Wis. Admin. Code Department of Natural Resources NR 286.11

Current through October 28, 2024

Section NR 286.11 - Effluent limitations, best available treatment

The following effluent limitations for all or specific subcategories establish the quantity or quality of pollutants or pollutant properties which may be discharged by a facility subject to the provisions of this chapter after application to process wastes of the best available technology economically achievable.

(1) The pH of all discharges shall be within the range of 6.0 to 9.0.

(2) The 30-day average and daily maximum limitations for BOD5, suspended solids, and other parameters are set forth in table 2.

(3) The limitations of table 2 are in lbs/1000 lbs or kg/1000 kg of raw material for subcategories (e), (f), (g), (j) and (k) and of product for the other subcategories of s. NR 286.02.

(4) The limitations for lead in table 2 apply only to discharges attributable to the manufacture of lead sheathed hose.

(5) The limitations for chromium in table 2 apply only to facilities using a chromic acid form cleaning operation.

(6) For facilities in subcategory (e), (f), or (g) having wet scrubbing operations the 30 day average and daily maximum discharge limitations for suspended solids shall be increased above those calculated from table 2 by respectively 0.5 and 1.0 lbs/1000 lbs or kg/1000 kg of raw material equivalent.

Table 2

BAT Effluent Limitations

Sus. Solids		Oil & Grease		BOD5		Other Parameters
Subcategory	ave.	max.	ave.	max.	ave.	max.	ave.	max.
(a)	.064	.096	.016	.024
(b)	.16	.24	.08	.12	.08	.12	2.08	3.12 COD
(c)	.16	.24	.08	.12	.08	.12	2.08	3.12 COD
(d)	.07	.11	.14	.21	.07	.11	1.78	2.66 COD
(e)	.64	1.28	.25	.70	.0007	.0017 lead
(f)	.40	.80	.15	.42	.0007	.0017 lead
(g)	.25	.50	.093	.26	.0007	.0017 lead
(h)	.52	1.04	.144	.40	6.11	14.7 COD
(i)	.192	.384	.144	.40	2.8*	6.7* COD
(j)	2.90	6.96	.73	2.00	2.20	3.72	.0036	.0086 Cr
(k)	.94	2.26	1.4	2.4	.024	.058 Zinc

Subcategories are set forth in s. NR 286.02.

*These limitations are applicable only to facilities in which dry digestion processes are integrated with wet digestion processes for reclaiming rubber.

Wis. Admin. Code Department of Natural Resources NR 286.11

Cr. Register, June, 1976, No. 246, eff. 7-1-76.