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EWG's Tap Water Database — 2021 UPDATE

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1,2-Dichloropropane

North Penn Water Authority

1,2-Dichloropropane is a volatile carcinogenic solvent discharged from chemical factories and landfills. It also contaminates farmland due to its former use as a soil fumigant. Read More.

The insecticide and fumigant uses of 1,2-dichloropropane were discontinued in the 1980s, but it is still used as an industrial solvent. The California public health goal of 0.5 parts per billion, set to protect against cancer, is 10 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion. 1,2-Dichloropropane can also damage the nervous system, liver, kidneys, and digestive and respiratory systems.

Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

310

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND510ND
2015ND470ND
2016ND600ND
2017ND590ND
2018ND480ND
2019ND450ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for 1,2-dichloropropane 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) 5 ppb

The legal limit for 1,2-dichloropropane, 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.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-2020140222ND
2014-01-2020140223ND
2014-01-2020140224ND
2014-01-2020140225ND
2014-02-1220140545ND
2014-02-1220140546ND
2014-02-1220140542ND
2014-02-1220140543ND
2014-02-1220140544ND
2014-02-1220140547ND
2014-03-0520140816ND
2014-03-0520140817ND
2014-03-0520140818ND
2014-03-0520140819ND
2014-03-0520140820ND
2014-04-0220141122ND
2014-04-0220141123ND
2014-04-0220141125ND
2014-04-0220141124ND
2014-05-1920141698ND
2014-05-1920141699ND
2014-05-1920141700ND
2014-05-1920141701ND
2014-06-0420141932ND
2014-06-0420141933ND
2014-06-0420141935ND
2014-06-0420141936ND
2014-06-0420141934ND
2014-07-1620142445ND
2014-07-1620142446ND
2014-07-1620142447ND
2014-08-1820142827ND
2014-08-1820142828ND
2014-08-1820142824ND
2014-08-1820142825ND
2014-08-1820142826ND
2014-08-1820142829ND
2014-09-0820143077ND
2014-09-0820143078ND
2014-09-0820143079ND
2014-09-0820143080ND
2014-09-0820143081ND
2014-11-1014110622-001ND
2014-11-1014110622-002ND
2014-11-1014110622-003ND
2014-11-1014110622-004ND
2014-12-0820144185ND
2014-12-0820144186ND
2014-12-0820144188ND
2014-12-0820144189ND
2014-12-0820144187ND
2015-01-1912287159ND
2015-01-1912287180ND
2015-01-1912287201ND
2015-01-1912287222ND
2015-02-0912402106ND
2015-02-0912402127ND
2015-02-0912402043ND
2015-02-0912402064ND
2015-02-0912402085ND
2015-02-0912402148ND
2015-04-2012633464ND
2015-04-2012633485ND
2015-04-2012633527ND
2015-04-2012633506ND
2015-06-1512882978ND
2015-07-1313013073ND
2015-07-1313013099ND
2015-07-1313013125ND
2015-07-1313013151ND
2015-07-1313013177ND
2015-08-1713135674ND
2015-08-1713135695ND
2015-08-1713135737ND
2015-08-1713135758ND
2015-08-1713135716ND
2015-08-1713135779ND
2015-09-1413264716ND
2015-09-1413264742ND
2015-09-1413264768ND
2015-10-0513389220ND
2015-10-0513389241ND
2015-10-0513389283ND
2015-10-0513389262ND
2015-11-1113514211ND
2015-11-1113514148ND
2015-11-1113514169ND
2015-11-1113514190ND
2015-11-1113514232ND
2015-12-0213633352ND
2015-12-0213633378ND
2015-12-0213633404ND
2015-12-0213633430ND
2015-12-0213633456ND
2015-12-0213633482ND
2015-12-0913633508ND
2015-12-0913633308ND
2015-12-1413633329ND
2016-01-1813753171ND
2016-01-1813753192ND
2016-01-1813753213ND
2016-01-1813753234ND
2016-02-1713870708ND
2016-02-1713870729ND
2016-02-1713870645ND
2016-02-1713870666ND
2016-02-1713870687ND
2016-02-1713870750ND
2016-03-0213986059ND
2016-03-0213986085ND
2016-03-0213986111ND
2016-03-0213986137ND
2016-03-0213986163ND
2016-04-1814102976ND
2016-04-1814102997ND
2016-04-1814103039ND
2016-04-1814103018ND
2016-05-1614250811ND
2016-05-1614250832ND
2016-05-1614250853ND
2016-05-1614250874ND
2016-06-0614405896ND
2016-06-0614405923ND
2016-06-0614405977ND
2016-06-0614406004ND
2016-06-0614405950ND
2016-07-1814569957ND
2016-07-1814569978ND
2016-07-1814569999ND
2016-07-1814570020ND
2016-08-0114735677ND
2016-08-0114735698ND
2016-08-0114735614ND
2016-08-0114735635ND
2016-08-0114735656ND
2016-08-0114735719ND
2016-08-2314907958ND
2016-09-0714908085ND
2016-09-0714908112ND
2016-09-0714908139ND
2016-09-0714908166ND
2016-09-0714908193ND
2016-10-2415075734ND
2016-10-2415075755ND
2016-10-2415075797ND
2016-10-2415075776ND
2016-11-1415226171ND
2016-11-1415226087ND
2016-11-1415226108ND
2016-11-1415226213ND
2016-11-1415226129ND
2016-11-1415226192ND
2016-11-1415226150ND
2016-12-0515372196ND
2016-12-0515372217ND
2016-12-0515372238ND
2016-12-0515372259ND
2016-12-0515372280ND
2017-01-2315517785ND
2017-01-2315517806ND
2017-01-2315517827ND
2017-01-2315517848ND
2017-02-2215655944ND
2017-02-2315656028ND
2017-02-2315656049ND
2017-02-2315655965ND
2017-02-2315655986ND
2017-02-2315656007ND
2017-02-2315656070ND
2017-03-2215796090ND
2017-03-2215796117ND
2017-03-2215796144ND
2017-03-2215796171ND
2017-03-2215796198ND
2017-04-1715937482ND
2017-04-1715937503ND
2017-04-1715937545ND
2017-04-1715937524ND
2017-05-1516094577ND
2017-05-1516094598ND
2017-05-1516094661ND
2017-05-1516094619ND
2017-05-1516094640ND
2017-07-0516413118ND
2017-07-0516413139ND
2017-07-0516413160ND
2017-07-1716413715ND
2017-07-1716413736ND
2017-07-1716413757ND
2017-07-1716413778ND
2017-08-0216566175ND
2017-08-0216566196ND
2017-08-0216566070ND
2017-08-0216566091ND
2017-08-0216566154ND
2017-08-0216566112ND
2017-08-0216566133ND
2017-09-1116726755ND
2017-09-1116726782ND
2017-09-1116726809ND
2017-09-1116726836ND
2017-09-1116726863ND
2017-10-1616880086ND
2017-10-1616880107ND
2017-10-1616880149ND
2017-10-1616880128ND
2017-11-0117023342ND
2017-11-0117023363ND
2017-11-0117023426ND
2017-11-0117023384ND
2017-11-0117023405ND
2017-12-0417161964ND
2017-12-0417161985ND
2017-12-0417162027ND
2017-12-0417162048ND
2017-12-0417162006ND
2017-12-0417162069ND
2018-01-2220180293ND
2018-01-2220180294ND
2018-01-2220180295ND
2018-01-2220180296ND
2018-02-0520180455ND
2018-02-0520180456ND
2018-02-0520180452ND
2018-02-0520180453ND
2018-02-0520180454ND
2018-02-0520180457ND
2018-03-2020181073ND
2018-03-2020181074ND
2018-03-2020181075ND
2018-03-2020181076ND
2018-04-1620181445ND
2018-04-1620181446ND
2018-04-1620181448ND
2018-04-1620181447ND
2018-05-0220181740ND
2018-05-0220181741ND
2018-05-0220181744ND
2018-05-0220181742ND
2018-05-0220181743ND
2018-06-1820182322ND
2018-06-1820182324ND
2018-06-1820182325ND
2018-06-1820182323ND
2018-06-1820182326ND
2018-06-1820182327ND
2018-07-1620182699ND
2018-07-1620182700ND
2018-07-1620182701ND
2018-08-0120182922ND
2018-08-0120182923ND
2018-08-0120182920ND
2018-08-0120182921ND
2018-08-0120182924ND
2018-09-0520183429ND
2018-09-0520183431ND
2018-09-0520183430ND
2018-09-0520183432ND
2018-10-1520183924ND
2018-10-1520183926ND
2018-10-1520183925ND
2018-12-038121626-01ND
2018-12-038121626-03ND
2018-12-038121626-02ND
2018-12-108122542-01ND
2019-01-2120190220ND
2019-02-0420190410ND
2019-02-0420190411ND
2019-02-0420190409ND
2019-02-0420190412ND
2019-02-0720190528ND
2019-03-0420190828ND
2019-03-0420190829ND
2019-03-0420190830ND
2019-04-1720191516ND
2019-04-1720191518ND
2019-04-1720191517ND
2019-05-0220191674ND
2019-05-0220191675ND
2019-05-0220191678ND
2019-05-0220191676ND
2019-05-0220191677ND
2019-07-1520192723ND
2019-07-1520192724ND
2019-07-1520192727ND
2019-07-1520192728ND
2019-07-1520192725ND
2019-07-1520192726ND
2019-08-0520192977ND
2019-08-0520192978ND
2019-08-0520192976ND
2019-08-0520192979ND
2019-09-0420193493ND
2019-09-0420193494ND
2019-09-0420193495ND
2019-09-0420193496ND
2019-10-2120194146ND
2019-10-2120194147ND
2019-10-2120194148ND
2019-11-0420194264ND
2019-11-0420194265ND
2019-11-0420194267ND
2019-11-0420194266ND
2019-11-0420194268ND
2019-11-0420194269ND
2019-12-0220194693ND
2019-12-0220194694ND
2019-12-0220194696ND
2019-12-0220194697ND
2019-12-0220194695ND