Consumer Information

Required Irrigation Backflow Testing

Irrigation system backflow prevention assembly testing is required by Forney Lake Water Supply Corporation to protect our customers from cross contamination. It must be performed annually by a State licensed certified backflow tester registered with Forney Lake Water Supply Corporation. The homeowner (water customer) is responsible for directly contacting the certified backflow tester, arranging the test and forwarding the original hardcopy test results to Forney Lake Water Supply by May 1, 2020. Additional information will be included in your water bill.

Certified Backflow Tester List

Backflow Inspection Letter (pdf)


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  Rates Water usage rates
  Board of Directors Application Microsoft Word Format
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Forms (pdf format)
  New Meter Service Agreement Cover letter, service agreement, backflow prevention assembly test and maintenance report, and customer service inspection certificate.
  Right of Way Easement Form for right of way easements
  Drought Contingency Plan Plan for water conservation during drought conditions.
  Backflow Inspection Letter Customer response letter for Backflow Inspection
  NTMWD North Texas Municipal Water District
  TCEQ Texas Commission on Environmental Quality
  City of Rockwall City of Rockwall Site