- (1) Wash water shall not be discharged to any wasteway or drain if it is possible to dispose of the water by irrigation on land.
- (2) If wash water is to be discharged to any wasteway or drain it must first be settled in a tank equipped with continuous sludge removal equipment and having a detention period of 2 hours or in a lagoon with a similar detention period with sufficient additional space for sand and solids accumulation.
- (3) Wash water may be lagooned or used for irrigation.
[Rule .04.243 (C)(5), filed 3/1/60.]