1. (a) The applicant for a new small CWS shall provide the following information with part I of the application:

   1. (1) The name, mailing address, daytime telephone number, and e-mail address of the applicant;
   2. (2) The name and mailing address of the owner(s) of the property on which the project will occur, if other than the applicant;
   3. (3) If the owner or applicant is a corporation, partnership, trust, or any other entity, the name, mailing address, daytime telephone number, and e-mail address of the individual representing the owner or applicant;
   4. (4) The name, mailing address, daytime telephone number, and e-mail address of the consultant for the project, if any;
   5. (5) The town tax map(s) and lot number(s) and street address of the property on which the project is proposed;
   6. (6) A brief description of the project and whether the proposed small CWS is a phase of a larger plan of development;
   7. (7) A list of all existing active and inactive wells or PWSs on the site, their respective uses, and whether the existing wells will be connected to the proposed CWS or have been abandoned pursuant to We 404;
   8. (8) A map specifically locating the proposed service area;

   9. (9) The size of the proposed PWS, including:

      1. a. The number of residential units and, for non-domestic flow, the number of residential- equivalent units based on one residential-equivalent unit being 300 gallons per day (gpd) design flow and rounding to the nearest full residential-equivalent unit;
      2. b. The design flow determined in accordance with Env-Dw 405.11;
      3. c. The required source capacity calculated pursuant to Env-Dw 405.13; and
      4. d. For each new well source proposed, the radius of the sanitary protective area (SPA) determined in accordance with Env-Dw 405.14;
   10. (10) A vicinity plan showing nearby existing CWSs;
   11. (11) If a new well source is proposed, a plan showing a north arrow, plan scale, property boundaries, tax map and lot numbers of the adjacent lots, a list of abutters, location of well(s), SPA, buildings, roads, roadway rights-of-way, driveways, parking areas, snow storage areas, surface waters, wetlands, natural drainage ways, flood hazard elevation as specified in (b) below, septic tanks, septic system areas, nitrate setbacks, fuel storage tanks, solid waste disposal areas, stormwater facilities, and grading; and
   12. (12) Location(s) and flow(s) of any proposed non-potable well(s); and
   13. (13) If the application is for a community well approval pursuant to Env-Dw 302 or Env-DW 305, or both as applicable, the location(s) and flow(s) of any proposed non-potable well(s).

2. (b) In addition to (c) below, the flood hazard elevation shall be determined using:

   1. (1) The freeboard value, reached by adding 3 feet to the one-percent-annual-chance flood elevation, or adding 3 feet to the highest flood elevation of record, whichever is higher; or
   2. (2) A best available scientific approach that uses readily available, actionable hydrologic and hydraulic data and methods that integrate current and future changes in flooding based on latest climactic predictions.
3. (c) If the project is for infrastructure within at least one of New Hampshire’s 17 coastal zone municipalities, including Dover, Durham, Exeter, Greenland, Hampton, Hampton Falls, Madbury, New Castle, Newfields, Newington, Newmarket, North Hampton, Portsmouth, Rollinsford, Rye, Seabrook, and Stratham, determination of the flood hazard elevation specified in (b) above, shall address projected storm surge, sea level rise, and precipitation events identified in the “New Hampshire Coastal Flood Risk Summary – Part I: Science and Part II: Guidance for Using Scientific Projections" prepared for the New Hampshire Coastal Flood Risk Science and Technical Advisory Panel 2019 available as noted in Appendix B. A representative concentration pathway (RCP) of RCP 4.5 or higher and a “low” or “very low” tolerance for flood risk shall be applied.
4. (d) If a new community well is proposed, the applicant shall comply with the requirements of Env- Dw 302 and Env-Dw 305, as applicable.

5. (e) If connection to another PWS is proposed, the supplying PWS owner shall provide information demonstrating:

   1. (1) Adequate quantities of water are available to serve the proposed PWS; and
   2. (2) With the proposed PWS online, adequate system pressures and source capacity will be maintained within the supplying PWS.

Source. #14158, eff 12-25-24