Overview

These are Indiana’s Published Level Table 1 groundwater standards for semi-volatile organic compounds (SVOCs) and polycyclic aromatic hydrocarbons (PAHs), from the IDEM Risk-based Closure Guide (WASTE-0046-R2, “the R2”), effective March 28, 2025.

Risk basis: Indiana’s published levels use a 1E-05 cancer risk (1 in 100,000) and HQ of 1.0 - 10 times less conservative than EPA’s default 1E-06. For carcinogenic SVOCs and PAHs, Indiana’s groundwater values are approximately 10 times higher than default EPA Regional Screening Levels.

Residential values only: IDEM publishes groundwater levels for a single residential scenario; there is no commercial groundwater tier (the R2, Section 3.3).

Qualifier key:

C = Carcinogenic
N = Noncarcinogenic
M = MCL-based
D = Detection limit-based

Blank cells indicate no published level for that chemical - not zero.

Groundwater Published Levels - SVOCs and PAHs

Showing 202 of 202 chemicals

Chemical	CAS Number	Residential (µg/L)	Q
Acenaphthene	83-32-9	500	N
Acetophenone	98-86-2	2,000	N
Acetylaminofluorene, 2-	53-96-3	0.2	C
Aminobiphenyl, 4-	92-67-1	0.03	C
Aminophenol, m-	591-27-5	2,000	N
Aminophenol, o-	95-55-6	80	N
Aminophenol, p-	123-30-8	400	N
Aniline	62-53-3	100	C
Anthracene	120-12-7	2,000	N
Anthraquinone, 9,10-	84-65-1	10	C
Auramine	492-80-8	0.8	C
Azobenzene	103-33-3	1	C
Azodicarbonamide	123-77-3	20,000	N
Benz[a]anthracene	56-55-3	0.3	C
Benzaldehyde	100-52-7	200	C
Benzenethiol	108-98-5	20	N
Benzidine	92-87-5	0.001	C
Benzo[a]pyrene	50-32-8	0.2	M
Benzo[b]fluoranthene	205-99-2	3	C
Benzo[e]pyrene	192-97-2	2	N
Benzo[j]fluoranthene	205-82-3	0.7	C
Benzo[k]fluoranthene	207-08-9	30	C
Benzofluorene, 2,3-	243-17-4	100	N
Benzoic Acid	65-85-0	80,000	N
Benzotrichloride	98-07-7	0.03	C
Benzyl Alcohol	100-51-6	2,000	N
Biphenyl, 1,1'-	92-52-4	0.8	N
Bis(2-ethylhexyl)phthalate	117-81-7	6	M
Bisphenol A	80-05-7	800	N
Bromo-3-fluorobenzene, 1-	1073-06-9	5	N
Bromo-4-fluorobenzene, 1-	460-00-4	5	N
Butyl Benzyl Phthalate	85-68-7	200	C
Chloro-2-methylaniline HCl, 4-	3165-93-3	2	C
Chloro-2-methylaniline, 4-	95-69-2	7	C
Chloroaniline, p-	106-47-8	4	C
Chlorobenzene sulfonic acid, p-	98-66-8	2,000	N
Chlorobenzoic Acid, p-	74-11-3	500	N
Chloronaphthalene, Beta-	91-58-7	800	N
Chloronitrobenzene, o-	88-73-3	2	C
Chloronitrobenzene, p-	100-00-5	10	C
Chlorophenol, 2-	95-57-8	90	N
Chrysene	218-01-9	300	C
Cresol, m-	108-39-4	900	N
Cresol, o-	95-48-7	900	N
Cresol, p-	106-44-5	400	N
Cresol, p-chloro-m-	59-50-7	1,000	N
Cresols	1319-77-3	2,000	N
Cupferron	135-20-6	4	C
Cyclohexane, 1,2,3,4,5-pentabromo-6-chloro-	87-84-3	30	C
Decabromodiphenyl ether, 2,2',3,3',4,4',5,5',6,6'- (BDE-209)	1163-19-5	100	N
Dibenz[a,h]anthracene	53-70-3	0.3	C
Dibenzo[a,e]pyrene	192-65-4	0.07	C
Dibenzofuran	132-64-9	8	N
Dibromobenzene, 1,3-	108-36-1	5	N
Dibromobenzene, 1,4-	106-37-6	100	N
Dibutyl Phthalate	84-74-2	900	N
Dichlorobenzene, 1,2-	95-50-1	600	M
Dichlorobenzene, 1,4-	106-46-7	75	M
Dichlorobenzidine, 3,3'-	91-94-1	1	C
Dichlorophenol, 2,4-	120-83-2	50	N
Diethyl Phthalate	84-66-2	20,000	N
Dihydrosafrole	94-58-6	3	C
Dimethoxybenzidine, 3,3'-	119-90-4	0.2	C
Dimethylamino azobenzene [p-]	60-11-7	0.05	C
Dimethylaniline HCl, 2,4-	21436-96-4	1	C
Dimethylaniline, 2,4-	95-68-1	4	C
Dimethylaniline, N,N-	121-69-7	30	C
Dimethylbenz[a]anthracene, 7,12-	57-97-6	0.001	C
Dimethylbenzidine, 3,3'-	119-93-7	0.02	C
Dimethylformamide	68-12-2	60	N
Dimethylhydrazine, 1,1-	57-14-7	0.004	N
Dimethylhydrazine, 1,2-	540-73-8	0.0003	C
Dimethylphenol, 2,4-	105-67-9	400	N
Dimethylphenol, 2,6-	576-26-1	10	N
Dimethylphenol, 3,4-	95-65-8	20	N
Dimethylterephthalate	120-61-6	2,000	N
Dinitroaniline, 3,5-	618-87-1	8	N
Dinitrobenzene, 1,2-	528-29-0	2	N
Dinitrobenzene, 1,3-	99-65-0	2	N
Dinitrobenzene, 1,4-	100-25-4	2	N
Dinitro-o-cresol, 4,6-	534-52-1	2	N
Dinitro-o-cyclohexyl Phenol, 4,6-	131-89-5	20	N
Dinitrophenol, 2,4-	51-28-5	40	N
Dinitrotoluene Mixture, 2,4/2,6-	E1615210	1	C
Dinitrotoluene, 2,4-	121-14-2	2	C
Dinitrotoluene, 2,6-	606-20-2	0.5	C
Dinitrotoluene, 2-Amino-4,6-	35572-78-2	2	N
Dinitrotoluene, 4-Amino-2,6-	19406-51-0	2	N
Dinitrotoluene, Technical grade	25321-14-6	1	C
Dioxins: Hexachlorodibenzo-p-dioxin, Mixture	34465-46-8	0.0001	C
Dioxins: TCDD, 2,3,7,8-	1746-01-6	0.00003	M
Diphenyl Ether	101-84-8	0.8	N
Diphenyl Sulfone	127-63-9	20	N
Diphenylamine	122-39-4	1,000	N
Diphenylhydrazine, 1,2-	122-66-7	0.8	C
Direct Black 38	1937-37-7	0.1	C
Direct Blue 6	2602-46-2	0.1	C
Direct Brown 95	16071-86-6	0.1	C
Fluoranthene	206-44-0	800	N
Fluorene	86-73-7	300	N
Furan	110-00-9	20	N
Hexabromobenzene	87-82-1	40	N
Hexabromodiphenyl ether, 2,2',4,4',5,5'- (BDE-153)	68631-49-2	4	N
Hexachlorobenzene	118-74-1	1	M
Hexachlorobutadiene	87-68-3	1	C
Hexachlorocyclohexane, Alpha-	319-84-6	0.07	C
Hexachlorocyclohexane, Beta-	319-85-7	0.3	C
Hexachlorocyclohexane, Delta-	319-86-8	0.0007	N
Hexachlorocyclohexane, Technical	608-73-1	0.3	C
Hexachlorocyclopentadiene	77-47-4	50	M
Hexachloroethane	67-72-1	3	C
Hexachlorophene	70-30-4	6	N
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)	121-82-4	10	C
Hexamethylene Diisocyanate, 1,6-	822-06-0	0.02	N
Hexanedioic Acid	124-04-9	40,000	N
Hydroquinone	123-31-9	10	C
Indeno[1,2,3-cd]pyrene	193-39-5	3	C
Isophorone	78-59-1	800	C
Lewisite	541-25-3	0.09	N
Maleic Anhydride	108-31-6	2,000	N
Maleic Hydrazide	123-33-1	10,000	N
Mercaptobenzothiazole, 2-	149-30-4	60	C
Methoxy-5-nitroaniline, 2-	99-59-2	20	C
Methyl-5-Nitroaniline, 2-	99-55-8	80	C
Methylaniline Hydrochloride, 2-	636-21-5	6	C
Methylene-bis(2-chloroaniline), 4,4'-	101-14-4	2	C
Methylene-bis(N,N-dimethyl) Aniline, 4,4'-	101-61-1	7	C
Methylnaphthalene, 1-	90-12-0	0.06	D
Methylnaphthalene, 2-	91-57-6	40	N
Monomethylaniline	100-61-8	40	N
N,N'-Diphenyl-1,4-benzenediamine	74-31-7	4	N
Naphtha, High Flash Aromatic (HFAN)	64742-95-6	200	N
Naphthalene	91-20-3	1	C
Naphthylamine, 2-	91-59-8	0.4	C
Nitroaniline, 2-	88-74-4	200	N
Nitroaniline, 4-	100-01-6	40	C
Nitrobenzene	98-95-3	1	C
Nitrocellulose	9004-70-0	60,000,000	N
Nitrofurantoin	67-20-9	1,000	N
Nitroglycerin	55-63-0	2	N
Nitropyrene, 4-	57835-92-4	0.2	C
Nitrosodiethanolamine, N-	1116-54-7	0.3	C
Nitrosodiethylamine, N-	55-18-5	0.002	C
Nitrosodimethylamine, N-	62-75-9	0.001	C
Nitrosodiphenylamine, N-	86-30-6	100	C
Nitrosomorpholine [N-]	59-89-2	0.1	C
Nitrosopiperidine [N-]	100-75-4	0.08	C
Nitrosopyrrolidine, N-	930-55-2	0.4	C
Nitrotoluene, m-	99-08-1	2	N
Nitrotoluene, o-	88-72-2	3	C
Nitrotoluene, p-	99-99-0	40	C
Octabromodiphenyl Ether	32536-52-0	60	N
Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX)	2691-41-0	1,000	N
Octyl Phthalate, di-N-	117-84-0	200	N
Pentabromodiphenyl Ether	32534-81-9	40	N
Pentabromodiphenyl ether, 2,2',4,4',5- (BDE-99)	60348-60-9	2	N
Pentachlorobenzene	608-93-5	3	N
Pentachloronitrobenzene	82-68-8	1	C
Pentachlorophenol	87-86-5	1	M
Perylene	198-55-0	2	N
Phenacetin	62-44-2	300	C
Phenol	108-95-2	6,000	N
Phenol, 2-(1-methylethoxy)-, methylcarbamate	114-26-1	80	N
Phenothiazine	92-84-2	4	N
Phenylenediamine, m-	108-45-2	100	N
Phenylenediamine, o-	95-54-5	2	C
Phenylenediamine, p-	106-50-3	20	N
Phenylphenol, 2-	90-43-7	300	C
Phthalic Acid, p-	100-21-0	9,000	N
Phthalic Anhydride	85-44-9	40,000	N
Picramic Acid (2-Amino-4,6-dinitrophenol)	96-91-3	2	N
Picric Acid (2,4,6-Trinitrophenol)	88-89-1	40	N
Polybrominated Biphenyls	36355-01-8	0.03	C
Pyrene	129-00-0	100	N
Pyridine	110-86-1	20	N
Quinoline	91-22-5	0.2	C
Safrole	94-59-7	1	C
Sulfonylbis(4-chlorobenzene), 1,1'-	80-07-9	10	N
Tetrabromodiphenyl ether, 2,2',4,4'- (BDE-47)	5436-43-1	2	N
Tetrachlorobenzene, 1,2,4,5-	95-94-3	0.2	N
Tetrachlorophenol, 2,3,4,6-	58-90-2	200	N
Tetrahydrofuran	109-99-9	3,000	N
Thiodiglycol	111-48-8	1,000	N
Toluene-2,6-diisocyanate	91-08-7	0.02	N
Toluenediamine, 2,3-	2687-25-4	2	N
Toluenediamine, 2,5-	95-70-5	4	N
Toluenediamine, 3,4-	496-72-0	2	N
Toluic Acid, p-	99-94-5	90	N
Toluidine, o- (Methylaniline, 2-)	95-53-4	50	C
Toluidine, p-	106-49-0	30	C
Triacetin	102-76-1	2,000,000	N
Tribromobenzene, 1,2,4-	615-54-3	50	N
Tribromophenol, 2,4,6-	118-79-6	100	N
Trichloroaniline HCl, 2,4,6-	33663-50-2	30	C
Trichloroaniline, 2,4,6-	634-93-5	0.4	N
Trichlorobenzene, 1,2,3-	87-61-6	7	N
Trichlorobenzene, 1,2,4-	120-82-1	70	M
Trichlorophenol, 2,4,5-	95-95-4	1,000	N
Trichlorophenol, 2,4,6-	88-06-2	10	N
Trinitrobenzene, 1,3,5-	99-35-4	600	N
Trinitrotoluene, 2,4,6-	118-96-7	10	N
Urethane	51-79-6	0.3	C

Practical Notes

PAHs in groundwater are common at manufactured gas plant (MGP) sites, coal tar impacted properties, and sites with weathered petroleum contamination. Because many PAHs have very low aqueous solubility, dissolved-phase concentrations in groundwater may be low even when soil concentrations are elevated. PAH groundwater detections above published levels are often found near NAPL source zones.

Naphthalene is the most soluble and mobile PAH and typically has the highest dissolved-phase concentrations in groundwater at petroleum or coal tar sites. It is frequently the groundwater risk driver among the PAH group.

Phthalates (especially DEHP) can be laboratory contaminants introduced through sample containers or processing equipment. Confirm with your laboratory that phthalate detections in groundwater represent real site contamination before comparing to published levels.

Soil relationship: SVOCs in soil can leach to groundwater, particularly at high concentrations or on permeable, low-organic-matter soils. Compare soil results to Indiana Soil - SVOCs and PAHs and groundwater results to this page as part of a complete pathway evaluation.