PUBLIC HEALTH ASSESSMENT
NORTHWEST PIPE AND CASING COMPANY
CLACKAMAS, CLACKAMAS COUNTY, OREGON

FIGURES

Figure 1. General Location Map

Figure 2. Location Map

Figure 3. On-Site Sample Location Map (December 1989)

Figure 4. SSI On-Site Sample Location Map (July 1988)

Figure 5. Monitoring Well Location Map (February 1990)

Figure 6. Surface Water/Sediment Sample Locations (December 1989)

Figure 7. Off-Site Residential/Background Soil Sample Location Map (December 1989)

Figure 8. Off-Site Groundwater Sample Location Map (Feb 1990)

APPENDICES

APPENDIX A - ENVIRONMENTAL DATA

Explanation of Tables

In the data tables that follow, the listed contaminant does not mean that it will cause adverse health effects from exposures. Instead, the list indicates which contaminants will be evaluated further in the Health Assessment. When selected as a contaminant of concern in one medium, that contaminant will be reported in all media.

The data tables include the following acronyms:

CREG	= Cancer Risk Evaluation Guide
EMEG	= Environmental Media Evaluation Guide
LTHA	= Lifetime Health Advisory
PMCLG	= Proposed Maximum Contaminant Level Goal
ppb	= parts per billion
ppm	= parts per million
RMEG	= Reference Dose Media Evaluation Guide

Surface soil samples were included in the tables as follows: split samples were counted as separate samples but replicate samples were not. The data come from the 1988 Site Inspection Report and the 1990 Listing Site Inspection Report (2,4).

ATSDR selects and discusses these contaminants based upon the following factors:

1. Concentrations of contaminants on and off the site.



2. Field data quality, laboratory data quality, and sample design.



3. Comparison of on-site and off-site concentrations with health assessment comparison values for (1) noncarcinogenic endpoints and (2) carcinogenic endpoints.



4. Community health concerns.

Health assessment comparison values are contaminant concentrations in specific media that are used to select contaminants for further evaluation. These values include Environmental Media Evaluation Guides (EMEGs), Cancer Risk Evaluation Guides (CREGs), and other relevant guidelines. EMEGs are derived from the Minimal Risk Levels (MRLs), ATSDR-derived estimates of daily human exposure to a chemical that are likely to be without an appreciable risk of deleterious effects (non-carcinogenic) over a specified duration of exposure. MRLs provide a measure of the toxicity of a chemical. CREGs are estimated contaminant concentrations based on a one excess cancer in a million persons exposed over a lifetime. CREGs are calculated from EPA's cancer slope factors. EPA's Maximum Contaminant Level Goal (MCLG) is a drinking water health goal. EPA believes that the MCLG represents a level at which no known or anticipated adverse health effect should occur and allows an adequate margin of safety. Proposed Maximum Contaminant Level Goals (PMCLGs) are MCLGs that are being proposed. Maximum Contaminant Levels (MCLs) represent contaminant concentrations that EPA deems protective of public health (considering the availability and economics of water treatment technology) over a lifetime (70 years) at an exposure rate of 2 liters water per day. While MCLs are regulatory concentrations, PMCLGs and MCLGs are not. EPA's Reference Dose (RfD) is an estimate of the daily exposure to a contaminant that is unlikely to cause adverse health effects. The Reference Dose Media Evaluation Guide (RMEG) is calculated from EPA's Reference Dose. EPA also has a drinking water lifetime health advisory (LTHA) which provides the level of a contaminant at which adverse noncarcinogenic health effects would not be anticipated.

Table 1

ON-SITE SOILS (2,4) ORGANICS:PAHs
July 1988, December 1989 Parcel A and B soils & Background soils Soils 0-6"
CONTAMINANT	MAXIMUM CONCEN- TRATION	YEAR REPORTED	COMPARISON VALUE (C.V.) FOR INGESTION -CHILD		FREQ>C.V. (>ND)
PAHs	ppm		ppm	Source
noncarcinogenic:
Acenaphthene	1300	1988	3000	RMEG	5/52
Acenaphthylene	ND		None		(Unknown)
Anthracene	27,000	1988	20,000	RMEG	1/42*
Benzo(g,h,i)perylene	390 J3	1989	None		(34/52)
Fluoranthene	21,000	1988	2000	RMEG	4/62
Fluorene	2600	1988	2000	RMEG	2/52
2-Methylnapthalene	ND		None		(Unknown)
Naphthalene	17 J	1989	None		(4/41)
Phenanthrene	16,000	1988	None		(18/46)
Pyrene	15,000	1988	2000	RMEG	5/62
carcinogenic:
Benzo(a)anthracene	950	1988	None		(6/6)*
Benzo(b)fluoranthene	800 J3	1989	None		(10/11)*
Benzo(k)fluoranthene	530 J3	1989	None		(10/11)*
Benzo(a)pyrene	410 J3	1989	0.096	CREG	42/62
Chrysene	2100	1988	None		(11/11)*
Dibenzo(a,h)anthracene	89 J3	1989	None		(8/11)*
Indeno(1,2,3-c,d)pyrene	250 J3	1989	None		(9/11)*
ND = Not Detected; J = estimated value, tentatively identified compound; J3 = estimated value, positively identified compound, low bias for the sample (actual concentration may be higher). * Some contaminants could not be separated analytically. Concentrations are reported only if the contaminant could be analyzed on a contaminant specific basis.

Table 2

ON-SITE SOIL (2,4) OTHER ORGANICS*
July 1988, December 1989 Soils 0-6"
CONTAMINANT	MAXIMUM CONCEN- TRATION	COMPARISON VALUE (C.V.) FOR INGESTION-CHILD		FREQ>C.V. (>ND)
	ppm	ppm	Source
Benzene	0.008	24	CREG	0/41
Bis(2-ethyl hexyl) phthalate	ND	None		(Unknown)
2-butanone	ND	None		(Unknown)
Carbon Tetrachloride	ND	40	RMEG	(Unknown)
Chloroform	ND	500	EMEG	(Unknown)
Dibenzofuran	830**	50	RMEG	4/11
Di-n-octyl phthalate	ND	None		(Unknown)
Total 1,2 DCE (dichloroethene)	ND	1000	RMEG	(Unknown)
Methoxychlor	ND	300	RMEG	(Unknown)
PCB:Aroclor 1254	1000 J	0.3	EMEG	39/56
PCE Tetrachloroethene	3.2	0.036	CREG	7/41
1,1,1 trichloroethane	0.0056	None		(1/41)
1,1,2 trichloroethane	ND	200	RMEG	(Unknown)
TCE (trichloroethene)	0.016	64	CREG	(3/41)
Vinyl Chloride	ND	1	EMEG	(Unknown)
ND= Not Detected J= estimated value, tentatively identified compound. *Most of these organic compounds were detected in soil of Parcel B, but not Parcel A. **1988 value

Table 3

ON-SITE SOIL (4) INORGANICS
December 1989 Grid Samples
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION -CHILD		FREQ >C.V. (>BKGR)
	ppm		ppm	Source
Aluminum	28,400	31,300	None		(0/5)
Antimony	25.6	14.7 J	20	RMEG	1/5
Arsenic	13.3 J4	2.5 J	0.4	CREG	5/5
Barium	1580	154	4000	RMEG	0/5
Beryllium	0.66	ND	0.16	CREG	1/5*
Cadmium	ND	ND	10	EMEG	0/5
Chromium (III)	124	29.2	50,000	RMEG	0/5
Cobalt	21.7	20.8	None		(1/5)
Copper	160	20.9	None		(5/5)
Iron	114,000 J4	38,500 J4	None		(2/5)
Lead	28.3 J4	20.4 J4	None		(1/5)
Manganese	950	801	300	RMEG	5/5
Mercury	ND	ND	None		(0/5)
Nickel	98.9	19.6	None		(4/5)
Selenium	Unusable	Unusable	100	EMEG
Vanadium	115	111	None		(1/5)
Zinc	807 J4	77.5 J4	None		(4/5)
ND = Not Detected J= estimated value, positively identified compound. J4=estimated value, QC outside control limits * The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown. The reported FREQ is the minimum.

Table 4 All maximum concentrations are from the July 1988 data.

ON-SITE SEDIMENT (4) ORGANICS:PAHs
July 1988, December 1989 Drainage Ditches, Sediment 0-6"
CONTAMINANT	MAXIMUM CONCENTRATION*	COMPARISON VALUE (C.V.) FOR INGESTION - CHILD		FREQ>C.V. (>ND)
PAHs	ppm	ppm	Source
noncarcinogenic:
Acenaphthene	0.4 J	3000	RMEG	0/7
Acenaphthylene	ND	None		(0/7)
Anthracene	20	20,000	RMEG	0/7
Benzo(g,h,i)perylene	3.9 J	None		(4/7)
Fluoranthene	2500*	2000	RMEG	1/7
Fluorene	2.2	2000	RMEG	0/7
2-Methylnapthalene	ND	None		0/7
Naphthalene	ND	None		0/7
Phenanthrene	13	None		(3/10)
Pyrene	2100*	2000	RMEG	1/10
carcinogenic:
Benzo(a)anthracene	230 J*	None		(4/8)**
Benzo(b)fluoranthene	10	None		(5/8)**
Benzo(k)fluoranthene	6.9	None		(3/8)**
Benzo(a)pyrene	56 J*	0.12	CREG	5/8
Chrysene	280 J*	None		(5/8)**
Dibenzo(a,h)anthracene	0.76 J	None		(2/3)
Indeno(1,2,3-c,d)pyrene	4.2	None		(3/8)**
ND= Not Detected; J= estimated value, positively identified compound; J3 = estimated value, positively identified compound, low bias for the sample (actual concentration may be higher). *SD1, a background sample, was considered on-site due to contaminants and locality. ** Some contaminants could not be separated analytically. Concentrations are reported only if the contaminant could be analyzed on a contaminant specific basis.

Table 5

ON-SITE SEDIMENT (4) OTHER ORGANICS*
July 1988, December 1989 Drainage Ditches, Sediment 0-6"
CONTAMINANT	MAXIMUMCONCEN- TRATION	YEAR REPORTED	COMPARISON VALUE (C.V.) FOR INGESTION- CHILD		FREQ>C.V. (>ND)
	ppm		ppm	Source
Benzene	ND	1989	24	CREG	0/6
Bis(2-ethyl hexyl) phthalate	200 J	1989	None		(3/6)
2-butanone	19	1989	None		(1/6)
Carbon Tetrachloride	ND	1989	40	RMEG	0/6
Chloroform	ND	1989	500	EMEG	0/6
Dibenzofuran	0.52 J	1988	50	RMEG	0/6
Di-n-octyl phthalate	ND	1989	None		(0/6)
Total 1,2 DCE (dichloroethene)	43	1989	1000	RMEG	0/6
Methoxychlor	ND	1989	300	RMEG	0/6
PCB:Aroclor 1254	11	1988	0.3	EMEG	5/6
PCE Tetrachloroethene	0.23	1989	0.036	CREG	1/6
1,1,1 trichloroethane	ND	1989	None		0/6
1,1,2 trichloroethane	ND	1989	200	RMEG	0/6
TCE (trichloroethene)	0.036	1989	64	CREG	(2/6)
Vinyl Chloride	ND	1989	1	EMEG	0/6
*These organic compounds were analyzed in soil of Parcel B. J= estimated value, positively identified compound.

Table 6

ON-SITE SEDIMENT (4) INORGANICS
December 1989 Drainage Ditches, Sediment 0-6"
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION- CHILD		FREQ >C.V. (>BKGR)
	ppm		ppm	Source
Aluminum	25,700	15,700	None		(3/4)
Antimony	ND or Unusable	Unusable	20	RMEG	0/1*
Arsenic	11.8	4.9	0.4	CREG	4/4
Barium	191	138	4000	RMEG	0/4
Beryllium	ND	ND	0.16	CREG	0/4**
Cadmium	ND	ND	10	EMEG	0/4**
Chromium (III)	42	27.2	50,000	RMEG	0/4
Cobalt	31.3	18.3	None		2/4
Copper	77.0	26.6	None		(3/4)
Iron	43,200	26,500	None		(2/4)
Lead	175 J4	29.1	None		(2/4)
Manganese	1820	639	300	RMEG	4/4
Mercury	0.28 J4	ND	None		(1/4)
Nickel	23.6	22.4	None		(1/4)
Selenium	ND	ND	100	EMEG	0/4
Vanadium	122	68.9	None		(2/4)
Zinc	1190	153	None		(3/4)
ND = Not Detected; J= estimated value, positively identified compound; J4=estimated value; QC outside control limits * 3/4 samples were unusable. ** The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown. The reported FREQ is the minimum.

Table 7 No PAHs were detected in surface water. Background surface water samples could not collected because the drainage ditches were dry.

ON-SITE SURFACE WATER (4) OTHER ORGANICS
December 1989 Drainage Ditches
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ>C.V. (>ND)
	ppb	ppb	Source
Benzene	1 J	1.2	CREG	0/4
Carbon Tetrachloride	ND	0.27	CREG	0/4
Chloroform	ND	5.7	CREG	0/4
Dibenzofuran	ND	10	RMEG	0/4
Total 1,2 DCE (dichloroethene)	37	70	LTHA	0/4
PCB:Aroclor 1254	ND	0.0045	CREG
PCE Tetrachloroethene	53	0.67	CREG	2/4
1,1,1 trichloroethane	ND	None		0/4
1,1,2 trichloroethane	ND	0.61	CREG	0/4
TCE (trichloroethene)	13	3.2	CREG	2/4
Vinyl Chloride	2.0 J	0.2	EMEG	1/4
ND= Not Detected J= estimated value, positively identified compound.

Table 8

ON-SITE SURFACEWATER (4) INORGANICS
December 1989 Drainage Ditches
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ >C.V. (>BKGR)
	ppb		ppb	Source
Aluminum	1830	296 UJ1	None		(1/4)
Antimony	ND	ND	0.004	RMEG	(0/4)*
Arsenic	ND	ND	0.003	RMEG	(0/4)*
Barium	48.9 J	25.1 J	0.7	RMEG	4/4
Beryllium	3.5 UJ1	ND	8.1	CREG	0/4
Cadmium	3.2 UJ1	ND	0.002	EMEG	(0/4)*
Chromium	7.6 UJ1	6 J	0.05	RMEG	(0/4)*
Cobalt	ND	ND	None		(0/4)
Copper	31.7	ND	1300	PMCL	0/4
Iron	4240	585	None		(1/4)
Lead	64.8 J4	1.3 UJ1, J4	0.005	PMCL	(2/4)*
Manganese	463	86.3	1.0	RMEG	4/4
Mercury	0.2	ND	None		(1/4)
Nickel	ND	ND	0.2	EMEG	(0/4)*
Selenium	2.8 J	ND	20	iEMEG	0/4
Vanadium	9.8 J	3.3 J	20	LTHA	0/4
Zinc	215	38.5	2100	LTHA	0/4
ND = Not Detected; J= estimated value, positively identified compound; J4=estimated value; QC outside control limits; UJ1=Not detected, the concentration is an estimated/adjusted quantitation limit, blank contamination. * The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown. Therefore, the reported FREQ refers to background.

Table 9

ON-SITE GROUNDWATER (2,4) ORGANICS:PAHs SHALLOW AQUIFER
July 1988, February 1990
CONTAMINANT	MAXIMUM CONCEN- TRATION	YEAR REPORTED	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ>C.V. (>ND)
PAHs	ppb		ppb	Source
noncarcinogenic:
Acenaphthene	3400	1990	600	RMEG	2/12
Acenaphthylene	8 J	1990	None		(3/12)
Anthracene	260	1990	3000	RMEG	0/12
Benzo(g,h,i)perylene	20	1990	None		(1/8)
Fluoranthene	2500	1990	400	RMEG	1/12
Fluorene	1400	1990	400	RMEG	1/8
2-Methylnapthalene	110	1988	None		(5/12)
Naphthalene	680	1988	20	LTHA	1/12
Phenanthrene	5000	1990	None		(9/12)
Pyrene	2300	1990	300	RMEG	1/12
carcinogenic:
Benzo(a)anthracene	260	1990	0.0081	CREG	4/12
Benzo(b)fluoranthene	78	1990	None		(2/8)
Benzo(k)fluoranthene	38	1990	None		(1/8)
Benzo(a)pyrene	41	1990	0.0048	CREG	2/8
Chrysene	210	1990	None		(5/12)
Dibenzo(a,h)anthracene	10 J	1990	None		(1/8)
Indeno(1,2,3-c,d)pyrene	22	1990	None		(1/8)
J = estimated value, positively identified compound. The PAH's analyzed as above were all non-detectable in the background well.

Table 10

ON-SITE GROUNDWATER (4) OTHER ORGANICS SHALLOW AQUIFER
December 1989 MW 1-7, ODOT floor drain
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ>C.V. (>ND)
	ppb	ppb	Source
Benzene	2 J	1.2	CREG	2/8
Carbon Tetrachloride	41	0.27	CREG	1/8
Chloroform	32	5.7	CREG	1/8
Dibenzofuran	1200	10	RMEG	3/8
Total 1,2 DCE (dichloroethene)	4200	70	LTHA	4/8
PCB:Aroclor 1254	15	0.0045	CREG	1/8
PCE Tetrachloroethene	4200	0.67	CREG	7/8
1,1,1 trichloroethane	ND	200	LTHA	0/8
1,1,2 trichloroethane	5 J	0.61	CREG	1/8
TCE (trichloroethene)	1100	3.2	CREG	5/8
Vinyl Chloride	91	0.2	EMEG	5/8
ND= Not Detected J= estimated value, positively identified compound. ODOT = Oregon Department of Transportation MW = Monitoring Well

Table 11

ON-SITE GROUNDWATER (4) INORGANICS SHALLOW AQUIFER
February 1990 MW 1-7, ODOT Floor drain
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ >C.V. (>BKGR)
	ppb		ppb	Source
Aluminum	193,000	ND	None		(8/8)
Antimony	54.4 J4	20 UJ4	0.004	RMEG	2/8*
Arsenic	31.1 J4	1.0 UJ4	0.003	RMEG	4/8*
Barium	1680	21.4 UJ1	0.7	RMEG	8/8
Beryllium	10.2	ND	8.1	CREG	1/8
Cadmium	ND	ND	0.002	EMEG	0/8
Chromium	293	ND	0.05	RMEG	6/8*
Cobalt	138	ND	None		(6/8)
Copper	334	ND	1300	PMCL	0/8
Iron	275,000	1040	None		(8/8)
Lead	491 J4	ND	0.005	PMCL	8/8
Manganese	5930	7.6 J	1.0	RMEG	8/8
Mercury	ND	ND	None		(0/8)
Nickel	155	ND	0.2	EMEG	5/8*
Selenium	Unusable
Vanadium	888	ND	20	LTHA	6/8
Zinc	4800	263	2100	LTHA	1/8
ND= Not Detected J= estimated value, positively identified compound. J4=estimated value, QC outside control limits UJ1=Not detected, the concentration is an estimated/adjusted quantitation limit, blank contamination. UJ4= Not detected, the concentration is an estimated/adjusted quantitation limit, QC outside control limits. ODOT = Oregon Department of Transportation * The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown.

Table 12The frequency column was eliminated because of the minimal number of wells or well involved.

ON- AND OFF-SITE GROUNDWATER (4) INORGANICS DEEP AQUIFER
February 1990 City of Milwaukie wells and ODOT well
CONTAMINANT	MAXIMUM CONC.		BACKGROUND CONC.	COMPARISON VALUE (C.V.) FOR INGESTION
	ppb		ppb	ppb	Source
	Milwaukie: off-site wells	ODOT: on-site well
Aluminum	ND	ND	ND	None
Antimony	ND	20 UJ4	ND	0.004	RMEG
Arsenic	ND	8.8 J4	1.0 UJ4	0.003	RMEG
Barium	7.6 UJ1	74.3 J	21.4 UJ1	0.7	RMEG
Beryllium	ND	ND	ND	8.1	CREG
Cadmium	ND	ND	ND	0.002	EMEG
Chromium	ND	ND	ND	0.05	RMEG
Cobalt	ND	ND	ND	None
Copper	ND	10.1 J	ND	1300	PMCL
Iron	83.4 UJ1	4010	1040	None
Lead	ND	2.4 J	ND or 1J	0.005	PMCL
Manganese	27.6	1850	7.6 J	1.0	RMEG
Mercury	ND	ND	ND	None
Nickel	ND	ND	ND	0.2	EMEG
Selenium	Unusable	Unusable
Vanadium	6.6J	ND	ND	20	LTHA
Zinc	2.4 UJ1	1180	263	2100	LTHA
ND= Not Detected J= estimated value, positively identified compound. J4=estimated value, QC outside control limits UJ1=Not detected, the concentration is an estimated/adjusted quantitation limit, blank contamination. UJ4= Not detected, the concentration is an estimated/adjusted quantitation limit, QC outside control limits. ODOT = Oregon Department of Transportation * The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown.

Table 13

OFF-SITE SOILS (4) ORGANICS:PAHs
December 1989 Residential and Background* Samples Soils 0-6"
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION -PICA CHILD		FREQ>C.V. (>ND)
PAHs	ppm	ppm	Source
noncarcinogenic:
Acenaphthene	ND	120	RMEG	0/2
Acenaphthylene	ND	None		(Unknown)
Anthracene	ND	600	RMEG	0/2
Benzo(g,h,i)perylene	0.23 J3	None		(1/5)
Fluoranthene	0.31 J3	80	RMEG	0/5
Fluorene	ND	80	RMEG	0/2
2-Methylnapthalene	ND	None		(Unknown)
Naphthalene	ND	None		(Unknown)
Phenanthrene	0.11 J3	None		(3/5)
Pyrene	0.32 J3	60	RMEG	0/5
carcinogenic:
Benzo(a)anthracene	0.21 J3	None		(2/5)
Benzo(b)fluoranthene	0.46 J3	None		(2/5)
Benzo(k)fluoranthene	0.32 J3	None		(1/5)
Benzo(a)pyrene	0.36 J3	0.096	CREG	3/5
Chrysene	0.35 J3	None		(3/5)
Dibenzo(a,h)anthracene	ND	None		(unknown)
Indeno(1,2,3-c,d)pyrene	0.15 J3	None		(1/5)
ND= Not Detected J = estimated value, positively identified compound. J3 = estimated value, positively identified compound, low bias for the sample (actual concentration may be higher). * A background sample contained benzo(b)fluoranthene at 0.15 J3 and benzo(a)pyrene at 0.093 J3.

Table 14

OFF-SITE SOIL (4) OTHER ORGANICS*
December 1989 Soils 0-6"
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION - PICA CHILD		FREQ>C.V. (>ND)
	ppm	ppm	Source
Benzene	ND	24	CREG	0/4
Bis(2-ethyl hexyl) phthalate	120 J	None		(1/4)
2-butanone	ND	None		(0/4)
Carbon Tetrachloride	ND	1.4	CREG	0/4
Chloroform	ND	20	EMEG	0/4
Dibenzofuran	ND	2	RMEG	0/4
Di-n-octyl phthalate	53 J3	None		(1/4)
Total 1,2 DCE (dichloroethene)	ND	40	RMEG	0/4
Methoxychlor	68 J3	10	RMEG	(1/4)
PCB:Aroclor 1254	ND	0.01	EMEG	0/4
PCE Tetrachloroethene	ND	0.036	CREG	0/4
1,1,1 trichloroethane	ND	None		(0/4)
1,1,2 trichloroethane	ND	8	RMEG	0/4
TCE (trichloroethene)	ND	64	CREG	0/4
Vinyl Chloride	ND	0.04	EMEG	0/4
ND= Not Detected J= estimated value, tentatively identified compound. J3 = estimated value, positively identified compound, low bias for the sample (actual concentration may be higher). Bis(2-ethylhexyl)phthalate and di-n-octyl phthalate were detected in the background sample.

Table 15

OFF-SITE SOIL (4) INORGANICS
December 1989 Residential Soil Samples- 0-6"
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ >C.V. (>BKGR)
	ppm		ppm	Source
Aluminum	33,200	31,300	None		(1/4)
Antimony	ND or unusable	14.7 J	0.8	RMEG	0/3*
Arsenic	4.8	2.5 J	0.4	CREG	4/4
Barium	299	154	140	RMEG	2/4
Beryllium	ND	ND	0.16	CREG	0/4**
Cadmium	ND	ND	0.4	EMEG	0/4**
Chromium (III)	39.7	29.2	2000	RMEG	0/4
Cobalt	22.5	20.8	None		(1/4)
Copper	34.7	20.9	None		(2/4)
Iron	40,900 J4	38,500 J4	None		(1/4)
Lead	74.5 J4	20.4 J4	None		(3/4)
Manganese	1310	801	10	RMEG	4/4
Mercury	ND	ND	None		(0/4)
Nickel	24	19.6	None		(3/4)
Selenium	ND or unusable	Unusable	4	EMEG	0/1*
Vanadium	126	111	None		(1/4)
Zinc	203 J4	77.5 J4	None		(4/4)
ND= Not Detected; J= estimated value, positively identified compound. J4=estimated value, QC outside control limits * Unusable data reduced the number of samples for comparison. ** The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown. The reported FREQ is the minimum.

Table 16

OFF-SITE SEDIMENT (4) ORGANICS:PAHs
July 1988, December 1989 Drainage ways and Background
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION -PICA CHILD		FREQ>C.V. (>ND)
PAHs	ppm	ppm	Source
noncarcinogenic:
Acenaphthene	0.18 J	120	RMEG	0/8
Acenaphthylene	ND	None
Anthracene	0.35 J	600	RMEG	0/8
Benzo(g,h,i)perylene	1.40	None		(4/8)
Fluoranthene	3.90	80	RMEG	0/8
Fluorene	0.14 J	80	RMEG	0/8
2-Methylnapthalene	ND	None		(0/8)
Naphthalene	ND	None		(0/8)
Phenanthrene	1.60	None		(3/8)
Pyrene	4.50	60	RMEG	0/8
carcinogenic:
Benzo(a)anthracene	2.20	None		(4/8)
Benzo(b)fluoranthene	2.60	None		(4/8)
Benzo(k)fluoranthene	2.40	None		(4/8)
Benzo(a)pyrene	1.90	0.12	CREG	4/8
Chrysene	2.70	None		(4/8)
Dibenzo(a,h)anthracene	0.77 J	None		(2/8)
Indeno(1,2,3-c,d)pyrene	1.40	None		(4/8)
ND= Not Detected J = estimated value, positively identified compound. *All maximum concentrations are from the December 1989 data. Only one sample from the 1988 data was considered off-site or background. This sample had no detectable organics. No PAH's were detected in the 1989 background sample.

Table 17

OFF-SITE SEDIMENT (4) OTHER ORGANICS*
July 1988, December 1989 Drainage ways and Background Samples Sediment 0-6"
CONTAMINANT	MAXIMUM CONCENTRATION*	COMPARISON VALUE (C.V.) FOR INGESTION - PICA CHILD		FREQ>C.V. (>ND)
	ppm	ppm	Source
Benzene	ND	24	CREG	0/8
Bis(2-ethyl hexyl) phthalate	1.30**	None		(7/8)
2-butanone	0.008 J**	None		(4/8)
Carbon Tetrachloride	ND	1.4	CREG	0/8
Chloroform	ND	20	EMEG	0/8
Dibenzofuran	ND	2	RMEG	0/8
Di-n-octyl phthalate	0.47 J	None		(2/8)
Total 1,2 DCE (dichloroethene)	0.002	40	RMEG	0/8
Methoxychlor	ND	10	RMEG	0/8
PCB:Aroclor 1254 Aroclor 1260	2.50 0.16 J	0.01	EMEG	4/8 1/8
PCE Tetrachloroethene	0.003 J	0.036	RMEG	0/8
1,1,1 trichloroethane	ND	None		0/8
1,1,2 trichloroethane	ND	8	CREG	0/8
TCE (trichloroethene)	0.002 J	64	CREG	(1/8)
Vinyl Chloride	ND	0.04	EMEG	0/8
ND= Not Detected. J= estimated value, positively identified compound. *All reported maximums, except Aroclor 1260, are from the December 1989 data. ** Bis(2-ethylhexyl)phthalate at 0.16J ppm and 2-butanone at 0.003 J ppm were found in the background sample.

 

Table 18

OFF-SITE SEDIMENT (4) INORGANICS
December 1989 Drainage Ditches
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ >C.V. (>BKGR)
	ppm		ppm	Source
Aluminum	20,800	15,700	None		(3/6)
Antimony	5.4 J, J4	Unusable	0.8	RMEG	1/1*
Arsenic	9.4	4.9	0.4	CREG	6/6
Barium	209	138	140	RMEG	2/6
Beryllium	ND	ND	0.16	CREG	0/6**
Cadmium	ND	ND	0.4	EMEG	0/6**
Chromium (III)	59.4	27.2	2000	RMEG	0/6
Cobalt	36.5	18.3	None		(3/6)
Copper	365	26.6	None		(3/6)
Iron	57,300	26,500	None		(3/6)
Lead	544	29.1	None		(3/6)
Manganese	1320	639	10	RMEG	6/6
Mercury	0.16	ND	None		(1/6)
Nickel	40.8	22.4	None		(1/6)
Selenium	ND	ND	4	EMEG	0/6
Vanadium	133	68.9	None		(4/6)
Zinc	290	153	None		(4/6)
ND= Not Detected; J= estimated value, positively identified compound; J4=estimated value; QC outside control limits. * 5/6 samples were unusable ** The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown. The reported FREQ is the minimum.

Table 19

OFF-SITE SURFACE WATER (4) OTHER ORGANICS
December 1989 Drainage Ditches and Background*
CONTAMINANT	MAXIMUM CONCENTRATION	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ>C.V. (>ND)
	ppb	ppb	Source
Benzene	ND	1.2	CREG	0/5
Carbon Tetrachloride	ND	0.27	CREG	0/5
Chloroform	ND	5.7	CREG	0/5
Dibenzofuran	ND	10	RMEG	0/5
Total 1,2 DCE (dichloroethene)	2.0 J	70	LTHA	0/5
PCB:Aroclor 1254	ND	0.0045	CREG	0/5
PCE Tetrachloroethene	3.0 J	0.67	CREG	1/5
1,1,1 trichloroethane	ND	200	LTHA	0/5
1,1,2 trichloroethane	ND	0.61	CREG	0/5
TCE (trichloroethene)	ND	3.2	CREG	0/5
Vinyl Chloride	ND	0.2	EMEG	0/5
ND= Not Detected J= estimated value, positively identified compound. *The concentrations for the above contaminants were not detected in the background sample .

Table 20

OFF-SITE SURFACEWATER (4) INORGANICS
December 1989: Drainage Ditches, Creeks
CONTAMINANT	MAXIMUM CONC.	BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION		FREQ >C.V. (>BKGR)
	ppb		ppb	Source
Aluminum	1680	296 UJ1	None		(1/4)
Antimony	ND	ND	0.004	RMEG	(0/4)*
Arsenic	ND	ND	0.003	RMEG	(0/4)*
Barium	38.4 J	25.1 J	0.7	RMEG	4/4
Beryllium	3.4 UJ1	ND	8.1	CREG	0/4
Cadmium	3.7 UJ1	ND	0.002	EMEG	(0/4)*
Chromium	5 UJ1	6 J	0.05	RMEG	(0/4)*
Cobalt	ND	ND	None		(0/4)
Copper	20.6 J	ND	1300	PMCL	0/4
Iron	2870	585	None		(3/4)
Lead	4.6 UJ1 J4	1.3 UJ1	0.005	PMCL	(2/4)*
Manganese	248	86.3	1.0	RMEG	4/4
Mercury	ND	ND	None		0/4
Nickel	ND	ND	0.2	EMEG	(0/4)*
Selenium	ND	ND	20	EMEG	0/4
Vanadium	9.7 J	3.3 J	20	LTHA	0/4
Zinc	114	38.5	2100	LTHA	0/4
ND = Not Detected; J= estimated value, positively identified compound; J4=estimated value; QC outside control limits; UJ1=Not detected, the concentration is an estimated/adjusted quantitation limit, blank contamination. * The detection limit is higher than the comparison value, therefore the number of samples exceeding the comparison value is unknown.

Table 21 The only organic compound exceeding background in off-site wells was TCE. Therefore, no organic tables are presented.

OFF-SITE GROUNDWATER (4) INORGANICS
February 1990 A= Oregon National Guard/Camp Withycombe wells* B= A Residential Well C= Fire Protection Wells*
CONTAMINANT	MAXIMUM CONC. (ppb)			BACKGROUND CONC. (BKGR)	COMPARISON VALUE (C.V.) FOR INGESTION
	A*	B	C*	ppb	ppb	Source
Aluminum	19,800	ND	87 UJ1	ND	None
Antimony	ND	ND	ND	ND	0.004	RMEG
Arsenic	ND	ND	ND	1.0 UJ4	0.003	RMEG
Barium	98.9 J	5.7 UJ1	35.7 J	21.4 UJ1	0.7	RMEG
Beryllium	ND	ND	ND	ND	8.1	CREG
Cadmium	ND	ND	ND	ND	0.002	EMEG
Chromium	9.7 J	ND	ND	ND	0.05	RMEG
Cobalt	10.7 J	ND	ND	ND	None
Copper	28.2	28.4	18.8 J	ND	1300	PMCL
Iron	23,000	176	2090	1040	None
Lead	19.8	4.8	1.5 J	ND or 1J	0.005	PMCL
Manganese	932	13.1 J	630	7.6 J	50	RMEG
Mercury	ND	ND	ND	ND	None
Nickel	ND	ND	ND	ND	None
Selenium	Unusable	Unusable	Unusable
Vanadium	42.3 J	3.2 J	ND	ND	20	LTHA
Zinc	51.9	2280	26.4 UJ1	263	2100	LTHA
ND= Not Detected;J= estimated value, positively identified compound; J4=estimated value; QC outside control limits; UJ1=Not detected, the concentration is an estimated/adjusted quantitation limit, blank contamination; UJ4= Not detected, the concentration is an estimated/adjusted quantitation limit, QC outside control limits. * Not used as drinking water.

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