Washington Administrative Code
Title 246 - Health, Department of
WATER SYSTEMS
Chapter 246-293 - Water System Coordination Act
Part III - FIRE FLOW
Section 246-293-640 - Minimum standards for fire flow
Current through Register Vol. 24-18, September 15, 2024
(1) City, town, or county legislative authority shall set minimum fire flows where local standards are adopted under WAC 248-57-900.
(2) Where local standards are not adopted under WAC 248-57-900, Table 1 shall identify minimum fire flows. Contact with the county and local fire protection authority shall be made before applying these standards in a water system plan or to design of individual development.
TABLE 1
MINIMUM FIRE FLOWS*
|
Development Classification |
Minimum Fire Flow Requirement |
|
|
(as described under WAC 248-57-400) |
||
|
Rural |
None |
|
|
Residential |
500 gallons per minute for 30 minutes |
|
|
Commercial and multifamily structures greater than 4000 sq. ft. |
750 gallons per minute for 60 minutes** |
|
|
Industrial |
1000 gallons per minute for 60 minutes** |
|
|
* ** |
Minium flows are in addition to requirements for normal domestic maximum use. Commercial and industrial buildings may be subject to higher flow requirements when evaluated on an individual basis by the local fire protection authority. |
|
|
Note: |
Minimum standards in most cases require less flow than categories in the guidelines published by the Insurance Services Office (Municipal Survey Service, 160 Water Street, New York, New York 10038) and therefore may not result in lower insurance rates. |
Statutory Authority: RCW 43.70.040. 91-02-049 (Order 121), recodified as § 246-293-640, filed 12/27/90, effective 1/31/91. Statutory Authority: Chapter 70.116 RCW. 89-16-065 (Order 2840), § 248-57-500, filed 7/31/89, effective 8/31/89. Statutory Authority: RCW 70.116.080. 79-04-007 (Order 1378), § 248-57-500, filed 3/12/79.
