Billing1 (866) 281-5737Customer Service(314) 768-6260

Special Discharges

The special discharge program allows users to obtain approval to discharge wastewater of unusual strength or character. Special discharge approvals are granted for onsite discharges and for hauled waste classified as industrial. The majority of the onsite special discharges are from underground storage tank removal projects and other site remediation projects.

Obtaining approval for a special discharge involves submitting an application of special discharge removal, along with analytical results of a representative sample of wastewater. Required information may also include a material safety data sheet or information on a ground water treatment system, as applicable.

Once all the requested information is received, the submitted application is reviewed to ensure compliance.  Approvals for acceptable discharges are typically provided within two days after all the information has been received. For more information concerning special discharges, please call us at (314) 436-8755.