Pennsylvania Code › Title 25 - ENVIRONMENTAL PROTECTION › Part I - Department of Environmental Protection › Subpart C - Protection of Natural Resources › Article II - Water Resources › Chapter 93 - WATER QUALITY STANDARDS › WATER QUALITY CRITERIA › Section 93.8c - Human health and aquatic life criteria for toxic substances

Current through Register Vol. 54, No. 28, July 13, 2024
(a) Table 5 and the table of site-specific
						criteria maintained by the Department list the aquatic life and human health
						criteria for toxic substances which the Department uses in development of
						effluent limitations in NPDES Permits and for other purposes. The human health
						criteria, which include probable modes of exposure (such as, but not limited to
						ingestion from drinking water and fish consumption, inhalation and dermal
						absorption), are further defined as to the specific effect (that is, cancer or
						threshold health effects). For those aquatic life criteria which are a function
						of local water quality conditions and are specified as a formula, such as
						several of the heavy metals, the values used for the local water quality
						condition to derive the appropriate water quality criteria shall be determined
						by instream measurements or best estimates based on reference waters that are
						representative of the median concentrations or conditions of the receiving
						water for the applicable time period and design conditions. Instream
						measurements for the water quality condition will be gathered using Department
						data collection protocols. The priority pollutants are a set of specific
						chemical pollutants regulated by EPA. The priority pollutant numbers (PP NO)
						used by the EPA to identify priority pollutants are included in Table 5 for
						reference purposes. The toxics without a PP NO are nonpriority pollutants or
						State-derived criteria.
(b) Some of
						these criteria may be superseded for the Delaware Estuary, Ohio River Basin,
						Lake Erie Basin, and Genesee River Basin under interstate and international
						compact agreements with the Delaware River Basin Commission, Ohio River Valley
						Sanitation Commission and International Joint Commission, respectively. Water
						quality criteria for the Great Lakes System are contained in §
												93.8e (relating to special
						criteria for the Great Lakes System) and Table 6 (relating to Great Lakes
						Aquatic Life and Human Health Criteria). Criteria in Table 5 may apply to the
						Great Lakes System for those substances not listed in Table 6. Criteria may be
						developed for the Great Lakes System for substances other than those listed in
						Tables 5 and 6, under the methodologies in §
												16.61 (relating to special
						provisions for the Great Lakes system).
TABLE 5
WATER QUALITY CRITERIA FOR TOXIC
						  SUBSTANCES
pp NO
Chemical Name
CAS Number
Fish and Aquatic Life
								  Criteria
Criteria Continuous Concentrations
								  (uglL)
Criteria Maximum Concentration
								  (uglL)
Human Health Criteria
								  (uglL)
1M
ANTIMONY
07440360
220
1100
5.6 [DAGGER]
H
2M
ARSENIC
07440382
150(As3+)
340 (As3+)
10
H
3M
BERYLLIUM
07440417
N/A
N/A
N/A
-
4M
CADMIUM
07440439
*{1.101672-(lnx0.041838)}x
*{1.136672-(lnx0.041838)} x
N/A
Exp(0.7409xln-4.719)
Exp(1.0166xln-3.924)
-
(ex: @H=100, CCC=0.25)
(ex: @H=100, CMC=2.0)
5M
CHROMIUM III
16065831
*0.860xExp(0.819xln+0.6848)
*0.316xExp(0.819xln+3.7256)
N/A
-
(ex: @H=100, CCC=74)
(ex: @H=100, CMC=570)
5M
CHROMIUM VI
18540299
*11
*16
N/A
-
6M
COPPER
07440508
*0.960xExp(0.8545xln-1.702)
*0.960xExp(0.9422xln-1.700)
N/A
-
(ex: @H=100, CCC=9.0)
(ex: @H=100, CMC=13)
7M
LEAD
07439921
*{1.46203-(ln x0.145712)} x
*{1.46203-(lnx0.145712)} x
N/A
-
Exp(1.273xln-4.705)
Exp(1.273xln-1.460)
(ex: @H=100, CCC=2.5)
(ex: @H=100, CMC=65)
8M
MERCURY
07439976
*0.77 (Hg2+)
*1.4 (Hg2+)
0.05
H
9M
NICKEL
07440020
*0.997xExp(0.846xln+0.0584)
*0.998xExp(0.846xln+2.255)
610 [DAGGER]
H
(ex: @H=100, CCC=52)
(ex: @H=100, CMC=470)
10M
SELENIUM
07782492
*4.6
N/A
N/A
-
11M
SILVER
07440224
N/A
*0.850xExp(1.72xln-6.590)
N/A
-
(ex: @H=100, CMC=3.2)
12M
THALLIUM
07440280
13
65
0.24 [DAGGER]
H
13M
ZINC
07440666
*0.986xExp(0.8473xln+0.884)
*0.978xExp(0.8473xln+0.884)
N/A
-
(ex: @H=100, CCC=120)
(ex: @H=100, CMC=120)
14M
CYANIDE, FREE
00057125
5.2
22
4
H
1A
2-CHLOROPHENOL
00095578
110
560
30
H
2A
2,4-DICHLOROPHENOL
00120832
340
1700
10
H
3A
2,4-DIMETHYLPHENOL
00105679
130
660
100
H
4A
4,6-DINITRO-o-CRESOL (2 METHYL-4,6-DINITROPHENOL)
00534521
16
80
2
H
5A
2,4-DINITROPHENOL
00051285
130
660
10
H
E
DINITROPHENOLS
25550587
N/A
N/A
10
H
6A
2-NITROPHENOL
00088755
1600
8000
N/A
-
7A
4-NITROPHENOL
00100027
470
2300
N/A
-
8A
P-CHLORO-m-CRESOL (3 METHYL-4-CHLOROPHENOL)
00059507
30
160
500
H
9A
PENTACHLOROPHENOL
00087865
Exp(1.005x-5.134)
Exp(1.005x-4.869)
0.03
CRL
@pH= 6.5 7.8 9.0
@pH= 6.5 7.8 9.0
Crit= 4.1 15 50
Crit= 5.3 19 65
10A
PHENOL
00108952
N/A
N/A
4000
H
E
2,4,5-TRICHLOROPHENOL
00095954
N/A
N/A
300
H
11A
2,4,6-TRICHLOROPHENOL
00088062
91
460
1.5
CRL
1V
ACROLEIN
00107028
3.0
3.0
3
H
2V
ACRYLONITRILE
00107131
130
650
0.06
CRL
3V
BENZENE
00071432
130
640
0.58
CRL
5V
BROMOFORM
00075252
370
1800
7.0
CRL
6V
CARBON TETRACHLORIDE
00056235
560
2800
0.4
CRL
7V
CHLOROBENZENE
00108907
240
1200
100
H
8V
CHLORODIBR MOMETHANE
00124481
N/A
N/A
0.8
CRL
9V
CHLOROETHANE
00075003
N/A
N/A
N/A
-
10V
2-CHLOROETHYL VINYL ETHER
00110758
3500
18000
N/A
-
11V
CHLOROFORM
00067663
390
1900
5.7
H
12V
DICHLOROBROMOMETHANE
00075274
N/A
N/A
.95
CRL
14V
1,1-DICHLOROETHANE
00075343
N/A
N/A
N/A
-
15V
1,2-DICHLOROETHANE
00107062
3100
15000
9.9
CRL
16V
1,1-DICHLOROETHYLENE
00075354
1500
7500
33.0
H
17V
1,2-DICHLOROPROPANE
00078875
2200
11000
0.90
CRL
18V
1,3-DICHLOROPROPENE
00542756
61
310
0.27
CRL
19V
ETHYLBENZENE
00100414
580
2900
68
H
20V
METHYL BROMIDE
00074839
110
550
100
H
21V
METHYL CHLORIDE
0074873
5500
28000
N/A
-
22V
METHYLENE CHLORIDE
00075092
2400
12000
20
CRL
23V
1,1,2,2-TETRACHLOROETHANE
00079345
210
1000
0.2
CRL
24V
TETRACHLOROETHYLENE
00127184
140
700
10
CRL
25V
TOLUENE
00108883
330
1700
57
H
26V
trans-l,2-DICHLOROETHYLENE
00156605
1400
6800
100
H
D
1,2 cis-DICHLOROETHYLENE
00156592
N/A
N/A
12
H
27V
1,1,1-TRICHLOROETHANE
00071556
610
3000
10000
H
28V
1,1,2-TRICHLOROETHANE
00079005
680
3400
0.55
CRL
29V
TRICHLOROETHYLENE
00079016
450
2300
0.6
CRL
31V
VINYL CHLORIDE
00075014
N/A
N/A
0.02
CRL
IB
ACENAPHTHENE
00083329
17
83
70
H
2B
ACENAPHTHYLENE
00208968
N/A
N/A
N/A
-
3B
ANTHRACENE
00120127
N/A
N/A
300
H
4B
BENZIDINE
00092875
59
300
0.0001
CRL
5B
BENZO(a)-ANTHRACENE
00056553
0.1
0.5
0.001
CRL
6B
BENZO(a)PYRENE
00050328
N/A
N/A
0.0001
CRL
7B
3,4-BENZO-FLUORANTHENE (BENZO(b)FLUORANTHENE)
00205992
N/A
N/A
0.001
CRL
8B
BENZO(ghi)-PERYLENE
00191242
N/A
N/A
N/A
-
9B
BENZO(k)-FLUORANTHENE
00207089
N/A
N/A
0.01
CRL
E
BIS(CHLOROMETHYL)ETHER
00542881
N/A
N/A
0.0002
CRL
10B
BIS(2-CHL0R0ETH0XY)METHANE
00111911
N/A
N/A
N/A
-
11B
BIS(2-CHL0R0ETHYL)ETHER
00111444
6000
30000
0.030
CRL
12B
BIS(2-CHL0R0-1-METHYLETHYL) ETHER
00108601
N/A
N/A
200
H
13B
BIS(2-ETHYLHEXYL)PHTHALATE
00117817
910
4500
0.32
CRL
14B
4-BROMOPHENYL PHENYL ETHER
00101553
54
270
N/A
-
15B
BUTYLBENZYL PHTHALATE
00085687
35
140
0.1
H
16B
2-CHLORONAPHTHALENE
00091587
N/A
N/A
800
H
17B
4-CHLOROPHENYL PHENYL ETHER
07005723
N/A
N/A
N/A
-
18B
CHRYSENE
00218019
N/A
N/A
0.12
CRL
19B
DIBENZO(a,h)ANTHRACENE
00053703
N/A
N/A
0.0001
CRL
20B
1,2-DICHLOROBENZENE
00095501
160
820
1000
H
21B
1,3-DICHLOROBENZENE
00541731
69
350
7
H
22B
1,4-DICHLOROBENZENE
00106467
150
730
300
H
23B
3,3-DICHLOROBENZIDINE
00091941
N/A
N/A
0.05
CRL
24B
DIETHYL PHTHALATE
00084662
800
4000
600
H
25B
DIMETHYL PHTHALATE
00131113
500
2500
2000
H
26B
DI-N-BUTYL PHTHALATE
00084742
21
110
20
H
27B
2,4-DINITROTOLUENE
00121142
320
1600
0.05 for dinitro-toluene
CRL
28B
2,6-DINITROTOLUENE
00606202
200
990
See 27B
CRL
29B
DI-N-OCTYL PHTHALATE
00117840
N/A
N/A
N/A
-
30B
1,2-DIPHENYLHYDRAZINE
00122667
3
15
0.03
CRL
31B
FLUORANTHENE
00206440
40
200
20
H
32B
FLUORENE
00086737
N/A
N/A
50
H
33B
HEXACHLOROBENZENE
00118741
N/A
N/A
0.00008
CRL
34B
HEXACHLOROBUTADIENE
00087683
2
10
0.01
CRL
35B
HEXACHLOROCYCLOPENTADIENE
00077474
i-l
5
4
H
36B
HEXACHLOROETHANE
00067721
12
60
0.1
CRL
37B
INDENO(l,2,3-cd)PYRENE
00193395
N/A
N/A
0.001
CRL
38B
ISOPHORONE
00078591
2100
10000
34
H
39B
NAPHTHALENE
00091203
43
140
N/A
-
40B
NITROBENZENE
00098953
810
4000
10
H
41B
N-NITROSODIMETHYLAMINE
00062759
3400
17000
0.0007 [DAGGER]
CRL
42 B
N-NITROSODI-N-PROPYLAMINE
00621647
N/A
N/A
0.005 [DAGGER]
CRL
43 B
N-NITROSODIPHENYLAMINE
00086306
59
300
3.3 [DAGGER]
CRL
E
PENTACHLOROBENZENE
00608935
N/A
N/A
0.1
H
44B
PHENANTHRENE
00085018
i-l
5
N/A
-
45 B
PYRENE
00129000
N/A
N/A
20
H
E
1,2,4,5-TETRACHLOROBENZENE
00095943
N/A
N/A
0.03
H
46B
1,2,4-TRICHLOROBENZENE
00120821
26
130
0.07
H
1P
ALDRIN
00309002
0.1
3
0.0000008
CRL
2P
alpha-HEXACHLOROCYCLOHEXANE (HCH)
00319846
N/A
N/A
0.0004
CRL
3P
beta-HEXACHLOROCYCLOHEXANE (HCH)
00319857
N/A
N/A
0.008
CRL
4P
gamma-HEXACHLOROCYCLOHEXANE (HCH) (LINDANE)
00058899
N/A
0.95
4.2
H
5P
delta-BHC
00319868
N/A
N/A
N/A
-
6P
CHLORDANE
00057749
0.0043
2.4
0.0003
CRL
E
CHLOROPHENOXY HERBICIDE (2,4-D)
00094757
N/A
N/A
1400
H
E
CHLOROPHENOXY HERBICIDE (2,4,5-TP)
00093721
N/A
N/A
100
H
7P
4,4-DDT
00050293
0.001
1.1
0.00003
CRL
8P
4,4-DDE
00072559
0.001
1.1
0.00002
CRL
9P
4,4-DDD
00072548
0.001
1.1
0.0001
CRL
10P
DIELDRIN
00060571
0.056
0.24
0.000001
CRL
11P
alpha-ENDOSULFAN
00959988
0.056
0.22
20
H
12P
beta-ENDOSULFAN
33213659
0.056
0.22
20
H
13P
ENDOSULFAN SULFATE
01031078
N/A
N/A
20
H
14P
ENDRIN
00072208
0.036
0.086
0.03
H
15P
ENDRIN ALDEHYDE
07421934
N/A
N/A
I
H
16P
HEPTACHLOR
00076448
0.0038
0.52
0.000006
CRL
17P
HEPTACHLOR EPOXIDE
01024573
0.0038
0.5
0.00003
CRL
E
HEXACHLOROCYCLOHEXANE (HCH)-TECHNICAL
00608731
N/A
N/A
0.007
CRL
E
METHOXYCHLOR
00072435
N/A
N/A
0.02
H
18P
PCB
0.014
N/A
0.000064 for PCBs [DAGGER]
CRL
25P
TOXAPHENE
08001352
0.0002
0.73
0.0007
CRL
PP
2, 3, 7, 8-TCDD
01746016
N/A
N/A
5.0 E-9 [DAGGER]
CRL
D
ACETONE
00067641
86000
450000
3500
H
D
ACRYLAMIDE
00079061
N/A
N/A
0.07
CRL
D
ALUMINUM
07429905
N/A
750
N/A
-
D
BARIUM
07440393
4100
21000
2400
H
D
BENZENE METADISULFONIC ACID
00098486
1600000
2600000
N/A
-
D
BENZENE MONOSULFONIC ACID
00098113
1200000
2000000
N/A
-
D
BENZYL CHLORIDE
00100447
N/A
N/A
0.2
CRL
D
BORON
07440428
1600
8100
3100
H
D
2-BUTOXY ETHANOL
00111762
N/A
N/A
700
H
D
COBALT
07440484
19
95
N/A
-
D
p-CRESOL
00106445
160
800
N/A
-
D
CYCLOHEXYLAMINE
00108918
N/A
N/A
1000
H
E
DIAZINON
00333415
0.17
0.17
N/A
-
D
FORMALDEHYDE
00050000
440
2200
700
H
D
2-HEXANONE
00591786
4300
21000
N/A
-
D
LITHIUM
07439932
N/A
N/A
N/A
-
D
METHYL ETHYL KETONE
00078933
32000
230000
21000
H
D
METHYL ISOBUTYL KETONE
00108101
5000
26000
N/A
-
D
METOLACHLOR
51218452
N/A
N/A
69
H
D
NONYLPHENOL
84852153
6.6
28
N/A
-
D
P-PHENOL SULFONIC ACID
00098679
1400000
3500000
N/A
-
D
1-PROPANOL
00071238
46000
230000
N/A
-
D
2-PROPANOL
00067630
89000
440000
N/A
-
D
RESORCINOL
01084603
7200
28000
2700
H
D
STRONTIUM
07440246
N/A
N/A
4000
H
D
1,2,3-TRICHLOROPROPANE
00096184
N/A
N/A
210
H
D
1,2,4-TRIMETHYLBENZENE
00095636
N/A
N/A
72
H
D
1,3,5-TRIMETHYLBENZENE
00108678
N/A
N/A
72
H
D
VANADIUM
07440622
100
510
N/A
-
D
XYLENE
01330207
210
1100
70000
H
Acronyms and Footnotes to Table 5
* Indicates dissolved metal criterion; others are total
						  recoverable metals. Each listed dissolved criterion in Table 5 is equal to the
						  corresponding total recoverable criterion before rounding (from the EPA
						  National Ambient Water Quality Criteria Documents) multiplied by the conversion
						  factor (from the Conversion Factors Table); a criterion that is expressed as a
						  hardness (H)-based equation is shown in Table 5 as the conversion factor
						  (listed) multiplied by the hardness criterion equation; an example criterion at
						  hardness=100mg/L is included.
[DAGGER] Indicates criterion based on the exposure
						  inputs of 2 liters per day of drinking water and consumption of 17.5 grams of
						  fish per day, for protection of a 70 Kg person.
CAS-Chemical Abstract Service number
CRL-Cancer risk level at 1 x
						  10-6
D-DEP developed criteria
E-EPA developed criteria
H-Threshold effect human health criterion; incorporates
						  additional uncertainty factor for some Group C carcinogens.
ln [H]-Natural Logarithm of the Hardness of stream as
						  mg/l CaCO3
ug/L-Micrograms per liter
N/A-Criterion not developed
PP NO-Priority Pollutant Number
The provisions of this §
														93.8c amended under sections
							 5(b)(1) and 402 of The Clean Streams Law (35 P.S. §§
															691.5(b)(1) and
							 691.402); section 1920-A of
							 The Administrative Code of 1929 (71 P.S. §
															510-20).
This section cited in 25 Pa. Code §
														16.24 (relating to metals
							 criteria); 25 Pa. Code §
														16.51 (relating to human health
							 and aquatic life criteria); 25 Pa. Code §
														16.61 (relating to special
							 provisions for the Great Lakes system); and 25 Pa. Code §
														93.8d (relating to development of
							 site-specific water quality
							 criteria).