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EWG's Tap Water Database — 2021 UPDATE

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What About Lead?

Horsham Water&sewer Authority - 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: 67

Highest level detected in 2019: 1,800.0 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
2019-10-22AG371261,800.0 ppb
2019-10-23AG3713515.0 ppb
2019-10-23AG3713313.0 ppb
2019-10-23AG371226.40 ppb
2019-10-23AG371275.30 ppb
2019-10-30AG377045.20 ppb
2019-10-23AG371284.20 ppb
2019-10-23AG371372.90 ppb
2019-10-23AG371312.60 ppb
2019-10-23AG371232.60 ppb
2019-10-30AG377102.50 ppb
2019-11-13AG396012.10 ppb
2019-11-06AG38863ND
2019-11-05AG38870ND
2019-11-06AG38864ND
2019-11-06AG38862ND
2019-11-06AG38865ND
2019-11-06AG38879ND
2019-11-05AG38875ND
2019-11-06AG38867ND
2019-11-06AG38868ND
2019-11-06AG38869ND
2019-11-06AG38871ND
2019-12-11AG42678ND
2019-11-06AG38872ND
2019-11-06AG38873ND
2019-11-06AG38874ND
2019-11-06AG38876ND
2019-11-06AG38877ND
2019-11-06AG38878ND
2019-11-13AG39597ND
2019-11-13AG39598ND
2019-11-13AG39599ND
2019-11-13AG39600ND
2019-11-13AG39602ND
2019-12-10AG42676ND
2019-12-11AG42677ND
2019-12-11AG42675ND
2019-10-22AG37120ND
2019-10-30AG37701ND
2019-10-22AG37129ND
2019-10-22AG37130ND
2019-10-22AG37136ND
2019-10-23AG37121ND
2019-10-23AG37124ND
2019-10-23AG37125ND
2019-10-23AG37138ND
2019-10-23AG37132ND
2019-10-23AG37134ND
2019-10-30AG37696ND
2019-10-30AG37697ND
2019-10-30AG37698ND
2019-10-30AG37700ND
2019-11-05AG38866ND
2019-10-30AG37702ND
2019-10-30AG37703ND
2019-10-30AG37705ND
2019-10-30AG37706ND
2019-10-30AG37707ND
2019-10-30AG37708ND
2019-10-30AG37709ND
2019-10-30AG37711ND
2019-10-30AG37712ND
2019-10-30AG37713ND
2019-10-30AG37714ND
2019-10-30AG37715ND
2019-10-30AG37716ND
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Read more about lead here.