In accordance with revisions to 314 CMR 7.00 Sewer Extension and Connection Permitting regulations, promulgated June 20, 2014:

  • MassDEP will retain the existing permit requirements for certain industrial facilities (by SIC code) that discharge greater than 25,000 gallons per day to a treatment facility that does not have an approved industrial pretreatment program.
  • MassDEP will retain its ability to require a permit where the Department determines that the discharge will, or has the potential to, pass through the treatment facility, cause water quality violations in the receiving water, or by-pass treatment.
  • MassDEP will no longer issue permits for sewer extensions or connections for discharges that do not meet the thresholds for state permitting described above.


NOTE: If you need these forms in an alternate format, please contact Sanh Tran at 617-556-1036 or

Industrial Wastewater Toxic Pollutants Certification  doc format of Industrial Wastewater Toxic Pollutants Certification

Industrial Wastewater Additional Industrial Wastewater Pretreatment System Certification  doc format of IWW Additional IWPS Certification


Related: BRP WP 91, 92 - Permit for Industrial Sewer User