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(1) The utility interval shall conduct regular scheduled inspections within a periodic interval of not more than three months of each pit housing pressure-regulating and pressure-limiting equipment to determine if it is in physical condition and adequately ventilated.

(2). An inspection shall include the testing of the atmosphere in the pit for combustible gas.

(3) If gas is found in the atmosphere of the pit, the equipment in the pit shall be inspected for leakage and the source of the leakage sealed.

(4) The ventilating equipment shall also be inspected to determine if it is functioning properly and the ventilating ducts cleared if obstructed.

(5) The condition of the vault and pit covers shall be carefully examined to ensure that they do not present a risk to public safety.