N.J. Admin. Code § 7:9A-10.6

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:9A-10.6 - Specific requirements for mounded soil replacement disposal field installations

(a) Mounded soil replacement disposal fields shall be constructed as follows:

1. An excavation shall be made to the required depth throughout the entire area of the disposal field and extended laterally in all directions a minimum of two feet beyond the perimeter of the disposal field.

2. This excavation shall be backfilled with suitable fill material and the fill material mounded up over the excavation to produce a mound of the desired height in which to install the disposal field.

3. The sides of the mound shall be constructed with slopes of three to one or less. Alternatively, lateral support for the fill layer may be provided by a retaining wall that meets the requirements described at 7:9A-10.5(e)5.

(b) Requirements and restrictions relating to site regrading shall be the same as those prescribed for conventional installations in 7:9A-10.3(b).

(c) Excavation prior to placement of fill material shall be carried out as specified in 7:9A-10.3(c)2 through 5.

(d) Fill material shall meet the requirements of 7:9A-10.4(d).

(e) Construction of the disposal field and distribution network shall be as prescribed for conventional installations in 7:9A-10.3(d).

(f) Filter material shall be as prescribed for conventional installations, in 7:9A-10.3(e).

(g) Backfill and final grading shall be as prescribed for mounded installations, in 7:9A-10.5(h).

N.J. Admin. Code § 7:9A-10.6

Amended by R.2012 d.066, effective 4/2/2012.
See: 43 N.J.R. 478(a), 44 N.J.R. 1047(a).
In (a)3, inserted the second sentence.