Regulations last checked for updates: May 14, 2024

Title 40 - Protection of Environment last revised: May 10, 2024
§ 437.14 - New source performance standards (NSPS).

(a) Except as provided in § 437.10(b), any new source subject to this subpart must achieve the following performance standards:

Performance Standards

Regulated
parameter
Maximum daily 1 Maximum monthly avg. 1
Conventional Parameters
O&G20550.2
pH( 2)( 2)
TSS29.611.3
Metal Parameters
Antimony0.1110.0312
Arsenic0.09930.0199
Cadmium0.7820.163
Chromium0.1670.0522
Cobalt0.1820.0703
Copper0.6590.216
Lead1.320.283
Mercury0.0006410.000246
Nickel0.7940.309
Selenium0.1760.0698
Silver0.03180.0122
Tin0.09550.0367
Titanium0.01590.00612
Vanadium0.06280.0518
Zinc0.6570.252

1 mg/L (ppm).

2 Within the range 6 to 9.

(b) In-plant standards for cyanide are the same as the limitations specified in § 437.11(b).

source: 65 FR 81300, Dec. 22, 2000, unless otherwise noted.
cite as: 40 CFR 437.14