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• A list of the required engineering disciplines <br />• Basin Study and design flows <br />• Wet well calculations <br />• Pump and discharge calculations <br />• Architectural and structural considerations <br />• Site plans <br />• Force main and valving recommendations <br />• Electrical needs and redundant power sources <br />• Number, make, type, and sizes of pumps <br />• Recommendations for controls and level sensing and drives (Fixed or VFD) <br />• Communications (Telemetry and/or SCADA) <br />• Odor control recommendations <br />• Specifications required <br />• Plans required (civil, structural, electrical mechanical, P&ID's, logic, etc.) <br />G. Service Lines <br />Provide independent connections to the public wastewater system to all lots and parcels. <br />Service lateral pipes within the public rights-of-way shall be a minimum of 6 inches. <br />Private service lateral pipes located in public easements may be a minimum of 4 inches <br />and be constructed and extended to the back of the public utility easement (PUE) with <br />the public construction permit for the public mainline. A 6 -inch public service extending <br />from the mainline to the property line is adequate to serve 3 lots. The extension of the <br />public wastewater system shall be required when more than 3 residential lots are to be <br />served by the system. <br />Service laterals shall: <br />• Connect into manholes wherever possible. <br />• Connect directly to the mainline at right angles where blind connections are <br />allowed. <br />• Connect into a manhole where the lateral approaches the mainline at greater <br />than 30 degrees from perpendicular. <br />• Connect to the mainline with a manhole where the lateral is 8 -inch diameter <br />and greater. <br />Laterals may: <br />• Connect to a mainline with a blind connection when the diameter of the <br />lateral is twice the size of greater than the diameter of the mainline. <br />• Connect into a manhole where the lateral approaches the mainline at greater <br />than 30 degrees from perpendicular. <br />Public Improvement Design Standards Manual, 2016 Page 2-49 <br />