City of OKC
Fire Department MenuFire Suppression Water Tanks
Fire Suppression Water Tanks
Above-ground or underground tanks (and related water lines for these tanks) for sprinkler system water supply or for drafting by fire apparatus for manual water supply must be inspected by the Fire Marshal and be subjected to an air test witnessed by the Fire Marshal.
Contact the Fire Marshal's Office, (405) 297-3584, to schedule these tests 10 to 14 days prior to placement of the tank.