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