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§ 52.050 SMALL PROJECT APPLICATION (< 5,000 SQ. FT. OF IMPERVIOUS AREA).
   (A)   This section applies to eligible projects with total impervious surface area from 1,000 square feet to less than 5,000 square feet.
   (B)   If the total impervious surface area is 2,500 square feet to 5,000 square feet the project requires a small project application to be submitted to the borough and volume controls must be installed to meet the requirements of the surface area of BMPs required.
   (C)   For areas where runoff from impervious areas can be directed to pervious areas that allow for infiltration, filtration and increased time of concentration disconnected impervious area (DIA) credits may be used. To qualify as DIA the concentrated discharge must meet the following criteria:
      (1)   For rooftop areas:
         (a)   Area draining to a downspout must be 500 square feet or less;
         (b)   Discharge must be to an area with a positive slope of 5% (one foot of fall per 20 feet of length, 20:1) or less; and
         (c)   Be a minimum distance of 75 feet from a watercourse or down slope property line.
      (2)   For paved areas (driveways):
         (a)   Runoff draining to a point must be 1,000 square feet or less;
         (b)   Discharge must be to a gravel strip or spreading device; and
         (c)   Flow length of the pervious surface must be greater than or equal to the contributing length.
(1980 Code, Ch. 24, Part 4, § 401) (Ord. 1403, passed 7-18-2011, § 401)
§ 52.051 SWM PLAN (> 5,000 SQ. FT. OF IMPERVIOUS AREA).
   The following items shall be included in the SWM site plan.
   (A)   Appropriate sections from borough’s Subdivision and Land Development Ordinance (Ch. 156), and other applicable local ordinances, shall be followed in preparing the SWM site plans. In instances where the borough lacks subdivision and land development regulations, the content of SWM site plans shall follow the county’s Subdivision and Land Development Ordinance.
   (B)   The developer shall not receive approval of any SWM site plan that is deficient in meeting the requirements of this chapter. When a SWM site plan is found to be deficient, the borough, at its sole discretion and in accordance with this subchapter, may either disapprove the submission, require a resubmission, or in the case of minor deficiencies, the borough may accept submission of modifications.
   (C)   Provisions for permanent access or maintenance easements for all physical SWM BMPS, such as ponds and infiltration structures, as necessary to implement the operation and maintenance procedures discussed in division (E)(14) below.
   (D)   The following signature block for the borough:
 
“The Stormwater Management Site Plan shown hereon complies with all design standards and criteria of the Borough of Grove City Stormwater Management Ord. 1403.”
_________________________________                  ___________________________________
Date                                    Signature
 
   (E)    The SWM site plan shall be black and white and provide the following information, at a minimum:
      (1)   Proposed name or identifying title of the project;
      (2)   Name and address of the landowner and/or developer of the project;
      (3)   Plan date, date of the latest revision, north arrow, graphic and written scale;
      (4)   Project location map overlaid on the title sheet showing the project and the nearest intersecting street;
      (5)   Tract boundaries showing bearings, distances and curve data;
      (6)   Existing and proposed contours at a vertical interval of one foot, unless steeper slopes do not permit the visual representation at this scale;
      (7)   Existing and proposed natural and/or artificial objects thereon;
      (8)   Existing subsurface objects as required by Pennsylvania One Call, as well as proposed subsurface objects;
      (9)   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;
      (10)   A report containing stormwater runoff design calculations, assumptions, criteria, methodology and documentation used in the design to demonstrate that the maximum practicable measures have been taken to meet the requirements of this chapter, including the recommendations and general requirements in § 52.035;
      (11)   A soil erosion and sediment control plan, where applicable, as prepared for and submitted to the approval authority;
      (12)   Plan and profile drawings of all SWM BMPs, including drainage structures and pipes;
      (13)   A plan showing the locations of existing and proposed on-lot wastewater facilities and water supply wells; and
      (14)   Operation and maintenance procedures for all existing and proposed physical stormwater management facilities that shall address long-term ownership and responsibilities for O&M.
(1980 Code, Ch. 24, Part 4, § 402) (Ord. 1403, passed 7-18-2011, § 402)
§ 52.052 PLAN SUBMISSION.
   (A)   Five copies of the SWM site plan shall be submitted as follows:
      (1)   Two copies to borough;
      (2)   One copy to the Municipal Engineer (when applicable);
      (3)   One copy to the County Conservation District (when applicable); and
      (4)   One copy to the County Planning Commission (when applicable).
   (B)   Additional copies shall be submitted as requested by borough or other regulatory authorities.
(1980 Code, Ch. 24, Part 4, § 403) (Ord. 1403, passed 7-18-2011, § 403)
§ 52.053 PLAN REVIEW.
   (A)   The SWM site plan shall be reviewed by a qualified professional for the borough for consistency with the provisions of this chapter. After review, the qualified professional shall provide a written recommendation for the borough to approve or disapprove the SWM site plan. If it is recommended to disapprove the SWM site plan, the qualified professional shall state the reasons for the disapproval in writing. The qualified professional also may recommend approval of the SWM site plan with conditions and, if so, shall provide the acceptable conditions for approval in writing. The SWM site plan review and recommendations shall be completed within the time allowed by the Municipalities Planning Code for reviewing subdivision plans.
   (B)   The borough shall notify the applicant in writing within 30 days whether the SWM site plan is approved or disapproved. If the SWM site plan involves a subdivision and land development plan, the notification period is 60 days. If a longer notification period is provided by other statute, regulation or ordinance, the applicant will be notified by the borough. If the borough disapproves the SWM site plan, the borough shall cite the reasons for disapproval in writing.
(1980 Code, Ch. 24, Part 4, § 404) (Ord. 1403, passed 7-18-2011, § 404)
§ 52.054 MODIFICATION OF PLANS.
   A modification to a submitted SWM site plan that involves a change in SWM BMPs or techniques, or that involves the relocation or redesign of SWM BMPs, or that is necessary because the borough has determined that other conditions are not as stated on the SWM site plan, then the borough shall require a resubmission of the modified SWM site plan in accordance with this subchapter.
(1980 Code, Ch. 24, Part 4, § 405) (Ord. 1403, passed 7-18-2011, § 405)
§ 52.055 RESUBMISSION OF DISAPPROVED SWM SITE PLANS.
   A disapproved SWM site plan may be resubmitted, with the revisions addressing the borough’s concerns, to the borough in accordance with this subchapter. The applicable review fee must accompany a resubmission of a disapproved SWM site plan.
(1980 Code, Ch. 24, Part 4, § 406) (Ord. 1403, passed 7-18-2011, § 406)
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