New York Codes, Rules and Regulations › Title 16 - DEPARTMENT OF PUBLIC SERVICE › Chapter V - WATERWORKS CORPORATIONS › Subchapter A - SERVICE › Part 503 - Service Standards › Section 503.4 - Quantity of supply

Current through Register Vol. 46, No. 28, July 10, 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.