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EWG's Tap Water Database — 2019 UPDATE

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Polychlorinated biphenyls (PCBs)

Doyon Utilities Jber - Richardson

PCBs are synthetic chemicals banned in the U.S. since the 1970s because of their toxicity. PCBs contaminate water by leaching from landfills and hazardous waste clean-up sites. PCBs increase the risk of cancer. Read More.

Up until the late 1970s, PCBs were used widely as coolants and lubricants in transformers, capacitors and other electrical equipment. Currently, PCBs are widely detected in the general population. They build up and are stored in fatty tissues and fluids such as breast milk, and can be passed on to fetuses and infants during pregnancy and breast-feeding. In human epidemiological studies, PCBs have been associated with an elevated risk of breast and prostate cancers. Infants and children with higher PCB exposures during development score lower on measures of neurological function, ranging from decreased IQ scores to reduced hearing sensitivity. PCBs also affect hormones and damage the immune system.

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND160ND
2013N/A00N/A
2014N/A00N/A
2015ND120ND
2016ND20ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.09 ppb

The EWG Health Guideline of 0.09 ppb for PCBs was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 0.5 ppb

The legal limit for PCBs, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to PCB exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-23PE*2581074ND
2012-01-23PE*2581087ND
2012-01-23PE*2581101ND
2012-01-23PE*2581110ND
2012-01-23PE*2581111ND
2012-04-23PE*2629743ND
2012-04-23PE*2629759ND
2012-04-23PE*2629780ND
2012-04-23PE*2629805ND
2012-07-24PE*2682122ND
2012-07-24PE*2682075ND
2012-07-24PE*2682050ND
2012-11-26PE*2745648ND
2012-11-26PE*2745638ND
2012-11-26PE*2745624ND
2012-11-26PE*2745658ND
2015-02-24PE*3195303ND
2015-02-24PE*3195334ND
2015-02-24PE*3195667ND
2015-06-23PE*3268447ND
2015-06-23PE*3268604ND
2015-06-23PE*3268619ND
2015-09-14PE*3322319ND
2015-09-14PE*3322330ND
2015-09-14PE*3322347ND
2015-12-07PE*3371141ND
2015-12-07PE*3371154ND
2015-12-07PE*3371164ND
2016-03-29PE*3422155ND
2016-03-29PE*3422155XND
2017-03-06PE*3649763ND
2017-05-22PE*3698681ND
2017-08-28PE*3767830ND
2017-10-11PE*3797942ND