Skip to Page Content
Delaware.gov Governor | General Assembly | Courts | Elected Officials | State Agencies
  Photo: Featured Delaware Photo
 
 
  Phone Numbers   Mobile   Help   Size   Print   Email

Skip Navigation LinksDNREC : Division of Water : Information : Surface Water Discharges Information : SWDS Compliance

DNREC Logo

Compliance Training, Assistance, and Enforcement

Each National Pollutant Discharge Elimination System (NPDES) permit requires that the discharger must collect representative samples of the discharge, analyze specified parameters, and report the results. Surface Water Discharges Section staff review the data submitted, conduct their own surveillance and monitoring program, and provide both assistance and oversight to ensure facilities regain or maintain compliance. Individual permittees must report monitoring results monthly, using the Discharge Monitoring Report (DMR) form developed specifically for each facility and test methods specified by federal regulations.

The DMR lists parameters in the discharge that have a reasonable potential to cause or contribute to water quality problems in receiving waters. Example parameters are nitrogen, phosphorus, temperature, total suspended solids (TSS), 5-day biological oxygen demand (BOD5), dissolved oxygen, pH, copper, oil & grease, benzene, and PCBs. Although DMRs are submitted monthly, actual monitoring frequency ranges from continuously to once per year, depending on the sensitivity of the receiving waters, the discharge’s characteristics, and its volume relative to the receiving waters.

Return to Surface Water Discharges Section

 
site map   |   about this site   |    contact us   |    translate   |    delaware.gov