Current through Register Vol. 46, No. 3, March 25, 2022
(a) All distribution treatment plants (e.g.
booster chlorination stations) shall be monitored by an operator of appropriate
grade, at a frequency to ensure proper operation, but in no case less than once
a day. Such monitoring may be accomplished through site visits and/or remote
monitoring equipment approved by the Department
(b) All community and non-transient
non-community water systems must designate an operator(s) of appropriate grade
as the operator responsible for the operation and maintenance of their
community and non-transient non-community water systems must be operated such
that all personnel making decisions which could affect water quality, water
quantity, or distribution system integrity be certified distribution system
operators. Certified water treatment plant operators that make such decisions
as a part of their routine treatment plant operation duties (e.g. starting and
stopping distribution pumps) are not required to have dual
elevated, hydropneumatic and ground storage tanks shall be inspected at a
minimum of once a week for the purpose of checking on the security of the
tank(s) and insuring that proper air/water ratios are being maintained in
hydropneumatic storage tanks. Vent screens, hatches and other openings on
atmospheric tanks must be inspected annually to ensure sanitary
(3) The drainage system
on any storage tank lot shall be maintained to channel water away from the tank
(4) Valves provided
for the isolation of each tank shall be maintained to ensure proper
(5) Screens shall be
maintained on all storage tank vents.
(6) Screens or flap valves shall be
maintained on all storage tank overflows.
(7) The minimum pressure in the distribution
system under normal operating conditions shall be twenty-five (25) pounds per
square inch at a customer's service connection. A minimum pressure of twenty
(20) pounds per square inch shall be maintained at all service connections
during unusually heavy flows (i.e., fire or flushing).
(8) Each public water system shall maintain a
map of the distribution system which shows the location of water lines and
their sizes as well as the location of all valves, hydrants and blow-offs. The
location of all water sources and all pumping, treatment and storage facilities
shall also be included on this map.
(9) Valves and hydrants shall be exercised
and maintained in accordance with the system's valve and hydrant maintenance
program to ensure operability. Any valves or hydrants that malfunction shall be
repaired promptly. Records shall be kept on this maintenance program.
(10) A flow test shall be conducted on all
fire hydrants at a minimum of once every three years. The flow from the hydrant
shall be measured and recorded along with the static and residual pressure and
time of day the test was conducted. The system shall keep a record of the
latest test of each hydrant on file.
(11) All community water systems shall
initiate and carry out a program aimed at detecting leaks in the distribution
system. At a minimum, a leak detection program shall include a comparison of
water produced to water sold or used for other purposes. Any leaks found
through this program or any leaks discovered through other means shall be
repaired promptly. Records shall be kept of the leaks detected and the repairs
(12) When a break occurs in a
system's distribution line, the repairs to that line must be made promptly and
in accordance with good sanitary practices. Precautions shall be taken
throughout the repair process to make sure that customers affected by the break
will be assured of safe water after the line is placed back into
(13) All public water
systems shall develop and maintain a flushing program in order to prevent
customer complaints caused by stagnant, discolored, and sediment laden water
and maintain adequate disinfectant residuals throughout the distribution
system. Detailed instructions of this program shall be included in the system's
manual of standard operating procedures. Records of all flushing activities
shall be maintained by the system.
(14) The Department shall be notified in
writing at least ten (10) days prior to the repainting of the interior or
exterior of any storage tank. All interior paint coatings shall be certified as
meeting ANSI/NSF Standard 61.
A storage tank that is drained for any reason must be properly disinfected and
satisfactory bacteriological samples must be obtained prior to placing it back
(16) The Department
shall be notified in writing at least thirty (30) days prior to the entry of an
underwater diver into a finished water storage tank for the purpose of
inspecting or cleaning of the tank.