Slug Discharge Control Plans (SDCP)

The SDCP is required for facilities that have a waste discharge permit and experience non-routine discharges to their wastewater systems that are episodic in nature, including accidental spills or non-customary batch discharges. The plan can be required by sanitation districts when a facility is considered to have a reasonable potential to cause interference or pass through, or in any other way violate applicable ordinances, local limits or permit conditions.

In layman’s terms, a “slug” is any unplanned discharge into the sewer that the facility is not permitted to discharge. The purpose of an SDCP is to evaluate possible sources of slug discharges and have a plan in place to prevent it from happening.