HomeMy WebLinkAboutOrdinance 2475 N.C.S. 11/18/2013 EFFECTIVE DATE ORDINANCE NO. 2475 N.C.S.
OF ORDINANCE
December 19, 2013
1 Introduced by Seconded by
2
3 •
4 Mike Healy Gabe Kearney
5
6
7
8 AN ORDINANCE OF THE COUNCIL OF THE CITY OF PETALUMA ADOPTING BY REFERENCE
9 THE 2013 EDITION OF THE CALIFORNIA BUILDING STANDARDS CODE, INCLUDING: PART 1,
10 2013 CALIFORNIA ADMINISTRATIVE CODE; PART 2, 2013 CALIFORNIA BUILDING CODE;
11 PART 2.5 CALIFORNIA RESIDENTIAL CODE; PART 3, 2013 CALIFORNIA ELECTRICAL CODE;'
12 PART 4 2013 CALIFORNIA MECHANICAL CODE; PART 5 2013 CALIFORNIA PLUMBING
13 CODE; PART 6, CALIFORNIA ENERGY CODE; PART 8, 2013 CALIFORNIA HISTORICAL
14 BUILDING CODE; PART 10, 2013 CALIFORNIA EXISTING BUILDING CODE; PART 11 2013
15 CALIFORNIA GREEN BUILDING STANDARDS CODE; AND PART 12, 2013 CALIFORNIA
16 REFERENCED STANDARDS CODE, AND LOCAL AMENDMENTS TO SPECIFIED PROVISIONS OF
17 THE CALIFORNIA BUILDING STANDARDS CODE
18
19 BE IT ORDAINED BY THE COUNCIL OF THE CITY OF PETALUMA AS FOLLOWS:
20
21 SECTION 1: REPEALED. Section 17.04.010 entitled "Adoption of Uniform Codes" and
22 Section 17.04.020 entitled "Amendments Made in California Building Code" of the Petaluma
23 Municipal Code are-hereby repealed in their entireties.
24
25 SECTION 2: FINDINGS. The City Council of the City of Petaluma finds that in order to best
26 protect the health, safety and welfare of the citizens of the City of Petaluma, the standards of
27 building within the City must conform with state law except where local climatic, geological,
28 and topographic conditions warrant more restrictive regulations. These considerations support
29 adoption of the state building codes contained in California Building Standards Code, Title 24,
30 and other uniform codes governing the construction and regulation of buildings and structures
31 with the modifications and amendments contained herein.
32
33 Pursuant to California Health and Safety Code Section 17958.7, the City Council makes the
34 factual findings set forth in "Exhibit A" attached hereto and incorporated herein by reference,
35 and finds that the amendments made in this ordinance to the California Building Standards
36 Code Title 24, Parts 1, 2, 2.5, 3, 4, 5, 6, 8, 10, II, and 12, are reasonably necessary because of the
37 local climatic, geological or topographical conditions described in Exhibit.A.
38
39 SECTION 3: CURRENT BUILDING CODES ADOPTED.
40
41 Section 17.04.010 entitled "Adoption of Uniform Codes" and Section 17.04.020 entitled
42 "Amendments made in California Building Code" are hereby added to the Petaluma
Ordinance No. 2475 N.C.S. Page 1
1 Municipal Code to read as follows:
3 17.04.010 - Adoption of Uniform Codes. Pursuant to Section 50022.2 of the California
4 Government Code, the following codes are adopted by reference, including the
5 amendments listed in this chapter, which are made pursuant to the findings of fact set
6 forth in Exhibit A of the adopting ordinance.
7
8 A. Part 1-2013 California Administrative Code;
9
10 B. Part 2-2013 California Building Code based on the 2012 International Building
11 Code, including Chapters 31B (Public Swimming Pools) and 33 (Safeguards During
12 Construction) in their entirety, except as amended in Section 17.04.020;
13
14 C. Part 2.5—California Residential Code based on the 2012 International Residential
15 Code including Appendix Chapters G (Swimming Pools and Hot Tubs) and K
16 (Sound Transmission) in their entirety, except as amended in Section 17.04.020;
17
18 D. Part 3-2013 California Electrical Code based on the 2011 National Electrical
19 Code;
20
21 E. Part 4-2013 California Mechanical Code based on the 2012 Uniform Mechanical
22 Code including Sections 101 .0 through 118.1 of Chapter 1 inclusively
23 (Administration);
24
25 F. Part 5-2013 California Plumbing Code based on the .2012 Uniform Plumbing
26 Code including Sections 101.1 through 103.1 of Chapter 1 inclusively
27 (Administration);
28
29 G. Part 6-20.13 California Energy Code;
30
31 H. Part 8-2013 California Historical Building Code;
32
33 I. Part 10-2013 California Existing Building Code based on the 2009 International
34 Existing Building Code;
35
36 J. Part 11-2013 California Green Building Standards Code at the Mandatory Level
37 for all Additions and Alterations, and at the Tier one level for all Wholly New
38 Construction, with the exception of Appendix A4, Division A4.2 Energy Efficiency
.39 and Appendix A5, Division A5.2 Energy Efficiency, neither of which are adopted;
40
41 K. Part 12-2013 California Referenced Standards Code.
42
43 However, all fee amounts in the codes adopted by reference are hereby deleted. Fees
44 applicable in the city for inspections, permit issuance and any and all other services
45 related to the codes adopted by reference will be fixed by fee schedules set by the city
46 council by duly adopted resolution.
47
48 17.04.020 - Amendments Made in California Building Code. Part 2 of the 2013 California
49 Building Standards Code, California Building Code, as adopted in section 1.7.04.010, is
50 hereby amended to include the following additions, amendments and deletions:
51
Ordinance No. 2475 N.C.S. Page 2
Section 105.2 (11 is hereby amended to read as follows:
3 105.2 (1) - One-Story Detached Accessory Structures Used as Tool and Storage Sheds,
4 Playhouses and Similar Uses. Provided the floor area is not greater than one hundred
5 twenty square feet (120' sq.) (11 m2), there are no wall finishes such as, but not limited to,
6 gypsum wallboard, plaster, stucco, or paneling placed on any interior surface of any wall
7 and/or partition, and no electrical, mechanical or plumbing systems are contained
8 within the structure.
9
10 Section 115 is hereby amended to read as follows:
11
12 115 - Stop Work Orders
13
14 115.1 - Authority. Whenever the building official finds any work regulated by this code
15 being performed in a manner that is contrary to the provisions of this cede, without a
16 permit, beyond the scope of the issued permit, in violation of the Petaluma Municipal
17 Code or Zoning Ordinance, or dangerous or unsafe, the building official is authorized to
18 issue a stop work order.
19
20 115.2 - Issuance. The stop work order shall be'in writing and shall be posted in a visible
21 location near the location where the work is being conducted. If the owner or owner's
22 agent is not on site at the time of posting, a notice advising the reasons for the stop work
23 order issuance shall be hand delivered or mailed first-class to the owner of the property
24 involved, or to the owner's agent, or to the person doing the work. Upon issuance of a
25 stop work order, the cited work shall immediately cease. The stop work order shall state
26 the reason for the order, the conditions under which the cited work will be permitted to
27 resume, and the name and contact information of the official or agency issuing the
28 order.
29
30 115.3 - Unlawful Continuance. Any person who continues to engage in any work after
31 having been served with a stop work order, except such work as that person is directed
32 to perform to remove a violation or unsafe condition, shall be guilty of a misdemeanor.
33
34 115.4 - Removal of Posted Stop Work Order. Any person who removes a posted stop work
35 order without written consent of the Building Official shall be guilty of a misdemeanor.
36
37 115.5 - Response Required. Violators receiving a stop work order are required to respond
38 to the Building Division within two (2) business days of the issued notice to receive
39 instructions on how to rescind the order.
40
41 115.6 - Permit Application Required. A building permit application with construction or
42 demolition plans and supporting (structural calculations, energy calculations, accessible
43 access) documents must be submitted for approval within fifteen (15) working days
44 following response to the Building Division. Plans will be reviewed and correction letters
45 issued or permit application approved within fifteen (15) working days of receipt by the
46 Building Division. A response to any correction letter must be submitted within fifteen ('15)
47 working days of the date of the correction letter. Five working days will be required to
48 review this second submission and a permit approved for issuance. Permits ready for
49 issuance must be issued within 5 working days thereafter. All construction must be
50 inspected as work progresses and signed off by all (affected) departments within 60 days
51 of building permit issuance.
52
Ordinance No. 2475 N.C.S. Page 3
1 115.7 - Stop Work Order Penalty. The Building Official may impose Stop Work Order
2 Penalties in accordance with Section 1.14.050 of this code and/or other applicable law.
3
4 CHAPTER 7- FIRE RESISTANCE-RATED CONSTRUCTION
5
6 Section 722 is added to read as follows:
7
8 722 - Repair of Breaches of Non-Rated Walls/Ceilings in Fire Zone 1. Breaches, openings,
9 holes or other broken wall and ceiling areas in buildings in Fire Zone 1 (generally defined
10 as the Downtown Business District) as defined in Section 17.22 of the Petaluma Municipal
11 Code shall be repaired, restored or replaced when damaged, altered, breached,
12 penetrated, removed or improperly installed. Openings/breaches can be repaired with
13 like material such as lath and plaster, sheetrock, plywood or other reasonable barrier. The
14 intent of this Section is to close openings/breaches to limit the spread of fire and
15 products of combustion in the downtown business district buildings.
16
17 CHAPTER 9- FIRE PROTECTION SYSTEMS
18
19 Section 901.2.1 is added to read as follows:
20
21 901.2.1 - Problematic and Unreliable Fire Alarms. The Fire Chief may determine a fire
22 alarm to be unreliable upon receipt of more than three (3) false alarms within a twelve-
23 month period. Upon making such a finding, the Fire Chief may order the following:
24
25 (a) For any nuisance alarm where the system is not restored, the Fire Chief may
26 require the system owner to provide standby personnel or take such other measures as
27 the Fire Chief deems appropriate. Such measures shall remain in place until a fire
28 department approved fire alarm maintenance firm certifies in writing to the Fire Chief
29 that the alarm system has been restored to a reliable condition. The Fire Chief may
30 require such tests as he/she deems necessary to demonstrate the adequacy of the
31 system.
32
33 (b) Require the owner to pay mitigation fees pursuant to the City of Petaluma fee
34 schedule.
35
36 Section 9. 03.2 is amended to read as follows:
37
38 903.2 - Where Required. Approved automatic sprinkler systems in new buildings and
39 structures shall be provided in locations described in this section. Additional local
40 requirements are described in Sections 903.2.1 through 903.2.19.1.2 and may supersede
41 the following requirements. The most restrictive requirement shall apply.
42
43 Section 903.2.20 is added to read as follows:
44
45 903.2.20 - Local Fire Sprinkler System Requirements.
46
47 Section 903.2.20.1 is added to read as follows:
48
49 903.2.20.1 - System Requirements. An approved automatic fire sprinkler system shall be
50 installed and maintained in all newly constructed buildings.
51
52 Exceptions:
Ordinance No. 2475 N.C.S. Page 4
1
2 1. Detached Group U occupancies one thousand square feet (1,000' sq.) or
3 less agricultural buildings and private riding arenas as approved by the Fire or
4 Building Code Official.
5
6 2. Detached pool houses up to one thousand square feet (1,000' sq.) in floor
7 area within fifty feet (50') of the pool and limited to a single bathroom.
8
9 3. Detached non-combustible motor vehicle fuel dispensing canopies
10 classified as Group M occupancy.
11
12 4. A room above a detached garage used for storage only that does not
1 3 contain a bathroom, cooking or refrigeration facilities.
14
15 5. Detached carports of noncombustible construction with non-habitable
16 spaces above.
17
18 6. Detached Group B or M occupancies five hundred square feet (500' sq.)
19 or less.
20
21 Section 903.2.20.2 is added to read as follows:
22
23 903.2.20.2 - Additions-Residential. Additions to existing residential buildings that increase
24 the total square footage of existing floor area by fifty percent (50%) or greater shall meet
25 the requirements for a newly constructed building. This requirement applies to the
26 cumulative effect On square footage of 50% or greater as a result of additions taking
27 place over a five year period involving one or more building permits. All additions to
28 residential buildings with an existing approved automatic sprinkler system shall be
29 required to extend the sprinkler system into the addition.
30
31 Section 903.2.20.3 is added to read as follows:
32
33 903.2.20.3 - Remodels, Repairs and/or Alterations. Residential remodels, repairs and/or
34 alterations, individually or any combination thereof, involving fifty percent (50%) or
35 greater of square footage of the existing floor area shall meet the requirements for a
36 newly constructed building. This requirement applies to the cumulative effect on square
37 footage of fifty percent (50%) or greater as a result of remodels, repairs and/or alterations
38 taking place over a five year period involving one or more building permits.
39
40 Section 903.2.20.5 is added to read:
41
42 903.2.20.5 - Additions-Commercial and Multi-Family Additions. Additions to existing
43 commercial buildings that increase the total square footage of existing floor area by
44 twenty-five percent (25%) or greater shall meet the requirements for a newly constructed
45 building. All additions to commercial buildings with an existing approved automatic
46 sprinkler system shall be required to extend the sprinklers into the addition.
47
48 Section 903.2.20.6 is added to read as follows:
49
50 903.2.20.6 - Remodels, Alterations or Repairs-Commercial. For remodels, alterations
51 and/or repairs to existing buildings) involving demolition, removal or repair of fifty
Ordinance No. 2475 N.C.S. Page 5
1 percent (50%) or greater of the structure, the building shall meet the automatic tire
2 sprinkler requirements for a newly constructed building.
3 Exceptions: Alterations or additions made solely for the purpose of complying with the
4 American's with Disabilities Act.
5
6 Section 903.2.20.7 is added to read:
7
8 903.2.20.7 - Changes of Occupancy. When any change of occupancy occurs where the
9 proposed new occupancy classification is more hazardous based on fire and life safety
10 risks as determined by the Fire Code Official including, but not limited to, the conversion
11 of residential buildings to condominiums, the building shall meet the fire sprinkler
12 requirements for a newly constructed building.
13
14 Section 903.2.20.8 is added to read:
15
16 903.2.20.8 - Residential Conversions. Fire sprinkler systems shall be installed in all single-
17 family dwellings that are converted to duplexes and/or multi-family dwellings, bed and
18 breakfasts, inns, lodging houses or similar uses. Fire sprinkler systems shall be installed in all
19 conversions of a detached garage into living space or sleeping space.
20 Section 903.2.20.9 is added to read as follows:
21
22 903.2.20.9 - Elevation of Existing Buildings. An automatic fire extinguishing system shall be
23 installed throughout all existing buildings when the building is elevated to three (3) or
24 more stories or more than thirty-five feet (35') in height, from grade to the exposed roof.
25
26 Exceptions: An automatic fire-extinguishing system need not be provided when the area
27 above thirty-five feet (35') is provided for aesthetic purposes only and is a non-habitable
28 space.
29
30 Section 903.2.20.10 is added to read:
31
32 903.2.20.10 - Installation of Automatic Fire Sprinklers in Pre-Existing Buildings (Historic
33 Downtown Business District).
34
35 (a) Geographic Boundary-Historic Downtown Business District: For the
36 purposes of this section, the Historic Downtown Business District shall include all
37 buildings located inside the geographic area generally formed by Kentucky
38 Street to the west, Washington Street to the north, the Petaluma River to the
39 east and B Street to the south. Also included in this section is 201 Washington
40 Street (Phoenix Theater) and 132 Keller Street (formerly Tuttle Drug), as more
41 particularly described in Figure 1003.2,12.
Ordinance No. 2475 N.C.S. Page 6
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Figure 1 00].2.12
2 (b) Installation Requirements: An automatic sprinkler system conforming to
3 the Standard for the Installation of Sprinkler Systems (NFPA-13) shall be installed
4 in all existing buildings in the Historic Downtown Business District in accordance
5 with the following criteria:
6
7 (1) Kentucky Street and Western Avenue:
8
9 a. In any building wherein a change of occupancy occurs.
10
11 b. In any building or occupancy where the square footage of
12 the building or occupancy is increased or alterations to the
13 structure are made pursuant to Section 903.2.19.3, Section
14 903:2.19.4, Section 903.2.19.5, Section 903.2.19.6, Section
15 903.2.19.7 and Section 903.2.19.8 of this Ordinance.
16
17 c. All buildings with basements or space below street grade
18 used for storage, business or public use shall have automatic
19 fire sprinklers installed within the basements or the below
20 street grade areas no later than December 31, 2010.
21
22 d. All buildings not meeting the criteria of (a) or (b) above shall
23 have automatic fire sprinklers installed throughout the
24 structure, including all public, private, storage and/or
25 concealed spaces, as defined by the Standard for the
26 Installation of Sprinkler Systems (NFPA-13) by no later than
27 December 31, 2016.
28
29 (2) Petaluma Boulevard North: Automatic fire sprinkler requirements
30 shall not become effective until the City of Petaluma installs an
31 appropriate sized water main and laterals to the curb lines similar to the
32 main previously installed on Kentucky Street and Western Avenue. Upon
33 notice by the City of such installation, an automatic sprinkler system
Ordinance No. 2475 N.C.S. Page 7
1 conforming to the Standard for the Installation of Sprinkler Systems
2 (NFPA-13) shall be installed according to the following criteria:
3
4 a. In any building wherein a change of occupancy occurs.
5
6 b. In any building or occupancy where the square footage of
7 the building or occupancy is increased or alternations to the
8 structure are made pursuant to Section 903.2.19.3, Secfion
9 903.2.19.4, Section 903.2.19.5, Secfion 903.2.19.6, Section
10 903.2.19.7 and Section 903.2.19.8 of this Ordinance.
1
13 c. All buildings with basements or space below street grade
13 used for storage, business or public use shall have automatic
14 fire sprinklers installed within the basements or the below
15 street grade areas, no later than December 31 of the year
16 that is six (6) years from the date of the water main
17 installation.
18
19 d. All buildings not meeting the criteria of (a) or (b) above shall
20 have automatic fire sprinklers installed throughout the
21 structure, including all public, private, storage and/or
22 concealed spaces, as defined by the Standard for the
23 Installation of Sprinklers (NFPA-13), no later than December
24 31 of the year that is twelve (12) years from the date of the
25 water main installation.
26
27 (3) Property Owner's Responsibility for System Installation:
28
29 a. The Property Owner shall be responsible for installation of the
30 lateral service from the curb line into the building. This also
31 includes isolation, check or other valves or devices, as
32 applicable.
33
34 b. The Property Owner shall be responsible for the installation of
35 the automatic fire sprinkler system according to the Standard
36 for the Installation of Sprinkler Systems (NFPA-13).
37
38 (4) Plans and Specifications: Plans and Calculations (NFPA-13, Chapter
39 8) for the service lateral and fire sprinkler system shall be submitted
40 to and approved by the Fire Prevention Bureau prior to installation of
41 equipment and materials.
42
43 a. For the Kentucky Street installations that are required on or
44 before December 31, 2010 or December 31, 2016, all Plans
45 and Calculations for service lateral and sprinkler systems shall
46 be submitted no later than June 30, 2010 or June 30, 20]6
47 respectively, with installation and approval of work to occur
48 prior to 'December 31, 2010 or December 31, 2016
49 respectively.
50
51 b. For Petaluma Boulevard North installations that occur in the
52 last year of the six (6) or twelve (12) year deadline (when
Ordinance No. 2475 N.C.S. Page 8
1 established) after the installation of the water main by the
2 City of Petaluma, Plans and Calculations shall be submitted
3 in that last year no later than June 30 of that year, with
4 installation and approval of work to occur prior to December
5 31 of that last year.
6
7 Section 903.3 is amended as follows:
8
9 903.3 - Installation Requirements. Sprinkler systems shall be designed and installed in
10 accordance with NFPA-13, NFPA-13R (if approved by the Fire Code Official) and NFPA-
11 13D. Pursuant to Section 102.7.1 and Section 105.1.4, the Are Code Official may require
12 additional sprinkler coverage to mitigate certain conditions such as access or water
13 supply issues.
14
15 Section 903.3.1 is amended to read:
16
17 903.3.1 - Design Criteria. Fire sprinkler systems installed in buildings of undetermined use
18 shall be designed and installed to have a design density of .33 gallons per minute per
19 square foot over a minimum design area of three thousand square feet (3,000' sq.).
20 Where a subsequent occupancy change requires a system with greater capacity, it shall
21 be the building owners' responsibility to upgrade the system to the required density and
22 meet any additional requirements of the Fire Code at the time of such change.
23
24 Section 903.3.7 is amended to read as follows:
25
26 903.3.7 - Fire Department Connections. The location of fire department connections
27 (FDC's) shall be within fifty feet (50') of a fire hydrant or as approved by the Fire Code
28 Official. Approved locking caps shall be provided on all newly installed FDC's and on
29 any existing FDC's found to be vandalized.
30
31 Section 903.4 is amended to read as follows:
32 903.4 - Sprinkler System Monitoring and Alarms. Except for Group R, Division 3
33 Occupancies, all valves controlling the water supply for automatic sprinkler systems,
34 pumps, tanks, water levels, temperatures, critical air pressure and water flow switches
35 shall be electronically supervised. Valves when used for standpipes are excluded from
36 this provision unless required by the Fire Code Official.
37 Section 903.4.2 is amended to read as follows:
38
39 903.4.2 - Alarms. One (1) exterior approved audible and visual device shall be
40 connected to every automatic fire sprinkler system in an approved location. Such
41 sprinkler water flow alarm devices shall be activated by water flow equivalent to the flow
42 of a single sprinkler of the smallest orifice size installed in the system. Where a building fire
43 alarm system is installed, actuation of the automatic fire sprinkler system shall actuate the
44 building fire alarm system.
45
46 Every new commercial fire alarm system installed as a sprinkler system monitoring alarm,
47 including those systems activated solely by fire sprinklers, shall also function for the
48 purpose of occupant notification, so that occupants of the building shall be notified
49 audibly and visually within each major suite or tenant space. A minimum of one (1)
50 notification device shall be located in each major suite in a normally occupied location
51 as determined by the Fire Code Official or building division.
52
Ordinance No. 2475 N.C.S. Page 9
1 Section 905.3.1 is amended to read as follows:
2
3 905.3.1 - Building Height. Class I standpipes shall be installed in buildings three stories or
4 over in height and/or if, in the opinion of the Fire Chief, a hazard or condition exists in
5 which the installation of standpipes would improve firefighting operations. Standpipes will
6 be provided with approved outlets provided on each floor level, including the roof when
7 roof access is provided.
8
9 Section 905.9 exception 2 is deleted.
10
11 Section 907.10 is added to read as follows:
12
13 907.10 - False Fire Alarms. Owners of properties with a fire alarm system shall maintain the
14 system in accordance with section 907.8. False alarm fees shall be assessed per the
15 current adopted city fee schedule.
16
17 Section 1907.2 is hereby added to read as follows:
18
19 1907.2 - Prohibited Concrete Reinforcement Materials. Welded Wire Fabric of any size or
20 gauge shall not be used as concrete reinforcement of any concrete slab or flat work
21 including, but not limited to, flooring, sidewalks, patios, driveways, foundation slabs,
22 equipment slabs, and roadways.
23
24 APPENDIX- Chapter J is hereby modified by deleting J103.2 Exception 1.
25
26 Section 3109 is hereby modified to read as follows:
27
28 3109.4 - Residential Swimming Pools. Exception is deleted.
29
30 Section 3109.4.1 is hereby modified in part to read:
31
32 3109.4.1 Barrier Height and Clearances. The top of the barrier shall not be less than 72
33 inches (1829 mm) above grade measured on the side of the barrier that faces away from
34 the swimming pool.
35
36 SECTION 2.5: The California Residential Code, as adopted in section 17.04.010, is hereby
37 amended to include the following additions, amendments and deletions:
38
39 Section AG105.2 (11 is modified in part to read:
40
41 (1) The top of the barrier shall not be less than 72 inches (1829 mm) above grade
42 measured on the side of the barrier that faces away from the swimming pool.
43
44 SECTION 4. SEVERABILITY
45
46 If any part of this ordinance is for any reason held to be unconstitutional, unlawful or
47 otherwise invalid by a court of competent jurisdiction, such decision will not affect the
48 validity of the remaining parts of this ordinance. The City Council of the City of Petaluma
49 hereby declares that it would have adopted this ordinance and each of its provisions
50 irrespective of any part being held invalid.
51
52
Ordinance No. 2475 N.C.S. Page 10
1 SECTION 5. CEQA NOT APPLICABLE
2
3 The City Council finds that this ordinance is not subject to the California Environmental
4 Quality Act ("CEQA") pursuant to section 15050(c)(2) of the CEQA Guidelines, because
5 the activity has no potential for resulting in a direct or reasonably foreseeable indirect
6 physical change in the environment, and pursuant to section 15060(c)(3)of the CEQA
7 Guidelines, because the activity is not a project as defined in Section 15378 of the CEQA
8 guidelines.
9
10 SECTION 6. EFFECTIVE AND OPERATIVE DATES
11
12 This ordinance will become effective thirty days after the date of its adoption by the
13 Petaluma City Council; however, the provisions of this ordinance will not become
14 operative until January 1, 2014, at the same time the 2013 edition of the California
15 Building Standards Code takes effect.
16
17 SECTION 7. FILING
18
19 In accordance with California Health and Safety Code Section 17958.7, the City Clerk is
20 hereby directed to file a copy of this ordinance and the attached findings of fact with
21 the California Building Standards Commission prior to the effective date of this ordinance
22 specified above.
23
24 SECTION 8. POSTING/PUBLICATION
25
26 The City Clerk is hereby directed to post and/or publish this ordinance or a synopsis for
27 the period and in the manner required by City Charter.
28
29
30
31 INTRODUCED and ordered posted/published this 210 day of October, 2013.
32
33 ADOPTED this 18th day of November, 2013 by the following vote:
34
35 Ayes: Vice Mayor Albertson, Healy, Kearney, Miller
36 Noes: Barrett, Mayor Glass
37 Abstain: None
38 Absent: Harris
39
40
41
42 d 4
43 David Glass, Mayor
44
45
46 ATTEST: APPROVED AS TO FORM:
47
48
49 7
50 e I �_
51
52 Claire Cooper, City Clerk \ Eric Danly, City Attorn
Ordinance No. 2475 N.C.S. Page 11
1
2 EXHIBIT"A"
3
4 CLIMACTIC
5
6 Precipitation: Precipitation ranges from twenty inches (20") to approximately twenty-five inches
7 (25") per year. Approximately ninety percent (90%) falls during the months of November through
8 April, and ten percent (10%) from May through October. Severe flooding occurred during the
9 months of January and March, 1995 and in 1998 and 2006.
10
11 Relative Humidity: Humidity generally ranges from fifty percent (50%) during daytime and eighty-
12 six percent (86%) at night. It drops to twenty-percent (20%) during the summer months and
13 occasionally drops lower during the months of September through November.
14
15 Temperatures: Temperatures have been recorded as high as 104 degrees Fahrenheit. Average
16 summer highs are in the 78-85 degree range.
17
18 Winds: Prevailing winds are from the, northwest. However, winds are experienced from virtually
19 every direction at one time or another. Velocities are generally in the 5-15 mph range, gusting to
20 7.4-30 mph, particularly during the summer months. Extreme winds, up to 50 mph, have been
21 known to occur.
22
23 Soils: Much of Petaluma has "Adobe" type soil. This soil has very high clay content and is
24 extremely expansive. With Petaluma's dry summers and wet winters, the moisture content of the
25 soil varies greatly during the course of the year. This moisture content change causes
26 expansion/contraction of the clay soil. This expansion/contraction can place significant loads
27 on concrete slabs and foundation systems making some "standard" foundation
28 methods/materials inappropriate for the local conditions encountered.
29
30 TOPOGRAPHIC
31
32 The topographic environment of a community is primarily a combination of two (2) factors: the
33 area's physical geographic characteristics and the historic pattern of urban-suburban
34 development. These two (2) factors, alone and combined, create a mixture of environments
35 which ultimately determine the needs of the City of Petaluma's Building regulations.
36
37 The basic geographical boundaries of the city include hills to the south and west, and valley
38 floor in the central area and to the north and east. The Petaluma River bisects the city through
39 the central area. The City of Petaluma covers 13 square miles, including an urban population
40 estimated at 58,000. The city's service area is a conglomeration of bay, plains, hills, valleys, and
41 ridges.
42
43 GEOLOGICAL
44
45 The relatively young geological processes that have created the San Francisco Bay Area are still
46 active today. Two (2) active earthquake faults (San Andreas and the Hayward-Rodgers Creek)
47 affect the Petaluma area. Approximately fifty percent (50%) of the city's land surface is in the
48 high-to-moderate seismic hazard zones.
49
50 Many of the soils found throughout the City of Petaluma are highly expansive adobe type soils.
51 The combination the highly expansive nature of these soils along with the long dry summers
Ordinance No. 2475 N.C.S. Page 12
1 followed by a compressed rainy season create high stresses on building foundation systems, as
2 such some simpler types of foundation systems are not adequate for these soils conditions.
3
4 As there are no "isolated, self-contained" areas within City limits the Grading Permit exception
5 J 103.2 (1) was removed for clarity.
6
7 PROCEDURAL CLARIFICATION
8
9 Changes to the Stop Work Order section are made to more clearly explain the Stop Work Order
10 process and to establish the penalties for violations of this section.
11
12 DEFINITION CLARIFICATION
13
14 Due to code enforcement problems in the past, the description of buildings not requiring permits
15 was expanded to help clarify when permits are/are not required.
16
17 CONTINUITY
18
19 All the amendments to Chapters 7 and 9 of Part II (Building Code) of the California Building
20 Standards Codes contained in this Ordinance are made so that they reflect amendments to
21 chapters 7 and 9 of Part 9 (Fire Code) of the California Building Standards Code made through a
22 separate Ordinance sponsored by the Fire Marshal's Office.
23
24 SUMMARY
25
26 These local climatic conditions affect the pressures applied to concrete flatwork and
27 foundations beyond the strength of welded wire fabric reinforcement material.
28
29 The population and housing density increased the dangers of accidental drowning's thus
30 requiring the need to have taller swimming pool barriers.
31
32
33 CONCLUSION
34
35 The local climactic and geological conditions have necessitated these minor modifications to
36 the Title 24 California Building Standards Codes.
37
38
39
40
41
42
43
44
45
46
47
48
49
50
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