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


FIGURES

Figure 1.  General Location Map
Figure 1. General Location Map

Figure 2.  Location Map
Figure 2. Location Map

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

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

Figure 5.  Monitoring Well Location Map (February 1990)
Figure 5. Monitoring Well Location Map (February 1990)

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

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

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