01436 1994/12/31 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/21/95) 2598 5 746 0218-01437 1995/00/00 Errol L Montgomery & Assoc, Inc - Summary of field data update, 6/95 - 10/95, w/TL fr R DeWitt to E Roth 11/9/95 2599 5 755 0218-01797 1995/00/00 City of Scottsdale, AZ - Well 6 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2600 5 873 0218-01919 1995/00/00 City of Scottsdale, AZ - Well 31 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2601 5 875 0218-01920 1995/00/00 City of Scottsdale, AZ - Well 71 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2602 5 877 0218-01921 1995/00/00 City of Scottsdale, AZ - Well 72 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2603 5 879 0218-01922 1995/00/00 City of Scottsdale, AZ - Well 75 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2604 5 881 0218-01923 1995/00/00 City of Scottsdale, AZ - Well 75A sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2605 5 883 0218-01924 1995/00/00 City of Scottsdale, AZ - Well 74 sampling data for 1994 & 1995, central groundwater treatment facility (CGTF) 2606 5 885 0218-01925 1995/01/01 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/21/95) 2607 5 887 0218-01438 1995/01/02 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/21/95), w/chain of custody 2608 5 896 0218-01439 1995/01/03 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/6/95), w/chain of custody 2609 5 907 0218-01430 1995/01/04 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/23/95), w/chain of custody 2610 5 917 0218-01448 1995/01/05 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab re central groundwater treatment facility (CGTF) water quality data (reported 1/13/95), w/chain of custody 2611 5 927 0218-01425 1995/01/05 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected rpts fr Bolin lab, collected 10/14 - 10/16/94, w/attchs 2612 5 937 0218-01457 1995/01/05 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected rpts fr Bolin lab, collected 10/10/94, w/attchs 2613 5 953 0218-01458 1995/01/06 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Review & comments on capture plan for LAU, review of central groundwater treatment facility (CGTF) 2614 5 961 0218-01399 1995/01/06 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/20/95) 2615 5 970 0218-01440 1995/01/06 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected rpts fr Copper State Analytical, collected 9/29, 9/30, 10/29 & 10/30/94, w/attchs 2616 5 979 0218-01456 1995/01/06 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected rpts fr Bolin lab, collected 10/11 - 10/13/94, w/attchs 2617 5 1008 0218-01459 1995/01/06 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected rpts fr Bolin lab, collected 10/7 - 10/9/94, w/attchs 2618 5 1025 0218-01460 1995/01/07 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/20/95) 2619 5 1041 0218-01441 1995/01/08 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/20/95), w/chain of custody 2620 5 1050 0218-01442 1995/01/09 Jack Kepper / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 12/94 groundwater levels for UAU, MAU & LAU, w/attchs 2621 5 1061 0218-01403 1995/01/09 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/13/95), w/chain of custody 2622 5 1079 0218-01428 1995/01/10 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, VOC (reported 1/16/95), w/chain of custody form 2623 5 1089 0218-01421 1995/01/10 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/17/95) 2624 5 1101 0218-01432 1995/01/11 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/17/95) 2625 5 1110 0218-01433 1995/01/12 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/17/95) 2626 5 1119 0218-01434 1995/01/12 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/17/95), w/chain of custody form 2627 5 1128 0218-01563 1995/01/13 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/31/95) 2628 5 1131 0218-01444 1995/01/14 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/31/95) 2629 5 1140 0218-01445 1995/01/15 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/31/95) 2630 5 1149 0218-01446 1995/01/16 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/31/95), w/chain of custody 2631 5 1158 0218-01447 1995/01/16 Jennifer MacSweeney / Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits corrected sample rpts fr Bolin lab, collected 10/17/94, w/attchs 2632 5 1169 0218-01453 1995/01/17 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/23/95), w/chain of custody 2633 5 1177 0218-01435 1995/01/18 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/31/95), w/chain of custody 2634 5 1187 0218-01534 1995/01/19 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/24/95), w/chain of custody 2635 5 1197 0218-01443 1995/01/19 Jim Nelson / City of Scottsdale, AZ Nichols Hazelwood / N I B W Participating Cos Ltr: City of Scottsdale concerns about Participating Companies proposal for enhanced capture 2636 5 1207 0218-92641 1995/01/19 Jim Nelson / City of Scottsdale, AZ Dennis Shirley / Salt River Project Ltr: Participating Companies proposal for enhanced capture, w/o encl 2637 5 1210 0218-92642 1995/01/20 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/8/95) 2638 5 1212 0218-01529 1995/01/21 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/27/95), w/chain of custody 2639 5 1221 0218-01533 1995/01/22 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/8/95), w/chain of custody 2640 5 1230 0218-01532 1995/01/23 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 1/26/95), w/chain of custody 2641 5 1244 0218-01449 1995/01/24 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/8/95), w/chain of custody 2642 5 1251 0218-01531 1995/01/27 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/13/95), w/chain of custody 2643 5 1259 0218-01528 1995/01/29 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/13/95), w/chain of custody form 2644 5 1265 0218-01566 1995/01/30 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/13/95), w/chain of custody form 2645 5 1269 0218-01567 1995/01/31 Jeffrey Zelikson / Environmental Protection Agency - Region 9 - Administrative consent order #95-25 for recovery of costs, w/app A 2646 5 1273 0218-02834 1995/02/01 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/13/95), w/chain of custody form 2647 5 1284 0218-01561 1995/02/02 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/14/95), w/chain of custody 2648 5 1288 0218-01530 1995/02/02 Randolph Brummett / N I B W Participating Cos Barbara Goldberg / City of Scottsdale, AZ Ltr: States positions on issues re central groundwater treatment facility 2649 5 1292 0218-93242 1995/02/03 Jeffrey Meyer / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Vadose zone investigations near UAU groundwater monitor wells ST-1, ST-2 & ST-3, area 12, w/map & diagram 2650 5 1296 0218-01813 1995/02/04 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/14/95), w/chain of custody form 2651 5 1305 0218-01564 1995/02/05 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/14/95), w/chain of custody form 2652 5 1309 0218-01571 1995/02/06 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 2/14/95), w/chain of custody form 2653 5 1313 0218-01565 1995/02/10 Jim Nelson / City of Scottsdale, AZ - Analysis sheets for Scottsdale sample results, TCE treatment plant, w/questions on analyis 2654 5 1317 0218-01615 1995/02/13 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 1/95 groundwater levels, w/attchs 2655 5 1319 0218-01535 1995/02/25 Woodward-Clyde Consultants Nichols Hazelwood / N I B W Participating Cos Compilation of data for City of Scottsdale central groundwater treatment facility (GWTF), w/2/27/95 ltr fr N Hazelwood to L LaPat-Polasko 2656 5 1332 0218-01984 1995/03/00 Salt River Project - Maps: Representative periods of groundwater rise & fall, 1992 & 1995 2657 5 1408 0218-93526 1995/03/03 Emily Roth / Environmental Protection Agency - Region 9 - Technical meeting notes, handouts & attendance list 2658 5 1417 0218-01623 1995/03/07 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 2/95 water level measurements for monitor wells UAU, MAU & LAU, w/attchs 2659 5 1431 0218-01608 1995/03/08 Anita Pritchard / AZ Dept of Environmental Quality Jim Nelson / City of Scottsdale, AZ Ltr: Central groundwater treatment facility (CGTF) 2660 5 1448 0218-92667 1995/03/14 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 3/27/95), w/chain of custody form 2661 5 1451 0218-01591 1995/03/17 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits final results of lab chemical analyses for VOC for gw samples obtained during zonal testing operations at extraction well COS7A w/attch 2662 5 1455 0218-01538 1995/03/22 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Capital Corp Ltr: Determination statement for area 6 2663 5 1479 0218-92662 1995/03/24 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Capital Corp Ltr: Determination statement for area 5A 2664 5 1481 0218-92661 1995/03/28 Phil Whitmore / AZ Dept of Environmental Quality Anita Prichard / AZ Dept of Environmental Quality Memo: Results of quarterly soil vapor sampling at area 7, w/TL to E Roth fr A Pritchard 7/24/95 & encls 2665 5 1483 0218-01677 1995/03/31 Jeffrey Meyer / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Summary of SVME well installation, soil vapor sampling, & soil vapor extraction tests, w/draft schematic diagrams of well construction 2666 5 1507 0218-01812 1995/03/31 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 3/17/95 ltr re central groundwater treatment facility (CGTF) 2667 5 1514 0218-92679 1995/03/31 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 3/17/95 ltr re follow-up to 11/21/94 meeting 2668 5 1517 0218-92682 1995/04/05 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: Determination ltr for area 11, EPA/ADEQ finding of need for additional work, w/map & 10/25/94 comment ltr 2669 5 1520 0218-92686 1995/04/05 Joel Peterson / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Preliminary results of interval sampling at PC-1 (SRP-1) 2670 5 1527 0218-93112 1995/04/12 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 3/95 water level measurements for monitor wells of MAU & LAU, w/attchs 2671 5 1532 0218-01604 1995/04/17 Lynn White / C H 2 M Hill Tim Graves / C H 2 M Hill Ltr: Transmits analytical results & associated quality control data for area 12, w/TL & attch 2672 5 1545 0218-01617 1995/04/28 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits tables & figures summarizing groundwater vs pumped fr production wells, 10/94 - 3/95, w/attchs 2673 5 1554 0218-01607 1995/05/05 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Central groundwater treatment facility (CGTF) 2674 5 1599 0218-92698 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 10/19/93 - 3/31/94, v1 2675 5 1605 0218-01609 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 4/1/94 - 6/30/94, v2 2676 5 1607 0218-01610 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 7/1 - 8/31/94, v3 2677 5 1609 0218-01611 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 9/1 - 10/26/94, v4 2678 5 1611 0218-01612 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 11/1/94 - 1/31/95, v5 2679 5 1613 0218-01613 1995/05/08 Westech Laboratories Inc - Westech lab rpt re central groundwater treatment facility (CGTF) water quality data, sampled 11/1/94 - 1/31/95, v6 2680 5 1615 0218-01614 1995/05/08 Errol L Montgomery & Assoc, Inc - Summary of results of lab chemical analyses for gw samples fr monitor well PG-2LA 2681 5 1617 0218-93113 1995/05/12 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 4/95 water level measurements for monitor wells of UAU, MAU & LAU, w/attch 2682 5 1619 0218-01620 1995/05/12 AGRA Earth & Environmental, Inc Montgomery Watson Geotechnical investigation rpt re Paradise Valley Water Co well #15 treatment facility, Palo Verde Lane & Miller Rd, w/TLs 2683 5 1636 0218-01682 1995/05/17 Jim Nelson / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 5/5/95 ltr re central groundwater treatment facility (CGTF) 2684 5 1702 0218-92704 1995/06/02 International Technology Corp Nichols Hazelwood / N I B W Participating Cos Troubleshooting rpt for central groundwater treatment facility (CGTF), w/TL to E Roth fr N Hazelwood 6/16/95 2685 5 1705 0218-01625 1995/06/09 Westech Laboratories Inc Michelle Dehaan / City of Scottsdale, AZ Westech lab rpt re central groundwater treatment facility (CGTF) water quality data (reported 6/21/94), w/chain of custody form 2686 5 1744 0218-01592 1995/06/11 Westech Laboratories Inc City of Scottsdale, AZ Westech quality control rpt re organic monitoring drinking water volatiles 2687 5 1749 0218-01727 1995/06/16 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Confirms actions taken re central groundwater treatment facility (CGTF) in coordination with EPA & AZDOEQ, w/ltr 5/31/95, drawings & schedule 2688 5 1755 0218-01631 1995/06/19 Jim McVeigh / Paradise Valley Water Co Nichols Hazelwood / N I B W Participating Cos Memo: Participating Companies & Paradise Valley Water Co agreement - construction decision process, w/encls 2689 5 1766 0218-92723 1995/06/22 William Pedler / Colog, Inc Errol L Montgomery & Assoc, Inc Hydrophysical logging final rpt, well PG-40LA 2690 5 1772 0218-01629 1995/06/28 Woodward-Clyde Consultants - Mtg minutes: EPA/ADEQ NIBW meeting, w/TL to E Roth fr L LaPat 7/18/95 2691 5 1872 0218-01633 1995/06/28 Errol L Montgomery & Assoc, Inc - Summary of field data, w/TL to E Roth fr N Hazelwood 6/28/95 & encls 2692 5 1880 0218-01776 1995/07/03 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: City of Scottsdale of operation of new COS 75A well 2693 5 1882 0218-92726 1995/07/06 Kevin Wanttaja / Salt River Project Jim Nelson / City of Scottsdale, AZ Ltr: Authorization for City of Scottsdale to deliver start-up water fr central groundwater treatment facility (CGTF) to SRP water delivery system 2694 5 1885 0218-92728 1995/07/07 Emily Roth / Environmental Protection Agency - Region 9 Jim Nelson / City of Scottsdale, AZ Ltr: Discuss 90-day average calculations, schedule, missing data & plant operation, central groundwater treatment facility (CGTF), w/encls 2695 5 1887 0218-01632 1995/07/07 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 6/95 water-level measurements for monitor wells of UAU, MAU & LAU, w/attchs 2696 5 1899 0218-01668 1995/07/10 Louis Jekel / Jekel & Howard (Attorneys) - Ltr: Needs to construct water treatment facility at south of southeast corner of Miller Rd & McDonald Dr, w/encl 2697 5 1921 0218-92729 1995/07/16 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Schedule for NIBW capture & containment plan for middle alluvial unit (MAU), w/encl 2698 5 1924 0218-92739 1995/07/24 Frank Arceneaux / I C F Kaiser Engineers, Inc Environmental Protection Agency - Region 9 Data validation rpt: Case #CMS-95-01P, memo #2, volatiles for 20 water samples, collected 5/9/95 - 5/11/95 & 5/17/95, w/TL 2699 5 1927 0218-01634 1995/07/24 Mike McIntosh / I C F Kaiser Engineers, Inc Environmental Protection Agency - Region 9 Data validation rpt: Case #CMS-95-01P, memo #3, volatiles for 5 water samples, collected 5/17/95 - 5/18/95, w/TL 2700 5 1959 0218-01635 1995/07/24 Anita Pritchard / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Evaluation of treatment alternatives for well PCX-1, w/attch 2701 5 1982 0218-02048 1995/07/25 - - Sampling data for treated water, testing dates 10/19/93 - 1/20/95 2702 5 1990 0218-02036 1995/07/31 Errol L Montgomery & Assoc, Inc - Proposal for NIBW Participating Cos & Paradise Valley Water Co agreement, phased tech solution construction decision, hydrogeologic data analysis w/TL 2703 5 1998 0218-01636 1995/08/03 Julie Alvarado / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Paradise Valley Water Co (PVWC) groundwater ROC issues, w/attch 2704 5 2066 0218-92758 1995/08/04 Anita Pritchard / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Summary of 7/26/95 meeting re Paradise Valley Water Co engineering proposal 2705 5 2069 0218-93167 1995/08/04 Anita Pritchard / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Summary of 8/2/95 meeing re central groundwater treatment facility, w/attch 2706 5 2072 0218-93168 1995/08/10 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Invitation to attend Paradise Valley Water Co & NIBW Participating Co technical review team working session, w/agenda 2707 5 2077 0218-92764 1995/08/11 Woodward-Clyde Consultants Nichols Hazelwood / N I B W Participating Cos Evaluation of PCX groundwater treatment alternatives 2708 5 2080 0218-02047 1995/08/15 Ronald Miller / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Response to 7/7/95 ltr re central groundwater treatment facility (CGTF) 2709 5 2166 0218-92745 1995/08/17 Woodward-Clyde Consultants - Notes fr mtg re central groundwater treatment facility (CGTF), viewing of modifications to column 1 - 3 water distribution system (final) 2710 5 2168 0218-01674 1995/08/24 Ronald Miller / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 90 day average calculations fr 2/3/94 to 8/1/95 & sampling data for 39 days requested in 7/7/95, w/attch 2711 5 2175 0218-02116 1995/08/25 - - Paradise Valley Water Co (PVWC) & NIBW Participating Co interim status meeting re phase 1 hydrogeology data analysis, w/list of attendees 2712 5 2425 0218-92771 1995/08/28 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2713 5 2429 0218-02082 1995/08/29 James McVeigh / American Water Works Service Co, Inc American Water Works Service Co, Inc Memo: PVWC/NIBW update, w/TL fr J McVeigh to E Roth 2714 5 2477 0218-02050 1995/08/30 Westech Laboratories Inc Jim Nelson / City of Scottsdale, AZ Drinking water volatile organic chemical analysis 2715 6 1 0218-93322 1995/09/01 Julie Alvarado / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Paradise Valley Water Co (PVWC) groundwater ROC issues, w/attch 2716 6 6 0218-92774 1995/09/06 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2717 6 9 0218-02085 1995/09/07 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2718 6 26 0218-02087 1995/09/07 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2719 6 85 0218-02088 1995/09/07 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2720 6 134 0218-02089 1995/09/08 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2721 6 183 0218-02084 1995/09/08 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2722 6 232 0218-02090 1995/09/08 Mary Tyer / Analytical Technologies, Inc Jim Nelson / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2723 6 278 0218-02091 1995/09/15 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 8/95 water level measurements for monitor wells of UAU, MAU & LAU, w/attchs 2724 6 366 0218-01672 1995/09/18 - - Sampling & analysis plan (SAP) for consent decree compliance, Central Groundwater Treatment Facility (CGTF) & Quality assurance plan (QAPP), w/TL 2725 6 385 0218-01257 1995/09/19 Mary Tyer / Analytical Technologies, Inc Michelle Dehaan / City of Scottsdale, AZ Ltr: Transmits aqueous sample rpt, w/encl 2726 6 419 0218-02092 1995/09/20 Winifred Au / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Ltr: Review of Woodward-Clyde evaluation of PCX-1 groundwater treatment alternatives 2727 6 446 0218-01985 1995/09/20 Mary Tyer / Analytical Technologies, Inc City of Scottsdale, AZ Ltr: Transmits sample results fr 9/11/95 for aqueous samples, w/attch 2728 6 457 0218-02043 1995/09/20 Mary Tyer / Analytical Technologies, Inc City of Scottsdale, AZ Ltr: Transmits sample results fr 9/8/95 for aqueous samples, w/attch 2729 6 472 0218-02044 1995/09/20 Mary Tyer / Analytical Technologies, Inc City of Scottsdale, AZ Ltr: Transmits sample results fr 9/5/95 for aqueous samples, w/attch 2730 6 487 0218-02045 1995/09/20 Errol L Montgomery & Assoc, Inc - Preliminary interim status summary, phase 1 hydrogeologic analysis 2731 6 504 0218-92994 1995/09/21 Jim Nelson - Jim Nelson data - sample results, 1994 data, TCE treatment plant, 9/21/95 2732 6 511 0218-02764 1995/09/21 City of Scottsdale, AZ - Dept of Water Resources - TCE laboratory results for raw & treated water split samples fr groundwater treatment facility 2733 6 521 0218-93865 1995/09/27 Environmental Protection Agency - Region 9 - NIBW technical meeting agenda 2734 6 524 0218-92785 1995/09/29 Mary Tyer / Analytical Technologies, Inc City of Scottsdale, AZ Ltr: Transmits sample results fr 9/15/95 for aqueous samples, w/attch 2735 6 526 0218-02042 1995/09/29 Vito D'Aurora / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Data quality evaluation for 8/95 sampling events 2736 6 547 0218-02053 1995/10/05 Winifred Au / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Completes checking of additional data received, transmits data showing significant differences in results fr previous, w/attchs 2737 6 555 0218-92790 1995/10/09 James Nelson / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater treatment facility sample data for (7/7/95 - 9/15/95), w/attch 2738 6 560 0218-02083 1995/10/19 James Nelson / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits revised 90-day running average calculations for Central Groundwater Treatment Facility (CGTF), w/encls 2739 6 562 0218-01743 1995/10/30 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits bi-annual rpt re production well pumpage data, w/encl 2740 6 585 0218-01736 1995/11/04 C H 2 M Hill - Tables - Estimated VOC emission for time period 1 & 2 (10/93 - 11/4/95) & estimated VOC mass through CGTF for period (8/94 - 12/94) 2741 6 633 0218-02763 1995/11/07 Westech Laboratories Inc - Analytical results fr air & carbon samples taken at Central Groundwater Treatment Facility in 1994 & 1995 2742 6 637 0218-02725 1995/11/10 City of Scottsdale, AZ - Final interim drinking water compliance plan for reservoir 80, City of Scottsdale 2743 6 694 0218-01658 1995/11/10 City of Scottsdale, AZ - Final interim operating & blending plan, Central Groundwater Treatment Facility (CGTF) 2744 6 702 0218-01737 1995/11/13 AZ Dept of Environmental Quality - Consent order in matter of Central Groundwater Treatment Facility (CGTF), w/TL to E Roth fr M Simmerer 2745 6 730 0218-01657 1995/11/14 - - Ltr: Conditional certification of completion of Central Groundwater Treatment Facility (CGTF), w/encls 2746 6 740 0218-01738 1995/11/15 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 10/95 groundwater levels, w/encl 2747 6 773 0218-01741 1995/11/16 Emily Roth / Environmental Protection Agency - Region 9 Ron Miller / City of Scottsdale, AZ Ltr: Transmits EPA comments on draft Sampling & analysis plan (SAP) for air monitoring at Central Groundwater Treatment Facility (CGTF), w/encl 2748 6 792 0218-01739 1995/11/17 Environmental Protection Agency - Region 9 - Draft technical meeting agenda, w/list of attendees 2749 6 799 0218-92817 1995/11/21 Woodward-Clyde Consultants - CGTF column specific sampling, 8/85, (8/28 - 11/21/95), w/TLs 2750 6 802 0218-02708 1995/11/28 Woodward-Clyde Consultants City of Scottsdale, AZ Sampling & analysis plan (SAP) for air monitoring, Central Groundwater Treatment Facility (CGTF), w/encls 2751 6 804 0218-01755 1995/11/30 Mason Bolitho / AZ Dept of Water Resources Ronald DeWitt / Errol L Montgomery & Assoc, Inc Ltr: Transmits comments on draft rpt on agreement for construction decision process phase 1, w/attch 2752 6 818 0218-93221 1995/12/05 - - Central Groundwater Treatment Facility (CGTF) operation guidelines, interim period, City of Scottsdale 2753 6 821 0218-01760 1995/12/05 Julie Alvarado / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Paradise Valley Water Co (PVWC) groundwater issue 2754 6 974 0218-92822 1995/12/15 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: EPA 7/17/95 comments on LAU capture plan, w/memo 7/21/95 2755 6 976 0218-92828 1995/12/15 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: EPA comments on recommendations for monitoring program - middle & lower alluvium units, 5/25/95, w/9/18/95 ltr 2756 6 981 0218-92830 1995/12/20 Environmental Protection Agency - Region 9 - Mtg agenda: NIBW technical meeting, w/list of attendees 2757 6 984 0218-92824 1995/12/22 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 12/95 groundwater levels, w/encls 2758 6 987 0218-01746 1995/12/29 Phil Whitmore / AZ Dept of Environmental Quality Ed Pond / AZ Dept of Environmental Quality Memo: Review of LAU capture plan, 7/17/95 2759 6 1006 0218-93220 1995/12/31 - - 1995 air emissions estimate - well pumpage, VOCs removed fr GW, VOCs & total VOCs emitted fr each contactor, w/downtime & average 95 concentrations 2760 6 1010 0218-02761 1996/00/00 Salt River Project Environmental Protection Agency - Region 9 Water level rpts for 11/91-12/91, 1/92-11/92, 2/93-10/93, 12/93, 2/94, 4-6/94, 10-12/94, 1-4/95, 6/95, 10-11/95, 2/96, 4/96 2761 6 1038 0218-01358 1996/00/00 Salt River Project Environmental Protection Agency - Region 9 Water quality data, 1/95, 4/95, 8/95, 10/95, 1-4/96, w/TLs 2762 6 1040 0218-01386 1996/00/00 Ronald Miller / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits monthly data summary spreadsheets for water & maintenance activity, Central Groundwater Treatment Facility (CGTF), (1/96-3/96), w/encls 2763 6 1042 0218-01767 1996/00/00 Errol L Montgomery & Assoc, Inc - Maps: Change in gw level altitude, lower alluvium & middle alluvium units (8/95 - 12/95) 2764 6 1270 0218-01775 1996/00/00 G P I Environmental, Inc - 1996 well pumpage rpt for City of Scottsdale Central Groundwater Treatment Facility (CGTF), w/TL to E Roth fr R Miller 5/5/97 2765 6 1273 0218-93132 1996/01/15 N I B W Participating Cos - Quarterly rpts for 7/95-12/95, w/TLs to E Roth 2766 6 1276 0218-01675 1996/01/18 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits missing TCE series graphs (4QTR95 VOC) & corrected copy of table 1 fr mailing sent on 1/15/95, w/encls 2767 6 1286 0218-01744 1996/01/18 Winifred Au / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Documentation submitted to EPA fr 1/17/96 technical meeting 2768 6 1428 0218-92837 1996/01/19 City of Scottsdale, AZ - Monthly rpt for Central Groundwater Treatment Facility (CGTF), 12/95, w/TL & encls 2769 6 1430 0218-01745 1996/01/19 Ronald Miller / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 1995 annual total flow rpt for Central Groundwater Treatment Facility (CGTF), w/encls 2770 6 1432 0218-92841 1996/01/21 Levine-Fricke-Recon Motorola, Inc Workplan to estimate VOC mass & VOC mass flux in saturated portion of upper alluvial unit (UAU), Scottsdale, AZ, w/TL to E Roth fr B Cross 2771 6 1437 0218-02386 1996/01/30 Maricopa County, AZ - Air Pollution Control - Permit conditions, City of Scottsdale groundwater treatment facility, permit #96-0487, 1/30/96 2772 6 1456 0218-02710 1996/01/31 George Maseeh / Malcolm Pirnie, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits O&M plan for Central Groundwater Treatment Facility (CGTF), w/attch 2773 6 1464 0218-01783 1996/02/08 Levine-Fricke Siemens Components, Inc Installation rpt for soil vapor extraction (SVE) & treatment system, area 8, w/TL to E Roth fr J Lutton 2/9/96 2774 6 1749 0218-01747 1996/02/12 Phil Whitmore / AZ Dept of Environmental Quality Ed Pond / AZ Dept of Environmental Quality Memo: Results of sampling at Central Groundwater Treatment Facility (CGTF), w/TL to E Roth fr E Pond 4/25/96 & encls 2775 6 1949 0218-01778 1996/02/15 - - Annual rpt, total flow through, Central Groundwater Treatment Facility (CGTF) during 1995 2776 6 1972 0218-92869 1996/02/27 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Documents provided for 2/22/96 EPA/ADEQ technical mtg 2777 6 1974 0218-92846 1996/02/28 Errol L Montgomery & Assoc, Inc - Maps: Draft concentration of TCE in upper, middle & lower alluvium units for 10/95, w/TL to E Roth fr L Katz 2778 6 1976 0218-01758 1996/02/29 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 2/96 water level measurements, monitor wells of UAU, MAU & LAU aquifer units, NIBW study area, w/attch 2779 6 1981 0218-02032 1996/03/00 Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Monitoring well hydrographs & VOC time series, (11/92 - 3/96) 2780 6 2003 0218-02112 1996/03/07 Emily Roth / Environmental Protection Agency - Region 9 Ron Miller / City of Scottsdale, AZ Ltr: Approved transition period plans for Central Groundwater Treatment Facility (CGTF), w/encls 2781 6 2005 0218-01750 1996/03/08 Nichols Hazelwood / N I B W Participating Cos Keith Takata / Environmental Protection Agency - Region 9 Ltr: Follow-up to NIBW Participating Co mtg with EPA re convening groundwater task force 2782 6 2028 0218-92864 1996/03/08 Winifred Au / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Additional level of effort for split water sampling at Scottsdale groundwater treatment plant 2783 6 2030 0218-93213 1996/03/13 Tim Graves / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: COS split samples, (3/4 - 6/96), w/attchs 2784 6 2032 0218-92873 1996/03/19 Katherine Roxlo / Levine-Fricke Ronald Miller / City of Scottsdale, AZ - Dept of Water Resources Ltr: Transmits workplan for proposed improvements to COS 75, w/attch 2785 6 2038 0218-02104 1996/03/20 Mary Reker / Woodward-Clyde Consultants Emily Roth / Environmental Protection Agency - Region 9 Ltr: Agenda for 3/21/96 telephone conference call to discuss air issues at City of Scottsdale GWTF, w/encls & TL 2786 6 2048 0218-02711 1996/03/21 Woodward-Clyde Consultants - Graphs showing TCE removed & percent removal efficiency of each GAC contactor by date (GWTF air monitoring data), w/TL to E Roth fr M Reker 2787 6 2055 0218-93867 1996/03/26 Environmental Protection Agency - Region 9 - Mtg agenda: NIBW technical meeting 2788 6 2060 0218-92860 1996/03/26 Michelle De Haan / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits Scottsdale handout at 2/26/96 technical meeting, w/encls 2789 6 2062 0218-92874 1996/03/29 Emily Roth / Environmental Protection Agency - Region 9 Dennis Shirley / Motorola, Inc Ltr: Approval of Area 12 soil vapor extraction (SVE) design (05 RD complete, RA start 05, 3/29/96), w/CH2M Hill 1/30/96 comments on design rpt 2790 6 2068 0218-92856 1996/04/00 Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Oversize Maps (3): Concentration of TCE in UAU, MAU & LAU monitor wells 2791 6 2072 0218-01788 1996/04/00 C H 2 M Hill - Map: Concentration of TCE in monitor wells, 4/96, w/TL to E Roth fr W Au 9/16/96 2792 6 2078 0218-92942 1996/04/00 C H 2 M Hill - Map: Concentration of TCE in monitor wells, 4/96, w/TL to L Conrad fr W Au 2793 6 2081 0218-92953 1996/04/00 Salt River Project - Monthly water quality data summary for 4/96, volatile organic compounds in sentinel wells, w/TL to E Roth fr K Wolf 4/30/97 2794 6 2085 0218-93088 1996/04/02 Keith Takata / Environmental Protection Agency - Region 9 Cathy McKee / Motorola, Inc Ltr: Follow-up to 3/4/96 mtg & N Hazelwood ltr of 3/8/96 re EPA participation in gw task force, w/ltr of 3/7/96 re approved transition period plans 2795 6 2088 0218-92862 1996/04/12 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits data management mtg agenda & list of attendees for 4/18/96, w/encls 2796 6 2094 0218-01765 1996/04/17 Woodward-Clyde Consultants City of Scottsdale, AZ Interim operating period rpt, groundwater treatment facility 2797 6 2101 0218-02128 1996/04/19 City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Groundwater plant data argument 2798 6 2245 0218-92920 1996/04/29 Woodward-Clyde Consultants - Operations & maintenance plan, GWTF granulated activated carbon adsorber units, w/Sampling & analysis plan & Quality assurance plan for air monitoring 2799 6 2248 0218-02758 1996/04/30 City of Scottsdale, AZ - Dept of Water Resources - City of Scottsdale GWTF sample result triggers - flowchart 6(A), common sump or reservoir 80 results 2800 6 2287 0218-93476 1996/05/00 Ronald Miller / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Monthly data summary spreadsheets for water, air & carbon sampling & maintenance activity at GWTF, w/TL to E Roth fr R Miller 6/27/96 2801 6 2291 0218-01806 1996/05/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Monthly water quality data summary, sentinel wells PG-1LA, PG-2LA, PG-40LA & PG-41LA, w/TL to E Roth fr K Wolf 6/4/96 2802 6 2356 0218-92890 1996/05/08 Leslie Katz / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Memo: Data for lead monitor wells PG-1LA & PG-2LA, (1/96 - 4/96) 2803 6 2359 0218-93115 1996/05/14 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 4/96 water level measurements, monitor wells of UAU, MAU & LAU aquifer units, NIBW study area, w/attch 2804 6 2361 0218-02031 1996/05/16 Nichols Hazelwood / N I B W Participating Cos Winifred Au / C H 2 M Hill Mtg Agenda: 5/22/96 site data management mtg, w/SRP facility map 2805 6 2383 0218-92883 1996/05/20 Mary Reker / Woodward-Clyde Consultants Gill Guiterrez / Woodward-Clyde Consultants Memo: Suggestions for calculating VOC air emissions & transmits forms for 1994 emission inventory, w/attch 1 - estimated VOCs removed 2806 6 2386 0218-93868 1996/06/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Water level data for NIBW UAU/MAU/LAU groundwater monitoring programs, w/TL to E Roth fr K Wolf 6/21/96 2807 6 2390 0218-01800 1996/06/00 Ronald Miller / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Monthly data summary spreadsheets for water, air & carbon sampling & maintenance activity at GWTF, w/TL to E Roth fr R Miller 7/29/96 2808 6 2396 0218-01807 1996/06/00 Environmental Protection Agency - Region 9 - Fact Sheet: Update on site activities 2809 6 2443 0218-93492 1996/06/06 Michelle De Haan / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Outline of GWTF presentation for public meeting, w/TL 6/6/96 2810 6 2448 0218-92881 1996/06/11 Dennis Shirley / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Area 12 groundwater source control program, w/response to 3/11/96 SRP proposal & preliminary project schedule 2811 6 2453 0218-92882 1996/06/19 Gary Cline / Malcolm Pirnie, Inc Ronald Miller / City of Scottsdale, AZ - Dept of Water Resources Ltr: Transmits summary of findings, conclusion & recommendations fr assessment of GWTF performance data, w/attchs 2812 6 2458 0218-02385 1996/06/21 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 6/96 water-level measurements for monitor wells, w/attchs 2813 6 2482 0218-01784 1996/06/26 David McKinney / Salt River Project - Case narrative rpt, w/results of analysis performed on samples obtained fr monitoring wells (4/4/96 - 5/15/96) 2814 6 2504 0218-02113 1996/06/26 Ronald DeWitt / Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits summary of results of lab chemical analyses for VOCs in groundwater samples fr LAU monitor wells PG-1LA & PG-2LA, w/encls 2815 6 2506 0218-92894 1996/06/27 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Water quality data for 2nd quarter 1996 2816 6 2512 0218-02034 1996/06/27 Environmental Protection Agency - Region 9 - Agenda for 2-day NIBW technical mtg (6/26 - 6/27/96), w/attendance sheet for 6/27 & TL to E Roth fr W Au 6/24/96 2817 6 2527 0218-92893 1996/07/00 City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Monthly data summary spreadsheets for water, air & carbon sampling & maintenance activity at GWTF, 4/96 & 7/96, w/TLs 2818 6 2531 0218-01798 1996/07/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Monthly water quality data summary, sentinel wells PG-1LA, PG-2LA, PG-40LA & PG-41LA, w/TL 8/13/96 2819 6 2630 0218-92916 1996/07/08 Delores Geiser / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water quality rpt, 2nd quarter 1996, w/attchs 2820 6 2633 0218-01785 1996/07/10 Kathleen Johnson / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Memo: 7/10/96 mtg at AZ Dept of Environmental Quality (ADEQ) office re amended ROD & CD, final remedy & schedule, w/sign-in sheet & schedule 2821 6 2651 0218-92880 1996/07/15 N I B W Participating Cos Environmental Protection Agency - Region 9 Quarterly rpt, 4/96-6/96, w/TL to E Roth fr N Hazelwood 2822 7 1 0218-01786 1996/07/16 Woodward-Clyde Consultants - Proposed well operation schedule & testing protocol for PCX-1 2823 7 8 0218-01987 1996/07/22 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits revised volatile organic compounds (VOC) summary table for 1996 2nd quarterly water quality rpt, w/encl 2824 7 21 0218-92899 1996/07/25 James McVeigh / American Water Works Service Co, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Requests approval of waivers to allow test pumping of well PCX-1 to Arizona Canal 2825 7 24 0218-92897 1996/07/26 Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Summary of hydrogeologic data, PG-47MA/PG-48MA installation program 2826 7 26 0218-92929 1996/07/30 McKenzie Laboratories, Inc - Results of sampling analysis, w/TLs 2827 7 30 0218-01790 1996/08/00 South Pass Resources, Inc - Contour maps of 8/96 groundwater levels for UAU, MAU & LAU, w/TL to E Roth fr D Stephenson 9/12/96 2828 7 45 0218-01838 1996/08/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Water level rpt for 8/96, w/TL to E Roth fr K Wolf 8/26/96 2829 7 67 0218-92914 1996/08/02 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Memo: Transmits comments on 7/9/96 draft comprehensive groundwater management plan, w/attch 2830 7 73 0218-92918 1996/08/16 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Comments on groundwater monitoring program summary & comprehensive groundwater management plan received at 8/9/96 mtg, w/maps & attendance sheet 2831 7 76 0218-01811 1996/08/19 Terry Lockwood / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Memo: Transmits analytical results fr PVWC well #15, w/attchs 2832 7 89 0218-01989 1996/08/20 Hannah Goldstein / Scottsdale Concerned Citizens Emily Roth / Environmental Protection Agency - Region 9 Memo: Request for information re soil contamination at Motorola 2833 7 100 0218-92940 1996/08/24 Hannah Goldstein / Scottsdale Concerned Citizens Emily Roth / Environmental Protection Agency - Region 9 Memo: Concerns about contaminated soil at Motorola 2834 7 103 0218-92938 1996/08/26 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Groundwater level data for 8/96 water level measurements for monitor wells of UAU, MAU & LAU aquifer units within NIBW study area, w/attch 2835 7 105 0218-93157 1996/08/29 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits monthly water quality data summary, sentinel wells, w/attch 2836 7 111 0218-01816 1996/08/31 Denise Powell / McKenzie Laboratories, Inc Maria Mahar / Environmental Protection Agency - Region 9 McKenzie lab rpts re Central Groundwater Treatment Facility (CGTF) water quality data for 8/96 2837 7 116 0218-01835 1996/08/31 Hannah Goldstein / Scottsdale Concerned Citizens Emily Roth / Environmental Protection Agency - Region 9 Memo: Contaminated soil at Motorola 2838 7 118 0218-92939 1996/09/00 Environmental Protection Agency - Region 9 - RA rpt, groundwater monitoring well installation for upper alluvial unit (UAU) 2839 7 120 0218-01821 1996/09/00 Gutierrez-Palmenberg, Inc Environmental Protection Agency - Region 9 Computer Disks (2): Monthly data fr City of Scottsdale (COS) Central GWTF for 8/96 & 9/96 2840 7 191 0218-02621 1996/09/03 Catherine McKee / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits NPDES & mixing zone permit application for extraction well PCX-1, w/encl 2841 7 194 0218-01837 1996/09/09 Environmental Protection Agency - Region 9 - Joint notice of proposed action re issuance of NPDES permit for PCX-1 gw extraction well 2842 7 260 0218-93620 1996/09/12 David Hayes / Latham & Watkins (Attorneys) Kathleen Johnson / Environmental Protection Agency - Region 9 Ltr: Follow-up to 7/96 mtg providing additional information re Central Groundwater Treatment Facility (CGTF) 2843 7 264 0218-01839 1996/09/13 Elena Gorelik / Maricopa County, AZ Emily Roth / Environmental Protection Agency - Region 9 Memo: Comments re conditions necessary for Central GWTF permit 2844 7 295 0218-93493 1996/09/14 Herbert Schumann / Herbert Schumann & Assoc - Article: Land subsidence & earth fissures in West Salt River Valley, Maricopa County (paper fr 9/12-14/96 symposium) (3/18/98 technical mtg handout) 2845 7 297 0218-93963 1996/09/17 Emily Roth / Environmental Protection Agency - Region 9 Hannah Goldstein / Scottsdale Concerned Citizens Ltr: EPA response to information request of 8/20 & ltrs of 8/24 & 8/31 2846 7 302 0218-92927 1996/09/18 Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Middle alluvial unit (MAU) well update (handout) 2847 7 307 0218-01846 1996/09/18 Environmental Protection Agency - Region 9 - Mtg Agenda: 9/18/96 technical mtg, w/attchs 2848 7 319 0218-02225 1996/09/19 Maria Mahar / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Ltr: City of Scottsdale Superfund public information activity summary, w/encl 2849 7 330 0218-92961 1996/09/25 Onsite Environmental Laboratories, Inc Motorola, Inc Preliminary analytical results, PCX-1 well pumping, samples received 9/23/96 2850 7 334 0218-93118 1996/09/28 Denise Powell / McKenzie Laboratories, Inc Maria Mahar / City of Scottsdale, AZ McKenzie lab rpts re Central Groundwater Treatment Facility (CGTF) water quality data for 9/96 2851 7 337 0218-01824 1996/10/00 South Pass Resources, Inc - Contour maps of 10/96 groundwater levels at UAU, MAU & LAU monitoring wells, w/TL 2852 7 339 0218-01659 1996/10/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Monthly water quality data summary for sentinel wells for 10/96, w/TL 2853 7 361 0218-92952 1996/10/02 Mike Grigorieff / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Memo: Review comments re City of Scottsdale 9/18 draft operating & blending plan 2854 7 364 0218-92928 1996/10/03 Dennis Shirley / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Overheads: Mtg presentation for NIBW Area 12 groundwater source control program 2855 7 366 0218-01826 1996/10/15 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Quarterly rpt for 7/96 - 9/96 summarizing activities of NIBW Participating Cos pursuant to consent decree for OU1, w/TL 10/14 2856 7 382 0218-01823 1996/10/15 Environmental Protection Agency - Region 9 - Mtg Agenda: 10/15/96 community mtg, w/sign-in sheet 2857 7 390 0218-92965 1996/10/16 - - Technical mtg sign-in sheet for 10/16/96 2858 7 393 0218-92958 1996/10/16 Environmental Protection Agency - Region 9 - Mtg Agenda: 10/16/96 technical mtg 2859 7 395 0218-92964 1996/10/17 - - Sign-in sheet for 10/17/96 mtg 2860 7 397 0218-92962 1996/10/18 Terry Lockwood / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Design assumptions for groundwater pump & treatment system at area 12 2861 7 399 0218-92925 1996/10/22 C H 2 M Hill Environmental Protection Agency - Region 9 Common sump sampling results fr Central Groundwater Treatment Facility (CGTF), w/TL to E Roth 10/23/96 2862 7 403 0218-92926 1996/11/00 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 11/96, w/TL to E Roth fr E Cohoon 12/27/96 2863 7 406 0218-01981 1996/11/00 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Water quality data for sentinel well for 11/96, w/TL 2864 7 564 0218-92966 1996/11/04 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 10/96 water level data for UAU/MAU/LAU groundwater monitoring programs, w/attchs 2865 7 567 0218-01854 1996/11/06 Terry Lockwood / Motorola, Inc - NIBW area 12 soil vapor extraction (SVE) system installation rpt (revised) 2866 7 581 0218-01787 1996/11/13 - - Sign-in sheet for 11/13/96 citizens mtg (redacted, FOIA ex 6) 2867 7 653 0218-92951 1996/11/15 David Stephenson / GeoWest Group, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater contour maps for 10/96 water level measurements, monitor wells of UAU, MAU & LAU aquifer units, NIBW study area, w/attch 2868 7 656 0218-02029 1996/11/18 Jim McVeigh / Paradise Valley Water Co - Agreement between Participating Cos & Paradise Valley Water Co 2869 7 678 0218-01859 1996/11/19 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 10/96, w/TL 2870 7 723 0218-01842 1996/12/00 City of Scottsdale, AZ - Monthly rpt for Central Groundwater Treatment Facility (CGTF), 12/96 2871 7 725 0218-93117 1996/12/04 - - Sign-in sheet for 12/4/96 mtg (redacted, FOIA ex 6) 2872 7 728 0218-92989 1996/12/06 Emily Roth / Environmental Protection Agency - Region 9 Terry Lockwood / Motorola, Inc Ltr: Approves Motorola (area 12) soil vapor extraction (SVE) system startup 2873 7 731 0218-92998 1996/12/10 Terry Lockwood / Motorola, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Acknowledgment of EPA approval to conditionally startup Area 12 soil vapor extraction (SVE) & 12/96 SVE monthly progress rpt, w/attch 2874 7 734 0218-01663 1996/12/11 Terry Sterling / Phoenix New Times - Article: Scottsdale's drinking problem (Phoenix New Times, v27, #49) 2875 7 743 0218-01666 1996/12/12 Katherine Roxlo / Levine-Fricke-Recon Emily Roth / Environmental Protection Agency - Region 9 Ltr: Lower MAU investigation results for site, w/attch 2876 7 751 0218-02037 1996/12/16 Elizabeth Cohoon / McKenzie Laboratories, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits rpts for city of Scottsdale water monitoring for 11/96 with table summarizing rpts, w/o rpts 2877 7 762 0218-93119 1996/12/31 Westech Laboratories Inc - City of Scottsdale GWTF water quality results for 1993-1996 fr wells 6, 31 & 71 (pt 1 of 2) 2878 7 766 0218-02404 1996/12/31 Westech Laboratories Inc - City of Scottsdale GWTF water quality results for 1993-1996 fr wells 72, 75, 75A & 74 (pt 2 of 2) 2879 7 768 0218-02405 1997/00/00 Errol L Montgomery & Assoc, Inc Emily Roth / Environmental Protection Agency - Region 9 Oversize maps (15): Chemical concentration & inorganic water quality, w/table 3, lab results of chemical analysis - inorganic data mapped 4/16/97 2880 7 770 0218-01980 1997/01/00 City of Scottsdale, AZ - Monthly rpt for Central Groundwater Treatment Facility (CGTF), 1/97, w/TL & encls 2881 7 794 0218-01926 1997/01/00 Gutierrez-Palmenberg, Inc Environmental Protection Agency - Region 9 Computer Disk: Monthly data disk for Central Groundwater Treatment Facility 3.5 in, w/env & TL fr S Lewis to E Roth 3/17/97, w/o mail receipt 2882 7 842 0218-02267 1997/01/00 Salt River Project - Monthly water quality data summary for 1/97, volatile organic compounds in sentinel wells, w/TL fr K Wolf to E Roth 2/3/97 2883 7 847 0218-93011 1997/01/02 Elizabeth Cohoon / McKenzie Laboratories, Inc Maria Mahar / City of Scottsdale, AZ Ltr: Transmits samples submitted on 12/20/96, w/o encl, w/TL fr M Mahar to E Roth 1/3/97 2884 7 850 0218-92987 1997/01/03 McKenzie Laboratories, Inc City of Scottsdale, AZ City of Scottsdale sampling results, w/chain of custody forms 2885 7 853 0218-01651 1997/01/03 Elizabeth Cohoon / McKenzie Laboratories, Inc Steve Lewis / Gutierrez-Palmenberg, Inc TL: Results of samples submitted on 12/24/96 2886 7 871 0218-92984 1997/01/03 Nichols Hazelwood / N I B W Participating Cos Ted Jones / Paradise Valley Water Co Ltr: Summary of 11/15/96 mtg to review results in phase 2 hydrogeological rpt 2887 7 873 0218-93006 1997/01/03 Katherine Roxlo / Levine-Fricke-Recon Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits middle alluvial unit (MAU) well location maps, w/attch 2888 7 876 0218-93159 1997/01/07 Salt River Project - Monthly water quality data summary for 12/96, w/TL 2889 7 882 0218-01646 1997/01/07 Salt River Project - Fourth quarter water quality rpt, w/TL 2890 7 889 0218-01805 1997/01/07 Salt River Project Environmental Protection Agency - Region 9 Water quality rpt for 4th quarter 1996, v1, w/TL 2891 7 891 0218-01957 1997/01/07 Salt River Project Environmental Protection Agency - Region 9 Water quality rpt for 4th quarter 1996, v2 2892 7 893 0218-01958 1997/01/08 C H 2 M Hill - Estimate of total contaminant mass in vadose zone for source areas 6, 7, 8 & 12 2893 7 895 0218-01931 1997/01/09 Kris Kommalan / American Environmental Network (Arizona), Inc Laurie Jacobson / Motorola, Inc Ltr: Transmits analysis of aqueous & non-aqueous samples, w/attch 2894 7 921 0218-02039 1997/01/10 City of Scottsdale, AZ - Charts, rpts & ltrs pertaining to Central Groundwater Treatment Facility (CGTF) maintenance, w/attchs 2895 7 936 0218-01638 1997/01/10 Emily Roth / Environmental Protection Agency - Region 9 Terry Lockwood / Salt River Project Ltr: EPA conditional approval of Motorola (area 12) soil vapor extraction (SVE) system operation 2896 7 951 0218-92990 1997/01/14 David Stephenson / South Pass Resources, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Groundwater contour maps for 12/96 water level measurements for UAU, MAU & LAU monitor wells, w/encls 2897 7 954 0218-01641 1997/01/15 Roger Klinger / City of Scottsdale, AZ - Dept of Water Resources Russell Rhoades / AZ Dept of Environmental Quality Ltr: Additional information re City of Scottsdale Central Groundwater Treatment Facility (GWTF) drinking water compliance, w/attchs 2898 7 976 0218-01990 1997/01/22 - - Agenda for 1/22/97 mtg re Motorola & area 7 cleanup, w/handwritten query fr E Roth to H Goldstein 2899 7 1163 0218-92978 1997/01/22 - - Sign-in sheet for 1/22/97 community mtg (redacted, FOIA ex 6) 2900 7 1165 0218-93054 1997/01/22 - - Mtg Agenda: 1/22/97 community participation mtg 2901 7 1168 0218-93063 1997/01/22 Nichols Hazelwood / N I B W Participating Cos Tim Graves / C H 2 M Hill TL: Computer files & pumpage data fr 11/5/96 rpt 2902 7 1171 0218-93160 1997/01/22 - Environmental Protection Agency - Region 9 Mtg Agenda: January technical mtg (1/22/97) re MAU results, modeling data & community issues 2903 7 1174 0218-93514 1997/01/23 - - Sign-in sheet for 1/23/97 mtg 2904 7 1176 0218-93012 1997/01/30 Motorola, Inc - NIBW Area 12 soil vapor extraction (SVE) startup summary rpt, w/TL 2905 7 1178 0218-01863 1997/01/31 Gutierrez-Palmenberg, Inc - Monthly data disks for 11/96 & 12/96, City of Scottsdale Central Groundwater Treatment Facility (CGTF), w/TL 2906 7 1333 0218-01869 1997/01/31 Errol L Montgomery & Assoc, Inc - Analysis of potential conduit wells, w/TL 2907 7 1339 0218-01915 1997/02/00 Salt River Project - Monthly water quality data summary for 2/97, w/TL fr K Wolf to E Roth 3/4/97 2908 7 1370 0218-93094 1997/02/00 Salt River Project - Water level rpt for 2/97, w/TL fr K Wolf to E Roth 3/4/97 2909 7 1373 0218-93126 1997/02/05 Durward Bagley, Resident / City of Rexburg, ID Emily Roth / Environmental Protection Agency - Region 9 Ltr: Request for information about contamination of Phoenix wells 2910 7 1379 0218-93018 1997/02/13 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 12/96, w/TL 2911 7 1381 0218-01878 1997/02/14 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 1/97, w/TL 2912 7 1383 0218-01879 1997/02/24 Maria Mahar / City of Scottsdale, AZ - Dept of Water Resources Judy Anthony / Maricopa County, AZ - Environmental Services Dept Ltr: Confirms procedures for annual air emission inventory reporting, w/encl 2913 7 1385 0218-93806 1997/02/25 Steven Bennett / City of Scottsdale, AZ Jan Carlson / Environmental Protection Agency - Region 9 Ltr: Central Groundwater Treatment Facility (CGTF) operation, w/encl 2914 7 1388 0218-93021 1997/02/26 G P I Environmental, Inc - Groundwater treatment facility, air samples, contactor 1, (1/1/96 - 12/30/96), w/TL 2915 7 1393 0218-02715 1997/02/27 Environmental Protection Agency - Region 9 - Agenda & sign-in sheet for NIBW technical mtg re area 7 soil vapor extraction (SVE) system & MAU groundwater proposal 2916 7 1431 0218-93023 1997/02/27 - - Mtg Agenda: 2/27/97 community participation mtg 2917 7 1434 0218-93041 1997/02/27 - - Sign-in sheet for 2/27/97 public mtg (redacted, FOIA ex 6) 2918 7 1436 0218-93076 1997/03/00 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 3/97, w/TL fr E Cohoon to E Roth 4/14/97 2919 7 1439 0218-01982 1997/03/00 Salt River Project - Water quality data for sentinel wells, 3/97, w/TL fr K Wolf to E Roth 4/3/97 2920 7 1441 0218-93061 1997/03/03 G P I Environmental, Inc - Groundwater treatment facility, air samples, contactor 3, (1/1/96 - 12/30/96), w/TL 2921 7 1444 0218-02717 1997/03/07 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: Transmits SOW for performance of FS amendment & supplemental study pursuant to consent decree, w/encl 2922 7 1481 0218-01874 1997/03/13 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps for 2/97 groundwater levels at site, w/encls 2923 7 1500 0218-01944 1997/03/14 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 2/97, w/TL 2924 7 1520 0218-01913 1997/04/00 Salt River Project - Water level rpt for 4/97, w/TL to E Roth fr K Wolf 4/30/97 2925 7 1522 0218-01949 1997/04/09 - - Handout for 4/9/97 Motorola briefing on Area 12 groundwater source control proposal, 2/6/97 2926 7 1528 0218-01908 1997/04/15 Motorola, Inc Salt River Project Agricultural Improvement & Power District Agreement for operation & costs of PCX-1 between Salt River Project & Participating Cos 2927 7 1536 0218-02826 1997/04/15 Motorola, Inc Paradise Valley Water Co Agreement for treatment of water fr PCX-1 well at Miller Road Treatment Facility 2928 7 1555 0218-02827 1997/04/16 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits groundwater level change data & maps for 2/96 - 2/97, w/encls 2929 7 1571 0218-01906 1997/04/16 - - Handouts fr 4/16/97 Motorola soil vapor extraction (SVE) system public mtg, VOC concentrations chart, pipeline layout map & well chart 2930 7 1587 0218-93039 1997/04/16 - - Mtg Agenda: Community participation meeting, 4/16/97 re Motorola & Siemens soil cleanup & wells in area, w/sign-in sheet 2931 7 1591 0218-93957 1997/04/17 - - Agenda & sign-in sheet for 4/17/97 technical mtg 2932 7 1594 0218-93030 1997/04/17 City of Scottsdale, AZ - Communications & Public Affairs - Press Release: Community open house on 5/21 to discuss Central Groundwater Treatment Facility (CGTF) 2933 7 1597 0218-93034 1997/04/21 Maria Mahar / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Ltr: Total gallons pumped fr wells supplying CGTF, (1993 - 4/21/97), w/water delivered to potable system through reservoir #80, (1/94 -12/94) 2934 7 1599 0218-02718 1997/04/21 - - Water exchange & treatment agreement between Paradise Valley Water Co & Salt River Valley Water Users Assoc 2935 7 1616 0218-02818 1997/04/24 Marlene Baker, resident / City of Scottsdale, AZ Emily Roth / Environmental Protection Agency - Region 9 Memo: Public participation in Superfund, transmits & comments on 4/17/97 city news release, w/o attch 2936 7 1631 0218-93033 1997/04/24 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Documents distributed at 4/17/97 technical mtg 2937 7 1633 0218-93084 1997/04/29 Harding Lawson Assoc - FS addendum workplan, w/TL to E Roth fr S Wienand 2938 7 1635 0218-01940 1997/05/00 Herman Bouwer / US Dept of Agriculture - Water Conservation Laboratory - Article: Arizona's long-term water outlook, fr NIMTO to AMTO (Newsletter of AZ Hydrological Society, v14, Apr & May 97) [4/22/98 mtg handout] 2939 7 1655 0218-02277 1997/05/01 American Water Works Service Co, Inc - Volatile organic compound analyses for PCX-1 raw wellhead sample & tower #2, samples will be taken monthly after 5/97, w/TL 2940 7 1675 0218-93089 1997/05/05 Alice Brawley-Chesworth / McKenzie Laboratories, Inc Steve Lewis / Gutierrez-Palmenberg, Inc Ltr: Methyl tertiary butyl ether (MTBE) sampling at Central Groundwater Treatment Facility (CGTF) w/TL to E Roth fr M Mahar 6/23/97 2941 7 1681 0218-93096 1997/05/14 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps for 4/97 groundwater levels at site, w/encls 2942 7 1684 0218-01953 1997/05/14 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits semi-annual rpt for production well discharge data, (10/96 - 3/97), w/encls 2943 7 1703 0218-01954 1997/05/15 Emily Roth / Environmental Protection Agency - Region 9 Hannah Goldstein / Scottsdale Concerned Citizens Water quality data fr Central Groundwater Treatment Facility (CGTF) & handouts fr 5/15/97 public mtg 2944 7 1756 0218-01956 1997/05/15 Elizabeth Cohoon / McKenzie Laboratories, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits City of Scottsdale water monitoring rpts for 4/97, w/encls 2945 7 1827 0218-01959 1997/05/15 - - Sign-in sheet for 5/15/97 public mtg (redacted, FOIA ex 6) 2946 7 1829 0218-93075 1997/05/15 Errol L Montgomery & Assoc, Inc - Update on conduit study at 5/15/97 technical mtg 2947 7 1832 0218-93091 1997/05/15 Environmental Protection Agency - Region 9 - Agenda & sign-in sheet for 5/15/97 technical mtg 2948 7 1836 0218-93092 1997/05/19 Kevin Wanttaja / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits rpt on SRP water production impacts & replacement needs, w/encls 2949 7 1839 0218-01942 1997/05/20 Environmental Protection Agency - Region 9 - Sign-in sheet for 5/20/97 EPA quarterly mtg 2950 7 1850 0218-93074 1997/05/29 Salt River Project - Monthly water quality data summary for 5/97, volatile organic compounds in sentinel wells, w/TL 2951 7 1852 0218-02008 1997/05/31 City of Scottsdale, AZ Maricopa County, AZ 1995 air emissions rpt (VOCs emitted) - (air emissions inventory forms), w/attchs & post-it notes 2952 7 1861 0218-02771 1997/06/00 Salt River Project - Monthly water quality data summary for 6/97, volatile organic compounds in sentinel wells, w/TL fr K Wolf to E Roth 6/23/97 2953 7 1879 0218-93095 1997/06/09 Ed Pond / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Review of FS addendum workplan 2954 7 1882 0218-92747 1997/06/10 William Donahue / Unidynamics Phoenix, Inc Rusty Harris-Bishop / Environmental Protection Agency - Region 9 Ltr: Monthly rpt for 5/97 AR 2955 7 1885 0218-02027 1997/06/13 Gutierrez-Palmenberg, Inc Environmental Protection Agency - Region 9 Computer Disks: Monthly data fr City of Scottsdale Central GWTF for 2/97, 3/97 & 4/97, w/TL 2956 7 1910 0218-02395 1997/06/13 Maria Mahar / City of Scottsdale, AZ - Dept of Water Resources Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits draft CGTF 1996 air data, TGNMO samples taken at contactor 3 & draft permit proposal, w/encls 2957 7 1916 0218-02720 1997/06/17 Levine-Fricke-Recon - Mtg agenda: Area 7 middle alluvium unit (MAU), w/TL fr K Roxlo 6/16/97 2958 7 1962 0218-92750 1997/06/18 - - Mtg agenda & sign-in sheet - community participation mtg 2959 7 1965 0218-92751 1997/06/18 Emily Roth / Environmental Protection Agency - Region 9 - List of meeting attendees (handwritten) 2960 7 1968 0218-93240 1997/06/23 Salt River Project - Water quality data for groundwater monitoring program, v1 of 2, w/tables 1 & 2 & TL 2961 7 1970 0218-02024 1997/06/23 Salt River Project - Water quality data for groundwater monitoring program, v2 of 2 2962 7 1972 0218-02025 1997/06/23 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 2nd quarter 1997 water quality rpt, w/attch 2963 7 1974 0218-02115 1997/06/24 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 5/97, w/corrected rpts sent 5/23/97 & TL 2964 7 1976 0218-02009 1997/06/25 Errol L Montgomery & Assoc, Inc - Phased technical solution construction decision process, phase 2 hydrogeologic data analysis rpt, w/TL 2965 7 1978 0218-01964 1997/06/27 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: Approval of Participating Companies 4/29/97 FS addendum workplan, w/o attch 2966 7 2206 0218-92748 1997/07/00 G P I Environmental, Inc City of Scottsdale, AZ - Dept of Water Resources 1996 annual rpt for groundwater treatment facility 2967 7 2211 0218-02094 1997/07/01 American Environmental Network (Arizona), Inc City of Scotts Valley - Water District City of Scottsdale well #25 water quality data 2968 7 2288 0218-02397 1997/07/07 Levine-Fricke-Recon Siemens Components, Inc Decommissioning plan for soil vapor extraction system, Area 8 2969 7 2290 0218-01978 1997/07/14 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps for 6/97 groundwater levels at site, w/encls 2970 7 2303 0218-01967 1997/07/15 Elizabeth Cohoon / McKenzie Laboratories, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits rpts for City of Scottsdale water monitoring program for 6/97, w/attchs 2971 7 2322 0218-02057 1997/07/21 Winifred Au / C H 2 M Hill Maria Mahar / City of Scottsdale, AZ Memo: Transmits 4/96 map of areas of contaminated groundwater with trichloroethylene (TCE) & outline of gw treatment facility (GWTF) area, w/attchs 2972 7 2324 0218-93104 1997/07/21 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: Determination on area 8 soil vapor extraction (SVE) system, evaluation of semi-annual rpt & approval of decommissioning plan, w/attch 2973 7 2329 0218-93108 1997/07/30 - - Mtg agenda, sign-in sheet, notes & handouts - community participation mtg re groundwater treatment facility (GWTF) 2974 7 2333 0218-01968 1997/07/31 Environmental Protection Agency - Region 9 - Agenda, notes, sign-in sheet & handouts for 7/31/97 technical mtg 2975 7 2373 0218-01979 1997/07/31 Emily Roth / Environmental Protection Agency - Region 9 - Mtg notes & sign-in sheet - area 12 gw source control 2976 7 2380 0218-93105 1997/07/31 Emily Roth / Environmental Protection Agency - Region 9 - Mtg notes & sign-in sheet - area 7 soil vapor extraction (SVE) 2977 7 2383 0218-93106 1997/08/00 Salt River Project - Water level rpt for 8/97, w/TL fr K Wolf to E Roth 8/29/97 2978 7 2386 0218-93129 1997/08/03 Gutierrez-Palmenberg, Inc Environmental Protection Agency - Region 9 Computer Disk: Monthly data fr City of Scottsdale Central GWTF for 6/98, w/TL 2979 7 2392 0218-02396 1997/08/04 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Documents distributed at 7/31/97 EPA/ADEQ technical mtg 2980 7 2396 0218-93138 1997/08/05 Thomas Milch / Arnold & Porter (Attorneys) Jan Carlson / Environmental Protection Agency - Region 9 Ltr: Summary of 7/25/97 mtg re FS addendum 2981 7 2398 0218-93684 1997/08/20 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 7/97, w/corrected rpts, late results, corrected forms & TL 2982 7 2400 0218-02010 1997/08/22 Thomas Waldbillig / Maricopa County, AZ - Environmental Services Dept Jim Campbell / Paradise Valley Water Co Ltr: Approval for development of new groundwater source with stipulations, PCX-1 well, w/attch 2983 7 2402 0218-02825 1997/08/28 Harding Lawson Assoc Environmental Protection Agency - Region 9 Interim site characterization data submittal, FS addendum, w/TL to E Roth fr S Wienand 2984 7 2411 0218-02251 1997/08/31 - - Mtg Notes: Notes on 8/31/97 technical mtg 2985 7 2480 0218-93529 1997/09/04 Emily Roth / Environmental Protection Agency - Region 9 Michael Montgomery / Environmental Protection Agency - Region 9 Email: Request by City of Scottsdale & Motorola to discuss Community Advisory Group (privileged, FOIA ex 5) 2986 7 2482 0218-02843 1997/09/12 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 8/97 groundwater levels, w/encls 2987 7 2484 0218-02017 1997/09/12 Steven Bennett / City of Scottsdale, AZ - Office of the City Attorney Emily Roth / Environmental Protection Agency - Region 9 Ltr: Operating & blending plan, Scottsdale groundwater treatment facility - issues City has identified as requiring further discussion, w/o attchs 2988 7 2503 0218-02833 1997/09/12 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: Groundwater modeling & FS amendment (FSA) due dates & conference call re record of decision (ROD) & consent decree, w/attch 2989 7 2510 0218-93144 1997/09/12 Emily Roth / Environmental Protection Agency - Region 9 Dennis Shirley / Motorola, Inc Ltr: Approval of area 12 middle alluvium unit (MAU) groundwater source control program workplan 2990 7 2515 0218-93145 1997/09/15 McKenzie Laboratories, Inc - City of Scottsdale water monitoring rpts for 8/97, w/corrections sent 8/15/97 & TL 2991 7 2518 0218-02011 1997/09/15 Dennis Shirley / Motorola, Inc Michael Montgomery / Environmental Protection Agency - Region 9 Ltr: Thank you for mtg with Motorola & City of Scottsdale to discuss community involvement 2992 7 2520 0218-93139 1997/09/17 Lance Decker / L L Decker & Assoc, Inc - Community involvement mtg summary, w/TL to E Roth fr L Decker 10/5/97 2993 7 2522 0218-02023 1997/09/17 C H 2 M Hill - Technical mtg sign-in sheet 2994 7 2529 0218-93146 1997/09/17 Environmental Protection Agency - Region 9 - Community involvement mtg sign-in sheet, w/information sheet re mtgs 2995 7 2531 0218-93147 1997/09/26 Jim Holway / AZ Dept of Water Resources David Roberts / Salt River Project Ltr: Approval of water exchange, #69-562683, between Salt River Project & Paradise Valley Water Co 2996 7 2534 0218-93943 1997/10/02 James Lutton / Levine-Fricke-Recon Emily Roth / Environmental Protection Agency - Region 9 Ltr: Decommissioning of soil-vapor extraction (SVE) system at Area 8, completed 8/22/97, w/attchs 2997 7 2537 0218-02020 1997/10/14 John Castleberry / C H 2 M Hill Emily Roth / Environmental Protection Agency - Region 9 Technical Memo: Screening health risk analysis of toxic air emissions at Central Groundwater Treatment Facility (CGTF), w/attchs 2998 8 1 0218-93154 1997/10/15 North Indian Bend Wash P R P Group - Quarterly rpts summarizing activities of NIBW Participating Cos, (10/96 - 9/97), w/TLs to E Roth fr N Hazelwood 2999 8 7 0218-01804 1997/10/15 Bruce Robinson / AZ Dept of Environmental Quality Ed Pond / AZ Dept of Environmental Quality Memo: Review of interim site characterization data submittal, FS addendum 3000 8 38 0218-93298 1997/10/20 Herbert Schumann, resident / City of Tempe, AZ Roberta Riccio / Environmental Protection Agency - Region 9 Ltr: Public comments in response to public mtg held 9/17/97 (redacted, FOIA ex 6) 3001 8 42 0218-93761 1997/11/04 Emily Roth / Environmental Protection Agency - Region 9 Nichols Hazelwood / N I B W Participating Cos Ltr: Groundwater modelling & FS amendment 3002 8 46 0218-02252 1997/11/04 Lawrence Schenmeyer / Tracer Research Corp Emily Roth / Environmental Protection Agency - Region 9 TL: Air sample analysis rpts for groundwater treatment facility for 10/97, w/o attch 3003 8 61 0218-93239 1997/11/13 Susan Wienand / Harding Lawson Assoc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits FS addendum, w/attch 3004 8 65 0218-02079 1997/11/14 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits semi-annual rpt, production well discharge (4/97 - 9/97), w/attch 3005 8 127 0218-02122 1997/11/14 Titan Environmental Corp Environmental Protection Agency - Region 9 Contour maps of 10/97 groundwater levels at site, w/TL 3006 8 181 0218-02266 1997/11/19 C H 2 M Hill - Meeting agenda NIBW technical meeting, w/list of attendees (handwritten) 3007 8 200 0218-93230 1997/11/19 Environmental Protection Agency - Region 9 - Agenda & list of attendees at community participation meeting 3008 8 203 0218-93236 1997/11/24 Elizabeth Cohoon / McKenzie Laboratories, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Water monitoring rpts for City of Scottsdale for 10/97 3009 8 207 0218-93327 1997/11/25 Winifred Au / C H 2 M Hill Kenneth Elliot, Resident Ltr: Transmits TCE concentration of raw water at Scottsdale Central Groundwater Treatment Facility (CGTF), w/attchs 3010 8 211 0218-02263 1997/11/26 Nichols Hazelwood / N I B W Participating Cos Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits material distributed at 11/19/97 CIG meeting, w/attchs 3011 8 222 0218-02118 1997/12/02 - - NIBW technical meeting, conceptual flow model handouts, w/list of attendees & attchs 3012 8 233 0218-02097 1997/12/02 Emily Roth / Environmental Protection Agency - Region 9 John Wyss / Siemens Components, Inc Ltr: Approval for pilot project in area 7, w/o attch 3013 8 423 0218-93333 1997/12/03 Clement Assoc, Inc - Agenda & list of attendees for Central Groundwater Treatment Facility enhancements meeting 3014 8 426 0218-93232 1997/12/03 Emily Roth / Environmental Protection Agency - Region 9 Roger Klinger / City of Scottsdale, AZ - Dept of Water Resources Ltr: Encourages City of Scottsdale to allow source control pilot projects for area 7 & area 12 to proceed 3015 8 429 0218-93332 1997/12/10 Emily Roth / Environmental Protection Agency - Region 9 - Memo: FS amendment (FSA)/supplemental study (SS) schedule 3016 8 431 0218-93235 1997/12/15 Susan Wienand / Harding Lawson Assoc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits followup information to meeting of 12/2/97 re modeling activities for FS addendum (FSA), w/attchs 3017 8 433 0218-02271 1997/12/19 David Benjes / McKenzie Laboratories, Inc Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits City of Scottsdale water monitoring for 11/97, w/attchs 3018 8 447 0218-02080 1997/12/19 Environmental Protection Agency - Region 9 - Agenda for Central Groundwater Treatment Facility workplan meeting, w/list of attendees 3019 8 449 0218-93190 1997/12/20 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water quality data summary for sentinel wells, w/attchs 3020 8 452 0218-93194 1997/12/29 Jan Driscoll / Paradise Valley Water Co Norm James / Ryley, Carlock & Applewhite (Attorneys) Ltr: Transmits Agreement re transfer of Miller Rd treatment facility, Bill of sale & assignment of warranties signed by Ted Jones, w/encls 3021 8 456 0218-02820 1997/12/30 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 4th quarter 1997 water quality rpt, w/attch 3022 8 464 0218-02131 1998/00/00 N I B W Participating Cos - Fact Sheet: FS addendum & proposed final cleanup remedy 3023 8 466 0218-93790 1998/01/00 Salt River Project Environmental Protection Agency - Region 9 Monthly water quality data summary, sentinel wells volatile organic compounds, w/TL fr K Wolf to E Roth 2/10/98 3024 8 471 0218-93314 1998/01/05 Winifred Au / C H 2 M Hill - List of meeting attendees (handwritten) 3025 8 474 0218-93191 1998/01/06 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits 12/97 monthly water quality data summary for sentinel wells 3026 8 476 0218-93195 1998/01/06 Karol Wolf / Salt River Project Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits water level data for UAU/MAU/LAU groundwater monitoring program, w/attch 3027 8 479 0218-93196 1998/01/08 Lawrence Schenmeyer / Tracer Research Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits air sample analysis rpts for City of Scottsdale groundwater treatment facilty, w/attchs 3028 8 485 0218-02074 1998/01/10 G P I Environmental, Inc Environmental Protection Agency - Region 9 Computer Disks: Monthly data disks for 8/97, 9/97, 10/97 & 11/97 for Central Groundwater Treatment Facility (CGTF), w/TL 3029 8 532 0218-02145 1998/01/13 Stephanie Ciekot / AZ Dept of Environmental Quality Emily Roth / Environmental Protection Agency - Region 9 Ltr: Comments on conceptual groundwater modeling presentation 12/2/97 3030 8 539 0218-93187 1998/01/14 Joseph Flynn / Titan Environmental Corp Emily Roth / Environmental Protection Agency - Region 9 Ltr: Transmits contour maps of 12/97 groundwater levels, w/attchs 3031 8 541 0218-02077 1998/01/14 Errol L Montgomery & Assoc, Inc Environmental Protection Agency - Region 9 Maps: Concentration of lower, lower-middle, upper-middle & upper alluvium unit wells for 10/97 3032 8 560 0218-93520

Region 9 Topics and Programs | A-Z Index