Wis. Admin. Code Department of Natural Resources NR 274.022

Current through October 28, 2024
Section NR 274.022 - 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 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT:

Table 2-1

Primary Aluminum Smelting

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of hot aluminum metal

Fluoride

2.0

1.0

Total suspended solids

3.0

1.5

pH

(1)

(1)

(1) Within the range of 6.0 to 9.0.

Wis. Admin. Code Department of Natural Resources NR 274.022

Cr. Register, March, 1991, No. 423, eff. 4-1-91.