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PUBLIC HEALTH ASSESSMENT

SARNEY FARM
AMENIA, DUTCHESS COUNTY, NEW YORK

 

APPENDIX A

 


Figure 1. Sarney Property Site

 

APPENDIX B

 

TABLE 1

ON-SITE CONTAMINATION FROM THE 1990 REMEDIAL INVESTIGATION

SUBSURFACE
GROUNDWATER
SOIL
  SOIL SHALLOW BEDROCK VAPOR
COMPOUND NAME mg/kg mcg/L mcg/L ppb

Semi-Volatile Organics
*naphthalene 5-43 0-0.4 0.3-1.5  
2-methylnaphthalene 0.056-15  
4-nitrophenol 0-0.082  
*di-n-butylphthalate 0-4.3 71-120  
butylbenzylphthalate 0.079-6.2 4-9  
*bis(2-ethylhexyl) 0.480-4.6  
phthalate        
Volatile Organics  
*vinyl chloride   0-4 0-14  
carbon disulfide   0-0.4 0-2  
acetone 0-0.375      
*1,2-dichloroethane 0-0.006 0-380 16-131  
*2-butanone 0.017-14,000 0-85  
*trichloroethene 0.003-220 0.4-10.7 0.4-1.7 42-64,000
4-methyl-2-pentanone 0.014-6,600 0.5-4.3  
*toluene 0.002-3,300 0-130   400-355,000
1,1-dichloroethene 0-0.001 0-0.2  
1,2-dichloroethene 0-0.015 0-0.5 1.1-3.1  
(total)
1,1-dichloroethane   0-2 0.6-1  
1,1,1-trichloroethane   0.2-0.5 0-1.2  
styrene   0-0.1  
cis-1,2-dichloroethene
1,2,4-trimethylbenzene   0.1-0.9  
1,3-dichlorobenzene   0-1 0-1  
1,4-dichlorobenzene   0-1  
1,2,4-trichloro-benzene 0-0.047 0-0.2  
PCBs
*Aroclor 1254 0-0.51  
Metals
*lead <0.001-0.13 3.1-18 2.5-12.7  
cadmium 0.005-0.064  
arsenic 0.001-0.019 0-2 2.2-6.1  

Note: mg/kg = milligrams per kilogram
mcg/L = micrograms per liter
ppb = parts per billion
Only detected results are reported.
*Contaminant selected for further evaluation (see Tables 4, 5 and 6 for public health assessment comparison values).

 

TABLE 2
OFF-SITE CONTAMINATION

  BEDROCK GROUNDWATER* SURFACEWATER*** SEDIMENT***
COMPOUND NAME mcg/L mcg/L mg/kg

Semivolatile Organics
naphthalene
2-methylnaphthalene
4-nitrophenol
**di-n-butylphthalate 2-3   0.095-0.15
butylbenzylphthalate
 
Volatile Organics
**vinyl chloride   0-68
**carbon disulfide 0.1 0-1
acetone   1.3-19
**1,2-dichloroethane 0-3 0.2-5
2-butanone   0.3-1 0-0.022
**trichloroethene 0-2 0-3
4-methyl-2-pentanone
toluene   0-5
1,1-dichloroethene   0-5
1,2-dichloroethene (total)
**1,1-dichloroethane 2
1,1,1-trichloroethane
**styrene 0-9 0-0.4
**cis-1,2-dichloroethene 0-1.4
1,3-dichlorobenzene   0-0.1
1,4-dichlorobenzene   0-0.1
1,2,4-trichlorobenzene   0-0.3
 
PCBs
Aroclor 1254
 
Metals
**lead 0-5.4 4-6 0-0.02
cadmium   0-7 0-0.001
arsenic   0-52 0-0.003

Note: mcg/L = micrograms per liter
mg/kg = milligrams per kilogram
Only detected results are reported.
*Private residential wells, compilation of NYS DOH and US EPA data.
**Contaminant selected for further evaluation based on public health assessment comparison values for contaminants found in sources of drinking water (see Table 4) and/or community health concerns.
***Data from the 1990 remedial investigation.

 

TABLE 3

CONTAMINATED MEDIA POTENTIAL RECEPTORS PATHWAYS OF EXPOSURE

SITE SOILS On-site: residents and trespassers Direct contact with soils, ingestion, inhalation of particulates
  Off-site residents Inhalation of volatile organic vapors released from soils and suspended solids

SURFACE WATER AND SEDIMENTS Area residents Direct contact and ingestion during recreational use of pond and downstream drainages

SHALLOW GROUNDWATER Areas residents Direct contact and ingestion from recreational use of water bodies to which groundwater is discharging

BEDROCK GROUNDWATER Residents Ingestion, direct contact, and inhalation of volatiles

SOIL VAPOR Residents Inhalation

 

TABLE 4
Public Health Assessment Comparison Values for Contaminants Found in Sources of Drinking Water
[All values in micrograms per liter (mcg/L)]

 
Comparison Values
 
New York State
U.S. EPA        
Chemical Groundwater Surface Water Drinking Water Drinking Water Cancer Source*** Noncancer Source***

naphthalene 10g 10 50 -- -- -- 20 EPA LTHA
2-methylnaphthalene 50 50g 50 -- -- -- -- --
4-nitrophenol -- -- 50 -- -- -- 60 EPA LTHA
di-n-butylphthalate 50 50g 50 -- -- -- 700 EPA RfD
butylbenzylphthalate 50g 50g 50 100p -- -- 1,400 EPA RfD
bis(2-ethylhexyl)phthalate 50 4g 50 6 2.5 EPA CPF 140 EPA RfD
vinyl chloride 2 0.3g 2 2 0.02 EPA CPF 0.7 ATSDR EMEG
carbon disulfide -- -- 50 -- -- -- 700 EPA RfD
acetone 50 -- 50 -- -- -- 700 EPA RfD
1,2-dichloroethane 5 0.8 5 5 0.38 ATSDR CREG 52 EPA RfD
2-butanone (methylethyl ketone) 50 50g 50 -- -- -- 200 EPA LTHA
trichloroethene 5 3g 5 5 3 NYS CREG 52 EPA RfD
4-methyl-2-pentanone 50 50g 50 -- -- -- -- --
toluene 5 5g 5 1000;40ps -- -- 1,000 EPA LTHA
1,1-dichloroethene 5 0.07g 5 7 0.058 ATSDR CREG 7 EPA LTHA
trans-1,2-dichloroethene (trans)isomer 5 5g 5 100 -- -- 100 EPA LTHA
1,1-dichloroethane 5 5g 5 -- -- -- 700 EPA RfD
1,1,1-trichloroethane 5 5g 5 200 -- -- 200 EPA LTHA
styrene 5 50 5 100;10ps 1.2 EPA CPF 100 EPA LTHA
cis-1,2-dichloroethene 5 -- 5 70 -- -- 70 EPA LTHA
1,2,4-trimethylbenzene 5 5g 5 -- -- -- -- --
1,3-dichlorobenzene -- 20 5 600 -- -- 600 EPA LTHA
1,4-dichlorobenzene 4.7* 30 5 75;5ps 1.5 EPA CPF 75 EPA LTHA
1,2,4-trichlorobenzene -- 10 5 70 -- -- 9 EPA LTHA
Aroclor 1254 0.1c 0.01c 0.5c 0.5 0.0045 ATSDR CREG 0.18 ATSDR EMEG
lead 25 50 50 50;15** -- -- -- --
cadmium 10 10 5 5 -- -- 5 EPA LTHA
arsenic 25 50 50 50 -- -- 11 EPA RfD

c = total PCBs
g = guidance value
p = proposed MCL (maximum contaminant level)
ps = proposed secondary MCL
*Applies to total of 1,2- and 1,4-isomers.
**The current MCL for lead is 50 mcg/L; after December 7, 1992 there will not be a MCL for lead. Effective after that date, there will be a maximum contaminant level goal (MCLG) of zero for lead and an action level of 15 mcg/L at the tap.
***ATSDR CREG = ATSDR Cancer Risk Evaluation Guide
ATSDR EMEG = ATSDR Environmental Media Evaluation Guide
EPA LTHA = EPA Drinking Water Lifetime Advisory
EPA CPF = EPA Cancer Potency Factor
EPA RfD = EPA Reference Dose

 

Table 5
Public Health Assessment Comparison Values for Soil Contaminants at or Near the Sarney Property Site
[All values in milligrams per kilogram (mg/kg)]

 
Comparison Values
Chemical Typical Background* Cancer Source** Noncancer Source**

naphthalene ND -- -- 1.4 NYS RfG
2-methylnaphthalene ND -- -- -- --
4-nitrophenol ND -- -- -- --
di-n-butylphthalate ND -- -- 4,100 NYS RfG
butylbenzylphthalate ND -- -- 3,200 NYS RfG
bis(2-ethylhexyl)phthalate ND 2.3 NYS CREG 17.6 NYS RfG
acetone ND -- -- 2 NYS RfG
1,2-dichloroethane ND 0.02 NYS CREG 1.6 NYS RfG
2-butanone ND -- -- 2.2 NYS RfG
trichloroethene ND 0.2 NYS CREG 5.3 NYS RfG
4-methyl-2-pentanone ND -- -- -- --
toluene ND -- -- 230 NYS RfG
1,1-dichloroethene ND 0.002 NYS CREG 3.2 NYS RfG
cis-1,2-dichloroethene ND -- -- 2 NYS RfG
trans-1,2-dichloroethene ND -- -- 1 NYS RfG
1,2,4-trichlorobenzene ND -- -- 152 NYS RfG
Aroclor 1254 <0.01-0.04a 0.03a NYS CREG 5 NYS RfG
lead 10-300 -- -- -- --
cadmium <0.5-1 -- -- 10 ATSDR EMEG
arsenic 10-20 -- -- 15 EPA RfD

ND = not determined
aTotal PCBs
*References: Clarke et al. (1985); Frank et al. (1976); McGovern (1988); Shacklette and Boerngen (1984)
**NYS RfG = New York State Risk Reference Guideline (for residential exposure)
NYS CREG = New York State Cancer Risk Evaluation Guideline (for residential exposure)
ATSDR EMEG = ATSDR Environmental Media Evaluation Guide
EPA RfD = EPA Reference Dose

 

Table 6
Public Health Assessment Comparison Values for Ambient Air Contaminants at the Sarney Property Site
[All values in parts per billion (ppb)]

Comparison Values
Chemical Typical Background* Cancer Source** Noncancer Source**

toluene 0.78-37 -- -- 105 EPA RfC
trichloroethene 0.03-0.59 0.11 EPA CPF 4.8 EPA RfD

*References: Singh et al. (1981); Brodzinsky and Singh (1982)
**EPA CPF = EPA Cancer Potency Factor
EPA RfC = EPA Risk Reference Concentration
EPA RfD = EPA Reference Dose


APPENDIX C

SARNEY FARMS

RESPONSES TO PUBLIC COMMENTS

Comment #1

Many residents were concerned that the 3 off-site wells that showed contamination might be theirs. Have the owners of the 3 wells been notified?

Response #1

The owner of each of the three off-site wells were notified of the sampling results. As previously stated, none of these wells were found to be contaminated with organic chemicals in concentrations above the New York State drinking water standards for public water supplies. Additionally, only one of the wells has shown contamination in more than one sample. However, monitoring will continue to verify that the concentrations stay below standards.

Comment #2

Who is responsible if our water becomes contaminated?

Response #2

If your water becomes contaminated with chemicals from the site, the New York State Department of Health (NYS DOH) will request that the United States Environmental Protection Agency (US EPA) provide a treatment system to remove contaminants from your water or an alternative source of potable water at no cost to you. The Sarney Farm site is on the National Priorities List (NPL) of Hazardous Waste sites and, therefore, the US EPA is responsible for remediation of the site. The US EPA, under the legislation that created the NPL, also has the ability to recover costs of remediation from parties that disposed of the hazardous waste.

Comment #3

Our water has not been tested every 3 months as recommended.

Response #3

Not all homes previously tested are included in this recommendation. This recommendation is specific to those homes that have the highest potential for contamination. Sampling of other homes should be done, but at a lesser frequency. Regardless, even the homes thought to have the highest potential for contamination may not be tested every three months. If you have questions regarding the status of sampling and your well, you are encouraged to call the NYS DOH at 1-800-458-1158, extension 305.

Comment #4

Could you have polluted the water when digging wells down through the contaminated aquifer thus bringing contaminants into the lower aquifer and endangering residential wells?

Response #4

Although this is possible, it is not likely. During installation of groundwater monitoring wells, measures are taken to reduce the potential for cross contamination of aquifers.

Comment #5

Why has it taken so long to clean this site up?

Response #5

The US EPA is the agency responsible for remediating the site and can provide a specific answer to this question. Mr. Kevin Willis is the project manager for the US EPA and he can be reached at (212) 264-8777. Also, Mr. Mike Mason of the New York State Department of Environmental Conservation (NYS DEC) is involved in the construction activities on-site and can be reached at 518/457-9280. However, in general, the work required to remediate a site such as Sarney Farm can be categorized into five tasks. The first task is to identify the presence of hazardous waste which is typically done by reviewing disposal records or sampling results. The second task is to define the extent and types of contaminants on-site and off-site. The third task is to determine if the contamination is a potential health or environmental threat and the need for remediation. The fourth task is to evaluate the technical and fiscal feasibility of remediation. The final step is to implement the remedial program. Each one of the steps is time consuming and involves specific tasks such as developing workplans, sampling, bidding and awarding of contracts, and actual construction of the remedial program.

Comment #6

Have all buried drums been removed from the site?

Response #6

All buried drums have been removed from Area 4; however, a total of 300 drums are estimated to remain on-site in Areas 1 and 2. By January 1994 the US EPA hopes to have a contractor on-site, removing the drums from Areas 1 and 2.

Comment #7

Why are you stopping work now, only to come back in a few months or years at more expense and begin again?

Response #7

See the response to Question 5.

Comment #8

Please further explain chronic exposure (Public Health Implications section).

Response #8

Exposure may be either acute (short-term) or chronic (long-term). Acute exposure is generally any length of time less than a few weeks but may be as short as a few seconds. Chronic exposure refers to an extended period of time typically ranging from several months to a lifetime. During a period of chronic exposure, contact may be continuous or may occur repeatedly by any of the following routes: ingestion (eating or drinking), inhalation (breathing) or from dermal (skin) contact. The maximum period of chronic exposure to drinking water contaminated by organic chemicals migrating from the Sarney site would be 25 years (from 1968 when waste was first discarded to the present).

Comment #9

I agree with Response #1 and I would like to have a contact person assigned to go over results with.

Response #9

The contact person from the NYS DOH is Mr. Lloyd Wilson. Any results transmitted from the NYS DOH include the name and telephone number of a contact person. Mr. Wilson can be reached at 1-800-458-1158, extension 305. If Mr. Wilson is unavailable, please ask for Ms. Nina Knapp at extension 405.

Comment #10

Recommendation #3 (access restriction) needs further explanation. Do you mean the whole Sarney Property?

Response #10

Recommendation #3 is intended to address only the areas of contaminated soils and includes a "buffer" zone. At this time the exact boundaries have not been defined.


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