SEC. 91.7106. TESTING, MAINTENANCE AND SERVICE OF GAS-DETECTION AND MECHANICAL VENTILATION SYSTEMS.

   (Amended by Ord. No. 185,587, Eff. 7/16/18.)

   The installation instructions for the gas detection and mechanical ventilation systems, which are required by LAMC Table 71, shall be approved and enforced by the Fire Department. All gas detection and mechanical ventilation systems shall be maintained and serviced in proper working condition and meet all requirements of the State of California and City Electrical and Mechanical Codes.

   A.   Fire Department. The Fire Department shall enforce the following:

   1.   The maintenance and service procedures for each gas detection and mechanical ventilation systems, which are required in LAMC Table 71, shall be performed by the building owner in accordance with the manufacturers written instructions.

   2.   The annual and maintenance testing shall be performed as set forth by the Fire Department in accordance with the Fire Prevention Bureau (F.P.B.) Requirement No. 71 and Fire Chief's Regulation 4, Section 4J.

   3.   The testing of the gas detection and mechanical ventilation systems shall be performed by a person with a valid Certificate of Fitness for Gas Detection Systems as set forth in LAMC Section 57.117.

   B.   Notification Placard. A permanent notification placard shall be posted and maintained at the front entrance of a building that is constructed with Impervious Membrane, except in residential buildings. The placard shall indicate the presence of the Impervious Membrane.

SEC. 91.7107. EMERGENCY PROCEDURES.

   With the exception of single-family dwellings, all buildings required by this division to have a gas detection system or sub-slab vent system shall, subject to Fire Department approval, have established emergency procedures that include, but are not limited to, the following: (Amended by Ord. No. 180,619, Eff. 5/12/09.)

   A.   Assignment of a responsible person as safety director to work with the Fire Department in the establishment, implementation and maintenance of an emergency plan.

   B.   Conspicuous posting of the Fire Department’s telephone number in areas designated by the Fire Department.

   C.   Conspicuous posting of emergency plan procedures approved by the Fire Department.

SEC. 91.7108. APPLICATION OF METHANE SEEPAGE REGULATIONS TO LOCATIONS OR AREAS OUTSIDE THE METHANE ZONE AND METHANE BUFFER ZONE BOUNDARIES.

   (Amended by Ord. No. 185,587, Eff. 7/16/18.)

   Upon a determination by the Department that a hazard may exist from methane intrusion at a geographical location or in an area outside the boundaries established in LAMC Section 91.7103, the Department and the Fire Department may enforce any or all of the requirements of Division 71, Article 1, Chapter IX of the LAMC as required to preclude potential fire or explosion from methane concentration.

SEC. 91.7109. ADDITIONAL REMEDIAL MEASURES.

91.7109.1. General Remedial Measures. In the event the concentration of methane gas in any building located in a Methane Zone or Methane Buffer Zone reaches or exceeds 25 percent of the minimum concentration of gas that will form an ignitable mixture with air at ambient temperature and pressure, the owner shall hire an engineer to investigate, recommend and implement mitigating measures. These measures shall be subject to approval of this Department and the Fire Department.

91.7109.2. Abandoned Oil Well. (Amended by Ord. No. 185,587, Eff. 7/16/18.) Any abandoned oil well encountered during construction shall be evaluated by the Fire Department and may be required to be re-abandoned in accordance with applicable rules and regulations of the Division of Oil, Gas and Geothermal Resources of the State of California. Buildings shall comply with these provisions and the requirements of LAMC Section 91.6105, whichever is more restrictive.

TABLE 71. MINIMUM METHANE MITIGATION REQUIREMENTS

(Amended by Ord. No. 185,587, Eff. 7/16/18.)

Site Design Level			LEVEL I		LEVEL II		LEVEL III		LEVEL IV		LEVEL V
Design Methane Concentration (ppmv)			0-100		101-1,000		1,001-5,000		5,001-12,500		>12,500
Design Methane Pressure (inches of water pressure)			2	>2	2	>2	2	>2	2	>2	All Pressures
P A S S I V E S Y S T E M	De-watering System 1		X	X	X	X	X	X	X	X	X
	Sub-Slab Vent System	Perforated Horizontal Pipes	X	X	X	X	X	X	X	X	X
		Gravel Blanket Thickness Under Impervious Membrane	2"	2"	2"	3"	2"	3"	2"	4"	4"
		Gravel Thickness Surrounding Perforated Horizontal Pipes	2"	2"	2"	3"	2"	3"	2"	4"	4"
		Vent Risers	X	X	X	X	X	X	X	X	X
	Impervious Membrane		X	X	X	X	X	X	X	X	X
A C T I V E S Y S T E M	Sub-Slab System	Mechanical Extraction System 2								X	X
	Lowest Occupied Space System	Gas Detection System 3		X		X	X	X	X	X	X
		Mechanical Ventilation 3, 4, 5		X		X	X	X	X	X	X
		Alarm System		X		X	X	X	X	X	X
	Control Panel			X		X	X	X	X	X	X
M I S C. S Y S T E M	Trench Dam		X	X	X	X	X	X	X	X	X
	Conduit or Cable Seal Fitting		X	X	X	X	X	X	X	X	X
	Additional Vent Risers 5										X

 

For SI: 1 inch = 25.4 mm.

X = Indicates a Required Mitigation Component

1.   See LAMC Subdivision 91.7104.3.7 for exception.

2.   The Mechanical Extraction System shall be capable of providing an equivalent of a complete change of air every 20 minutes of the total volume of the Gravel Blanket.

3.   The mechanical ventilation systems shall be capable of providing an equivalent of one complete change of the lowest occupied space air every 15 minutes.

4.   Vent opening complying with LAMC Subdivision 91.7104.3.4 may be used in lieu of mechanical ventilation.

5.   The total quantity of installed vent risers shall be increased to double the rate for passive system.

DIVISION 72 FIRE DISTRICT REGULATIONS

(Division 72 Added by Ord. No. 170,953, Eff. 3/17/96, Oper. 1/1/96.)

Section

91.7200   Purpose.

91.7201   General.

91.7202   Additions to Buildings.

91.7203   General Requirements.

91.7204   Special Requirements for Fire District Number 1.

91.7205   Provisional Structures.

91.7207   Special Requirements for the Very High Fire Hazard Severity Zone.

91.7208   Prohibited Vehicles.

SEC. 91.7200. PURPOSE.

   (Amended by Ord. No. 182,850, Eff. 1/3/14.)

   These Fire District Regulations were formerly found in Division 61.

SEC. 91.7201. GENERAL.

91.7201.1 Fire District No. 1 Boundaries. Fire District No. 1 shall include:

   I.   Downtown. All of the territory bounded by the following streets or freeways:

   1.   Harbor Freeway from the Santa Monica Freeway to the Santa Ana Freeway;

   2.   Santa Ana Freeway from the Harbor Freeway to Alameda Street;

   3.   Alameda Street from the Santa Ana Freeway to Fourth Street;

   4.   Fourth Street from Alameda Street to Central Avenue;

   5.   Central Avenue from Fourth Street to the Santa Monica Freeway; and

   6.   Santa Monica Freeway from Central Avenue to the Harbor Freeway.

   II.   Hollywood. All of the territory bounded by the following streets:

   1.   Yucca Street from Highland Avenue to Gower Street;

   2.   Gower Street from Yucca Street to De Longpre Avenue;

   3.   De Longpre Avenue from Gower Street to Vine Street;

   4.   Vine Street from De Longpre Avenue to Fountain Avenue;

   5.   Fountain Avenue from Vine Street to Wilcox Avenue;

   6.   Wilcox Avenue from Fountain Avenue to Sunset Boulevard;

   7.   Sunset Boulevard from Wilcox Avenue to Highland Avenue;

   8.   Highland Avenue from Sunset Boulevard to Hollywood Boulevard;

   9.   Hollywood Boulevard from Highland Avenue to Orchid Avenue;

   10.   Orchid Avenue from Hollywood Boulevard to Franklin Avenue;

   11.   Franklin Avenue from Orchid Avenue to Highland Avenue;

   12.   Highland Avenue from Franklin Avenue to Yucca Street;

   13.   All of the territory within 100 feet of Hollywood Boulevard between Hillhurst Avenue and La Brea Avenue; and,

   14.   All of the territory within 100 feet of Sunset Boulevard between Hillhurst Avenue and the city boundary line 190 feet west of Havenhurst Drive.

   III. Wilshire. All of the territory bounded by the following streets:

   1.   Sixth Street from Western Avenue to Commonwealth Avenue;

   2.   Commonwealth Avenue from Sixth Street to Wilshire Boulevard;

   3.   Wilshire Boulevard from Commonwealth Avenue to Catalina Street;

   4.   Catalina Street from Wilshire Boulevard to Eighth Street;

   5.   Eighth Street from Catalina Street to Mariposa Avenue;

   6.   Mariposa Avenue from Eighth Street to Seventh Street;

   7.   Seventh Street from Mariposa Avenue to Ardmore Avenue;

   8.   Ardmore Avenue from Seventh Street to Wilshire Boulevard;

   9.   Wilshire Boulevard from Ardmore Avenue to Western Avenue;

   10.   Western Avenue from Wilshire Boulevard to Sixth Street; and

   11.   All of the territory within 100 feet of Wilshire Boulevard between the eastern city boundaries of the City of Beverly Hills and the Harbor Freeway, with the exception of the territory within 100 feet of Wilshire Boulevard located between Wilton Place and Highland Avenue.

   IV.   Beverly Fairfax. All of the territory bounded by the following streets:

   1.   Beverly Boulevard from Fairfax Avenue to a point 120 feet west of Gardner Avenue;

   2.   A line 120 feet west of and parallel to Gardner Avenue from Beverly Boulevard to Third Street;

   3.   Third Street from a point 120 feet west of Gardner Avenue to Fairfax Avenue; and

   4.   Fairfax Avenue from Third Street to Beverly Boulevard.

   V.   Crenshaw. All of the territory bounded by the following streets:

   1.   Crenshaw Boulevard from Thirty-ninth Street to Stocker Street;

   2.   Stocker Street from Crenshaw Boulevard to Rosalia Drive;

   3.   Rosalia Drive from Stocker Street to Marlton Avenue;

   4.   Marlton Avenue from Rosalia Drive to Thirty-ninth Street; and

   5.   Thirty-ninth Street from Marlton Avenue to Crenshaw Boulevard.

   VI.   Century City. All of the territory bounded by the following streets:

   1.   Santa Monica Boulevard between Century Park West and the westerly city boundary of the City of Beverly Hills;

   2.   The westerly city boundary of the City of Beverly Hills from Santa Monica Boulevard to Olympic Boulevard;

   3.   Olympic Boulevard from the westerly city boundary of the City of Beverly Hills to Century Park West; and

   4.   Century Park West from Olympic Boulevard to Santa Monica Boulevard.

   Excepting that portion of the above-described territory described as follows:

   Beginning at the point of intersection of the center line of Olympic Boulevard and Century Park West, thence northwesterly along center line of Century Park West 791 feet, thence N50 o 29'00" E822.21 feet, thence S39 o 29'13" E9.63 feet, thence S84 o 29'13" E29.59 feet, thence N50 o 30'47" E19.00 feet, thence S39 o 29'13" E295.17 feet, thence S35 38'00" E to the center line of Olympic Boulevard thence southwesterly along said center line to the point of beginning.

   VII. Westwood. All of the territory bounded by the following streets:

   1.   Le Conte Avenue from Levering Avenue to Tiverton Avenue;

   2.   Tiverton Avenue from Le Conte Avenue to the intersection of Lindbrook Drive and Glendon Avenue;

   3.   Glendon Avenue from the intersection of Lindbrook Drive and Tiverton Avenue to Wilshire Boulevard;

   4.   Wilshire Boulevard from Glendon Avenue to Gayley Avenue;

   5.   Gayley Avenue from Wilshire Boulevard to the alley 200 feet north of Wilshire Boulevard;

   6.   The alley directly west of Gayley Avenue from a point 200 feet north of Wilshire Boulevard and Weyburn Avenue;

   7.   Weyburn Avenue from the alley west of Gayley Avenue to Gayley Avenue;

   8.   Gayley Avenue from Weyburn Avenue to Levering Avenue;

   9.   Levering Avenue from Gayley Avenue to Le Conte Avenue; and

   10.   All of the territory within 100 feet of Wilshire Boulevard between Veteran Avenue and the westerly city limits of the City of Beverly Hills; and

   11.   All of the territory within 100 feet of Wilshire Boulevard between Centinela Avenue and Federal Avenue.

   VIII. Van Nuys. All of the territory bounded by the following streets:

   1.   Vesper Avenue from Calvert Street to Victory Boulevard;

   2.   Victory Boulevard from Vesper Avenue to Sylmar Avenue;

   3.   Sylmar Avenue from Victory Boulevard to Calvert Street;

   4.   Calvert Street from Sylmar Avenue to Vesper Avenue; and

   5.   All of the territory within 100 feet of Van Nuys Boulevard between Victory Boulevard and Sherman Way.

   IX.   Venice. All of the territory bounded by the following streets:

   1.   Horizon Avenue from Ocean Front Walk to Pacific Avenue;

   2.   Pacific Avenue from Horizon Avenue to Eighteenth Avenue;

   3.   Eighteenth Avenue from Pacific Avenue to Ocean Front Walk; and

   4.   Ocean Front Walk from Eighteenth Avenue to Horizon Avenue.

   X.   San Pedro. All of the territory bounded by the following streets:

   1.   Fourth Street from Pacific Avenue to Harbor Boulevard;

   2.   Harbor Boulevard from Fourth Street to Seventh Street;

   3.   Seventh Street from Harbor Boulevard to Beacon Street;

   4.   Beacon Street from Seventh Street to Eighth Street;

   5.   Eighth Street from Beacon Street to Pacific Avenue; and

   6.   Pacific Avenue from Eighth Street to Fourth Street.

   Excepting that portion of the above-described territory described as follows:

   Beginning at the point of intersection of the easterly line of Mesa Street and the southerly line of Fourth Street; thence southerly along said easterly line of Mesa Street to the northerly line of the alley running parallel to said Fourth Street and distant 155 feet southerly of the center line of said Fourth Street; thence along the northerly line of said alley to a point 498 feet from the easterly line of said Mesa Street; thence south 10 feet and thence easterly to the westerly line of Centre Street; thence northerly along said westerly line to the southerly line of said Fourth Street; thence westerly along said southerly line to the point of beginning.

91.7201.2. Very High Fire Hazard Severity Zone. (Amended by Ord. No. 185,587, Eff. 7/16/18.) The Very High Fire Hazard Severity Zone shall be considered a Fire District. The Very High Fire Hazard Severity Zone shall be all of the territory so designated by the boundaries shown on the Very High Fire Hazard Severity Zone Map as established in LAMC Sections 57.4908 et seq. and adopted by the City Council.

91.7201.3. Buildings Overlapping Fire District Boundaries. (Renumbered and Amended by Ord. No. 179,324, Eff. 12/10/07, Oper. 1/1/08.) Every building or structure having any part of the building within a fire district shall be deemed to be entirely in that fire district.

   A building or structure located partly within two or more fire districts shall comply throughout with the more restrictive provisions of each fire district.