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