PEGASUS SEWER AUTHORITY Conemaugh Township, Cambria County  Johnstown, Pennsylvania Lateral Connection Specification

Specifications for
Sanitary Sewer Lateral Installlation

• No stormwater or groundwater is permitted to drain into the sanitary sewer lateral.
• No pipe smaller than 4 inch diameter can be used on the customer lateral. Additional intermediate cleanouts are required at all bends 11 1/4 degrees or greater and at  100 foot  intervals.
• A trap is mandatory on the lateral
• An inspection port is mandatory located on or near the property line
• All pipe and fittings must meet or exceed the following specifications:
• PVC (plastic) - SDR 35, ASTM 3034, SCH40 (push on)
• DIP (ductile iron pipe) - CL50, CL51 Double Cement Line (ANSI A.21.51, A.21.10)
• All sewer laterals must be buried to a depth to prevent freezing (recommended minimum depth is 4 feet).
• All sewer laterals must be properly bedded on a 4 to 6 inch layer of tamped stone (2RC, 2A Modified or Limestone Dust) and, upon inspection and approval by the Authority's inspector, backfilled with at least 12 inches of tamped stone above the sewer lateral with the remainder of the trench backfilled with select suitable material.
• The Authority requires the placement of an impermeable "dike" somewhere in your trench for your connection line.  The sewer mains and your connection line are bedded in gravel.  This can allow  groundwater to flow along the lines to your foundation causing possible foundation or basement problems with water.  Persons in other local sewer projects have reported  groundwater flowing into their property along the gravel bed.  A clay dike somewhere in your connection trench will prevent the flow of groundwater onto your property.
• The Pegasus Sewer Authority strongly  reccomends, but does require that lateral connections include an anti backflow valve located somewhere close to the dwelling.  Use of this device may prevent back flows of sewage from the line into your home during especially rainy or wet periods, and

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