In June 2003, Irving implemented the delivery of its water from Lake Jim Chapman to
Dallas for treatment and delivery to Irving residents. However, Irving continued to
purchase a reduced water supply that is provided under a wholesale treated water contract
with the City of Dallas. Dallas Water Utilities (DWU) has implemented its own drought
contingency plan that includes water use restrictions that are applicable to its retail
and wholesale customers.
The proposed stages and triggering conditions in the City of Irving Drought Contingency
Plan are similar to provisions established by DWU. The primary responsibility of DWU
is to assure sufficient supplies for its own retail customers. DWU has assured the
City of Irving that it can meet its contractual wholesale obligations to the City
of Irving. However, DWU requires its wholesale customers to impose water use restrictions
equal to or greater than those imposed in Dallas or it may reduce its maximum contracted
wholesale flow rate to the wholesale customer by five (5) percent. In addition, the
DWU drought regulations solicit its wholesale customer cities to enforce similar standards
and procedures in their water systems. For example, if a stage 4, water crisis, occurs,
the customer cities of DWU are expected to reduce their flow rate, as established
by the wholesale contract, equivalent to that imposed on Dallas retail customers.
(Ord. No. 2011-9302, § 1, 12-8-11)
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