WP 28, 29, 30, 31, 32: Residuals Management

These permits and approvals regulate the land application of sludge, sludge products, and septage.

Residuals Management Contact

The Details

What you need

This suite of permits leads to final approval for land application of residuals for beneficial purposes. WP 28 and WP 29 are required for all approvals. WP 30, 31, and 32 are project-specific and are only required if the project is classified as a Type II or III material. 

  • WP 28 is the approval of sampling and analysis plan prior to land application of sludge and septage.
  • WP 29 is the determination of suitability for land application of sludge and septage.
  • WP 30 is the approval for land application of Type II and III sludge or sludge products on 0.5 acres or more.
  • WP 31 is the approval for land application of Type II and III sludge or sludge products on less than 0.5 acres.
  • WP 32 is for renewal or modification of a land-application certificate.

You must apply for these permits if you wish to utilize sludge, sludge-derived products, or septage as a fertilizer or soil conditioner. Please read all the guidance contained in the Instructions (see below). 

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 and 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 a copy of your transmittal form to:

    Department of Environmental Protection
    PO Box 4062
    Boston, MA 02211

    Submit your completed application and transmittal form to the Wastewater Permitting Program at the appropriate MassDEP Regional Office (see listing below).



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