Who do I contact?

Please direct questions or comments concerning the use of the NRWS or Regional Sewage System to Pretreatment & Source Control (909) 993-1600.

Visit the WATER SOURCES PRETREATMENT & SOURCE CONTROL page. Permit types are based on TDS limits, location, and amount of discharge.

Please see the Permit Application Flowchart to determine the appropriate path to obtain an industrial wastewater discharge permit.