Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 437.14: New source performance standards (NSPS).

Where this section sits in the code

(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&G 205 50.2

pH (2) (2)

TSS 29.6 11.3

Metal Parameters

Antimony 0.111 0.0312

Arsenic 0.0993 0.0199

Cadmium 0.782 0.163

Chromium 0.167 0.0522

Cobalt 0.182 0.0703

Copper 0.659 0.216

Lead 1.32 0.283

Mercury 0.000641 0.000246

Nickel 0.794 0.309

Selenium 0.176 0.0698

Silver 0.0318 0.0122

Tin 0.0955 0.0367

Titanium 0.0159 0.00612

Vanadium 0.0628 0.0518

Zinc 0.657 0.252

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).

Collected 2026-08-27T02:26:04Z. Source file · JSON