EPA LCR… “Lead and Copper enters drinking water primarily through plumbing materials. Exposure to lead and copper may cause health problems ranging from stomach distress to brain damage.

Drinking water systems must be monitored at customer taps. If lead concentrations exceed the action level of 15 ppb or copper concentration exceed an action level of 1.3 ppm, the system must undertake a number of additional actions to control corrosion, If the action level is exceeded, the system must also inform the public about steps they should take to protect their health and may have to replace lead service lines under their control.”

ESL provides comprehensive testing capabilities for lead and copper testing for public water systems, residential sampling, schools and daycare centers. Sample kits are also available along with detailed instructions for sampling at the first-draw.

For additional information see:
https://www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water
https://www.epa.gov/dwreginfo/lead-drinking-water-schools-and-childcare-