formation in the Overflow Overflow Overflow Unknown on on tank. finished finished discharge In cold water water point integrity of climates, storage tank on storage storage finished tank tank is provisions Is the water directly discharges storage at [add other Does Does should tank improper be Does drain connected inaccessible to a considered to the the the height. sanitary components improvement (see sewer, to prevent photo needed. #) the (see combined consolidate flapper or for photo sewer language]. #) or storm line have duckbill sewer drain. from Overflow must freezing shut. an air be (see photo to an #) The Overflow sanitary must gap over no of elevation discharge surveyor was over a less an 3 or between drainage 12 inlet and No unable overflow to than inlet more 24 may structure, evaluate inches be directly the splash above 12 pipe the plate, connected ground or to a tank drain [add inches surface and other sanitary engineered but splash no discharge combined over sewer a components to more plate, above drainage inlet or consolidate], storm sewer or the than drain. structure, and the An water splash air 24 plate, or gap system must was be not inches to able present engineered to produce such any that the documentation the storm of overflow the condition pipe or terminates at of these least components. three pipe diameters Each item above that the could ground not be level at inspected the sewer during or storm drain, or the sanitary over survey a splash must be pad. inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank inspectors can be third-party professionals or appropriately trained in-house staff. In to
formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 inches but no more than 24 inches the Overflow on finished water storage tank discharges at improper height. (see photo #) Overflow must be to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered Does the over an inlet splash plate, or Overflow discharge point on finished water storage tank improvement needed. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered Does the have an air gap of 3 or more pipe above the to any storm or Overflow on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the drain for Unknown integrity of storage tank [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce documentation of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank inspectors can be third-party professionals or appropriately trained in-house staff. In to
ss_tribal_form.docx