Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 254 - Iron and steel manufacturing
Subchapter I - Cokemaking Subcategory
Section NR 254.012 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Universal Citation: WI Admin Code § NR 254.012

Current through August 26, 2024

(1) Except as provided in 40 CFR 125.30 to 125.32, any existing source subject to this subchapter shall achieve the effluent limitations set forth in sub. (2), (3), or (4) representing the degree of effluent reduction attainable by the application of BPT.

(2) IRON AND STEEL BYPRODUCT COKEMAKING.

(a) The following BPT effluent limitations apply:

Table 1

Iron and Steel Byproduct Cokemaking

BPT Effluent Limitations
Maximum for any 1 day	Average of daily values for 30 consecutive days
Pollutant or pollutant property	kg/kkg (pounds per 1,000 pounds) of product
TSS	0.253	0.131
O&G	0.0327	0.0109
Ammonia-N	0.274	0.0912
Cyanide	0.0657	0.0219
Phenols (4AAP)	0.00451	0.00150
pH	(1)	(1)

(1) Within the range of 6.0 to 9.0

(b) Increased loadings, not to exceed 11% above the limitations in par. (a), are allowed for plants which have wet desulfurization systems but only to the extent that such systems generate an increased effluent volume.

(c) Increased loadings, not to exceed 27% above the limitations in par. (a), are allowed for plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.

(3) MERCHANT BYPRODUCT COKEMAKING.

(a) The following BPT effluent limitations apply:

Table 2

Merchant Byproduct Cokemaking

BPT Effluent Limitations
Maximum for any 1 day	Average of daily values for 30 consecutive days
Pollutant or pollutant property	kg/kkg (pounds per 1,000 pounds) of product
TSS	0.270	0.140
O&G	0.0349	0.0116
Ammonia-N	0.292	0.0973
Cyanide	0.0701	0.0234
Phenols (4AAP)	0.00481	0.00160
pH	(1)	(1)

(1) Within the range of 6.0 to 9.0

(b) Increased loadings, not to exceed 10% above the limitations in par. (a), are allowed for plants which have wet desulfurization systems but only to the extent that such systems generate an increased effluent volume.

(c) Increased loadings, not to exceed 25% above the limitations in par. (a), are allowed for plants which include indirect ammonia recovery systems but only to the extent that such systems generate an increased effluent volume.

(4) BEEHIVE COKEMAKING. Beehive cokemaking operations may not discharge process wastewaters to waters of the state.

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