Any application for approval of a subdivision or land development shall conform to the standards set forth in this article. The standards specified in this article are minimum design requirements.
In reviewing any application for approval of a subdivision or land development, the Board of Commissioners shall refer the application for development to the Township Engineer for a recommendation concerning technical compliance with these design standards and the Township Construction Standards.
[Amended 11-15-2004 by Ord. No. 14-2004]
A. 
Grading, filling, removal of topsoil, erosion and sedimentation control.
(1) 
All grading, filling, removal of topsoil and erosion and sedimentation control shall be performed in accordance with the requirements of Chapter 163 of the Code of the Township, Grading and Excavating, and the requirements of the Pennsylvania Clean Streams Law[1] and Ordinance 102 of the Rules and Regulations of the Pennsylvania Department of Environmental Protection governing erosion control.
[1]
Editor's Note: See 35 P.S. § 691.1 et seq.
(2) 
On any property where evidence exists of undermining, strip mining or other geologic hazards on the site, a geologic report by a qualified registered professional soils engineer regarding subsurface conditions and the probable measures needed to be considered in the design of the development, site grading and location of structures or design of their foundations, if any, shall be submitted with the application for preliminary approval of a subdivision or land development.
B. 
Poor soils. Landslide-prone soils and/or poor soils, listed herein, are defined by the Soils Survey of Allegheny County, the Soil Conservation Service and USDA. Proposed development activities on or within 50 feet of an area of poor soils shall be accompanied by a revegetation or reforesting plan that will restore the natural characteristics of the area, to the extent practicable. It shall further be accompanied by a detailed engineering study certified by a registered professional engineer licensed in the State of Pennsylvania and experienced in soils engineering and approved by the Township Engineer and containing the following, at a minimum:
(1) 
Detailed site maps at a scale of not less than one inch equals 50 feet with existing and proposed two-foot contours.
(2) 
An investigation of the geological structure of the site, confirmed by on-site test borings or pits.
(3) 
Statement of special conditions.
(4) 
Solutions accompanied by a slope stability analysis, demonstrating a factor of safety of greater than 1.4.
(5) 
Detailed construction plans.
(6) 
Inspection procedures.
C. 
Steep slopes. All areas within development sites of three acres or more that have slopes in excess of 15% shall be shown on the plat required to be submitted with an application for preliminary approval of a subdivision or land development. Slopes shall be calculated by the applicant's engineer. All steep slopes within these developments shall be subject to the following regulations:
(1) 
Slopes in excess of 40% in subdivisions for single-family dwellings.
(a) 
In any subdivision proposed for single-family dwellings, natural or man-made steep slopes in excess of 40% existing on the site at the time of application shall not be disturbed by grading, alteration or removal of vegetation, except in the following cases:
[1] 
To construct, extend or maintain public or private streets, stormwater management facilities or essential services within any public or private right-of-way or easement; or
[2] 
To provide access to or to develop recreational facilities within common open space owned and maintained by a homeowners' association or condominium in a planned residential development or residential subdivision for the benefit of the residents.
[3] 
To reclaim previously strip mined areas, provided the reclamation is performed in accordance with all requirement of the Pennsylvania Department of Environment Protection (PA DEP) and the Township Grading Ordinance[2] and further provided that a geotechnical report prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall be submitted that meets the requirements of Subsection B(3), below.
[2]
Editor's Note: See Ch. 163, Grading and Excavating.
(b) 
Plans for single-family subdivisions shall include a certification by a registered professional engineer that slopes in excess of 40% shall not be disturbed, except under the above listed conditions.
(2) 
On any lot in a subdivisions proposed for single-family dwellings, the top or toe of a steep slope in excess of 25%, whether natural or resulting from site grading, shall be at least 70 feet behind the front building line on the lot.
(3) 
In all subdivisions and land developments, steep slopes between 25% and 40% existing on the site at the time of application may be disturbed by grading, alteration or removal of vegetation, provided a geotechnical report prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall he submitted that indicates the following:
(a) 
Slide-prone soils do no exist in the area proposed for grading, alteration or removal of vegetation.
(b) 
The finished slopes after excavating or grading will be stable and will not create hazards for adjoining property from erosion, sedimentation or stormwater runoff.
(c) 
The foundations of any structures proposed to be erected in any natural steep slope areas between 25% and 40% or any such steep slope areas that have been disturbed wild be structurally sound, including recommendations for special foundation design, if warranted.
(d) 
Restoration of all such slopes from which cover has been removed shall be finished and seeded within a reasonable time after such clearance activity. The phrase "a reasonable time" shall mean within 30 days after grading and/or construction activities are completed, unless those activities are completed between November 1 and April 1. In such cases, the required seeding or sodding shall occur by May 1. In all cases, erosion and sedimentation control measures shall be maintained on the site until replacement cover can be accomplished.
(4) 
In land developments that propose the construction of a new nonresidential building or structure or the enlargement of an existing nonresidential building or structure, slopes in excess of 40% existing on the site at the time of application may be disturbed by grading, alteration or removal of vegetation, provided a geotechnical report prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall be submitted that demonstrates compliance with Subsection B(3), above, and the following additional requirements are met:
(a) 
Grading, alteration or removal of vegetation on slopes in excess of 40% shall be limited to that area that is the minimum necessary to provide:
[1] 
A reasonable building area within the lot coverage and building setback requirements of the zoning district; and
[2] 
The minimum parking area required by the Zoning Ordinance[3] for the proposed building or structure.
[3]
Editor's Note: See Ch. 240, Zoning.
(b) 
Grading shall be performed in compliance with the requirements of the Township Grading Ordinance, however, the finished slope that results after the completion of grading of steep slope areas in excess of 40% shall not he greater than a 2:1 slope, as defined by the Township Grading Ordinance.
(5) 
In all residential zoning districts, for those portions of a lot having steep slope areas, as defined in this section herein, the following standards shall apply for all proposed uses:
(a) 
Disturbance limits. Based upon steep slope category, the following disturbance limits shall be the maximum area of such slopes that may be regraded and/or stripped of vegetation:
Steep Slope Category
Disturbance Limit
Slopes at least 15% but less than 20%
85%
Slopes at least 20% but less than 25%
75%
Slopes at least 25% but less than 30%
35%
Slopes 30% or greater but less than 40%
10%
Slopes 40% or greater
0%
(b) 
Nonresidential lots within the PED and PRD shall be permitted to disturb a maximum of 60% of steep slopes areas within each steep slope category, provided it is the minimum disturbance necessary to allow a permitted use as approved by the Township Engineer.
D. 
Planting and cutting of trees; removal of debris.
(1) 
Large shade trees shall be adequately protected from injury and preserved to the extent practical.
(2) 
All lot areas which slope towards streets or adjacent lots shall be required to be seeded with grass or planted with ground cover so as to prevent washing and erosion.
(3) 
During construction, the developer shall remove and dispose of all uprooted trees, stumps, brush, rubbish, unused building materials and debris promptly in the interest of public safety.
E. 
Flood prone areas. Land identified as flood prone on maps issued by the Federal Insurance Administration shall be subject to the regulations of the National Flood Insurance Program and shall comply with the provisions of Chapter 164 of the Code of the Township, Floodplain Management.
F. 
Appeal process.
(1) 
As provided in Article IX, Waivers and Modifications, of the Township Subdivision Regulations, an applicant may request a waiver of requirements under this section. Applicants seeking to obtain a wavier shall submit a written request with the application for preliminary approval.
(2) 
In addition to the requirements of Article IX, the applicant must also provide that an independent report prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall be submitted that demonstrates the ability to develop in a safe manner.
A. 
Layout.
(1) 
Streets shall be planned to conform with the layout of existing and planned streets and be so located as to allow proper development of surrounding properties. Local streets shall be laid out so as to discourage through traffic. Collector streets should be designed to provide adequate flow of traffic from local streets to major community facilities and to arterial streets.
(2) 
Intersections of more than two streets at one point shall not be permitted. Dead-end streets shall not be permitted, unless the requirements of Subsection E or F are met. Half streets shall not be permitted.
B. 
Topography. Proposed streets shall be planned to conform to the contour of the land, to the fullest extent possible to provide buildable lots, to have a suitable alignment and grade and to allow proper drainage.
C. 
Street grades. Minimum and maximum grades shall be provided on all streets in accordance with the requirements specified in the Township Construction Standards.
D. 
Right-of-way and paving widths; curbs; shoulders.
(1) 
Minimum widths of rights-of-way and minimum widths of paving shall be provided in accordance with the requirements specified in the Township Construction Standards. All streets shall be paved in accordance with the Township Construction Standards.
(2) 
Curbs shall be provided on all streets in accordance with the Township Construction Standards.
(3) 
Street shoulders shall be constructed which are uniformly and thoroughly compacted by rolling and which are level with the tops of curbs.
E. 
Culs-de-sac. A cul-de-sac shall not be approved when a through street is practical and shall not be more than 500 feet in length, unless an intermediate turnaround is provided at a distance of every 500 feet and a modification or exception to the maximum five-hundred-foot length of the cul-de-sac is granted in accordance with the requirements of Article IX of this chapter. A cul-de-sac shall have a minimum right-of-way radius and an outer minimum paving radius as specified in the Design Standards. The maximum grade of the turnaround portion of the cul-de-sac shall be 5%.
F. 
Temporary turnarounds. A temporary turnaround may be required where a road is constructed to an adjoining property line or where the terminus of a road adjoins property in a future phase of the plan. The temporary turnaround shall be paved. The right-of-way radius required for a temporary turnaround shall be a minimum of 50 feet and the outer paving radius of the temporary turnaround shall be 42 feet.
G. 
Visibility.
(1) 
No fence, hedges, shrubbery, walls, planting (other than tress and grass) or similar obstructions shall be located within the right-of-way, and no such obstruction shall obscure visibility at any intersection. The location of fences and walls shall be further subject to the requirements of the Township Zoning Ordinance.
(2) 
A clear sight triangle, as defined by this chapter, shall be maintained free of any obstructions at intersections so that there shall be a minimum clear sight triangle measured along the center line from the points of intersection in accordance with the requirements specified in the Township Construction Standards. The clear sight triangle shall be shown on the final plat for recording.
H. 
Street names. All new street names shall be approved by the Township and the Post Office. Names of new streets shall be sufficiently different in sound and spelling from existing names of streets in the Township or in the 911 service area so as not to cause confusion. A street which is planned as a continuation of an existing street shall bear the same name. Street signs shall be provided in accordance with § 215-69 of this chapter.
I. 
Sidewalks. The width and location of sidewalks shall conform to the standards specified in the Township Construction Standards. All sidewalks shall be constructed in accordance with the Township Construction Standards.
J. 
Crosswalks. Crosswalks may be required wherever necessary to facilitate pedestrian circulation and to give access to community facilities such as parks, playgrounds, schools or public buildings.
Service streets, as defined by this chapter, may be permitted in commercial and industrial developments where needed for loading, unloading or secondary access. Service streets shall be constructed in accordance with Township Construction Standards and shall meet the minimum design standards shown in Appendix I[1] for local streets, except that the minimum right-of-way width may be reduced to 30 feet and the minimum cartway width may be reduced to 20 feet.
Easements for sanitary sewers, water lines and stormwater management facilities shall be required to have a minimum width of 20 feet. Where a subdivision or land development is or will be traversed by a watercourse, there shall be provided a stormwater easement or drainage right-of-way of a width sufficient for the purpose, but not less than 20 feet.
The following standards shall apply to all lots proposed to be subdivided or developed in accordance with this chapter.
A. 
Area.
(1) 
Minimum lot areas shall conform to the requirements of the Township Zoning Ordinance.
(2) 
When a tract is subdivided into lots that are larger than the minimum lot area required by the Zoning Ordinance, such lots or parcels shall be so arranged as to permit a logical location and opening of future streets and resubdividing with provisions for adequate utility connections for each subdivision.
B. 
Frontage. All lots created by a subdivision shall have frontage along the right-of-way of a public street, and the width of the frontage shall conform to the requirements of the Township Zoning Ordinance. Every lot shall be accessible to emergency service, public safety and fire-fighting vehicles and equipment.
C. 
Double frontage. Double frontage lots shall be avoided; however, where a double frontage lot is the only practical alternative, vehicular access shall be limited to only one street and that street shall be the street with the lower volume of traffic, if physically feasible. The final plan shall contain a notation restricting vehicular access to one street frontage.
D. 
Side lines. Whenever practical, the side lines of a lot shall be at right angles or radial to the right-of-way lines of streets.
E. 
Front building lines. Front building lines of lots shall conform to the minimum requirements of the Township Zoning Ordinance and shall be shown on the final plat.
F. 
Grading. Lots shall be graded to provide drainage away from buildings, and water shall be drained to the street, rather than to adjoining property. The developer shall be required to provide drains or other drainage facilities, as approved by the Township Engineer, to drain off surface water within the development.
G. 
Driveways.
(1) 
No driveway shall have a slope of more than 12%.
(2) 
Driveways intersecting Township streets shall be constructed in accordance with the Township Construction Standards. Driveways intersecting state roads shall be constructed in accordance with the Pennsylvania Department of Transportation Design Manual, Part 2, Ordinance 18. Driveways entering county roads shall conform to the requirements of and shall be subject to a permit from the Allegheny County Department of Public Works.
H. 
Accessibility. Every lot, building and structure shall be accessible to emergency and public safety vehicles.
I. 
House numbers. House numbers shall be assigned by the developer, subject to the approval of the U. S. Postal Service, and shall be posted at each house so as to be easily visible and readable from the street.
[Amended 3-15-2004 by Ord. No. 1-2004; 11-15-2004 by Ord. No. 12-2004; 11-14-2018 by Ord. No. 7-2018]
A. 
General provisions.
(1) 
Short title. This section shall be known and may be cited as the "Township of South Fayette Stormwater Management Ordinance."
(2) 
Statement of findings. The governing body of the municipality finds that:
(a) 
Inadequate management of accelerated runoff of stormwater resulting from development throughout a watershed increases runoff volumes, flows and velocities, contributes to erosion and sedimentation, overtaxes the carrying capacity of streams and storm sewers, greatly increases the cost of public facilities to carry and control stormwater, undermines floodplain management and flood control efforts in downstream communities, reduces groundwater recharge, threatens public health and safety, and increases nonpoint source pollution of water resources.
(b) 
A comprehensive program of stormwater management (SWM), including regulation of development and activities causing accelerated runoff, is fundamental to the public health, safety, and welfare and the protection of people of the Commonwealth, their resources, and the environment.
(c) 
Stormwater is an important water resource that provides groundwater recharge for water supplies and supports the base flow of streams.
(d) 
The use of green infrastructure (GI) and low impact development (LID) are intended to address the root cause of water quality impairment by using systems and practices which use or mimic natural processes to: infiltrate and recharge, evapotranspire, and/or harvest and use precipitation near where it falls to earth. Green infrastructure practices and LID contribute to the restoration or maintenance of predevelopment hydrology.
(e) 
Federal and state regulations require certain municipalities to implement a program of stormwater controls. These municipalities are required to obtain a permit for stormwater discharges from their separate storm sewer systems under the National Pollutant Discharge Elimination System (NPDES) program.
(3) 
Purpose. The purpose of this section is to promote health, safety, and welfare within the municipality and its watershed by minimizing the harms and maximizing the benefits described in Subsection A(2) of this section, through provisions designed to:
(a) 
Meet legal water quality requirements under state law, including regulations at 25 Pa. Code 93 to protect, maintain, reclaim, and restore the existing and designated uses of the waters of this Commonwealth.
(b) 
Preserve natural drainage systems.
(c) 
Manage stormwater runoff close to the source, reduce runoff volumes and mimic predevelopment hydrology.
(d) 
Provide procedures and performance standards for stormwater planning and management.
(e) 
Maintain groundwater recharge to prevent degradation of surface and groundwater quality and to otherwise protect water resources.
(f) 
Prevent scour and erosion of stream banks and streambeds.
(g) 
Provide proper operation and maintenance of all stormwater best management practices (BMPs) that are implemented within the municipality.
(h) 
Provide standards to meet NPDES permit requirements.
(4) 
Statutory authority. The municipality is empowered to regulate land use activities that affect runoff by the authority of the Act of July 31, 1968, P.L. 805, No. 247. The Pennsylvania Municipalities Planning Code[1]; as amended, and/or the Act of October 4, 1978, P.L. 864 (Act 167), 32 P.S. § 680.1, et seq., as amended, The Stormwater Management Act.
[1]
Editor's Note: See 53 P.S. § 10101 et seq.
(5) 
Applicability. All regulated activities and all activities that may affect stormwater runoff, including land development and earth disturbance activity, are subject to regulation by this section.
(6) 
Repealer. Any other ordinance provision(s) or regulation of the municipality inconsistent with any of the provisions of this section is hereby repealed to the extent of the inconsistency only.
(7) 
Severability. In the event that a court of competent jurisdiction declares any section or provision of this section invalid, such decision shall not affect the validity of any of the remaining provisions of this section.
(8) 
Compatibility with other requirements. Approvals issued and actions taken under this section do not relieve the applicant of the responsibility to secure required permits or approvals for activities regulated by any other code, law, regulation or ordinance.
(9) 
Erroneous permit. Any permit or authorization issued or approved based on false, misleading or erroneous information provided by an applicant is void without the necessity of any proceedings for revocation. Any work undertaken or use established pursuant to such permit or other authorization is unlawful. No action may be taken by a board, agency or employee of the municipality purporting to validate such a violation.
(10) 
Waivers.
(a) 
If the municipality determines that any requirement under this section cannot be achieved for a particular regulated activity the municipality may, after an evaluation of alternatives, approve measures other than those in this section, subject to Subsection A(10)(b). The proposed area of disturbance shall be less than one acre. The request for a modification or waiver shall originate with the landowner, shall be in writing, and shall accompany the stormwater management site plan submitted to the municipality. The request shall provide the facts on which the request is based, the provisions of the ordinance involved, and the proposed modification. The designated plan reviewer shall review the request to determine if it meets the requirements of the ordinance, including Subsection A(10)(b) below. If acceptable to the municipality, the municipality may grant the waiver or modification.
(b) 
Waivers or modifications of the requirements of this section may be approved by the municipality if enforcement will exact undue hardship because of unique physical circumstances or conditions peculiar to the land in question, provided that the modifications will not be contrary or detrimental to the public interest and will achieve the intended outcome, and that the purpose of the ordinance is preserved. Hardship must be due to such unique physical circumstances or conditions and not to circumstances or conditions generally created by the provisions of the Stormwater Management Ordinance. Cost or financial burden shall not be considered a hardship. Modifications shall not substantially or permanently impair the appropriate use or development of adjacent property. A request for modifications shall be in writing and accompany the stormwater management site plan submission, as directed in Subsection A(10)(a) above.
(c) 
No waiver or modification of any regulated stormwater activity involving earth disturbance greater than or equal to one acre may be granted by the municipality.
(d) 
This section shall not apply to requests for waiver or modification to the provisions of Subsection E, Design criteria. All requests for waivers or modifications from Subsection E shall be reviewed by the municipality for applications of any size earth disturbance.
(11) 
Version of regulations and standards. Any reference to a statute, regulation or standard, shall be interpreted to refer to the latest or most current version of that document.
(12) 
Disclaimer of liability.
(a) 
For regulatory purposes, the degree of stormwater management sought by the provisions of this section is considered reasonable. This section shall not impose upon the municipality any legal duty in addition to those duties otherwise imposed under the Stormwater Management Act[2] upon the municipality, any appointed or elected official, employee or representative of the municipality. It is not the intention of the municipality to guarantee the elimination of harm resulting from stream flow, floods, rain, snow, or stormwater runoff; or erosion resulting therefrom. It is the intention of the municipality to create reasonable stormwater management regulations which balance several competing interests in an appropriate fashion with the emphasis on public safety.
[2]
Editor's Note: See 32 P.S. § 680.1 et seq.
(b) 
This section does not imply that areas within or outside any identified flood-prone area will be free from flooding or flood damages.
(c) 
Neither the granting of any approval under this section, nor the compliance with the provisions of this section, or with any condition imposed by the municipality or a Municipality official hereunder, shall relieve any person from any responsibility for damage to persons or property resulting therefrom, or as otherwise imposed by law, nor impose any liability upon the municipality for damages to person or property.
(d) 
The granting of a permit which includes any stormwater management facilities shall not constitute a representation, guarantee, or warranty of any kind by the municipality, or by an official, employee, or consultant thereof, of the practicability or safety of any structure, use, or other plan proposed, and shall create no liability upon or cause of action against the municipality, or an official, employee, or consultant thereof, for any damage that may result pursuant thereto.
B. 
Definitions.
(1) 
For the purposes of this section, certain terms and words used herein shall be interpreted as follows:
(a) 
Words used in the present tense include the future tense; the singular number includes the plural, and the plural number includes the singular; words of masculine gender include feminine gender; and words of feminine gender include masculine gender.
(b) 
The word "includes" or "including" shall not limit the term to the specific example but is intended to extend its meaning to all other instances of like kind and character.
(c) 
The words "shall" and "must" are mandatory; the words "may" and "should" are permissive.
(2) 
These definitions do not necessarily reflect the definitions contained in pertinent regulations or statutes and are intended for this section only.
ACT 167
The municipality is empowered to regulate land use activities that affect runoff and surface and groundwater quality and quantity by the authority of the Act of October 4, 1978, P.L. 864 (Act 167), 32 P.S. § 680.1, et seq., as amended, the "Storm Water Management Act."
AGRICULTURAL ACTIVITY
Activities associated with agriculture, such as agricultural cultivation, agricultural operation, and animal heavy use areas. This includes the work of producing crops, including tillage, land clearing, plowing, disking, harrowing, planting, harvesting crops or the pasturing and raising of livestock and installation of conservation measures. Construction of new buildings or impervious area is not considered an agricultural activity.
APPLICANT
A landowner, developer, or other person who has filed an application to the municipality for approval to engage in any regulated activity at a project site in the municipality.
BEST MANAGEMENT PRACTICE (BMP)
Activities, facilities, designs, measures, or procedures used to manage stormwater impacts from regulated activities, to meet state water quality requirements, to promote groundwater recharge, and to otherwise meet the purposes of this section. Stormwater BMPs are commonly grouped into one of two broad categories or measures: "structural" or "nonstructural." In this section, nonstructural BMPs or measures refer to operational and/or behavior-related practices that attempt to minimize the contact of pollutants with stormwater runoff, whereas structural BMPs or measures are those that consist of a physical device or practice that is installed to capture and treat stormwater runoff. Structural BMPs include, but are not limited to, a wide variety of practices and devices, from large-scale retention ponds and constructed wetlands, to small-scale underground treatment systems, infiltration facilities, filter strips, low impact design, bioretention, wet ponds, permeable paving, grassed swales, riparian or forested buffers, sand filters, detention basins, and manufactured devices. Structural stormwater BMPs are permanent appurtenances to the project site.
CONSERVATION DISTRICT
A conservation district, as defined in Section 3(c) of the Conservation District Law [(3 P.S. § 851(c)] that has the authority under a delegation agreement executed with DEP to administer and enforce all or a portion of the regulations promulgated under 25 Pa. Code 102.
DEP
The Pennsylvania Department of Environmental Protection.
DESIGN STORM
The magnitude and temporal distribution of precipitation from a storm event measured in probability of occurrence (e.g., a five-year storm) and duration (e.g., 24 hours) used in the design and evaluation of stormwater management systems. Also see "return period."
DESIGNATED PLAN REVIEWER
A qualified professional as defined herein, or organization such as the Allegheny County Conservation District, that has been designated by the municipality to be the reviewer of SWM site plans for the municipality, and shall be understood to be the reviewer where indicated as the municipality within this section.
DETENTION BASIN
An impoundment designed to collect and retard stormwater runoff by temporarily storing the runoff and releasing it at a predetermined rate. Detention basins are designed to drain completely in a designed period after a rainfall event, and to become dry until the next rainfall event.
DETENTION VOLUME
The volume of runoff that is captured and released into the waters of the Commonwealth at a controlled rate.
DEVELOPMENT SITE (SITE)
See "project site."
DISTURBED AREA
An unstabilized land area where an earth disturbance activity is occurring or has occurred.
EARTH DISTURBANCE ACTIVITY
A construction or other human activity which disturbs the surface of the land, including, but not limited to, clearing and grubbing; grading; excavations; embankments; road maintenance; building construction; and the moving, depositing, stockpiling, or storing of soil, rock, or earth materials.
EROSION
The natural process by which the surface of the land is worn away by water, wind, or chemical action.
EXISTING CONDITION
The dominant land cover during the five-year period immediately preceding a proposed regulated activity.
FEMA
Federal Emergency Management Agency.
FLOODPLAIN
Any land area susceptible to inundation by water from any natural source or delineated by applicable FEMA maps and studies as being a special flood hazard area. Also includes areas that comprise Group 13 Soils, as listed in Appendix A of the Pennsylvania DEP Technical Manual for Sewage Enforcement Officers (as amended or replaced from time to time by DEP).
FLOODWAY
The channel of the watercourse and those portions of the adjoining floodplains that are reasonably required to carry and discharge the 100-year flood. Unless otherwise specified, the boundary of the floodway is as indicated on maps and flood insurance studies provided by FEMA. In an area where no FEMA maps or studies have defined the boundary of the 100-year floodway, it is assumed — absent evidence to the contrary —that the floodway extends from the stream to 50 feet from the top of the bank of the stream.
FOREST MANAGEMENT/TIMBER OPERATIONS
Planning and activities necessary for the management of forestland. These include conducting a timber inventory, preparation of forest management plans, silvicultural treatment, cutting budgets, logging road design and construction, timber harvesting, site preparation, and reforestation.
GREEN INFRASTRUCTURE
Systems and practices that use or mimic natural processes to infiltrate, evapotranspire, or reuse stormwater on the site where it is generated.
GROUNDWATER
Water beneath the earth's surface that supplies wells and springs and is within the saturated zone of soil and rock.
GROUNDWATER RECHARGE
The replenishment of existing natural underground water supplies from precipitation or overland flow.
HYDROLOGIC SOIL GROUP (HSG)
Infiltration rates of soils vary widely and are affected by subsurface permeability as well as surface intake rates. Soils are classified into four HSGs (A, B, C, and D) according to their minimum infiltration rate, which is obtained for bare soil after prolonged wetting. The NRCS defines the four groups and provides a list of most of the soils in the United States and their group classification. The soils in the area of the development site may be identified from a soil survey report that can be obtained from local NRCS offices or conservation district offices. Soils become less pervious as the HSG varies from A to D (NRCS[3]).
IMPERVIOUS SURFACE (IMPERVIOUS AREA)
A surface that prevents the infiltration of water into the ground. Impervious surfaces (or areas) shall include, but not be limited to: roofs; additional indoor living spaces, patios, garages, storage sheds and similar structures; and any new streets or sidewalks. Decks, parking areas, and driveway areas are counted as impervious areas if they directly prevent infiltration. Any surface areas designed to initially be gravel or crushed stone shall be assumed to be impervious surfaces. In addition, any surface designed to be constructed of permeable, pervious or porous concrete, asphalt, or pavers shall be considered an impervious surface.
INFILTRATION
Movement of surface water into the soil, where it is absorbed by plant roots, evaporated into the atmosphere, or percolated downward to recharge groundwater.
INVASIVE SPECIES
DCNR defines invasive plants as those species that are not native to the state, grow aggressively, and spread and displace native vegetation. (See http://www.dcnr.state.pa.us/cs/groups/public/documents/document/dcnr_010314.pdf for a list of invasive species.)
LAND DEVELOPMENT (DEVELOPMENT)
Inclusive of any or all of the following meanings: the improvement of one lot or two or more contiguous lots, tracts, or parcels of land for any purpose involving a group of two or more buildings or the division or allocation of land or space between or among two or more existing or prospective occupants by means of, or for the purpose of streets, common areas, leaseholds, condominiums, building groups, or other features; any subdivision of land; development in accordance with § 503(1.1) of the PA Municipalities Planning Code.
LOW IMPACT DEVELOPMENT (LID)
Site design approaches and small-scale stormwater management practices that promote the use of natural systems for infiltration, evapotranspiration, and reuse of rainwater. LID can be applied to new development, urban retrofits, and revitalization projects. LID utilizes design techniques that infiltrate, filter, evaporate, and store runoff close to its source. Rather than rely on costly large-scale conveyance and treatment systems, LID addresses stormwater through a variety of small, cost-effective landscape features located on-site.
MUNICIPALITY
Township of South Fayette, Allegheny County, Pennsylvania.
NATIVE VEGETATION
Plant species that have historically grown in Pennsylvania and are not invasive species as defined herein.
NRCS
USDA Natural Resources Conservation Service (previously SCS).
PEAK DISCHARGE
The maximum rate of stormwater runoff from a specific storm event.
PERVIOUS AREA
Any area not defined as impervious.
PROJECT SITE
The specific area of land where any regulated activities in the municipality are planned, conducted, or maintained.
QUALIFIED PROFESSIONAL
Any person licensed by the Pennsylvania Department of State or otherwise qualified under Pennsylvania law to perform the work required by this section.
REGULATED ACTIVITIES
Any earth disturbance activities or any activities that involve the alteration or development of land in a manner that may affect stormwater runoff.
REGULATED EARTH DISTURBANCE ACTIVITY
Activity involving earth disturbance subject to regulation under 25 Pa. Code 92, 25 Pa. Code 102, or the Clean Streams Law.[4]
RELEASE RATE
The percentage of existing conditions peak rate of runoff from a site or subarea to which the proposed conditions peak rate of runoff must be reduced to protect downstream areas.
RELEASE RATE DISTRICT
A watershed or portion of a watershed for which a release rate has been established by an adopted Act 167 stormwater management plan.
RETENTION VOLUME/REMOVED RUNOFF
The volume of runoff that is captured and not released directly into the surface waters of this Commonwealth during or after a storm event.
RETURN PERIOD
The average interval, in years, within which a storm event of a given magnitude can be expected to occur one time. For example, the twenty-five-year return period rainfall would be expected to occur on average once every 25 years; or stated in another way, the probability of a twenty-five-year storm occurring in any one year is 0.04 (i.e., a 4% chance).
RIPARIAN BUFFER
A permanent vegetated area of trees and shrubs located adjacent to streams, lakes, ponds and wetlands.
RUNOFF
Any part of precipitation that flows over the land.
SEDIMENT
Soils or other materials transported by surface water as a product of erosion.
STATE WATER QUALITY REQUIREMENTS
The regulatory requirements to protect, maintain, reclaim, and restore water quality under Title 25 of the Pennsylvania Code and the Clean Streams Law.
STORMWATER
Drainage runoff from the surface of the land resulting from precipitation or snow or ice melt.
STORMWATER MANAGEMENT FACILITY
Any structure, natural or man-made, that, due to its condition, design, or construction, conveys, stores, or otherwise affects stormwater runoff. Typical stormwater management facilities include, but are not limited to detention and retention basins; open channels; storm sewers; pipes; and infiltration facilities.
STORMWATER MANAGEMENT SITE PLAN
The plan prepared by the developer or the developer's representative indicating how stormwater runoff will be managed at the development site in accordance with this section. Stormwater management site plan will be designated as SWM site plan throughout this section.
STREAM
A channel or conveyance of surface water having a defined bed and banks, whether natural or artificial, with perennial or intermittent flow.
SUBDIVISION
As defined in The Pennsylvania Municipalities Planning Code,[5] Act of July 31, 1968, P.L. 805, No. 247.
USDA
United States Department of Agriculture.
WATERCOURSE
See "stream."
WATERS OF THIS COMMONWEALTH
Any and all rivers, streams, creeks, rivulets, impoundments, ditches, watercourses, storm sewers, lakes, dammed water, wetlands, ponds, springs, and all other bodies or channels of conveyance of surface and underground water, or parts thereof, whether natural or artificial, within or on the boundaries of this Commonwealth.
WATERSHED
Region or land area drained by a river, watercourse, or other surface water of this Commonwealth to a downstream point.
WETLAND
Areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions, including swamps, marshes, bogs, and similar areas.
[3]
See Subsection J(1) and (2).
[4]
Editor's Note: See 35 P.S. § 691.1 et seq.
[5]
Editor's Note: See 53 P.S. § 10101 et seq.
C. 
Stormwater management standards.
(1) 
General requirements.
(a) 
For all regulated activities, unless preparation of an SWM site plan is specifically exempted in Subsection C(2):
[1] 
Preparation and implementation of an approved SWM site plan is required.
[2] 
No regulated activities shall commence until the municipality issues written approval of an SWM site plan, which demonstrates compliance with the requirements of this section.
(b) 
SWM site plans approved by the municipality, in accordance with Subsection D(6) shall be on site throughout the duration of the regulated activity.
(c) 
These standards apply to the landowner and any person engaged in regulated activities.
(d) 
For all regulated earth disturbance activities, erosion and sediment control BMPs shall be designed, implemented, operated, and maintained during the regulated earth disturbance activities (e.g., during construction) to meet the purposes and requirements of this section and to meet all requirements under Title 25 of the Pennsylvania Code and the Clean Streams Law. Various BMPs and their design standards are listed in the Erosion and Sediment Pollution Control Program Manual (E&S Manual[6]), No. 363-2134-008, as amended and updated. Comment on the adequacy of the erosion and sedimentation controls may be provided by the municipality per the requirements of Allegheny County Conservation District.
[6]
See Subsection J(4)
(e) 
Impervious areas:
[1] 
The measurement of impervious areas shall include all of the impervious areas in the total proposed development even if development is to take place in stages.
[2] 
For development taking place in stages, the entire development plan must be used in determining conformance with this section.
[3] 
For projects that add impervious area to a parcel, the total impervious area on the parcel is subject to the requirements of this section; except that the volume controls in Subsection C(3) and the peak rate controls of Subsection C(4) do not need to be retrofitted to existing impervious areas that are not being altered by the proposed regulated activity.
(f) 
Stormwater flows onto adjacent or downstream property shall not be created, increased, decreased, relocated, impeded, or otherwise altered without written notification of the affected property owner(s). Notification shall include a description of the proposed development and the stormwater flows that are being created, increased, decreased, relocated, impeded, or otherwise altered. Adjacent property shall at a minimum include any property having a shared boundary with the subject property of the SWM site plan, however, if in the judgement of the designated plan reviewer additional properties are being affected, additional notification may be required. Proof of notification (signed postal receipt for example) shall be included as part of the SWM Plan submission to the municipality. Such stormwater flows shall be subject to the requirements of this section.
(g) 
All regulated activities shall include such measures as necessary to:
[1] 
Protect health, safety, and property.
[2] 
Meet the water quality goals of this section by implementing measures to:
[a] 
Minimize disturbance to floodplains, wetlands, and wooded areas.
[b] 
Maintain or extend riparian buffers.
[c] 
Avoid erosive flow conditions in natural flow pathways.
[d] 
Minimize thermal impacts to waters of this Commonwealth.
[e] 
Disconnect impervious surfaces by directing runoff to pervious areas, wherever possible.
[3] 
Incorporate methods described in the Pennsylvania Stormwater Best Management Practices Manual (BMP Manual[7]). If methods other than green infrastructure and LID methods are proposed to achieve the volume and rate controls required under this section, the SWM site plan must include a detailed justification, acceptable to the designated plan reviewer, demonstrating that the use of LID and green infrastructure is not practicable.
[7]
See Subsection J(3)
(h) 
Infiltration BMPs should be dispersed throughout the project site at strategic locations, made as shallow as practicable, and located to maximize use of natural on-site infiltration features while still meeting the other requirements of this section.
(i) 
Normally dry, open top, storage facilities should completely drain both the volume control and rate control capacities over a period of time not less than 24 and not more than 72 hours from the end of the design storm. Infiltration tests performed at the facility locations and proposed basin bottom depths, in accordance with the BMP Manual, must support time-to-empty calculations if infiltration is a factor.
(j) 
The design storm precipitation depths to be used in the analysis of peak rates of discharge shall be as obtained in PennDOT's Drainage Manual, Publication 584, Appendix 7A; or obtained from the latest version of the Precipitation-Frequency Atlas of the United States, National Oceanic and Atmospheric Administration (NOAA), National Weather Service, Hydrometeorological Design Studies Center, Silver Spring, Maryland. NOAA's Atlas 14[8] can be accessed at: http://hdsc.nws.noaa.gov/hdsc/pfds/.
[8]
See Subsection J(5)
(k) 
For all regulated activities, SWM BMPs shall be designed, implemented, operated, and maintained to meet the purposes and requirements of this section and to meet all requirements under Title 25 of the Pennsylvania Code, the Clean Streams Law, and the Storm Water Management Act.
(l) 
Various BMPs and their design standards are listed in the BMP Manual.[9]
[9]
See Subsection J(3)
(m) 
The municipality may, after consultation with DEP, approve measures for meeting the state water quality requirements other than those in this section, provided that they meet the minimum requirements of, and do not conflict with, state law including, but not limited to, the Clean Streams Law.[10]
[10]
Editor's Note: See 35 P.S. § 691.1 et seq.
(2) 
Exemptions.
(a) 
Regulated activities that result in cumulative earth disturbances less than 0.25 acre and propose an increase in impervious area of less than 5,000 square feet are exempt from the requirements in Section 401 of this section except as provided in Subsection C(2)(b) below.
(b) 
Earth disturbances between 0.05 acre (2,178 square feet) and 0.25 acre (10,890 square feet) of earth disturbance must submit a SWM site plan to the municipality which shall consist of the following items and related supportive material needed to determine compliance with Subsection C(3) through (5). The applicant can use the protocols in the small project stormwater management site plan (Appendix C).
[1] 
General description of proposed stormwater management techniques, including construction specifications of the materials to be used for stormwater management facilities.
[2] 
An erosion and sediment control plan, including all reviews and letters of adequacy from the Conservation District where appropriate.
[3] 
Limits of earth disturbance, including the type and amount of impervious area that is proposed; proposed structures, roads, paved areas, and buildings; and a statement, signed by the applicant, acknowledging that any revision to the approved drainage plan must be approved by the municipality, and that a revised erosion and sediment control plan must be submitted to the municipality or Conservation District for approval.
[4] 
All stormwater management facilities must be located on a plan and described in detail; and all calculations, assumptions, and criteria used in the design of the stormwater management facilities must be shown.
(c) 
Agricultural activity is exempt from the SWM site plan preparation requirements of this section, provided the activities are performed according to the requirements of 25 Pa. Code Chapter 102.
(d) 
Forest management and timber operations are exempt from the SWM site plan preparation requirements of this section provided the activities are performed according to the requirements of 25 Pa. Code Chapter 102.
(e) 
Roadway resurfacing and maintenance projects, which do not increase impervious area, and underground infrastructure projects are exempt, from the provisions of this section, provided the activities meet the requirements of all other Municipal, state and federal requirements. Exemptions from any provisions of this section shall not relieve the applicant from the requirements in Subsection C(1)(d) through (j).
(f) 
The municipality may deny or revoke any exemption pursuant to this section at any time for any project that the municipality believes may pose a threat to public health and safety or the environment.
(g) 
Voluntary Green Stormwater Infrastructure (GSI) retrofit projects that are solely intended to better manage runoff from existing development and are not part of new development or redevelopment, are exempt from the stormwater management provisions of this section. This does not exempt such projects from any other Municipal, state, or federal regulation.
(h) 
Use of land for home gardening or landscaping improvements, provided that such improvements do not significantly alter the runoff characteristics of the land.
(3) 
Volume controls. The green infrastructure and low impact development practices provided in the BMP Manual[11] shall be utilized for all regulated activities wherever possible. Water volume controls shall be implemented using the Design Storm Method in Subsection C(3)(a) or the Simplified Method in Subsection C(3)(b) below. Water volume controls shall be implemented using the Design Storm Method in Subsection C(3)(a) or the Simplified Method in Subsection C(3)(b) below, or alternative design criteria as allowed by PA Code Title 25, Chapter 102.
(a) 
The Design Storm Method (CG-1 in the BMP Manual[12] is applicable as a method to any size of regulated activity. This method requires detailed modeling based on site conditions. The following shall be incorporated into the CG-1 method:
[1] 
Do not increase the post-development total runoff volume for all storms equal to or less than the two-year, twenty-four-hour duration precipitation.
[2] 
At least the first one inch of runoff from the net increase in impervious surfaces shall be permanently removed from the runoff flow, i.e., it shall not be released into the surface waters of this Commonwealth. Removal options include reuse, evaporation, transpiration, and infiltration. If the developer provides justification that the listed removal options are not feasible, and the designated plan reviewer agrees, runoff shall be detained in a facility designed for a forty-eight- to seventy-two-hour dewatering time in an area with a dedicated stormwater system (not contributory to a combined sewer system) and shall be detained in a facility designed for a seventy-two-hour dewatering time in an area contributory to a combined sewer system before discharge to local stormwater systems or the environment. Justification, as prepared and sealed by a qualified professional, for assertion that permanent removal is not feasible must be provided, at a minimum, in the form of field measured infiltration rate testing and geotechnical evaluation of the existing site soils with regard to the impact of proposed infiltration. Applications omitting this justification, including infiltration rate testing will be considered incomplete. BMPs proposing use of extended detention in lieu of permanent reduction through the listed methods shall include a valve to adjust or regulate dewatering time to achieve the performance standards noted herein. The valve system shall include an inspection/monitoring port for review of dewatering.
[3] 
For modeling purposes:
[a] 
Existing (predevelopment) nonforested pervious areas must be considered meadow in good condition.
[b] 
20% of existing impervious area, when present, shall be considered meadow in good condition in the model for existing conditions.
[12]
See Subsection J(3)
(b) 
The Simplified Method (CG-2 in the BMP Manual[13]) provided below is independent of site conditions and should be used if the Design Storm Method is not followed. This method is not applicable to regulated activities greater than one acre or for projects that require design of stormwater storage facilities. For new impervious surfaces:
[1] 
Stormwater facilities shall capture at least the first two inches of runoff from the net increase in impervious surfaces.
[2] 
At least the first one inch of runoff from the net increase in impervious surfaces shall be permanently removed from the runoff flow, i.e., it shall not be released into the surface waters of this Commonwealth. Removal options include reuse, evaporation, transpiration, and infiltration. If the developer provides justification that the listed removal options are not feasible, and the designated plan reviewer agrees, runoff shall be detained in a facility designed for a twenty-four-hour dewatering time in an area with a dedicated stormwater system (not contributory to a combined sewer system) and shall be detained in a facility designed for a seventy-two-hour dewatering time in an area contributory to a combined sewer system before discharge to local stormwater systems or the environment.
[3] 
Wherever possible, infiltration facilities should be designed to accommodate infiltration of the entire permanently removed runoff; however, in all cases at least the first 0.5 inch of the permanently removed runoff should be infiltrated.
[4] 
This method is exempt from the requirements of Subsection C(4), Rate controls, if the project qualifies for exemption by the provisions of Subsection C(2)(a).
[13]
See Subsection J(3)
[11]
See Subsection J(3)
(4) 
Rate controls.
(a) 
For areas not covered by a release rate map from an approved Act 167 Stormwater Management Plan:
[1] 
Post-development discharge rates shall not exceed the predevelopment discharge rates for the one-, two-, five-, ten-, twenty-five-, fifty-, and 100-year, twenty-four-hour storm events. This is the equivalent to a 100% release rate area when compared to those rates shown in the maps contained in Appendix A (Release Rate Management Districts[14]). This Predevelopment to Post-development control is not to be misconstrued as the same as the conditional direct discharge" areas on the Release Rate maps. For comparison of peak flow rates, flows shall be rounded to a tenth of a cubic foot per second (cfs). If it is shown that the peak rates of discharge indicated by the post-development analysis are less than or equal to the peak rates of discharge indicated by the predevelopment analysis for one-, two-, five-, ten-, twenty-five-, fifty-, and 100-year, twenty-four-hour storms, then the requirements of this section have been met. Otherwise, the applicant shall provide additional controls as necessary to satisfy the peak rate of discharge requirement. Peak flows should be computed using the methods included in the chapter titled "Stormwater Calculations and Methodology" of the PADEP Stormwater Management BMP Manual. Except, however, where documented downstream flooding problems exist, the municipality may impose a 50% reduced release rate criteria.
[14]
Said Appendix is included as an attachment to this section.
(b) 
For areas covered by a release rate map from an approved Act 167 Stormwater Management Plan:
[1] 
For the one-, two-, five-, ten-, twenty five-, fifty-, and 100-year, twenty-four-hour storm events, the post-development peak discharge rates will follow the applicable approved release rate maps. These maps are contained in Appendix A (Release Rate Management Districts) of this section, For comparison of peak flow rates, flows shall be rounded to a tenth of a cubic foot per second (cfs). For any areas not shown on the release rate maps, the post-development discharge rates shall not exceed the predevelopment discharge rates for the specified design events. Peak flows should be computed using the methods included in Chapter 8 of the PADEP Stormwater Management BMP Manual.
(5) 
Riparian buffers.
(a) 
In order to protect and improve water quality, a riparian buffer easement shall be created and recorded as part of any subdivision or land development that encompasses a riparian buffer. The intent of this section in establishing a riparian buffer is to protect and improve stream water quality. The riparian buffer is intended to slow overland flow to the stream through the presence of native grasses, trees and shrubs, allowing infiltration/groundwater recharge; causing deposition of sediment, nutrients, pesticides, and other pollutants in the buffer rather than in the stream; and reducing erosion by providing stream bank stabilization. The trees provide shade for streams; keeping waters cooler and reducing evaporation.
(b) 
Except as required by PA Code Title 25 Chapter 102, the riparian buffer easement shall be required for all streams (as defined in Subsection B) with a contributing watershed area of greater than 10 acres. The riparian buffer easement shall be measured to be a minimum of 35 feet from the top of the streambank (on each side).
(c) 
Minimum management requirements for riparian buffers.
[1] 
No use or construction within the riparian buffer shall be permitted that is inconsistent with the intent of the riparian buffer as described in Subsection C(5)(a).
[2] 
Existing native vegetation shall be protected and maintained within the riparian buffer easement.
[3] 
Whenever practicable, invasive vegetation shall be actively removed and the riparian buffer easement shall be planted with native trees, shrubs and other vegetation to create a diverse native plant community appropriate to the intended ecological context of the site.
(d) 
The riparian buffer easement shall be enforceable by the municipality and shall be recorded in the appropriate County Recorder of Deeds Office, so that it shall run with the land and shall limit the use of the property located therein. The easement shall allow for the continued private ownership and shall count toward the minimum lot area required by zoning, unless otherwise specified in the municipal Zoning Ordinance.
(e) 
Any permitted use within the riparian buffer easement shall be conducted in a manner that will maintain the extent of the existing 100-year floodplain, improve or maintain the stream stability, and preserve and protect the ecological function of the floodplain.
(f) 
Stormwater drainage pipes shall be permitted within the riparian buffer easement, but they shall cross the easement in the shortest practical distance. Other structural stormwater management facilities are not permitted within the riparian buffer easement.
(g) 
The following conditions shall apply when public and/or private recreation trails are permitted by the municipality within the riparian buffers:
[1] 
It is preferred that trails be designed to be permeable and for nonmotorized use only; however, impermeable trails are permitted provided they have adequate drainage.
[2] 
Trails shall be designed to have the least impact on native plant species and other sensitive environmental features.
(h) 
Septic drainfields and sewage disposal systems shall not be permitted within the riparian buffer easement and shall comply with setback requirements established under 25 Pa. Code Chapter 73.
(i) 
Underground utilities shall be permitted within the riparian buffer easement; however, work shall be performed to minimize disturbance area and removal of trees. Restoration within the riparian buffer easement shall be with native species of trees, grasses, and other plantings. One tree shall be planted for each tree removed and the restoration shall be designed by a registered professional with the requisite experience. Aboveground utilities shall only be permitted to cross the easement perpendicular to the easement or in the shortest practical distance. Existing utilities may remain and be maintained as required.
D. 
Stormwater management (SWM) site plan requirements.
(1) 
Plan requirements.
(a) 
Appropriate sections from the municipality's Subdivision and Land Development Ordinance, and other applicable local ordinances, shall be followed in preparing the SWM site plans.
(b) 
The municipality shall not approve any SWM site plan that is deficient in meeting the requirements of this section. At its sole discretion and in accordance with this subsection, 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) 
The following items shall be included in the SWM site plan:
[1] 
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 D(1)(c)[3][i] below.
[2] 
The following signature block for the municipality:
"(Municipal official or designated plan reviewer (Subsection D(3)(a)), 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. (_____, except where waivers have been granted as noted on the plan. The review is based on a survey and plan prepared by others and assumes that all information is correct and valid as submitted."
[3] 
The SWM site plan shall provide the following information:
[a] 
The overall stormwater management concept for the project.
[b] 
A determination of site conditions in accordance with the BMP Manual[15]. A detailed site evaluation shall be completed for projects proposed in environmentally sensitive areas, such as brownfields.
[15]
See Subsection J(3)
[c] 
A key map showing the development site's location within the municipality's stormwater management districts, watersheds and subareas. On all site drawings, show the boundaries of the district(s), watershed(s) and subarea(s) as they are located on the development site and identify their district and watershed names and applicable subarea numbers.
[d] 
Location of the 100-year floodplain on the development site based on the municipal current Flood Insurance Rate Maps.
[e] 
Stormwater runoff design computations and documentation as specified in this section, or as otherwise necessary to demonstrate that the maximum practicable measures have been taken to meet the requirements of this section, including the recommendations and general requirements in Subsection C(1).
[f] 
Expected project time schedule.
[g] 
A soil erosion and sediment control plan, where applicable, as prepared for and submitted to the approval authority.
[h] 
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.
[i] 
Plan and profile drawings and details of all SWM BMPs, including drainage structures, pipes, open channels, and swales.
[j] 
SWM site plan shall show the property lines, dimensions of the site and the locations of existing and proposed on-lot wastewater facilities and water supply wells, property boundaries, existing and proposed topography, point(s) of interest, utilities, and potential utility conflicts.
[k] 
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 including type and schedule/frequency of maintenance activities, personnel and equipment requirements, estimated annual maintenance costs, and method of financing continuing O&M.
[l] 
A justification, acceptable to the designated plan reviewer, 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 section.
[m] 
Certification and seal of the qualified professional responsible for the preparation of the plans and report.
[n] 
Watershed maps delineating predevelopment and post-development watershed boundaries and land cover conditions, as well as the flow path and segments used to determine time of concentrations for each watershed.
[o] 
Storm sewer calculations and watershed maps delineating all sub-areas used to size and compute flow for the storm sewer system.
[p] 
Existing contours at intervals of two feet except in areas with slopes greater than 15%, in which case five-foot contour intervals may be used.
[q] 
Contours of the finished project site at intervals of two feet, except in areas with slopes greater than 15%, in which case, five-foot contour intervals may be used.
(2) 
Plan submission. Up to two copies of the SWM site plan shall be submitted as follows:
(a) 
Two copies to the municipality.
(b) 
Digital copy.
(3) 
Plan review.
(a) 
The municipality has designated the Municipal Engineer as the designated plan reviewer of SWM site plans for the municipality, and shall be understood to be the reviewer where indicated as the municipality within this section.
(b) 
SWM site plans shall be reviewed by the municipality for consistency with the provisions of this section.
(c) 
The municipality shall notify the applicant in writing within 45 days whether the SWM site plan is approved or disapproved or requires additional documentation. 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 other statute, regulation, or ordinance, the applicant will be so notified by the municipality.
(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 section, the municipality will not approve the SWM site plan unless it determines that green infrastructure and LID practices are not practicable.
(e) 
If the municipality disapproves the SWM site plan, the municipality will state the reasons for the disapproval in writing. The municipality also may approve the SWM site plan with conditions and, if so, shall provide the acceptable conditions for approval in writing.
(f) 
The applicable review fee, in accord with Subsection G must accompany a resubmission of a disapproved SWM site plan.
(4) 
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 soil or other conditions are not as stated on the SWM site plan, as determined by the designated plan reviewer, shall require a resubmission of the modified SWM site plan in accordance with this subsection.
(5) 
Resubmission of disapproved SWM site plans. 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, in accord with Subsection G must accompany a resubmission of a disapproved SWM site plan.
(6) 
Authorization to construct and term of validity. The municipality's approval of an SWM site 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. Terms of validity shall commence on the date the municipality signs the approval for an SWM site plan. If an approved SWM site plan is not completed according to Subsection D(7) 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 shall be resubmitted in accordance with Subsection D(5) of this section.
(7) 
Record drawings, completion certificate, and final inspection.
(a) 
The developer shall be responsible for providing record drawings of all SWM BMPs included in the approved SWM site plan, including, but not limited to BMP grading, outlet structure configuration and emergency spillway configuration. The record drawings and an explanation of any discrepancies with the construction plans shall be submitted to the municipality.
(b) 
The record drawing 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. The certification shall include documentation confirming field reviewed dewatering times for rate and volume control BMPs. Record drawings shall be provided in both hard copy and electronic (AutoCAD, latest edition) format.
(c) 
The municipality may conduct inspections during construction as it deems appropriate. If inspections performed by the municipality reveal deficiencies from the submitted and approved SWM site plan, the municipality may request corrective actions. Any corrective action shall be at the cost of the stormwater facility owner.
(d) 
After receipt of the completion certification by the municipality, the municipality may conduct a final inspection.
E. 
Design criteria.
(1) 
Calculation methodology.
(a) 
All computations used in conjunction with the analysis and design of stormwater management facilities shall be based on one or more of the following methods, or as otherwise approved in advance by the municipality:
[1] 
TR-55-Soil Conservation Service (SCS) Technical Release No. 55.
[2] 
TR-20-Soil Conservation Service (SCS) Technical Release No. 20.
[3] 
Modified Rational Method.
[4] 
Penn State Runoff Model.
[5] 
Virginia Tech/Penn State Runoff Model.
(b) 
These methods for determining peak discharge shall be used to:
[1] 
Determine predevelopment runoff conditions;
[2] 
Analyze the impact of development; and
[3] 
Perform calculations in the design of any detention/retention facilities used in controlling runoff.
(c) 
The SCS, Type II Rainfall Distribution shall be used for all analyses. The design storm frequencies for the watershed are:
Design Storm
24-Hour Rainfall Depth
1-Year
1.97
2-Year
2.35
5-Year
2.88
10-Year
3.30
25-Year
3.90
50-Year
4.40
100-Year
4.92
(d) 
Predevelopment conditions: The cover type for all sites will be considered to be the dominant land cover during the five-year period immediately preceding a proposed regulated activity:
[1] 
For the purposes of predevelopment peak flow rate and volume determination, existing nonforested pervious areas conditions shall be considered as meadow (good condition). Forested land areas shall be considered in good condition.
[2] 
For the purposes of predevelopment peak flow rate and volume determination, 20% of existing disturbed impervious area, when present, shall be considered meadow (good condition).
(e) 
Post-development conditions: The hydrologic parameters used to develop peak flow rates shall be reflective of anticipated soil runoff characteristics following grading and development of the site.
(f) 
Time of concentration: The minimum time of concentration for any watershed shall be six minutes. A minimum six-minute time of concentration may be assumed for any post development watershed. Calculations must be provided for all predevelopment times of concentrations. A minimum time of concentration cannot be assumed for predevelopment conditions.
(g) 
The use of the Basic Rational Method in estimating runoff may be employed in the design of the storm sewer conveyance system within the development. The storm sewer system shall be interpreted as the conduits, culverts, inlets and appurtenant features for the conveying of stormwater to, through or from a development site to the point of final discharge or control facility. The Rational Method shall not be used in the analysis of stormwater runoff from the development in its entirety or in conjunction with the design of any retention/detention facilities or other runoff control measures.
(h) 
Points of interest for analysis of pre- and post-development runoff must be selected to demonstrate compliance with the requirements of Subsection C(3) and (4) is achieved at all points where runoff exits the perimeter of the property.
(i) 
Stormwater runoff shall not be transferred from one watershed to another unless the watersheds are sub- areas of a larger watershed that are tributary to a common point of interest within or near the perimeter of the property. Transfer of runoff from one watershed to another under any other circumstances shall only be approved at the discretion of the municipality. Documentation shall be provided that peak flow rates are not increased following development and there will be no detrimental impact in downstream areas.
(j) 
The Stormwater Management Plan shall consider all of the stormwater runoff flowing over the project site. Runoff calculations shall be made to ensure that runoff from the upstream watershed area can be accommodated by the pipes, drainage easements and watercourses, etc. on the site.
(2) 
Design and construction standards, collection and conveyance facilities.
(a) 
All stormwater collection and conveyance facilities (pipes, swales, and structures) shall be designed for a 100-year design storm event, unless the runoff would naturally drain overland to a stormwater detention facility, in which case a twenty-five-year design storm event may be used. The hydraulic gradeline must be a minimum of two feet below the surface elevation of structures and within the pipe. Swales and channels shall provide at least one foot of freeboard above the energy gradeline. Backwater effects of pipes discharging under surcharge conditions shall be included.
(b) 
Runoff calculations shall include complete hydrology and hydraulic analysis of all downstream swales and pipe facilities to permanent stream discharge point, to the municipal boundary or connection to a state or county owned conveyance system.
(c) 
Manholes shall not be spaced more than 300 feet apart for pipe sizes up to 24 inches in diameter and not more than 450 feet apart for larger pipe sizes.
(d) 
No public stormwater pipe shall be less than 15 inches in diameter that conveys surface runoff. The minimum pipe slope shall be 1.0% grade or maintain velocity of two feet per square. For public storm sewer systems, only pipes related to construction of stormwater BMPs may be less than 15 inches in diameter.
(e) 
All workmanship and materials shall conform to the municipality's construction standards. In addition, all workmanship and materials shall conform to the latest edition of PennDOT Form 408 and be supplied by manufacturers or suppliers listed in PennDOT's Bulletin 15.
(f) 
Manhole and inlet castings shall conform to the Pennsylvania Department of Transportation Form 408 and PennDOT Standards for Roadway Construction. Inlet grates shall be bicycle safe. Frames and grates shall be cast iron or structural steel. Concrete frames shall not be permitted.
(g) 
All connections to existing storm sewer pipes shall be made by construction of a suitable junction box (inlet or manhole) to provide access for cleanout. No blind connections shall be permitted.
(h) 
The discharge of stormwater runoff shall be to a well-defined drainage course, which has a defined bed and bank. If stormwater runoff cannot be discharged to a defined drainage course, documentation of written permission from each downstream property owner shall be provided for all properties between the source of discharge and the defined drainage course. The use of level spreaders or similar BMPs that promote sheet flow may be permitted if the applicant provides documentation that the peak post-development 100-year discharge is no greater than predevelopment two-year discharge and a letter from the geotechnical engineer of record regarding slope stability of the downstream area is provided. Use of a level spreader requires a waiver to be granted by the municipality.
(3) 
Design and construction standards, stormwater detention facilities.
(a) 
All retention/detention facilities shall be equipped with multistage outlet structures to provide discharge control for each designated storm frequency. Provisions shall also be made to safely pass the post-development 100-year storm runoff in the event of an outlet structure failure without damaging or impairing the continued function of the facilities (i.e., impairing the continued function of) the facilities. The facility(ies) must have an emergency outlet which is able to discharge the post-development 100-year peak flow. Should any stormwater management facilities qualify as a dam under PaDEP Chapter 105 criteria, the facility shall be designed in accordance with those regulations and meet the regulations concerning dam safety.
(b) 
Any stormwater management facility designed to store runoff shall provide an emergency spillway designed to convey the unattenuated 100-year post-development peak rate flow with a blocked primary outlet structure and an inundation stormwater to the invert elevation of the spillway, with a minimum one-foot freeboard to the crest of the embankment.
(c) 
Woody vegetation shall not be permitted on the embankments or within 25 feet of the emergency spillway.
(d) 
The water depth of a storage facility which is not fenced shall be limited to two feet unless approved by the municipality. Otherwise, appropriate fencing at least four feet in height shall be required.
(e) 
Side slopes of storage facilities shall not exceed a ratio of three to one horizontal to vertical dimension. The crest of the embankment shall have a minimum width of not less than 10 feet.
(f) 
The facility shall be equipped with an access road at least 10 feet wide and with a maximum of grade of 15% that extends to the bottom of the detention facility. Access roads greater than 12% grade must be paved. Access roads 12% or less shall have a minimum six-inch depth of non-eroding aggregate surface. A gate with a minimum opening of 10 feet shall be provided for maintenance access. An access easement with a minimum width of 20 feet to all stormwater detention facilities shall be provided. The access easement shall include a statement on the recorded plan from the owner/operator of the facility granting access to the municipality.
(g) 
All stormwater facility outlet structures shall have suitable gaskets to prevent leakage and piping of water through the facility embankment. All storm pipes installed through the facility embankment must be constructed of reinforced concrete pipe. Use of high-performance polypropylene pipe may be permitted with documentation of pipe manufacturer's backfill requirements.
(h) 
A geotechnical investigation report for the construction of the stormwater detention/retention and infiltration facilities must be provided including design recommendation for embankment construction, interior and exterior slopes, drainage swales and infiltration areas.
(i) 
Basin outlet structures shall have nonclogging trash racks over all design openings. Periodic cleaning of debris from trash racks shall be included in the operation and maintenance plan.
(j) 
Inlet structures and outlet structures shall be separated to the greatest extent possible in order to maximize the flow path through the basin.
(k) 
BMPs must be designed to protect and maintain existing uses (e.g., drinking water use; cold water fishery use) and maintain the level of water quality necessary to protect those uses in all streams, and to protect and maintain water quality in "special protection" streams, as required by statewide regulations at 25 Pa.Code, Chapter 93 (collectively referred to herein as "state water quality requirements").
(l) 
Anti-flotation calculations shall be provided for primary outlet structure providing a minimum factor of safety of 1.5.
F. 
Operation and maintenance.
(1) 
Responsibilities of developers and landowners.
(a) 
The municipality shall make the final determination on the continuing maintenance responsibilities prior to final approval of the SWM site plan. The municipality may require a dedication of such facilities as part of the requirements for approval of the SWM site plan. Such a requirement is not an indication that the municipality will accept the facilities. The municipality reserves the right to reject or accept the ownership and operating responsibility for any portion of the stormwater management controls.
(b) 
Facilities, areas, or structures used as SWM BMPs shall be enumerated as permanent real estate appurtenances and recorded as deed restrictions or conservation easements that run with the land.
(c) 
The O&M Plan shall be recorded as a restrictive deed covenant that runs with the land.
(d) 
The municipality may take enforcement actions against an owner for any failure to satisfy the provisions of this subsection.
(2) 
Operation and maintenance agreements.
(a) 
Prior to final approval of the SWM site plan, the property owner shall sign and record an operation and maintenance (O&M) agreement (see Appendix B[16]) covering all stormwater control facilities which are to be privately owned.
[1] 
The owner, successor and assigns shall maintain all facilities in accordance with the approved maintenance schedule in the O&M agreement.
[2] 
The owner shall convey to the municipality conservation easements to asure access for periodic inspections by the municipality and maintenance, as necessary.
[3] 
The owner shall keep on file with the municipality the name, address, and telephone number of the person or company responsible for maintenance activities; in the event of a change, new information shall be submitted by the owner to the municipality within 10 working days of the change.
[16]
Said Appendix is included as an attachment to this section.
(b) 
The owner is responsible for operation and maintenance (O&M) of the SWM BMPs. If the owner fails to adhere to the O&M agreement, the municipality may perform the services required and charge the owner appropriate fees. Nonpayment of fees may result in a lien against the property.
(3) 
Performance guarantee.
(a) 
For SWM site plans that involve subdivision and land development, the applicant shall provide a financial guarantee to the municipality for the timely installation and proper construction of all stormwater management controls as required by the approved SWM site plan and this section in accordance with the provisions of §§ 509, 510, and 511 of the Pennsylvania Municipalities Planning Code.
(b) 
For facilities turned over to the municipality, financing shall be provided for 10 years at present worth.
G. 
Fees and expenses.
(1) 
General. The municipality may include all costs incurred into the review fee charged to an applicant.
(a) 
The review fee may include, but not be limited to, costs for the following:
[1] 
Administrative/clerical processing.
[2] 
Review of the SWM site plan.
[3] 
Review of a SWM site plan resubmission.
[4] 
Attendance at meetings.
[5] 
Inspections.
H. 
Prohibitions.
(1) 
Prohibited discharges and connections.
(a) 
Any drain or conveyance, whether on the surface or subsurface, that allows any nonstormwater discharge including sewage, process wastewater, and wash water to enter a regulated small MS4 or to enter the surface waters of this Commonwealth is prohibited.
(b) 
No person shall allow, or cause to allow, discharges into a regulated small MS4, or discharges into waters of this Commonwealth, which are not composed entirely of stormwater, except as provided in Subsection H(1)(c) below and discharges authorized under a state or federal permit.
(c) 
The following discharges are authorized unless they are determined to be significant contributors to pollution of a regulated small MS4 or to the waters of this Commonwealth:
[1] 
Discharges or flows from firefighting activities.
[2] 
Discharges from potable water sources, including water line flushing and fire hydrant flushing, if such discharges do not contain detectable concentrations of total residual chlorine (TRC).
[3] 
Noncontaminated irrigation water, water from lawn maintenance, landscape drainage and flows from riparian habitats and wetlands.
[4] 
Diverted stream flows and springs.
[5] 
Noncontaminated pumped groundwater and water from foundation and footing drains and crawl space pumps.
[6] 
Noncontaminated HVAC condensation and water from geothermal systems.
[7] 
Residential (i.e., not commercial) vehicle wash water where cleaning agents are not utilized.
[8] 
Noncontaminated hydrostatic test water discharges, if such discharges do not contain detectable concentrations of TRC.
[9] 
Dechlorinated swimming pool and hot tub discharges, as long as the PADEP guidelines for swimming pool water discharge are followed.
(d) 
In the event that the municipality or DEP determines that any of the discharges identified in Subsection H(1)(c) significantly contribute pollutants to a regulated small MS4 or to the waters of this Commonwealth, the municipality or DEP will notify the responsible person(s) to cease the discharge.
(2) 
Roof drains and sump pumps.
(a) 
Roof drains and sump pumps shall discharge to infiltration or vegetative BMPs wherever feasible.
(b) 
Unless otherwise approved by the municipality, no stormwater from roofs or driveway drains shall be discharged to the street surface or curb.
(c) 
Roof drains shall be a minimum of six inches in diameter and provide cleanouts at 50 feet intervals or at horizontal and vertical changes.
(3) 
Alteration of SWM BMPs. No person shall modify, remove, fill, landscape, or alter any SWM BMPs, facilities, areas, drainage easements, or structures that were installed as a requirement of this section without the written approval of the municipality.
I. 
Enforcement and penalties.
(1) 
Right of entry. Upon presentation of proper credentials, the municipality or its designated agent may enter at reasonable times upon any property within the municipality to inspect the condition of the stormwater structures and facilities in regard to any aspect regulated by this section.
(2) 
Inspection.
(a) 
The landowner or the owner's designee (including the municipality for dedicated and owned facilities) shall inspect SWM BMPs, facilities and/or structures installed under this section according to the following frequencies, at a minimum, to ensure the BMPs, facilities and/or structures continue to function as intended:
[1] 
Annually for the first five years.
[2] 
Once every three years thereafter.
[3] 
During or immediately after the cessation of a ten-year or greater storm.
(b) 
Inspections should be conducted during or immediately following precipitation events. A written inspection report shall be created to document each inspection. The inspection report shall contain the date and time of the inspection, the individual(s) who completed the inspection, the location of the BMP, facility or structure inspected, observations on performance, and recommendations for improving performance, if applicable. Inspection reports shall be submitted to the municipality within 30 days following completion of the inspection.
(3) 
Enforcement.
(a) 
It shall be unlawful for a person to undertake any regulated activity except as provided in an approved SWM site plan, unless specifically exempted in Subsection C(2).
(b) 
It shall be unlawful to violate Subsection H(3) of this section.
(c) 
Inspections regarding compliance with the SWM site plan are a responsibility of the municipality.
(4) 
Suspension and revocation.
(a) 
Any approval or permit issued by the municipality pursuant to this section may be suspended or revoked for:
[1] 
Noncompliance with or failure to implement any provision of the approved SWM site plan or O&M agreement.
[2] 
A violation of any provision of this section or any other applicable law, ordinance, rule, or regulation relating to the regulated activity.
[3] 
The creation of any condition or the commission of any act during the regulated activity which constitutes or creates a hazard, nuisance, pollution, or endangers the life or property of others.
(b) 
A suspended approval may be reinstated by the municipality when:
[1] 
The municipality has inspected and approved the corrections to the violations that caused the suspension.
[2] 
The municipality is satisfied that the violation has been corrected.
(c) 
An approval that has been revoked by the municipality cannot be reinstated. The applicant may apply for a new approval under the provisions of this section.
(d) 
If a violation causes no immediate danger to life, public health, or property, at its sole discretion, the municipality may provide a limited time period for the owner to correct the violation. In these cases, the municipality will provide the owner, or the owner's designee, with a written notice of the violation and the time period allowed for the owner to correct the violation. If the owner does not correct the violation within the allowed time period, the municipality may revoke or suspend any, or all, applicable approvals and permits pertaining to any provision of this section.
(5) 
Penalties.
(a) 
Anyone violating the provisions of this section shall be guilty of a summary offense, and upon conviction, shall be subject to a fine of not more than $500 for each violation, recoverable with costs. Each day that the violation continues shall be a separate offense and penalties shall be cumulative.
(b) 
In addition, the municipality may institute injunctive, mandamus, or any other appropriate action or proceeding at law or in equity for the enforcement of this section. Any court of competent jurisdiction shall have the right to issue restraining orders, temporary or permanent injunctions, mandamus, or other appropriate forms of remedy or relief.
(6) 
Appeals.
(a) 
Any person aggrieved by any action of the municipality or its designee, relevant to the provisions of this section, may appeal to the municipality within 30 days of that action.
(b) 
Any person aggrieved by any decision of the municipality, relevant to the provisions of this section, may appeal to the County Court of Common Pleas in the county where the activity has taken place within 30 days of the municipality's decision.
J. 
References.
(1) 
U.S. Department of Agriculture, National Resources Conservation Service (NRCS). National Engineering Handbook. Part 630: Hydrology, 1969-2001. Originally published as the National Engineering Handbook, Section 4: Hydrology. Available from the NRCS online at: http://www.nrcs.usda.gov/.
(2) 
U.S. Department of Agriculture, Natural Resources Conservation Service. 1986. Technical Release 55: Urban Hydrology for Small Watersheds, 2nd Edition. Washington, D.C.
(3) 
Pennsylvania Department of Environmental Protection. No. 363-0300-002 (December 2006), as amended and updated. Pennsylvania Stormwater Best Management Practices Manual. Harrisburg, PA.
(4) 
Pennsylvania Department of Environmental Protection. No. 363-2134-008 (March 31, 2012), as amended and updated. Erosion and Sediment Pollution Control Program Manual. Harrisburg, PA.
(5) 
U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service, Hydrometeorological Design Studies Center. 2004-2006. Precipitation-Frequency Atlas of the United States, Atlas 14, Volume 2, Version 3.0, Silver Spring, Maryland. Internet address: http://hdsc.nws.noaa.gov/hdsc/pfds/.
A. 
Size and grade. Storm drains shall be adequate for the anticipated runoff when the area is fully developed. The minimum diameter of storm sewers shall be 15 inches, and the minimum grade shall be 1%, unless recommended by the Township Engineer and approved by the Board of Commissioners in accordance with the procedure specified in Article IX of this chapter.
B. 
Manholes. For pipe sizes of 24 inches or less, manholes shall be spaced at a maximum of 400 feet and for larger pipe sizes, the maximum distances between manholes shall be 600 feet. In addition, manholes shall be installed at all points of abrupt changes in horizontal alignment and vertical grade. Inlets may be substituted for manholes where practical.
C. 
Inlets. Inlets of the type shown in the Township Construction Standards shall be installed. Inlets at street intersections shall be placed on the tangent and not on the curved portions.
D. 
Castings. Manholes and inlet castings shall be as indicated in the Township Construction Standards.
E. 
Stormwater roof drains. Stormwater roof drains shall be connected directly to underground pipes which shall flow into an approved storm drainage system. This storm drainage system may include dry wells or sumps. All pipe from roof drains shall meet the requirements of the Township Construction Standards.
F. 
Watercourses. Open watercourses shall not be permitted within the rights-of-way of streets. The stopping, filling up, confining or other interference with, or changing the course of drains, ditches, streams and watercourses in the Township shall not be permitted unless approval in writing is obtained from the Board of Commissioners. A permit must be obtained from the Department of Environmental Protection (DEP) of the Commonwealth of Pennsylvania for construction or changes in a watercourse subject to the regulations of the Pennsylvania Department of Environmental Protection.
G. 
Bridges and culverts. All bridges and culverts shall be designed to support expected loads and to carry expected flows and shall be designed to meet current standards of the Pennsylvania Department of Transportation. All bridges and culverts shall be subject to all permits required by the Pennsylvania Department of Environmental Protection, Bureau of Dams and Encroachments.
A. 
Where public sewers are reasonably accessible, the developer shall provide public sewers in the subdivision or land development. Installation of sanitary sewers and appurtenances shall be in accordance with the regulations of the Municipal Authority.
B. 
Where public sewers are not reasonably accessible and extension of public sewers is not expected to take place in the foreseeable future, on-site sewage disposal, approved by the Pennsylvania Department of Environmental Protection (DEP) and/or the Allegheny County Health Department shall be provided.
A. 
Where public water supply is available, the developer shall connect to such public water supply and construct a system of water mains with a connection for each lot.
B. 
Where public water is not available, the developer shall supply acceptable evidence of the availability of water. The developer may be required to make one or more test wells in the area to be platted, if such evidence is deemed not acceptable. Copies of well logs from said test wells which are obtained shall include the name and address of the well driller and shall be submitted with the plan to the Board of Commissioners.
C. 
If a private water supply is permitted, individual private wells shall be located at least 25 feet from property lines; 50 feet from all septic tanks; approximately 100 feet from all tile disposal fields and other sewage disposal facilities; 10 feet from all cast-iron sewer lines; 30 feet from any vitrified sewer tile lines; and shall not be located within any floodplain.
In addition to all applicable design standards specified in §§ 215-71 through 215-81 and §§ 215-83 and 215-84, all land developments shall comply with the following design standards:
A. 
Lighting of property. Parking and pedestrian areas on the property shall be lighted to create a level of not less than one footcandle when measured three feet above the pavement throughout the paved areas on the property. Such lighting may be from freestanding lampposts within the parking areas, from nearby streetlights or from lights mounted on buildings. Lighting shall be shielded or aimed so as not to create glare conditions on adjacent streets or properties. Light standards in parking areas shall be protected from accidental damage by vehicles.
B. 
Landscaping.
(1) 
All areas of the property not paved or occupied by buildings shall be landscaped and maintained in grass, shrubs, trees, ground cover, mulching materials or other natural materials planted in accordance with accepted minimum standards. At least 5% of the total area of the property shall be set aside for landscaping. Lot areas not covered by buildings, sidewalks, pavement or other improvements shall be seeded with grass or other appropriate groundcover material compatible with the landscape and architectural design and condition of the surrounding areas. Landscaping materials shall not obstruct sight distances at access points to the property.
(2) 
Where required by the Township Zoning Ordinance, buffer areas shall be provided which comply with the design standards specified in the Zoning Ordinance. A landscaping plan shall be submitted which shows compliance with this chapter, any buffer area requirements and required landscaping and screening of parking areas and loading areas.
C. 
Garbage and trash containers. All organic rubbish and discarded materials shall be placed in tight verminproof containers on the property and shall be secured in side or rear yards screened from public view by means of a solid face fence or wall. Containers shall be emptied not less frequently than once a week. On properties where food is served in paper containers, covered waste receptacles shall be conspicuously located on the premises for use by patrons. The management shall be responsible for maintaining the property free of litter.
D. 
Parking areas. Parking areas shall be designed in accordance with the provisions of the Township Zoning Ordinance. Ingress and egress and interior circulation on the site shall be designed to ensure safety and minimize congestion. Adequate provision shall be made for safe pedestrian circulation within the parking areas and from the parking areas to the buildings. Fire lanes shall be adequately marked and maintained in locations approved by the Township.
All subdivision and land development plans shall be designed to meet the current standards of the commonwealth and federal law with respect to handicapped accessibility, and verification of compliance shall be provided to the Township.
A. 
Manholes shall be vacuum tested and all sanitary sewer lines shall be lamped and air tested by the developer in the presence of the Municipal Authority's inspector. Air tests shall be conducted in accordance with the specifications established by currently accepted engineering standards.
B. 
All construction materials used in sewers, streets, sidewalks and other required improvements shall be tested by a qualified testing laboratory, if required by the Township Engineer. The cost for such tests shall be borne by the developer.
C. 
Copies of the test reports shall be provided to the Township Engineer and to the developer.
[Added 11-15-2004 by Ord. No. 13-2004]
A. 
Purpose and intent.
(1) 
The purpose and intent of this section is to protect natural wetland systems and sustain natural wetland hydroperiods, to minimize activities that degrade, destroy or otherwise negatively impact wetland values and functions and, where appropriate, to reestablish and restore productive wetland systems. Further, it is the purpose and intent of this section to promote ecological stability, improve water quality, prevent flooding and protect property and environmental resources.
(2) 
Wetlands serve many important hydrological and ecological values and functions. They reduce the impact of flooding by acting as natural retention and water storage areas. Wetlands act as groundwater recharge areas for the surficial aquifer and protect water supplies for environmental, urban and agricultural use. Wetlands protect groundwater table levels and help minimize damage from fires. Wetlands provide inflows of clean water to the rivers and estuaries through surface and ground water connections and minimize urban runoff by filtering water. They provide green space and biological diversity and serve to cool the atmosphere. Wetlands act as productive biological systems providing habitat, foraging and denning areas for a variety of animal species. Wetlands are important to our community values and aesthetic appearance.
(3) 
The intent of this section is to protect natural wetland systems. Man-made excavations in uplands, except those that are navigable and connected to waters of the commonwealth, are not protected by this section. While man-made wetlands exempt under this section are not protected as natural wetlands, development review shall assure that impacts to them do not adversely affect drainage or natural systems.
B. 
Applicability.
(1) 
All wetlands in the Township of South Fayette shall be protected. No negative impacts shall be allowed within wetlands or wetland buffers except as specifically provided for in Subsection L, Exceptions and waivers. All development must be consistent with the wetland protection requirements of this section and South Fayette Township Comprehensive Plan (hereinafter referenced as the Comprehensive Plan). Compliance with these requirements must be demonstrated by the applicant prior to the issuance of any development approval or order.
(2) 
The requirements of this section to protect wetlands and wetland buffers shall apply to all activities, whether urban or agricultural. A clearing permit shall be required for any clearing in order to demonstrate compliance with this section.
(3) 
Where illegal activities in violation of the Comprehensive Plan, the South Fayette Township Code, the South Fayette Township Zoning Ordinance or the South Fayette Township Subdivision and Land Development Regulations have altered any wetland area so that all or part of the original area no longer meets the definition of a wetland or has negatively impacted a wetland, restoration shall be required at the site of the alteration. Restoration of buffers, habitat and hydrology of the original wetland area shall be required. The wetland shall be protected as a natural wetland. In addition to the requirements of this section, any applicant must comply with all the requirements of the Commonwealth of Pennsylvania, Title 25 (Clean Streams Law), Chapter 102 (Erosion and Sediment Pollution Control Rules and Regulations), and to obtain any other permits which may be required by federal, state, county or municipal law or ordinance.
C. 
Definitions. As used in this section, the following terms shall have the meanings indicated:
ANAEROBIC
A condition in which molecular oxygen is virtually absent.
BUFFER
The regulated area surrounding a wetland or stream.
FIN
Peat-accumulating wetland that generally receives water from surface runoff and (or) seepage from mineral soils in addition to direct precipitation; generally alkaline; or slightly acid.
HYDRIC SOILS
Soil that is wet long enough to produce anaerobic conditions.
HYDROPHYTIC VEGETATION
Plants that have the ability to grow, effectively compete, reproduce and/or persist in anaerobic soil conditions. Lists of these plants are available from the Environmental Protection Agency or Fish and Wildlife Agency.
NATURAL WETLAND HYDROPERIOD
The normal seasonal fluctuations in the surface and ground water levels of wetlands and the resulting duration of surface flooding in response seasonal rainfall.
NORMAL CONDITIONS
Refers to the soil and hydrologic conditions that are normally present, without regard to whether the vegetation has been removed.
OBLIGATE HYDROPHYTES
Species that are found only in wetlands as opposed to ubiquitous species that grow either in wetlands or an upland.
UPLAND SOIL
A general term for nonwetland; elevated land above low areas along streams or between hills; any elevated region from which rivers gather drainage.
WATER BODY
Any natural or artificial pond, lake, reservoir or other area which ordinarily or intermittently contains water and which has a discernible shoreline, but not including a natural drainage system.
WETLANDS
Those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include water bodies, streams, floodways and floodplains. Wetlands are an ecosystem type, generally occurring between upland and deep-water areas, that performs many important functions, including fish and wildlife habitat, flood protection, erosion control and water quality maintenance. Wetlands must contain more than 50% of the composition of the dominant species obligate wetland (OBL), facultative wetlands species (FACW) and/or facultative (FAC) species.
WETLAND HYDROLOGY
Inundation by water sufficient to support hydrophytic vegetation and develop hydric soils.
WETLAND MITIGATION
Restoration of wetlands, enhancement of wetlands, preservation of wetlands or creation of wetlands for the purpose of providing compensation for wetland degradation or loss.
D. 
Man-made wetlands.
(1) 
This section is intended to protect natural wetlands even when impacted by man-made excavations. This section is not intended to protect man-made excavations created in uplands except those that are connected to the waters of the commonwealth.
(2) 
While man-made wetlands exempt under this policy are not protected as natural wetlands, development review shall assure that impacts to them do not adversely affect drainage or natural systems.
(3) 
In determining if a wetland which meets the definition in Subsection C above is a natural system protected, the following standards shall apply:
(a) 
Only man-made wetlands clearly excavated in uplands are exempt.
(b) 
Connected to the waters of the state, whether excavated in uplands or wetlands, are not exempt.
(c) 
Artificially created wetlands where there were no wetlands at the time of excavation and where there are no wetlands adjacent to the bank top of the excavation are exempt.
(d) 
Man-made wetlands which are within or directly adjacent to natural wetlands shall be protected as part of the natural wetland system.
(e) 
If there is not sufficient evidence to prove that the area delineated as a wetland both was man-made in upland soils and is not within or adjacent to a natural wetlands, then the system shall be protected as a natural wetlands.
E. 
Delineation.
(1) 
All major subdivisions, site plans, plats, PRDs and/or PEDs shall be required to show wetland boundaries within the area of the proposed plan. Said wetlands shall be delineated by a qualified biologist or engineer in a manner consistent with those described in the 1987 Corps of Engineers Wetlands Delineation Manual. All those contemplating land purchase or development are urged to obtain field delineations of wetlands prior to decisions on land use and project design.
(2) 
At the time of application to the Township, all subdivisions, site plans, plats, PRD and/or PED applicants must demonstrate the submittal of necessary wetland permit applications to appropriate federal, state and/or county authorities. No final approval shall be granted without the receipt of necessary permits from the aforementioned political subdivisions.
F. 
Standards.
(1) 
Wetland buffers. Wetland buffers and setbacks from wetland buffers shall be provided and maintained in accordance with the following requirements:
(a) 
Buffers shall be measured landward of the boundary of the wetland, wetland vegetation or mangrove tree line, the mean high water line or the ordinary high water mark, whichever is further landward. For natural bluffs with slopes steeper than one foot vertical to three feet horizontal, required buffers shall start at the top of the bank.
(b) 
For natural creeks, rivers, water bodies connected to waters of the commonwealth and waters of the state, a wetland buffer zone with a minimum of 25 feet shall be required.
(c) 
For wetlands less than or equal to 1/20 of an acre, a wetland buffer zone with a minimum of 25 feet shall be required. For wetlands greater than 1/10 of an acre, a wetland buffer zone with a minimum of 50 feet shall be required.
(d) 
For isolated wetlands and any other wetlands not covered in Subsection F(1)(b), an upland buffer zone with a minimum of 50 feet shall be provided.
(e) 
The following protective measures will be required to assure protection of the wetlands. These requirements are more restrictive than the buffers and setbacks required for natural creeks, rivers and water bodies connected to the commonwealth. These special protective measures will be incorporated as conditions of approval during the site plan review process to ensure that the biological, scenic and navigational qualities of wetlands are maintained. These measures shall be applied to all site and/or development plan approvals and to all clearing of native vegetation on lots of record greater than one acre in size and/or any new plats. Development adjacent to wetlands shall be governed by the following regulations:
[1] 
In order to reduce nutrient inflows to wetlands, the location of sludge spreading, sewage plants, on-site disposal systems, septic tank leachfields, effluent percolation ponds and irrigation quality storage ponds must be 300 feet from the wetland, as measured under Subsection F(1)(a).
[2] 
In order to maintain and protect breeding of threatened and endangered wildlife species, the required buffer on sites where threatened and endangered species nest or den within shall extend 300 feet outward from a nest or den. A biological survey conducted by an environmental professional will be required if there is indication that a threatened or endangered species would be likely to use the affected habitat for nesting or denning. The survey shall be conducted during the timeframe of the most recent normal nesting or denning period of the species and shall be updated if the development order is to be issued more than one year after the submittal of the application.
(2) 
Setbacks for construction and building maintenance activities. Wetland buffers shall be protected from encroachment during construction and building maintenance activities as follows: New construction (including fin proposed adjacent to wetland buffer zones and upland preserve areas) shall be set back a minimum of 10 feet for primary structures; setbacks for accessory structures, such as but not limited to pool decks, screen enclosures and driveways, shall be five feet. Graded areas landward of these required buffer protection areas shall not exceed a slope of one foot vertical to four feet horizontal. All slopes shall be properly stabilized to the satisfaction of the Township Engineer.
(3) 
Performance standards. The following performance standards shall be followed for all wetland areas and wetland buffers:
(a) 
Vegetation removal. The removal of natural vegetation from wetlands and from buffer zones surrounding wetlands shall be governed by the following regulations:
[1] 
Clearing or direct removal of vegetation shall not occur except in compliance with an approved preserve area management plan developed by a qualified biologist or engineer.
[2] 
All materials that are cleared from the wetland or buffer zone shall be removed from the site and not piled or stored within the wetland.
(b) 
Dredging and filling. Dredging and filling activities within 300 feet of wetlands shall be governed by the following regulations.
[1] 
Dredging or filling shall not occur within the wetlands or the buffer zone surrounding the wetlands except in compliance with the provisions of the Township excavation, fill and mining regulations.
[2] 
An additional separation with a minimum width of 200 feet shall be maintained between the outer edge of any wetland buffer and any lake excavation unless an alternative plan utilizing an impermeable barrier is approved by Township Engineer in consultation with Allegheny County Conservation District. Any excavation which is likely to result in drawdown of the water table through pumping or through off-site outfalls must be separated a minimum of 200 feet from any wetland.
[3] 
Filling which occurs landward of a wetland buffer zone shall be immediately stabilized and contained to prevent runoff of sediment into buffer zones or wetlands.
(c) 
Construction within or adjacent to wetlands and wetland buffer zones. No alteration or construction shall be allowed within wetlands or buffer zones except as specifically provided in Subsection L, Exceptions and waivers.
[1] 
The structure and foundation of docks shall be designed to accommodate surface water flows and shall not be designed to impede, interrupt or impound surface water flows. Public and private dock structures shall be consistent with the Comprehensive Plan and with any applicable Township building code.
[2] 
Routine maintenance of existing structures shall be permitted but shall be performed in the least intrusive manner possible and shall not result in additional damage to the wetland or wetland buffer zone.
[3] 
All pilings shall be secured, placed or set to the desired depth by the least disruptive method based on existing site characteristics.
[4] 
Boardwalks shall be designed to minimize wetland disruption while allowing access for wildlife and water viewing. Where boardwalks are provided for golf course access and for access between facilities, they must be part of an overall site plan designed to minimize wetland intrusion.
[5] 
The use of heavy equipment shall be minimized in the wetland areas and/or buffer zones.
[6] 
There shall be no temporary filling of the wetlands area or buffer zone for construction.
(4) 
Waste disposal. Disposal of wastes in and around wetlands and buffer zones shall be governed by the following regulations:
(a) 
The discharge of domestic, industrial, leachate or agricultural wastewater containing heavy metals, herbicides, pesticides or any other toxic substance(s) in excess of concentrations established by state, federal and/or county guidelines into the waterways, wetlands or buffer zones shall be prohibited.
(b) 
Sludge, sewage and septic systems which are adjacent to wetlands shall be set back from such wetlands in accordance with Subsection F(1)(e)[1].
(c) 
The disposal of hazardous material in designated areas shall not occur within 300 feet of a wetlands.
(d) 
Any new solid waste disposal facility shall be subject to the wetland protection provisions of this subsection and designed in such a manner as to have no negative effect on the wetlands or buffer zones.
(e) 
The disposal of residential, commercial and/or industrial solid waste shall not occur within a wetland or wetland buffer.
(5) 
Stormwater and surface management. Management of water in and around wetlands is critical to the survival of a healthy wetlands system. Stormwater and surface water management in and around wetlands and buffer zones shall be governed by the following regulations:
(a) 
Maintenance of wetland hydrology and water quality.
[1] 
Direct discharge of stormwater into wetlands or buffer zones shall be subject to conditional use approval. Stormwater must be provided retention and/or detention water quality treatment prior to being discharged into wetlands or wetland buffer zones. Stormwater retention and/or detention basins shall be used to maintain postdevelopment discharges at predevelopment levels.
[2] 
Stormwater basins and outflow structures shall be designed to assure that the water quality, rate of runoff and seasonal runoff volumes are in accordance with allowable release rates of the project area as determined by the Township Engineer. Timing and volume of water discharge shall be appropriate to restore and/or maintain the natural hydroperiod.
[3] 
Stormwater basins shall be designed and constructed with sediment traps and litter or trash screens. The retention and/or detention basins shall be vegetated, and the use of herbicides and pesticides within the retention and/or detention basin for vegetation and insect control shall be discouraged.
(b) 
Any alteration of water levels within wetlands shall be prohibited unless determined necessary to restore or maintain the natural hydroperiod of the wetland system by way of a surface water management plan approved by the Township Engineer in consultation with the Allegheny County Conservation District. Outflow structures shall be designed to assure wet season water tables will be maintained throughout the development and that quality, rate, timing and volume will maintain sustainable on-site wetlands and healthy receiving waters.
(c) 
Timing and volume of water discharge shall be appropriate to restore and/or maintain the natural hydroperiod.
(d) 
Applicants for development must comply with Township Stormwater Management Ordinance and stormwater facility landscaping requirements.
G. 
Permitted uses within wetland buffers. All permitted uses require the issuance of a wetlands permit by the Zoning Officer. Permitted uses are:
(1) 
Utility easements and maintenance of existing roadways, landscaping and buildings.
(2) 
Accessory buildings less than 200 square feet within the outer 25 feet of the wetland buffer in residentially zoned areas.
(3) 
Selective clearing of vegetation.
(4) 
Agriculture.
(5) 
Passive recreation.
H. 
Conditional uses within wetland buffers. Conditional uses are:
(1) 
Stormwater management facilities.
(2) 
Roadways, driveways, grading and draining.
(3) 
Timbering.
(4) 
Mining.
(5) 
Recreational and educational facilities.
(6) 
Mitigation option.
(a) 
Developers seeking to recreate a wetland, through mitigation of wetland areas to be impacted by a proposed development, may apply for a conditional use. Such a use would allow the developer to participate in any relocation program through the Department of Environmental Protection, USDA or the United States Fish and Wildlife Service.
(b) 
The developer may also choose to propose a relocation to another area without the help of the aforementioned organizations.
(c) 
In all cases, the developer shall be required to recreate the wetlands at a ratio of 1.5 times the acreage of the wetland area to be impacted by the proposed development. Said wetland area shall be recreated within the Township within the same watershed (as recognized by the United States Geological Survey) as the impacted wetlands.
(d) 
The developer shall submit plans by a qualified engineer or biologist showing on two-foot contours both the site to be impacted and the site of the mitigated wetland with the parcel boundaries of the sites. The types and amounts of vegetation for both the impacted wetland and the mitigated wetland shall be indicated on the plan. The ratio, mix and types of vegetation in the mitigated wetland must reasonably reflect that of the impacted wetlands. The Township may accept written confirmation from any of the organizations mentioned in this section that the wetland shall be recreated following the guidelines of this section. The applicant may then submit a simplified map of the mitigated wetland's boundaries within the site's parcel boundaries.
(e) 
In all cases, the developer must deposit with the Township a financial security from an authorized bonding company or federal or commonwealth chartered lending institution in the amount of 110% of the cost of completion of required improvements as estimated by a licensed professional engineer as of 90 days following the date scheduled for completion by the Township Engineer. Release of such securities shall follow Township established bond release policy.
(f) 
Unless the developer dedicates the area of the proposed wetland as a conservation casement in accordance with wetlands relocation programs conducted by the organizations stated previously, the developer must dedicate said area as a wetlands easement to the Township, noting the easement on the deed of the property. The developer shall deposit with the Township a financial security from an authorized bonding company or federal or commonwealth chartered lending institution in the amount of 10% of the cost of completion of required improvements as estimated by a licensed professional engineer. This financial security shall be held for 18 months as security for any maintenance.
(g) 
The mitigation option as a conditional use may be granted through the consideration of the following:
[1] 
The uniqueness of the subdivision or site plan.
[2] 
The economic benefit to the community versus the loss of natural resources.
[3] 
The overall aesthetic impact on the present character of the Township.
I. 
Restricted uses. Restricted uses are all uses not conforming to those mentioned in Subsections G and H.
J. 
Open space.
(1) 
The area of a wetland, stream and buffers may be included in the open space required for any subdivision, site plan, PRD and/or PED.
(2) 
Said areas may not comprise more than 50% of the total proposed open space.
K. 
Lots of record. Buffers and setbacks may be altered on certain lots of record to provide reasonable use of such lots of record under the following circumstances. It is not the intent that this subsection be used in conjunction with a division of a lot of record into more than one lot.
(1) 
Lots of record on the adoption date of this section which are less than one acre in size shall be exempt from the buffer provisions as outlined in Subsection F and shall remain exempt if such lots or parcels are subsequently subdivided, provided that such lots or parcels are not part of a contiguous, commonly owned lot or parcel that is larger than five acres at the time of subdivision. This waiver or exception shall not affect other buffer requirements contained in Subsection F.
(2) 
Retaining walls for primary or accessory structures may be placed five feet waterward from the upland edge of the buffer or upland transition zone on residential lots of record so existing on December 31, 2004, if slopes are maintained and the buffer area is replanted in native vegetation compatible with elevations and proximity to water; and provided that all zoning district setback criteria are met.
L. 
Exceptions and waivers. This section is not intended to result in a taking of property under the Fifth Amendment of the United States Constitution or Section Five of the Tenth Article of the Pennsylvania Constitution, and waivers and exceptions may be granted by South Fayette Township Board of Commissioners under the procedures and provisions of this section where a landowner proves that the implementation of this section will result in such a taking. All wetland alteration allowed under these waivers and exceptions shall be sufficiently mitigated to ensure that there is no net loss of functions or the spatial extent of wetlands in the Township of South Fayette. If waivers or exceptions are allowed under this subsection, the use of heavy equipment shall be minimized, and there shall be no temporary filling of any wetland area or buffer zone. No exceptions or waivers to these standards shall be granted except in accordance with this subsection and under the conditions and provisions described below. The provisions of this subsection may be waived for access purposes only under the following circumstances:
(1) 
Access to uplands. Where the owner of the property demonstrates that encroachment of wetlands or wetland buffers is necessary for access and no reasonable upland alternative exists, an exception or waiver shall be granted only when appropriate environmental agencies, including the Allegheny County Conservation District and the Township Engineer, certify in writing that the encroachment is the least damaging alternative and the encroachment is the minimum encroachment capable of providing the required access and the applicant submits an acceptable proposal for mitigation which will minimize damage to wetlands or buffers. That applicant must also meet any and all other county, state and federal requirements for the crossing of a wetland.
(2) 
Bridges in public rights-of-way. An exception from these regulations may be granted for proposed or approved bridges in a public right-of-way crossing estuarine waters or waters of the state so that public access may be maintained. For proposed bridges within public rights-of-ways crossing estuarine waters or waters of the state, public access shall be allowed by clearing that portion of the affected wetland vegetation so long as a revegetation and management plan is reviewed, adopted and implemented in accordance with applicable state regulations. The Township Engineer shall approve a request for access under this subsection only after receiving a satisfactory plan of the proposed development which shall demonstrate the need for access and shall designate the property boundaries. The plan shall also demonstrate the reason for the development and other information as may be required by the South Fayette Township Code, the Comprehensive Plan, Zoning Ordinance and the Subdivision and Land Development Regulations. The decision of the Township Engineer may be appealed to the South Fayette Township Board of Commissioners.
(3) 
Waivers and exceptions for public utilities. An exception from these regulations may be granted where the applicant demonstrates that encroachment of wetlands, or wetland buffers, as defined in this Land Development Regulation, is necessary for the construction and/or maintenance of a public utility, subject to the following conditions:
(a) 
The construction or maintenance activity is for a linear facility that cannot be accomplished without wetland impacts;
(b) 
The utility has demonstrated that the encroachment is necessary and that no reasonable upland alternative exists;
(c) 
The activity is designed and located in such a manner that the least amount of damage to the wetlands is assured;
(d) 
The applicant has submitted a proposal for reforestation and/or mitigation to offset the impact;
(e) 
Permits have been received from the appropriate state and federal environmental agencies and copies of those permits have been submitted to the Township prior to issuance of the Township permit;
(f) 
The Allegheny County Conservation District and/or Township Engineer has reviewed the application and has determined, in writing, that the proposed encroachment is the least damaging alternative;
(g) 
The applicant has provided proof of ownership or easement over the property to be encroached;
(h) 
The applicant has demonstrated that the construction and/or maintenance activity will maximize the preservation of native indigenous vegetation; and
(i) 
The utility demonstrates that, should fill be required, the minimum necessary is used to assure reasonable access to the property or construction activity.
(4) 
Boardwalks, docks and boat ramps. An exception from these regulations may be granted when a plan for elevated observation boardwalks and single-family residential docks, multi-slip docks, boat ramps and commercial docks has been designed and located in such a manner that the least amount of damage to the wetland and wetland buffer is assured; and the plan meets the provisions of the dock regulations and has been approved by the Township Engineer and been approved by the appropriate state and federal agencies.
(5) 
Clearing for access under this subsection. The Township Engineer shall approve any authorized request for clearing under this subsection only after receiving a satisfactory plan of the proposed development which shall demonstrate the need for access and shall designate the boundaries. The plan shall also demonstrate the reason for the development and other information as may be required by South Fayette Township Code, the Comprehensive Plan, Zoning Ordinance and the Subdivision and Land Development Regulations. The decision of the Township Engineer may be appealed to the South Fayette Township Board of Commissioners. The South Fayette Township Board of Commissioners may approve the subject request upon a finding of compliance with this subsection.
(6) 
Removal of exotic vegetation. An owner of land may impact wetlands and wetland buffers for the sole purpose of removal of exotic vegetation only if a plan for such removal (including revegetation with appropriate native plant material, if necessary, and using methods that are the least intrusive to the wetland and wetland buffers) has been approved by the Township Engineer and the Allegheny County Conservation District.
M. 
Violations. Correction of a violation of applicable wetland preservation regulations shall consist of the following:
(1) 
Where evidence indicates that drainage, clearing or other development or man-made impacts has taken place and in violation of applicable wetland development restrictions in effect at the time the violation occurred, restoration shall be required before any development permits or orders are issued or within 90 days after receiving a notice of violation. This requirement shall include submittal of a minimum two-year letter of credit, or other acceptable financial alternative, to assure the successful restoration of the particular violation.
(2) 
Where illegal activities in violation of the South Fayette Township Code, the Comprehensive Plan, Zoning Ordinance and the Subdivision and Land Development Regulations have altered any wetland area so that all or part of the original area no longer meets the definition of a wetland or has negatively impacted a wetland, restoration shall be required at the site of the alteration. Restoration of buffers, habitat and hydrology of the original wetland area shall be required. The wetland shall be protected as a natural wetland.
(3) 
If the recipient of the notice of violation requests a hearing before the Zoning Hearing Board, then the provisions of Subsection M(1) above shall not apply until final action by the Zoning Hearing Board. The recipient of the notice may, at its option, proceed with the corrective actions provided for in Subsection M(1) above before Zoning Hearing Board acts on the notice.
(4) 
If the matter goes to a hearing before the Zoning Hearing Board upon request of the recipient of the notice of violation or if correction has commenced but has not been completed in accordance with Subsection M(1), then the Zoning Hearing Board shall hear the case and issue a final decision on the notice of violation.
(5) 
In addition to the foregoing, the Zoning Hearing Board may assess monetary penalties provided by law.
(6) 
Should the violation continue beyond the time specified for correction as provided above or if the violator fails to take the corrective actions provided above within reasonable time, the Code Inspector shall notify the Zoning Hearing Board and request a hearing.
(7) 
If a repeat violation is found, the Code Enforcement Officer shall issue a notice of violation, but is not required to give the violator further time to correct the violation. The Code Enforcement Officer shall notify the Zoning Hearing Board and request a hearing. The case may be heard by the Zoning Hearing Board and penalties and corrective measures imposed in accordance with this subsection, even if the repeat violation has been corrected prior to the Board hearing, and the notice shall so state.
(8) 
If the Code Inspector has reason to believe a violation or the condition causing the violation presents a serious threat to the public health, safety and welfare, or if the violation is irreparable or irreversible in nature, the Code Inspector shall make a reasonable effort to notify the violator and may immediately notify Zoning Hearing Board and request a hearing.
[Added 11-9-2022 by Ord. No. 4-2022[1]]
The construction details attached as Appendix D are the approved construction details for any improvement or construction required under this chapter. In the event that any construction detail in Appendix D conflicts with any construction detail in this chapter or the Code, then the construction detail in Appendix D shall supersede the conflicting detail.[2]
[1]
Editor's Note: This ordinance also stated that the standard details set forth in Appendix D of this chapter shall also be applicable to any construction requirements set forth in the Township Code.
[2]
Editor's Note: Appendix D is included as an attachment to this chapter.