[Ord. 2007-6, 6/5/2007, § 301]
For any of the activities regulated by this Part, the preliminary
or final approval of subdivision and/or land development plans, the
issuance of any building or occupancy permit, or the commencement
of any earth disturbance activity may not proceed until the property
owner or applicant or his/her agent has received written approval
of a drainage plan from the Township, obtained an NPDES permit for
stormwater discharges associated with construction activities, if
greater than one acre of land disturbance, from the local Conservation
District and/or DEP, and an adequate erosion and sediment control
plan review by the Conservation District.
[Ord. 2007-6, 6/5/2007, § 302]
1. The drainage plan shall consist of a general description of the project including sequencing items described in §
23-234, 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, erosion and sediment control plan, and post-construction stormwater management (PCSWM) 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. The following items shall be included in the drainage plan:
A. General.
(1)
General description of the project including those areas described in §
23-234, Subsection
2.
(2)
General description of proposed 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 from the Conservation District.
(5)
A general description of proposed nonpoint source pollution
controls.
(6)
The drainage plan application and completed fee schedule form
and associated fee (Appendix 23-2-C-1).
(7)
The drainage plan checklist (Appendix 23-2-C-2).
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 Berks County. If the SALDO [Chapter
22] has more stringent criteria than this Part, 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, Township boundaries,
or other identifiable landmarks.
(2)
Existing contours at intervals of two feet. In areas of slopes
greater than 15%, five-foot contour intervals may be used.
(3)
Existing streams, lakes, ponds, or other waters of the commonwealth
within the project area.
(4)
Other physical features including flood hazard boundaries, stream
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)
An overlay showing soil names, boundaries and limitations (in
tabular format).
(7)
Limits of earth disturbance, including the type and amount of
impervious area that would be added.
(8)
Proposed structures, roads, paved areas, and buildings.
(9)
Final contours at intervals of two feet. In areas of steep slopes
(greater than 15%), five-foot contour intervals may be used.
(10)
The name of the development, the name and address of the owner
of the property, and the name of the individual or firm preparing
the plan.
(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.
(14)
The total tract 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
property boundary that would be affected by the project.
(17)
Location of all open channels, as well as indicating where they
are draining after they leave the site (storm sewer, defined drainage
swale, stream channel, waters of the commonwealth, etc.).
(18)
Overland drainage patterns and swales.
(19)
A fifteen-foot wide access easement 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
and all post-construction stormwater management facilities, BMPs,
systems, etc.
(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 Part.
(22)
A statement, signed by the applicant, acknowledging that any
revision to the approved post-construction stormwater management plan
must be approved by the Township and the Conservation District and/or
DEP (if greater than one acre of land disturbance), 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 engineer:
"I, (Design Engineer), on this date (date of signature), hereby
certify that the drainage plan meets all design standards and criteria
of Douglass Township Stormwater Management Ordinance."
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C. Supplemental Information to Be Submitted to the Township.
(1)
A written description of the following information shall be
submitted by the applicant and shall include:
(a)
The overall stormwater management concept for the project designed in accordance with §
23-234.
(b)
Stormwater runoff computations as specified in this Part.
(c)
Stormwater management techniques to be applied both during and
after development.
(d)
Expected project time schedule.
(e)
Development stages or project phases, if so proposed.
(f)
An operations and maintenance plan in accordance with §
23-262 of this Part.
(2)
An erosion and sediment control plan.
(3)
A description of the effect of the project (in terms of runoff
volumes and peak flows) on adjacent properties and on any existing
Township stormwater collection system that may receive runoff from
the project site.
(4)
A declaration of adequacy and highway occupancy permit from
the Pennsylvania Department of Transportation (PennDOT) District office
when utilization of a PennDOT storm drainage system is proposed.
D. Stormwater Management Facilities.
(1)
All PCSWM BMP facilities must be located on a plan and described
in detail. The PCSWM plan package should include at a minimum pre-
and post-drainage area plans, an overall PCSWM plan, PCSWM details
sheets, landscaping or conservation plans, etc.
(2)
When infiltration measures such as seepage pits, beds, or trenches
are used, the locations of existing and proposed septic tank, infiltration
areas and wells must be shown. Minimum setback distances should be
identified from water supply wells, septic areas, and any adjacent
or down gradient buildings and/or structures with below grade floors
or inhabitable space.
(3)
All calculations, assumptions, and criteria used in the design
of the stormwater management facilities must be shown.
[Ord. 2007-6, 6/5/2007, § 303]
1. The Township shall require receipt of a complete drainage plan, as
specified in this Part.
A. Proof of application or documentation of required permit(s) or approvals
for the programs listed below shall be part of the plan:
(1)
NPDES permit for stormwater discharges from construction activities.
(2)
DEP joint permit application.
(3)
PennDOT highway occupancy permit.
(4)
25 Pa. Code, Chapter 105 (Dam Safety and Waterway Management).
(5)
25 Pa. Code, Chapter 106 (Floodplain Management).
(6)
Any other permit under applicable state or federal regulations.
B. The plan shall be coordinated with the state and federal permit process
and the Township SALDO review process.
C. For projects that require SALDO approval, the drainage plan shall
be submitted by the applicant as part of the preliminary plan submission
where applicable for the regulated activity.
D. For regulated activities that do not require SALDO approval, see §
23-221, "General Requirements."
E. Six copies of the drainage plan shall be submitted and distributed
as follows:
(1)
Two copies to the Township accompanied by the requisite Township
review fee, as specified in this Part.
(2)
Two copies to the County Conservation District.
(3)
One copy to the Township Engineer.
(4)
One copy to the County Planning Commission/Department.
F. Any submissions to the agencies listed above that are found to be
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. 2007-6, 6/5/2007, § 304]
1. The Township Engineer shall review the drainage plan for consistency
with this Part and the respective Act 167 Stormwater Management Plan.
Any found incomplete shall not be accepted for review and shall be
returned to the applicant.
2. The Township Engineer shall review the drainage plan for any subdivision
or land development against the Township SALDO provisions not otherwise
superseded by this Part.
3. The Conservation District, in accordance with established criteria
and procedures, shall review the drainage plan for consistency with
stormwater management and erosion and sediment pollution control requirements
and provide comments to the Township. Such comments shall be considered
by the Township prior to final approval of the drainage plan.
4. For activities regulated by this Part, the Township Engineer shall
notify the applicant and the Township in writing, within 30 calendar
days, whether the drainage plan is consistent with the Act 167 Stormwater
Management Plan.
A. If the Township Engineer determines that the drainage plan is consistent
with the Act 167 Stormwater Management Plan, the Township Engineer
shall forward a letter of consistency to the Township Secretary who
will then forward a copy to the applicant.
B. If the Township Engineer determines that the drainage plan is inconsistent
or noncompliant with the Act 167 Stormwater Management Plan, the Township
Engineer shall forward a letter to the Township Secretary with a copy
to the applicant citing the reason(s) and specific Sections of this
Part for the inconsistency or noncompliance. Inconsistency or noncompliance
may be due to inadequate information to make a reasonable judgment
as to compliance with the Act 167 Stormwater Management Plan. Any
drainage plans that are inconsistent or noncompliant may be revised
by the applicant and resubmitted when consistent with this Part. The
Township Secretary shall then notify the applicant of the Township
Engineer's findings. Any inconsistent or noncompliant drainage
plans may be revised by the applicant and resubmitted consistent with
this Part.
5. For regulated activities specified in §
23-205 of this Part that require a building permit, the Township Engineer shall notify the Township Building Permit Officer in writing, within a time frame consistent with the Township Building Code [Chapter
5, Part
1] and/or Township SALDO [Chapter
22], whether the drainage plan is consistent with the Act 167 Stormwater Management Plan. The Township Building Permit Officer shall forward a copy of the consistency/inconsistency letter to the applicant. Any drainage plan deemed inconsistent may be revised by the applicant and resubmitted consistent with this Part.
6. For regulated activities under this Part 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 Act 167
Stormwater Management Plan to the Conservation District and/or DEP.
In addition, a short summary of the proposed post-construction stormwater
management design and proposed BMPs should also be forwarded to the
Conservation District and/or DEP. DEP and the Conservation District
may consider the Township Engineer's review comments in determining
whether to issue a permit.
7. The Township shall not grant preliminary or final approval to any subdivision or land development for regulated activities specified in §
23-205 of this Part if the drainage plan has been found by the Township Engineer to be inconsistent with the Act 167 Stormwater Management Plan. All required permits from DEP must be obtained prior to approval of any subdivision or land development.
8. No building permits for any regulated activity specified in §
23-205 of this Part shall be approved by the Township if the drainage plan has been found to be inconsistent with the Act 167 Stormwater Management Plan, as determined by the Township Engineer and Conservation District, or without considering the comments of the Township Engineer and Conservation District. 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 design plans 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 other 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, record drawings of these facilities have not been approved within this five-year time period, then the Township may consider the drainage plan inconsistent or noncompliant and may revoke any and all permits. Drainage plans that are determined to be inconsistent or noncompliant by the Township shall be resubmitted in accordance with §
23-226 of this Part.
[Ord. 2007-6, 6/5/2007, § 305]
1. A modification to a submitted drainage plan under review by the Township for a development site that involves the following shall require a resubmission to the Township of a modified drainage plan consistent with §
23-223 of this Part and be subject to review as specified in §
23-224 of this Part:
A. Change in stormwater management facilities or techniques.
B. Relocation or redesign of stormwater management facilities.
C. Is necessary because soil or other conditions are not as stated on
the drainage plan as determined by the Township Engineer.
2. A modification to an already approved or inconsistent or noncompliant
drainage plan shall be submitted to the Township, accompanied by the
applicable Township review and inspection fee. A modification to a
drainage plan for which a formal action has not been taken by the
Township shall be submitted to the Township accompanied by the applicable
Township review and inspection fee.
[Ord. 2007-6, 6/5/2007, § 306]
An inconsistent or noncompliant drainage plan may be resubmitted with the revisions addressing the Township Engineer's concerns documented in writing. It must be addressed to the Township Secretary in accordance with §
23-223 of this Part, distributed accordingly, and be subject to review as specified in §
23-224 of this Part. The applicable Township review and inspection fee must accompany a resubmission of an inconsistent or noncompliant drainage plan.