Lead & CopperTesting

Thank you to the District customers that participated in the lead and copper testing program. This sampling program is required by the Environmental Protection Agency’s Lead and Copper Rule. The Rule requires CWD to collect samples from 30 residences. The number of samples is determined by the population of the system. The number must be split equally between homes that have lead service lines and homes that have copper pipes with lead solder which were installed between 1983 and 1986.

A total of 30 residences were tested. The maximum contaminate level (MCL) for copper is 1.3 mg/L and the MCL for lead is 0.015 mg/L.

The final results of the testing are as follows:


  • 30 of 31 test results were none detected.
  • 1 of 31 test results was 0.012 mg/L
  • No test results exceeded the MCL.


  • 17 of 31 test results were none detected.
  • 14 of 31 test results ranged from 0.052 mg/L to 0.270 mg/L
  • All test results were below the MCL.