15-26-700 Container storage – Safety clearances.

   Whenever one or more containers of liquefied petroleum gas are installed for use outside, the following safety clearances, as shown in Table 15-26-700 and as defined in Section 15-24-250, shall be maintained:

Table 15-26-700
Minimum Distances in Feet

Water Capacity Per Container	Between Container and Other Buildings on Same Property		Between Container and Building Occupied in Whole or in Part as Institutional Assembly or Open Air Assembly
	Underground	Aboveground	Underground	Aboveground	Between Aboveground Containers
Less than 125 gals. (See Note 1)	10 (See Notes 2 & 3)	None	100	100	None
125 gals. to 500 gals.	10	10	150	150	3
501 gals. to 1,000 gals.	25	25	150	150	3
1,001 gals. to 30,000 gals.	50	50	250	250	5
30,001 gals. to 70,000 gals.	75	75	250	250	5
Less than 125 gallons (See Note 1)	10	10	15	15
125 – 501	15	15	25	25
501 – 1,000	25	25	50	50
1,001 – 2,000	50	50	50	50
2,001 – 10,000	50	50	75	75
10,001 – 15,000	50	50	100	100
15,001 – 30,000	75	75	100	100
30,001 – 70,000	100	100	150	150

 

   Note 1. If the number of 100 lb. LP gas capacity cylinders in a multicylinder installation at a consumer site is greater than eight, the minimum distance shall comply with the appropriate portion of this table, applying the aggregate capacity rather than the capacity per container. If more than one installation is made, each installation shall be separated from another installation by at least 25 feet. Do not apply the minimum distances between aboveground containers to such installation.

   Note 2. The filling connection and the vent from the liquid level gauges in containers, filled at point of installation, shall be not less than ten feet in any direction from air openings into sealed combustion system appliances or mechanical ventilation air intakes.

   Note 3. The discharge from safety relief devices shall be located not less than three feet horizontally away from any building opening which is below the level of such discharge.

   Whenever containers are discharging into a common manifold, the aggregate water capacity shall be used in determining the safety clearances; except that, when not more than three containers, none of which have an individual water capacity greater than 1,000 gallons, are manifolded, the individual capacity of the largest container shall be used in determining the safety clearances. (See Table 15-26-700.)

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)

15-26-710 Temporary container storage – Safety clearances.

   Whenever cylinders of liquefied petroleum gas are stored outside awaiting use in connection with buildings classed as industrial or storage or construction-sites, the safety clearances as shown in Table 15-26-710, and as defined in Section 15-24-250, shall be maintained. (See Table 15-26-710.)

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616; Amend Coun. J. 4-15-15, p. 106130, § 13)

Table 15-26-710
Minimum Distances in Feet

 

Aggregate Capacity of Cylinder Groups	Groups of Cylinders and Buildings on the Same Property	Between Cylinder Storage Groups	Between Groups of Cylinders and Adjoining Property	Groups of Cylinders and Buildings Occupied as Institutional, Assembly or Open Air Assembly
2,500 lbs. or less	None See Note 1 and 2	10	10	100
2,501 to 6,000 lbs.	25	25	25	250
6,001 to 10,000 lbs.	50	50	50	250
Over 10,000 lbs.	75	75	75	250

 

   Note 1. Storage must be ten feet away from door opening.

   Note 2. The discharge from safety relief devices shall be located not less than three feet horizontally away from any building opening which is below the level of such discharge.

15-26-720 Underground storage tank installation.

   Underground tanks for liquefied petroleum gas shall be installed in accordance with Section 3126 of National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)

15-26-730 Filling density and procedure.

   The maximum amount of liquid used to fill the container shall be determined by the filling density as given in National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition. The actual filling operation shall be conducted outside and be located 25 feet from any structure.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)

15-26-740 Tank cars – Unloading procedure.

   Tank car unloading of liquefied petroleum gas shall comply with Sections 15-26-220 through 15-26-270 and 15-26-290 through 15-26-320 inclusive, with the following exceptions:

   1.   The piping system shall comply with Section 23 of National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition. The maximum pipe size used shall be four inches;

   2.   One shutoff valve shall be installed near the tank car and near the tank or building, and both shall be accessible;

   3.   A hydrostatic relief valve shall be provided in accordance with the requirements of Section 236 of National Fire Protection Association Pamphlet No. 58 entitled “Standard for the Storage and Handling of Liquefied Petroleum Gas”, 1973 Edition;

   4.   Lines for liquefied petroleum gas need not be installed in concrete trenches or steel conductor pipe;

   5.   Pressure in tank cars may be increased to allow transfer by use of a compressor or some other suitable means.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)

15-26-750 Tank trucks.

   Tank trucks transporting liquefied gas and their loading and unloading facilities shall comply with Sections 15-26-200 and 15-24-1000 to 15-24-1070 in addition to the following:

   1.   All valves and fittings shall be protected against damage due to collision;

   2.   Liquid discharge openings shall have a remote-controlled internal shutoff valve including thermal actuation unless the tank capacity is less than 3,500 gallons water capacity.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)

15-26-760 Repair, alteration or modification of LP containers – Procedure.

   It shall be unlawful to make any repair, alteration and/or modification to any pressurized part of any liquefied petroleum gas container without first emptying and purging such containers of all flammable gas and without first making a physical disconnection of all connecting piping, taking out sections thereof to make such disconnections. Before making such repairs, alterations and/or modifications, the contents of the container shall be tested and the analysis of the mixture of air or inert gases therein shall be recorded. After completion of the repairs, alterations and/or modifications, the department of steam boilers, unfired pressure vessels and cooling plants shall be notified to allow an inspection to be made prior to filling. At that time, written evidence shall be provided to show that all repairs, alterations and/or modifications comply with the code under which the container was originally built.

(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616)