Minnesota Administrative Rules

4715.1600 CHEMICAL WASTES.

Chemical or industrial liquid wastes which are likely to damage or increase maintenance costs on the drainage system, shall be pretreated to render them innocuous prior to discharge into the drainage system, when required by the administrative authority.

Piping conveying industrial, chemical, or process wastes from their point of origin to sewer connected pretreatment facilities shall be of such material and design as to adequately perform its intended function to the satisfaction of the administrative authority. Drainage discharge piping from pretreatment facilities or interceptors shall conform to standard drainage installation procedure.

No chemical vent shall intersect or tie into any vent for other services, except where permitted by the administrative authority.

The provision of this part relative to materials and construction for chemical piping need not apply to domestic photographic darkroom installations.

Statutory Authority:

MS s 326.37 to 326.45; 326B.43 to 326B.49

History:

L 2007 c 140 art 6 s 15; art 13 s 4

Published Electronically:

May 14, 2012