[Ord. 2010-10, 10/4/2010, § 401]
No person shall commence any regulated activity or any earth
disturbance activity until the applicant has received written approval
of a drainage plan and the Township has issued a drainage permit.
No person shall receive unconditional approval of a subdivision and/or
land development plan or the issuance of any building or occupancy
permit until the applicant has received written approval of a drainage
plan from the Township and an adequate erosion and sediment control
plan review by the Conservation District.
[Ord. 2010-10, 10/4/2010, § 402]
1.
Exemptions. The following land use activities are exempt from the
drainage plan submission requirements of this chapter:
A.
Use of land for gardening for home consumption.
B.
Agriculture when operated in accordance with a conservation plan
or erosion and sediment control plan found adequate by the Conservation
District.
C.
Forest management operations which are following the DEP management practices contained in its publication "Soil Erosion and Sedimentation (E&S) Control Guidelines for Forestry" and are operating under an approved erosion and sedimentation control plan. Forest management operations shall comply with stream buffer requirements in § 23-303 and floodplain management requirements.
D.
Impervious Surface. Any regulated activity that proposes less than
5,000 square foot of new impervious surface and/or meets the following
exemption criteria is exempt from the plan submittal provisions of
this chapter. These criteria shall apply to the total property development
even if development is to take place in phases. Impervious areas existing
on the property prior to date set forth in the definition of property
shall not be considered in cumulative impervious area calculations
for exemption purposes.
2.
Additional exemption criteria includes:
A.
Exemption Responsibilities. An exemption shall not relieve the applicant
from implementing such measures as are necessary to protect the public
health, safety, and property. An exemption shall not relieve the applicant
from providing adequate stormwater management for regulated activities
to meet the purpose of this chapter; however, drainage plans will
not have to be submitted to the Township.
B.
This exemption shall not relieve the applicant from meeting the special requirements for watersheds draining to exceptional value (EV) waters and source water protection areas (SWPA): requirements for nonstructural project design sequencing (§ 23-302) water quality and streambank erosion (§ 23-303), and groundwater recharge (§ 23-304).
C.
Drainage Problems. If a drainage problem is documented or known to
exist downstream of, or expected from the proposed activity, then
the Township may require a drainage plan submittal.
3.
If a residential or non residential subdivision or land development
plan meets the exemption criteria requirements, the property area
and impervious surface area shall be provided on the plan.
[Ord. 2010-10, 10/4/2010, § 403]
1.
The drainage plan shall consist of a general description of the project including sequencing items described in § 23-302, calculations, maps, and plans. A note on the maps shall refer to the associated computations and erosion and sediment control plan by title and date. The cover sheet of the computations and erosion and sediment control plan shall refer to the associated maps by title and date. All drainage plan materials shall be submitted to the Township in a format that is clear, concise, legible, neat, and well organized; otherwise, the drainage plan shall not be accepted for review and shall be returned to the applicant.
2.
The following items shall be included in the drainage plan:
A.
General.
(2)
General description of permanent stormwater management techniques,
including construction specifications of the materials to be used
for stormwater management facilities.
(3)
Complete hydrologic, hydraulic, and structural computations
for all stormwater management facilities.
(4)
An erosion and sediment control plan, including all reviews
and letters of adequacy obtained by the Conservation District.
(5)
A general description of nonpoint source pollution controls.
B.
Maps. Map(s) of the project area shall be submitted on twenty-four-inch by thirty-six-inch sheets and/or shall be prepared in a form that meets the requirements for recording at the offices of the Recorder of Deeds of Monroe County. If the SALDO [Chapter 22] has more stringent criteria then the more stringent criteria shall apply. The contents of the map(s) shall include, but not be limited to:
(1)
The location of the project relative to highways, municipalities
or other identifiable landmarks.
(2)
Existing and final contours at intervals of two feet. In areas
of steep slopes (greater than 15%), five-foot contour intervals may
be used.
(3)
Existing streams, lakes, ponds, wetlands or other Waters of
the commonwealth within the development site.
(4)
Other physical features including flood hazard boundaries, buffers,
existing drainage courses, areas of natural vegetation to be preserved,
and the total extent of the upstream area draining through the site.
(5)
The locations of all existing and proposed utilities, sanitary
sewers, and water lines within 50 feet of property lines.
(6)
The location(s) of public water supply wells and surface water
intakes as well as their source water protection areas.
(7)
Soil names, boundaries, hydrologic group, and limitations.
(8)
Limits of earth disturbance, including the type and amount of
impervious area that would be added.
(9)
Proposed structures, roads, paved areas, and buildings.
(10)
The name of the development, the name and address of the applicant,
the address of the property, and the name and address of the individual
or firm preparing the drainage plan.
(11)
The date of submission.
(12)
A graphic and written scale of one inch equals no more than
50 feet; for tracts of 20 acres or more, the scale shall be one inch
equals no more than 100 feet.
(13)
A north arrow.
(14)
The total property and, if different, development site boundary
and size with distances marked to the nearest foot and bearings to
the nearest degree.
(15)
Existing and proposed land use(s).
(16)
A key map showing all existing man-made features beyond the
development site boundary that would he affected by the project.
(17)
Location of all open channels.
(18)
Overland drainage patterns and swales.
(19)
A fifteen-foot wide access easement to and around all stormwater
management facilities that would provide ingress to and egress from
a public right-of-way.
(20)
The location of all erosion and sediment control facilities.
(21)
A note on the plan indicating the location and responsibility
for maintenance of stormwater management facilities that would be
located off-site. All off-site facilities shall meet the performance
standards and design criteria specified in this chapter.
(22)
A statement, signed by the applicant, acknowledging that any
revision to the approved drainage plan must be approved by the Township
and that a revised erosion and sediment control plan must be submitted
to the Conservation District for a determination of adequacy.
(23)
The following signature block for the design professional:
"I, (design professional), on this date (date of signature),
hereby certify that the drainage plan meets all design standards and
criteria of the [name of applicable Act 167 Plan] and Stroud Township
Stormwater Management Ordinance."
C.
Supplemental Information.
(1)
A written description of the following information shall be
submitted:
(2)
An erosion and sediment control plan.
(3)
The effect of the project (in terms of runoff volumes and peak
flows) on adjacent properties and on any existing municipal stormwater
collection system that may receive runoff from the project site.
(4)
A Declaration of Adequacy and Highway Occupancy Permit from
the PennDOT District Office when utilization of a PennDOT storm drainage
system is proposed.
D.
Stormwater Management Facilities.
(1)
All stormwater management facilities must be located on a plan
and described in detail.
(2)
When groundwater recharge methods such as seepage pits, beds
or trenches are used, the locations of existing and proposed septic
tank infiltration areas and wells must be shown.
(3)
Isolation distances from wells, buildings, septic systems, as
noted in the Pennsylvania Stormwater Best Management Practices Manual.
(4)
All calculations, assumptions, and criteria used in the design
of the stormwater management facilities must be shown.
[Ord. 2010-10, 10/4/2010, § 404]
1.
The applicant shall submit a complete drainage plan application,
with all required plans and supplemental materials, as specified in
this chapter. No application is complete without the required fee.
2.
For any activities that require an NPDES permit for stormwater discharges from construction activities, or a DEP joint permit application, or a PennDOT Highway Occupancy Permit, or any other permit under applicable state or federal regulations, or are regulated under 25 Pa. Code, Chapter 105 or Chapter 106, the proof of application for said permit(s) or approvals shall be part of the drainage plan application. The application shall be coordinated with the state and federal permit process and the SALDO [Chapter 22] review process.
A.
For those regulated activities which require SALDO [Chapter 22] approval, the drainage plan and ERSAM shall be submitted by the applicant as part of the preliminary plan submission.
D.
Any submissions found incomplete shall not be accepted for review
and shall be returned to the applicant with a notification in writing
of the specific manner in which the submission is incomplete.
[Ord. 2010-10, 10/4/2010, § 405]
1.
The Township Engineer shall review the drainage plan for consistency
with the applicable Act 167 Plan and this chapter.
2.
The Township Engineer shall review the drainage plan for any subdivision or land development against the SALDO [Chapter 22] provisions not superseded by this chapter.
3.
The erosion and sediment control plan shall be forwarded to the Conservation
District for review. The Township shall not unconditionally approve
a drainage plan until the applicant presents evidence that the Conservation
District has found the erosion and sediment control plan adequate
to meet the requirements of 25 Pa. Code, Chapter 102.
4.
For regulated activities specified in § 23-104 of this chapter, the Township Engineer shall provide the Township with a written review of the drainage plan.
A.
Should the drainage plan be determined to be consistent with the
applicable Act 167 Plan and this chapter, the Township Engineer will
forward a letter of consistency to the Township Planning Administrator,
who will then notify the applicant.
B.
Should the drainage plan be determined to be inconsistent or noncompliant
with the applicable Act 167 Plan and/or this chapter, the Township
Engineer shall forward a letter to the Township Planning Administrator
with a copy to the applicant citing the reason(s) and specific chapter
sections for the inconsistency or noncompliance. Inconsistency or
noncompliance may be due to inadequate information to make a reasonable
judgment as to compliance with the applicable Act 167 Plan and this
chapter. Any drainage plans that are inconsistent or noncompliant
may be revised by the applicant and resubmitted consistent with this
chapter. Any disapproved drainage plans may be revised by the applicant
and resubmitted consistent with this chapter.
5.
For regulated activities specified in § 23-104 of this chapter, which require a building permit, the Township Engineer shall notify the Enforcement Officer in writing, whether the drainage plan is consistent with the applicable Act 167 Plan and this chapter and forward a copy of the approval/disapproval letter to the applicant. Any disapproved drainage plan may be revised by the applicant and resubmitted consistent with this chapter.
6.
For regulated activities specified in § 23-104 of this chapter that require an NPDES permit application, the applicant shall forward a copy of the Township Engineer's letter stating that the drainage plan is consistent with the applicable Act 167 Plan and this chapter to the Conservation District.
7.
The Township shall not grant unconditional approval or grant unconditional preliminary approval to any subdivision or land development for regulated activities specified in § 23-104 of this chapter if the drainage plan has been found to be inconsistent with the applicable Act 167 Plan and this chapter, as determined by the Township Engineer. All required permits from DEP must be obtained prior to unconditional approval of any drainage plan or any subdivision or land development plan.
8.
The Township shall not issue any permits for any regulated activity specified in § 23-104 of this chapter if the drainage plan has been found to be inconsistent with the applicable Act 167 Plan or this chapter, as determined by the Township Engineer. All required permits from DEP must be obtained prior to issuance of a building permit.
9.
The applicant shall be responsible for completing record drawings
of all stormwater management facilities included in the approved drainage
plan. The record drawings and an explanation of any discrepancies
with the approved drainage plan shall be submitted to the Township
Engineer for final approval. In no case shall the Township approve
the record drawings until the Township receives a copy of an approved
Declaration of Adequacy and/or Highway Occupancy Permit from the PennDOT
District Office, NPDES permit, and any applicable permits or approvals,
from DEP or the Conservation District. The above permits and approvals
must be based on the record drawings.
10.
The Township's approval of a drainage plan shall be valid for a period not to exceed five years commencing on the date that the Township signs the approved drainage plan. If stormwater management facilities included in the approved drainage plan have not been constructed, or if constructed, and record drawings of these stormwater management facilities have not been approved within this five-year time period, then the Township may consider the drainage plan disapproved and may revoke any and all permits. Drainage plans that are considered disapproved by the Township shall be resubmitted in accordance with § 23-407 of this chapter.
[Ord. 2010-10, 10/4/2010, § 406]
1.
Any modification to an approved drainage plan that involves a change in stormwater management facilities or techniques, or that involves the relocation or redesign of stormwater management facilities, or that is necessary because soil or other conditions are not as stated on the drainage plan, as determined by the Township Engineer, shall require a resubmission of the modified drainage plan consistent with § 23-404 of this chapter and be subject to review as specified in § 23-405 of this chapter.
2.
A request for a modification to a drainage plan shall be submitted
to the Township, accompanied by the applicable fees.
[Ord. 2010-10, 10/4/2010, § 407]
A disapproved drainage plan may be resubmitted, with the revisions addressing the Township Engineer's concerns documented in writing and addressed to the Township Planning Administrator in accordance with § 23-404 of this chapter and distributed accordingly and be subject to review as specified in § 23-405 of this chapter. All applicable fees shall accompany a resubmission of a disapproved drainage plan.
