APL Result Retrieval System - NJDEP Interim Specific Ground Water Quality Criteria

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Friday, May 09, 2008

NJDEP Interim Specific & Generic Ground Water Quality Criteria

The Ground Water Quality Standards (GWQS) (N.J.A.C. 7:9-6) identify ground water classification areas and specify the quality criteria and designated uses for ground water in each of these areas. The criteria are numerical values assigned to each constituent. There are three types of criteria:

"specific criteria" (the constituent criteria listed in Table 1 of the GWQS);

"interim specific criteria" (derived using methodologies contained in the GWQS); or

"interim generic criteria" (as listed for Synthetic Organic Compounds in
Table 2 of the GWQS).

Where a specific criterion is not listed for a constituent in Table 1 of the GWQS, the Department may establish interim specific criteria for Class II-A ground water based upon the weight of evidence available regarding each constituent’s carcinogenicity, toxicity, public welfare or organoleptic effects, as appropriate, for the protection of the potable water use. In addition, where the Department believes that the existing specific criteria found in Table 1 are no longer appropriate in light of current scientific information, the Department may develop new interim specific criteria.

Interim specific criteria may be derived by the Department for any constituent, in accordance with the methodologies or risk assessment approach discussed in N.J.A.C. 7:9-6.7(c)3, 4 and 5 of the GWQS.

Where no specific or interim specific criterion exists (or published health based information is lacking) for a Synthetic Organic Chemical (SOC), the interim generic criteria for carcinogenic and non-carcinogenic SOCs in Table 2 of the GWQS shall apply until an interim specific criterion has been established.

Interim specific criteria shall be replaced with specific criteria as soon as reasonably possible by rule. The Department shall maintain and make available to the public a listing of all interim specific criteria and the supplemental information used in their derivation. This list will be updated periodically to reflect any changes in the interim specific criteria based on more current or up-to-date scientific information.

For further information on interim criteria, please contact Brenda Jogan, GWQS Team Leader at (609) 633-7020.

Interim Ground Water Quality Criteria (in parts per billion, ppb)

Constituent	CASRN	Interim G.W. Criteria (ppb)	Type	PQLs (ppb)	Higher of PQL and Interim Criteria (ppb)
Acetophenone	98-86-2	1000	IS	10	1000
Acrolein	107-02-8	10	IS	5	10
Adipates (Di(ethylhexyl)adipate) (DEHA)	103-23-1	400	IS	3	400
Ammonia	7664-41-7	50	IS	200	200
Amyl acetate	628-63-7	100	IGNC	5	100
Aniline	62-53-3	6	IS	2	6
Benzo(a)anthracene	56-55-3	0.05	IS	0.2	0.2
Benzo(a)pyrene (BaP)	50-32-8	0.005	IS	0.2	0.2
Benzo(b)fluoranthene (3,4-Benzofluoranthene)	205-99-2	0.05	IS	10	10
Benzo(ghi)perylene	191-24-2	100	IGNC	0.3	100
Benzo(k)fluoranthene	207-08-9	0.5	IS	1	1
Benzoic Acid	65-85-0	30000	IS	50	30000
Biphenyl (Diphenyl) (1,1-biphenyl)	92-52-4	400	IS	10	400
Bis(2-chloroethoxy) methane	111-91-1	100	IGNC	10	100
Butane	106-97-8	100	IGNC	0.5	100
Butylated Hydroxytoluene (BHT)	128-37-0	100	IGNC	10	100
Carbon Disulfide	75-15-0	800	IS	10	800
4-Chloroaniline (P-Chloroaniline)	106-47-8	30	IS	10	30
Chlorobenzene	108-90-7	50	ISM	1	50
Chloroethane	75-00-3	100	IGNC	0.5	100
2-Chloroethyl Vinyl Ether	110-75-8	100	IGNC	10	100
4-Chloro-3-methylphenol (3-Methyl-4-chlorophenol)	59-50-7	100	IGNC	20	100
2-Chloronaphthalene	91-58-7	600	IS	10	600
4-Chlorophenyl Phenyl Ether	7005-72-3	100	IGNC	10	100
Chrysene	218-01-9	5	IS	0.2	5
Cobalt	7440-48-4	100	IGNC	35	100
Cumene (isopropyl benzene)	98-82-8	800	IS	0.8	800
Cyclohexane	110-82-7	100	IGNC	5	100
Cyclopentene	142-29-0	100	IGNC	5	100
Delta-benzenehydrochloride (dBHC)	319-86-8	100	IGNC	0.03	100
Dibenzo(a,h)anthracene	53-70-3	0.005	IS	0.5	0.5
Dibenzofuran	132-64-9	100	IGNC	10	100
1,2-Dibromo-3-chloropropane (DBCP)	96-12-8	0.03	IS	1	1
1,1-Dichloroethane (1,1-DCA)	75-34-3	50	ISM	1	50
1,2-Dichloroethylene (cis)	156-59-2	70	ISM	2	70
1,3-Dichloropropane	142-28-9	100	IGNC	2	100
1,2-Diethylbenzene	135-01-3	100	IGNC	5	100
Diisodecyl phthalate (DIDP)	26761-40-0	100	IS	3	100
Diisopropyl ether (DIPE)	108-20-3	20000	IS	5	20000
4,6-Dinitro-O-Cresol (2-Methyl-4,6-Dinitrophenol)	534-52-1	100	IGNC	20	100
Diphenylamine	122-39-4	200	IS	20	200
Diphenyl oxide (ether)	101-84-8	100	IS	10	100
Ethane	74-84-0	100	IGNC	0.5	100
Ethion	563-12-2	4	IS	0.5	4
Ethyl acetate	141-78-6	6000	IS	10	6000
Ethylene glycol	107-21-1	300	IS	200	300
Ethylene glycol monomethyl ether	109-86-4	7	IS	20000	20000
Ethyl ether	60-29-7	1000	IS	50	1000
1-Ethyl-3-methyl benzene (3-Ethyltoluene)	620-14-4	100	IGNC	10	100
Formaldehyde	50-00-0	100	IS	30	100
Freon 11 (Trichloromonofluoromethane)	75-69-4	2000	IS	10	2000
Freon 12 (Dichlorodifluromethane)	75-71-8	1000	IS	0.5	1000
Hexane (n-Hexane)	110-54-3	30	IS	5	30
2-Hexanone	591-78-6	100	IGNC	2	100
Indeno (1,2,3-cd)pyrene	193-39-5	0.05	IS	10	10
Isopar G (heavy naptha) C16-C18 RANGE, GC/FID FINGERPRINT	8001-60-3	100	IGNC	100	100
Isopropanol	67-63-0	100	IGNC	200	200
Isopropyl acetate	108-21-4	100	IGNC	10	100
Methanol	67-56-1	4000	IS	50000	50000
Methyl acetate	79-20-9	7000	IS	5000	7000
2-Methylbutane	78-78-4	100	IGNC	0.5	100
Methylene chloride	75-09-2	3	ISM	2	3
2-Methylnapthalene	91-57-6	100	IGNC	10	100
Methyl salicylate	119-36-3	4000	IS	50	4000
Methyl Tert. Butyl Ether (MTBE)	1634-04-4	70	ISM	1	70
Molybdenum	7439-98-7	30	IS	10	30
Molybdenum trioxide	1313-27-5	100	IGNC	10	100
Naphthalene	91-20-3	300	ISM	2	300
N-butanol (n-butyl alcohol)	71-36-3	900	IS	20	900
N-butyl acetate	123-86-4	100	IGNC	5	100
N-butyl benzene	104-51-8	100	IGNC	0.6	100
N-decane	124-18-5	100	IGNC	10	100
2-Nitrophenol	88-75-5	100	IGNC	20	100
4-Nitrophenol	100-02-7	100	IGNC	50	100
N-nonane	111-84-2	100	IGNC	0.5	100
N-Propyl benzene	103-65-1	100	IGNC	0.2	100
Parathion	56-38-2	4	IS	0.08	4
Pentane	109-66-0	100	IGNC	10	100
Phenanthrene	85-01-8	100	IGNC	0.4	100
P-isopropyl toluene	99-87-6	100	IGNC	0.6	100
Polybrominated biphenyls (PBBs)	67774-32-7	0.004	IS	0.001	0.004
Propane	74-98-6	100	IGNC	0.5	100
Salicylic acid	69-72-7	80	IS	25	80
Silver	7440-22-4	30	IS	10	30
Sulfolane	126-33-0	100	IGNC	10	100
Tertiary butyl alcohol (TBA)	75-65-0	100	IS	100	100
1,1,2,2-Tetrachloroethane	79-34-5	1	ISM	1	1
Tetrahydrofuran	109-99-9	10	IS	20	20
Tetrahydrothiophene	110-01-0	100	IGNC	10	100
1,2,3,4-Tetramethylbenzene	488-23-3	100	IGNC	10	100
1,2,3-Trichloropropane	96-18-4	0.005	IS	2	2
1,2,3-Trimethylbenzene	526-73-8	100	IGNC	2	100
1,2,4-Trimethylbenzene	95-63-6	100	IGNC	0.7	100
1,3,5-Trimethylbenzene	108-67-8	100	IGNC	0.3	100
Vanadium Pentaoxide	1314-62-1	60	IS	20	60
Vinyl Acetate	108-05-4	7000	IS	5	7000
Xylenes (Total)	1330-20-7	1000	ISM	2	1000

Type of Criteria

(IS) = Interim Specific Criteria based on the methodologies and risk assessment approach contained in the GWQS.

(ISM) = An Interim Specific Criteria (see above), but expressly indicated to ensure consistency with Safe Drinking Water Act Maximum Contaminant Level (MCL); may differ from specific criteria in the GWQS.

(IGC) = Interim Generic Criteria for synthetic organic chemicals (SOC) with evidence of carcinogenicity; 5 ppb

(IGNC) = Interim Generic Criteria for SOCs lacking evidence of carcinogenicity; 100 ppb

Practical quantitation level (PQL) means the lowest concentration of a constituent that can be reliably achieved among laboratories within specified limits of precision and accuracy during routine laboratory operating conditions. "Specified limits of precision and accuracy" are the criteria which have been included in applicable regulations including, but not limited to, those regulations listed at N.J.A.C. 7:9-6.9 or are listed in the calibration specifications or quality control specifications of an analytical method.

The higher of the PQLs and interim criteria is the numerical standard to be applied for each constituent in Class II-A aquifers (N.J.A.C. 7:9-6.9(c)).

Last Update: 01/30/02

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