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PDFWAC 296-307-40017

Where may anhydrous ammonia containers be located?

(1) When selecting the location for a storage container, you must take into account the physiological effects of ammonia and adjacent fire hazards. Containers located indoors must be in areas especially approved for container storage.
(2) Containers must be located at least fifty feet from a dug well or other sources of potable water supply, unless the container is a part of a water treatment installation.
(3) Permanent storage containers must be located outside densely populated areas.
(4) Containers must be located according to the following:
Minimum distances (feet) from container to:
Nominal
capacity of
container
Line of
adjoining
property that
may be built
upon, highways
& main line of
railroad
Place of
public
assembly
Institution
occupancy
Over 500 to
2,000
25
150
250
Over 2,000 to
30,000
50
300
500
Over 30,000 to
100,000
50
450
750
Over 100,000
50
600
1,000
(5) Storage areas must be kept free of readily ignitable materials such as waste, weeds and long dry grass.
[WSR 97-09-013, recodified as § 296-307-40017, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-40017, filed 10/31/96, effective 12/1/96.]
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