Know Your Environment. Protect Your Health.

Perfluoroheptanoic acid (PFHPA)

Riverdale Park Tract Community Services District

Perfluoroheptanoic acid is a member of a group of perfluorinated chemicals used in many consumer products. 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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20191.27 ppt32ND - 2.60 ppt
20200.575 ppt41ND - 2.30 ppt
20210.525 ppt41ND - 2.10 ppt
20221.25 ppt42ND - 2.90 ppt
20230.933 ppt31ND - 2.80 ppt

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1,000 ppt

The EWG Health Guideline of 1,000 ppt for perfluoroheptanoic acid was defined by EPA's recommended application of the toxicity value for PFHxA published in the Integrated Risk Information System’s toxicological review. This health guideline harm to fetal growth and child development.

ppt = parts per trillion

All test results

Date Lab ID Result
2019-06-18CA5000019_003_003-2019061810301.20 ppt
2019-09-10CA5000019_003_003-2019091017452.60 ppt
2019-12-20CA5000019_003_003-201912201101ND
2020-03-30CA5000019_003_003-202003301133ND
2020-04-27CA5000019_003_003-202004271000ND
2020-07-21CA5000019_003_003-202007210800ND
2020-10-07CA5000019_003_003-2020100711402.30 ppt
2021-01-27CA5000019_003_003-2021012709152.10 ppt
2021-04-14CA5000019_003_003-202104140929ND
2021-07-21CA5000019_003_003-202107210841ND
2021-10-27CA5000019_003_003-202110271040ND
2022-01-11CA5000019_003_003-202201111000ND
2022-04-11CA5000019_003_003-2022041112462.10 ppt
2022-07-13CA5000019_003_003-2022071310102.90 ppt
2022-10-03CA5000019_003_003-202210031350ND
2023-01-03CA5000019_003_003-202301031254ND
2023-05-22CA5000019_003_003-202305221000ND
2023-07-11CA5000019_003_003-2023071114002.80 ppt