HEALTH CONSULTATION

DEKALB PEST CONTROL SERVICES, INCORPORATED
AVONDALE ESTATES, DEKALB COUNTY, GEORGIA

FIGURES

Figure 1. Site Location

Figure 2. Sample Locations

Figure 3. Site Map

TABLES

TABLE 1. GDA SOIL ANALYTICAL DATA*

Contaminant	Concentration (ppm)
	Sample #1	Sample #2
Chlordane	164.80	79.00
Dieldrin	9.94	3.48
Heptachlor epoxide	5.55	4.18

ppm: parts per millon

* These soil samples were collected on January 16, 1991 by the Georgia Department of Agriculture (GDA) in areas where disposed pesticide containers were discovered. GDA performed the analyses and test methods are unknown.

TABLE 2. EPA SOIL ANALYTICAL DATA*

Contaminant	Concentration (ppm)
	Sample Location
	DPC-1	DPC-1D	DPC-2	DPC-3	DPC-4	DPC-5	DPC-6
Heptachlor	1.300	1.320	1.280	0.477	0.277	0.121	0.008
Aldrin		0.093
Heptachlor epoxide	2.420	2.790	2.340	9.270	1.640	1.000
Endosulfan 1	2.060	2.110	2.140	1.500	1.140		0.004
Dieldrin	0.552	0.626	0.865	1.630	1.190	0.135	0.010
4,4'-DDE	0.151	0.201	0.175
4,4'-DDD	0.202	0.260	0.242		0.704	0.093
Endosulfan sulfate	0.179	0.214		0.098		0.075	0.019
4,4'-DDT	0.206	0.276	0.240
Chlordane	22.400	21.900	29.000	14.800	10.400	10.800	0.133
Methoxychlor			0.141
Endrin aldehyde			0.409				0.024
Endosulfan II				0.120		0.077
Endrin					0.207

ppm: parts per million

D: sample results at 100 dilution, duplicate analysis.

*These soil samples were collected to October 3, 1991 by the U.S. Environmental Protection Agency (EPA) in areas where disposed pesticide containers were discovered. EPA performed the analyses and test methods are unknown.

Blanks indicate that samples were not tested for the parameter.

TABLE 3. ANALYTICAL SUMMARY FOR CHLORDANE*

Sample Number	Sample Depth "A" 0"-6"	Sample Depth "B" 6"-12"	Sample Depth "C" 12"-24"
D01	1.61	ND	ND
D02	3.60	ND	17.2
D03	ND	ND	ND
D04	ND	ND	ND
			6.25 (duplicate)
D05	19.2	ND	0.872
			0.842 (duplicate)
D06	0.897	0.959	ND
			ND
D07	ND	ND	ND
			ND
D08	ND	ND	ND
D09	21.3	6.10	0.197
D010	0.221	23.3	1.60
D011	ND	ND	ND
DO12	ND	ND	ND
D013	0.199	ND	ND
D014	ND	ND	ND
D015	ND	ND	ND
D016	ND	ND	ND

All results are in parts per million.
ND: Non Detect
*Source: OHM Remediation Services Corp. 12/95

TABLE 4. ANALYTICAL SUMMARY: CONFIRMATION SAMPLES FOR CHLORDANE*

Sample Number	Chlordane Results Sample Depth 0"-6"
DP-01	2.70
DP-02	0.87
DP-03	0.20
DP-04	0.15
DP-05	0.41
DP-06	0.036
DP-07	ND
DP-08	40.00**
DP-09	0.076

All results are in parts per million.

ND: No Detect

*Source: OHM Remediation Services Corp., 12/95
**Confirmation results indicate that the northeast quadrant exceeded Type I Risk Reduction Standards (RRS) for chlordane in soil. An additional volume of soil (15 feet by 15 feet by 1 foot deep) was excavated. Results of a second confirmation sample indicate chlordane levels below Type I RRS for chlordane in soil.

TABLE 6. MAXIMUM CONCENTRATIONS AND COMPARISON VALUES FOR SOIL

Contaminant	Maximum Concentration (ppm)	Comparison Values*		Estimated Dose and MRL** (mg/kg/day)
		Concentration (mg/kg)	Reference
Chlordane	164.80	Pica Child: 1.0 Child: 30 Adult: 400 0.5	Chronic EMRG            "            " CREG	Child: 0.003 Adult: 0.0001 MRL=0.0006
Dieldrin	9.94	Pica Child: 0.1 Child: 3 Adult: 40 0.04	Chronic EMRG            "            " CREG	Child: 0.0002 Adult: 0.000007 MRL=0.00005
Heptachlor epoxide	5.55	Pica Child: 0.03 Child: 0.7 Adult: 9.0 0.08	RMEG       "       " CREG	NA

ppm: parts per million
mg/kg: milligrams per kilogram

EMEG: Environmental Media Evaluation Guide
RMEG: Reference Dose Media Evaluation Guide
CREG: Cancer Risk Evaluation Guide (1x10^-6 excess cancer risk)
MRL: Minimal Risk Level
NA: Not Analyzed

*Source: ATSDR, Soil Comparison Values (expires 3/98)
**Source: ATSDR, Health Guidelines Comparison Values (expires 3/98)

Table 5a. Population and Housing Units

Table 5b. Population by Race

Table 5c. Population by Hispanic Origin

Table 5d. Population - Adult and Juvenile

Table 5e. Population - Children and Senior Citizens

APPENDIX A

Comparison Values

Comparison values are contaminant concentrations that are found in specific media and that are used to select contaminants for further evaluation. The values provide guidelines that are used to estimate a dose at which health effects might be observed. Comparison values are listed and described below.

Cancer Risk Evaluation Guides (CREGs) are estimated contaminant concentrations that would be expected to cause no more than one excess cancer in one million (1x10') persons exposed over a lifetime. CREGs are calculated from EPA's cancer slope factors, which indicate the relative potency of a carcinogenic chemical.

Environmental Media Evaluation Guides (EMEGs) are based on ATSDR minimal risk levels and factor in body weight and ingestion rates. Reference Dose Media Evaluation Guides are the same as EMEGs only they are based on EPA reference doses (RfDs).

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

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