Know Your Environment. Protect Your Health.

Perfluorooctanoic acid (PFOA)

Petersburgh Water District

Perfluorooctanoic acid (PFOA) is a member of a group of perfluorinated chemicals used in many consumer products. PFOA and other perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.

 

76

Samples

0

Samples exceeding legal limit (MCL)

49

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201841.3 ppt83ND - 130.0 ppt
201945.5 ppt126ND - 170.0 ppt
202034.7 ppt32ND - 96.0 ppt
202172.6 ppt138ND - 180.0 ppt
202247.2 ppt1711ND - 150.0 ppt
202367.0 ppt2319ND - 180.0 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.09 ppt

The EWG Health Guideline of 0.09 ppt for PFOA was was defined by EPA's final toxicity value from the Office of Water’s Final Human Health Toxicity Assessment. This health guideline protects againat cardiovascular harm and harm to fetal growth.

EPA Maximum Contaminant
Level (MCL): 4 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2018-01-31PB0489013118PRE70.0 ppt
2018-01-31PB0489013118POSTND
2018-01-31PB0439013118MIDND
2018-05-02PB048952118PRE513130.0 ppt
2018-05-02PB04895218POST515ND
2018-10-31WW9878907-POSTND
2018-10-31WW9878906130.0 ppt
2018-10-31WW9878908-MIDND
2019-02-20TCP13-05160.0 ppt
2019-02-20TCP13-04ND
2019-02-21TCP13-03ND
2019-05-29TCP42-01ND
2019-05-29TCP42-02ND
2019-05-29TCP42-03170.0 ppt
2019-10-23TCP80-021.80 ppt
2019-10-23TCP80-03140.0 ppt
2019-10-23TCP80-01ND
2019-12-27TCE02-025.50 ppt
2019-12-27TCE02-01ND
2019-12-27TCE02-0369.0 ppt
2020-01-22TCE14-028.00 ppt
2020-01-22TCE14-0396.0 ppt
2020-01-22TCE14-01ND
2021-01-27PB0489012721 PRE 513180.0 ppt
2021-02-24PB0489022421PRE51346.0 ppt
2021-05-27PB0489052721-MIDND
2021-05-27PB0489052721-PRE64.0 ppt
2021-05-27PB0489052721-POSTND
2021-08-13410-51384-3130.0 ppt
2021-08-13410-51384-2ND
2021-08-13410-51384-1ND
2021-09-24PB0489092421 POSTND
2021-09-24PB0489092421 PRE 513120.0 ppt
2021-10-22410-60482-5150.0 ppt
2021-11-19PB0489111921PRE180.0 ppt
2021-12-10PB0489121021PRE74.0 ppt
2022-01-14PB0489011422 PRE120.0 ppt
2022-03-25410-77921-3150.0 ppt
2022-03-25410-77921-24.90 ppt
2022-03-25410-77921-1ND
2022-06-0622F0422-0216.0 ppt
2022-06-0622G0821-022.10 ppt
2022-06-0622F0422-0111.0 ppt
2022-06-0622F0422-09ND
2022-06-0644F0422-0312.0 ppt
2022-06-24PB0489062422PRE513140.0 ppt
2022-07-29PB0489072922-POSTND
2022-07-29PB0489072922-PRE67.0 ppt
2022-08-26410-96106-2ND
2022-08-26410-96106-6140.0 ppt
2022-10-29410-103907-5140.0 ppt
2022-11-15410-106314-3ND
2022-12-22410-110493-5ND
2023-01-12PB0489011223160.0 ppt
2023-03-30PB048903323 PRE513110.0 ppt
2023-04-27PB0489042723 PRE 513180.0 ppt
2023-04-27PB0489033023 MID5140.480 ppt
2023-04-27PB0489042723 MID5140.700 ppt
2023-05-19PB0489051923-PRE160.0 ppt
2023-05-19PB0489051923-MID0.780 ppt
2023-06-07PB0489060723-PRE130.0 ppt
2023-06-07PB0489060723-MID2.70 ppt
2023-07-28PB0489072823MID2.00 ppt
2023-07-28PB0489072823PRE140.0 ppt
2023-08-07PB0489080723PRE140.0 ppt
2023-08-07PB0489080723MID-22.50 ppt
2023-08-07PB0489080723POST0.470 ppt
2023-09-22PB0489092223POST515ND
2023-09-22PB0489092223PRE5135.30 ppt
2023-09-29PB0489092923POSTND
2023-09-29PB0489092923PRE126.0 ppt
2023-10-27PB0489102723POST515ND
2023-10-27PB0489102723PRE513120.0 ppt
2023-11-15410-151526-5-PRE130.0 ppt
2023-12-20PB0489122023POSTND
2023-12-20PB0489122023PRE130.0 ppt