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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

North Nelson Water District - 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: 122

Highest level detected in 2019: 9.0 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
2019-04-25974926189.00 ppb
2019-10-30979235266.00 ppb
2019-04-2497492624ND
2019-04-2597492601ND
2019-04-2597492602ND
2019-04-2597492603ND
2019-04-2597492604ND
2019-04-2597492605ND
2019-04-2597492606ND
2019-04-2597492607ND
2019-04-2597492608ND
2019-04-2597492609ND
2019-04-2597492610ND
2019-04-2597492611ND
2019-04-2597492612ND
2019-04-2597492613ND
2019-04-2597492614ND
2019-04-2597492615ND
2019-04-2597492616ND
2019-04-2597492617ND
2019-04-2597492619ND
2019-04-2597492620ND
2019-04-2597492621ND
2019-04-2597492622ND
2019-04-2597492623ND
2019-04-2597492625ND
2019-04-2597492626ND
2019-04-2597492627ND
2019-04-2597492628ND
2019-04-2597492629ND
2019-04-2597492630ND
2019-04-2597492631ND
2019-04-2597492632ND
2019-04-2597492633ND
2019-04-26975501201ND
2019-04-26975501202ND
2019-04-26975501203ND
2019-04-26975501204ND
2019-05-0897519601ND
2019-05-0897519602ND
2019-05-0897519603ND
2019-05-0897519604ND
2019-05-0897519605ND
2019-05-0897519606ND
2019-05-0897519607ND
2019-05-0897519608ND
2019-05-0897519609ND
2019-05-0897519610ND
2019-05-0897519612ND
2019-05-0897519613ND
2019-05-0897519614ND
2019-05-0897519615ND
2019-05-0897519616ND
2019-05-0897519617ND
2019-05-0897519618ND
2019-05-0897519619ND
2019-05-0897519620ND
2019-05-0897519621ND
2019-05-0897519622ND
2019-05-0897519623ND
2019-05-0897519625ND
2019-05-0897539901ND
2019-05-0997539902ND
2019-10-2497918601ND
2019-10-2497918602ND
2019-10-2497918603ND
2019-10-2497918604ND
2019-10-2497918605ND
2019-10-2497918606ND
2019-10-2497918607ND
2019-10-2497918608ND
2019-10-2497918609ND
2019-10-2497918610ND
2019-10-2497918611ND
2019-10-2497918612ND
2019-10-2497918613ND
2019-10-2497918614ND
2019-10-2497918615ND
2019-10-2497918616ND
2019-10-2497918617ND
2019-10-2497918618ND
2019-10-2497918619ND
2019-10-2497918621ND
2019-10-2497918622ND
2019-10-2497918623ND
2019-10-2497918624ND
2019-10-2497918625ND
2019-10-2497918626ND
2019-10-2497918627ND
2019-10-2497918628ND
2019-10-2497918629ND
2019-10-2697923521ND
2019-10-2697923522ND
2019-10-2997923507ND
2019-10-2997923508ND
2019-10-2997923509ND
2019-10-2997923510ND
2019-10-2997923518ND
2019-10-2997923530ND
2019-10-3097923501ND
2019-10-3097923502ND
2019-10-3097923503ND
2019-10-3097923504ND
2019-10-3097923505ND
2019-10-3097923506ND
2019-10-3097923511ND
2019-10-3097923512ND
2019-10-3097923513ND
2019-10-3097923514ND
2019-10-3097923515ND
2019-10-3097923516ND
2019-10-3097923517ND
2019-10-3097923519ND
2019-10-3097923520ND
2019-10-3097923524ND
2019-10-3097923527ND
2019-10-3097923528ND
2019-10-3097923529ND
2019-10-3097923531ND
2019-11-1097947402ND
2019-11-2297978301ND
2019-11-2297978302ND
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Read more about lead here.