WP 79, 85: Individual Discharge Permits

Apply for this permit if your facility discharges over 10,000 gallons per day of treated sanitary wastewater to the ground. This permit also covers laundromats and carwashes.

314 CMR 5.00 Contact Information

The Details

What you need

These permits are required for the discharge of treated sanitary wastewater in excess of 10,000 gallons per day (gpd) to the ground, or discharges from laundromats or carwashes or other discharges requiring an individual discharge permit not specified by another groundwater discharge permit category.

You must apply for these permits if:

  • You propose a treatment system for sanitary wastewater that will discharge more than 10,000 gpd to the ground (WP 79)
  • You propose a treatment system for wastewater discharges to the ground from a laundromat, carwash, or other type of discharge not specified in another groundwater discharge category.

How to apply

See details in Step 5, below.

Next steps

  1. Review the Instructions

  2. Complete the Application Form

    You may fill out and save the Microsoft Word form on your computer. The PDF version has to be printed out and completed by hand. 

  3. Obtain a Transmittal Form & Number

    A unique Transmittal Number is needed for each application you submit to MassDEP.

  4. Look up the Permit Application Fee

    See page 5 of the fee schedule below.

  5. Mail your Application and Fee Payment

    Submit your application fee payment and transmittal form to:

    Department of Environmental Protection
    PO Box 4062
    Boston, MA 02211

    Submit your completed, signed application and a copy of your transmittal form to the Wastewater Management Program in the appropriate MassDEP Regional Office (see listing below).

    Send a copy of the application only to:

    Department of Environmental Protection
    Wastewater Management Program
    One Winter Street
    Boston, MA 02108



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