[Adopted 6-2-1988 by L.L No. 7-1988; amended in
its entirety 10-4-1990 by L.L. No. 7-1990]
The purpose of this article is to provide standards governing the construction
of alternative subsurface sewage disposal systems within the Town of Mamakating.
Evapotranspiration-absorption systems shall not be permitted or constructed
within the Town of Mamakating.
[Amended 7-11-1991 by L.L. No. 9-1991; 5-13-1997
by L.L. No. 3-1997]
New and replacement raised systems, as defined and outlined in Appendix 75A of Wastewater Treatment, Individual Household Systems, as allowed for under Public Health Law § 201, Subdivision 1(l), will be allowed in the Town of Mamakating, subject to the review and approval of the New York State Department of Health (for new raised systems) and review and approval of the Town of Mamakating Town Engineer and the payment of the fees as provided in §
155-3.3 (for replacement systems). All raised systems must comply with all requirements outlined in Appendix 75A as attached. However, in addition to the requirements of Appendix 75A, the
Town of Mamakating establishes the following requirements:
A. The new or replacement raised system shall be designed
and submitted by a professional engineer licensed in the State of New York.
In the case of a new raised system, the engineer shall certify to the New
York State Department of Health (NYSDOH) and the Town that the site soil evaluation
and the plans meet the minimum requirements of these standards. Construction
must be supervised by the engineer who designed the system, and certification
of construction in conformance with the approved plans shall be provided by
such engineer to NYSDOH and the Town prior to a certificate of occupancy being
issued. In the case of a replacement raised system, the engineer shall certify
to the Town of Mamakating, through the Town Engineer, that the site soil evaluation
and the plans meet the minimum requirements of these standards. Construction
must be supervised by the engineer who designed the system, and certification
of construction in conformance with the approved plans shall be provided by
such engineer to the Town, through the Town Engineer, prior to a certificate
of occupancy being issued.
B. Two percolation tests and a deep hole test shall be performed
on the native soil within the limits of the proposed raised system. In the
case of a new raised system, the results of the percolation tests and the
deep hole test are to be submitted to the Town and NYSDOH for review along
with the design of the new system. In the case of a replacement raised system,
the results of the percolation tests and the deep hole test are to be submitted
to the Town, through the Town Engineer, for review along with the design of
the replacement system.
C. A system shall not be built in unstabilized fill material.
The fill material shall be allowed to settle naturally for a period of at
least six months, to include one freeze-thaw cycle.
D. Raised systems may not be constructed on natural site
slopes greater than 10%.
E. Two percolation tests shall be performed in the soil
material at the borrow pit proposed to be utilized for the system. Following
construction and stabilization of the fill material, two percolation tests
must be performed within the limits of the bed and certified by a professional
engineer licensed in the State of New York. The proposed stabilized percolation
rate shall fall between five minutes per inch and 30 minutes per inch. The
slower percolation rate of the test in the borrow pit and at the construction
site shall be used for design purposes. A revised design shall be submitted
for review if the post-fill stabilized percolation rate dictates a larger
absorption area.
F. A peripheral strip shall be constructed consisting of
topsoil and twenty- to forty-percent clay stabilized in six-inch lifts and
tapered off at a slope of one vertical to a maximum of three horizontal for
a minimum distance of 20 feet beyond the extremities of the absorption field
trenches.
G. Each subdivision plan and each sewage disposal system
design shall show a reserve area equal to 100% of the size of the proposed
raised system to be reserved for the construction of an additional system
in the event of failure of the primary system. Percolation and deep hole tests
shall be performed within the proposed reserve area to verify acceptability.
[Added 7-11-1991 by L.L. No. 9-1991;
amended 5-13-1997 by L.L. No. 3-1997]
Mound systems, as defined and outlined in Appendix 75A of Wastewater Treatment, Individual Household Systems, as allowed for under Public Health Law § 201, Subdivision 1(1), will be allowed in the Town of Mamakating subject to the review and approval of the New York State Department of Health (for new mound systems) and review and approval of the Town of Mamakating Town Engineer and the payment of the fees as provided in §
155-3.3 (for replacement mound systems). All mound systems must comply with all requirements outlined in Appendix 75A as attached. However, in addition to the requirements of Appendix 75A, the
Town of Mamakating establishes the following requirements:
A. The new or replacement mound system shall be designed
and submitted by a professional engineer licensed in the State of New York.
In the case of a new mound system, the engineer shall certify to the New York
State Department of Health (NYSDOH) and the Town that the site soil evaluation
and the plans meet the minimum requirements of these standards. Construction
must be supervised by the engineer who designed the system, and certification
of construction in conformance with the approved plans shall be provided by
such engineer to NYSDOH and the Town prior to a certificate of occupancy being
issued. In the case of a replacement mound system, the engineer shall certify
to the Town of Mamakating, through the Town Engineer, that the site soil evaluation
and the plans meet the minimum requirements of these standards. Construction
must be supervised by the engineer who designed the system, and certification
of construction in conformance with the approved plans shall be provided by
such engineer to the Town, through the Town Engineer, prior to a certificate
of occupancy being issued.
B. Two percolation tests and a deep hole test shall be performed
on the native soil within the limits of the proposed mound system. The percolation
rate of the soil shall be faster than 120 minutes per inch. In the event of
a new mound system, the results of the percolation tests and the deep hole
test shall be submitted to the Town and NYSDOH to review along with the design
of the new mound system. In the case of a replacement mound system, the results
of the percolation tests and the deep hole test shall be submitted to the
Town, through the Town Engineer, for review along with the design of the replacement
system.
C. A sieve analysis of the proposed borrow matter and the
actual material installed on the site shall be provided to the Town and shall
conform to Appendix 75A.9(1)(c)(3.iii).
D. Mound systems may not be constructed on natural site
slopes greater than 10%.
E. A peripheral strip shall be constructed consisting of
topsoil and twenty- to forty-percent clay stabilized in six-inch lifts and
tapered off at a slope of one vertical to three horizontal for a distance
of 20 feet beyond the extremities of the absorption bed.
F. Each subdivision plan and each sewage disposal system
design shall show a reserve area equal to 100% of the size of the proposed
mound system to be reserved for the construction of an additional system in
the event of failure of the primary system. Percolation and deep hole tests
shall be performed within the proposed reserve area to verify acceptability.
[Added 7-11-1991 by L.L. No. 9-1991]
Alternative and other systems not expressly noted above but discussed
in Appendix 75A may be considered on a case-by-case basis.
[Added 5-13-1997 by L.L. No. 3-1997]
Upon the submission of the design plans of a replacement raised system or a replacement mound system as set forth in §
155-3 or
155-3.1, respectively, or other replacement system considered and approved pursuant to §
155-3.2 of this article, the applicant who seeks approval of such design plans shall:
A. In the event that the replacement raised system or replacement mound system or other replacement system considered and approved pursuant to §
155-3.2 is to be installed for use in connection with a one- or two-family residence on a single tax parcel in the Town, pay a fee of $150 to compensate the Town for the expense of the Town Engineer to review the same; and
B. In the event that the replacement raised system or replacement mound system or other replacement system considered and approved pursuant to §
155-3.2 is installed for use in connection with any other structure, sign a statement on a form to be provided by the Town agreeing to pay the reasonable costs of the Town Engineer incurred in connection with his review of the design and his other responsibilities as required by §
155-3,
155-3.1 and/or
155-3.2 of this article.
[Adopted 10-4-1990 by L.L. No. 7-1990]
All new septic systems in the Town of Mamakating will require a permit
from the Building Department. Each application for a septic permit will be
accompanied by a septic design from an engineer licensed to practice in New
York State.
The same requirement will hold true for an existing septic system where
application is made to the Building Inspector for an alteration or addition
to real property which includes the addition of any bedrooms.