Skip directly to: content | left navigation | search
  1. ATSDR > Public Health Assessments & Consultations

PUBLIC HEALTH ASSESSMENT

DELAVAN MUNI WELL #4
DELAVAN, WALWORTH COUNTY, WISCONSIN



CONCLUSIONS

RECOMMENDATIONS

A. Need For Follow-up Health Activities

The ATSDR Health Activities Recommendations Panel (HARP) and the Wisconsin Division of Health evaluated the data on this site to determine what needs exist for additional research and/or local education about health related concerns. Such activities could include further studies on cases of disease in the vicinity of the site or providing residents with additional information about the health effects of exposures to specific toxic chemicals coming from the site. HARP recommends ongoing community health education activities to ensure that Delavan area residents are aware of groundwater contamination.

B. Public Health Action

The following actions either have been or will be performed to meet the needs expressed by the recommendations of this public health assessment. The Wisconsin Division of Health, in cooperation with ATSDR, will:

  1. Continue to consult with the Wisconsin DNR and the U.S. EPA on public health issues that may arise as any action(s) on the site occur;

  2. Provide continuing health education as new information becomes available concerning public health issues related to the site;

  3. Continue to solicit the health concerns of citizens of the City of Delavan, directly or through the Wisconsin DNR, the Walworth County Public Health Nursing Service agency, and through public meetings;

  4. Continue to cooperate with the Wisconsin DNR and Walworth County Public Health Nursing Service agency to address environmental health and public health issues that pertain to the site and the community;

  5. Offer professional education opportunities about the site to practicing health care providers in the City of Delavan and nearby areas.

TABLES

TABLE 1: Municipal Well Contamination
Selected Samples: 1982 to 1985
City of Delavan, Wisconsin
All Concentrations in Micrograms per Liter (µg/L)

WELL DESIGNATION
AND
CHEMICALS DETECTED		 MAR
1982		 SEP
1982		 DEC
1982		 MAR
1983		 JUN
1983		 AUG
1983		 DEC
1983		 MAR
1984		 JUN
1984		 SEP
1984		 NOV
1984		 MAR
1985		 Comparison
Value
(µg/L)
WELL No. 3
Tetrachloroethylene (PCE) NT - - - - - - - - - - - 0.2a
Trichloroethylene (TCE) NT - - - 11* 230* 5* - - 15* 18* 2 3.2a
WELL No. 4
Tetrachloroethylene (PCE) 16* NT 37* 15* 22* 39* 28* - - - - - 0.2a
Trichloroethylene (TCE) 130* 130* 165* 270* 150* 1,300* 120* 27* 17* 40* 16* 3 3.2a
        * Exceeds or matches Comparison Value.
        - Not Detected.
        NT Sample Not Taken/Chemical Not Tested in Sample

        a. Oral CREG (Cancer Risk Evaluation Guideline) for 1x10-6 excess lifetime cancer risk.



TABLE 2: Municipal Well Contamination - 1982 to 1991
City of Delavan, Wisconsin
All Values in Micrograms per Liter (µg/L)

YEAR TESTED
&
CONTAMINANT
DETECTED		 WELL NO. 4 WELL NO. 3 Comparison
Valuea
(µg/L)
Lowest
Level
Detected		 Highest
Level
Detected		 Frequency
of
Detection		 Lowest
Level
Detected		 Highest
Level
Detected		 Frequency
of
Detection
1982
Tetrachloroethylene 12* 37* 6/6 - - 0/1 0.2
Trichloroethylene 60* 170* 9/9 - - 0/3 3.2
1983
Tetrachloroethylene 9* 96* 41/54 - - 0/35 0.2
Trichloroethylene 13* 1,300* 54/55 1 230* 22/35 3.2
1984
Tetrachloroethylene 2* 24* 5/10 - - 0/8 0.2
Trichloroethylene 7* 40* 14/14 5* 18* 5/12 3.2
1985
Tetrachloroethylene NT NT 0.2
Trichloroethylene 3 22* 11/13 2 20* 5/11 3.2
1986
Tetrachloroethylene - 13* 1/1 NT 0.2
Trichloroethylene 4* 7* 2/6 - 8* 1/7 3.2
1987
Tetrachloroethylene NT NT 0.2
Trichloroethylene 1 17* 11/20 4* 16* 2/16 3.2
1988
Tetrachloroethylene 1* 4* 13/41 - - 0/10 0.2
Trichloroethylene 1 9* 44/49 1 2 4/11 3.2
1989
Tetrachloroethylene 1* 2* 27/54 - - 0/13 0.2
Trichloroethylene 1 5* 47/54 1 2 12/15 3.2
1990
Tetrachloroethylene 1* 1* 4/17 - - 0/2 0.2
Trichloroethylene 1 4* 20/41 1 2 7/8 3.2
1991
Tetrachloroethylene NT NT 0.2
Trichloroethylene 1 7* 64/65 2 4* 9/10 3.2

* Matches or Exceeds Comparison Value.
NT: Contaminant Not Tested for in Collected Sample(s).
a. Oral CREG (Cancer Risk Evaluation Guideline) for 1x10-6 excess lifetime cancer risk.

Source: Simon Hydro-Search, Technical Memorandum/Report Appendix J.1. Volume II. Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.


TABLE 3: VOC Contamination in Soil Borings
from Sta-Rite Industries, Inc.
Adjacent to Delavan Well No. 4
Delavan, Wisconsin
August 1991 through April 1992
All Concentrations in µg/kg

CHEMICAL Minimum
Detected
(µg/kg)		 Maximum
Detected
(µg/kg)		 Frequency
of
Detection
Tetrachloroethylene (PCE) 2 >50,000 15/28
Trichloroethylene (TCE) 1 >8,200 26/28
          Source: Simon Hydro-Search. Technical Memorandum #1 - Source Characterization. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Tables 4-4 & 4-11. Brookfield, Wisconsin: Simon Hydro-Search. October 29, 1992.



TABLE 4: Groundwater Contamination
on Property of Sta-Rite Industries, Inc.
Adjacent to Delavan Well No. 4
Delavan, Wisconsin
October 1991 through January 1992
All Concentrations in µg/L

CHEMICAL MONITORING WELLS EXTRACTION WELLS Comparison
Valuea
(µg/L)
Minimum
Detected
(µg/L)		 Maximum
Detected
(µg/L)		 Frequency
of
Detection		 Minimum
Detected
(µg/L)		 Maximum
Detected
(µg/L)		 Frequency
of
Detection
Tetrachloroethylene (PCE) 1* 32* 10/24 8* 44* 2/9 0.2
Trichloroethylene (TCE) 1 1,700* 18/24 1 500* 8/9 3.2

    * Exceeds Comparison Value
    a. Oral CREG (Cancer Risk Evaluation Guideline) for 1x10-6 excess lifetime cancer risk.

    Source: Simon Hydro-Search, Technical Memorandum #4 - Contaminant Extent Characterization. Tables 4-4 and 4-9. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. January 18, 1993.




TABLE 5: Groundwater Extraction Well Contaminants
Sta-Rite Industries
1984 to 1991
City of Delavan, Wisconsin
All Values in Micrograms per Liter (µg/L)

STA-RITE
EXTRACTION
WELL		 Lowest
Level
Detected		 Highest
Level
Detected		 Frequency
of
Detection
WELL NO. 1
Tetrachloroethylene 6 670 11/33
Trichloroethylene 11 5,800 32/33
WELL NO. 2
Tetrachloroethylene - 10 1/32
Trichloroethylene 120 3,480 11/32
WELL NO. 3
Tetrachloroethylene - - 0/32
Trichloroethylene 10 9,400 14/32
WELL NO. 4
Tetrachloroethylene - - 0/32
Trichloroethylene 5 9,200 11/32
WELL NO. 5
Tetrachloroethylene - - 0/12
Trichloroethylene - 21 1/12
WELL NO. 6
Tetrachloroethylene - - 0/12
Trichloroethylene - 130 1/12
WELL NO. 7
Tetrachloroethylene 33 790 10/22
Trichloroethylene 36 21,029 21/22
      Source: Simon Hydro-Search. Technical Memorandum/Report Appendices, Remedial Investigation/Feasibility Study. Table 4-4, Appendix J.2, Monitoring Well Water Quality Data. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.



TABLE 6: Groundwater Contamination
D-5 & D-6 Monitoring Well Cluster
City of Delavan, Wisconsin
All Concentrations in Micrograms per Liter (µg/L)

CHEMICAL WELL D-5† WELL D-6† Comparison
Valuea
(µµg/L)
1983 1984 1991 1983 1984 1991
Tetrachloroethylene (PCE) 10* - - - - - 0.2
Trichloroethylene (TCE) 588* 670* 8* 4* 6* - 3.2
        * Exceeds or matches Comparison Value.
        - Not Detected.
        †Well D-5 is draws water from a depth of 30-50 feet and D-6 is draws water from a depth of 100-110 feet.
        a. Oral CREG (Cancer Risk Evaluation Guideline) for 1x10-6 excess lifetime cancer risk.

        Source: Simon Hydro-Search, Technical Memorandum/Report Appendices. Appendix J.2, Volumes II. Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.




TABLE 7: Trichloroethylene Concentrations
Simultaneous Water Samples - 1982 to 1991
Sta-Rite Extraction Wells & Municipal Storm Sewers
City of Delavan, Wisconsin
All Concentrations in Micrograms per Liter (µg/L)

WELL/SAMPLE
DESIGNATION		 NOV
1982		 NOV
1984		 DEC
1984		 SEP
1985		 APR
1986		 SEP
1986		 JUN
1988		 NOV
1988		 JUN
1989		 MAR
1990		 SEP
1990		 NOV
1991		 DEC
1991
Extraction Well 1 n/a 4,700 2,900 580 110 140 35 273 115 26 14 20 15
Extraction Well 2 n/a 3,480 0 1,000 0 620 320 - 131 0 0 210 268
Extraction Well 3 n/a 2,300 0 210 0 140 57 152 47 0 0 14 10
Extraction Well 4 n/a 170 0 47 0 26 9 - 9 - 2 0 1
Extraction Well 5 n/a 21 190 - - - - 9 0 - - 0 1
Extraction Well 6 n/a - - - - - - - 0 - - 0 0
Extraction Well 7 n/a n/a n/a 900 - 3,300 2,400 5,310 685 108 52 350 241
Outfall 001 5,000 - - - 16 19 2 - - 1 - 1 3
SS-1 - - - - - - - - 39 22 21 21 -
SS-2 - 82 120 220 100 38 24 14 9 2 0 5 5
      - Sample Not Collected
      n/a Sample not available: Well not constructed.



TABLE 8: Trichloroethylene Concentrations - 1991 & 1992
Municipal Wells and Water Supply Distribution Points
City of Delavan, Wisconsin
All values in Micrograms per Liter (µg/L)

Sampling
Date		 Well No. 3 Well No. 4 825 E.
Geneva		 1441 E.
Wisconsin
7/01/91 3 4 2 2
8/12/91 2 3 1 1
9/09/91 - 2† - -
12/16/91 4 4 4 4
11/11/91 4 3 3 3
10/07/91 4 4 2 3
1/20/92 4 2 2 3
3/09/92 3† 3† - -
            - Trichloroethylene not detected in sample.
            † Water pumped from well not used by Delavan water supply system.
            Source: Gabriel - Midwest, Ltd., laboratory reports submitted to the City of Delavan.


PREPARERS OF REPORT

Henry Nehls-Lowe, MPH
Epidemiologist
Health Hazard Evaluation Unit
Bureau of Public Health
Division of Health
Wisconsin Department of Health & Family Services

ATSDR Senior Regional Representative

Louise Fabinski
Regional Services
Region V
Office of the Assistant Administrator


SELECTED REFERENCES

  1. ATSDR (Agency for Toxic Substances and Disease Registry, Public Health Service, U.S. Department of Health & Human Services). Preliminary Public Health Assessment for Delavan Municipal Well No. 4. Prepared for ATSDR by the Division of Health, Wisconsin Department of Health & Social Services. Atlanta, Georgia: ATSDR, May 25, 1989.

  2. ATSDR. Toxicological Profile for Trichloroethylene. TP-92/19. Atlanta, Georgia: ATSDR. April 1993.

  3. ATSDR. Toxicological Profile for Tetrachloroethylene. TP-92/18. Atlanta, Georgia: ATSDR. April 1993.

  4. ATSDR. Decision Statements for Reviewing Health Assessments. Review and Comment Draft. Atlanta, Georgia: ATSDR. October 21, 1991.

  5. ATSDR. Public Health Assessment Guidance Manual. NTIS order no. PB92-147164. Atlanta, Georgia: ATSDR. March 1992.

  6. ATSDR, Division of Health Studies. National Exposure Registry: Trichloroethylene Subregistry, Baseline Technical Report. Atlanta, Georgia: ATSDR. May 1993.

  7. ATSDR. Site Review and Update for Delavan Well No. 4, Delavan, Walworth County, Wisconsin. Atlanta, Georgia: ATSDR. September 30, 1993.

  8. BT2, Inc. Phase II Investigation Report, Delavan Mobil (338 E. Walworth Avenue), Delavan, Wisconsin. Madison, Wisconsin: BT2. April 1992.

  9. CACI Marketing Systems, Inc. The Sourcebook of Demographics and Buying Power for Every ZIP Code in the USA. Sixth Edition, Second Printing. Fairfax, Virginia: CACI, 1989.

  10. CACI Marketing Systems, Inc. The Sourcebook of ZIP Code Demographics, 1990 Census Edition - Volume One. Fairfax, Virginia: CACI, 1991.

  11. City of Delavan, Director of Public Works. Correspondence to Southeast District DNR Office listing potential sources of contamination in Well No. 4. December 22, 1982.

  12. City of Delavan, Director of Public Works. Correspondence to Sta-Rite reporting results of 6/8/83 well water testing. June 17, 1983.

  13. City of Delavan, Director of Public Works. Response to University of Wisconsin - Milwaukee survey of municipal water supply contamination. Survey completed by George Anderson, Superintendent of the Delavan Water-Sewer Department. March 20, 1986.

  14. Crispell-Snyder, Inc. Correspondence to DNR. December 28, 1989.

  15. Crispell-Snyder, Inc. Well No. 4 Contamination Analysis Report, Delavan, Wisconsin. Elkhorn, Wisconsin: Crispell-Snyder, April 1990.

  16. Dawson B, Johnson PD, Goldberg SJ, and Ulreich JB. Cardiac Teratogenesis of Trichlorethylene and Dichloroethylene in a Mammalian Model. J Am Coll Cardiol. 16:1304-1309, 1990.

  17. Department of Development. County Economic Profile for Walworth County. Madison, Wisconsin: DOD. August 1992.

  18. DOH (Wisconsin Division of Health, Wisconsin Department of Health and Social Services). File Memorandum of Site Visit on April 13, 1993. April 14, 1993.

  19. DOH. File Memorandum of Telephone Conversation with Sally Sarnstrom, Department of Public Instruction. April 14, 1993.

  20. DOH. File Memorandum of Telephone Conversation with Robert Schutt, Director of Utilities, City of Delavan. October 28, 1993.

  21. DOH. File Memorandum of Telephone Conversation relating to construction Highway 43. November 23, 1993

  22. DOH. Correspondence to the City of Delavan, regarding contamination of a spring. May 1, 1995.

  23. DOH. Correspondence to Homeowner of 6442 State Highway 11, Delavan, Wisconsin. August 21, 1995.

  24. DNR (Wisconsin Department of Natural Resources). "Synthetic Chemicals Found in 51 Community Water Supplies", press release issued on December 2, 1982.

  25. DNR. Correspondence to Ten Delavan Businesses in the vicinity of Well No. 4, from Southeast DNR District Office. February 15, 1983.

  26. DNR. Internal Memorandum from J. Krahling to K. Satyshur, Water Supply - Southeast District Office. July 20. 1983.

  27. DNR. Correspondence to Sta-Rite Industries in response to Donohue Groundwater Modeling report of December 1983. March 9, 1984.

  28. DNR. Report on an Investigation of the Public Water Supply at Delavan, Wisconsin. Central DNR Office, Bureau of Water Supply. Madison, Wisconsin: DNR. December 28, 1988.

  29. DNR. Correspondence from Nancy Gloe to Lyle Smith, City of Delavan (Appendix B: Crispell-Snyder report of April, 1990) approving temporary Groundwater Discharge permit. November 24, 1989.

  30. DNR. Correspondence from L. Boushon to City of Delavan in response to Crispell-Snyder report of April, 1990. May 14, 1990.

  31. DNR. Wisconsin Pollutant Discharge Elimination System permit for Sta-Rite Industries, Delavan, Wisconsin. Permit No. WI-0055816-3. October 3, 1990.

  32. DNR. Correspondence to Sta-Rite Industries on review of the Site Evaluation Report. October 20, 1990

  33. DNR. Delavan Well No. 4: Superfund Site Community Relations Plan. Madison, WI: Wisconsin Department of Natural Resources. July 22, 1991.

  34. DNR. Internal memorandum to file reporting May 5, 1992, site visit of Pam Mylotta to Mobil Oil Bulk Plant on Ann Street, Delavan, Wisconsin. May 6, 1992.

  35. DNR. Correspondence to Henry Nehls-Lowe, from Peter Wood, regarding a private well assessment of the City of Delavan, Wisconsin. May 4, 1994.

  36. DNR. Correspondence to Henry Nehls-Lowe, from Pam Mylotta, regarding Environmental Repair Projects in Delavan, Wisconsin. July 15, 1994.

  37. DNR. Correspondence to Henry Nehls-Lowe, from Gina Keenan, regarding Leaking Underground Storage Tank sites in Delavan, Wisconsin. July 26, 1994.

  38. DNR. Correspondence to private homeowner of N4197 County Trunk Highway P, Delavan, Wisconsin, from Barbara Wolf, Water Supply Specialist, Southeast District DNR Office. July 8, 1994.

  39. DNR. Correspondence to private homeowners on Comus Drive, Delavan, Wisconsin, from Sharon Schaver, Hydrogeologist, Southeast District DNR Office. August 30, 1994.

  40. Donohue (Donohue & Associates, Inc.). Investigation of Solvent Contamination in City of Delavan, Wisconsin, Well No. 4. Prepared for Sta-Rite Industries. Sheboygan, Wisconsin: Donohue. May 1983.

  41. Donohue. Groundwater Modeling of Solvent Contamination Near City of Delavan Well No. 4. Prepared for Sta-Rite Industries. Sheboygan, Wisconsin: Donohue, December 1983.

  42. Donohue. Remedial Action at Plant 2 Sump, Sta-Rite Industries, Delavan Operations. Prepared for Sta-Rite Industries, Delavan, Wisconsin. Sheboygan, Wisconsin: Donohue. January 1984.

  43. Donohue. Groundwater Monitoring and Remedial Action-Interim Report to DNR: Sta-Rite Industries Water Equipment Division, Delavan, Wisconsin. Sheboygan, Wisconsin: Donohue. April 1984.

  44. Donohue. Additional Site Investigations and Remedial Action Recommendations: Sta-Rite Industries Water Equipment Division, Delavan, Wisconsin. Sheboygan, Wisconsin: Donohue. June 1984.

  45. Enviro-Analysts, Inc. Correspondence to Sta-Rite Industries reporting the results of sanitary and stormwater discharge monitoring. December 15, 1982.

  46. EPA (U.S. Environmental Protection Agency). Aerial Photographic Analysis of Nine Priority CERCLA Hazardous Waste Sites. Southern Wisconsin. EPA Region 5. Prepared by Lockheed Environmental Programs. Contract No. 68-03-3245. Las Vegas, Nevada: EPA. May 1985.

  47. EPA. National Priorities List Sites: Wisconsin. EPA/540/4-90/049. September 1990.

  48. Foth & Van Dyke, and Associates, Inc. Baseline Risk Assessment Plan: City of Delavan Superfund Project. Prepared for the Wisconsin Department of Natural Resources. Green Bay, Wisconsin: Foth & Van Dyke. October 1991.

  49. Goldberg SJ, Lebowitz MD, Graver EJ, and Hicks S. An Association of human congenital cardiac malformations and drinking water contaminants. J Am Coll Cardiol. 16:155-164, 1990.

  50. Graef, Anhalt, Schloemer & Associates, Inc. Tank Removal Assessment of Campbell's Mobil, 746 East Geneva Street, Delavan, Wisconsin. Prepared for Cambeck Petroleum Corporation. Project 928019. Milwaukee, Wisconsin: Graef, Anhalt, Schloemer & Associates. February 1993.

  51. Hydro-Search, Inc. Correspondence from J. Johanson to T. Wentland, Wisconsin DNR. Second Quarter Progress Report for Source Area Remediation at the Sta-Rite Facility in Delavan, Wisconsin. April 12, 1995

  52. Janesville Gazette. "Well Contamination Worsens in Delavan". August 12, 1982.

  53. Layne GeoSciences, Inc. Site Investigation Report for Country Ford Lincoln-Mercury, Delavan Wisconsin. Prepared for Country Ford Lincoln-Mercury and Wisconsin Department of Natural Resources. Project No. 61.2460. Pewaukee, Wisconsin: LGI. October 1991.

  54. Simon Hydro-Search, Inc. Pumping Tests and Hydraulic Analysis Report for Delavan City Well #4. Prepared for Sta-Rite Industries, Inc. Project No. 351E12113. Brookfield, Wisconsin: Simon Hydro-Search. February 2, 1990.

  55. Simon Hydro-Search. Pumping Test and Hydraulic Analysis Report, City Well #4, Delavan, Wisconsin. Prepared for Sta-Rite Industries, Inc. Project No. 351E12113. Brookfield, Wisconsin: Simon Hydro-Search. February 15, 1990.

  56. Simon Hydro-Search. Task 1 - Site Evaluation Report, Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Project No. 350115013. Brookfield, Wisconsin: Simon Hydro-Search. October 25, 1990.

  57. Simon Hydro-Search. Task 2 - Project Work Plans, Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Project No. 350115013. Brookfield, Wisconsin: Simon Hydro-Search. February 13, 1991.

  58. Simon Hydro-Search. Technical Memorandum/Report Appendices. Volumes I & II. Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.

  59. Simon Hydro-Search. Technical Memorandum #2 - Migration Pathway Assessment, Remedial Investigation/Feasibility Study. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.

  60. Simon Hydro-Search. Technical Memorandum #3 - Baseline Risk Assessment Data Summary. Prepared for Sta-Rite Industries, Inc. Project No. 350115013. Brookfield, Wisconsin: Simon Hydro-Search. July 17, 1992.

  61. Simon Hydro-Search. Technical Memorandum #1 - Source Characterization. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. October 29, 1992.

  62. Simon Hydro-Search. City of Delavan Well No. 3; Alternative TCE Sources. Correspondence to Colin Beverage, Sta-Rite Industries, Delavan, Wisconsin. November 3, 1992.

  63. Simon Hydro-Search. Technical Memorandum #4 - Contaminant Extent Characterization. Prepared for Sta-Rite Industries, Inc. Contract SF-90-02. Brookfield, Wisconsin: Simon Hydro-Search. January 18, 1993.

  64. Simon Hydro-Search.  Remedial Investigation of the Sta-Rite Industries Site, Delavan, Wisconsin. Prepared for Sta-Rite Industries, Inc. Project No. 350115013. Brookfield, Wisconsin: Simon Hydro-Search. March 12, 1993.

  65. Simon Hydro-Search. Remedial Design / Remedial Action Project Plans, Interim Remedial Measure, Sta-Rite Industries, Inc. Prepared for Sta-Rite Industries, Inc., of Delavan, Wisconsin. Project No. 350115013. Brookfield, Wisconsin: Simon Hydro-Search. March 18, 1993.

  66. Sta-Rite Industries, Inc. Investigation of Trichloroethylene Contamination Problem, City Well #4. Correspondence from LaChapell to DNR. January 11, 1983.

  67. Sta-Rite Industries, Inc. Correspondence from D. LaChapell to City of Delavan summarizing investigations and remediation. October 10, 1985.

  68. STS Consultants Ltd. Remedial Investigation Report, Holiday Service Station, Delavan, Wisconsin. Prepared for Holiday Company, Minneapolis, Minnesota. Project 83481XG. Milwaukee, Wisconsin: STS Consultants. August 8, 1991.

  69. STS Consultants Ltd. Application to Wisconsin DNR to Treat or Dispose of Petroleum Contaminated Soil for LUST Remediation Site Owned by Holiday Service Station in Delavan Wisconsin. February 14, 1992.

  70. Warzyn Engineering, Inc. Correspondence to City of Delavan reporting results of soil and water testing in the vicinity of well No. 4. February 16, 1983.

  71. Warzyn Engineering, Inc. Correspondence to City of Delavan in response to Donohue Groundwater Modeling report of December 1983. March 1, 1983.

  72. Warzyn Engineering, Inc. Summary of Reinstallation of Remedial System and Soils Investigation - Ann Street Bulk Plant, Delavan, Wisconsin. Prepared for Mobil Corporation, Schaumburg, Illinois. Report 12837. Madison, Wisconsin: Warzyn, April 1987.

  73. Warzyn Engineering, Inc. Results of Aquifer Testing: Former Mobil Oil Bulk Plant, BP #98-216, Delavan, Wisconsin. Madison, Wisconsin: Warzyn, September 1989.

Next Section          Table of Contents



Agency for Toxic Substances and Disease Registry, 1825 Century Blvd, Atlanta, GA 30345
Contact CDC: 800-232-4636 / TTY: 888-232-6348 
USA.gov: The U.S. Government's Official Web Portal
DHHS
Department of Health and Human Services