§ 190-215 § 190-215
(6)
All temporary erosion and sediment control measures shall be
removed after final site stabilization. Trapped sediment and
other disturbed soil areas resulting from the removal of
temporary measures shall be permanently stabilized within
30 days.
I. Stormwater management measures.
(1)
(2)
(3)
(4)
J.
Structural stormwater management measures to achieve
recharge, water quality, and peak discharge control shall be
structural BMPs designed in accordance with the
requirements of the following:
(a) New Hampshire Stormwater Manual, Volumes 1 through
3. [Amended 6-26-2018 by Ord. No. O-18-015]
(b) Best Management Practices for Urban Stormwater
Runoff, published by NH DES, 1996, as amended.
(c) Innovative Stormwater Treatment Technologies Best
Management Practices Manual, published by NH DES,
May 2002, as amended [Reference:
http://www.des.state.nh.us/wmb/was/manual/]
The performance criteria specified in the Design Manual with
regard to general feasibility, conveyance, pretreatment,
environment and landscaping, and maintenance shall be
considered in the selection of a structural BMP.
Structural stormwater management practices shall be
selected to accommodate the unique hydrologic and geologic
conditions of the site. Design computations must document
these conditions.
Nonstructural management measures may reduce or
eliminate the need for structural BMPs to meet recharge,
water quality, and peak discharge control requirements.
These techniques shall include runoff prevention methods
(RPMs), are encouraged and shall be designed in accordance
with the guidelines in the documents listed in Subsection I(1)
above. These techniques may include disconnection of
rooftop and nonrooftop runoff, vegetated bio-cells and bio-
islands, infiltration edges, dividers, or islands, planters, and
raingardens.
Allowable nonstormwater discharges. The following
nonstormwater discharges are authorized, provided it has been
determined that they are not significant contributors of pollutants
:8
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Hic it Discharge Detection and Eimination Plan
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