2801ORDINANCE NO.2801
AN ORDINANCE CREATINGCHAPTER 16.50OFTHE MOSES LAKE MUNICIPAL
CODE ENTITLED "FIRE FLOW"
THE CITY COUNCIL OF THE CITY OF MOSES LAKE,WASHINGTON ORDAINS AS FOLLOWS:
Section 1.Chapter 16.50 ofthe Moses Lake Municipal Code entitled "Fire Flow"is created asfollows:
16.50.010 Statement of Policy:This chapter isenacted toestablish the procedure todetermine the fire flow
requirement forbuildings.
16.50.020 Definitions:
A.Fire Flow:The flow rate ofwater supply,measured ata minimum of twenty (20)pounds per
square inch (psi)(138 kPa)residual pressure,that isavailable for fire fighting.
B.Fire Flow Calculation Area:The floor area,in square feet used todetermine therequired fire
flow.
16.50.030 Fire Flow Calculation Area:
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A.General:The fire flow calculation area shall bethetotal floor area ofall floor levels within the
exterior walls,and under the horizontal projections ofthe roof ofa building except for Type IA
and 1B construction buildings.
B.Area Separations:Portions of buildings which are separated by fire walls without openings,
constructed in accordance with the International Building Code,areallowed tobe considered
as separate fire flowcalculation areas.
C. Type 1A and 1B Construction:The fire flow calculation areaof buildings constructed ofType
1Aand Type 1B construction shall bethe area ofthethree (3)largest successive floors.
16.50.040 Fire Flow Requirements for Buildings:
A. Oneandtwo family dwellings.The minimum fire flow and flow duration requirements for one
(1)and two (2)family dwellings having a fire flow calculation area that does not exceed three
thousandsixhundred (3,600)squarefeet shall beonethousand(1,000)gallons perminute for
one (1)hour.Fire flow and flow duration for dwellings having a fire flow calculation area in
excess of three thousand six hundred (3,600) square feet shall not be less than specified in
Table B105.1 of the 2012 edition ofthe International Fire Code.
B.BuildingsOtherThan One and Two Family Dwellings:The minimum fire flow and flow duration
for buildings other than one (1) and two (2)family dwellings shall be as specified inTable
B105.1 of the 2012 edition of the International Fire Code.
C. FireSprinkler Credit: Fireflowmay be reduced up to fiftypercent (50%) forbuildings equipped
with an automatic fire sprinkler system designed to National Fire Protection Association
(NFPA)Standard 13.Fire flowmay be reduced up to twenty-five percent (25%) forbuildings
equipped with an automatic fire sprinkler system designed to NFPA Standard 13R.
For buildings located more than five (5)road miles from the closest City of Moses Lake Fire
Station,a maximum reduction of forty percent (40%)will be granted for NFPA 13 systems and
ten percent (10%)for NFPA 13R systems.
D.Fire Flow Adjustment Based on Occupancy Classification:
1.Non-Combustible:25%reduction
2.Slow burning,limited combustibles:15%reduction
3.Moderate burning:No reduction
4.Free Burning:15%addition
5.Quick,intense,flash burning:25%addition
E.Fire flow Adjustment Based on Structural Exposures:
0-10 feet:25%addition
11-30 feet:20%addition
31-60 feet:15%addition
61-100 feet:10%addition
101-150 feet:5%addition
Section 2. This ordinance shall take effect and be in force five (5)days after its passage and publication of
its summary as provided by law.
Adopted by the City Council and signed by its Mayor on March 8,2016.
Todd Voth,Mayor
W.Robert Taylor,Finalise Director
APPROVED AS TO FORM:
Katherlne L.Kenison,CityAtbfn^y
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