□ | Grinder basin must be set at a depth so as to provide a minimum of 3” above final grade. |
□ | Basin will have a minimum of 240 lbs of concrete around the base of the basin so as to prevent floating, settling, or shifting. |
□ | Basin shall be placed on a level concrete pod – minimum 4” thick. |
□ | If installation of basin to the proper depth cannot be met the plumber must contact the District for approval. |
□ | Inlet pipe from residence must enter basin at a height so as to provide a minimum of 30” clearance from the bottom of basin to center of the inlet pipe. |
□ | All piping, hubs, etc., leaving or entering tank will be sealed with a waterproof silicone type material to prevent leakage. |
□ | Discharge pipe leaving tank and continuing to tap at sewer main will be no less than 1 ¼” schedule 40 PVC pipe. Have no 90-degree bends and be buried to depth of at least 12”. |
□ | Any discharge line running under any concrete structure must have a sleeve pipe of at least 3” and contain no other piping in this line. |
□ | If an extension to the grinder basin is required to meet specs, the contractor must pay for and have the plumber install to District specifications. |
□ | The discharge line running from the basin to the street must be properly bedded with a sand backfill, no rocks will be allowed in the discharge ditch line. |
□ | A line inspection must be called for prior to any final inspection request. If a line inspection has not been made and the lines are covered without approval, the plumbing contractor will be required to uncover the lines for inspection. |
□ | There must be a working outside hose bib at each residence to provide the District a means of filling a tank for final inspection and for future cleaning when needed. |
Once the line inspection has been made and all of the above requirements have been met and checked off the plumbing contractor must sign below and return this form to the AMUD Office.
By signing this document you are stating that plumbing has been installed in accordance with stated construction practices and in compliance with District LPWWS Policy and Procedures.
License #: ____________
Signed this day by: _________________________________________ Date: _______________
Service Address: ________________________________________________________________
