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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Montgomery County Water Services - click here to return to the utility page.

According to EWG’s analysis of 2019 lead testing results, this utility complied with federal water quality regulations for lead. Under the federal Lead and Copper Rule, lead concentrations must be below 15 parts per billion (ppb) in 90 percent of households sampled. If this legal limit is exceeded, the water utility must apply measures to control lead leaching from water pipes.

Number of lead samples taken in 2019: 61

Highest level detected in 2019: 13.7 ppb

Levels of lead detected


Complying with the EPA's lead rules doesn't mean that the water is safe for children to drink. The EPA’s recent modeling suggests that lead concentrations in the 3.8 to 15 ppb range can put a formula-fed baby at risk of elevated blood lead levels. In 2009, the California Office of Environmental Health Hazard Assessment set a public health goal level of 0.2 ppb for lead in drinking water to protect against even subtle IQ loss in children.

Lead Results, 2019

Samples in red indicate that the sample is above the EPA action level.

DateLab IDResult
2019-03-122019031204113.7 ppb
2019-03-11201903130408.72 ppb
2019-03-1620190318062ND
2019-03-1220190313054ND
2019-03-1520190315028ND
2019-03-1520190315027ND
2019-03-1520190315026ND
2019-03-1520190315025ND
2019-03-1520190315024ND
2019-03-1420190314026ND
2019-03-1420190314023ND
2019-03-1320190313059ND
2019-03-1320190313057ND
2019-03-1320190313056ND
2019-03-1220190313058ND
2019-03-1220190313055ND
2019-04-0920190410050ND
2019-03-1620190318065ND
2019-03-1720190318078ND
2019-03-1820190318066ND
2019-03-1820190318067ND
2019-03-1820190319052ND
2019-03-1920190319051ND
2019-03-1920190319060ND
2019-03-1920190319061ND
2019-03-1920190319065ND
2019-03-1920190320020ND
2019-03-2020190320021ND
2019-03-2420190325039ND
2019-03-2620190326043ND
2019-04-0120190401026ND
2019-03-1120190312040ND
2019-03-1220190312061ND
2019-03-1120190313044ND
2019-03-1120190313045ND
2019-03-1120190313047ND
2019-03-1120190313050ND
2019-03-1120190313051ND
2019-03-1220190312034ND
2019-03-1220190312035ND
2019-03-1220190312036ND
2019-03-1220190312037ND
2019-03-1220190312038ND
2019-03-1220190312039ND
2019-03-1220190312042ND
2019-03-1220190312044ND
2019-03-1220190312057ND
2019-03-1220190313053ND
2019-03-1220190312062ND
2019-03-1220190312063ND
2019-03-1220190312075ND
2019-03-1220190313035ND
2019-03-1220190313038ND
2019-03-1220190313039ND
2019-03-1220190313041ND
2019-03-1220190313042ND
2019-03-1220190313043ND
2019-03-1220190313046ND
2019-03-1220190313048ND
2019-03-1220190313049ND
2019-03-1220190313052ND
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Read more about lead here.