TABLE_33C_proposed_changes_071713_internal_review

TABLE 33C: Water Quality Guidance Values for Toxic Pollutants ^A

Water Quality Guidance Values Summary

The concentration for each compound listed in Table 33C is a guidance value that can be used in application of Oregon’s Toxic Substances Narrative (340-041-0033(2)) to waters of the state in order to protect aquatic life. All values are expressed as micrograms per liter (µg/L) except where noted. Compounds are listed in alphabetical order with the corresponding EPA number (from National Recommended Water Quality Criteria: 2002, EPA-822-R-02-047), corresponding Chemical Abstract Service (CAS) number, aquatic life freshwater acute and chronic guidance values, and aquatic life saltwater acute and chronic guidance values.

Table 33C Water Quality Guidance Values Summary
EPA No.	Compound	CAS Number
			Freshwater		Saltwater
			Acute	Chronic	Acute	Chronic
56	Acenaphthene	83329	1,700	520	970	710
17	Acrolein	107028	68	21	55
18	Acrylonitrile	107131	7,550	2,600
1	Antimony	7440360	9,000	1,600
2	Arsenic	7440382	850	48	2,319	13
19	Benzene	71432	5,300		5,100	700
59	Benzidine	92875	2,500
3	Beryllium	7440417	130	5.3
19 B	BHC (Hexachlorocyclohexane-Technical)	319868	100		0.34
21	Carbon Tetrachloride	56235	35,200		50,000
	Chlorinated Benzenes		250	50	160	129
	Chlorinated naphthalenes		1,600		7.5
	Chloroalkyl Ethers		238,000
26	Chloroform	67663	28,900	1,240
45	Chlorophenol 2-	95578	4,380	2,000
	Chlorophenol 4-	106489			29,700
52	Methyl-4-chlorophenol 3-	59507	30
5a	Chromium (III)	16065831			10,300
109	DDE 4,4'-	72559	1,050		14
110	DDD 4,4'-	72548	0.06		3.6
	Diazinon	333415	0.08	0.05
	Dichlorobenzenes		1,120	763	1,970
29	Dichloroethane 1,2-	107062	118,000	20,000	113,000
	Dichloroethylenes		11,600		224.000
46	Dichlorophenol 2,4-	120832	2,020	365
31	Dichloropropane 1,2-	78875	23,000	5,700	10,300	3,040
32	Dichloropropene 1,3-	542756	6,060	244	790
47	Dimethylphenol 2,4-	105679	2,120
	Dinitrotoluene		330	230	590	370
16	Dioxin (2,3,7,8-TCDD)	1746016	0.01	38pg/L
85	Diphenylhydrazine 1,2-	122667	270
33	Ethylbenzene	100414	32,000		430
86	Fluoranthene	206440	3,980		40	16
	Haloethers		360	122
	Halomethanes		11,000		12,000	6,400
89	Hexachlorobutadiene	87683	90	9.3	32
90	Hexachlorocyclopentadiene	77474	7	5.2	7
91	Hexachloroethane	67721	980	540	940
93	Isophorone	78591	117,000		12,900
94	Naphthalene	91203	2,300	620	2,350
95	Nitrobenzene	98953	27,000		6,680
	Nitrophenols		230	150	4,850
26 B	Nitrosamines	35576911	5,850		3,300,000
	Pentachlorinated ethanes		7,240	1,100	390	281
54	Phenol	108952	10,200	2,560	5,800
	Phthalate esters		940	3	2,944	3.4
	Polynuclear Aromatic Hydrocarbons				300
	Tetrachlorinated Ethanes		9,320
37	Tetrachloroethane 1,1,2,2-	79345		2,400	9,020
	Tetrachloroethanes		9,320
38	Tetrachloroethylene	127184	5,280	840	10,200	450
	Tetrachlorophenol 2,3,5,6					440
12	Thallium	7440280	1,400	40	2,130
39	Toluene	108883	17,500		6,300	5,000
	Trichlorinated ethanes		18,000
41	Trichloroethane 1,1,1-	71556			31,200
42	Trichloroethane 1,1,2-	79005		9,400
43	Trichloroethylene	79016	45,000	21,900	2,000
55	Trichlorophenol 2,4,6-	88062		970

The following chemicals/compounds/classes are of concern due to the potential for toxic effects to aquatic organisms; however, no guidance values are designated. If these compounds are identified in the waste stream, then a review of the scientific literature may be appropriate for deriving guidance values.

Polybrominated diphenyl ethers (PBDE)

Polybrominated biphenyls (PBB)

Pharmaceuticals

Personal care products

Alkyl Phenols

Other chemicals with Toxic effects

Footnotes:

A Values in Table 33C are applicable to all basins.

B This number was assigned to the list of non-priority pollutants in National Recommended Water Quality Criteria: 2002 (EPA-822-R-02-047).