ATSDR-PHA-HC-Lenz Oil Service Incorporated-p4

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PUBLIC HEALTH ASSESSMENT

LENZ OIL SERVICE, INC.
LEMONT, DUPAGE COUNTY, ILLINOIS

Table 1: Waste Materials Accepted by Lenz Oil
Table 2: Organic Groundwater Contaminants
Table 3: Inorganic Groundwater Contaminants
Table 4: Volatile Organic Soil Contaminants
Table 5: Semivolatile Organic and PCB Soil Contaminants
Table 6: Inorganic On-Site Soil Contaminants
Table 7: Inorganic Surface Water Contaminants
Table 8: Organic Contaminants of Concern
Table 9: Inorganic Contaminants of Concern
Table 10: Soil Gas Investigation
Table 11: Off-Site Air Monitoring
Table 12: USEPA TRI Data
Table 13: On-Site Soil Contaminants Before and After Incineration
Table 14: Completed Exposure Pathways
Table 15: Potential Exposure Pathways

Table 1

WASTE AND NONWASTE STORAGE SUMMARY
LENZ OIL SERVICE INC.

Waste Materials Accepted
Waste Oils	Spent Solvents

Motor oil Hydraulic oil Cutting oil Lubricating oil Transformer oil Other Wastes Pigments Inks Kerosene Aliphatic hydrocarbons (nonspecific) Aromatic hydrocarbons (nonspecific) Petroleum hydrocarbons (nonspecific) Chlorinated hydrocarbons (nonspecific)	Oxygenated solvents Methyl ethyl ketone Toluol/Toluene Ethanol Hexane Heptane Acetate Alcohol Zylol/Xylene Butanol Ethyl acetate Aromatic naptha Aliphatic naptha 1,1,1-Trichloroethane Acetone Naptha Trichloroethene Methylene chloride

Nonwaste Materials Stored
Asphalt	Diesel Fuel	Gasoline

Source: Environmental Resources Management-North Central, Inc.
Remedial Investigation Report, Revision 1, October 16, 1992

Table 2.
LENZ OIL ORGANIC GROUNDWATER CONTAMINANTS (in ppb).
Contaminant	NONAQUEOUS LAYER ON-SITE		SHALLOW WELLS				INTERMEDIATE WELLS		DEEP WELLS			Comparison Value	Source
	WELL G106L	WELL MW5S	ON-SITE WELLS		OFF-SITE WELLS		ON-SITE WELLS	OFF-SITE WELLS	UP GRADIENT	FIVE ON-SITE WELLS	THREE OFF-SITE WELLS
	WELL G106L	WELL MW5S	n=7	range	n=3	range	N=1 G104D	N=2	UP GRADIENT	FIVE ON-SITE WELLS	THREE OFF-SITE WELLS
Benzene	ND	ND	1	340J	ND	-	ND	ND	NT	10	NT	1	CREG
Toluene	64,000J	ND	ND	-	ND	-	ND	ND	NT	4J	NT	200	IEMEG child
Ethylbenzene	320,000	45,000J	ND	-	ND	-	ND	ND	NT	NT	NT	700	LTHA/MCL
Xylenes	1,700,000	180,000J	ND	-	ND	-	ND	ND	NT	NT	NT	2,000	IEMEG child
Chloroethane	ND	ND	1	100J	1	4J	ND	5J	NT	53	NT	NONE	-
Vinyl chloride	ND	ND	ND	-	1	11J	ND	15J	NT	NT	NT	0.2	CEMEG child
1,1-Dichloroethane	ND	ND	4	2J-28J	1	60	1	4J	NT	NT	NT	NONE	-
1,2-Dichloroethane	ND	ND	1	3J	ND	-	ND	ND	NT	NT	NT	0.4	CREG
1,1-Dichloroethene	ND	ND	1	5J	1	5	ND	3J	2J	NT	2J	0.06	CREG
Trichloroethene	ND	ND	1	2J	1	6	ND	3J	NT	NT	NT	3	CREG
Carbon tetrachloride	ND	ND	ND	-	ND	-	ND	ND	3J	NT	3J	0.3	CREG
Tetrachloroethene	ND	ND	ND	-	1	2J-3J	ND	ND	2J	NT	2J	0.7	CREG
Naphthalene	210,000J	150,000J	2	460J-800J	ND	-	ND	ND	NT	NT	NT	20	LTHA
2-Methylnaphthalene	1,300,000	1,000,000	2	1,800-4,000	ND	-	ND	ND	NT	NT	NT	NONE	-
Fluorene	100,000	120,000J	2	120J-420J	ND	-	ND	ND	NT	NT	NT	400	RMEG child
n-Nitrosodiphenylamine	250,000J	ND	ND	-	ND	-	ND	ND	NT	NT	NT	7	CREG
Phenanthrene	250,000J	27,000	3	2J-1,000J	ND	-	ND	ND	NT	NT	NT	NONE	-
Acenaphthene	58,000J	ND	1	72J	ND	-	ND	ND	NT	NT	NT	600	RMEG child
2,4-Dinitrotoluene	66,000J	ND	ND	-	ND	-	ND	ND	NT	NT	NT	20	CEMEG child
Aroclor-1242	30,000J	19,000J	2	56-160	ND	-	ND	ND	NT	NT	NT	0.7	RMEG (1016) child
Aroclor-1260	22,000J	17,000J	2	51-97J	ND	-	ND	ND	NT	NT	NT	0.7	RMEG (1016) child

ppb = parts per billion (or micrograms of contaminant per liter of sample).
ND = not detected
J = estimated value
- = not applicable
NT = not tested or sample was unusable

Table 3.
LENZ OIL INORGANIC GROUNDWATER CONTAMINANTS (in ppb).
Contaminant	NONAQUEOUS LAYER ON-SITE WELLS		SHALLOW WELLS				OFF-SITE Intermediate Wells		DEEP WELLS				Drinking water comparison values		UPGRADIENT BACKGROUND WELLS

Contaminant	NONAQUEOUS LAYER ON-SITE WELLS		ON-SITE		OFF-SITE		OFF-SITE Intermediate Wells		ON-SITE		OFF-SITE		Drinking water comparison values		UPGRADIENT BACKGROUND WELLS
G106L	MW5S	n=6	range	n=3	range	MW7S	G102D	n=5	range	n=3	range	value	source	G101D	G101M	G101L
Aluminum	21,400	17,100	6	3,320-68,700J	3	1,730J-11,400	5,200J	434J	5	233J-4,940J	3	371-1,280	NONE	-	731J	22,700J	940J
Antimony	NT	NT	NT	-	NT	-	NT	NT	1	13.7J	NT	-	4	RMEG child	NT	NT	NT
Arsenic	1,900	5,800	6	8.5J-92	3	7.7J-41.7J	6.9J	10.7J	3	3J-5.1J	3	2.1J-5.4J	3	CEMEG child	NT	3.3J	NT
Barium	146,000	219,000	6	115-1,410J	3	43.7-81.5J	123J	51.8	5	32-117	3	30.7-46.6	700	RMEG child	28.4	126J	23.4
Cadmium	11,200	NT	1	1.6J	1	1.1J	NT	NT	NT	-	NT	-	5	RMEG child	NT	ND	NT
Chromium	5,700	4,600J	6	25.7J-117J	3	13.2J-32.1	17.1	42.2	2	4J-7.2J	2	5.5-6.6	50 (VI)	RMEG child	NT	38.9J	NT
Copper	NT	2,200	6	12.4J-212J	3	12.4-102	16.6J	9.2	4	3.2-16J	2	3.7-4	1,300	MCL	3.4	82.9J	NT
Lead	107,000	127,000J	6	55.4-564	2	26.3-31	NT	NT	NT	-	NT	-	15	MCL	NT	ND	NT
Manganese	1,400J	2,300J	6	167-4,650	3	362-614	452J	182	5	86-263	3	57.9-206	50	RMEG child	39.7	2,010	42.4
Mercury	NT	NT	2	.31J-.57J	1	.24J	NT	NT	NT	-	NT	-	NONE	-	NT	ND	NT
Nickel	2,100J	1,300J	6	19.6-164J	3	14.9-50.7	20.4J	15.8	4	4.3-14.9	2	4.7-5.3	100	LTHA/MCL	NT	76.3J	NT
Selenium	180J	370J	NT	-	NT	-	NT	NT	NT	-	NT	-	20	CEMEG child	NT	NT	NT
Vanadium	4,300J	810J	6	13-130J	2	15.4-22.1	NT	NT	NT	-	1	3.5	30	IMEG child	NT	45.4J	NT
Zinc	7,100J	3,300J	6	25.3J-386J	2	44.6J-99.5	48J	NT	NT	-	1	21.9J	2,000	LTHA	NT	268J	NT

ppb = parts per billion
ND = not detected
J = estimated value
- = not applicable
NT = not testes or sample was unusable

Table 4.
LENZ OIL VOLATILE ORGANIC SOIL CONTAMINANTS (in ppm).
Contaminants	Shallow Borings - area not excavated		Deep Bores		Phase II Bores		Drainage Ditch Surface Soil		Ditch Sediments	Comparison Values(a)	Source
Contaminants	n=14	range	n=15	range	n=38	range	n=12	range	n=6	Comparison Values(a)	Source
Benzene	4	0.008-0.15J	7	0.010-0.039	4	0.004-0.13	ND		ND	20	CREG
Ethylbenzene	6	0.008-0.041	6	0.008-1.0	13	0.008J-11.0	1	0.012	ND	5,000	RMEG
Xylenes	4	0.074J-0.39	5	0.041-7.5	16	0.004J-42.0	1	0.07	ND	10,000	RMEG
Toluene	6	0.004J-0.081	4	0.01-4.0	20	0.002J-.05	1	0.011	ND	1,000	IEMEG
1,1,1-Trichloroethane	3	0.003J-0.007	4	0.003J-0.16	26	0.004J-0.12	ND		ND	NONE	NONE
Trichloroethene	6	0.003J-0.22J	3	0.38-0.91	6	0.004J-.011J	1	0.02J	ND	60	CREG
Tetrachloroethene	9	0.002J-0.28J	5	0.007-2.8	7	0.006J-0.23J	1	0.041J	ND	10	CREG

(a) = values are for child
ppm = parts per million
ND = not detected
J = estimated value

Table 5.
LENZ OIL SEMIVOLATILE ORGANIC and PCB SOIL CONTAMINANTS (in ppm).
Contaminant	Phase I Shallow Bores		Phase I Deep Bores		Phase II Bores Resampled (PCBS Phase I & II)		Phase II Shallow Bores - outside excavated area		Phase II Deep Soil Bores - outside excavated area		Surface Soil Drainage Ditch		Sediments		Comparison Value*	Source
Contaminant	n=15	range	n=14	range	n=16	range	n=11	range	n=9	range	n=12	range	n=6	range	Comparison Value*	Source
Anthracene	7	0.065J-1.2J	4	0.079J-0.47J	6	0.031J-2.2J	3	0.11J-0.67J	3	0.16J-1.7J	7	0.049J-0.49J	5	0.061J-2.6	600/20,000	RMEG
Naphthalene	5	0.048J-0.240J	6	0.053J-5.2	3	0.067J-10.0	1	2.1	1	0.63J	2	0.09J-0.099J	ND	-	NONE	-
Acenaphthene	4	0.11J-0.27J	3	0.11J-0.21J	4	0.064J-1.2J	1	0.15J	3	0.056J-1.1J	2	0.099J-0.1J	ND	-	100/3,000	RMEG
2-Methylnaphthalene	7	0.061J-0.64	6	0.097J-45.0J	9	0.07J-34.0	2	0.2-2.1	1	0.6J	2	0.17J-0.19J	1	0.46J	NONE	-
Dibenzofuran	3	0.07J-0.17J	4	0.065J-1.1J	1	0.85J	2	0.044J-0.83J	1	0.83J	3	0.071J-0.1J	ND	-	NONE	-
Fluorene	3	0.11J-0.37J	3	0.12J-2.5J	3	0.081J-1.4J	ND	-	2	0.081J-1.4J	2	0.096J-0.13J	ND	-	80/2,000	RMEG
Phenanthrene	14	0.077J-2.9J	6	0.13J-3.9	10	0.19J-9.2	4	0.41-2.6	4	0.69-7.3	12	0.13J-1.8J	6	0.4J-12.0	200/5,000	RMEG
Di-n-butyl phthalate	ND	-	NT	-	3	0.043J-0.44J	1	0.42J	1	0.28J	ND	-	ND	-	NONE	-
Benzo(a)anthracene	8	0.21J-5.0	3	0.17J-0.34J	4	0.077J-4.9	2	0.2J-1.8J	4	0.42-2.7	9	0.32J-1.3J	6	0.45J-3.8	N0NE	-
Chrysene	13	0.072J-5.7	2	0.23J-0.48	8	0.098J-4.3	3	0.22J-1.8J	4	0.35J-2.8	12	0.41J-1.8J	6	0.64-3.2	NONE	-
Benzo(b)Fluoranthene	6	0.2J-5.5	2	0.18J-0.31J	4	0.32J-6.2J	2	0.12J-3.3	4	0.54-4.7	11	0.45J-1.8J	6	0.74-2.8	NONE	-
Benzo(k)Fluoranthene	6	0.16J-3.9	2	0.11J-0.23J	2	0.16J-3.9J	1	0.18J	1	0.2J	10	0.28J-1.3J	6	0.84-2.1	NONE	-
Benzo(a)Pyrene	5	0.098J-4.5	3	0.15J-0.32J	1	4.4J	1	1.7J	4	0.35J-2.3	11	0.26-1.6	6	0.61-2.7	0.1	CREG
Indeno(1,2,3-cd)Pyrene	5	0.56-3.2	1	0.81J	NT	-	1	0.18J	2	0.26J-0.28J	11	0.23J-1.5J	6	0.54-1.7	NONE	-
Benzo(g,h,i)Perylene	5	0.21J-2.6	2	0.082J-0.17	NT	-	ND	-	1	0.26J	11	0.21J-1.6	6	0.52-1.5	NONE	-
Aroclor-1242	ND	-	ND	-	17	0.065-12.0	ND	-	ND	-	ND	-	ND	-	0.01/3	RMEG (1016)
Aroclor-1248	ND	-	ND	-	2	0.64-5.5	ND	-	ND	-	ND	-	ND	-	0.01/3	RMEG (1016)
Aroclor-1254	ND	-	ND	-	9	0.26-9.3	ND	-	ND	-	ND	-	ND	-	0.04/1	RMEG
Aroclor-1260	ND	-	ND	-	8	0.083-1.3	ND	-	ND	-	ND	-	ND	-	0.01/3	RMEG (1016)

ppm = parts per million
* = values are for pica child/child.
ND = not detected
J = estimated value
- = not applicable
NT = not tested or sample was unusable

Table 6.
LENZ OIL INORGANIC ON-SITE SOIL CONTAMINANTS (in ppm).
Detected Contaminant	Figure 4-5A Phase I Shallow Bores Table 4-16	Figure 4-5B Phase I Shallow Bores Table 4-16	Figure 4-5C Phase I Deep Bores Table 4-18	Figure 4-5D Phase II Shallow Bores Table 4-19	Figure 4-5E Phase II Deep Bores Table 4-19	Figure 4-6A Surface Soils Samples Table 4-20	Figure 4-6B North Ditch Sediments Table 4-27	Comparison Values for Children	Source
	n= 17 range	n=10 range	n=13 range	n=21 range	n=16 range	n=12 range	n=6 range
Aluminum	9710J-20400	9490J-50,000J	1230-23,400J	3,610-21,200	951-16,800	2180-18,800	6540-36,100	NONE
Antimony	5N 12R	17.3J one N 8R	63.5J 4N 8R	21-Ns	16N	8.5-44.5	1.8-11.3 4-Ns	20	RMEG
Arsenic	3.2J-12.1J	1.1J-19.0J	9.7J-87.4J	2.6-14.4J	4.2-13.2J	4.7J-79.6	4.7J-18.4J	0.5	CREG
Barium	57.4J-1280	59.1J-3060J	6.6J-412	46.3J-882.0J	70.1-493J	14.2-512.0	73.3-136	4,000	RMEG
Cadmium	1.0J-2.6J	1.4J-2.0J	0.97J-1.3J	1.7-1.9	3.8 15-Ns	12R	6R	40	CEMEG
Chromium (total)	31.8J-96.9J	31.3J-65.2J	6.1J-54.9J	7.9-40.5J	4.1-98.1J	1.3-158	33.8-60.8	300	RMEG
Cobalt	11.9-22.8	5.1-21.6	6.8-28.4	21R	14.6 15R	10.4-31.2	12.2-32.2	NONE	-
Copper	18.9-670J	7.0J-234J	3.0J-167J	12.0-268.0J	8J-120J	54.5J-546J	69.1-154J	NONE	-
Iron	16300J-38400J	17,800-57,200	11,900-53,000	8,750-27,600	6,650J-113,000J	4,230J-33,400J	13400J-30100J	NONE	-
Lead	87.3J-909J	102J-685J	4.0-561J	13.1-714.0	8.2J-498	75.5J-620J	65.6J-320J	NONE	-
Manganese	266-1590J	352-683J	270-691J	233J-1,110J	117J-445J	123J-1,130J	612J-816J	7,000	RMEG
Mercury	0.09-0.5J	0.13	0.08J-0.25J	0.12-0.79	0.11-0.38	0.11-0.42	0.2-0.26J	NONE	-
Nickel	9.5J-47.5	26.2-28.7J	17.5-34.5	9.7-34.2	10.1-34.7	4.8-69.3	6.6-32.9	1,000	RMEG
Selenium	0.55J-0.73J	1.8J	0.25J-2.8J	NT	NT	0.61J-1.5J	3.2-5.7J	100	CEMEG
Vanadium	20.0-43.4	21.9-77.7	4.6-94.2	11.2-38.4	11.5-27.8	22.2-35.1	22.3-28.9	200	IEMEG
Zinc	61.9-639	62.2J-491J	12.5J-308	34.9-376	16.5-490J	29.7J-654J	116J-284J	20,000	RMEG
Cyanide	0.33-7.7	0.6-7.7	1.7-12.0	NT	8.3J	0.22J-0.73J	0.46J	1,000	RMEG

ppm = parts per million
J = estimated value
N = nondetected value
R = analyses was rejected
- = not applicable
NT = not tested or sample was not usable

Table 7.
LENZ OIL INORGANIC SURFACE WATER (NORTH DRAINAGE DITCH) CONTAMINANTS (in ppb).
Contaminant (Laboratory Detection Limits)	Sample Values			Drinking Water Comparison Values
Contaminant (Laboratory Detection Limits)	Detected Values	# of Nondetects	# of Rejects	Value	Source
Aluminum	2890.0 8610.0 8850.0 24700.0 36100.0	0	1	NONE	-
Antimony (31.0)	0	6	0	4	Child RMEG
Arsenic (8.0)	0	6	0	3	Child CEMEG
Barium	241.0 991.0	0	4	700	Child RMEG
Beryllium (1.0)	0	4	2	4	MCL
Cadmium (1.0)	20.0	5	0	5	Child RMEG
Chromium (2.0)	12.2 14.8 41.0 73.6	1	1	2	CLHA
Cobalt (3.0)	0	1	5	NONE	-
Copper (6.4)	30.9 48.4 79.0 208.0	1	1	1300	MCL*
Lead (2.0)	2.1J 2.2J	4	0	15	MCL*
Manganese	123.0 352.0 407.0 700.0 2160.0 9290.0	0	0	50	Child RMEG
Mercury (0.2)	0	6	0	NONE	-
Nickel	45.1 94.9	0	4	100	MCL
Selenium (3.0)	0	6	0	20	Child CEMEG
Silver (5.0)	0	5	1	50	Child RMEG
Thallium (5.0)	0	6	0	2	MCL
Vanadium (3.0)	67.5	1	4	30	Child IEMEG
Zinc	21.2 93.4 163.0 170.0 432.0 2460.0	0	0	2000	LTHA
Cyanide (10.0)	0	6	0	2	CLHA

ppb = Parts per billion (or micrograms per liter).
CHLA = Child Longer Term Health Advisory for drinking water (EPA).
MCL* = USEPA drinking water "action level" for public water supplies.
J = Estimated value.
- =not applicable

Table 8.
LENZ OIL ORGANIC CONTAMINANTS OF CONCERN.
CONTAMINANT	NONAQUEOUS LAYER	MONITORING WELLS							SOIL	SAMPLES FROM NORTH DRAINAGE DITCH
		Shallow		Intermediate		Deep			Borings	SAMPLES FROM NORTH DRAINAGE DITCH
		On-Site	Off-Site	On-Site	Off-Site	Background	On-Site	Off-Site	On-Site	Surface Water	Surface Soil	Sediments
Benzene		X					X		15B
Toluene	X						B		30B		B
Ethylbenzene	XX								25B		B
Xylenes	XX								25B		B
Chloroethane		D	D		D		D
Vinyl chloride			X		X
1,1-Dichloroethane		DDDD	D	D	D				9D
1,2-Dichloroethane*		X							BBB
1,1-Dichloroethene		X	X		X	X		X
Trichloroethene*		B	X		X				15B		B
1,1,1-Trichloroethane*			B		B	B		B	33D
Carbon tetrachloride						X		X
Tetrachloroethene			XX			X		X	21B		B
Naphthalene	XX	XX							18D
2-Methylnaphthalene	DD	DD							27D			D
Anthracene									30B			5B
Benzo(a)anthracene									30D			6D
Chrysene									42D			6D
Benzo(b)fluoranthene									20D			6D
Benzo(k)fluoranthene									22D			6D
Benzo(a)pyrene									25X			6X
Indeno(1,2,3-cd)pyrene									20D			6D
Benzo(g,h,i)perylene									20D
Fluorene	XX	BX							13D
Dibenzofuran		D							14D
Phenanthrene	DD	DDD							56D			6D
Acenaphthene	X	B							17D
2,4-Dinitrotoluene	X
Di-n-Butylphthalate		D	D			D	D	D	5D
Aroclor-1242	XX	XX
Aroclor-1248									3X
Aroclor-1254									10X
Aroclor-1260	XX	XX

KEY: X=ABOVE ENVIRONMENTAL MEDIA GUIDELINE
D=DETECTED BUT NO GUIDELINE ESTABLISHED
B=DETECTED BUT BELOW GUIDELINE
MULTIPLE DETECTIONS DEPICTED BY MULTIPLE LETTERS OR NUMBER PRECEDING LETTER
BLANK=NOT DETECTED
*=DETECTED IN SOIL GAS SURVEY

Table 9.
LENZ OIL INORGANIC CONTAMINANTS OF CONCERN.
Contaminant	Nonaqueous Layer 2 samples	MONITORING WELLS					SOIL	SAMPLES FROM NORTH DRAINAGE DITCH
		Shallow		Intermediate	Deep		77 Borings	SAMPLES FROM NORTH DRAINAGE DITCH
		6 On-Site	3 Off-Site	2 Off-Site	5 On-Site	3 Off-Site	On-Site	12 Surface Soils	6 Sediments	6 Surface Waters
Aluminum	DD	DDDDDD	DDD	2D	5D	DDD	77D	12D	6D	5D,1R
Antimony					1X		1X,1B,47N,28R	1X,2B	2B,4N	6N
Arsenic	XX	XXXXXX	XXX	2X	3X	XXB	67X,10N	10X,2N	3B,3N	6N
Barium	XX	XBBBBB	BBB	2B	5B	BBB	67B,10R	12B	6B	1X,1B,4R
Cadmium	X	B	B				20B,35N,22R	12R	6R	1X,5N
Chromium	XX	XXBBBB	BBB	BB	2B	BB	77B	12B	6B	4X,1N,1R
Cobalt							41D,36R	8D,4N	6D	1N,5R
Copper	X	BBBBBB	BBB	BB	4B	BB	72D,5N	12D	6D	4B,1N,1R
Lead	XX	XXXXXX	XX				77D	12D	6D	2D,4N
Manganese	BB	BBBBBB	BBB	BB	5B	BBB	77B	12B	6B	6X
Mercury		BB	B				26D,51N	5D	4D	6N
Nickel	XX	XBBBBB	BBB	BB	4B	BB	54B,19N,4R	12B	6B	2B,4R
Selenium	XX				X		7B,55N,15R	2B,10N	4B,1N,1R	6N
Vanadium	BB	BBBBBB	BB			B	64B,1N,12R	4B,8N	2B,4N	1X,1N,4R
Zinc	XX	BBBBBB	BB			B	77B	12B	6B	1X,5B
Cyanide							22B,47N,8R	6B,6N	1B,5N	6N

KEY: X=ABOVE COMPARISON VALUE (ENVIRONMENTAL MEDIA GUIDELINE FOR CHILD)
B=DETECTED BUT BELOW GUIDELINE
D=DETECTED BUT NO GUIDELINE ESTABLISHED
N=NOT DETECTED
R=SAMPLE REJECTED
BLANK = NOT TESTED

Table 10.
SUMMARY OF LENZ OIL SOIL GAS INVESTIGATION IN (May 19, 1987).
Contaminant	Highest Concentration (ppm*)
1,1-Dichloroethane	444
Methylene chloride	108
Benzene	33
Xylenes	466
Toluene	690

Total hydrocarbons	9308 mg/m³

Table 11.
SUMMARY OF LENZ OIL OFF-SITE AIR SAMPLING OF VOCs (1987).
Air Monitoring Location
Sampling Date	Downwind 94th & Madison	Upwind Mt.Assisi	Chicago 160 N.LaSalle	Wind Direc- tion/Speed

7/13-14	1.16 ppm¹	1.58 ppm	1.35 ppm	NW 9 mph
7/14-15	1.17	1.05	0.97	W 6 mph
7/15-16	0.78	1.96	0.91	NE 8 mph
7/20-21	1.48	1.82	1.57	W 12 mph
7/21-22	0.97	1.58	1.75	SW 8 mph
7/24-25²	1.03	1.59	1.47	SW 6 mph

Average Concentration	1.10	1.50	1.34

¹ppm = parts per million
²Digging for trial burn, SW wind toward 94th & Madison

Table 12.
USEPA TOXIC CHEMICAL RELEASE INVENTORY (TRI) SUMMARY FOR LENZ OIL HAZARDOUS WASTE SITE (Values reported in estimated pounds released per year).
Chemical Released	Medium	1987	1988	1989	1990	1991
Acetone	Air	6264	9210	10342	13447	6945
Acetone	Land				250
Aluminum oxide	Air	320000	463600
Ammonia	Air	7829	6271	14773	61165	2000
	Water	69080	45787	24445	11315	27000
	Land	250	1728	1074
Benzene	Air	64000	80413	89828	70103	32700
	Water				28	27
	Land	250
1,3-Butadiene	Air	50	41	15	17	1
Butyl acrylate	Air	500	500	500	500	500
Chlorine	Air	3550	250	3727	4300	6600
Chromium compounds	Air	900	265	65	59	38
	Water	680	475	675	514	610
	Land	220	6825	3377
Cobalt compounds	Water	120
Cobalt compounds	Land	250
Cyclohexane	Air	16000	12842	8010	7768	2700
Cyclohexane	Water					5
Dibutyl phthalate	Air	500	500	500	500	500
Dichloromethane	Air			750	750	1000
Ethyl acrylate	Air	500	500	500	500	500
Ethylbenzene	Air	20550	20804	20284	10442	4000
	Water	500	250		51	94
	Land	500
Ethylene	Air	7750	8406	9144	9339	4200
Ethylene glycol	Air		185
Ethylene oxide	Air	132599	97518
Freon	Air	10550	12620	12420
Glycol ethers	Air	500	500	500	500	500
Hydrochloric acid	Air	68700	65500	70000	80120	771453
Hydrochloric acid	Land	2600	2600	2600	2600
Hydrogen fluoride	Air	7700	7825	6800	7826	6700
Hydrogen fluoride	Water	250
Lead compounds	Air	60			51	68
	Water	930	950	784	1028	980
	Land	130	759	374
Methanol	Air	1838	2511	2281	2877	1463
Methylethylketone	Air	4350	4694	6550	6700	8480
Methylmethacrylate	Air	500	500	500	500	1000
Molybdenum trioxide	Water				1285	1200
Naphthalene	Air	18000	8070	7453	3049	1130
	Water				10	10
	Land	250		262
Nickel compounds	Air	1850	750	750	159	210
	Water	580		490	642	610
	Land	250		142
Nitric acid	Air	3850	3670	3650	3650
Nitric acid	Land	390	390	250	250
Phenol	Air	170	11972	3934	1331	1301
	Water	340	361	354	537	340
	Land	250	29	12
Phosphoric acid	Air	1080	841	761	760	250
Propylene	Air	12750	750	8930	9451	3290
Propylene oxide	Air	998	700
Sodium hydroxide	Air	250	250
	Water	16011	16000
	Land	630	630
Sulfuric acid	Air	3420	1868	2300	2055	250
Sulfuric acid	Land	710	710	750	250
Styrene	Air	25336	25165	24265	24051	43255
	Water	250	250	250	250	250
	Land	6600	250		250
Toluene	Air	20900	117619	139101
Trichloroethylene	Air	19869	37466	26134	34000	15000
1,1,1-Trichloroethane	Air	158000	96200	156900	96199	15424
1,1,1-Trichloroethane	Water				24	23
1,2,4-Trimethylbenzene	Air	5500	5486	468	3815	3410
	Water					5
	Land	250
Xylene	Air	73000	82230	65400	34506	15050
Xylene	Water					5
Zinc	Air		500	750	505	505
	Water	250	250	250	10	5
	Land	250

BLANK = NO REPORTED RELEASE TO THAT MEDIUM

Table 13.
Maximum Concentrations of Identified Contaminants Detected in Lenz Oil On-Site Surface and Subsurface Soils Before and After Incineration.
Contaminant	Prior-Highest Concentration (ppm**)	Date	Reference	After-Highest* Concentration (ppm**)
Benzene	8.5	01/23/87	21	0.130
Xylenes	2000.0	01/23/87	21	42
Dimethylbenzene	680	01/23/87	21
Toluene	890.0	01/23/87	21	10
Ethylbenzene	520.0	01/23/87	21	11
Ethylmethylbenzene	220	01/23/87	21
Trimethylbenzene	150	01/23/87	21
1,2-Dichlorobenzene	34.0	01/23/87	21	1.9

Chloroethane	0.21	10/29/85	23
trans-1,2-Dichloroethene	80.0	01/23/87	21	1.1
1,1-Dichloroethane	68.0	10/29/85	23	0.15
Methylene chloride	22.0	01/23/87	21	0.96
1,1,1-Trichloroethane	22.1	10/29/85	23	0.16
Tetrachloroethene	15.3	10/29/85	23	2.8
Trichloroethene	0.005	10/29/85	23	0.91
trans-1,3-Dichloropropene				0.014

Acenaphthalene				1.2
Anthracene				2.2
Fluoranthene	200.0	01/23/87	21	13
Phenanthrene	170.0	01/23/87	21	9.1
Naphthalene	30.0	10/29/85	23	26
Methylnaphthalene	14	01/23/87	21
2-Methylnaphthalene	65.0	10/29/85	23	45
Dimethylnaphthalene	15	01/23/87	21
Trimethylnaphthalene	11	01/23/87	21
Ethylnaphthalene	15	01/23/87	21

Benzo (a) anthracene				4.9
Dibenzofuran				2.4
Fluorene				2.5
Pyrene				12
Polychlorinated Biphenyls	15.0	10/29/85	23
Aroclor-1242				12
Aroclor-1254				9.3
Aroclor-1260				1.3

Table 13 (continued).
Contaminant	Prior-Highest Concentration (ppm**)	Date	Reference	After-Highest* Concentration (ppm**)
Butylbenzylphthalate				3.2
Bis (2-ethylhexyl) phthalate				7.4
Chrysene				5.7
Benzo (b) fluoranthene				6.2
Benzo (K) fluoranthene				3.9
Benzo (a) pyrene				4.5
Benzo (g,h,i) perylene				2.6
Indeno (1,2,3,c,d) pyrene				3.2
Isophorone				3.5
gamma-BHC				0.0075
gamma-Chlordane				0.0024
Aldrin				0.018
DDE				0.053
DDD				0.26
DDT				0.38
Di-n-butylphthalate				0.42
Phenol				5.2
2,4-Dimethylphenol				0.57
Chloroform				0.006
Acetone				1.6
2-Butanone				0.36
Carbon disulfide				0.11

Beryllium				1.0
Cadmium				3.8
Chromium (total)				98.1
Cobalt				28.4
Copper				670
Lead	890.0	1/23/87	21	909
Magnesium				104,000
Zinc				639
------------------------------------------------------------------------------------------------

* = From Feasibility Study Report, November, 1992, ERM-North Central, Inc.
ppm** = parts per million

Table 14.
Lenz Oil Completed Exposure Pathways
PATHWAY NAME	EXPOSURE PATHWAY ELEMENTS
PATHWAY NAME	SOURCE	ENVIRONMENTAL MEDIA	POINT OF EXPOSURE	ROUTE OF EXPOSURE	EXPOSED POPULATIONS	TIME
Site Wastes	Collected Wastes	Contaminated Soil	Daily operations	Inhalation/Direct Contact	Workers	Past
Site Wastes	Collected Wastes	Contaminated Soil	Fugitive dusts and/or fumes onto neighboring properties Tracking of wastes on roads	Inhalation	Downwind residents	Past Present
Groundwater	Surface Waste Contaminated soil	Groundwater	Use of contaminated well water	Ingestion/Inhalation	Residents with downgradient private wells	Past
Groundwater	Surface Waste Contaminated soil	Groundwater	Use of contaminated well water	Inhalation	Residents using wells for nonpotable purposes	Present
Surface Water	Surface wastes Contaminated soil Groundwater discharge	Surface Runoff Surface water	Northern drainageway Des Plaines River	Inhalation/Direct Contact/Ingestion	Individuals using surface water for recreation or drinking water	Past Present Future

Table 15.
Potential Exposure Pathways
PATHWAY NAME	EXPOSURE PATHWAY ELEMENTS
PATHWAY NAME	SOURCE	ENVIRONMENTAL MEDIA	POINT OF EXPOSURE	ROUTE OF EXPOSURE	EXPOSED POPULATIONS	TIME
Groundwater	Surface wastes Nonaqueous layer Contaminated soils Contaminated surface water	Groundwater	New wells Surface water use	Ingestion Inhalation	Residents downgradient or downstream	Future
Groundwater		Indoor air	Indoor air	Ingestion Inhalation	Residents with basements	Future
Sediments	Contaminated soil Surface water Surface runoff Air deposition	Sediment receiving settling contaminants	North drainageway	Ingestion Direct contact	Fishermen Hunters Waders	Past Present Future
Sediments		Sediment receiving settling contaminants	Des Plaines River	Ingestion Direct Contact	Dredging workers Downstream use of water	Future
Soil	Subsurface contamination Nonaqueous layer	Surface and subsurface soil	On-site activities	Inhalation Direct Contact	Workers Trespassers	Present Future