1. (a) In addition to any other local or state requirements, any person proposing to construct or modify any of the following or any combination of the following shall submit an application for a sewer connection permit to the department:

   1. (1) Any extension of an interceptor sewer, whether public or private, regardless of flow;
   2. (2) Any wastewater connection or other discharge in excess of 5,000 gallons per day (gpd);
   3. (3) Any wastewater connection or other discharge to a WWTP operating in excess of 80 percent design flow capacity or design loading capacity based on actual average flow or loadings for 3 consecutive months;
   4. (4) Any sewage pumping station greater than 50 gpm or serving more than one building; or
   5. (5) Any proposed sewer that serves more than one building.

2. (b) The applicant for a sewer connection permit shall provide the following to the department:

   1. (1) Complete and submit electronically the "Sewer Connection Permit Application", NHDES-W-09-004, May 2025, available at https://onlineforms.nh.gov/?formtag=NHDES-W-09-008;
   2. (2) All applicable engineering documents required by Env-Wq 703.01 through Env-Wq 703.05;
   3. (3) The signature of and a statement from the engineer of record that the plans and specifications for the proposed sewer connection are in substantial compliance with requirements of Env-Wq 700, with the exception of any waiver requests identified in the application;
   4. (4) A certification from the municipality providing sewerage collection facilities serving the proposed connection certifying that the municipal sewage collection system facilities have been demonstrated, pursuant to Env-Wq 703.07(c), to have adequate processing capability for the proposed added hydraulic flow and organic load at the time of connection and that the proposed sewer connection or sewerage design meet with the approval of the local jurisdictional authority;
   5. (5) A certification from the municipality providing wastewater treatment facilities serving the proposed connection certifying that the municipal wastewater treatment system facilities have been demonstrated, pursuant to Env-Wq 703.07(c), to have adequate processing capability for the proposed added hydraulic flow and organic load at the time of connection;
   6. (6) The name, title, and signature of each municipality official who is authorized to sign on behalf of the municipality; and
   7. (7) The application fee in the amount specified in RSA 485-A:4, IX-a, as reprinted in Appendix C.
3. (c) The department shall issue a sewer connection permit or permit extension only if the receiving WWTP and the receiving sewerage are, or will be, capable of adequately processing the added hydraulic flow and organic load at the time of connection.
4. (d) A sewer connection permit shall be valid for 3 years from the date of issuance.
5. (e) Upon written request by a permittee, the department shall grant a maximum of one permit extension for 2 years from the date of issuance, if the receiving WWTP and the receiving sewerage are, or will be, capable of adequately processing the added hydraulic flow and organic load at the time of connection.

Source. (See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06; ss by #10693, eff 10-15-14; ss by #14258, eff 7-1-25, EXPIRES: 7-1-35