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- <br /> e <br /> Table 3. Tank Inspection and Pumping Schedule <br /> Maximum Thickness(Indies) <br /> • Tank Type Inspection Point <br /> • <br /> • Scum • Sludge Combined <br /> Kitchen Septic Tank(1,500 gallon Waite Concrete Products) Inlet Riser 4 13 17 <br /> Primary Septic Tank(1,500 gallon Waite Concrete Products) Inlet Riser 4 13 17 <br /> Pre-Existing Primary Septic Tank(1,000 gallon Hank's Concrete Products) Center Riser 3 9 12 <br /> Surge Dosing Tank(1,500 gallon Waite Concrete Products) Inlet Riser 2 6 8 <br /> Notes: <br /> Scum refers to the floating solids that accumulate on top of the liquid. <br /> Sludge refers to the settled solids that accumulate at the bottom of the tank. <br /> Use 3/16"hex key to unscrew stainless steel bolts and remove riser lid. <br /> Use a PVC pipe with a flange fitting as a"sludge judge. <br /> Measure and record each item as outlined above. <br /> If any of the readings exceed the values shown in the table,schedule the tank for pumping. <br /> Instruct the pumper to concentrate on the removal of solids from the tank. <br /> Clean effluent screens at the time of pumping,if applicable. <br /> CES-Albany,OR St.Innocent Winery!0&M Manual <br /> Doc: 2018240028 St.Innocent Winery OM tables-forms-O&M Table 3 May 2018 <br />