§ 83.01.060  Fire Hazards.
   This Section establishes standards for storage of solid materials susceptible to fire hazards and flammable liquids and gases where allowed in compliance with Division 2 (Land Use Zoning Districts and Allowed Land Uses).
   (a)   Combustible Solids.  Land uses that include the storage of solid materials susceptible to fire hazards shall be subject to the following storage standards in the indicated land use zoning districts.
      (1)   Regional Industrial (IR) Land Use Zoning District.
         (A)   Inside Storage.  A structure utilized for the storage, manufacture, or use of flammable solid materials shall be located no less than 40 feet from any lot line and any other on-site structures or shall adhere to standards specified in Subdivision (2) below.
         (B)   Outdoor Storage.  Outdoor storage of flammable solid materials shall be no less than 50 feet from any lot line and any other on-site structures.
      (2)   All Other Manufacturing or Industrial Uses Legally Established Within Any Other Land Use Zoning District.  The storage, manufacture, or use of highly flammable solid materials shall take place in enclosed spaces having fire resistance of no less than two hours and protected with an automatic fire extinguishing system.
   (b)   Flammable Liquids and Gases.  Land uses that involve the storage of flammable liquids and gases shall be subject to the following standards when established within the land use zoning districts indicated.
      (1)   Setbacks.  County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials) shall establish setback requirements for flammable liquids and gases.
      (2)   Storage capacity.  The total storage capacity of flammable liquids and gases on a parcel shall not exceed the quantities indicated in Table 83-1 (Storage Standards for Flammable Liquids and Gases).
 
Table 83-1
Storage Standards for Flammable Liquids and Gases
Stored Substance
Land Use Zoning District
Maximum Capacity
SCF = Standard cubic feet at 60ºF and 29.92" Hg (i.e., mercury)
Liquids
Regional Industrial District (IR)
120,000 gallons
All other manufacturing or industrial uses legally established within any other land use zoning district
60,000 gallons
Liquefied Petroleum Gas (LPG)
All manufacturing or industrial uses established in any land zoning use district
Per County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials)
All commercial uses legally established in any land use zoning district
15,000 gal./tank
20,000 gallons maximum aggregate total
All agricultural uses legally established in any land use zoning district and aggregate total
15,000 gal./tank and aggregate total
Gases other than liquefied petroleum gas
Regional Industrial District (IR)
300,000 SCF above ground
600,000 SCF below ground
All other manufacturing or industrial uses legally established within any other land use zoning district
150,000 SCF above ground
300,000 SCF below ground
 
   (c)   Liquefied Petroleum Gas (LPG).
      (1)   General Requirements.
         (A)   Agricultural, Commercial, Industrial, or Manufacturing Uses and Land Use Zoning Districts. Liquefied petroleum gas (LPG) storage and distribution facilities for agricultural, commercial, industrial, or manufacturing uses shall be allowed subject to a Use Permit in compliance with Division 2 (Land Use Zoning Districts and Allowed Land Uses). The location, installation, operation, and maintenance of LPG storage and distribution facilities shall be subject to:
            (I)   The standards in this Subdivision.
            (II)   The conditions, requirements, and standards imposed by the Review Authority in compliance with this Chapter.
         (B)   Residential Uses and Land Use Zoning Districts. County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials) shall establish standards for residential uses and residential land use zoning districts for LPG storage.
         (C)   Conflict Between Land Use District and Use Permit Requirements. In the event of a conflict between the provisions of this § 83.01.060(c) (Liquefied Petroleum Gas [LPG]) and the provisions of a land use zoning district, including the requirement for Use Permit, the provisions of this Section shall prevail and control.
      (2)   Fire Protection Requirements for All Parcels.
         (A)   Setbacks for LPG storage and distribution facilities from structures and property lines shall be those specified by County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
         (B)   LPG storage tanks shall be centrally located on the parcel to the satisfaction of the Fire Department.
      (3)   Additional Fire Protection Requirements for Specific Types of Parcels.  For parcels that have no more than one occupied structure less than 5,000 square feet in size and where the water system provides substandard flows per International Standards Organization (ISO) standards for structure protection, additional fire protection requirements shall be as follows:
         (A)   Where Parcel Size Is Ten Acres or More. Fire flow shall be calculated for exposures only in compliance with County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
         (B)   Where Parcel Size Is at Least Five Acres but less than Ten Acres.
            (I)   A one hour approved protective coating shall be applied to the LPG storage tank.
            (II)   Fire flow shall be calculated for exposures only, in compliance with County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
         (C)   Where Parcel Size Is at Least Two and One-half Acres, but less than Five Acres.
            (I)   A two hour approved protective coating shall be applied to the tank.
            (II)   Fire flow shall be calculated for exposures only, in compliance with County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
      (4)   Additional Fire Protection Requirements for Any Parcel with Adequate Fire Flow Available per ISO Standards.
         (A)   Fire hydrant(s) shall serve the parcel in compliance with County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
         (B)   Fire flow shall provide for exposure protection (ISO Calculation) and LPG storage tank protection/suppression.
            (I)   Sprinklers shall use calculations, as adopted by County Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
            (II)   Hose lines shall use the formula: GPM = five times the square root of the tank capacity.
         (C)   Additional protection.
            (I)   Where the Fire Chief determines that water can be applied to the tank or exposures by the Fire Department in required amounts in eight minutes or less, no additional protection shall be required.
            (II)   Where the Fire Chief determines that water cannot be applied to the tank or exposures by the Fire Department in required amounts in eight minutes or less, one of the following protection measures shall be required:
               (i)   One hour approved protective coating shall be applied to the LPG storage tank; or
               (ii)   A fixed spray water system shall be installed as approved by the Fire Department.
      (5)   Additional fire protection requirements for any parcel not included in either Subdivisions (C)(III) or (C)(IV), above:
         (A)   Either a one-hour or more protective coating shall be applied to the LPG storage tank, as required by the Fire Department, or a fixed spray water system shall be installed instead of coating the tank.
         (B)   Fire flow shall be calculated for exposure only, in compliance with the San Bernardino Code Title 2, Division 3 (Fire Protection and Explosives and Hazardous Materials).
(Ord. 4011, passed - -2007)