12 Va. Admin. Code § 5-590-1170 - Hydrants
A. Fire hydrants.
1. To avoid cross-connection and
contamination, dry barrel fire hydrants:
a.
Should be located in areas that are not subject to high groundwater, flooding,
surface water ponding, and contaminant or pollutant spills. When this is not
practical, consideration shall be given to:
(1) Piping the drain port to daylight with
screening on the end of the pipe; or
(2) Plugging the drain port and marking the
hydrant for seasonal dewatering.
b. Shall comply with the ANSI/AWWA C502-18
standard, to include drain ports that are physically isolated from the drinking
water system by the hydrant stem valve; and
c. Shall be drained to the ground surface or
to a dry well provided exclusively for this purpose. Fire hydrant drains shall
not be connected to sanitary sewers or storm drains.
2. Fire hydrants shall be connected only to
water mains adequately designed for fire flows in accordance with the
requirements of
12VAC5-590-1120
B.
B. Yard hydrants.
1. Shall have a hose connection vacuum
breaker, meeting ASSE 1011-2017 or ASSE 1052-2016, if the hydrant has hose
threads and is not already protected with an integral vacuum breaker.
2. To avoid cross-connection and
contamination, yard hydrants installed in areas subject to high groundwater,
flooding, contaminant, or pollutant spills or in areas where surface water
ponds shall:
a. Meet ASSE 1057-2012,
Performance Requirements for Freeze Resistant Sanitary Yard Hydrants with
Backflow Protection; or
b. Have
hydrant drain ports that are piped to daylight with screening on the end of the
pipe; or
c. Be contained from the
rest of the distribution system by a backflow prevention assembly suitable for
a high hazard.
3.
Frost-proof yard hydrants with weep holes draining below grade are allowed
provided they are not installed in areas subject to high groundwater, to
flooding, or to contaminant or pollutant spills or in areas where surface water
ponds.
C. Hydrants and
flushing devices not designed for fire protection may be connected to pipe of
less than six inches in diameter, consistent with
12VAC5-590-1120
A.
Notes
Statutory Authority: §§ 32.1-12 and 32.1-170 of the Code of Virginia.
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.