Borough of Jefferson Hills, PA DESIGN STANDARDS

Any application for development shall conform to the standards set forth in this Part. The standards specified in this Part are minimum design requirements.

§ 22-602 Review By Borough Engineer.

[Ord. 603, 12/30/1991, § 602]

In reviewing any application for development, the Planning Commission and Borough Council shall refer the application for development to the Borough Engineer for a recommendation concerning technical compliance with these design standards and the construction standards referred to in Part 6.

§ 22-603 Site Development.

[Ord. 603, 12/30/1991, § 603; as amended by Ord. 704, 2/14/2000, §§ 2, 3]

Steep Slopes. Steep slopes shall be all areas on a development site which have a slope of 30% to 50% or greater. All such slope areas shall be calculated by the developer's engineer and shall be shown on the preliminary plan submitted for approval of a subdivision or land development. In reviewing the preliminary plan, the Planning Commission shall determine compliance with the following regulations.

Steep slopes within the area of a lot intended for construction of a single-family dwelling shall meet the following requirements:

(1)

The steep slope shall be located at least 70 feet behind the front building line.

(2)

If the steep slopes are altered by grading during preparation of the lots for construction, the resulting finished slope shall be 50% or less.

Steep slopes between 30% and 50% may be disturbed by grading, alteration or removal of vegetation, provided that a geotechnical report prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall be submitted with the subdivision or land development plan that indicates the following:

(1)

Slide-prone soils do not exist in the area proposed for grading, alteration or removal of vegetation.

(2)

The finished slopes after excavating or grading will be stable and will not create hazards for adjoining property from erosion, sedimentation or stormwater runoff.

(3)

The foundations of any structures proposed to be erected in any natural steep-slope areas or any steep-slope areas which have been disturbed will be structurally sound, including recommendations for special foundation design, if warranted.

(4)

Restoration of all 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 within 30 days of April 1. In all cases, erosion and sedimentation control measures shall be maintained on the site until replacement cover can be accomplished.

Steep slopes in excess of 50% shall not be disturbed by excavation, grading or removal of vegetation, except in the following cases:

(1)

To reclaim areas which were previously strip mined, provided the restoration complies with Chapter 9 of the Borough Code (Grading and Excavating) to create slopes which are a maximum of 50%.

(2)

To alter man-made slopes in accordance with the requirements of Chapter 9 of the Borough Code (Grading and Excavating) to create new slopes which are a maximum of 50%.

(3)

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.

(4)

To provide access to or develop recreational facilities within common open space in a Planned Residential Development (PRD) or residential subdivision for the benefit of the residents which is owned and maintained by a homeowners association.

(5)

To create a parking area or building pad in a nonresidential zoning district.

In all of the above cases where disturbance of slopes in excess of 50% is proposed, a geotechnical report and grading plan prepared by a civil engineer registered in the Commonwealth of Pennsylvania with experience in geotechnical engineering shall be submitted with the subdivision or land development plan that indicates the following:

(a)

Slide-prone soils do not exist in the area proposed for grading, alteration or removal of vegetation.

(b)

No more than 30% of the entire area designated a steep slopes in excess of 50% shall be disturbed.

(c)

The finished slopes after excavating or grading will be stable and will not create hazards for adjoining property from erosion, sedimentation or stormwater runoff.

(d)

(e)

Stripping of Topsoil. No person shall strip, excavate or otherwise remove topsoil, dirt or slag for sale, or for use other than on the lot from which it is taken, except in connection with the construction or alteration of a building on that lot and the excavation or grading incidental to that construction or unless a special permit has been obtained under provisions of the Borough Zoning Ordinance [Chapter 27].

Major Excavation, Grading and Filling.

Any major cuts, excavation, grading and filling which materially changes the drainage characteristics of the site and the site's relationship with surrounding properties shall not be permitted unless first approved by the Borough Engineer. As a condition for such approval, a plot plan of the entire tract of land on which such excavation, grading and filling are to be conducted shall be submitted by the developer to the Borough Engineer for approval. Such plot plan shall show, in addition to any other information required by the Borough Engineer to demonstrate compliance with the provisions of this section, the following information:

(1)

The existing contours of the site.

(2)

Proposed contours of the site after completion of the excavation, cutting, grading and filling.

The plot plan shall be at a scale of 50 feet to one inch or larger and have a contour interval of not more than five feet where the slope will be greater than 10% and not more than two foot intervals where the slope will be less than 10%.

The Borough Engineer shall not approve any plan in which any such excavation, grading and filling will result in a slope exceeding a vertical rise of one foot for each two feet of horizontal distance between adjoining lots or tracts of land, except where adequate provision is made to prevent slides and erosion, as approved by the Borough Engineer.

All excavation, grading and fill shall comply with the requirements of Chapter 9 of the Code of the Borough, entitled "Grading and Excavating."

Planting and Cutting of Trees, Removal of Debris.

Major shade trees should be adequately protected from injury and preserved to the extent practical.

All lot areas which slope towards streets or adjacent lots may be required to be seeded with grass or planted with ground cover so as to prevent washing and erosion.

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.

Flood-Prone Areas. Land which is naturally poorly drained or subject to flooding shall not be used for residential development or for any uses which may involve danger to health, safety and general welfare of the community. 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.

§ 22-604 Streets.

[Ord. 603, 12/30/1991, § 604; as amended by Ord. 624, 2/22/1993, § 1; by Ord. 632, 10/11/1993, § 3; by Ord. 647, 10/10/1994, § 2; by Ord. 685, 5/11/1998; by Ord. 704, 2/14/2000, §§ 4, 5; and by Ord. 792, 4/9/2007, § 1]

Layout. Streets shall be planned to conform with the layout of existing and planned streets and 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.

Topography. Proposed streets shall be planned to conform to the contour of the land, to provide buildable lots, to have a suitable alignment and grade and to allow proper drainage.

Grading. The shoulders shall be graded to six feet behind the curb and provisions shall be made for protection of slopes beyond the right-of-way.

Street Grades. Minimum and maximum grades shall be provided on all streets in accordance with the design standards specified in Appendix I. Grades shall be measured along the center of the street. Vertical curves shall be used in changes of grade exceeding 1% and should be designed in accordance with the design standards specified in Appendix I. Intersections shall be approached on all sides by leveling grades for a distance of 25 feet within which no grades shall exceed the design standards specified in Appendix I. The grade of actual intersections shall not exceed 6% in any direction.

Right-of-Way and Paving Widths. Minimum widths of rights-of-way and minimum widths of paving shall be provided in accordance with the design standards specified in Appendix I. All streets shall be paved in accordance with Borough construction standards.

Culs-de-Sac. A cul-de-sac shall not be approved when a full street is practical and a cul-de-sac shall not be more than 1,200 feet in length measured from the nearest point of its intersection with another public street to the terminus of the cul-de-sac right-of-way, unless a modification or exception is granted under Part 7 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 in Appendix I.

Temporary Turnarounds. A temporary turnaround may be required where a street is constructed to an adjoining property line. The right-of-way width required for the temporary turnaround shall be a minimum of 80 feet and the outer paving radius of the temporary turnaround shall be a minimum of 40 feet. The temporary turnaround shall be paved in accordance with the Borough construction standards for temporary turnarounds.

Visibility. No fence, hedges, shrubbery, walls, planting (other than trees and grass) or similar obstructions shall be located within the right-of-way and no such obstruction shall obscure visibility at any intersection. 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 of 75 feet measured along the center line from the points of intersection. The clear sight triangle shall be shown on the final plat for recording.

Street Names. All new street names shall be approved by the Borough. Names of new streets shall be sufficiently different in sound and spelling from existing names of streets in the Borough 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 § 22-505 of this chapter.

10.

Sidewalks. The width of sidewalks shall conform to the standards specified in Appendix I. Sidewalks shall be located in line with existing sidewalks on adjacent lots or, where none exist, shall be located adjacent to the curb or, where no curb exists, within one foot of the edge of paving. Sidewalks shall be constructed in accordance with Borough construction standards.

11.

Street Lighting.

Borough Council, upon recommendation by the Planning Commission and Borough Engineer, may require street lights to be installed by the developer at intersections of arterial and/or collector streets, as defined by this chapter or at any other intersections or locations where street lighting is deemed necessary for safety purposes.

Individually owned and maintained decorative post lamps shall be required on each lot within the plan. Certificates of occupancy shall not be issued until the connection for the decorative post lamp is provided on the lot.

12.

Secondary Means of Access.

In all residential subdivisions or land developments containing a total of 25 or more dwelling units in the entire plan, at the time that an application for preliminary approval is submitted, the applicant shall provide a secondary means of access to and from the plan. If the applicant or landowner on whose behalf the applicant submits an application owns additional land immediately adjacent to or part of a larger tract from which a subdivision is proposed, the applicant or landowner shall not divide the property into separate subdivision plans of 24 or fewer lots to avoid the requirement to provide a secondary means of access. Regardless of the amount of property included in the subdivision proposed for approval, a preliminary layout of a street system that demonstrates compliance with this subsection shall be required for the entire tract or tracts.

The secondary means of access shall meet the following standards.

(1)

The secondary means of access shall be a public street for two-way travel constructed to Borough specifications.

(2)

The secondary means of access shall be provided by one of the following alternatives:

(a)

A direct connection shall be made to an existing public street outside the proposed plan that is classified as an arterial or collector street by means of a public street right-of-way.

(b)

If a direct connection to an existing arterial or collector street is not available, a direct connection shall be made by means of a public street right-of-way to an existing local street outside the proposed plan, provided the existing local street intersects with an arterial or collector street within 2,500 feet of the local street's intersection with the secondary means of access.

(c)

If a direct connection to an arterial or collector street or a direct connection to an existing local street within 2,500 feet of an arterial or collector street is not available, a direct connection shall be made by means of a public street right-of-way to an existing local street outside the plan. If the primary means of access to the plan is proposed from the same existing local street, the secondary means of access shall be located at least 1,500 feet from the point of intersection of the primary means of access with that existing local street.

(d)

If a secondary means of access as described in Subparagraph (a), (b) or (c) is not available, a direct connection shall be made by means of a public street right-of-way to a proposed public street in a development that is pending approval or under construction on immediately adjacent property.

(e)

If a secondary means of access as described in Subparagraph (a), (b), (c) or (d) is not available, a direct connection shall be made by means of a fifty-foot public street right-of-way dedicated to the property line of immediately adjacent undeveloped property for the purpose of extending a future public street into the undeveloped property. In this case, the applicant shall submit a drawing analyzing the feasibility of extending a future public street into the adjacent property at the selected location.

(f)

If a secondary means of access as described in Subparagraph (a), (b), (c), (d) or (e) is not available, a direct "emergency only" connection shall be made by means of a public street right-of-way to an existing public street to provide access to the plan by emergency vehicles. Use of the "emergency only" access may or may not be restricted to emergency vehicles, subject to approval by Borough Council.

(3)

In evaluating the alternative proposed by the applicant for providing the secondary means of access, the Planning Commission and Borough Council shall consider whether the alternative proposed is the least disruptive to existing neighborhoods, considering the number of homes affected by the increased traffic, the width and condition of the existing cartway, the availability of off-street parking, the feasibility of on-street parking and any other relevant factors.

(4)

When the primary means of access connects to an existing public street in an established neighborhood and the secondary means of access is not proposed to be constructed in Phase One of a phased development plan, the construction of the secondary means of access shall be bonded with the public improvements in Phase One. The approved secondary means of access shall be constructed to Borough standards within the entire limits of the right-of-way approved in Phase Two during the construction of Phase Two.

(5)

When the primary means of access connects to an existing public street in an established neighborhood, the secondary means of access shall be used for all construction vehicles entering and leaving the plan during construction and following completion of the secondary means of access until all subsequent phases of the plan have been completed.

§ 22-605 Service Streets.

[Ord. 603, 12/30/1991, § 605]

Service streets, as defined by this chapter, shall not be permitted in residential developments, but may be provided in commercial and industrial developments where needed for loading, unloading or secondary access. Service streets shall meet the minimum Borough standards.

§ 22-606 Easements.

[Ord. 603, 12/30/1991, § 606; as amended by Ord. 791, 4/9/2007, § 12]

Easements for sanitary sewers and waterlines shall be required to have a minimum width of 20 feet. Where utilities are located behind dwellings, in a valley or in a constricted area, easements for access shall be provided at appropriate intervals to ensure an adequate area for work to be performed, if required.

Where a subdivision is, or will be, traversed by a watercourse, a stormwater easement or drainage right-of-way shall be provided of a width sufficient for the purpose, but in no case shall the easement or right-of-way be less than 20 feet.

§ 22-607 Lots.

[Ord. 603, 12/30/1991, § 607; as amended by Ord. 746, 7/14/2003, § 13; and by Ord. 791, 4/9/2007, § 13]

The following standards shall apply to all lots proposed to be subdivided or developed in accordance with this chapter.

Area. Minimum lot area shall conform to the requirements of the Borough Zoning Ordinance [Chapter 27]. In the case of attached dwelling units, the division of existing structures along common walls may be approved even if the lot area for each dwelling unit does not meet the minimum requirements of the Zoning District, provided the building in which the dwelling units are located met the minimum lot area requirements of the Zoning Ordinance at the time of approval for construction and the number of lots created out of the original approved lot is no greater than the number of dwelling units in the building constructed on that lot.

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 Borough Zoning Ordinance [Chapter 27].

Subdivisions Along Common Walls. In the case of single-family attached, two-family, triplex, fourplex or townhouse dwelling units, the dwelling units may be subdivided along common walls for the purpose of conveying the units in fee simple after construction even though the resulting lots are less than the minimum lot area or lot width required by the Borough Zoning Ordinance [Chapter 27], provided the original lot containing the attached dwelling units meets the lot width and lot area required for the dwelling type at the time of construction, there is no increase in dwelling unit density and there is no further subdivision of any common open space approved in the original plan.

Double Frontage. Double frontage lots, other than corner 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 plat shall contain a notation restricting vehicular access to one frontage.

Side Lines. Whenever practicable, the side lines of a lot shall be at right angles or radial to the right-of-way lines of streets.

Building Lines. Building lines of lots shall conform to the minimum requirements of the Borough Zoning Ordinance [Chapter 27] and shall be shown on the final plat. In the case of attached dwelling units, the division of existing structures along common walls may be approved even though the zero side yard along the common wall does not meet the minimum side yard requirements of the Zoning District, provided the side yards for the exterior side walls of the structure containing the attached dwelling units comply with the side yard requirement for the District.

Grading. Lots shall be graded to provide drainage away from buildings and, where practical, 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 Borough Engineer, to drain off surface water within the development.

Driveways.

(1)

Driveways serving single family and two family dwellings are not required to be paved; however, in lieu of paving, the driveway shall have a covering of slag at least two inches thick for a distance of 30 feet from the right-of-way of the street. All other driveways shall be paved in accordance with the Borough construction standards and/or the Pennsylvania Department of Transportation Design Manual, Part 2, Chapter 18.

(2)

No driveway shall have a slope of more than 15%. Driveways may extend from the right-of-way line of the street to the cartway of the street, but shall not change the grade or contour of the street right-of-way, nor shall any person cut into, fill, or in any way alter any gutter, curbing, drainage ditch or storm sewer, within the right-of-way of a street or easement for the purpose of extending a driveway; or for any other purpose without first obtaining a permit therefor from the Borough Building Inspector.

Accessibility. Every lot shall be accessible to emergency and public safety vehicles.

House Numbers. House numbers shall be assigned by the Borough Building Inspector and must be posted at each house so as to be easily visible and readable from the street.

§ 22-608 Stormwater Management.

[Ord. 603, 12/30/1991, § 608; as amended by Ord. 741, 12/30/2002, § 1; and by Ord. 746, 7/14/2003, § 14]

Stormwater management facilities shall be provided for subdivisions and land developments in accordance with the requirements of Chapter 26, "Water," of the Code of Ordinances of the Borough of Jefferson Hills.

§ 22-609 Storm Sewers and Drainage Facilities.

[Ord. 603, 12/30/1991, § 609; as amended by Ord. 685, 5/11/1998; by Ord. 687, 9/14/1998, § 4; by Ord. 741, 12/30/2002, § 1; by Ord. 746, 7/14/2003, §§ 15-18; by Ord. 791, 4/9/2007, § 14; and by Ord. 819, 2/13/2012]

Size and Grade. Storm sewers shall be sized to carry the anticipated runoff for a twenty-five-year, five minute storm event as per the current edition of the Pennsylvania Department of Transportation, Design Manual Part 4 for the watershed in a fully developed condition. The minimum diameter for a storm sewer shall be 15 inches in diameter in public street rights-of-way. The minimum grade for storm sewer pipes shall be 2% unless approved by the Borough Engineer.

Manholes. The maximum distance between manholes, inlets and/or catch basins in a storm sewer system is 200 feet, unless approved by the Borough Engineer. Manholes shall also be installed at all points of changes in grade or alignment. Inlets or catch basins may be substituted for manholes where practical.

Inlets. Inlets of the type shown in the Borough construction standards shall be installed. Inlets at street intersections shall be placed on the tangent and not on the curved portions.

Castings. Manholes and inlet castings shall be as indicated in the Borough construction standards.

Stormwater Roof and Driveway Drains. Stormwater roof and driveway drains from all proposed structures shall extend to the underground storm sewer system. At no time will the stormwater runoff from these facilities be allowed to discharge directly onto the ground or pavement. The minimum size for a storm sewer system collecting roof drains and no other surface water is eight inches in diameter. This storm sewer system shall be designed to carry the anticipated runoff for a twenty-five year, five minute storm event as per the current edition of the Pennsylvania Department of Transportation, Design Manual Part 4 for the watershed in a fully developed condition.

Unnatural Drainage. Natural drainage patterns shall not be changed by concentrating the drainage patterns or creating additional overland sheet flow onto adjoining properties due to construction. If new drainage patterns are created, the developer shall be responsible for the redirection of the unnatural drainage flow by an approved storm drainage system. Approval of development plans by the Borough do not relieve the developer of the responsibility of creating unnatural drainage patterns that affect adjoining properties.

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 water courses in the Borough shall not be permitted unless approval in writing is obtained from the Borough Council. A permit must be obtained from the Department of Environmental Protection (DEP) of the Commonwealth of Pennsylvania for construction or changes in a water course subject to the regulations of the Pennsylvania Department of Environmental Protection.

Bridges and Culverts. All bridges and culverts shall be designed to support expected loads and to carry expected flows and shall be constructed to the full width of the right-of-way. They shall be designed to meet current standards of the Pennsylvania Department of Transportation.

(Reserved)

10.

Storm Sewer Cleanouts. A storm sewer cleanout may be utilized at the terminus of a storm sewers used for roof drain collection only. A maximum of two structures may discharge into a storm sewer that utilizes a cleanout at the terminus of the storm sewer line. The maximum distance between cleanouts is 150 feet. Cleanouts may not be installed on any storm sewers larger than 10 inches in diameter. The cleanout shall be a SDR 35 PVC or equal pipe a minimum of six inches in diameter. A SDR 35 PVC or equal cap shall be installed on top of the cleanout and shall have a recessed nut head for future maintenance.

11.

Storm Sewer Laterals. Lateral connections shall be installed for each roof drain, foundation drain and/or driveway drain for each structure or lot at the public street right-of-way or edge of a proposed easement for each structure prior to paving. The storm sewer laterals shall be connected to a manufactured wye in the main storm sewer line and a cleanout shall be installed at the right-of-way or edge of the easement upon the completion of the backfilling.

12.

Storm Sewer Pipe Material. Storm sewer pipes shall be made of corrugated plastic pipe with a smooth interior (ASTMF-405, AASHTOM-252), Class IV reinforced concrete pipe or Polyvinyl chloride (PVC) pipe (SDR 35 or thicker, ASTM 3034). A combination of the above pipes may be required on a single land development as required by the Borough Engineer.

13.

Trench Bedding and Backfill. Trench bedding and backfilling for pipes shall be installed as indicated in the Borough Construction Standards. No slag shall be permitted as bedding or backfill. The bedding for manholes shall be a minimum of six inches of compacted PennDOT 2A stone or aggregate. The backfill for manholes shall be six inches of 2B stone or aggregate on all sides of the manhole if the manhole is in a paved area or within five feet of the back of the curb or compacted fine earth if the manhole is in the side or rear yards of the lots. The use of all types of slag is prohibited.

14.

Testing.

All storm sewers shall be inspected prior to acceptance by the Borough by closed circuit television (CCTV). The video shall be on DVD format at a rate no faster than 30 feet per minute. The operator shall be PACP-NASSCO certified and a report, in NASSCO format, shall be provided.

A copy of the video shall be delivered to the Borough at the time of requesting acceptance of the storm sewers. The CCTV inspection shall be at the developer's expense and the cost shall be included in the completion bond.

The sewer sections, manholes, cleanouts, inlets and catch basins shall be clean of all debris prior to acceptance. The developer shall bear the costs related to the repairs and cleaning of the sewers.

15.

Tap In Fee. Each lot in a subdivision, whether developed or vacant, will be assessed a storm sewer tap in fee. Payment of the fee shall be due at the time of execution of the development agreement, or if a development agreement is not required, as a condition precedent to the Borough signing the final plat. Fees shall be based on the fee schedule adopted by the Borough annually. A note shall be shown on the Plan for Recording indicating this requirement.

16.

Location. All storm sewers shall be placed along a public street or in front of all buildings, unless specific site conditions prohibit such location and an alternate location has been approved by the Borough Engineer.

§ 22-610 Sanitary Sewers.

[Ord. 603, 12/30/1991, § 610; as amended by Ord. 741, 12/30/2002, § 1; by Ord. 746, 7/14/2003, §§ 19, 20; and by Ord. 791, 4/9/2007, § 15]

Installation. Sanitary sewers shall be conventional gravity flow type and shall not be designed to be in fill areas. Only under conditions approved by the Borough Engineer will sanitary sewers be permitted in fill areas. Pipe installation shall comply with Unibell Specifications UNI-B-5-78 and the following specifications.

Minimum Size and Grade. All sewers shall be designed to line and grade with a uniform slope between manholes. Curvilinear alignments horizontal or vertical between manholes shall not be permitted. Sewers shall be designed to maintain a minimum mean velocities of two feet per second. The minimum size and grade for sanitary sewers shall be eight-inch diameter and 1% slope, respectively.

Laterals. Lateral connections, where required, shall be installed for each primary structure or lot at the public street right-of-way or edge of a proposed easement for each structure prior to paving. The sanitary sewer laterals shall be connected to a manufactured wye in the main sanitary sewer line and a cleanout shall be installed at the right-of-way or edge of the easement upon the completion of the backfilling. The cleanout shall be an SDR 35 PVC or equal pipe a minimum of six inches in diameter. An SDR 35 PVC or equal cap shall be installed on top of the cleanout and shall have a recessed nut head for future maintenance.

Service Sewers. Service sewers to homes and commercial establishments and facilities that do not serve food, shall be a minimum of six inches in diameter with a minimum grade of 0.25 inches per foot. The installation of the service sewers shall be inspected and approved by the Allegheny County Plumbing Department prior to backfilling the trench. Service sewers to all commercial establishments and facilities that serve food shall be a minimum of six inches in diameter with a minimum grade of 0.25 inches per foot, and shall be equipped with an approved grease trap in conformance with SD-1050a and SD-1050b. The installation of the service sewers and grease traps shall be inspected and approved by the Allegheny County Plumbing Department prior to backfilling the trench.

Design Loads and Cover. All sanitary sewers shall be designed to prevent damage from superimposed loads. All sanitary sewers shall be designed to provide a minimum of three feet of cover over the top of the pipe and, to the extent practical, a maximum depth of 15 feet.

Backfilling Requirements. All sewer mains and laterals shall be installed and backfilled prior to the installation of any stone base or bituminous pavement for the streets. The bedding and backfilling of all sanitary sewers and laterals shall be in accordance with the Borough's construction standards.

Connection into Borough Sewers. No sanitary sewer is to be connected to the Borough's facilities until the sewers throughout the entire project are 99% completed, tested and passed the tests. The final section of sewer installed shall be tested prior to acceptance of the system.

Manholes. Manholes shall be installed at all changes in grade, sizes or alignment and at distances no greater than 200 feet. Manholes located in low-lying areas where stormwater runoff may collect, watertight manhole frames and castings shall be installed. The smallest angle as measured between the inlet and outlet lines shall be 90° or greater. Manholes shall be constructed in accordance with the Borough Construction Standards. The bedding for manholes shall be a minimum of six inches of compacted PennDOT 2A stone or aggregate. The backfill for manholes shall be six inches of 2B stone or aggregate on all sides of the manhole if the manhole is in a paved area or within five feet of the back of the curb or compacted fine earth if the manhole is in the side or rear yards of the lots. The use of all types of slag is prohibited. New manhole connections in shall be through approved flexible watertight sleeves pressed or poured into the manhole base. Machine cored entry holes and a flexible watertight gasket connection shall make connections to existing precast manholes.

Steep Slopes. Sanitary sewers constructed on slopes 20% or greater shall be of PVC SDR 21 and shall be securely anchored with concrete anchors as specified in the Borough's construction standards.

10.

Pipe Material. All sanitary sewers shall be of polyvinyl chloride (PVC) pipe with a standard dimension ratio of 35 (SDR 35) and a minimum pipe stiffness of 46 psi. All pipes and fittings shall be in accordance with ASTM 3034 and the joints shall comply with ASTM 3212. The rubber gaskets shall comply with the physical requirements of ASTM F-477, D-1869, C-361 or C-443.

11.

Testing.

All sanitary sewers shall be inspected prior to acceptance by the Borough by closed circuit television (CCTV). The video shall be on DVD format at a rate no faster than 30 feet per minute. The operator shall be PACP-NASSCO certified and a report, in NASSCO format, shall be provided.

A copy of the video shall be delivered to the Borough at the time of requesting acceptance of the sanitary sewers. The CCTV inspection shall be at the developer's expense and the cost shall be included in the completion bond.

All sanitary sewers shall be air tested for leakage in accordance with the current standards set forth in the ASTM Specifications C-828 and C-924. All equipment used for the testing shall be in accordance with the current ASTM standards.

All sanitary sewers shall be tested for alignment manually, with no mechanical assistance, by pulling a mandrel through the installed pipe. The pipe shall be installed for a minimum of 60 days prior to the deflection testing. The allowable deflection shall be 5% maximum of the pipe base inside diameter as defined in the ASTM Specification D-3034.

Manholes shall be vacuum tested for water tightness, complete with frame and casting in place. After the vacuum testing equipment is in place, a vacuum of 10 inches of Hg shall be drawn and the vacuum pipe valve off at the test plug. The vacuum shall be held for at least 10 minutes. The test shall pass if a period of one minute occurs before the vacuum pressure drops one Hg.

All tests shall be conducted with a representative of the Borough present. Acceptance testing shall be completed after backfilling has been completed. The contractor shall supply all testing equipment, and the developer shall bear all costs for testing the sewers and manholes. All repairs required after testing has been completed shall be performed by the contractor.

The sewer sections and manholes shall be clean of all debris prior to acceptance. The developer shall bear all costs related to the repairs and cleaning of the sewers.

12.

Location. All sanitary sewers shall be placed along a public street or in front of all buildings, unless specific site conditions prohibit such location and an alternate location has been approved by the Borough Engineer.

§ 22-611 Testing.

[Ord. 603, 12/30/1991, § 611]

All construction materials used in sewers, streets, sidewalks and other required improvements shall be tested by a qualified testing laboratory, if required by the Borough Engineer. The cost for such tests shall be borne by the developer.

§ 22-612 Public Utilities.

[Ord. 603, 12/30/1991; as added by Ord. 746, 7/14/2003, § 21]

Each lot shall be serviced with all public utilities including, but not limited to, gas, electric, telephone, cable and water prior to the installation of the base course for the street paving. If these utilities are not installed prior to the installation of the base course for the paving, conduit shall be installed for each lot for each utility service that crosses under the proposed street. The location of each conduit shall be clearly marked in the field with a stake, noting which service it is intended for.

§ 22-613 Easements for Active Gas Wells.

[Ord. 603, 12/30/1991; as added by Ord. 771, 5/9/2005, § 2]

If an active gas well and/or conveyance lines and/or an access road to a well or wells are located on the site of a proposed subdivision or land development, the following easements shall be provided:

An easement along the conveyance line or lines having a minimum width of 20 feet.

An easement for any access road to a well site having a minimum width of 20 feet.

An operating easement around the well head describing an area with a minimum forty-foot radius to accommodate equipment to maintain the well and to remove the well and restore the site upon completion of the drilling operation.