New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Ws - Division of Water
Chapter Env-Ws 300 - NEW HAMPSHIRE DRINKING WATER RULES
Part Env-Ws 372 - DESIGN STANDARDS FOR SMALL COMMUNITY WATER SYSTEMS
Section Env-Ws 372.08 - Plans

Universal Citation: NH Admin Rules Env-Ws 372.08

Current through Register No. 13, March 27, 2025

(a) Design documents shall provide adequate information to analyze the expected system performance and serve as a detailed permanent record for future owners, maintenance personnel, and the department.

(b) All water system plans submitted to the department by or on behalf of the water system owner shall be:

(1) P rints or copies of original drawings, with no original drawings or line work and no highlighting unless existing line work is traced;

(2) On paper that is 24 inches by 36 inches;

(3) For site plans, drawn to a scale no greater than 1 inch equals 60 feet; and

(4) For architectural plans, drawn to the scale of 1 foot equals 1/4 inch or 1 foot equals 3/8 inch.

(c) The plans and other documents shall be neat, fully detailed, and drawn to scale. All lettering shall be neatly printed or mechanically or electronically set.

(d) The project plan(s) shall include the following items:

(1) A location key or locus plan, which shall:
a. Be not less than 3 inches by 3 inches;

b. Be on a scale e qual to the latest United States Geological Survey (USGS) scale, 1 inch being equal to 2,000 feet, if available; and

c. Identify street namesand other principal features;

(2) A title block, which shall include the following:
a. The name of the project, its location, and the design date;

b. The name, mailing address, and daytime phone number of theowner;

c. The name, mailing address, and daytime phone number of the system designer;

d. The scale used; and

e. Space for noting the date(s) of any subsequent plan revisions;

(3) A site plan, which shall be drawn to a scale in the range of 1 inch being equal to20 feet to 1 inch being equal to50feet and show or identify the following:
a. Property boundaries, the name of each adjacent owner, and theultimate scope of the project;

b. All roads, existing and proposed wastewater disposal, green areas, north arrow, lot numbers, and property lines;

c. The water distribution piping system including:
1. P ipe size, location, and material;

2. Gate valves and blow-offs; and

3. A typical trench section showing depth of cover and bedding material; and

d . Elevation contours at not less than 5foot intervals; and

(4) The plans for a pumphouse, which shall include the following:
a. At least one detailed scaled plan and elevation and one section view of the proposed pumphouse, piping, and storage tanks;

b. The building dimensions, elevations, and construction details, and finished site grading;

c. All construction materials to be used for floors, walls, roof, andstairs;

d. Pipe sizes and materials, valves such as check, gate, andpressure reducing valves, water meter(s), sampling taps, air compressor(s), storage tanks, booster pumps, heat, lights, ventilation, and any gravity floor drains; and

e. An electrical wiring schematic including all water system control devices such as on/off switches and low water level alarms.

(See Revision Note at chapter heading Env-Ws 300) #6521, eff 6-4-97; ss by #8360, INTERIM, eff 6-4-05, EXPIRES: 12-1-05; ss by #8496, eff 11-30-05

Disclaimer: These regulations may not be the most recent version. New Hampshire may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.