A. The applicant shall provide a sanitary sewage disposal facility suitable for the existing physical geographical and geological location and in conformance with all applicable township, state, county. and federal ordinances and/or regulations.

B. If the subdivision or land development is in an area served by a public system, the applicant shall be required to connect to the system if capacity is available.

C. Where it shall appear that the area to be subdivided or developed shall be served in a reasonable time by a collection system, capped sewers shall be installed, the sewer lines shall be suitably capped at the limits of the subdivision and the laterals shall be capped at the street right-of-way line. When capped sewers are provided, on-site disposal facilities shall also be provided.

D. All sanitary collection systems and treatment facilities shall be installed according to the standards and specifications as adopted by the East Goshen Municipal Authority.

E. The applicant shall comply with all requirements of the Chester County Health Department and the Pennsylvania Department of Environmental Protection and shall so certify prior to final plan approval.

F. All community on-lot disposal systems (COLDS) shall be subject to township approval and offered for dedication to the township.

G. All individual on-site sewer systems shall be located on the lot they shall serve.

H. If a sand-mound system is warranted, all sewage shall be aerated prior to being disposed of in the sand mound.

I. All COLDS shall be offered for dedication to the township or the Municipal Authority.

The method of construction and materials used in the installation of the above systems will be in accordance with the requirements of PADOT Publication 408, as amended, unless otherwise stated by the Engineer. All designs will be subject to the approval of the Township Engineer.

A. There shall be a minimum distance of 50 feet, measured in the shortest distance between any proposed dwelling unit and any petroleum products or natural gas transmission line which traverses the subdivision.

B. Where easements are required, they shall be a minimum width of 20 feet. No structures shall be placed within such easements.

C. To the fullest extent possible, easements shall be centered on or adjacent to rear and side lot lines.

A. Sanitary sewage collection and treatment facilities shall be provided in a manner consistent with the design standards and requirements of this chapter. Where the area to be developed and/or subdivided will be served within a reasonable time by a public sewer system, capped sewers shall be provided and approved by the township.

B. Sanitary sewage collection system design criteria.

(1) Construction drawing All drawings shall be submitted on eighteen-inch by twenty-four-inch or twenty-four-inch by thirty-six-inch sheets with a scale of one inch equals 50 feet horizontal and one inch equals five feet vertical (or with a scale of one inch equals 40 feet horizontal and one inch equals four feet vertical or as required and approved by the township).

(a) All elevations shall be based on USGS datum with bench marks noted and described and shall be tied into any bench marks established by the East Goshen Municipal Authority.

(b) Drawings shall contain a note that all construction of sanitary sewers shall be in accordance with the standards and specifications adopted by the East Goshen Municipal Authority.

(c) Drawings shall contain the name of the design engineer, the applicant and the development name. All drawings will be signed and sealed by a professional engineer registered in the Commonwealth of Pennsylvania.

(d) If required by the township, an index map at the scale of one inch equals 400 feet (or other scale to conform to the water sewer plan of the township) shall be included showing sewer sizes, manhole numbers, streets and approximate property lines. Manhole numbers shall conform to the township numbering system.

(e) Plan and profile sheets. Plan view drawn to a scale of one inch equals 50 feet and a vertical scale of one inch equals five feet (or as otherwise approved) and having the following items included thereon:

[1] Location of each existing building with elevation of any basement (plan view). If existing the invert elevation of any vent trap will be shown.

[2] Top elevations of proposed manholes (profile view).

[3] Accurate existing and proposed ground surface elevations (profile view).

[4] Proposed invert elevations of manhole (profile view).

[5] Manhole numbers corresponding to those on Index Map (plan view and profile view).

[6] Distance between manholes from center line to center line of manhole (profile view).

[7] Grade of proposed sewer (profile view).

[8] Size of proposed sewer with type and class of pipe noted (profile view).

[9] Location of proposed laterals (plan view and profile view).

[10] Location, size and elevation of all existing and proposed underground utilities. Include Act 287 information and file number (plan view and profile.

[11] All easements shown with width, distances and courses as necessary.

[12] A sheet showing standard construction details with each set of plans. These may be from the standard township detail sheet which may be included in the plan set. In addition a detail of bedding of the pipe will be put on one of the plan and profile sheets.

[13] All lots without basement service to be noted clearly on plan view and title plan.

(2) The following information will be submitted as a supplement to the construction drawings and planning modules:

(a) Number of persons or units to be served initially.

(b) Number of persons or units to be served in the future.

(c) Number of acres to be served initially.

(d) Number of acres to be served in the future.

(e) Initial and future sanitary sewer flows if the development is other than residential.

(f) Design assumptions and source material.

(3) As-built drawings. Prior to acceptance of the work, copies of as-built drawings shall be submitted by the applicant. As-built drawings will be copies of the approved construction drawings. Existing design numbers (top and invert elevations, pipe lengths and slopes) shall be crossed out with one line so that the original numbers can still be determined. As-built numbers will be indicated below the crossed out numbers. A statement that the drawings are as built shall also be submitted. In addition to other information, plans will show locations and depths of all lateral stabs. Locations shall provide a minimum of three dimensions and depth shall be from a permanent object such as curbing, etc. All easements shall be shown and shall be fully described. Property lines shall be located accurately by scale with respect to the sewer.

(4) Design criteria. All designs shall be in accordance with Pennsylvania Department of Environmental Protection criteria as well as additional criteria from other agencies having jurisdiction such as PADOT and county or local agencies. The following are general criteria that are not meant to be all inclusive. Criteria will apply to public or private sewers. Private sewer systems will be constructed and inspected to municipal standards.

(a) Service. Sewers will be of a depth that will provide service to all basements. (All lots that cannot have basement service must be noted on the plans.) Design engineers shall note the required first floor elevations of proposed buildings in the low-lying areas where necessary to ensure service. Any basements that are not served must be approved by the Authority Engineer. Land adjacent to off-site sewers that are to be constructed by the developer will be investigated for possible future connections to prevent future road openings. The municipality may require installation of wyes and lateral stubs as appropriate.

(b) Laterals. Minimum diameter shall be four inches. Where a larger lateral is required it will be noted on the plans. Minimum grade on a lateral will be 1/4 inch per foot unless otherwise approved by the Authority Engineer. Maximum length of a lateral will be 150 feet unless approved otherwise by the Authority Engineer. Clean out will be installed as required by other ordinances.

(c) Manholes. Maximum manhole spacing will be 350 feet. Spacing of 400 feet between manholes may be used with the permission of the Authority Engineer in special cases. Manholes will not be located in or near the gutter line of the road where they will be exposed to surface flooding. All manholes win have a drop of 0.2 feet between the inlet and outlet built-in. Manhole cones will be a minimum of three feet. Shorter cones and slab-top manholes may be used only with the permission of the Authority Engineer. Watertight lids will be used and noted on the plans when the manhole is within a one- hundred-year floodplain or may become submerged. Manholes will be provided at all chances in grade size of pipe or alignment. In all manholes, the pipes entering and leaving shall be oriented so that the flow angle is more than 90'.

(d) Sewer design.

[1] Minimum sewer size will be eight inches in diameter with a minimum grade of 1.2% for eight-inch sewer.

[2] Minimum cover over the top of the sewer shall be 4 1/2 feet unless special construction precautions such as cast-iron pipe or concrete encasement are specified and approved.

[3] When sewers are designed with a grade in excess of 20%, steep slope anchors will be installed.

[4] Sewer easements outside of public rights-of-way shall have a minimum permanent width of 20 feet and a construction width of 30 feet.

[5] When a sewer crosses a stream or ditch, the design shall be in accordance with Pennsylvania DEEP rules and regulations.

[6] Sewers shall be located a minimum of 10 feet horizontally from any obstruction such as a building. Sewers must be a minimum of 10 feet from a water main or 18 inches (measured from top of sewer to bottom of water main) under the same. When a sanitary sewer line crosses above or under any other pipeline with separation of less than 18 inches, the sanitary line will be provided with concrete encasement per the standard detail that extends 10 feet on either side of the pipe being crossed.

[7] When connecting to an existing manhole which contains an existing pipe of larger diameter, the contractor will match elevations of the tons of both pipes

[8] Depths of sewers along a stream shall be adequate to serve the other side of the stream

(5) Erosion and sedimentation control plans will be submitted wherever sewers are being constructed through land not covered by the overall erosion and sedimentation plan.

(6) Pump station and/or meter pit plans and specifications will be complete and detailed and must be reviewed and approved by the Authority Engineer. Shop drawings shall be submitted prior to construction.

(7) All permit forms must be filled out by the applicant and will be submitted to Pennsylvania DEEP by the East Goshen Municipal Authority.

(8) Plan reviews, inspections during construction and final inspections will be by the Municipal Authority Engineer.

C. All improvements installed shall be constructed in accordance with the design standards and specifications adopted by East Goshen Municipal Authority. If there are no applicable township, county or state regulations, the township may authorize that specifications be prepared by a registered professional engineer.

D. Sanitary sewage treatment facilities design criteria.

(1) All facilities shall be in accordance with the requirements of the Department of Environmental Protection.

(2) If a private or community sewage disposal system (other than an on-lot system serving one dwelling unit) is proposed, the township shall review and approve the plans and inspect the construction.