§ 465.21 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Latest Version
Updated Versions
- Thursday, January 1, 1998
- Wednesday, December 1, 1982
Related Notices
- 07-1073. Final rule. 07-1073. Guidelines Establishing Test Procedures for the Analysis of Pollutants Under the Clean Water Act; National Primary Drinking Water Regulations; and National Secondary Drinking Water Regulations; Analysis and Sampling Procedures
- 04-6427. Proposed rule. 04-6427. Guidelines Establishing Test Procedures for the Analysis of Pollutants Under the Clean Water Act; National Primary Drinking Water Regulations; and National Secondary Drinking Water Regulations; Analysis and Sampling Procedures

Latest version.

§ 465.21 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:

Subpart B

Pollutant or pollutant property	BPT effluent limitations
	Maximum for any 1 day		Maximum for monthly average

	mg/m² (pounds per 1 million ft²) of area processed
Chromium	1.10	(0.23)	0.45	(0.091)
Copper	4.96	(1.02)	2.61	(0.54)
Cyanide	0.76	(0.16)	0.32	(0.064)
Zinc	3.47	(0.71)	1.46	(0.30)
Iron	3.21	(0.66)	1.65	(0.34)
Oil and grease	52.2	(10.7)	31.3	(6.42)
TSS	107.0	(21.9)	52.2	(10.7)
pH	(¹)	(¹)	(¹)	(¹)

[47 FR 54244, Dec. 1, 1982; 49 FR 33648, Aug. 24, 1984]

                    
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