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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

City of Denton - 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: 50

Highest level detected in 2019: 1.8 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
2019-06-20Q19386720091.80 ppb
2019-06-10Q19369010061.50 ppb
2019-06-25Q19406440091.40 ppb
2019-06-06Q19369010011.20 ppb
2019-06-24Q19406440041.20 ppb
2019-06-26Q19423330031.20 ppb
2019-06-25Q19406440071.10 ppb
2019-06-07Q19369010021.000 ppb
2019-07-10Q19588870021.000 ppb
2019-07-02Q19423330041.000 ppb
2019-07-02Q1942333006ND
2019-08-19Q1958887009ND
2019-06-25Q1940644008ND
2019-08-19Q1958887010ND
2019-06-26Q1942333002ND
2019-08-15Q1958887007ND
2019-06-26Q1940644010ND
2019-07-02Q1942333005ND
2019-08-15Q1958887008ND
2019-08-15Q1958887006ND
2019-07-03Q1942333008ND
2019-07-03Q1942333007ND
2019-07-04Q1942333009ND
2019-07-07Q1942333010ND
2019-07-07Q1958887001ND
2019-07-13Q1958887003ND
2019-07-15Q1958887004ND
2019-08-12Q1958887005ND
2019-06-12Q1936901010ND
2019-06-07Q1936901003ND
2019-06-08Q1936901004ND
2019-06-10Q1936901005ND
2019-06-11Q1936901008ND
2019-06-11Q1936901007ND
2019-06-12Q1936901009ND
2019-06-12Q1938672004ND
2019-06-12Q1938672003ND
2019-06-12Q1938672002ND
2019-06-12Q1938672001ND
2019-06-25Q1940644006ND
2019-06-14Q1938672005ND
2019-06-16Q1938672006ND
2019-06-16Q1938672007ND
2019-06-17Q1938672008ND
2019-06-20Q1938672010ND
2019-06-21Q1940644001ND
2019-06-22Q1940644002ND
2019-06-23Q1942333001ND
2019-06-24Q1940644003ND
2019-06-24Q1940644005ND
MORE
LESS

Read more about lead here.