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1. ATSDR > Public Health Assessments & Consultations

PUBLIC HEALTH ASSESSMENT

FLORIDA PETROLEUM REPROCESSORS
DAVIE, BROWARD COUNTY, FLORIDA

APPENDIX

Figure 1. State Map Showing Location of Broward County

Figure 2. Location of Florida Petroleum Reprocessors Superfund National Priorities List Site in Broward County

Figure 3. FPR Site as defined by Florida Department of Health

Figure 4. Soil Sample Locations Outside of the Fenced FPR Property

Figure 5. FPR Site as Defined for Groundwater Contamination North of New River Canal and Detail of Location of Residences Currently Using Private Wells

Table 1. Groundwater under FPR Property Chemicals of Concern

Compounds	Maximum ug/L	Screening Value ug/L	Source of Screening Value	Retain Chemical For Further Evaluation
PCE	260	0.7	CREG	YES
TCE	200,000	3	CREG	YES
1,1,1-Trichloroethane	140,000	200	LTHA	YES
1,1-Dichloroethene	9,800	0.06	CREG	YES
1,1-Dichloroethane	30,000	none		YES
1,2-Dichloroethene Total	270,000	2000	Int. EMEG Child	YES
cis-1,2-Dichloroethene	260,000	3000	Int. EMEG Child	YES
Vinyl Chloride	18,000	0.2	EMEG Child	YES
Toluene	7,600	200	Int. EMEG Child	YES
Chloroethane	6,900	none		YES (Default)
Benzene	14	1	CREG	YES
3,4-Dimethylphenol	160	none		YES (Default)
2-Methylnaphthalene	170	none		YES (Default)
2-Methylphenol (o-cresol)	25	none		YES (Default)
Phenanthrene	8	none		YES (Default
Manganese	410	50	RMEG Child	YES

EMEG: ATSDR's Chronic Environmental Media Evaluation Guidelines for a child
RMEG: Reference Dose Media Evaluation Guide for a child
CREG: Cancer Risk Evaluation Guide for a one in a million excess cancer risk
Int. EMEG ATSDR's Intermediate duration exposure Chronic Environmental Media Evaluation Guidelines for a child
ug/l: microgram per liter
ND/NA = no data, not detected, or not analyzed for

Table 2. Groundwater outside of FPR Property, North of New River Canal Chemicals of Concern

Compounds	Maximum ug/L	Screening Value ug/L	Source of Screening Value	Retain Chemical For Further Evaluation
Manganese	230	50		YES
Bromodichloromethane	1	0.6	CREG	YES
Chloromethane	4	3	LTHA	YES
1,1-Dichloroethene	30	0.06	CREG	YES
1,1-Dichloroethane	27	none		YES
1,2-Dichloroethene Total	160	2000	Int EMEG Child	YES
Chloroethane	10	none		YES
Vinyl Chloride	90	0.2	Chronic EMEG Child	YES

Table 3. Groundwater outside of FPR Property, South of New River Canal Chemicals of Concern

Compounds	Maximum ug/L	Screening Value ug/L	Source of Screening Value	Retain Chemical For Further Evaluation
1,1-Dichloroethene	94	0.06	CREG	YES
TCE	6	3	CREG	YES
1,1-Dichloroethane	83	none		YES
Vinyl Chloride	330	0.2	Chronic EMEG Child	YES
Benzene	10	1	CREG	YES
Manganese	210	50	RMEG Child	YES
Bromodichloromethane	14	0.6	CREG	YES
1,1,2,2-Trichloroethane	4	0.2	CREG	YES

Table 4. Surface Soil inside the fenced FPR Property Chemicals of Concern

Compounds	Max mg/kg	Screening Value mg/kg	Source of Screening Value	Retain Chemical for Further Evaluation
2-Methylnaphthalene	3.7	none		YES (Default)
TCE	80	60	CREG	YES
1,1,1-Trichloroethane	87	none		YES (Default)
Phenanthrene	2.1	none		YES (Default)
1,1-Dichloroethane	2.4	none		YES (Default)
Cobalt	1.1	none		YES (Default)
Copper	19	none		YES (Default)
Lead	300	none		YES (Default)
Benzo(a)pyrene	0.11	0.1	CREG	YES
Benzo(bk)flouranthene	0.1	none		YES (Default)
Benzo(ghi)perylene	0.18	none		YES (Default)
Chrysene	0.074	none		YES (Default)

mg/kg: milligram per kilogram

Table 5. Subsurface Soil inside the fenced FPR Property Chemicals of Concern

Compounds	Max mg/kg	Screening Value mg/kg	Source of Screening Value	Retain Chemical for Further Evaluation
PCE	120	10	CREG	YES
TCE	810	60	CREG	YES
1,1,1-Trichloroethane	490	none		YES (Default)
1,1-Dichloroethane	13	none		YES (Default)
2-Methylnaphthalene	28	none		YES (Default)
Phenanthrene	12	none		YES (Default)
Chloromethane	0.78	none		YES (Default)
Cobalt	1.3	none		YES (Default)
Copper	240	none		YES (Default)
Lead	1600	none		YES (Default)
Methylene Chloride	2	none		YES (Default)
Naphthalene	15	none		YES (Default)
Benzo(bk)flouranthene	0.11	none		YES (Default)
Benzo(ghi)perylene	0.058	none		YES (Default)
Chrysene	0.07	none		YES (Default)

Table 6. Surface Soil outside the fenced FPR Property Chemicals of Concern

Compounds	Max mg/kg	Screening Value mg/kg	Source of Screening Value	Retain Chemical for Further Evaluation
2-Methylnaphthalene	3.7	none		YES (Default)
Phenanthrene	2.1	none		YES (Default)
Endrin Aldehyde	0.0018	none		YES (Default)
Cobalt	0.52	none		YES (Default)
Copper	9.9	none		YES (Default)
Lead	22	none		YES (Default)
Carbazole	0.22	none		YES (Default)
Dibenzofuran	0.065	none		YES (Default)
Benzo(a)pyrene	2.4	0.1	CREG	YES
Benzo(bk)flouranthene	3.8	none		YES (Default)
Benzo(ghi)perylene	0.8	none		YES (Default)
Chrysene	1.5	none		YES (Default)
Dibenzo(ah)anthracene	0.26	none		YES (Default)
Indeno(cd)pyrene	0.81	none		YES (Default)
Benzo(a)anthracene	1.5	none		YES (Default)

Table 7. Subsurface Soil Outside the Fenced FPR Property Chemicals of Concern

Compounds	Maximum mg/kg	Screening Value mg/kg	Source of Screening Value	Location of Maximum
Phenanthrene	0.044	none		YES (Default)
Copper	1.3	none		YES (Default)
Lead	2.5	none		YES (Default)
Copper	1.3	none		YES (Default)
Chrysene	0.053	none		YES (Default)

Table 8. Sediment Data

Compounds	Max mg/kg	Screening Value mg/kg	Source of Screening Value	Retain Chemical for Further Evaluation
Phenanthrene	0.74	none		YES (Default)
Cobalt	1.5	none		YES (Default)
Copper	64	none		YES (Default)
Lead	85	none		YES (Default)
Aluminum	4600	none		YES (Default)
Benzo(a)pyrene	1.4	0.1	CREG	YES
Benzo(bk)flouranthene	3.6	none		YES (Default)
Benzo(ghi)perylene	0.6	none		YES (Default)
Chrysene	1.4	none		YES (Default)
Indeno(cd)pyrene	0.6	none		YES (Default)
Dibutylphthalate	0.23	none		YES (Default)

Table 9. Completed Exposure Pathway Elements

Pathway Name	Exposure Pathway Elements					Time
	Source	Environmental Media	Point of Exposure	Route of Exposure	Exposed Population
Groundwater north of New River Canal	FPR property	Groundwater	Private wells	ingestion inhalation	residents	past
Surface soil inside fenced FPR property	FPR property	surface soil	surface soil on FPR property	ingestion inhalation	residents and workers	past, current, future
Surface soil outside fenced FPR property	FPR property, roadways	surface soil	residences, businesses, undeveloped land	ingestion inhalation	residents	past, current, future
Sediment	FPR property, roadways	sediment	ditch	ingestion inhalation	residents	past, current, future

Table 10. Comparison Values

Compounds	Oral MRL mg/kg-d (ATSDR)	Inhalation MRL ppm (ATSDR)	Reference Dose mg/kg-d (IRIS 1998)	Potency factor (mg/kg-d)-1 (IRIS 1998)	Unit Risk (ug/m3)-1 (IRIS 1998)
PCE	0.05	0.04	0.01
TCE	0.2	0.1
1,1,1-Trichloroethane		0.7
1,1-Dichloroethene	0.009	0.02	0.009	0.6	5E-5
1,1-Dichloroethane
1,2-Dichloroethene Total	0.2 (trans)	0.2
cis-1,2-Dichloroethene	0.3	0.2
Vinyl Chloride	0.00002	0.03		2.3	8.4E-5****
Toluene		1	0.2
Chloroethane		15
Benzene		0.004		0.29	8.3E-6
3,4-Dimethylphenol			0.001
2-Methylnaphthalene
2-Methylphenol (o-cresol)	0.05		0.05
Phenanthrene
Manganese	0.005**	0.00004 mg/m3	0.14
Bromodichloromethane	0.02			0.62
1,1,2,2-Tetrachloroethane	0.04	0.4		0.2	5.8E-5
Chloromethane		0.05	0.004*
Endrin Aldehyde	0.0003***
Cobalt		0.00003 mg/m3
Copper
Lead
Aluminum
Methylene Chloride	0.06	0.03		0.0075	4.7E-7
Naphthalene	0.02	0.002
Carbazole
Dibenzofuran
Benzo(a)pyrene				7.3
Benzo(bk)flouranthene
Benzo(ghi)perylene
Chrysene
Dibenzo(ah)anthracene
Indeno(cd)pyrene
Benzo(a)anthracene
Dibutylphthalate
2-Hexanone

*EPA Office of Water reference dose
**Reference dose for water consumption as opposed to manganese in food
***MRL for endrin
**** Calculated from inhalation potency factor 2.98 (mg/kg/d)-1

Attachment 1
Developing an Exposure Dose

Drinking Contaminated Groundwater
We estimated an exposure dose of each contaminant a person might receive by drinking the contaminated groundwater (Risk Assistant, 1994). We used the maximum contaminant level found in groundwater. Children represent a sensitive subpopulation and doses that are protective of children are most likely protective of adults. For non-cancerous compounds, we estimated the exposure dose that an elementary school child, weighing 24 kilograms (50 pounds), would receive drinking about a half liter of contaminated groundwater a day, 250 days a year for 6 years. For carcinogenic compounds, we estimated an exposure dose that an adult, weighing 70 kilograms (150 pounds), would receive over a lifetime (70 years) of drinking 2 liters contaminated groundwater a day.

Household Use of Contaminated Groundwater
Contaminants in domestic water may evaporate from various water sources in the home and contaminate indoor air. People may be exposed to contaminants by breathing contaminated air. To estimate indoor air concentrations, we used the maximum contaminant level found in groundwater. For non-carcinogenic compounds, we estimated an exposure dose an elementary school child would receive from breathing contaminated indoor air, 9 hours a day, 250 days a year. We estimate children breath at a rate of 0.76 cubic meters an hour. For carcinogenic compounds, we estimated an exposure dose an adult would receive from breathing contaminated indoor air, 21 hours a day, 350 days a year for 70 years (Risk Assistant, 1994).

Exposure to Contaminated Soil
Exposure to surface soil is currently a completed exposure pathway and exposure to subsurface soil is a potential exposure pathway. We assume children consume a significant amount of soil, relative to adults, as a result of outdoor play. When children have access to areas of contaminated soil, they may incidentally eat the soil resulting in a significant source of exposure to contaminants. Even though adults are less likely to eat significant amounts of soil, soil ingestion remains a potentially significant source of exposure to environmental contaminants through hand-mouth activities, smoking and eating. We estimated an exposure dose of each contaminant a child (for potential non-cancer effects) and adult (for potential carcinogenic effects) might receive by coming into contact with contaminated soil.

For non-cancerous compounds in soil, we estimated the exposure dose that an elementary school child, weighing 24 kilograms (50 pounds), would receive by incidentally eating 200 milligrams of contaminated soil 350 days a year for 6 years. Children represent a sensitive subpopulation and doses that are protective of children are most likely protective of adults. For carcinogenic compounds, we estimated an exposure dose that an adult, weighing 70 kilograms (150 pounds), would receive over a lifetime (70 years) of incidentally ingesting 100 milligrams of soil a day, 350 days out of the year (Risk Assistant, 1994).

The amount of dust from contaminated soils residents might breathe was also estimated. For a child we used an inhalation value of 0.76 cubic meters an hour which corresponds to one-third of a day at rest and the rest of the day doing light activity. For adults, we used 1.67 cubic meter per hour which corresponds to on-third of the day at rest and the remaining day divided between light, moderate and heavy activity (Risk Assistant, 1994).

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