A.
Every applicant shall file an application with the Township Engineer.
Such application shall:
(1)
Describe the land on which the proposed work is to be done, by lot,
block, tract, or street address, or similar description which will
readily identify and definitively locate the proposed work.
(2)
Be accompanied by three copies of plans, narrative and specifications
prepared by a registered professional engineer or registered professional
land surveyor qualified in hydrology. Such plans and specifications
shall include the following:
(a)
Date, name, professional seal, and address of the preparer(s)
of the plan for each portion thereof.
(b)
Name and address of the owner of the site.
(c)
Lot, block, tract or street address, tax parcel number with
deed book and page number, or similar description which identifies
and locates the proposed work.
(d)
Purpose of the earth disturbance.
(e)
A complete outline survey of the affected property showing all
courses, distances and area, and boundaries of all adjoining properties
with tax parcel number and name of landowner.
(f)
Types, depth and aerial extent of predominant soils on the property.
(g)
Location map.
(h)
North arrow.
(i)
Written and graphic scales, including scale of location map.
(j)
Streets on and adjacent to the site with legal and ultimate
rights-of-way, cartway widths and any existing easements.
(k)
Existing contours and proposed finished grades measured at vertical
intervals of no less than two feet.
(l)
A delineation of the limits of work and the areas to remain
undisturbed, along with a statement, in square feet, of the total
site area and the disturbed area and all steep slope, floodplain areas
and Riparian Corridor Conservation Districts as defined in the Whitemarsh
Township Zoning Ordinance.
(m)
A delineation of areas reserved for proposed fill.
(n)
Established street grades (elevation). For plans prepared in
conjunction with preliminary subdivision and land development plans,
tentative street grades may be utilized.
(o)
Size, location and construction details of all existing and
proposed impervious ground cover, including but not limited to structures,
streets, parking areas and sidewalks.
(p)
Size, location and construction details of all existing and
proposed storm drainage facilities.
(q)
Estimated development schedule for the site.
(r)
The locations of existing and proposed on-lot wastewater facilities
and water supply wells.
(s)
The following signature block for the municipality:
"(Design Engineer), on this date (Signature, date), has reviewed and hereby certifies that the stormwater management site plan meets all design standards and criteria of Chapter 58, "Grading, Erosion Control, Stormwater Management and Best Management Practices"."
(t)
A statement, signed by the landowner, acknowledging that the
stormwater BMPs are fixtures that can be altered or removed only after
approval by the Township.
(3)
Include a determination of site conditions in accordance with the
BMP Manual. A detailed site evaluation shall be completed for projects
proposed in areas of carbonate geology or karst topography, and other
environmentally sensitive areas, such as brownfields.
(4)
Include stormwater runoff design computations and documentation as specified in this chapter, or as otherwise necessary to demonstrate that the maximum practicable measures have been taken to meet the requirements of this chapter, including the recommendations and general requirements in § 58-12.
(5)
Include a soil erosion and sediment control plan.
(6)
Describe the effect of the project (in terms of runoff volumes, water
quality, and peak flows) on surrounding properties and aquatic features
and on any existing stormwater conveyance system that may be affected
by the project.
(7)
Include plan and profile drawings of all stormwater management BMPs,
including drainage structures, pipes, open channels, and swales.
(8)
Include provisions for permanent access or maintenance easements for all physical stormwater management BMPs, such as ponds and infiltration structures, as necessary to implement the operation and maintenance (O&M) plan discussed in Subsection A(9) below.
(9)
The stormwater management site plan shall include an O&M plan
for all existing and proposed physical stormwater management facilities.
This plan shall address long-term ownership and responsibilities for
O&M as well as schedules and costs for O&M activities.
(10)
A justification must be included in the stormwater management
site plan if BMPs other than green infrastructure methods and LID
practices are proposed to achieve the volume, rate and water quality
controls under this chapter.
(12)
Appropriate sections from the Township's Subdivision and
Land Development Ordinance, and other applicable local ordinances,
shall be followed in preparing the stormwater management site plans.
(13)
The Township Engineer may waive the requirements for any and
all plans and specifications listed above if they find that the information
on the application is sufficient to show that the work contemplated
will conform to the provisions of this chapter.
A.
A minimum of three copies of plans, narrative and specifications
shall be submitted to the Township. Additional copies may be required
where applicable as follows:
(1)
Additional copies to the Township, as may be required by Chapter 105, "Subdivision and Land Development."
(2)
Additional copies as may be required by the County Conservation District.
The Township Engineer may require a review by the Montgomery County
Soil Conservation District of any plans for earth disturbance activity
involving less than one acre. In all other instances where the extent
of proposed earth disturbance activity is one acre or more, the applicant
must obtain the following:
(3)
Additional copies as may be required to the County Planning Commission/Office.
A.
Stormwater management site plans shall be reviewed by the Township
for consistency with the provisions of this chapter.
B.
Application review period.
(1)
The Township Engineer shall review all minor earth disturbance permit applications, submitted as required by § 58-13 of this chapter, and take final action within 30 days of a determination that the application is complete. If the Township Engineer determines that the minor earth disturbance permit application does not comply with this chapter, they shall advise applicant in writing of the deficiencies. All necessary revisions shall be made by the applicant and the application shall be resubmitted to the Township Engineer.
(2)
The Township Engineer shall review any revised minor earth disturbance
permit application within 15 days after submission and shall take
action on approving or disapproving the revised application. If the
application does not comply with the standards of this chapter, the
application may be denied by the Township Engineer in accordance with
the provisions herein.
(3)
The review of minor earth disturbance permit applications submitted in conjunction with subdivision and land development plans shall be performed by the Township Engineer in accordance with the provisions of § 58-19C herein.
(4)
If the stormwater management site plan involves a subdivision and
land development plan, the notification shall occur within the time
period allowed by the Municipalities Planning Code. If a longer notification
period is provided by other statute, regulation, or ordinance, the
applicant will be so notified by the Township.
C.
Requirements for subdivision and land development.
(1)
The approval of plans and specifications for grading, the control
of erosion and sedimentation, stormwater management, and BMPs shall
be concurrent with the approval of the final plans submitted in conjunction
with subdivision and/or land development applications and shall become
a part thereof.
(2)
Final plans for minimizing erosion and sedimentation and for providing stormwater management control, as approved, shall be incorporated into the improvements agreement and financial security requirements, as required in Chapter 105 of Whitemarsh Township Code, entitled "Subdivision and Land Development."
(3)
At the time a building permit is filed in conjunction with a subdivision
and/or land development project, a review shall be conducted by the
Township Engineer to ensure conformance with the grading plan, as
approved. During the construction, further consultative technical
assistance shall be furnished as required by the Township Engineer
and the Montgomery County Conservation District.
D.
Special requirements for agricultural uses.
(1)
All agricultural operations shall conform to the following principles
and standards:
(a)
Farming operations shall be performed to minimize erosion of
silt areas where damage to streams or adjacent properties will result.
(b)
Drainage swales shall be maintained with permanent cover of
grasses, plants, or trees.
(c)
Permanent coverage shall be maintained within a minimum of 20
feet of a stream and for 10 feet upslope from property lines, unless
a written waiver is received from the abutting landowner.
(d)
Runoff from buildings and other impervious surfaces shall be
directed around areas where sod or plants are regularly removed, where
livestock is confined, or where tillage crops are planted, or shall
be otherwise controlled to prevent direct transport of pollutants
(including sediments) to streams.
(e)
Diversion terraces or cover crops not less than 10 feet in width
shall be provided to a maximum of 200-foot intervals on slopes of
8% to 15% where tillage or sod crops are planted.
(f)
A vegetative cover strip extending eight feet from the edge
of the cartway of any road shall be permanently maintained.
E.
For any stormwater management site plan that proposes to use any
BMPs other than green infrastructure and LID practices to achieve
the volume and rate controls required under this chapter, the Township
will not approve the stormwater management site plan unless it determines
that green infrastructure and LID practices are not practicable.
F.
If the Township disapproves the stormwater management site plan,
the Township will state the reasons for the disapproval in writing.
The Township also may approve the stormwater management site plan
with conditions and, if so, shall provide the acceptable conditions
for approval in writing.
A modification to a submitted stormwater management site plan
that involves a change in stormwater management BMPs or techniques,
or that involves the relocation or redesign of stormwater management
BMPs, or that is necessary because soil or other conditions are not
as stated on the stormwater management site plan as determined by
the Township shall require a resubmission of the modified stormwater
management site plan in accordance with this article.
A disapproved stormwater management site plan may be resubmitted,
with the revisions addressing the Township's concerns, to the
Township in accordance with this article. The applicable review fee
must accompany a resubmission of a disapproved stormwater management
site plan.
A.
Every minor earth disturbance permit shall expire and become null
and void if the work authorized by such permit has not been commenced
within six months or is not completed within one year from the date
of issue, provided that the Township Engineer may, if the permit holder
presents satisfactory evidence that unusual circumstances have prevented
work being started or completed within the specified time limits,
grant reasonable extensions of time, and provided that the application
for extension of time is made before the date of expiration of the
permit.
B.
The Township's approval of an stormwater management site plan not associated with a minor earth disturbance permit authorizes the regulated activities contained in the stormwater management site plan for a maximum term of validity of five years following the date of approval. The Township may specify a term of validity shorter than five years in the approval for any specific stormwater management site plan. Terms of validity shall commence on the date the Township signs the approval for a stormwater management site plan. If an approved stormwater management site plan is not completed according to § 58-23 within the term of validity, then the Township may consider the stormwater management site plan disapproved and may revoke any and all permits. Stormwater management site plans that are considered disapproved by the Township shall be resubmitted in accordance with § 58-21 of this chapter.
A.
The developer shall be responsible for providing as-built plans in
paper and digital (dwg) format of all stormwater management BMPs included
in the approved stormwater management site plan. The as-built plans
and an explanation of any discrepancies with the construction plans
shall be submitted to the Township.
B.
The as-built submission shall include a certification of completion
signed by a qualified professional verifying that all permanent stormwater
management BMPs have been constructed according to the approved plans
and specifications. The latitude and longitude coordinates for all
permanent stormwater management BMPs must also be submitted, at the
central location of the BMPs. If any licensed qualified professionals
contributed to the construction plans, then a licensed qualified professional
must sign the completion certificate.
C.
After receipt of the completion certification by the Township, the
Township may conduct a final inspection.
