New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wq - Water Quality and Quantity Programs
Chapter Env-Wq 1000 - SUBDIVISIONS; INDIVIDUAL SEWAGE DISPOSAL SYSTEMS
Part Env-Wq 1016 - CONSTRUCTION REQUIREMENTS FOR ALL EDA
Section Env-Wq 1016.04 - Type of Stone for Conventional Stone-and-Pipe Beds or Trenches

Universal Citation: NH Admin Rules Env-Wq 1016.04

Current through Register No. 13, March 27, 2025

(a) The pipe, laid in a bed or trench of sufficient width and depth, shall be supported by approved septic stone as specified in (b), below.

(b) Approved septic stone shall be clean, uniformly-sized washed crushed stone, washed rock, or similar aggregate sized as specified in Table 1014-2, below.

(c) Approved septic stone shall be certified by its producer or distributer as meeting the sieve size and percent passing by weight requirements specified in Table 1014-2, below, based on testing done in accordance with test method T11 as published by AASHTO:

Table 1016-2: Approved Septic Stone Requirements

Sieve Size

Percent Passing By Weight

2 inches

100

1.5 inches

90 - 100

3/4 inch

0 - 20

#4

0 - 5

#200

0 - 2

(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08

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