N.J. Admin. Code § 7:9A-9.8 - Products in lieu of laterals and/or filter material
(a) The Department
shall maintain a list of products that may be used in lieu of laterals
specified in
7:9A-9.5 and/or filter material
specified in
7:9A-10.3(e) as
acceptable alternatives to those specifications. For systems designed as
pressure dosing networks (see
7:9A-9.6 ), these products may be
used in lieu of the filter material only, and then only if the required
laterals are securely installed within the specified product. These products
may be used for a trench or bed configurations designed in accordance with this
section in conventional, soil replacement-bottom lined, soil replacement-fill
enclosed, mounded, and mounded soil replacement systems, designed in accordance
with the requirements of N.J.A.C. 7:9A-10. Manufacturers of these products
shall comply with the following:
1. Any
manufacturer seeking listing of a product pursuant to this section shall submit
a written request to the Department at the address identified at
7:9A-3.9(e)
identifying that manufacturer. The written request shall include all results
documenting structural integrity of the product evaluated in accordance with an
American Association of State Highway and Traffic Officials (AASHTO) H-10 load
rating (16,000 lbs/axle), incorporated by reference, as amended. AASHTO load
rating methods can be obtained at http://transportation.org. The request
shall additionally specify a means of installing inspection ports that will
allow an inspector or system owner to determine the depth of wastewater within
the product. Any other performance based certifications or approvals from other
states that have been issued for the product should also be included with the
request.
2. Manufacturers shall
make available up-to-date training, design, installation and service manuals
and materials to any administrative authority or the Department upon
request.
3. Manufacturers shall
comply with all requirements of this chapter and any requirements of any
certification submitted in support of this listing, including the manufacture,
design or construction standards for the product used in support of the AASHTO
load rating report.
4. If a
manufacturer of a product used in lieu of laterals and filter material wishes
to allow for an alternative inlet invert elevation of 12 inches above the level
of infiltration, required by N.J.A.C. 7:9A-10 for the various types of system
designs, an alternative inlet invert may be requested by a manufacturer if it
can be demonstrated to the Department that the product will provide an
equivalent storage capacity provided by laterals and filter material in a
standard system design. Alternative inlet invert heights will be specified in
the list provided by the Department.
(b) Systems that are proposed to include
products identified on the Department list developed in accordance with (a)
above shall be designed by a septic system designer who is sufficiently
knowledgeable of the product and installed by an authorized installer. A copy
of the authorized installer's written certification as required in
7:9A-3.17 shall be available upon
request.
(c) Any system containing
these products shall be designed and installed in accordance with all
manufacturer's specifications and recommendations and the minimum requirements
of this chapter. The septic system designer shall certify on the plans that he
or she is sufficiently knowledgeable of the technology to design the system
being proposed.
(d) The minimum
area of the disposal field shall be calculated in accordance with
7:9A-10.2. The product shall be
designed in accordance to the manufacturer's recommendations. If the
manufacturer recommends a specified spacing between product units, the disposal
area does not need to be increased provided the spacing does not exceed six
inches. If the soil between the units does not have the capacity to become
saturated or spacing of the units exceeds six inches, the minimum disposal area
must equal the bottom area of the units only, not including the space between
the units.
(e) When pressure dosing
is specified, a distribution pipe meeting the requirements of
7:9A-9.6 shall be installed
according to manufacturer's instructions. Holes in the distribution pipe shall
face up at an angle consistent with manufacturer's instructions.
(f) Inspection ports shall be installed in
the four corners of the disposal area within the product. When individual rows
of the product are not immediately adjoining or are not interconnected at both
ends within four inches of the level of infiltration, inspection ports shall be
installed in each end of each row of these products.
(g) Drainage fabric required at
7:9A-10.3(e)3 may
be omitted for those products where the manufacturer has specified in the
design standards that drainage fabric is not required and that the product is
designed to prevent soil material above the product from migrating into the
product and to the level of infiltration.
(h) When a disposal bed with a distribution
box is proposed, in lieu of
7:9A-9.4(a)2 i,
the distribution box shall be installed within two feet of the disposal bed
using the criteria specified in
7:9A-9.4(a)2
ii.
Notes
See: 43 N.J.R. 478(a), 44 N.J.R. 1047(a).
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