Seaford takes first reading on code change to reclassify small industrial wastewater dischargers

Seaford council on Aug. 12 received a first reading of a proposed municipal code change to the industrial pretreatment ordinance that would allow the city to reclassify certain categorical industrial users as non-significant industrial users when their discharges meet federal exclusion criteria. Operations coordinator Brian Tift explained the change mirrors federal EPA pretreatment guidance (the streamlining rule) that recognizes very small dischargers pose limited risk and can be treated as non-significant even when they fall under categorical industry standards. Under the proposed language, the director may determine that an industrial user subject to categorical standards is non-significant based on flow volume and pollutant characteristics. Council discussed examples and criteria. Tift and council members said volume is a common metric (one exclusion threshold cited was less than 100 gallons per day), but they emphasized decisions would not rely solely on flow; pollutant concentration, pretreatment practices and potential impacts on the wastewater plant would also be considered. Tift and other staff said in cases where concentrated wastes present a risk, the city could still require pretreatment to protect the plant. Council did not take final action; the item was given a first reading and will return for a subsequent reading and vote. Why it matters: Seaford operates a regionalized treatment plant receiving discharges from surrounding communities. The proposed change gives city staff discretion to reduce permitting and sampling burdens for very small categorical dischargers while preserving the city9s authority to require pretreatment when necessary to protect the plant and downstream environment. Next steps: staff will bring the ordinance language back for second reading and council consideration.