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PETITIONED PUBLIC HEALTH ASSESSMENT

CALDWELL SYSTEMS INCORPORATED
LENOIR, CALDWELL COUNTY, NORTH CAROLINA


APPENDIX A - Figures


Figure 1. Site Map of Caldwell Systems Property


Figure 2. Topographic Map



APPENDIX B - Tables



Table 1.

Contaminants of Concern in On-site Groundwater (1)
ContaminantRange (ppb)Comparison Value
(ppb)
Source
1,2-Dichloroethane
<5-4,400
0.38 CREG
1,1-Dichloroethene
<5-68
0.058CREG
Tetrachloroethane
<3-83
100RfDC
1,1,1-Trichloroethane
<5-720
200LTHA
Lead
<2-25
15MCL
CREG = Cancer Risk Evaluation Guide
RfD-C = Reference Dose concentration
LTHA = Lifetime Health Advisory


.

Table 2.

Contaminants of Concern in On-site Soil (1)
ContaminantRange (ppb)Comparison Value
(ppb)
Source
Surface Soils
1,1,1-Trichloroethane
<6-7
na
na
Polychlorinated Biphenyls,
1248
<540-48,000
91
CREG
Lead
<20,000 -
45,000
na
na
Subsurface Soils
Polychlorinated Biphenyls,
1248
<540-624
91
CREG
Lead<20,000 -
430,000
na
na
na = no comparison value available
ppb = parts per billion




Table 3.

Contaminants of Concern in On-site Wastes (1)
ContaminantRange (ppb)Comparison Value (ppb)Source
1,1,1-Trichloroethane<2 - 25200LTHA
Lead<2 - 2515MCL



.

Table 4.

Contaminants of Concern in Off-site Groundwater (1)
Contaminant Range (ppb)Comparison Value (ppb)Source
1,2-Dichloroethane<1 - 1.50.38CREG
1,1-Dichloroethene<1 - 10.058CREG
Lead<2 - 1415MCL



Table 5.

Contaminants of Concern in Off-site Surface Water (1)
Contaminant Range (ppb)Comparison Value (ppb)Source
1,2-Dichloroethane<1 - 8.150*EMEG
1,1-Dichloroethene<1 - 2.72000**EMEG
1,1,1-
Trichloroethane
<2 - 31200LTHA
Lead<2 - 1415MCL
* EMEG based on acute MRL
** EMEG based on intermediate MRL
ppb = parts per billion


Table 6.

Completed Exposure Pathways
PATHWAY NAMEEXPOSURE PATHWAY ELEMENTSTIME
SOURCEENVIRONMENTAL
MEDIA
POINT OF
EXPOSURE
ROUTE OF
EXPOSURE
EXPOSED
POPULATION
Former Employee Waste Stream Wastes/Sludge WorkplaceIngestion, Inhalation,
Skin contact
On-site workersPast
Former Workers'
Families
Wastes Work ClothesWorkers' residencesIngestion, Inhalation,
Skin contact
On-site workers' familiesPast
Ambient Air Incinerator AirResidencesInhalation,
Ingestion, Skin contact
Residents surrounding CSIPast
Haas Well Waste Disposal GroundwaterResidential wellIngestion,
Inhalation,
Skin contact
Residents at Haas FarmPast



Table 7.

Potential Exposure Pathways
PATHWAY NAMEEXPOSURE PATHWAY ELEMENTSTIME
SOURCE ENVIRONMENTAL
MEDIA
POINT OF
EXPOSURE
ROUTE OF
EXPOSURE
EXPOSED
POPULATION
Residential WellsOn-site wastesGroundwaterResidential WellsIngestion, Inhalation,
Skin contact
Residents surrounding CSIFuture
On-site ContaminantsTank farm liquidsSoils,
Residual liquids
On siteIngestion, Inhalation,
Skin contact
On-site workers, trespassersPresent,
Future
Off-site SpringsIllicit waste disposalSurface WaterSprings on former HaasFarmInhalation,
Ingestion
Residents surrounding CSIPresent,
Future



Table 8.

Eliminated Exposure Pathway
PATHWAY NAMEEXPOSURE PATHWAY ELEMENTSTIME
SOURCEENVIRONMENTAL
MEDIA
POINT OF
EXPOSURE
ROUTE OF
EXPOSURE
EXPOSED
POPULATION
FishOn-site surface waterrunoffsurface water/food chainfish in upper Little Riverand Gunpowder CreekIngestionConsumersPast, Present,Future



Table 9.

Selected Vital Statistics for 1975
ItemCaldwell CountyNorth Carolina
NumberRateNumberRate
Live Births
Total
Male
Female

918
483
435

15.1
8.0
7.2

80,885
41,363
39522

14.8
7.6
7.3
Premature Births
76
8.3
7043
8.7
Fetal Deaths
8
8.6
1018
12.4
Deaths (excluding fetal)

AGE:

    0-4 years
    5-14 Years
    15-24 years
    25-34 years
    35-44 years
    45-54 years
    55-64 years
    > 64 years
    Total
24
3
16
10
23
44
87
256
463
5.0
0.3
1.4
1.1
3.1
6.8
17.0
54.0
7.6
1775
409
1385
1299
1962
4713
8174
26,043
45,760
4.2
0.4
1.2
1.6
3.3
8.0
16.9
52.8
8.4



Table 10.

Selected Vital Statistics for 1980
ItemCaldwell CountyNorth Carolina
NumberRateNumberRate
Live Births
Total
Male
Female

859
413
446

12.7
6.1
6.6

84,481
43,241
41,240

14.4
7.4
7.0
Premature Births
63
7.3
6709
7.9
Fetal Deaths
12
13.8
877
10.3
Deaths (excluding fetal)

AGE:

    0-4 years
    5-14 Years
    15-24 years
    25-34 years
    35-44 years
    45-54 years
    55-64 years
    > 64 years
    Total

19
2
15
14
14
47
86
284
481
3.6
0.2
1.3
1.3
1.6
6.6
14.2
48.0
7.1
1414
297
1359
1345
1857
4000
8352
29,802
48,426
3.5
0.3
1.2
1.4
2.7
6.7
15.2
49.5
8.2



Table 11.

Cancer Deaths and Death Rates, 1984-1988
SiteCaldwell CountyNorth
Carolina
NumberCrude
Rate
*Adjusted
Rate
TOTAL CANCER
632
179.8
187.2
184.00
Colon
58
16.5
16.8
19.6
Lung
173
49.2
45.0
51.7
Female Breast
48
26.7
28.3
31.2
Prostate
38
22.2
30.1
24.5
* Age-race-sex-adjusted using 1984-1988 N.C. population as standard


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