25 Pa. Code § 93.8e

Current through Register Vol. 54, No. 50, December 14, 2024

Section 93.8e - Special criteria for the Great Lakes System

(a)Special criteria. The special provisions in this section apply for the Great Lakes System, which includes the streams, rivers, lakes and other bodies of surface water within the drainage basin of the Great Lakes in this Commonwealth.

(b)Water quality criteria for the Great Lakes System. Human health and aquatic life criteria for the Great Lakes System are contained in Table 6 (relating to Great Lakes aquatic life and human health criteria). For any pollutant not listed in the table, criteria in Table 5 may be used to protect existing and designated uses, or criteria will be developed by the Department, as needed, in accordance with this chapter and § 16.61 (relating to special provisions for the Great Lakes System).

TABLE 6

GREAT LAKES AQUATIC LIFE AND HUMAN HEALTH CRITERIA

PP NO	Chemical Name	CAS Number	Fish and Aquatic Life Criteria
PP NO	Chemical Name	CAS Number	Criteria Continuous Concentrations (ug/L)	Criteria Maximum Concentration (ug/L)	Human Health Criteria (ug/L)
2M	Arsenic	07440382	*148 (As3+)	*340 (As3+)	N/A	-
4M	Cadmium	07440439	*{1.101672 -(ln[H]x0.041838)}x Exp(0.7852x ln[H]-2.715) (ex: @H=100, CCC=2.24)	*{1.136672 -(ln[H]x0.041838)}x Exp(1.128x ln[H]-3.6867) (ex: @H=100, CMC=4.26)	N/A	-
5M	Chromium, III	16065831	*0.860x Exp(0.819x ln[H]+0.6848)	*0.316x Exp(0.819x ln[H]+3.7256)	N/A	-
(ex: @H=100, CCC=74)	(ex: @H=100, CMC=570)
5M	Chromium, VI	18540299	*10.56	*15.73	N/A	-
6M	Copper	07440508	*0.960x Exp(0.8545x ln[H]-1.702)	*(0.960x Exp(0.9422xln[H]-1.700)	N/A
(ex: @H=100, CCC=8.96)	(ex: @H=100, CMC=13.44)
8M	Mercury	07439976	*0.77	*1.44	0.0031	H
9M	Nickel	07440020	*0.997x Exp(0.846x ln[H]+0.0584	*[0.998x Exp(0.846x ln[H]+2.255)	N/A	H
(ex: @H=100, CCC=52.01)	(ex: @H=100, CMC=468.24)
10M	Selenium	07782492	*4.61	N/A	N/A	-
13M	Zinc	07440666	*0.986x Exp(0.8473x ln[H]+0.884)	*0.978x Exp(0.8473x ln[H]+0.884)	N/A
(ex: @H=100, CCC=118.14)	(ex: @H=100, CMC=117.18)
14M	Cyanide, Free	00057125	5.2	22	600	H
3A	2,4-Dimethyl-phenol	00105679	N/A	N/A	450	H
5A	2,4-Dinitro-phenol	00051285	N/A	N/A	55	H
9A	Pentachlorophenol	00087865	Exp(1.005 [pH]-5.134)	Exp (1.005 [pH]-4.869)	N/A	-
@pH= 6.5 7.8 9.0	@pH = 6.5 7.8 9.0
Crit = 4.05 14.95 49.95	Crit = 5.28 19.49 65.10
3V	Benzene	00071432	N/A	N/A	1.2	CRL
7V	Chloro-benzene	00108907	N/A	N/A	470	H
22V	Methylene Chloride	00075092	N/A	N/A	4.7	CRL
25V	Toluene	00108883	N/A	N/A	5600	H
29V	Trichloro-ethylene	00079016	N/A	N/A	2.9	CRL
33B	Hexachloro-benzene	00118741	N/A	N/A	0.000045	CRL
36B	Hexachloro-ethane	00067721	N/A	N/A	0.53	CRL
4P	gamma-BHC (Lindane)	00058899	N/A	0.95	0.47	H
6P	Chlordane	00057749	N/A	N/A	0.000025	CRL
7P	4,4-DDT	00050293	N/A	N/A	0.000015	CRL
10P	Dieldrin	00060571	0.056	0.24	0.00000065	CRL
14P	Endrin	00072208	0.036	0.086	N/A	-
18P	PCBs	N/A	N/A	0.00000039	CRL
25P	Toxaphene	08001352	N/A	N/A	0.0000068	CRL
PP	2,3,7,8-TCDD	01746016	N/A	N/A	8.6 E-10	CRL
-	Parathion	00056382	0.013	0.065	N/A	-

Acronyms and Footnotes to Table 6

* Indicates dissolved metal criterion; others are total recoverable metals. Each listed dissolved criterion in Table 6 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 6 as the conversion factor (listed) multiplied by the hardness criterion equation; an example criterion at hardness=100mg/L is included.

CAS-Chemical Abstract Service number

CRL-Cancer risk level at 1 x 10^-6

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

(c)Wildlife criteria. Wildlife criteria will be developed for the bioaccumulative chemicals of concern (BCCs) in the Great Lakes System using methodologies contained in the Great Lakes guidance in 40 CFR Part 132, Appendix D (relating to Great Lakes Water Quality Initiative methodology for the development of wildlife criteria). The wildlife criteria are contained in the following table:

GREAT LAKES WILDLIFE CRITERIA

TABLE 7

PP NO	Chemical Name	Criterion (ug/L)
7-9P	DDT & METABOLITES	0.000011
8M	MERCURY	0.0013
18-24P	PCBs (TOTAL)	0.00012
PP	2,3,7,8-TCDD	3.1 E-9

25 Pa. Code § 93.8e

The provisions of this § 93.8e adopted May 15, 2009, effective 5/16/2009, 39 Pa.B. 2523; amended July 10, 2020, effective 7/11/2020, 50 Pa.B. 3426.

The provisions of this § 93.8e amended under sections 5(b)(1) and 402 of The Clean Streams Law (35 P.S. §§ 691.5(b)(1) and 691.402); and section 1920-A of The Administrative Code of 1929 (71 P.S. § 510-20).

This section cited in 25 Pa. Code §61.51 (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 § 93.8c (relating to human health and aquatic life criteria for toxic substances).