Water Supply Planning 101

““Water Supply Planning Water Supply Planning
in North Carolinain North Carolina””
Where and when is water used?
How much water will be used in the
future?
How will future demands be
managed?
NCGS 143NCGS 143 --355 (m) 355 (m)
In order to assure the availability of In order to assure the availability of
adequate supplies of good quality water adequate supplies of good quality water
to protect the public health and to support to protect the public health and to support
desirable economic growth, the desirable economic growth, the
Department shall develop a State water Department shall develop a State water
supply plan.supply plan.
Local Water Supply Plans
••Units of local government that provide or Units of local government that provide or
plan to provide public water service plan to provide public water service
••Community water systems that regularly Community water systems that regularly
serve 1,000 or more service connections serve 1,000 or more service connections
or 3,000 or more individuals or 3,000 or more individuals
••645 Plans submitted 645 Plans submitted
••Revised every 5 yearsRevised every 5 years
••5,937,000 persons served (2002)5,937,000 persons served (2002)
••71% of NC residents (2002)71% of NC residents (2002)
Service Areas
Annual Average and Monthly Annual Average and Monthly
Water Use DataWater Use Data
Estimates of Future DemandsEstimates of Future Demands
Water Withdrawal Registration
143143--215.22H. Registration of water withdrawals and 215.22H. Registration of water withdrawals and
transferstransfers
NonNon--agriculture threshold 100,000 gallons per day or agriculture threshold 100,000 gallons per day or
more of water from the surface or ground waters of the more of water from the surface or ground waters of the
State State
Agriculture threshold 1,000,000 gallons per day or Agriculture threshold 1,000,000 gallons per day or
more of water for activities directly related or incidental more of water for activities directly related or incidental
to the production of crops, fruits, vegetables, to the production of crops, fruits, vegetables,
ornamental and flowering plants, dairy products, ornamental and flowering plants, dairy products,
livestock, poultry, and other agricultural productslivestock, poultry, and other agricultural products
Annual Average and Monthly
Water Use
Registrations as of
2004
••Agriculture Agriculture 192192
••Aquaculture Aquaculture 5454
••IndustrialIndustrial 117117
••GolfGolf 7171
••MiningMining 136136
••Public Water SystemsPublic Water Systems 719719
••ThermoelectricThermoelectric 1515
Water use
data are
combined
with water
resources
data in a
river basin
model.