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