255.811 Leaks: type 1 classification.

(a)A type 1 leak is one which, due to its location and/or relative magnitude, constitutes a potentially hazardous condition to the public or buildings.#

(b)A type 1 leak requires an immediate effort to protect life and property.#

(c)Continuous action shall be thereafter taken until the condition is no longer hazardous.#

(d)Completion of repairs shall be scheduled on a regular day-after-day basis, or the condition kept under daily surveillance until the source of the leak has been corrected.#

(e)Type 1 leaks include, but are not limited to:#

(1)damage by contractors or outside sources resulting in leakage;#

(2)any indication on a combustible gas indicator (CGI) of natural gas entering buildings or tunnels;#

(3)any reading on a CGI within five feet (1.5 meters) of a building wall;#

(4)any reading of four percent or greater gas-in-air on a CGI within manholes, vaults or catch basins (sampling will be conducted with the structure in its normal condition as nearly as physically possible); or#

(5)any leak which, in the judgment of the operating personnel at the scene, is regarded as potentially hazardous.#