A. 
Appropriate sections from the municipality's Subdivision and Land Development Ordinance,[1] and other applicable local ordinances, shall be followed in preparing the SWM site plans. In instances where the municipality lacks subdivision and land development regulations, the content of SWM site plans shall follow the county's Subdivision and Land Development Ordinance.
[1]
Editor's Note: See Ch. 113, Subdivision and Land Development.
B. 
The municipality shall not approve any SWM site plan that is deficient in meeting the requirements of this chapter. At its sole discretion and in accordance with this article, when a SWM site plan is found to be deficient, the municipality may either disapprove the submission and require a resubmission, or, in the case of minor deficiencies, the municipality 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 (O&M) plan discussed in Subsection E(17) below.
(1) 
A minimum twenty-foot-wide drainage easement shall be provided for all stormwater management facilities. Drainage easements shall provide for ingress and egress to a public right-of-way.
(2) 
A minimum twenty-foot-wide drainage easement shall be provided where the conveyance, treatment, of stormwater, either existing or proposed, is identified on the stormwater management plan. Drainage easements shall be provided to contain and convey the 100-year storm event.
(3) 
A note on the stormwater management plan indicating that nothing shall be placed, planted, set, or put within the area of an easement. No alterations to swales, basins, BMPs, or other stormwater management shall be permitted without prior approval.
(4) 
Stormwater management facilities not located within a public right-of-way shall be contained in and centered within a drainage easement. Easements shall follow property boundaries where possible.
D. 
The following signature block for the municipality:
"(Municipal official or designee), on this date (Signature date), has reviewed and hereby certifies that the SWM site plan meets all design standards and criteria of the Municipal Ordinance No. (number assigned to ordinance)."
E. 
The SWM site plan shall provide the following information:
(1) 
A written report including an overall project description of the proposed stormwater management concepts, including a summary identifying specific LID and green infrastructure practices and the existing site conditions. Including stormwater runoff calculations for both predevelopment and post-development conditions, including complete hydrologic, hydraulic, and structural computations for all stormwater management facilities.
(2) 
A determination of site conditions in accordance with the BMP Manual.[2] 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.
[2]
Editor's Note: Refer to § 107-61D.
(3) 
All calculations, assumptions, and criteria used in the design of the stormwater management facilities must be shown. If multiple facilities are used in conjunction with each other, such as infiltration BMPs with vegetation-based management practices, a summary narrative shall be included describing any sequencing and how the facilities are meant to function with each other to manage stormwater runoff in accordance with this chapter.
(4) 
The sheet sizes shall be either 11 inches by 17 inches, 18 inches by 24 inches, 22 inches by 34 inches, or 24 inches by 36 inches. If the plan is prepared in two or more drawing sheets, a full-size drawing and key map showing the location of the sheets and a match line shall be placed on each sheet. Each sheet shall be numbered to show the relationship to the total number of sheets in the plan set.
(5) 
Proposed name or identifying title of project.
(6) 
Name and address of the landowner and applicant of the project site.
(7) 
The limit of disturbance (LOD) shall be shown with its area labeled in square feet or acres.
(8) 
Plan date and date of the latest revision to the plan.
(9) 
North point, graphic scale and written scale. All plans shall be drawn at a scale sufficient to determine consistency with this and other municipal ordinances.
(10) 
A table on the plan indicating the total acreage of the project site and the tract of land on which the project site is located, assumed square footage of impervious surface for each lot, and the assumed square footage of impervious surface permitted for each stormwater management facility.
(11) 
A location map, for the purpose of locating the project site to be developed, at a minimum scale of 1,000 feet to the inch, showing the relation of the tract to adjoining property and to all streets and the municipality boundaries existing within 400 feet of any part of the tract of land on which the project site is proposed to be developed.
(12) 
A soil erosion and sediment control plan, where applicable, as prepared for and submitted to the approval authority as well as the municipality.
(13) 
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.
(14) 
A hydrogeologic assessment of the effects of stormwater runoff on sinkholes, where present.
(15) 
Plan and profile drawings of all SWM BMPs, including drainage structures, pipes, open channels, and swales. All plans and profiles should align vertically on the sheets for reference. All utility crossings shall be shown on these profiles.
(16) 
SWM site plan shall show the locations of existing and proposed on-lot wastewater facilities and water supply wells.
(17) 
The SWM 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.
(18) 
A justification must be included in the SWM 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.
(19) 
A description of permanent stormwater management techniques, including the construction specifications and the materials to be used for stormwater management facilities.
(20) 
A notarized signature of the owner of the parcel for which the SWM site plan is proposed indicating that they are aware of and will be responsible for operation and maintenance of the facilities.
(21) 
A list of all requested waivers to the stormwater management ordinance.
(22) 
Existing features.
(a) 
Tract boundaries showing distances, bearings, and curve data, as located by field survey or by deed plotting.
(b) 
Existing contours at vertical intervals of one or two feet for land with an average natural slope of 20% or less and at vertical intervals of five feet for more steeply sloping land. The location of the benchmark and the datum used shall also be indicated.
(c) 
The names of all owners of all immediately adjacent unplatted land and the locations and dimensions of any streets or easements shown thereon.
(d) 
The names, locations, and dimensions of all existing streets, railroads, watercourses, drainage facilities, floodplains, streams, lakes, ponds, and other water bodies, existing drainage courses, karst features, and other significant features within 200 feet of any part of the tract proposed to be developed and the location of all buildings and structures.
(e) 
Other physical features including wetlands, sinkholes, areas of native vegetation to be preserved, including trees greater than two inches in diameter at breast height, woodlands, other environmentally sensitive areas, and the total extent of the upstream area draining through the project site.
(f) 
The locations of all existing utilities, including on-lot disposal systems and wells, sanitary sewers, and water lines within 200 feet of the property lines.
(g) 
Soil boundaries and soil types as designated by the NRCS.
(h) 
Existing zoning districts and property line setbacks.
(i) 
A note on the plan identifying the presence or absence of carbonate geology. See § 107-20D of this chapter.
(23) 
Proposed features.
(a) 
The proposed land use, the number of lots and dwelling units, and the extent of commercial, industrial, or other nonresidential uses.
(b) 
The locations and dimensions of all proposed streets, parks, playgrounds, and other public areas, sewer and water facilities; lot lines and building locations; parking compounds, driveways, paved areas, and other impervious surfaces.
(c) 
The proposed changes to land surface and vegetative cover, including areas to be cut or filled.
(d) 
Proposed contours at vertical intervals of two feet for land with an average natural slope of 15% or less and at vertical intervals of five feet for more steeply sloping land.
(e) 
Finished elevations on tops of curbs at lot lines projected and lot corners. Elevations shall be shown to the nearest tenth of a foot.
(f) 
A summary table depicting the minimum lowest floor elevation, which includes the basement for all lots located immediately adjacent to the floodplain area.
(g) 
The location of any proposed on-lot disposal system, replacement drain field easements, and water supply wells.
(h) 
The location of any proposed signage identifying the constructed BMP. Proposed signage shall be installed on any nonresidential property or property under the control of a homeowners' association or community association.
(i) 
A summary table on the plan identifying all BMPs including BMP ID, drainage area to the BMP, name of receiving waterbody, the BMP's inspection and maintenance frequency, name of responsible person or organization at the time of stormwater management plan approval, and the lot numbers where the BMP is located.
(j) 
The name of the development, the name and address of the owner of the property, and the name and address of the individual or firm preparing the plan. Also to be included are the name, address, signature, and seal of any registered surveyor, professional engineer, landscape architect, or professional geologist (for geomorphological assessments) contributing to and/or with a responsibility for any aspect of the plan where applicable.
(k) 
A planting plan is required for all vegetated stormwater BMPs.
(l) 
Native or naturalized/noninvasive species suitable to the soil and hydrologic conditions of the site shall be used unless otherwise specified in the BMP Manual.
(m) 
Invasive vegetation may not be included in any planting schedule. (See Invasive Plants in Pennsylvania as published by the Department of Conservation and Natural Resources.)
(n) 
The limit of existing, native vegetation to remain shall be delineated on the plan along with proposed construction protection measures.
(o) 
Prior to construction, a tree protection zone shall be delineated at the dripline of the tree canopy. The tree protection zone of trees scheduled to remain shall be marked. Groups of trees may be marked by a protection zone along the outermost drip line boundary. A forty-eight-inch-high snow fence or forty-eight-inch-high construction fence mounted on steel posts located eight feet on center shall be placed along the tree protection boundary. No construction, storage of material, temporary parking, pollution of soil, or regrading shall occur within the tree protection zone.
(p) 
All planting shall be performed in conformance with good nursery and landscape practice. Plant materials shall conform to the standards recommended in the American Standard of Nursery Stock.
[1] 
Planting designs are encouraged to share planting space for optimal root growth whenever possible.
[2] 
No staking or wiring of trees shall be allowed without a maintenance note requiring the stake and/or wire to be removed within one year of planting.
A. 
All materials submitted to the municipality for review must be provided in PDF format.
B. 
In addition, four physical paper copies of the stormwater management site plan shall be submitted as follows:
(1) 
Two copies to the municipality.
(2) 
One copy to the Municipal Engineer (when applicable).
(3) 
One copy to the County Conservation District (when applicable).
(4) 
Proof of NPDES Application and permit obtained (when required).
A. 
SWM site plans shall be reviewed by the municipality for consistency with the provisions of this chapter.
B. 
From the time an application for approval of a plat involving a subdivision or land development plan, whether preliminary or final, which includes a SWM site plan, is duly filed with the municipality, no change or amendment of the ordinance or other governing ordinance or plan shall affect the decision on such application in accordance with the provisions of the governing ordinances or plans as they stood at the time the application was duly filed, as specified in § 508(4)(i) of the Pennsylvania Municipalities Planning Code, 53 P.S. § 10508(4)(i).
C. 
The municipality shall notify the applicant in writing within 45 days whether the SWM site plan is approved or disapproved. If the SWM site plan involves a subdivision and land development plan, the notification shall occur within the time period allowed by the Municipalities Planning Code (90 days). If a longer notification period is provided by another statute, regulation, or ordinance, the applicant will be notified by the municipality. If the municipality denies approval of the SWM site plan, the municipality will state the reasons for the denial in writing. The municipality may also approve the SWM site plan with conditions and, if so, shall provide the acceptable conditions for approval in writing.
D. 
For any SWM 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 municipality will not approve the SWM site plan unless it determines that green infrastructure and LID practices are not practicable.
Modifications to a submitted SWM site plan that involve a change in SWM BMPs or techniques, or that involves the relocation or redesign of SWM BMPs, or that is necessary because soil or other conditions are not as stated on the SWM site plan, as determined by the municipality, shall require a resubmission of the modified SWM site plan in accordance with this article.
A. 
When reviewing a SWM site plan, whether or not the SWM site plan is included in a subdivision and/or land development plan application, the municipality may, after consulting with DEP, grant a modification of the requirements of one or more provisions of this chapter if the literal enforcement will enact undue hardship because of peculiar conditions pertaining to the land in question, provided that such modification will not be contrary to the public interest and that the purpose and intent of the ordinance are observed.
B. 
All requests for a modification from an applicant shall be in writing and shall accompany and be a part of the application for approval of a SWM site plan and/or a subdivision or land development plan as applicable. The request shall state in full the grounds and facts of unreasonableness or hardship on which the request is based, the provision or provisions of the ordinance involved, and the minimum modification necessary.
C. 
In granting any modification, the municipality may attach such reasonable conditions and safeguards as it may deem necessary to implement the purposes of the Act 167 plan and this chapter.
D. 
The municipality shall keep a written record of all action on requests for modifications. The response of any consultation and/or review by DEP shall be included as an original report if available or otherwise documented in the required written record.
A disapproved SWM site plan may be resubmitted, with the revisions addressing the municipality's concerns, to the municipality in accordance with this article. The applicable review fee must accompany a resubmission of a disapproved SWM site plan.
A. 
SWM site plans independent of subdivision and land development plans. The municipality's approval of a SWM site plan, when such plan is submitted independent of a subdivision and/or land development plan, authorizes the regulated activities contained in the SWM site plan for a maximum term of validity of five years following the date of approval. The municipality may specify a term of validity shorter than five years in the approval for any specific SWM site plan, particularly if the nature of the proposed SWM facilities require more frequent maintenance and/or short-term replacement of certain components. Terms of validity shall commence on the date the municipality signs the approval for a SWM site plan. If an approved SWM site plan is not completed according to § 107-28 within the term of validity, then the municipality may consider the SWM site plan disapproved and may revoke any and all permits. SWM site plans that are considered disapproved by the municipality may be resubmitted in accordance with § 107-26 of this chapter.
B. 
SWM site plans included in a subdivision and/or land development plan. The municipality's approval of a SWM site plan, which is a part of a subdivision and/or land development plan, authorizes that plan and the regulated activities therein so that no subsequent change or amendment in this chapter or other governing ordinances or plans shall be applied to affect adversely the right of the applicant to commence and to complete any aspect of the approved development in accordance with the terms of such approval within five years from such approval, as specified in § 508(4)(ii) through (vii) of the Pennsylvania Municipalities Planning Code, 53 P.S. § 10508(4)(ii) through (vii).
A. 
The developer shall be responsible for providing the municipality with as-built plans of all SWM BMPs included in the approved SWM site plan. The as-built plans and an explanation of any discrepancies with the construction plans shall be submitted to the municipality.
B. 
The as-built submission shall include a certification of completion signed by a qualified professional verifying that all permanent SWM BMPs have been constructed according to the approved plans and specifications. The latitude and longitude coordinates for all permanent SWM 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 municipality, the municipality may conduct a final inspection.
D. 
The financial guarantee, as discussed under § 107-29, shall not be released by the municipality until the items in this section are completed.
A. 
The applicant shall provide financial security to the municipality to assure the timely installation and proper construction of all stormwater management facilities, including but not limited to erosion and sediment control measures and BMPs as required by the approved stormwater management plan and this chapter. The posting and administration of financial security to guarantee the completion of required improvements and common amenities shall comply with the provisions of this section, the MPC, and other applicable laws of the commonwealth. Those projects that qualify for the usage of the Small Projects Guide[1] shall not be required to provide financial security.
[1]
Editor's Note: See Appendix D, included as an attachment to this chapter.
B. 
All financial security shall be prepared by the applicant in the form required by the municipality and in a form and content acceptable to the Solicitor for the municipality. The amount of the security shall be calculated in accordance with Article V of the MPC. The following are acceptable forms of security. All other forms of security shall be individually approved by the municipality.
(1) 
Letter of credit. A letter of credit provided by the applicant from a financial institution or other reputable institution subject to the approval of the municipality. This letter shall be deposited with the municipality and shall certify the following:
(a) 
That the creditor does guarantee funds in an amount equal to 110% of the cost of completing all required improvements.
(b) 
In case of failure on the part of the applicant to complete the specified improvements within the required time period or notification by the financial institution that the letter of credit will not be renewed, the creditor shall pay to the municipality, immediately and without further action, such funds as are necessary to finance the completion of those improvements, up to the limit of credit stated in the letter.
(c) 
The letter of credit may not be withdrawn or reduced in amount until released by the municipality.
(2) 
Surety performance bond. A security bond from a surety bonding company authorized to do business in the Commonwealth of Pennsylvania. The bond shall be payable and in a form acceptable to the municipality.
(3) 
Escrow account. A deposit of cash with the municipality or in escrow with a financial institution. The use of a financial institution for establishing an escrow account shall be subject to approval by the municipality an agreement between the financial institution and himself guaranteeing the following:
(a) 
That the funds of said escrow account shall be held in trust until released by the municipality, as appropriate, and may not be used or pledged by the applicant as security in any other manner during that period.
(b) 
In the case of a failure on the part of the applicant to complete said improvements, then the institution shall immediately make the funds in said account available to the municipality for use in the completion of those improvements.
(c) 
As the work of installing the required improvements proceeds, the party posting the financial security may request the municipality to authorize the release of such portions of the financial security associated with the completed improvements. Requests for the partial release of financial security as the work of installing the required improvements proceeds shall be made and governed by the MPC.
(d) 
At such time that the applicant has completed and installed the required improvements, the elected officials shall consider the applicant's request for a release from the improvement guarantee in accordance with the procedure set forth in the MPC.
(e) 
At the completion of the project, and as a prerequisite for the release of the financial security, the applicant shall provide record plans in accordance with § 107-28.
(f) 
Upon receipt of the record plans and prior to the release of the remaining financial security per § 107-28D, the municipality shall conduct a final inspection to certify compliance with this chapter.
C. 
In the event that any improvements which are required by this chapter have not been installed as provided in this chapter or in accordance with the approved stormwater management plan, the municipality may enforce any corporate bond or other security by appropriate legal and equitable remedies. If proceeds of such bond or other security are insufficient to pay the cost of installing or making repairs or corrections to all the improvements covered by said security, the elected officials may, at their option, install part of such improvements in all or part of the stormwater management plan and may institute appropriate legal or equitable action to recover the monies necessary to complete the remainder of the improvements.