Current through Register Vol. 46, No. 12, March 20, 2024
(a) Quantity of
supply. Every water corporation will file with the department a copy of its
emergency plan for maintaining a reasonable supply of water during a drought or
other emergency affecting the maintenance and delivery of a safe and adequate
supply of potable water. A water corporation may submit a copy of the plan
filed with and approved by the State Department of Health pursuant to 10 NYCRR
5-1.33. The plan will include provisions for implementing water use
restrictions and other conservation measures and for utilizing alternate and
existing or potential emergency supplies.
(b) Surface sources. Each water corporation
that employs a surface source of supply shall comply with the provisions of the
Ten State Standards, with the additional requirement that the maximum projected
demand shall take into consideration forecasted growth or decline in both the
number of customers and in system usage for at least a 10-year period into the
future. Also, such projections shall be updated on an ongoing basis and where
they show that demand will exceed supply, the water corporation shall undertake
all reasonable efforts to reduce and control future demands to bring them into
balance with supply. If appropriate, the water corporation shall develop plans,
consistent with existing State requirements, to secure additional
supply.
(c) Groundwater sources.
Each water corporation that employs groundwater sources of supply shall comply
with the appropriate provisions of the Ten State Standards with the additional
requirement that the numbers used for design average and maximum day demand
shall reflect a projection of growth or decline in the number of customers and
in system usage for at least a 10-year period into the future. Also, such
projections shall be updated on an ongoing basis and where they show that
demand will exceed supply the water corporation shall begin measures to control
demand or, if appropriate, secure additional supply.
(d) Monitoring requirements.
(1) Surface sources. Each water corporation
shall submit to the department for approval as soon as possible, but no later
than one year after the effective date of these standards, a plan to monitor
source capacity and establish warning levels for declining source capacity. The
plan's warning levels should be based upon original design demand and
historical source levels so as to provide a warning when the source capacity
falls below design capacity. Once the plan is implemented, which must occur no
later than two years after the effective date of these standards, daily records
shall be kept indicating source level or capacity, date, and location of
reading for each source. The department shall be notified within one business
day whenever the source level falls below the established warning
levels.
(2) Groundwater sources.
Each water corporation having a groundwater source shall equip each of its well
pumps with a timing device which indicates time operated on a 24-hour basis.
Each company shall have the resources to meter the discharge of each well under
normal operating conditions. Readings shall be taken and recorded on a daily
basis and shall indicate the discharge of each well or group of wells on a
common discharge line, time of operation, well identification, date and time of
day recorded. The chart produced by an automatic flow recording device shall be
sufficient to satisfy this requirement. For the purposes of this rule, a group
of wells from which water is withdrawn by a common source of suction shall be
considered a single well. Production meters shall be calibrated every two
years. At least once every three years each water corporation will conduct
tests to determine the specific capacity of each well authorized for use and
the actual capacity of each well's pump. As used in this Part, specific
capacity shall refer to the yield of a well in gallons per minute per foot of
drawdown. The results of these tests will be reported to the department within
10 business days if the specific capacity results indicate a 10 percent or
greater decrease in specific capacity as compared with rated specific capacity
or if the well pump capacity is less than 80 percent of the design rated
capacity. The rated specific capacity of each source will be reported to this
department within three months of enactment of these standards. Any changes in
rated specific capacity of any source must be reported to this department
within 10 business days.
(3)
Additional monitoring requirements - total production. The average day design
demand and maximum day design demand will be reported to this department within
three months of enactment of these standards. The department will also be
notified whenever:
(i) actual maximum day
production exceeds maximum day design demand; or
(ii) actual average day production exceeds
average day design demand on an annual basis.