Menu

EWG's Tap Water Database — 2021 UPDATE

Donate
water fountain

What About Lead?

CTWC - Unionville System - 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: 38

Highest level detected in 2019: 32.0 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
2019-08-01PB 20054325832.0 ppb
2019-07-22PB 20054175711.0 ppb
2019-07-18PB 2005417836.00 ppb
2019-07-18PB 2005417895.00 ppb
2019-07-18PB 2005417854.00 ppb
2019-07-18PB 2005417803.00 ppb
2019-07-16PB 2005417902.00 ppb
2019-07-25PB 2005423862.00 ppb
2019-07-31PB 2005432592.00 ppb
2019-07-18PB 2005417882.00 ppb
2019-08-01PB 2005432642.00 ppb
2019-07-18PB 2005417841.000 ppb
2019-07-17PB 2005417941.000 ppb
2019-07-24PB 2005423891.000 ppb
2019-08-01PB 200543261ND
2019-08-01PB 200543262ND
2019-08-01PB 200543263ND
2019-08-01PB 200543257ND
2019-07-31PB 200543266ND
2019-07-31PB 200543260ND
2019-08-01PB 200543265ND
2019-08-05PB 200543746ND
2019-07-31PB 200543751ND
2019-08-06PB 200543749ND
2019-07-25PB 200542388ND
2019-07-24PB 200542390ND
2019-07-24PB 200542387ND
2019-07-19PB 200541756ND
2019-07-18PB 200541787ND
2019-07-18PB 200541786ND
2019-07-18PB 200541782ND
2019-07-18PB 200541827ND
2019-07-18PB 200541826ND
2019-07-18PB 200541825ND
2019-07-18PB 200541824ND
2019-07-17PB 200541793ND
2019-07-16PB 200541792ND
2019-07-16PB 200541791ND
MORE
LESS

Read more about lead here.