HomeMy WebLinkAboutStaff Report Item 5.B 11/18/2013 Ag da'Iten#5 .3
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DATE: November 18,2013
TO: Honorable'Mayor and Members of the City Council through City Manager
FROM: Edward John Hamer, Senior Building Official
SUBJECT: Second reading anchadoption of an Ordinance of the City of Petaluma Adopting
the 2013 Edition of the California Building Standards Code, California Code of
Regulations Title24, Parts, 1, 2, 2.5, 3, 4, 5, 6, 8, 10, 11 and 12, and Amendments
Thereto.Based-on Local Climatic, Geological and Topographic Conditions
RECOMMENDATION
It is recommended that the City Council conduct a second reading and adopt the attached
Ordinance of the City of Petaluia Repealing Sections 17.04.010 entitled "Adoption of Uniform
Codes", and Section 17.04.020 entitled "Amendments Made in California Building Code" of the
Petaluma Municipal Code.and Adding New Sections 17.04:010 and .020'Adopting by Reference
the 2013 Edition of the California Building Standards Code, California Code of Regulations Title
24, Parts, 1, 2, 2.5, 3,A, 5, 6, 8, 10, 11, and 12, and Amendments Thereto Based on local
Climatic, Geological and-topographic Conditions.
BACKGROUND
This ordinance was introduced during the October 21, 2013 meeting ofthe City of Petaluma City
Council. During the discussion a Council Member noted that there was one reference that was
not gender neutral.on page 4, line 30. The Council instructed staff to amend the draft ordinance
so that it is gender neutral. Thi's change has now been made, and does not change the intent of
this section.
DISCUSSION
It is recommended that pursuant to Section 50022.2 of the California Government Code, the
following codes be adopted by reference, including amendments which are;made pursuant to the
findings of fact set forthin the adopting•ordinance:
A. Part 1 2013 California Administrative Code;
B. Part 2-2013 California Building Code based on the 2012 International Building Code,
including Chapters 3,1B (Public Swimming Pools) and 33 (Safeguards During
Construction) in theirientirety except as amended in Section 17.04.020;
C. Part 2.5-California-Residential-Code based on the 2012 International Residential Code
including Appendix Chapters G (Swimming Pools and Hot Tubs) and K (Sound
Transmission) in their entirety.except as amended in 17:04.020;
D. Part 3-2013 California Electrical Code based on the 2011 National Electrical Code;
Agenda Review:
City Attorney _ Finance Director City Manager Ocj
E. Part.4-2013 California Mechanical Code based On the 2012 Uniform Mechanical Code
including Sections 101.0 through 118.1 of Chapter 1 inclusively (Administration);
F. Part 5-2013 California Plumbing Code based on the 2012 Uniform Plumbing Code
including Sections.101.1 through 103.1 of Chapter I inclusively (Administration);
G. Part 6-2013 California Energy Code;
H. Part 8-2013`California Historical Building:Code;
I. Part 10-2013 California Existing Building Code based on the 2009 International
Existing Building Code;
J. Part 11-2013 'California Green Building Standards Code as amended in. Section
17.04.020;
K. Part 12-2013 California Referenced Standards Code;
All references to permit fees in the codes will be deleted pursuant to the ordinance prepared for
this year's triennial building standards code adoption. Instead, the permit fees applicable in
Petaluma will be fixed by.the.fee schedules adopted by the city council via resolution.
FINANCIAL IMPACTS
There are not direct financial impacts to the City of Petaluma with the adoption of these codes
and amendments.
ATTACHMENTS
1. Proposed Ordinance(with Exhibit A) adopting the.2013 California Building Standards
Code and City of Petaluma local amendments.
ORDINANCE NO. N.C.S.
Introduced by Seconded by
AN ORDINANCEiOF THE COUNCIL OF THE CITY OF PETALUMA
ADOPTING BY REFERENCE THE 2013 EDITION OF THE CALIFORNIA
BUILDING STANDARDS CODE, INCLUDING: PART 1, 2013
CALIFORNIA ADMINISTRATIVE CODE; PART 2, 2013 CALIFORNIA
BUILDING CODE; PART 2.5 CALIFORNIA RESIDENTIAL CODE; PART
3, 2013 CALIFORNIA ELECTRICAL CODE; PART 4 2013 CALIFORNIA
MECHANICAL CODE; PART 5 2013 CALIFORNIA PLUMBING CODE;
PART 6, CALIFORNIA ENERGY CODE; PART'8, 2013 CALIFORNIA
HISTORICAL BUILDING CODE; PART 10, 2013;CALIFORNIA EXISTING
BUILDING CODE; PART 11 2013 CALIFORNIA GREEN BUILDING
STANDARDS CODE; AND PART 12, 2013 CALIFORNIA REFERENCED
STANDARDS CODE,AND LOCAL AMENDMENTS TO SPECIFIED
PROVISIONS OF THE CALIFORNIA BUILDING.STANDARDS CODE
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF PETALUMA AS
FOLLOWS:
SECTION 1: REPEALED. Section 17.04.010 entitled "Adoption of Uniform Codes"
and Seduction 17.04.020 entitled "Amendments Made in California Building Code" of the
Petaluma Municipal Code are-hereby repealed in their entireties.
SECTION 2: FINDINGS. The City Council of the City of Petaluma finds that in order to
best protect the health, safety and welfare of the citizens of the City of Petaluma, the standards of
building within the City must conform with state law except where local climatic, geological, and
topographic conditions warrant more restrictive regulations'. These considerations support
adoption of the state building codes contained in California Building Standards Code, Title 24, and
other,uniform codessgoverning-,the construction and regulation ofbuildings and strubtures with the
modifications and amendments contained herein.
Pursuant to California Health and Safety Code Section 17958.7, the City Council makes the factual
findings set forth in "Exhibit A" attached hereto and incorporated herein by reference, and finds
that the amendments made in this ordinance to the California Building Standards Code Title 24,
Parts 1, 2, 2.5, 3, 4, 5, 6, 8, 10, 11, and'12, are reasonably necessary because of the local climatic,
geological or topographical conditions described in Exhibit A.
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SECTION 3::, CURRENT BUILDING CODES,ADOPTED.
Section 17.04.010 entitled "Adoption of Uniform Codes" and Section 17.04.020 entitled
"Amendments made in California Building Code" are hereby added to the Petaluma
Municipal Code to read as follows:
17.04.010 - Adoption of Uniform'.Codes. Pursuant to 'Section 50022.2 of the California
Government Code, the following codes are adopted by reference, including the
amendments listed in tliischapter, which are made pursuant to the findings of fact set forth
in Exhibit A of the adopting ordinance.
A. Part 1-2013 California Administrative Code;
B. Part 2-2013 California Building Code based on the 2012 International Building
Code, including"Chapters 31B (Public Swimming Pools) and 33 (Safeguards During
Construction)in their entirety, except as amended in Section 17.04.020;
C. Part 2.5—California.Residential Code based on the 2012 International Residential
Code including Appendix Chapters G (Swimming Pools and Hot Tubs) and K
(Sound Transmission) in their entirety, except as amended in Section 17.04.020;
D. Part '3-2013 California Electrical Code based on the 2011 National Electrical
Code;
E. Part 4-2013 California Mechanical.Code based on the 2012 Uniform Mechanical
Code including Sections 101.0 through 118.1 of Chapter 1 inclusively
(Administration);
F. Part 5-2013 California Plumbing Code based on the 2012 Uniform Plumbing
Code including Sections 101.1 through 103.1 of Chapter 1 inclusively
(Administration);
G. Part 6-2013 California Energy Code;
H. Part 8-2013 California Historical Building Code;
I. Part 10-2013 California Existing Building Code based on the 2009 International
Existing,Building Code;
J. Part: 11-2013 California Green Building Standards Code at the Mandatory Level
for. all Additions and Alterations, and at. the Tier'one level for all Wholly New
Construction, with the exception of Appendix A4, Division A4.2 Energy Efficiency
and Appendix A5, Division A5.2 Energy Efficiency; neither of which are adopted;
K. Part 12-2013 California Referenced Standards Code.
However; all fee; amounts in the codes adopted by reference are hereby deleted. Fees
applicable in the city for inspections, permit issuance and any and all other services related
to the codes adopted by reference will be fixed by fee schedules set by the city council by
duly adopted resolution.
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17:04.020 = Amendments Made in California Building Code. Part 2 of the 2013
California Building Standards Code, California Building Code, as adopted in section
17.04.010, is hereby amended to include the following additions, amendments and
deletions:
Section.105:2 (1) is hereby amended to read`as follows:
105.2 (1) - One-Story Detached Accessory Structures Used as Tool and Storage Sheds,
Playhouses and Similar Uses. Provided the floor area is not greater than one hundred
twenty square feet (120' sq.) (11 m2), there are no wall finishes such as, but not limited to,
gypsum wallboard, plaster, stucco, or paneling placed on any interior surface of any wall
and/or partition, and no electrical, mechanical or plumbing systems are contained within
the structure.
Section.115 is hereby amended to read as follows:
115 - Stop Work Orders.
115.1 - Authority. Whenever the building official finds any work regulated by this code
being performed in a manner that is contrary to the provisions of this code, without a
permit, beyond the scope,of the issued permit, in violation of the Petaluma.Municipal Code
or Zoning Ordinance, or dangerous or unsafe, the building official is authorized to issue a
stop work order.
115.2 - Issuance. The stop work order shall be in writing and shall be posted in a visible
location near the location where the work is being conducted. If the owner or owner's agent
is not on site at the time of posting, a notice.advising the reasons for the stop work order
issuance shall be hand delivered or mailed first-class to the owner of the property involved,
or to the owner's agent; or to the person doing the work. Upon issuance of a stop work
order, the cited work shall immediately cease. The stop work order shall state the reason for
the order, the conditions under which the cited work will be permitted-to resume, and the
name and contact information of the official or agency issuing the order.
115.3 - Unlawful Continuance. Any person who continues to engage in any work after
having been served with a stop work order, except such work as that person is directed to
perform to remove a violation or unsafe condition, shall be guilty of a misdemeanor.
115:4 - Removal of Posted .Stop Work Order. Any person who removes a posted stop
work order without written consent of the Building Official shall be guilty of a
misdemeanor.
115.5- Response Required. Violators receiving a stop work order are required to respond
to the Building Division within two (2) business days of the issued notice to receive
instructions on how to rescind the order.
115.6 - Permit Application Required. A building permit application with construction or
demolition plans and .supporting (structural calculations, energy calculations, accessible
access) documents must be submitted for approval within fifteen (15) working days
following response to the Building Division. Plans will be reviewed and correction letters
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issued or permit application approved within fifteen (15) working days of receipt by the
Building:Division..A response to any correction letter must be submitted within fifteen (15)
working days of the date of the correction.letter: Five working days will be required to
review this second submission and a permit approved for issuance. Permits ready for
issuance must be issued within 5 working days thereafter. All construction must be
inspected as work progresses and signed off by all (affected) departments within 60 days of
building permit issuance.
115.7 - Stop Work Order Penalty. The Building Official may impose Stop Work Order
Penalties in accordance with Section 1.14.050 of this code and/or other applicable law.
CHAPTER 7— FIRE RESISTANCE-RATED CONSTRUCTION
Section 722 is added to read as follows:
722 - Repair of Breaches of Non-Rated Walls/Ceilings in Fire Zone 1. Breaches,
openings, holes or other broken wall and ceiling ,areas in buildings in Fire Zone 1
(generally defined,as Downtown Business District) as defined in Section 17.22 of the
Petaluma Municipal Code shall be repaired, restored or replaced when damaged, altered,
breached, penetrated,removed or improperly installed. Openings/breaches can be repaired
with like material.such.as lath and plaster, sheetrock„plywood or other reasonable barrier.
The intent of this Section is to close openings/breaches to limit the spread of fire and
products of combustion in the downtown business district buildings.
CHAPTER 9—FIRE PROTECTION SYSTEMS
Section 901.2.1 is added to read as follows:
901/.1 - Problematic and Unreliable Fire Alarms. The Fire Chief may determine a fire
alarm to be unreliable upon receipt of more than three (3) false alarms within a twelve-
month period. Upon making such a finding, the Fire Chief may order the following:
(a) For any nuisance:alarm where the system is not restored, the Fire Chief may require
the system owner to provide standby personnel or take such other measures as the Fire
Chief deems appropriate. Such measures shall remain in place until a fire department
approved fire alarm maintenance firm certifies in writing to the Fire Chief that the alarm
system has been restored to a reliable'condition..The Fire Chief may require such tests as
he/she deems necessary to demonstrate the adequacy of the system.
(b) Require the owner to pay mitigation fees pursuant to the City of Petaluma fee
schedule.
Section 903.2 is amended to read as follows:
903.2 Where: Required. Approved automatic sprinkler systems in new buildings and
structures shall be provided in locations described in this section. Additional local
requirements are described in Sections 903.2.1 through 903.2.19.1.2 and may supersede the
following requirements. The most restrictive requirement shall apply.
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Section 903.2.20 is added to read as follows:
903:2.20 - Local.Fire"Sprinkler System Requirements.
Section 9031220.1 is added to read as follows:
9032.20.1 - System'Requirements: An approved automatic fire sprinkler,system shall be
installed and maintained in all newly constructed buildings.
Exceptions:
1. Detached Group U occupancies one thousand.squarefeet (1,000' sq.) or less
agricultural buildings and private riding arenas as approved by the Fire or Building
Code Official.
2. Detached pool houses up to one thousand square feet (1,000' sq.) in floor
area within.fifty feet (5.0') of the pool and.limited to a single bathroom.
3. Detached non-combustible motor vehicle fuel dispensing canopies classified
as Group M occupancy.
4. A room above a.detached garage used for'storage'only that does not contain
a bathroom, cooking or refrigeration facilities.
5. Detached carports of noncombustible construction with non-habitable
spaces above.
6. Detached Group B or M occupancies five hundred square feet (500' sq.) or
less.
Section 9032.20.2 is added to read as follows:
903.2.20.2 Additions-Residential. Additions' to existing residential buildings that
increase the total square footage of existing floor area by fifty percent (50%) or greater
shall meet the requirements for a newly constructed building. This requirement applies to
the cumulative effect on square-footage of 50% or greater'as a result of additions taking
place over a five year period involving one or more building permits. All additions to
residential.buildings with an existing approved automatic sprinkler system shall be required
to extend'the sprinkler_system into the addition.
Section 903.210.3 is added to read as follows:
903.2.203 - Remodels, Repairs and/or Alterations. Residential remodels, repairs and/or
alterations, individually or any combination 'thereof, involving fifty percent (50%) or
greater of=square footage of the existing floor area shall meet.the requirements for a newly
constructed,building. This requirement applies to the cumulative effect on square footage
of fifty percent (50%) or greater as a result of remodels, repairs and/or alterations taking
place over a five year period involving one or more building permits.
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Section 903:2.20.5 is added to read:
903:2.203 - Additions-Commercial and Multi-Family Additions. Additions to existing
commercial buildings that increase the total square footage of existing floor area by twenty-
five percent (25%) or greater shall meet the requirements for a•newly constructed building.
All additions to commercial buildings with an existing approved automatic sprinkler
system shall be required to extend the sprinklers into the addition.
Section 9012.20.6 is added to read as follows:
903/.20.6 - Remodels, Alterations or Repairs-Commercial. For remodels, alterations
and/or repairs to existing building(s) involving demolition, removal or repair of fifty
percent (50%) or greater of the structure, the building shall meet the automatic fire
sprinkler requirements'for a newly constructed building.
Exceptions: Alterations or additions made solely for the purpose of complying with the
American's with Disabilities Act.
Section 903.2c20.7 is^added to read:
903.2:20.7 - Changes,of Occupancy. When any change of occupancy occurs where the
proposed new occupancy classification is more hazardous based on fire and life safety risks
as determined by the Fire Code. Official including, but not limited to, the conversion of
residential buildings to condominiums, the building shall meet the fire sprinkler
requirements for a`newly constructed building.
Section 903.2.20:8 isiadded to read:
903.2.20.8 -_ Residential Conversions. Fire sprinkler systems shall be installed in all
single,family dwellings that are converted to duplexes and/or multi-family dwellings, bed
and breakfasts, inns, lodging houses or similar uses. Fire sprinkler systems shall be
installed in all conversions of detached garage into living space or sleeping space.
Section 903.2.20:9 is added to read as follows:
9.03220.9 - Elevation of Existing Buildings. An automatic fire extinguishing system
shall be installed throughout all existing buildings when the building is elevated to three (3)
or more stories or more than thirty-five feet'(35') in height, from grade to the exposed roof.
Exceptions:An,automatic fire-extinguishing system need not be provided when the area
• above thirty-five:feet (35') is provided for aesthetic purposes only and is a non-habitable
space.
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Section 903.2:20.10 is added to read:
903:2:20.10 - Installation of Automatic Fire Sprinklers in Pre-Existing Buildings
(Historic Downtown Business District).
(a) Geographic Boundary-Historic. Downtown Business District: For the
purposes of this section„the Historic Downtown Business District shall include all
buildings located inside the geographic area generally formed by Kentucky Street
to the west, Washington Street to the north, the Petaluma River to the east and B
Street to the south_ Also included in this section is 201 Washington Street
(Phoenix Theater,) and 132 Keller Street (formerly Tuttle Drug), as more
particularly described in Figure 1003.2.12.
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(b) Installation Requirements: An automatic sprinkler system conforming to
the Standard for the Installation of Sprinkler Systems (NFPA-13) shall be
installed in all existing buildings in the Historic Downtown Business District in
accordance with the following;criteria:
(1) Kentucky Street and Western Avenue:
a. In any building wherein a change of occupancy occurs.
b. In any building or occupancy where the square footage of the
building or .occupancy is increased or alterations to the
structure are made pursuant to Section 903.2.19.3, Section
903.2.19.4, Section 903.2.19.5, Section 903.2.19:6, Section
903.2.19.7 and Section 903.2.19.8 of this Ordinance.
c: All buildings with basements or space below street grade used
for storage, business or public use shall have automatic fire
sprinklers installed within the basements or the below street
grade areas no later than December 31, 2010.
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d. All buildings not-meeting the criteria of(a) or (b) above shall
have automatic fire sprinklers installed throughout the
structure, including all public, private; storage and/or
concealed spaces, as defined by the Standard for the
Installation of Sprinkler Systems (NFPA-13) by no later than
December 31, 2016.
(2) Petaluma. Boulevard North: Automatic fire sprinkler requirements
shall not become effective until the City of. Petaluma installs an
appropriate sized water main and laterals to the curb lines similar to the.
main previously installed on Kentucky Street and Western Avenue, Upon
notice by the. City of such installation, an sprinkler system
conforming to -the Standard for the Installation of Sprinkler Systems
(NFPA-13) shall be installed according to the following criteria:
a. In any building wherein a change of occupancy occurs.
b. In any building or occupancy where the square footage of the
building or occupancy is increased or alternations to the
structure are made pursuant to Section 903.2.19.3, Section
9012.19.4, Section 903.2.19.5, Section 903.2.19.6, Section
• 903.2.19.7 and Section 903.2.19.8 of this Ordinance.
c. All buildings with basements or space below street grade used
for storage, business or public use shall have automatic fire
sprinklers installed within the basements or the below street
grade areas; no later than December 31 of the year that is six
(6) years from the date of the water main installation.
d. All buildings not meeting the criteria of (a) or (b) above shall
have automatic fire sprinklers installed throughout the
structure, including all public, private, storage and/or concealed
spaces;, as defined by the Standard for the Installation of
Sprinklers (NFPA-13), no later than.,December 31 of the year
that is twelve (12) years from the date of the water main
installation.
,(3) Property Owner's Responsibility for System Installation:
a. The Property Owner shall be responsible for installation of the
lateral service from the curb line into the building. This also
includes isolation, check or other valves or devices, as
applicable.
b. The Property Owner shall be responsible for the installation of
the automatic fire sprinkler system according to the Standard
for the Installation of Sprinkler Systems (NFPA-13).
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(4) Plans and Specifications: Plans and. Calculations (NFPA-13, Chapter
8) for the servicelateral and fire sprinkler system shall be submitted to
and approved by the Fire Prevention Bureau prior to installation of
equipment and materials.
a. For the Kentucky Street installations that are required on or
before December 31, 2010 or December 31, 2016, all Plans and
Calculations for service lateral and sprinkler systems shall be
submitted no later than June 30, 2010 or June 30, 2016
respectively, with installation and approval of work to occur
prior to December 31, 2010 or December 31, 2016
respectively.
b. For Petaluma Boulevard North installations that occur in the
last year of the six (6) or twelve (12) year deadline (when
established)after the installation of the water main by the City
of Petaluma, Plans and Calculations shall be submitted in that
last year no later than June 30 of that year, with installation and
approval of work to occur prior to December 31 of that last
year.
Section 9033 is amended as follows:
903.3 - Installation_:Requirements. Sprinkler systems shall be designed and installed in
accordance with,NFPA-13, NFPA-13R (if approved by the Fire Code Official) and NFPA-
13D. Pursuant to Section 102.7.1 and Section 105.1.4, the Fire,Code Official may require
additional sprinkler coverage to mitigate certain conditions such as access or water supply
issues.
Section 9033.1 is amended to read:
9033.1 - Design Criteria. Fire sprinkler systems installed in buildings of undetermined
use shall be designed and installed to have a design density of.33 gallons per minute per
square foot over a minimum design area of three thousand square feet (3,000' sq.). Where a
subsequent ,occupancy change requires a system with greater capacity, it shall be the
building owners' responsibility to upgrade the system to the required density and meet any
additional requirementsof the Fire Code at the time of such change.
Section 903.3:7 is amended'to'read as follows:
903.17 -- Fire Department Connections. The location of fire department connections
(FDC's) shall..be within fifty feet (50') of a fire hydrant or as approved by the Fire Code
Official. Approved locking caps shall be provided on all newly`installed FDC's and on any
existing.FDC's found to be vandalized.
Section 903A is amended to read as follows:
903.4 - Sprinkler System Monitoring and Alarms. Except for Group R, Division 3
Occupancies, all valves controlling the water supply for automatic sprinkler systems,
pumps, tanks, water levels, temperatures, critical air pressure and water flow switches shall
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be electronically supervised. Valves when used for standpipes are excluded from this
provision unless required by the Fire Code Official.
Section'903.4.2 is•amended to read as follows:
903.4.2 - Alarms. One (1) exterior approved audible and visual device shall be connected
to every automati •fire sprinkler system in an approved location. Such sprinkler water flow
alarm devices shall be activated-by water flow equivalent to the flow of a single sprinkler
of the smallest orifice,size=installed in the system. Where a building fire alarm system is
installed, actuation of the automatic fire sprinkler system shall actuate the building fire
alarm system.
Every new commercial fire•alarm system installed as.a sprinkler system monitoring..alarm,
including those systems activated solely by fire Sprinklers, shall also function for the
purpose of occupant notification, so that occup'ants.of the building shallbe.notified audibly
and visually within,each major suite or tenant space. .A minimum of one (I) notification
device shall be located in each major suite in a normally occupied location as determined
by the Fire.Code Official or building division.
Section 9053.1 is'amended to read as follows:
905:3.1 - Building Height Class I standpipes shall be installed in buildings three stories
or over,in height and/or if, in the opinion of the Fire Chief, a hazard or condition exists in
which the installation of standpipes.would improve firefighting operations. Standpipes will
be provided with approved outlets provided on each floor level, including the roof when
roof access is.provided.
Section 905.9 exception 2 is deleted.
Section 907.10 is added-to read as follows:
907.10 - False Fire Alarm s. Owners of properties with a fire alarm system shall maintain
the system in accordance with section 907:8. False alarm fees shall be assessed per the
current adopted city'fee;schedule.
Section.1907.2 is hereby added to read as follows:
1907.2'- Prohibited Concrete Reinforcement Materials. Welded Wire Fabric of any size
or gauge shall not be used as concrete reinforcement of any concrete slab or flat work
including, but not limited to, flooring, sidewalks, patios, driveways, foundation slabs,
equipment slabs, and roadways.
APPENDIX- Chapter J is herebymodified by deleting J103.2 Exception 1.
Section 3109•is hereby modified to read as follows:
3109.4 - Residential Swimming Pools.Exception is deleted.
Section 3109:41 is hereby modified in part to read:
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3109.4.1 Barrier.Height and Clearances. thertep of the barrier shall,not be less than 72
inches (1829 mm) above grade measured on,the side.ofthe barrier that faces away from the
swimming pool.
SECTION 2.5: The California Residential Code, as adopted in section 17.04.010, is
hereby amended to include the•following additions, amendments and deletions:
Section AG105.2 (1).is:modified in part to read:
(1) The top of the barrier shall not be less than 72 inches (1829 mm) above grade measured
on the side of the barrier that faces away from the swimming pool.
SECTION 4. SEVERABILITY
If any part of this ordinance is for any reason held to be unconstitutional, unlawful or
otherwise invalid bya court of competent jurisdiction;,such decision will not affect
the validity of the remaining parts of this ordinance. The City Council of the City of
Petaluma hereby declares that it would have adopted this ordinance and each of its
provisions irrespective of any part being held invalid.
SECTION 5. CEQA NOT APPLICABLE
The City Council finds.that this ordinance is not subject to the:California
Environmental Quality Act ("CEQA") pursuant to section 15050(c)(2) of the CEQA
Guidelines, because.the:activity has no potential for resulting in a direct or reasonably
foreseeable indirect physical change in the environment, and pursuant to section
15060(c)(3) of the CEQA Guidelines, because the activity is not a project as defined
in Section 1537&of the CEQA guidelines.
SECTION 6. EFFECTIVE AND OPERATIVE DATES
This ordinance will become effective thirty days after the date of its adoption by the
Petaluma City Council, however, the provisions of this ordinance will not become
operativ&until January 1, 2014,,at the same time the 2013 edition of the California
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Building Standards Code takes effect.
SECTION 7. FILING
In accordance with California Health and Safety Code Section 17958.7,,the City
Clerk is hereby directed to filea.copy of this ordinance and the attached findings of
fact with the California Building Standards Commission prior to the effective date of
this ordinance:specified_above.
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SECTION 8. POSTING/PUBLICATION
The City Clerk is hereby directed to post and/or publish this ordinance or a synopsis
for the period and in the manner required by City Charter.
INTRODUCED and ordered posted/published this day Of , 2013.
ADOPTED this day of , 2013 by the following vote:
AYES:
NOES:
ABSENT:
David Glass,.Mayor
ATTEST: APPROVED AS TO FORM:
Clair Cooper, City Clerk Eric Danly, City Attorney
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EXHIBIT"A"
CLIMACTIC
Precipitation: Precipitation'ranges from twenty inches (20") to.approximately twenty-five inches
(25") per year. Approximately ninety percent (90%). falls during the months of November
through April, and ten percent (10%) from May through October. Severe flooding occurred
during the months of January and March, 1995 and in 1998 and 2006_
Relative Humidity: Humidity ,generally Jranges from fifty percent (50%) during daytime and
eighty-six percent (86%) at night. It drops to twenty-percent(20%) during the summer months
and occasionally drops lower during the months of September through November.
Temperatures: Temperatures have been recorded as high as 104 degrees Fahrenheit. Average
summer highs are in the 78-85 degree range.
Winds: Prevailing winds are from the.northwest. However, winds are experienced from virtually
every direction at one time,ofanother. Velocities are generally in the 5-15 mph range, gusting to
7.4-30 mph, particularly during the summer months. Extreme winds, up to 50 mph, have been
known to occur.
Soils: Much of Petaluma has "Adobe" type soil. This soil has very high clay content and is
extremely expansive. With Petaluma's dry summers and wet winters, the moisture content of the
soil varies greatly during the course of the year. This moisture content change causes
expansion/contraction of the clay soil. This ezpansion/contraction can place significant loads on
concrete slabs and foundation systems making some "standard foundation methods/materials
inappropriate for the local conditions encountered.
TOPOGRAPHIC
The topographic environment of a community is primarily a combination of two (2) factors: the
area's physical geographic .characteristics and the historic pattern of urban-suburban
development. These two (2) factors, alone and combined, create a mixture of environments
which ultimately determine the needs of the City of Petaluma's Building regulations.
The basic geographical boundaries of the city include:hills to the south and west, and valley floor
in the central area and to the north and east. The Petaluma River bisects the city through the
central area..' The City of Petaluma covers 13 square miles, including an urban population
estimated at'58;000. The city's service area is a conglomeration of bay, plains, hills, valleys, and
ridges.
GEOLOGICAL
The relatively young geological processes that have created the.San Francisco Bay Area are still
active today. Two (2) active earthquake faults (San Andreas and the Hayward-Rodgers Creek)
affect the Petaluma area. Approximately fifty percent (50%) of the city's land surface is in the
Exhibit A to Ordinance
Pave 1
high-to-moderate seismic hazard zones.
Many of the soils found throughout the City of Petaluma,are highly expansive adobe type soils.
The combination the highly expansive nature of these soils along with the long dry summers
followed by a compressedLrainy season create high stresses on building foundation systems, as
such some simpler types of foundation systems are not adequate for these soils conditions.
As there are no "isolated, self-contained" areas within City limits the Grading Permit exception
J103.2 (1) was removed for clarity.
PROCEDURAL CLARIFICATION
Changes to the Stop Work Order section are made to more clearly explain the Stop Work Order
process and to establish the penalties for violations of this section.
DEFINITION CLARIFICATION
Due to code enforcement problems in the past, the description of buildings not requiring permits
was expanded to help clarify when permits are/are not required.
CONTINUITY
All the amendments to Chapters 7 and 9 of Part II (Building-Code) of the California Building
Standards Codes contained in this Ordinance are made so that they reflect amendments to
chapters 7 and 9 of Part.9.(Fire•Code) of the California Building Standards Code made through a
separate Ordinance sponsored bythe Fire Marshal's Office.
SUMMARY
These local climatic conditions affect the pressures applied to concrete flatwork and foundations
beyond the strength of welded-wire fabric reinforcement material.
The population and housing density increased the dangers of accidental drowning's thus
requiring the need to have taller'swimming pool barriers.
CONCLUSION
The local climactic and geological conditions have necessitated these minor modifications to the
Title 24 California Building Standards Codes.
Exhibit A to Ordinance /l{/
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