Wis. Admin. Code Department of Natural Resources NR 231.13 - Pretreatment standards
The pretreatment standards for discharges to publicly owned treatment works from sources subject to the provisions of this chapter shall be as set forth in ch. NR 211.
| For Subcategory (1) | For Subcategory (2) | |||
| Parameter | 30 Day Ave. | Daily Max. | 30 Day Ave. | Daily Max. |
| BOD5 | 0.24 | 0.72 | x | x |
| COD | 2.59 | 7.77 | x | x |
| Suspended solids | 0.084 | 0.25 | 0.088 | 0.26 |
| Oil and grease | x | x | 0.035 | 0.11 |
Notes
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