New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Dw - Drinking Water Programs
Chapter Env-Dw 400 - PUBLIC WATER SYSTEM CLASSIFICATION AND DESIGN
Part Env-Dw 405 - DESIGN STANDARDS FOR SMALL COMMUNITY WATER SYSTEMS
Section Env-Dw 405.08 - Plans
Universal Citation: NH Admin Rules Env-Dw 405.08
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 one inch equals 60 feet; and
(4) For architectural plans, drawn to the
scale of one foot equals 1/4 inch or one 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 names and 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 the owner;
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 one inch being equal to 20 feet to 1 inch being equal to
50 feet and show or identify the following:
a
. Property boundaries, the name of each adjacent owner, and the
ultimate 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;
3. A typical trench
section showing depth of cover and bedding material; and
d . Elevation contours at not less than 5
foot 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, and stairs;
d.
Pipe sizes and materials, valves such as check, gate, and pressure 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 part heading for Env-Dw 405) #10612, eff 6-1-14
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.
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