STORAGE FACILITIES

§ 120.050 MAXIMUM TANK CAPACITY FOR EACH PRODUCING OIL WELL.

   If oil or other liquid storage facilities are established incidental to a producing well on a drill site, such storage facilities shall not exceed a total of 2,000 barrels per well.

('81 Code, § 5.40.110) Penalty, see Ch. 13

§ 120.051 SKIM POND.

   Any open, accessible, surface or subsurface installation used for the disposal of permitted waste liquids shall be fenced in accordance with the fencing provision in this chapter.

('81 Code, § 5.40.120) Penalty, see Ch. 13

§ 120.052 LOCATION OF TANKS WITH RESPECT TO PROPERTY LINES.

   (A)   (1)   Location of an aboveground tank for storage of flammable liquids with respect to distance from the nearest line of adjoining property which may be built upon, which shall be such that the distance between any part of the tank and the line shall be not less than that set forth in the following table:

   Minimum distance of outside aboveground tanks for flammable liquids other than crude petroleum to line of adjoining property which may be built upon.

Capacity of Tank (in gallons)	Class of Flammable Liquid	Minimum Distance (in feet)
0 to 275	III-B	0
276 to 750	III-B	5
0 to 750	I, II and III-A	10
751 to 12,000	III-B	10
751 to 12,000	I, II and III-A	15
12,001 to 24,000	I, II, III-A and III-B	15
24,001 to 30,000	I, II, III-A and III-B	20
30,001 to 50,000	I, II, III-A and III-B	25

 

      (2)   Tanks with capacities in excess of 50,000 gallons and all tanks for the storage of crude petroleum shall be located in accordance with the following provisions (applicable to gas-tight tanks including conservation type tanks constricted in compliance with these or equivalent standards):

 

Product Stored	Tank Protection	Distance From Line of Adjoining Property Which May Be Built Upon Shall Be Not Less Than
	(1) An approved permanently attached extinguishing system or	Greatest dimension of diameter or height of tank, except that such distance need not exceed 120 feet
Refined petroleum products or other flammable liquids not subject to boilover	(2) An approved floating roof not equipped with either of the above	One and one-half times the greatest dimension of diameter or height of tank except that such distance need not exceed 175 feet
	(1) An approved permanently attached extinguishing system or	Two times the greatest dimension of diameter or height of tank except that such distance shall not be less than 20 feet and need not exceed 175 feet
Crude petroleum*	(2) An approved floating roof not equipped with either of the above	Three times the greatest dimension of diameter or height of tank except that such distance shall not be less than 20 feet and need not exceed 350 feet
* Or other non-petroleum product, handled in special process and chemical plants, which have boilover characteristics somewhat like those of crude petroleum.

 

   (B)   Location of any aboveground tank for the storage of flammable liquids on the premises of any Division VI, commercial and industrial establishment, or any Division VII, processing plant, with respect to the distance to the nearest building or line of adjoining property which may be built upon, shall be such that the distance between any part of the tank and such building or property line is not less than that set forth in the following table:

   Minimum distance between any outside aboveground tank for flammable liquids on the premises of any Division VI or VII occupancy to the nearest building of line of adjoining property which may be built upon.

   Diameter of Tank Minimum Distance to

    (in feet) Building (in feet)

   Under 15                  15

   15 to 30                tank diameter

   30 to 60                  30

   Over 60                ½ tank diameter

   (C)   In particular installations these provisions may be altered at the discretion of the Building and Safety Inspector after consideration of the special features such as topographical conditions; nature of occupancy and proximity to buildings on adjoining property and height and character of construction of such buildings; capacity and construction of proposed tanks and character of liquids to be stored; degree of private fire protection to be provided, and facilities of the Fire Department to cope with flammable liquid fires.

   (D)   Where two tank locations of diverse ownership have a common boundary, the Building and Safety Inspector may, with the written consent of the owners of the two properties substitute the distances provided in § 120.053 for the minimum distances set forth in the tables under this section.

('81 Code, § 5.40.130) Penalty, see Ch. 13

§ 120.053 SPACING BETWEEN TANKS.

   (A)   The location of a tank for the storage of any flammable liquid with respect to any such other tank shall be such that the distance between them shall be not less than three feet.

   (B)   For banks above 50,000 gallons individual capacity storing any flammable liquid, except crude petroleum in producing areas, the distance shall be not less than one-half the diameter of the smaller tank.

   (C)   In producing areas, for tanks storing crude petroleum and having capacities not exceeding 126,000 gallons (3,000 bbls.), the distance between tanks shall not be less than three feet; in excess of 126,000 gallons (3,000 bbls.), the distance shall be not less than the diameter of the smaller tank.

   (D)   The minimum separation between an LP gas container and a flammable liquid tank shall be 20 feet. Suitable means shall be taken to prevent the accumulation of flammable liquids under adjacent LP gas containers such as by diking, diversion curbs and grading. When flammable liquid tanks are diked, the LP gas containers shall be outside the diked area and at least 10 feet away from the centerline of the dike. The provisions set forth in this section shall not apply when LP gas containers of 125 gallons or less capacity are installed adjacent to Class III-B flammable liquid tanks of 275 gallons or less capacity.

('81 Code, § 5.40.140) Penalty, see Ch. 13