PUBLIC HEALTH ASSESSMENT

WEST KINGSTON TOWN DUMP
AND
UNIVERSITY OF RHODE ISLAND (PLAINS RD) DISPOSAL AREA (URI)
SOUTH KINGSTON, WASHINGTON COUNTY, RHODE ISLAND


APPENDIX A: SITE AREA MAP


Figure 1. Site Area


APPENDIX B: CONTAMINANT DATA TABLES

The data tables include several abbreviations for clarifying information:

Comparison Values (CV) Abbreviations
      * EMEG Environmental Media Evaluation Guide
      * CREG Cancer Risk Evaluation Guide
      * RfDG Reference Dose-based Guide
      * LTHA Lifetime Health Advisory
      * MCL Maximum Contaminant Level
      * ALG Action Level Guide
      * OSV Other Selection Value

Data Clarifier Abbreviations
      * ppb parts per billion
      * ND not detected
      * NI no information
      * NA no analyses
      * J estimated value

Table 2 Contaminant Concentrations in On-site Wastes Taken From One Drum

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(2)		 1991

TCE ND
(2)		 1991

PCE ND
(2)		 1991

BAP ND
(2)		 1991

BEHP ND
(2)		 1991

Gasoline NI


Aldicarb NI


Aluminum NI
(2)		 1991

Lead ND
(2)		 1991

Manganese NI
(2)		 1991

Thallium NI
(2)		 1991



Table 3 Contaminant Concentrations in On-site Groundwater Monitoring Wells

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(3)		 1987
1989

TCE ND
(3)		 1987
1989

PCE ND - 10J
(3)		 1987
1989		 5 MCL
BAP ND
(3)		 1989

BEHP 6J - 76 15*
(3)		 1989 4 MCL
Gasoline NI


Aldicarb NI


Aluminum 145* - 11,600
(3)		 1989 1,400 OSV
Lead ND* - 22
(3)		 1987 15 ALG
Manganese 242* - 73,000
(3)(4)		 1973
1974
1989		 1,000 RFDG
Thallium ND* - 3.6
(3)		 1989 0.4 LTHA
* Values for on-site upgradient well


Table 4 Contaminant Concentrations in On-Site Pond Water

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(2)(3)		 1987
1991

TCE 10 - 72
(2)(3)		 1987
1991		 none
PCE 9 - 41
(2)(3)		 1987
1991		 none
Benzo(a)pyrene NI
(2)(3)		 1987
1991

BEHP ND
(3)		 1987

Gasoline NI


Aldicarb NI


Aluminum NI
(2)(3)		 1987
1991

Lead 1* - 12*
(2)(3)		 1987
1991		 none
Manganese NI
(2)(3)		 1987
1991

Thallium NI
(2)(3)		 1987
1991

* Contaminant detected only in water sample taken from pond on URI portion of site.


Table 5 Contaminant Concentrations in On-Site Pond Sediment

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(2)		 1991

TCE ND
(2)		 1991

PCE ND
(2)		 1991

BAP ND - 35J
(2)		 1991 none
BEHP 21* - 252**
(2)(3)		 1987
1991		 none
Gasoline NI


Aldicarb NI


Aluminum NI
(2)(3)		 1987
1991

Lead 2,900 - 8,000
(2)		 1991 none
Manganese NI
(2)(3)		 1987
1991

Thallium NI
(2)(3)		 1987
1991

* Sample from pond on West Kingston Dump property
** Sample from pond on URI property


Table 6 Contaminant Concentrations in On-Site Surface Soils

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(2)		 1991

TCE ND
(2)		 1991

PCE ND
(2)		 1991

BAP 42J - 240J
(2)		 1991 none
BEHP ND - 1,400
(2)		 1991 none
Gasoline NI


Aldicarb NI


Aluminum NI
(2)		 1991

Lead 42,000
(2)		 1991 none none
Manganese NI
(2)		 1991

Thallium NI
(2)		 1991



Table 7 Contaminant Concentrations in On-Site Subsurface Soils

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform NA
(3)		 1987

TCE Tentatively identified, not quantified
(3)		 1987

PCE Tentatively identified, not quantified
(3)		 1987

BAP NA
(3)		 1987

BEHP NA
(3)		 1987

Gasoline NI


Aldicarb NI


Aluminum NA
(3)		 1987

Lead NA
(3)		 1987

Manganese NA
(3)		 1987

Thallium NA
(3)		 1987



Table 8 Contaminant Concentrations in Off-Site Ground-water Monitoring Wells

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(3)		 1987
1989

TCE ND
(3)		 1987
1989

PCE ND
(3)		 1987
1989

BAP ND
(3)		 1987

BEHP ND - 544
(3)		 1987 4 MCL
Gasoline NI


Aldicarb NI


Aluminum ND
(3)		 1989

Lead ND
(3)		 1987

Manganese 20 - 69
(4)		 1973 1,000 RfDG
Thallium ND
(3)		 1989

Table 9 Contaminant Concentrations in Private Drinking
Water Wells at Three Nearby Residences That
are Now Connected to Public Water

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(3)		 1987

TCE ND - 90
(3)		 1987 5 MCL
PCE ND - 52
(3)		 1987 5 MCL
BAP NA
(3)		 1987

BEHP NA
(3)		 1987

Gasoline ND - 11
(3)		 1987 none
Aldicarb NI


Aluminum NA
(3)		 1987

Lead NA
(3)		 1987

Manganese NA
(3)		 1987

Thallium NA
(3)		 1987



Table 10 Contaminant Concentrations in Off-Site Private Drinking Water Wells Other Than the Three Nearby Residences that are now Connected to Public Water

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND - 9 *
(3)(5)		 1987
thru
1991		 5.7 CREG
TCE ND - 1 **
(3)(5)		 1987
thru
1991		 5 MCL
PCE ND - 2 **
(3)(5)		 1987
thru
1991		 5 MCL
BAP NA
(3)(5)		 1987
thru
1991

BEHP NA
(3)(5)		 1987
thru
1991

Gasoline NI


Aldicarb ND - 12**
(5)		 1990
1991		 2 RfDG
Aluminum NA
(3)(5)		 1987
thru
1991

Lead NA
(3)(5)		 1987
thru
1991

Manganese ND - 0.09 **
(3)(5)		 1987
thru
1991		 1,000 RfDG
Thallium NA
(3)(5)		 1987

* East of Chipuxet River
** West of Chipuxet River

Table 11 Contaminant Concentrations in Public Wells and Water Systems (Kingston Water District and University of Rhode Island Water Systems)

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND (6) 1984
1988
thru
1991

TCE ND (6) 1979
1984
1988
thru
1991

PCE ND (6) 1979
1984
1988
thru1991

BAP NI


BEHP NI


Gasoline (and "hydrocarbons") ND (6) 1990
1991		 none
Aldicarb ND - 2*
(6)		 1984 2 RfDG
Aluminum NI


Lead ND - 0.007
(6)		 1979
1984
1988
thru
1991		 15 ALG
Manganese ND - 0.23
(6)		 1979
1984
1988
thru
1991		 1,000 RfDG
Thallium NI


* Data for Kingston Water District only

Table 12 Contaminant Concentrations in Surface Water at Hundred Acre Pond

Contaminant Concentration
ppb
(Reference)		 Year Comparison Value
ppb Source
Chloroform ND
(3)		 1987

TCE ND
(3)		 1987

PCE ND
(3)		 1987

BAP NI
(3)		 1987

BEHP ND
(3)		 1987

Gasoline NI


Aldicarb NI


Aluminum NI
(3)		 1987

Lead ND
(3)		 1987

Manganese NI
(3)		 1987

Thallium NI
(3)		 1987


APPENDIX C: PUBLIC COMMENTS

The West Kingston Town Dump and University of Rhode Island Disposal Area public health assessment was available for public review and comment in local libraries for a 30-day period ending November 12, 1992. The public comment period was announced in local newspapers. In addition, the public health assessment was sent to several individuals or organizations. One set of commments was received. Specific comments and responses are summarized below.

Comment 1:

EPA reported the site was finalized on their National Priorities List (Final Rule) in October 1992.

    Response:

The public health assessment has been revised.

Comment 2:

USEPA reported that Figure 1 does not seem to accurately depict the relative areal extent of the two disposal areas; the comment was later rescinded.

    Response:

No revision required.

Comment 3:

USEPA reported they plan to gather data to characterize contamination at the site and contiguous areas.

    Response:

The public health actions section of the public health assessment has been augmented to reflect the proposed data gathering.

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