A. 
For any of the development activities regulated by this chapter as defined pursuant to § 158-4E, the final approval of subdivision and/or land development plans, the issuance of any building, zoning, or occupancy permit, or the commencement of any land disturbance activity may not proceed until the property owner or developer or his/her agent has received a stormwater management permit (permit) or approval of a stormwater management exemption by the Borough. Final approval of a subdivision and/or land development plan and recordation of same with the Bucks County Recorder of Deeds, shall constitute approval of the stormwater management permit for stormwater facilities/BMPs proposed on the plan.
B. 
A stormwater management site plan (SMSP) shall be required in conjunction with a stormwater management permit for all regulated development activities that do not qualify for exemption from the provisions of this chapter pursuant to § 158-5B and C. The SMSP shall include all items identified pursuant to § 158-22. The SMSP approved by the Borough shall be on-site throughout the duration of the regulated activity.
C. 
A simplified stormwater management site plan (SSMSP) shall be required in conjunction with a permit for regulated development activities qualifying for exemption of the provisions of this chapter pursuant to § 158-5C. The SSMSP shall include all items identified pursuant to § 158-23. The SSMSP approved by the Borough shall be on-site throughout the duration of the regulated activity.
D. 
A stormwater management permit shall only be issued upon approval of a stormwater management site plan or simplified stormwater management site plan by the Borough. A stormwater management permit is not required for regulated activities exempt pursuant to § 158-5B of this chapter, but approval of a stormwater management exemption must be issued by the Borough pursuant to § 158-5B and F, prior to commencement of regulated activities.
For all regulated activities not exempt from provisions of this chapter, a stormwater management site plan (SMSP) is required and shall consist of all applicable calculations, maps, and plans. A note on the maps shall refer to the associated computations and erosion and sedimentation control plan by title and date. The cover sheet of the computations and erosion and sedimentation control plan shall refer to the associated maps by title and date. All SMSP application documents shall be submitted to the Borough in a format that is clear, concise, legible, neat, and well organized; otherwise, the stormwater management site plan shall be disapproved and returned to the applicant. The following items shall be included in the stormwater management site plan:
A. 
Two copies of the completed Borough stormwater management application form.
B. 
Grading/drainage review fee and escrow, as established by separate resolution of Borough Council.
C. 
A feasibility analysis that evaluates the potential application of infiltration, flow attenuation, bioretention, wetland, or wet pond BMPs must be submitted with the stormwater management site plans required in Article IV. The feasibility analysis must allow the Borough to review the general soil characteristics of a site and the proposed development for that site and determine if infiltration BMPs or wet pond or artificial wetland BMPs could have been more thoroughly pursued for use by the developer. The information required in the analysis shall be detailed enough to determine the potential applicability of these BMPs for a proposed development, but general enough not to force a developer into incurring excessive cost associated with conducting laborious field and/or laboratory soil testing for a site which ultimately may not be suitable for infiltration or wet pond or artificial wetland BMP implementation. However, with the requirements for conducting a feasibility analysis, developers must be aware that they are expected to use these BMPs wherever possible and are required to provide adequate justification if these BMPs are not to be implemented. Essentially, all developers will be conducting feasibility analysis since such analysis would become the preliminary step in evaluating the potential for implementation of these mandatory BMPs where possible. Developers for those sites that are determined to be generally suitable from these analysis (taking into consideration the areal extent of suitable soils necessary to accommodate an infiltration or wet pond or wetland BMP for the type and size of development proposed) are required to conduct the detailed soil testing and other feasibility testing required in other sections of this chapter which contain the description and additional design criteria of these BMPs. This analysis shall provide:
(1) 
A general assessment of the anticipated additional runoff based on the design storm and post-development condition and utilizing the calculation procedures required in § 158-19;
(2) 
Indication of drainage areas on the development site resulting in impervious, pervious, and rooftop runoff;
(3) 
Indication of type of land use (residential, nonresidential) generating the impervious surface runoff;
(4) 
Delineation of soils on the site from the NRCS, web soil survey and onsite soil study. Soil study shall be conducted by a soil scientist and shall include sufficient probes/deep holes to evaluate application of BMPs;
(5) 
Indication of soils generally suitable for infiltration and/or wet pond/artificial wetland BMPs;
(6) 
Calculated acreage of suitable soils for infiltration BMPs and wet pond or artificial wetland BMPs and percentage of suitable soils based on total site acreage;
(7) 
Calculated acreage of suitable soils for infiltration BMPs and wet pond or artificial wetland BMPs made unavailable due to proposed development layout and justification that alternative development layout which would reduce impact on suitable soil availability is unfeasible;
(8) 
Analysis of potential infiltration or wet pond or artificial wetland BMPs which could be implemented to manage the projected post-development runoff with consideration of suitable soil availability runoff point of and type of land use (Subsection C(2) and (3) above) and the general design standards and maintenance issues included in this chapter including an indication of how most post-development runoff can be managed by these BMPs (e.g., the entire post-development runoff or partial amount of runoff expressed as a percentage); and
(9) 
Rationale for the decision to not proceed with implementation of infiltration BMPs or wet pond or artificial wetland BMPs such as excessive cost of implementation, insufficient soil suitability, and development constraints.
D. 
A detailed geologic evaluation of the project site pursuant to § 158-15E and Appendix B of this chapter, shall be performed to determine the suitability of recharge facilities. The evaluation shall be performed by a qualified geologist and/or soil scientist, and at a minimum, address soil permeability, depth to bedrock, susceptibility to sinkhole formation, and subgrade stability.
E. 
General.
(1) 
General description of project.
(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.
F. 
Four copies of the stormwater management site plan for the parcel shall be submitted on twenty-four-inch by thirty-six-inch sheets or other approved sheet size and shall be prepared in a form that meets the requirements for recording at the offices of the Recorder of Deeds of Bucks County. The contents of the plan shall include, but not be limited to:
(1) 
The location of the project relative to highways, municipalities, or other identifiable landmarks.
(2) 
Watershed(s) within which the project is located (e.g. Tohickon Creek, East Branch Perkiomen Creek).
(3) 
Existing contours at intervals of two feet or less. In areas of steep slopes (greater than 25%), five-foot contours may be used.
(4) 
Existing streams, lakes, ponds, or other bodies of water within the project area.
(5) 
Other physical features, including riparian corridors, flood hazard boundaries, sinkholes, streams, existing drainage courses, wetlands, areas of natural vegetation to be preserved, and the total extent of the upstream area draining through the site.
(6) 
The locations of all existing and proposed utilities, sanitary sewers, and water lines located on the site and/or within 50 feet of property lines with minimum setback distances for all existing and proposed water supply wells and on-lot sewage disposal systems.
(7) 
An overlay showing soil names and boundaries. This overlay shall include a table on the map showing the recharge capabilities of each soil represented onsite in inches per hour and describe their recharge or infiltration capabilities.
(8) 
Proposed changes to the land surface and vegetative cover, including a tabulation of impervious surface area which identifies the type of surface and the quantity of existing impervious surface area, existing impervious surface area to be removed and proposed impervious surface area.
(9) 
Proposed structures, roads, paved areas, and buildings. Where pervious pavement is proposed for parking lots, recreational facilities, nondedicated streets, or other areas, detailed pervious pavement construction specifications shall be noted on the plan.
(10) 
Final contours at intervals of two feet or less.
(11) 
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) 
The date of submission.
(13) 
A graphic and written scale of one inch equals no more than 50 feet. For tracts of 20 acres or more, the scale may be one inch equals no more than 100 feet.
(14) 
A North arrow.
(15) 
The total tract boundary and size with distances marked to the nearest foot and bearings to the nearest degree.
(16) 
Existing and proposed land use(s).
(17) 
A key map showing all existing man-made features beyond the property boundary that may be affected by the project.
(18) 
Horizontal and vertical profiles of all open channels, including hydraulic capacity.
(19) 
All existing and proposed stormwater management facility and/or drainage easements described by metes and bounds, including the purpose and ownership and maintenance provisions for each easement.
(20) 
A twenty-foot-wide access easement around all stormwater management facilities that would provide ingress to and egress from a public right-of-way or paved driveway within an existing or proposed easement that accesses a public right-of-way.
(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 construction detail of any improvements made to sinkholes and the location of all notes to be posted, as specified in this chapter.
(23) 
A statement, signed by the landowner, acknowledging the stormwater management system to be a permanent fixture that can be altered or removed only after approval of a revised plan by the Borough, which shall be recorded with the record plan and which shall be applicable to all future landowners.
(24) 
The location of all erosion and sedimentation control facilities.
(25) 
The following signature block for the design engineer:
(Design engineer), on this date (date of signature), has reviewed and hereby certify that the stormwater management site plan meets all design standards and criteria of the current Perkasie Borough Stormwater Management Ordinance.
(26) 
The stormwater management site plan shall include an operation and maintenance plan for all existing and proposed stormwater management/BMP facilities, addressing long-term ownership and maintenance responsibilities for such facilities, including schedule for operation and maintenance activities.
G. 
Required supplemental information.
(1) 
A written description of the following information shall be submitted:
(a) 
The overall stormwater management concept for the project.
(b) 
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.
(c) 
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 § 158-12.
(d) 
Stormwater management techniques to be applied both during and after development.
(e) 
Expected project time schedule.
(2) 
A soil erosion and sedimentation control plan, where applicable, including all reviews and approvals, as required by PADEP and/or Bucks County Conservation District.
(3) 
A geologic assessment of the effects of runoff on sinkholes as specified in this chapter.
(4) 
The effect of the project (in terms of runoff volumes, water quality, and peak flows) on adjacent properties and aquatic features and on any existing Borough stormwater collection system that may receive runoff from the project site.
(5) 
Plan and profile drawings of all SWM BMPs, including drainage structures, pipes, open channels, and swales.
(6) 
SWM site plan shall show the locations of existing and proposed on-lot wastewater facilities and water supply wells.
(7) 
A declaration of adequacy and highway occupancy permit from the PADOT District Office when utilization of a PADOT storm drainage system is proposed.
(8) 
An operations and maintenance (O&M) plan for all existing and proposed physical stormwater facilities, as well as schedules and costs for O&M activities. The plan shall address long-term ownership and responsibilities for O&M.
(9) 
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.
H. 
Stormwater management BMPs.
(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 proposed, the locations of existing and proposed septic tank infiltration areas, and wells must be shown. A minimum separation distance of no less than 50 feet shall be provided between any septic system and any facility used for stormwater management. An analysis shall be submitted to verify that stormwater infiltration shall not affect groundwater elevations of the septic drain field site if this distance is approved by the Borough to be less than 50 feet. In no case shall this distance be less than 10 feet.
(3) 
All calculations, assumptions, and criteria used in the design of the stormwater management facilities must be shown. If multiple facilities are proposed in conjunction with each other, such as infiltration best management practices with vegetation-based management practices, a summary narrative, shall be included describing any sequence and how the facilities are meant to function with each other to manage stormwater runoff.
(4) 
All stormwater management/BMP facility easements required by this chapter must be shown on the stormwater management site plan, including the bearing and distance of each segment of the easement(s) boundary.
For all regulated activities that qualify for exemption of certain provisions of this chapter pursuant to § 158-5C, and that are required to install an infiltration basin(s) in accordance with Perkasie Borough design and construction criteria, a simplified stormwater management site plan (SSMSP) is required and shall include the following items:
A. 
Two copies of the completed Borough stormwater management application form.
B. 
Stormwater management review fee and escrow, as established by separate resolution of Borough Council.
C. 
Four copies of the simplified stormwater management site plan for the parcel containing, at a minimum, the following information:
(1) 
Property boundaries and area of the site, based on deed information, or field survey.
(2) 
Location map identifying the site relative to streets and other parcels in the vicinity of the site.
(3) 
Location of significant natural and existing man-made features, including wetlands, watercourses, riparian corridors, woodlands, steep slopes, structures, parking areas, driveways, utilities, flood hazard boundaries, sinkholes, wells, and septic systems within 200 feet of proposed impervious surface, regardless of the location of the property boundary.
(4) 
Location and dimensions of existing and proposed impervious surface and other improvements, with setbacks drawn to relate the location of same to property lines, streets, and existing features. Impervious surface area tabulation must be provided identifying existing area of impervious surface, existing impervious surface area to be removed, and proposed impervious surface area.
(5) 
North arrow.
(6) 
Plan scale, as applicable.
(7) 
Existing contours at intervals of two feet or less. In areas of steep slopes (greater than 25%), five-foot contours may be used.
(8) 
Proposed contours at intervals of two feet or less.
(9) 
Seepage pit design calculations and construction details;
(10) 
An overlay on the site showing soil names and boundaries from the NRCS, web soil survey or onsite soil study, conducted by a soil scientist. This overlay shall include a table on the map showing the recharge capabilities of each soil represented onsite in inches per hour and describe their recharge or infiltration capabilities.
(11) 
Watershed(s) within which the project is located (e.g., Tohickon Creek, East Branch Perkiomen Creek)
(12) 
A graphic and written scale of one inch equals no more than 50 feet. For tracts of 20 acres or more, the scale may be one inch equals no more than 100 feet.
(13) 
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.
(14) 
A soil erosion and sedimentation control plan, where applicable, including all reviews and approvals, as required by PADEP and/or Bucks County Conservation District.
(15) 
A statement, signed by the landowner, acknowledging the stormwater management system to be a permanent fixture that can be altered or removed only after approval of a revised plan by the Borough, which shall be recorded with the record plan and which shall be applicable to all future landowners.
(16) 
The following signature block for the design engineer:
(Design engineer), on this date (date of signature), has reviewed and hereby certify that the stormwater management plan meets all design standards and criteria of the current Perkasie Borough Stormwater Management Ordinance.
(17) 
Locations of existing and proposed septic tank infiltration areas, and wells must be shown. A minimum separation distance of no less than 50 feet shall be provided between any septic system and any facility used for stormwater management. An analysis shall be required to verify that stormwater infiltration shall not affect groundwater elevations of the septic drain field site, if this distance is approved by the Borough to be less than 50 feet. In no case shall this distance be less than 10 feet.
(18) 
It shall be the developer's responsibility to verify if the site is underlain by limestone. The following note shall be attached to all simplified stormwater management site Plans and signed and sealed by the developer's professional engineer:
"I, __________, certify that the proposed stormwater management facility (circle one) is/is not underlain by limestone."
For all activities regulated by this chapter, the steps below shall be followed for submission of a SMSP or SSMSP (both referred to in this section as "Plan"). For any activities that require a PADEP permit regulated under Chapter 105 (Dam Safety and Waterway Management) or Chapter 106 (Floodplain Management) of PADEP's Rules and Regulations, require a PADOT highway occupancy permit, or require any other permit under applicable local, state, or federal regulations, the permit(s) shall be part of the plan submission.
A. 
The SMSP shall be submitted by the developer as part of any preliminary subdivision and/or land development plan submission.
B. 
A minimum of four copies of the plan shall be submitted in conjunction with regulated activities not exempt pursuant to § 158-5B of this chapter. Additional copies shall be submitted if requested by the Borough.
C. 
Distribution of the plan will be as follows:
(1) 
One copy to the Borough accompanied by the requisite Borough review fee and escrow, as specified in this chapter.
(2) 
One copy to the Borough Engineer.
(3) 
One copy to the Bucks County Conservation District.
(4) 
One copy to the Bucks County Planning Commission.
A. 
The Borough Engineer shall review the plan for consistency with the adopted Watershed Act 167 Stormwater Management Plan and applicable Borough ordinances. The Borough shall require receipt of a complete plan, as specified in this chapter.
B. 
The Borough Engineer shall review the plan for any subdivision or land development against the Subdivision and Land Development Ordinance provisions not superseded by this chapter.
C. 
For activities regulated by this chapter (not including subdivision or land development), the Borough Engineer shall notify the Perkasie Borough Secretary in writing, whether the plan is consistent with Borough Ordinances and other relevant regulations including the Watershed Act 167 Stormwater Management Plan. Should the plan submitted by the applicant be determined to be consistent with Borough ordinances and other relevant regulations, the Borough Engineer will forward a review letter to the applicant with a copy to the Perkasie Borough Secretary. Any disapproved plan may be revised by the developer and resubmitted consistent with this chapter.
D. 
The Borough shall not approve any subdivision or land development or regulated activities specified in § 158-4E(1) and (2) of this chapter if the plan has been found to be inconsistent with the Watershed Act 167 Stormwater Management Plan. All required permits from PADEP must be obtained prior to, or as a requirement of, final approval.
E. 
The Perkasie Borough Building Code Official shall not issue a building permit for any regulated activity specified in § 158-4 of this chapter if the stormwater management site plan has been found to be inconsistent with the adopted Watershed Act 167 Stormwater Management Plan, as determined by the Borough Engineer, or without considering the comments of the Borough Engineer. All required permits from PADEP must be obtained prior to issuance of a building permit.
F. 
The Borough's approval of a stormwater management site plan or simplified stormwater management site plan prepared in conjunction with a stormwater management permit application (for a regulated activity that is not a subdivision or land development, and which is not exempt from provisions of this chapter pursuant to § 158-5B), shall be valid for a period not to exceed one year. This time period shall commence on the date that the Borough signs and issues a stormwater management permit. If stormwater management facilities included in the approved plan have not been constructed, or if an as-built survey of these facilities pursuant to § 158-28 of this chapter has not been approved within this time period, the Borough may consider the plan disapproved and may revoke any and all permits. Plans that are considered disapproved by the Borough shall be resubmitted in accordance with § 158-27 of this chapter.
G. 
The Borough's approval of a stormwater management site plan prepared in conjunction with an approved subdivision or land development shall remain valid and protected from any change in Borough Codes and ordinances for a period no greater than five years from the date of preliminary subdivision and/or land development plan approval, pursuant to the provisions of the Pennsylvania Municipalities Planning Code.
H. 
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 Borough will not approve the SWM site plan unless it determines that green infrastructure and LID practices are not practicable.
A. 
A modification to a submitted stormwater management site plan or simplified stormwater management site plan for a development site 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 plan as determined by the Borough Engineer, shall require a resubmission of a modified plan consistent with § 158-27 of this chapter and be subject to review as specified in § 158-25 of this chapter.
B. 
A modification to an already approved or disapproved plan shall be submitted to the Borough, accompanied by the applicable Borough review fee and escrow. A modification to a plan for which a formal action has not been taken by the Borough shall be submitted to the Borough, accompanied by the applicable Borough review fee.
A disapproved stormwater management site plan or simplified stormwater management site plan may be resubmitted, with revisions addressing the Borough Engineer's concerns, documented in writing, to the Borough Engineer in accordance with § 158-24 of this chapter and be subject to review as specified in § 158-25 of this chapter. The applicable Borough review fee and escrow must accompany resubmission of a disapproved plan.
A. 
The developer of any regulated activity requiring a stormwater management site plan and stormwater management permit shall be responsible for completing an as-built survey, sealed by a professional engineer licensed in the Commonwealth of Pennsylvania or a registered surveyor licensed in the Commonwealth of Pennsylvania, of all stormwater management facilities/improvements included in the approved plan. An as-built survey is required for infiltration basin(s) installed in conjunction with a simplified stormwater management site plan. The as-built survey and an explanation of any discrepancies with the design plans shall be submitted to the Borough Engineer for approval. In no case shall the Borough approve the as-built survey until the Borough receives a copy of an approved declaration of adequacy, highway occupancy permit from the PADOT District Office (if applicable), any applicable permits from PADEP, and NPDES Notice of Termination (if applicable) approved by PADEP or the Bucks County Conservation District.
B. 
Completed stormwater management facilities and BMPs, including detention/retention basins, shall be surveyed by a professional land surveyor or engineer licensed in the Commonwealth of Pennsylvania, to verify compliance with the character of stormwater management facilities as depicted on the approved plan. As-constructed plans shall be submitted to Perkasie Borough for review and approval, upon completion of construction of all facilities and prior to offer of dedication of any public facilities and/or submission of financial security for the required maintenance period associated with subdivisions and land developments. Public facilities will not be accepted by Perkasie Borough until such time the as-constructed plans have been reviewed and approved by the Borough Engineer.
A set of plans approved by the Borough shall be on file at the site throughout the duration of the development activity. Periodic inspections may be made by the Borough or designee during development activities.
It shall be unlawful for any person to undertake any regulated activity on any property except as provided for in the approved plan and pursuant to the requirements of this chapter. It shall be unlawful to alter or remove any stormwater management facility or BMP required by the plan pursuant to this chapter or to allow the property to remain in a condition which does not conform to the approved plan.
At the completion of the project, and as a prerequisite for the release of the performance guarantee required pursuant to § 158-37, the owner or his representatives shall:
A. 
Provide a set of as-built drawings pursuant to § 158-28 of this chapter and/or Subdivision and Land Development Ordinance requirements. The as-built submission shall include a Certification of Completion signed by a licensed, qualified professional verifying that all permanent stormwater management/BMP facilities have been constructed according to the approved stormwater management site plan and specifications.
B. 
Contact the Borough Engineer to request inspection of the site for completion of stormwater management facilities and compliance with the approved plan and provisions of this chapter. This final inspection shall be conducted by the Borough after receipt of the Certification of Completion.
A use and occupancy permit for any improvements constructed in conjunction with a subdivision and/or land development or other Borough permit (requiring issuance of use and occupancy permit) shall not be issued unless the certification of completion, pursuant to § 158-31 of this chapter, has been obtained by the Borough (in conjunction with regulated development activities requiring a stormwater management site plan and stormwater improvements/BMPs).