Where the expected sewage flow from a facility exceeds thirty two (32) gallons per minute for a five (5) hour period, or ten thousand (10,000) gallons per day, approval from the City Engineer will be required. Approval will be based upon the types of flow-equalizing equipment and preliminary treatment facilities provided for the heavy loadings of BOD, suspended solids, nutrients, and heavy metals present in the sewage. (Ord. 196, 9-9-1980)