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PRELIMINARY PUBLIC HEALTH ASSESSMENT

NUTMEG VALLEY ROAD
WOLCOTT, NEW HAVEN COUNTY, CONNECTICUT


CONCLUSIONS

From the information reviewed, this site is considered by ATSDR and CT DHS to be a Public Health Hazard. There is evidence that exposures have occurred, are occurring, or are likely to occur in the future at concentrations in the environment that, upon long-term exposure can cause adverse health effects to the receptor population and these concentrations exceed Minimal Risk Levels established in the ATSDR Toxicological Profiles or Connecticut State "Action Levels". Exposure to the chemicals listed in the Environmental Contamination and Other Hazards section may be occurring and has occurred in the past via ingestion of contaminated groundwater, inhalation of vapors and aerosols formed by industrial or domestic uses of contaminated groundwater, dermal absorption of contaminated groundwater by hygienic or recreational uses, ingestion and inhalation of contaminated soil particulates, and dermal absorption from contact with contaminated soils and sludges. The current use of private wells for domestic or industrial activities makes contamination of groundwater a potential health concern for residents with access to either aquifer at this site and employees of the site whose companies still use water from private wells.

Surface waters in Tannery Brook and Mad River, primarily surface water sediments, have not been characterized with respect to their potential for and extent of contamination. Complaint reports filed at the CT DEP indicate that these waters have been severely impacted, to the point of complete discolorization, from alleged dumping of waste impoundment materials. The impact from that contamination and the continued migration of contaminants in other site related soil and groundwater areas, toward surface water areas, suggests that information to substantiate the quality of surface water and surface water sediments needs to be developed. Children have access to these surface waters. It is necessary to ensure that these children are not playing in contaminated surface water sediments.

Aerial photographs have identified historical surface impoundments and stained surface soils within the site. The effects of periodic flooding on the migration patterns of site contaminants are not known. Information is insufficient to determine the extent and impact of soil contamination within this site. Historical analyses of known contamination scenarios have shown appreciable migration of contaminants in the vicinity of the site and in some cases, complete migration of contaminants from the source area. This information suggests that data on the extent of subsurface contamination still existing as a potential source of groundwater contamination needs to be developed for this site.

Studies mentioned in the Off-Site Contamination Subsection of this Health Assessment show that additional sources of contamination in geographic areas around "Nutmeg Valley" have contributed to groundwater contamination in the commercialized and industrialized areas of Wolcott. It would be advantageous to consider remedial strategies which take into consideration the need to supply clean water to all town residents about the Route 69 corridor where groundwater has been documented, and not just to those directly affected by contamination at the "Nutmeg Valley" site.

Installation of the public water system extended into "Nutmeg Valley" is not, as it presently exists, sufficient to prevent human exposure from contaminated groundwater in that 1) the system is not accessible to all residents of "Nutmeg Valley," 2) access to the public water supply is less than 14 percent of property owners or tenants of "Nutmeg Valley" and 3) property owners or tenants who have been connected to public water are still using their contaminated wells for "industrial purposes".

A large portion of the population within "Nutmeg Valley" consists of those employees who work within "Nutmeg Valley." Health outcome data gathered on residents from within this site may not represent the local work force. Data on the working population was not available and as such, the assessment of adverse health effects, health outcome data, and community concerns at this site is not complete.

Restriction from the many properties which pose both physical and chemical hazards is not adequate to prevent access to these hazards by the local community.

Information from a survey mailed to local residents indicates that a large percentage of the population of "Nutmeg Valley" is unaware of the chemical and health related issues associated with this NPL Superfund site and as such, it can be concluded that an Outreach Program and Communication Package, designed to educate the population about their risks and responsibilities, would be an important tool in protecting human health within the "Nutmeg Valley" site.

Data gaps from within this site include, but are not limited to, background information on all businesses (past and present), characterization of contamination (types, locations, migration patterns, degradation, etc.,) in soils, aquifers, private wells, surface waters, surface water sediments, health outcome data and health concerns of the work force, data defining Mad River as a hydrogeologic barrier to contaminant migration, data defining the quality of groundwater in the bedrock aquifer south and down gradient of the site, identification of historical waste impoundments, and follow-up data on the use of contaminated wells.

The complexity of industrial activities within this site, the required time to collect appropriate data necessary to characterized the status of contamination within this site, the cost of addressing recommendations made in this public health assessment, the limited funds available for addressing the recommendations made in this public health assessment, and the litigation time necessary to identify those people financially responsible for cleaning up the contamination within this site support the conclusion that it will be some time before this site can be fully attended to. It is important to increase public awareness to the potential health risks from within this site so that intelligent and informed decisions can be made by the residents and workers within this site to protect their health as clean-up activities progress.


RECOMMENDATIONS

  1. All residents within "Nutmeg Valley" should have a water analysis completed to identify the present quality of groundwater used for domestic purposes. This analysis should contain parameters outlined in EPA's Hazardous Substance List or Target Compound List, which ever is more appropriate.

  2. Residents with wells contaminated above the levels of health concern should be provided with alternate water supplies.

  3. Private wells of residents living within the site should be placed on a routine monitoring program to ensure groundwater quality. Monitoring should occur whether the wells have exhibited contamination in the past or not.

  4. Physical barriers or effective warning restrictions should be in place to prevent local residents and casual passers-by from gaining access to the chemical and physical hazards of properties included within "Nutmeg Valley."

  5. An investigation into the industrial uses of groundwater from contaminated wells of businesses located within "Nutmeg Valley" should be conducted to ensure that improper use of these contaminated wells does not pose an additional risk to human health.

  6. Sampling of Tannery Brook, Mad River and their respective tributaries should be performed to determine both the extent of surface water and surface water sediment contamination for contaminants identified in EPA's Hazardous Substance or Target Compound list.

  7. Sampling of soil and groundwater should be performed at strategic points (locations and depths) about the site and around the site perimeter to assess the extent and migration patterns of contamination for contaminants identified in EPA's Hazardous Substance or Target Compound list.

  8. Information should be obtained to identify the dates of implementation of the Waterbury public water supply to residents down the hydrogeologic gradient from "Nutmeg Valley".

  9. A focus should be directed toward the long term problem of groundwater contamination in the Route 69 corridor. Reliance on groundwater as a drinking water supply is predominant throughout the town. Sources of groundwater contamination exist both on and off the "Nutmeg Valley" site. A Groundwater Protection Program and a Public Water Supply Initiative need to be considered for the Route 69 corridor and not just for those affected by the "Nutmeg Valley" site.

  10. Residents, employees, and property owners of "Nutmeg Valley" need to be made aware of the activities, potential risk factors, exposure minimization techniques and support resources associated with "Nutmeg Valley" as a NPL site. It is necessary to develop a communication package for these people to raise consciousness, offer assistance, address public health concerns, and gain public support and public trust of those people that may be at risk from exposure to contaminants in the "Nutmeg Valley" area.

  11. To characterize the impact this site may present to the integrity of human health, the health status and health concerns of people who work in "Nutmeg Valley" need to be assessed. Extending a communication package to the local work force would alert people to the potential risks posed by contamination within this site, offer assistance to those who have health concerns, and prevent additional exposures.

Health Activities Recommendation Panel (HARP) Recommendation

The data and information in the public health assessment for the Nutmeg Valley Road site, Wolcott, Connecticut, has been evaluated by ATSDR's HARP for appropriate follow-up with respect to health activities. The Panel recommended that follow-up health activities would be appropriate. Specifically, after further evaluation a decision will be made as to the need for a disease and symptom prevalence study. Also, it would be appropriate to evaluate the individual cases of kidney cancer for possible occupational exposure and pathological classification. Furthermore, an environmental professional health education program is also recommended to advise the public health professional and the local medical community of the nature and possible consequences of exposure to contaminants at the site.


PUBLIC HEALTH ACTION PLAN

Based on community concerns and the HARP recommendation, ATSDR has developed the following Public Health Action Plan. This Plan lists those actions planned or to be undertaken by specific government agencies as a result of the recommendations of this public health assessment.

Public Health Actions Taken

The CT DEP has provided alternate water to those residences whose drinking water contained contaminants at levels of public health concern.

Public Health Actions Planned

ATSDR, in cooperation with the CT DHS, will take the following actions:

  1. Conduct an environmental health educational program to educate local health professionals and local citizens about the potential risks found at the Nutmeg Valley NPL site. Part of this program is designed to advise the public health professional and the local medical community of the nature and possible consequences of exposure to contaminants at the Nutmeg Valley site. The value of obtaining a complete and accurate exposure history will be stressed as part of this program. In addition, information that is provided on the contaminants of concern may include, but not limited to, the physical nature of the contaminant, potential exposure pathways (i.e., soil, water, air, and food) and the exposure routes (i.e., inhalation, ingestion, and dermal contact), potential health effects, symptoms of exposure and testing and treatment, if known. This program will be conducted by CT DHS in conjunction with ATSDR's Division of Health Education and the local medical community.

  2. Evaluate the need for a symptom disease prevalence study and for further investigation of individual kidney cancer cases.

The local health department (Chesprocott Health District) will conduct a survey of local well water use in and near the Nutmeg Valley site and will sample those private wells that have not been previously tested.

The U.S. EPA will limit access to sites with highly contaminated soil (i.e., lagoons) or remove that soil within a short timeframe.


CERTIFICATION

This public health assessment was prepared by the Connecticut Department of Health Services under a cooperative agreement with the Agency for Toxic Substances and Disease Registry (ATSDR). It is in accordance with approved methodology and procedures existing at the time the public health assessment was initiated.

Gregory V. Ulirsch
Technical Project Officer, SPS, RPB, DHAC


The Division of Health Assessment and Consultation (DHAC), ATSDR, has reviewed this public health assessment and concurs with its findings.

Division Director, DHAC, ATSDR


PREPARER OF REPORT

Connecticut Cooperative State Representative
Susan Yurasevecz
Environmental Epidemiologist
Division of Environmental Epidemiology
and Occupational Health
Connecticut Department of Health Services


ATSDR REGIONAL REPRESENTATIVE

Louise House
Regional Operations
Office of the Assistant
Administrator, ATSDR


ATSDR TECHNICAL PROJECT OFFICER

Gregory Ulirsch
Technical Project Officer
Division of Health Assessment
and Consultation, Remedial Programs Branch


REFERENCES

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for Benzene, Atlanta, GA, United States Public Health Service l989 PB/89/209464/AS.

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for Carbon Tetrachloride, Atlanta, GA, United States Public Health Service l989 PB/90/168196/AS.

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for Cyanide, Atlanta, GA, United States Public Health Service 1990 PB/90/162058/AS.

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for 1,2-Dichloroethane, Atlanta, GA, United States Public Health Service l990 PB/90/171422/AS.

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for Tetrachloroethylene, Atlanta, GA, United States Public Health Service 1990.

Agency for Toxic Substances and Disease Registry, Toxicologic Profile for Trichloroethylene, Atlanta, GA, United States Public Health Service 1990 PB/90/127523/AS.

Department of Environmental Protection, Automotive Service: Operation Inspection Form: King's Autobody, Hartford, CT.Department of Environmental Protection, Debriefing Memo: Care Manufacturing Co., Hartford, CT, l989.

Department of Environmental Protection, Debriefing Memo: Maaco-Dream AutoColor, Hartford, CT, l990.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Delson Hinge Corp., Hartford, CT, l977.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Edson Manufacturing Co. Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Electrotherm Wire Company, Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Joma Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Line Manufacturing, Inc., Hartford, CT, l980.

Department of Environmental Protedction, Hazardous Materials Management Unit Inspection Report: Mailly Manufacturing Co., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Mark Eyelet and Stamping, Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Maur Mel Automatics, Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Metalmold, Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Nutmeg Screw Machine Products, Corp., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Raypax Manufacturing Company, Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Secondaries, Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: The National Die Co., Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Materials Management Unit Inspection Report: Waterbury Heat Treating, Inc., Hartford, CT, l980.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Brave Equipment Co., Hartford, CT, l986.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Dover Manufacturing Corp., Hartford, CT, l986.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Dream Auto Colors, DBA Maaco Auto, Hartford, CT, l986.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Dream Auto Color, DBA Maaco Auto and Paint, Hartford, CT, l987.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Electropower Inc., Hartford, CT, l984.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Joma Inc., Hartford, CT, l983.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: P.F. Industries, Inc., Hartford, CT, l988.

Department of Environmental Protection, Hazardous Waste Inspection Checklist: Richards Metal Products, Inc., Hartford, CT l987.

Department of Environmental Protection, Industrial Survey: Care Manufacturing Co., Hartford, CT, l987.

Department of Environmental Protection, Preliminary Assessment Report: P.F. Industries, Hartford, CT, l989.

DeNicola L., Chesprocott Health District Water Supply Study, Cheshire, CT: Chesprocott Health District, l985.

Environmental Monitoring Systems Laboratory, Site Analysis, Nutmeg Valley, Wolcott, Connecticut, Las Vegas, NY, United States Environmental Protection Agency 1988 TS-PIC-88056.

Environmental Protection Agency, Region 1, Preliminary Assessment: Alpine Electronic Company, Boston, MA: Environmental Protection Agency, l980.

Environmental Protection Agency, Region 1, Preliminary Assessment: Dover Manufacturing Corp., Boston, MA, Environmental Protection Agency, l985.

Environmental Protection Agency - Region 1, Preliminary Assessment: Dover Manufacturing Corp., Boston, MA, Environmental Protection Agency, l986.

Environmental Protection Agency Region 1, Preliminary Assessment: Line Manufacturing, Inc., Boston, MA, Environmental Protection Agency, l984.

Environmental Protection Agency, Region 1, Preliminary Assessment Mailly Manufacturing Company, Boston, MA, Environmental Protection Agency, l984.

Environmental Protection Agency Region 1, Preliminary Assessment: Maur-Mel Automatics, Boston, MA, Environmental Protection Agency, l984.

Environmental Protection Agency, Region 1, Preliminary Assessment: Nutmeg Screw Machine Products, Boston, MA, Environmental Protection Agency, l984.

Environmental Protection Agency Region 1, Hazard Ranking System: Nutmeg Screw Machine Products Co., Boston, MA, Environmental Protection Agency, l985.

Environmental Protection Agency, Region 1, Preliminary Assessment: Richards Metals, Inc., Boston, MA, Environmental Protection Agency, l984.

Federal Register, National Primary Drinking Water Regulations; Synthethic Organic Chemicals, Inorganic Chemicals and Microorganisms; Proposed Rule, November 13, l985 Environmental Protection Agency 40CFR Part 141.

Federal Register, National Primary Drinking Water Regulations; Volatile Synthetic Organic Chemicals; Final Rule and Preposed Rule, November 13, l985 Environmental Protection Agency 40CFR Parts 141 & 142.

Goodkind and O'dea, Inc., Engineering Report on Studies of Contaminated Wells and Supply of Potable Water for the Southerly Industrial Area Along Route 69 in the Town of Wolcott, Connecticut, l986.

Harrison, E.Z., Hartford, CT: State of Connecticut Department of Environmental Protection, l981.

HRP Associates, Inc., First Year Annual Report on Groundwater Monitoring for Par Finishing Company, New Britain, CT l985 HRP #88-88-16.

HRP Associates, Inc., First Year Annual Ground Water Monitoring Report: Waterbury Heat Treating, Inc., New Britain, CT l988, HRP #WC-WHT-0.

HRP Associates, Inc., Fourth Year Annual Ground Water Monitoring Report: Former Par Finishing Co., New Britain, CT l988, HRP #GW-PAR-2.

HRP Associates, Inc., Scope of Study: Joma, Inc., Proposed Remedial Actions, New Britain, CT, l987.

HRP Associates, Inc., Scope of Study for Waterbury Heat Treating, Inc., New Britain, CT l986, HRP #WC-WHT-0.

HRP Associates Inc., Soil Contamination Investigation Report and Recommendations: Electro Power, Inc., New Britain, CT, l984, HRP #84-121-10.

ICAIR Life Systems, Inc., Summary of State and Federal Drinking Water Standards and Guidelines, Cleveland, OH, Chemical Communication Subcommittee Federal-State Toxicology and Regulatory Alliance Committee (FSTRAC) l990.

NUS Corporation, Final Inspection Report, Line Manufacturing, Inc., New Bedford, MA, l986, TDD #F1-8506-15.

NUS Corporation, Final Preliminary Assessment: Electro Power, Inc., Bedford, MA, l988, TDD #F1-8801-32.

NUS Corporation, Nutmeg Screw Machine Products Company Final Site Inspection Report, New Bedford, MA, l985, TDD # F1-8503-02.

NUS Corporation, Superfund Division, HRS Document Package for Nutmeg Valley Road, Wolcott, Connecticut, Evaluation of Nutmeg Screw Machine Products Company, New Bedford, MA Region 1 United States Environmental Protection Agency, Site Response Section l986 TDD # F1-8503-02.

Office of Health Assessment, Preliminary Health Assessment for Nutmeg Valley, Agency for Toxic Substances and Disease Registry, l988.

United States Geological Survey, Bedrock Geology of the Southington, Connecticut Quadrangle, Denver, Co, United States Department of the Interior, Geological Survey, l963.

United States Geological Survey, Southington, Connecticut and Waterbury, Connecticut Quadrangles, 7.5 Minute Series (topographic), United States Department of the Interior, Geological Survey, l968 Photorevised l984.

United States Geological Survey, Surficial Geology of the Southington, Connecticut Quadrangle, Denver, CO, United States Department of the Interior, Geological Survey l961.

United States Geological Survey, Water Resource Inventory of Connecticut, Part 5, Lower Housatonic River Basin, Denver CO, United States Department of the Interior, Geological Survey, l974.


APPENDIX A: INFORMATION ON NUTMEG VALLEY PROPERTIES

Nutmeg Valley Properties Map
Nutmeg Valley Properties Map

The following information is a brief summary of each of these "Nutmeg Valley" properties. These properties are identified on the map included in Appendix A.

Property 1

Secondaries, Inc., a small manufacturing facility, has been producing flanges and hinges since 1962. A 1980 inspection report conducted by CT DEP found that although petroleum naptha was identified as a waste product in the processes of machining and degreasing, there was no evidence of on-site disposal. This site presently uses water from a private well.

Property 2

P.F. Industries, Inc., a small and now inactive machine shop once known to cut and thread steel, brass, and aluminum bar stock into parts, began its business in 1984. Wastes generated in the processes of degreasing and cleaning included methylene chloride and kerosene/oil mixtures. A Preliminary Assessment was conducted in 1989 by the CT DEP under Connecticut's Multi-Site Cooperative Agreement (MSCA) with EPA. Although there was no evidence nor indication that this site contributed to groundwater contamination, location within the "Nutmeg Valley" study area suggests a more thorough investigation is needed. A medium priority Site Investigation was suggested by CT DEP to assess P.F. Industries' relationship with the NPL site. Also included at this property is the Raypax Manufacturing Company, a small manufacturing facility, which has been producing screw machine parts since 1960. A 1980 inspection report conducted by the CT DEP identified the wastes generated during processing as mineral spirits, oils, and tumbling waste (metal chips & dust). Although no evidence of on-site disposal was found, approximately seven years of historical solvent disposal has been recorded. This site presently utilizes water from a private well.

Property 3

Marson Fastener Corporation - No data available. The property uses water from a private well.

Property 4

Roann Electronics, Inc. - No Data. This site presently utilizes water from a private well.

Property 5

Electro Power, Inc., a small sales and service facility, has been dealing with AC/DC electrical motors and industrial motor drives since 1970. A 1988 Preliminary Assessment was conducted by NUS Corporation under Technical Directive Document (TDD) F1-8801-32 of the Environmental Protection Agency (EPA). Wastes identified at Electro Power included grease-sludge and oil.

A 15' x 30' area of ground heavily stained by leakage from a hole in the in the wall of a degreaser tank, as well as unlabeled leaking drums, were observed during this assessment. PCB's (200 ppm) were detected in soil that has since been removed. Due to known soil contamination caused by on-site waste disposal, NUS/FIT recommended that a high priority screening Site Inspection be conducted in order to further assess the site. This property presently utilizes water from a private well.

Property 6

Infodex is the current facility located on property previously occupied by Venus Consolidated, Inc., and as such, EPA's hazardous waste generator's installation ID number has changed from CTD047550611 (Venus) to CTDOO1166222 (Infodex). No information can be found on file for Infodex. Partial information on Venus Consolidated Inc. reveals an Environmental Site Evaluation was conducted by HRP Associates relative to the Super Lien Regulations covered in substituent House Bill 7764 of the Connecticut General Statutes. Levels of trichloroethylene (71 ppb and 90 ppb) were detected in groundwater and soil, respectively. Tetrachloroethylene (7.2 ppb) was also detected in groundwater. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 7

Richard's Metal Products, Inc., a small manufacturing and job shop, has been producing drawn metal shells since 1965. An EPA Preliminary Assessment conducted in 1984 identified several barrels of oil-soaked rags in drums disposed of on company property. Priority for Site Inspection was considered low as oil soaked rags would not pose much threat of contamination. In 1987 a hazardous waste inspection was conducted by CT DEP, identifying six full drums of waste oil near open ground. One drum had oil overflowing to the ground. Photos were taken of waste oils and stained ground, as well as drums, woods, metals, tires, and household junk being buried east of the company in a wetland area. The CT DEP - Solid Waste Unit and the Wetland Commission were notified. Current status is undefined. This property presently utilizes water from a private well.

Property 8a

Bedard Tool Company - No Data. This property presently utilizes water from a private well.

Property 8b

There is confusion as to the history of this property. Although a sign on the building identifies this property as Bill and Sam's Restaurant/Snack bar, other information shows that Bill and Sam's Restaurant is located up the street. This property is a roadside luncheonette which services local business employees on a seasonal basis. In 1982, extremely high levels of benzene, dichloroethylene, methyl ethyl ketone, tetrachloroethylene, and trichloroethylene were detected in tap water at "Bill and Sam's". In 1984, high levels of tetrachloroethylene and trichloroethylene were still detectable. A new well was drilled in 1986 to supply the restaurant with cleaner water. Bill and Sam's, previously located at 713 Wolcott Road, is now located at 720 Wolcott Road. It is not known what, if any, sampling was conducted at the property identified on this site.This property presently utilizes water from a private well.

Property 9

Mailly Manufacturing Company, a small manufacturing facility, has been producing screw machine products since 1945. A 1980 inspection by CT DEP identified wastes generated as solvents and waste oil (with scrap metals). "Speedi-Dri" used to clean up oil was routinely deposited in a pile outside the building. Approximately 4-5 years worth of contaminated material was leaching into soil. An EPA Preliminary Assessment conducted in 1984 identified historical dumping of carbon tetrachloride from 1945 to approximately 1970. Proper disposal of waste material has since been implemented. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 10

R.J. Dollinger Electric - No Data. This property presently utilizes water from a private well.

Property 11

Barrett Tool Company - No Data. This property presently utilizes water from a private well.

Property 12

Property 12 is a private residence on Wakelee Road. As seen in Appendix A, this residence is down gradient from, properties 2, 3, 4, 6, and 7. Groundwater samples obtained from this property in 1985 did not detect levels of volatile organic compounds, although areas surrounding this property have been shown to be contaminated. This property utilizes water from a private well.

Property 13

The Talk of the Town Restaurant is located directly east of properties 2, 3, 4, 6 and 7 and within the site identified as "Nutmeg Valley." Groundwater samples obtained in 1985 did not detect levels of volatile organic compounds. This property utilizes water from a private well.

Property 14

This property is a private residence located on Wolcott Road (Rt 69). This property utilizes water from a private well.

Property 15

Discount Storage - No Data

Property 16

This property is a private residence located on Wolcott Road. This property utilizes water from a private well.

Property 17

This property is a private residence located on Wolcott Road. This property utilizes water from a private well.

Property 18

Getty Gas Station - No Data. This property presently utilizes water from a private well.

Property 19

Property 19 is a residence which sits in the center of "Nutmeg Valley." Groundwater sampling of this property in 1981 and 1985 documented levels of trichloroethylene contamination at 15 and 6.5 ppb, respectively. In 1985, these levels were considered below action levels. No additional action was taken. This property utilizes water from a private well.

Property 20

Property 20 is a residence which sits in the center of "Nutmeg Valley." Groundwater sampling of this property in 1985 documented levels of trichloroethylene contamination at 7.8 ppb. In 1985, this level was considered below action levels. No additional action was taken. This property utilizes water from a private well.

Property 21

Property 21 is mixed; residential and office space. Groundwater sampling in 1985 did not identify detectable amounts of volatile organic compounds. This property utilizes water from a private well.

Property 22

The National Die Company, Inc., a small manufacturing facility, has been producing drawn metal shells, carbide tools and dies since 1945. Wastes generated during the processes of machining, degreasing and washing include oils, trichloroethylene and kerosene. Although a 1980 Inspection Report conducted by CT DEP did not identify evidence of on-site disposal of waste materials, oils and solvents were historically discharged to the ground for a period of 15 years or more. Although this property has been connected to a public water supply, water from the private well may still be used in processing.

Property 23

Waterbury Heat Treating, Inc., previously occupied this property, which is presently offered for rent. Waterbury Heat Treating, a small job shop, had been specializing in heat treating since 1958. A 1980 Inspection Report conducted by CT DEP identified wastes generated during processes as quenching oils and cyanide. Historical dumping of spent quenching oils and cyanide existed for approximately 20 years. Vegetation over these leach fields was observed as dead'. Removal of approximately 350 cubic yards of contaminated soil (1986-1987) minimized the degree of groundwater contamination from the contaminated soil area. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 24

A & E Auto Services is a small quantity waste generator identified by EPA Installation ID #CTD097216154. A & E Auto Services has secured this property with fencing. No other files have been found for A & E Auto Services. This company utilizes water from a private well.

Property 25

This property is a private residence located on Wolcott Road. This property utilizes water from a private well.

Property 26

This property is a private residence located on Wolcott Road. This property utilizes water from a private well.

Property 27

This property is a private residence located on Wolcott Road. This property utilizes water from a private well.

Property 28a

Perfection Screw - No Data. This property presently utilizes water from a private well.

Property 28b

Line Manufacturing, Inc., a small manufacturer, has been producing eyelets and drawn metal shells since 1956. An Inspection Report conducted in 1961 by CT DEP indicated that 197 gal/day of detergent, water and oil were routinely discharged into the ground via a dry well. This practice was discontinued in the mid 1970's. A 1966 report states that 166 gal/day of caustic and oil were routinely discharged into a nearby stream. A 1980 Inspection Report identified mineral spirits, waste oils, caustics, tumbling wastes, and oil coated scrap metal as wastes generated by these manufacturing processes. In 1986, under Technical Directive Document (TDD) FI 8506-15, the NUS Field Investigation Team was contracted to perform a Site Inspection. Trace amounts of trichloroethylene were detected in groundwater, surface water and sediment samples. It was concluded in this report that contaminants historically dumped on-site may have migrated off-site or migrated downward through the permeable overburden to the groundwater table. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 29

This property was previously occupied by Nonine. The building has since been abandoned. Groundwater samples collected in 1985 showed contamination by methylene chloride (2.5 ppb), carbon tetrachloride (1.8 ppb) and trichloroethylene (31.6 ppb). Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 30

K.I.P. Transformers, Inc., was inspected in 1980 by CT DEP. No evidence of waste materials was identified. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 31

P.A.R. Precision, Inc. - No Data. Although this property has been connected to a public water supply, water from the private well may still be used for processing.

Property 32

Joma, Inc., a small manufacturing facility, has been producing metal stamped parts since 1954. This company is a permitted hazardous waste generator (EPA ID CTD001166032) with one hazardous waste barrel storage area and one hazardous waste underground storage tank. Wastes generated are identified as 1,1,1-trichloroethane, deburring sludge, (alkaline, water and oil) and petroleum naphtha. Evidence of improper disposal practices have not been identified at this site. Although this property has been connected to a public water supply, water from the private well my still be used for processing.

Property 33a

Highland Manufacturing - No Data. This property is connected to a public water supply.

Property 33b

Wolcott Town Line Commons - This property contains an industrial condominium for small businesses. Though several businesses have been supplied with public water, this property still utilizes water from a private well.

Property 34

Mattatuck Scrap Metal - No Data. This property presently utilizes water from a private well.

Property 35

Auto Dynamics and Oil Plus presently occupy the site on property 35. Previous occupants included J.D. Lucas Metals, Structural Steel, Jovan Machine Company, and Dover Manufacturing Company. Information on these companies is limited. This property utilizes water from a private well.

Dover Manufacturing Company, a small manufacturing facility, had been producing screw machine products since 1959. Wastes generated were identified as cutting oils and mineral spirits. Historical data indicate waste oil was discharged to the back yard and accumulated in a swampy area near Mad River. Disposal of grinding wastes containing waste oil and metal chips have been buried in a pit on neighboring property.

Property 36

Fusion Engineering and Manufacturing exists on this property. Groundwater testing in 1985 did not produce evidence of ground water contamination. This property utilizes water from a private well.

Property 37

Quality Used Cars and Autobody exists on this property. Groundwater sampled in 1985 documented levels of benzene (1.1 ppb) ethylbenzene (1.1 ppb), toluene (1.3 ppb) and xylene (2.5) ppb contamination. Groundwater sampled in 1987 documented levels of benzene (13.6 ppb), and toluene (13.1 ppb) contamination. No additional information can be found. Although this property has been connected to a public water supply, water from a private well may still be used for processing.

Property 38

Chem-Clean Furniture Strippers and Truck World occupy this property. Groundwater sampled in 1984 documented levels of benzene (8.1 ppb), toluene (49.1 ppb), and xylene (34.8 ppb) contamination. Groundwater sampled in 1985 documented levels of benzene (1.9 ppb), ethylbenzene (5.6 ppb), toluene (3.8 ppb), and xylene (30 ppb) contamination. No additional information can be found. Although the property has been connected to a public water supply, water from the private well may still be used for processing.

Property 39

Brave Equipment Company Industrial Park houses the businesses of Maaco (previously Dream Auto Colors) and Brave Equipment Company. Also housed on this property was Braemer Machine. An anonymous complaint of oil and paint discharge in 1985 brought CT DEP investigators to inspect this property.

Brave Equipment Company, a commercial and industrial rigger facility, has been servicing and storing equipment since 1970. This property extends over approximately 25 acres. A 1986 Inspection Report conducted by CT DEP identified heavy oil staining on the south side of the building and near several dozen poorly maintained drums of unknown materials (some identified as waste motor oil). Soil samples taken from the stained areas documented levels of PCB (60 ppb) and xylene (100 ppb) contamination.

Dream Auto Colors, d.b.a. Maaco Auto and Paint, is an auto body repair and painting company established in 1978. A 1986 Inspection Report conducted by CT DEP identified wastes generated as paints, thinners, and solvents. Evidence of heavy paint spill to the ground, disposal of paints to the dumpster, and sump discharge of floor wastes to the west side of the building were recorded. As of May 22, 1989, compliance to orders HN-327 (issued to Dream Auto Colors on April 10, 1986), HM-329 (issued to Brave Equipment Company on May 9, 1986), and HM-330 and HM-331 (issued to property owners on May 8, 1989) are past due. A RCRA inspection in 1990 indicated sump discharge to the ground was still occurring. This property utilizes water from a private well.

Property 40

Romantic Manufacturing Company - No Data. This property presently utilizes water from a private well.

Property 41

Metalmold, Inc., a small manufacturing facility, has been producing drawn shells and metal stampings since 1959. A 1980 Inspection Report conducted by CT DEP identified waste generated as waste oil. No evidence of on-site dumping was observed. This property utilizes water from a private well.

Property 42

Companies located on this property include the Nutmeg Screw Machine Products Company and the Alpine Electric Company. Nutmeg Screw Machine Products Company, a small metal working and machine shop, has been producing screw machine products since 1951. A 1980 Inspection Report conducted by CT DEP identified waste materials as oil-coated floor sweepings and chlorinated solvents. Improper disposal of oils behind the building and historical disposal of chlorinated solvents to the ground were recorded. A Preliminary Assessment was conducted by EPA in 1980. In 1985, a Site Inspection was conducted by NUS Corporation for EPA under Technical Directive Document (TDD) F1-8503-2. Unidentified volatile organic contaminants were present in soil adjacent to the building. Metal contaminants (copper 1,000 ppm, lead 1,000 ppm, zinc 501-1,000 ppm) have been documented in soil samples. No volatile or PCB contaminants were detected on-site in surface water or sediments from Old Tannery Brook. It is unknown whether or not contaminants are migrating to the underlying aquifer.

Alpine Electronic Components, Inc., a small manufacturing facility, has been producing connectors and screw machine parts since 1955. A 1980 Preliminary Assessment conducted by the EPA identifies waste materials as waste oils, solvents, and acid. Disposal of these materials to the ground around the building was recorded.

Investigation of this property led to the listing of Nutmeg Valley Road as an NPL Superfund Site. This property utilizes water from a private well.

Property 43

Kings Autobody is a small waste generator identified at EPA by CTD981066936. An automotive service operation inspection was conducted in 1988 by the local Chesprocott Health District. An uncontained 275 gallon above ground tank holds waste oil for disposal. No signs of on-site dumping were recorded. This property utilizes water from a private well.

Property 44

Frenchie Construction - No Data. This property utilizes water from a private well.

Property 45

Delson Hinge Corp., a small and now inactive manufacturing facility, had been producing hinges and metal stampings since 1977. A 1980 Inspection Report described waste materials as used oils and solvents. Wastes were removed off site by a commercial hauler. The building is presently unoccupied.

Property 46

The Phaneuf Company is involved with the sales and service of bank and office systems. Limited information is available on this company. From 1980 to 1983, this site was occupied by Craftsman Litho. No information can be found on this company. This property presently utilizes water from a private well.

Property 47

This property had been identified as a house. Upon inspection, no house could be found. The area is a large dirt and gravel pit.

Property 48

This property is presently occupied by Industrial Mailing. No information could be found for this company. Other businesses included on this property were Specialty Coil and Simon and Gagnon Moving. This property utilizes water from a private well.

Specialty Coil Company produced electrical coils, transformers and other magnetic components. A 1987 Industrial User Survey (USI) stated no wet discharge was occurring. Specialty Coil is presently out of business. A small landscaping business run by the former owner's son is located in the rear of the building. No other information could be found.

Property 49

This property was the previous location of PAR Finishing. At present, the Businesses of Bob-Ken Automatic and Care Manufacturing are sharing the building. No information can be found on Bob-Ken Automatics. This property utilizes water from a private well.

Care Manufacturing Co., a small manufacturing facility, has been producing screw machine products since 1985. A 1987 Industrial Survey conducted by CT DEP identified waste materials as cutting oils and scrap metals. A 1989 Inspection Report conducted by CT DEP identified wastes as 1,1,1-trichloroethane, kerosene, waste oil and scrap metals. The rear of the building housed 20 empty drums. Oil staining of the ground was evident. At the front of the building were 17 open drums of scrap metal chips identified as belonging to a previous tenant.

The Par Finishing Company, formerly Wolcott Electroplating, was once located on this property. The facility consisted of two parcels of land east and west of Tosun Road. The east side contained office space, production wells and metal finishing facilities. Discharge from the retention basins were pumped to the west side parcel for disposal into three surface impoundments. These impoundments (40' x 50') were located 30 feet from Old Tannery Brook. Many complaints have been registered with state officials as to the improper disposal of waste materials into neighboring surface waters. Sludge samples taken from the surface impoundment (lagoons) documented extremely high levels of copper, iron, manganese, nickel, cyanide, oil and grease, toluene, xylenes, and tetrachloroethylene. A Hazardous Waste Closing Plan was submitted to CT DEP in 1984. The First Year Annual Report on Groundwater Monitoring was submitted to CT DEP in 1985. High levels of cyanide, iron, manganese, TOC's, and sulfate were documented. The Fourth Year Annual Report on Ground water monitoring was submitted to CT DEP in 1988. Parameters in excess of drinking water standards included: pH, iron, manganese, and sodium. TOC's at 35.5 have been recorded. Activities at this site are ongoing.

Properties 50a, 50b, 51a, 51b, 51c, 51d, 51e, 51f, 51g, 51h, 51i, 51j, 51k, 52a, 52b, 52c, 53a, 53b, 54a, 54b

These properties are all private residences located on Tosun Road. These properties, with the exception of property 50a, utilize private well water with no treatment. Property 50a has been supplied with a carbon filter. Levels of trichloroethylene have been documented at property 53a (1.3 ppb/1985) and 54a (1.1 ppb/1985). Levels of toluene (2 ppb/1986), ethylbenzene (2 ppb/1986), mixed xylenes (15 ppb/1986) and dichloroethane (1.4 ppb/1986) have been documented at property 52b. Methylene chloride (2 ppb/1987), chloroform (3 ppb/1987), 1,2-dichloro- ethane (2.0 ppb/1987), 1,1,1-trichloroethane (11 ppb/1987), carbon tetrachloride (3 ppb/1987), trichloroethylene (10 ppb/1987), tetrachloroethylene (3.0 ppb/1987) and 1,1-dichloro- ethane (2.1 ppb/1987 were documented at property 50a.


APPENDIX B: EPA CANCER CLASSIFICATION

Group A. Human Carcinogen

This group is used only when there is sufficient evidence from epidemiologic studies to support a causal association between exposure to the agents and cancer.

Group B. Probable Human Carcinogen

This group includes agents for which the weight of evidence of human carcinogenicity based on epidemiologic studies is "limited" and also includes agents for which the weight of evidence of carcinogenicity based on animal studies is "sufficient." The group is divided into two subgroups. Usually, Group B1 is reserved for agents for which there is limited evidence of carcinogenicity from epidemiologic studies. It is reasonable, for practical purposes, to regard an agent for which there is "sufficient" evidence of carcinogenicity in animals as if it presented a carcinogenic risk to humans. Therefore, agents for which there is "sufficient" evidence from animal studies and for which there is inadequate evidence or "inadequate evidence" or "no data" from epidemiologic studies would usually be categorized under Group B2.

Group C. Possible Human Carcinogen

This group is used for agents with limited evidence of carcinogenicity in animals in the absence of human data. It includes a wide variety of evidence, e.g., (a) a malignant tumor response in single well-conducted experiment that does not meet conditions for sufficient evidence, (b) tumor responses of marginal statistical significance in studies having inadequate design or reporting, (c) benign but not malignant tumors with an agent showing no response in a variety of short-term tests for mutagenicity, and (d) responses of marginal statistical significance in a tissue known to have a high or variable background rate.

Group D. Not Classifiable as to Human Carcinogenicity

This group is generally used for agents with inadequate human and animal evidence of carcinogenicity or for which no data are available.

Group E. Evidence of Non-Carcinogenicity for Humans

This group is used for agents that show no evidence for carcinogenicity in at least two adequate animal tests in different species or in both adequate epidemiologic and animal studies.

The designation of an agent being in Group E is based on the available evidence and should not be interpreted as a definitive conclusion that the agent will not be a carcinogen under any circumstances.



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