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APPENDIX C: DATA TABLES

 

Table 1.

Pesticides and PCBs detected in On-site Soil Samples.
Substance Level
(ppm)(4)
Sampling depth
(inches)
Comparison criteria
Level (ppm) Source

Surface soil

Arochlor, total 0.36-2.4
(CDH, 1989)
unspecified depth,
grab samples
0.09(5) CREG
0.3 Chronic
EMEG
(child)
Chlordane 2.0-3.5
(CDH, 1989)
unspecified depth,
grab samples
0.5 CREG
Subsurface soil
Arochlor 1242

1.9 0-36 composite 0.09(6)

0.04



0.3
CREG

Pica child
RMEG


Chronic
EMEG
(child)
Arochlor 1254 280 0-36 composite
Arochlor 1221 0.094
(UNC Geotech, 1990b)
0-36, 0-42 composite
Arochlor 1248

9.5
(UNC Geotech, 1990b)
0-36, 0-42 composite
Arochlor 1260 0.56
(UNC Geotech, 1990b)
0-36, 0-42 composite
delta-BHC 0.45 0-36 composite NONE  
gamma-chlordane 1.5 0-36 composite NONE  
Dieldrin 0.2 0-36 composite 0.04 CREG
Endosulfan sulfate 2.2 0-36 composite NONE  
Endosulfan I 0.13
(UNC Geotech, 1990b)
0-36, 0-42 composite NONE  
Endosulfan II 1.2 0-36 composite NONE  
Endrin ketone 0.52
(UNC Geotech, 1990b)
0-36, 0-42 composite NONE  
Heptachlor epoxide 0.32 0-36 composite 0.08 CREG

 

Table 2.

Volatile and Semi-volatile Organic Compounds detected in On-site Soil Samples.
Substance Level
(ppm)(7)
Sampling
depth
(inches)
Comparison
criteria
Level
(ppm)
Source

Volatile organic compounds

1,1,1-Trichloroethane 0.67
(Ecology and Environment, 1992b)
36 NONE  
Bis(2-ethylhexyl)phthalate 410 0-36,
0-42 composite
NONE  
Dibenzofuran 7.1 NONE  
2'-butanone 0.014 NONE  
Di-n-octyl phthalate 13 NONE  
Pentachlorophenol 43 6 CREG
Toluene 0.19
(Ecology and Environment, 1992b)
36 400 RMEG
(pica)
Semi-volatile organic compounds
Benzo(a) anthracene 4.2 0-36,
0-42 composite
NONE  
Benzo(a) pyrene 3.8 0.1 CREG
Benzo(b) fluoranthene 3.8 NONE  
Benzo(g,h,i) perylene 2.8 NONE  
Benzo(k) fluoranthene 3.9 NONE  
Butylbenzyl phthalate 0.81 0-36 composite 400 RMEG
(pica)
Chrysene 3.6 0-36,
0-42 composite
NONE  
Indeno(1,2,3-cd) Pyrene 2.9 NONE  
2-Methyl naphthalene 37
(Ecology and Environment, 1992b)
0-36 composite NONE  
Naphthalene 6.6 0-36,
0-42 composite
NONE  
Phenanthrene 12 NONE  

 

Table 3.

Metals detected in On-site Soil Samples.
Substance Level(8)
(mg/kg)
Sampling
depth
Comparison criteria
Level
(ppm)
Source
Surface soil
Arsenic 9.9 - 40
(CDH, 1990b)
not reported 0.5 CREG 20 RMEG
(child)
Lead over
10,000
(Ecology and
Environment,
1991c)
0-3" NONE  
Mercury 0.14 - 1.5
(CDH, 1990a)
not
reported
100 iEMEG
(child)(9)
Subsurface soil (0-36" composite)
Beryllium 1.4 0.2 CREG 300 RMEG
(child)
Cadmium 53.3 1
cEMEG
(child)
50 RMEG
(child)
Chromium 3,520 300 RMEG
(child)(10)
Cobalt 469 NONE  
Lead 27,300 NONE  
Thallium 0.72 NONE  
Zinc 21,400 20,000 RMEG
(child)

 

Table 4.

Waste Material Samples from Hansen Containers Facility.
Substance Concentration (µg/kg)
VOCs(11)
Methylene chloride 18,500
Acetone 229,000
1,1-DCA 265
2-butanone 13,800
1,1,1-TCA 9,130
Benzene 1,260
4-methyl-2-pentanone 2,130
TCE 1,180
Toluene 4,190
ethylbenzene 6,200(12)
ethylbenzene 2,760
o-xylene 10,200
m+p-xylenes 3,280
Xylenes, total 32,000(13)
styrene 80,000

 

Table 5.

Waste Material Samples from Hansen Containers Facility.
Substance On-site samples(14)
(ppm)

METALS

Aluminum 11,200
Antimony 2.9
Arsenic 8 (CDH, 1990a)
Barium 2,120
Cadmium 37 (CDPHE, 1990a)
Chromium (unspecified species) 2,730
Cobalt 79.3
Iron 177,000
Lead 20,000 (CDPHE, 1990a)
Magnesium 8,700
Manganese 1,110
Mercury 1.1
Nickel 534
Selenium 23 (CDPHE, 1990a)
Vanadium 344
Silver 94.9

 

Table 6.

Ambient Air Contaminant Data. September 12, 1989.
Analyte Sample site Level
Detected
(ppm)
Comparison Value
Level
(ppm)
Source
Ethyl benzene Scan of parking
lot
1.037 0.3 iEMEG/
MRL
Xylene 4.010 0.05 aEMEG/
MRL

 


Sampling depth: 0-1 inch.

(15).">

Table 7.

Off-site Surface Soil Samples: September 24-26, 1991(15).
Inorganic substances Concentration
detected(16)
mg/kg
Comparison value
level
(ppm)
Source
aluminum 11,200 NONE  
arsenic 222 0.5 CREG
barium 1,370 100 pica child RMEG
cadmium 4.5 1 pica child EMEG
chromium 67.5 10 pica child RMEG
(Cr VI)
copper 242 NONE  
lead 1,800 NONE carcinogen
magnesium 13,400 NONE  
manganese 400 300 pica child RMEG
mercury 1.8 NONE  
vanadium 69.3 6 pica child iEMEG
zinc 2,620 600 pica child RMEG

 

Table 8.

Off-site Soil Sampling - Riverside Community: September 24-26, 1991.
Sampling depth: 0-1 inch.
Organic substances

Concentration
detected(17)
(ppm)

Comparison Value
Level
(ppm)
Source
benzo(a)anthracene 0.0013 NONE, carcinogen
benzo(b)fluoranthene 0.0013 NONE, carcinogen
benzo(k)fluoranthene 0.00074 NONE, carcinogen
benzo(ghi)perylene 0.00038 NONE  
chrysene 0.0012 NONE, carcinogen
dibenzo(a,h)anthracene 0.00027 NONE, carcinogen
di-n-octyl-phthalate 0.0007 NONE  
indeno(1,2,3)pyrene 0.00071 NONE, carcinogen
phenanthrene 0.0016 NONE  

 

Table 9.

Off-site Soil Sampling: Riverside Community: September 24-26, 1991.
Sampling depth: 0-1 inch.
Pesticides and PCBs Concentration
detected(18)
Comparison value
ppm Level
(ppm)
Source
d-BHC 0.000055 NONE  

 

Table 10.

Off-site Soil Sampling - Riverside Community: September 24-26, 1991.
Sampling depth: 0-1 inch.
  TEF Range (ppm)(19) Comparison Value
Dioxins and furans 0.0 - 0.0003 (20) NONE, carcinogen

 

(21). Depth: 0-1 inch.">

Table 11.

Lead Levels in Residential Soils: September 24-26, 1991(21). Depth: 0-1 inch.
Categories Range (ppm) Frequency Relative
Frequency
(%)
1 0 - 300 120 93.75
2 301 - 600 5 3.91
3 601 - 900 1 0.78
4 901 - 1200 1 0.78
5 1201 - 1500 0 0.00
6 1501 - 1800 1 0.78
TOTAL 128 100

 

(22). Sampling depth: 0-1 inch.">

Table 12.

Soil Lead Levels in the 0 to 300 ppm Category(22). Sampling depth: 0-1 inch.
Categories Range (ppm) Frequency Relative
Frequency
(%)
1 0 - 100 55 45.83
2 101 - 200 54 45.00
3 201 - 300 11 9.17
TOTAL 120.00 100.00

 

Table 13.

Exposure Pathways at Hansen Container and Riverside Community.
Pathway name EXPOSURE PATHWAY ELEMENTS Time frame
Source Media Point of Exposure Route of Exposure Exposed Population
COMPLETED EXPOSURE PATHWAYS
Surface soil Hansen Containers Site Soil/Dust On-site soil Ingestion/
Inhalation/
Dermal
Contact
Adults and children on site Past
Off-site soil Riverside Community members Past, Present, Future
Soil/Dust
Fumes
Work
stations & lunch room
Youth and Adult site workers Past
Air Incineration Operation & related activities at the site Air Off-site Inhalation Riverside
Community
members
Past
Remediation activities at the site
Incineration Operation & related activities at the site On-site Adults and
children on site
Work
stations & lunch room
Youth and Adult
site workers
Table 13 (continued): Exposure Pathways at Hansen Container and Riverside Community.
Pathway name EXPOSURE PATHWAY ELEMENTS Time frame
Source Media Point of Exposure Route of Exposure Exposed Population
POTENTIAL EXPOSURE PATHWAYS
Soil gas contaminants migrating off-site Hansen Containers Site Soil gas Off-site Inhalation Riverside
Community
members
Past, Present, Future
Secondary exposure to lead migrating off-site Hansen Containers Site Dust on worker's clothes Residential Homes Inhalation Residents
living with a site
worker
Past
On-site radioactive material Hansen Containers Site Space On-site External Children &
Adults on site
Past
ELIMINATED EXPOSURE PATHWAYS
Waste material Hansen Container Drummed
waste
NONE      
On-site subsurface soil Hansen Container Subsurface
soil
NONE      
Groundwater Hansen Container NONE        

 

Table 14.

Results Blood-lead Testing at Riverside Community: September 23 - 26, 1991.
Blood lead level (µg/dL) Age groups Total
9 months to less
than 6 years of
age
6 to 18 years of
age
Adults
Less than 4 26 57 87 170
4 - 9 21 29 56 106
10 - 14 5 1 2 8
15 - 19 1 1 1 3
Total 53 88 146 287

 

APPENDIX D: ADDITIONAL INFORMATION

Comparison values

Comparison values for ATSDR Public Health Assessments are contaminant concentrations inspecific media that are used to select contaminants for further evaluation. The valuesprovide guidelines used to estimate a dose at which health effects might be observed.Comparison values used in the Environmental Contamination and Other Hazards and the PublicHealth Implications sections of this document are listed and described below.

  • CREG   =   Cancer Risk Evaluation Guides

  • EMEG   =   Environmental Media Evaluation Guides

  • MCL   =   Maximum Contaminant Level (µg/L)

  • MRL   =   Minimal Risk Level (mg/kg/day)

  • PEL   =   Permissible Exposure Limit (mg/m3)

  • RfD   =   Reference Dose (mg/kg/day)

Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations thatwould be expected to cause no more than one excess cancer in a million (1 in 10-6)persons exposed over a lifetime. CREGs are calculated from EPA's cancer slope factors.

Environmental Media Evaluation Guides (EMEGs) are based on ATSDR minimal risk levels(MRLs) and factor in body weight and ingestion rates.

Lower Explosive Limit (LEL) is the lower limit of flammability of a gas or vapor atordinary ambient temperatures expressed in percent of the gas or vapor in air by volume.

Maximum Contaminant Levels (MCLs) and Lifetime Health Advisories (LTHAs) representcontaminant concentrations that the EPA deems protective of public health (considering theavailability and economics of water treatment technology) over a lifetime (70 years) at aningestion rate of 2 liters of water per day. Child Longer-Term Health Advisories (CLHAs)are derived in the same manner, but using a body weight and ingestion rate appropriate fora child.

A Minimal Risk Level (MRL) is an estimate of daily human exposure to a chemical (inmg/kg/day) that is likely to be without an appreciable risk of non-carcinogenicdeleterious effects over a specified duration of exposure. MRLs are based on human andanimal studies and are reported for acute (< 14 days), intermediate (15-364days), and chronic (> 365 days) exposures. MRLs are published in ATSDRToxicological Profiles for specific chemicals.

The Occupational Safety and Health Administration's (OSHA) Permissible Exposure Limit(PEL) in air is an 8-hour, time-weighted average developed for the workplace. The levelmay be exceeded, but the sum of the exposure levels averaged over 8 hours must not exceedthe limit.

EPA's Reference Dose (RfD) is an estimate of the daily exposure to a contaminant thatis unlikely to cause adverse health effects. However, RfDs do not consider carcinogeniceffects.

Other acronyms and abbreviations used in this document are:



Units of measurement

  • ppm
= milligrams per liter (mg/L water)
milligrams per kilogram (mg/kg soil)
milligrams per liter (mg/L air)
  • kg
= kilogram
  • mg
= milligram
  • µg
= microgram
  • L
= liter
  • m3
= cubic meter

 

FOOTNOTES

1. Arochlor is the common name for polychlorinated biphenyls (PCBs).

2. The median is that value in the "middle" of all thevalues once all these values have been organized from the smallest to the largest.

3. Half-life is the time required for half of the total amount of asubstance to disappear from the blood. In the case of lead in blood, it takes 30 days forhalf of the total amount of lead to leave the blood and be deposited in bone and othertissues and fluids.

4. All from Ecology and Environment, 1992b,unless otherwise noted.

5. For PCBs.

6. For PCBs.

7. From UNC Geotech 1990b, unlessotherwise noted.

8. All from Ecology and Environment, 1992b,unless otherwise noted.

9. For inorganic mercury.

10. For Cr VI.

11. EPA, 1990.

12. Ecology and Environment, 1992b.

13. Ecology and Environment, 1992b.

14. All from Ecology and Environment,1992b unless otherwise noted.

15. All residential soil samples were grab samples.

16. All from Ecology and Environment,1992a, unless otherwise noted.

17. All from Ecology and Environment,1992a, unless otherwise noted.

18. All from Ecology and Environment,1992a, unless otherwise noted.

19. All from Ecology and Environment,1992a, unless otherwise noted.

20. Derived from data obtained from Ecology and Environment, 1992.

21. Ecology and Environment, 1992a.

22. Ecology and Environment, 1992a.



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