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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Mustang SUD - 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: 120

Highest level detected in 2019: 13.0 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
2019-06-26Q194077400513.0 ppb
2019-06-23Q19407740067.90 ppb
2019-06-25Q19407740033.60 ppb
2019-06-23Q19407740413.10 ppb
2019-12-03Q19799320021.60 ppb
2019-12-03Q19799320041.60 ppb
2019-06-26Q19407740151.50 ppb
2019-06-21Q19407740441.30 ppb
2019-06-21Q19407740551.10 ppb
2019-06-26Q19407740041.10 ppb
2019-06-19Q1940774050ND
2019-06-19Q1940774025ND
2019-06-19Q1940774029ND
2019-06-19Q1940774047ND
2019-06-20Q1940774060ND
2019-06-20Q1940774036ND
2019-06-20Q1940774043ND
2019-06-20Q1940774026ND
2019-06-21Q1940774028ND
2019-06-21Q1940774030ND
2019-06-21Q1940774031ND
2019-06-21Q1940774032ND
2019-06-21Q1940774034ND
2019-06-21Q1940774013ND
2019-06-21Q1940774059ND
2019-06-22Q1940774046ND
2019-06-22Q1940774045ND
2019-06-22Q1940774042ND
2019-06-22Q1940774048ND
2019-06-22Q1940774037ND
2019-06-22Q1940774056ND
2019-06-22Q1940774049ND
2019-06-22Q1940774016ND
2019-06-22Q1940774024ND
2019-06-22Q1940774021ND
2019-06-22Q1940774010ND
2019-06-22Q1940774020ND
2019-06-23Q1940774058ND
2019-06-23Q1940774039ND
2019-06-23Q1940774051ND
2019-06-23Q1940774040ND
2019-06-23Q1940774022ND
2019-06-24Q1940774001ND
2019-06-24Q1940774002ND
2019-06-24Q1940774007ND
2019-06-24Q1940774011ND
2019-06-24Q1940774012ND
2019-06-24Q1940774014ND
2019-06-24Q1940774018ND
2019-06-24Q1940774038ND
2019-06-24Q1940774052ND
2019-06-25Q1940774053ND
2019-06-25Q1940774008ND
2019-06-25Q1940774027ND
2019-06-26Q1940774054ND
2019-06-26Q1940774035ND
2019-06-26Q1940774033ND
2019-06-26Q1940774023ND
2019-06-26Q1940774019ND
2019-06-26Q1940774017ND
2019-06-26Q1940774009ND
2019-06-26Q1940774057ND
2019-12-03Q1979932059ND
2019-12-03Q1979932029ND
2019-12-03Q1979932001ND
2019-12-03Q1979932037ND
2019-12-03Q1979932049ND
2019-12-03Q1979932034ND
2019-12-03Q1979932007ND
2019-12-03Q1979932008ND
2019-12-03Q1979932051ND
2019-12-03Q1979932010ND
2019-12-03Q1979932011ND
2019-12-03Q1979932043ND
2019-12-03Q1979932013ND
2019-12-03Q1979932035ND
2019-12-03Q1979932054ND
2019-12-03Q1979932016ND
2019-12-03Q1979932055ND
2019-12-03Q1979932018ND
2019-12-03Q1979932019ND
2019-12-03Q1979932020ND
2019-12-03Q1979932045ND
2019-12-03Q1979932031ND
2019-12-03Q1979932023ND
2019-12-03Q1979932058ND
2019-12-03Q1979932025ND
2019-12-03Q1979932026ND
2019-12-03Q1979932047ND
2019-12-04Q1979932028ND
2019-12-04Q1979932027ND
2019-12-04Q1979932030ND
2019-12-04Q1979932032ND
2019-12-04Q1979932033ND
2019-12-04Q1979932036ND
2019-12-04Q1979932038ND
2019-12-04Q1979932039ND
2019-12-04Q1979932040ND
2019-12-04Q1979932041ND
2019-12-04Q1979932042ND
2019-12-04Q1979932044ND
2019-12-04Q1979932046ND
2019-12-04Q1979932048ND
2019-12-04Q1979932050ND
2019-12-04Q1979932052ND
2019-12-04Q1979932053ND
2019-12-04Q1979932056ND
2019-12-04Q1979932057ND
2019-12-04Q1979932060ND
2019-12-04Q1979932003ND
2019-12-04Q1979932005ND
2019-12-04Q1979932006ND
2019-12-04Q1979932009ND
2019-12-04Q1979932012ND
2019-12-04Q1979932014ND
2019-12-04Q1979932015ND
2019-12-04Q1979932017ND
2019-12-04Q1979932021ND
2019-12-04Q1979932022ND
2019-12-04Q1979932024ND
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Read more about lead here.