(A) Electrical equipment. All electrical equipment used, operated, installed or maintained within 50 feet of a drilling well and within 25 feet of a producing well shall be installed and maintained in accordance with the regulations of the State Electrical Safety Orders, Article 22, Hazardous Locations, Class 1, Division 2.
(B) Internal combustion engines, storage tanks, fired equipment and open flames. No internal combustion engine (except those engines and their fuel tanks used in drilling, production and servicing of oil wells), storage tanks, boiler, fired equipment or open flame (except welding activities supervised by the operator’s production foreman, drilling foreman, drilling engineer, drilling supervisors or safety supervisors) shall be located closer than 25 feet to a producing well or closer than 100 feet to a drilling well. During drilling operations on a drill site, where two or more wells are drilled and drilling and production equipment are located, the provisions of this chapter relating to distances of storage tanks may be modified by the Agency in the public interest, after its consideration of special features related to such site, such as: topographic conditions, height, the nature of the occupancy, character of construction of and proximity of buildings on adjoining property; capacity and construction of proposed tanks and nature of the liquids to be stored therein; the degree of private fire protections to be provided at the sites and facilities of the city’s Fire Department to cope with flammable liquid fires.
(C) Flammable waste gases and vapors. Flammable waste gases or vapors escaping from a production drill site shall be burned or controlled to prevent hazardous concentrations reaching sources of ignition or otherwise endangering the area surrounding the site.
(1) Flares. Means of ignition approved by the Agency shall be provided wherever hydrocarbon gases are released to the air through flares.
(2) Venting. Nonburned gases or vapors shall not be discharged to the atmosphere unless approved by the Agency and shall not be discharged less than 20 feet vertically above grade and not less than 25 feet horizontally from any source of ignition. The discharge shall be at locations which do not create a hazard to the general area of the discharge.
(D) Smoking. No person shall smoke or cause, permit or assist another person to smoke within 50 feet of any well, tank location or any area contaminated by oil or waste gas.
(E) No smoking signs. "NO SMOKING" signs shall be posted and maintained in all locations where no smoking is required by this title. All such signs shall have letters at least four inches in height and not less than one-half inch stroke. They shall be posted and maintained at readily visible locations approved or designated by the city’s Fire Chief. The signs shall bear red letters on white background.
(F) Fire control equipment. Fire suppression appliances, equipment and materials, including first aid fire appliances shall be provided by the permittee in a quantity and at locations specified by the city’s Fire Chief. All such equipment shall meet the current National Fire Protection Association standards.
(`78 Code, § 14.20.080.)