Current through Register Vol. XLI, No. 50, December 13, 2024
Section 150-4-8 - Safety Requirements8.1. Accidents. 8.1.1. Every utility shall keep a record of every accident happening in connection with the operation of its plant, station, property, and equipment, whereby any person shall have been killed, or seriously injured, or any property damaged or destroyed, with a full statement of the cause of such accident, and the precautions taken to prevent similar accidents in the future.8.2. Odorization of natural gas. 8.2.1. Where and when used -- Each utility furnishing natural gas to domestic or commercial customers, churches, schools or public buildings, shall determine whether or not the presence of gas can be detected by odor when diluted with air at a concentration of not more than twenty percent (20%) of lower explosive limits. If the presence of gas cannot be detected, then that gas shall be odorized as stated in Rules 8.2.2. and 8.2.3.8.2.2. Safety of odorant -- The odorant used shall be harmless and nontoxic and shall be noncorrosive to materials such as steel, iron, brass, bronze or leather, and shall not be soluble in water to a greater extent than two and one-half (2 1/2) parts, by weight of odorant to one hundred (100) parts, by weight of water.8.2.3. Specifications -- The odorant to be introduced into natural gas shall be of such character as to indicate by distinctive odor the presence of gas when such gas is present in concentrations not greater than one percent (1%) by volume. By this, it is meant that the gas shall be given an odor by adding an agent that will vaporize, dissolve in or be mixed with the gas so as to produce an odor readily perceptible to normal or average olfactory sense of a person coming from fresh ungasified air when gas is present in concentrations of not more than one part to ninety-nine (99) parts air.8.2.4. Report to Commission -- Each utility shall file with the Commission a report of its plan for odorization.8.2.5. Notice to customer. 8.2.5.a. The utility shall give notice to its customers in the area in which gas has been odorized.8.2.5.b. It is not intended from these rules that an odorant be introduced into main transmission, field or gathering lines. However, if a church, school or public building is supplied with gas service from any of the above lines, the service piping and building piping to such church, school or public building shall be tested by pressure drop method.8.3. Approval of standard safety requirements concerning customer connections. 8.3.1. Every utility shall include a statement in its tariff on file with the Commission which shall list or set forth the title of the publication listing all safety requirements and provisions adopted by the utility governing the installation and maintenance of customers' gas appliances, as well as the customer service, buried and house piping. Each utility shall keep a copy of such safety requirements and provisions available for public inspection at each of its offices.