Perfluorohexanoic Acid (PFHxA)
Apple Valley
Perfluorohexanoic 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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | 0.613 ppt | 25 | 13 | ND - 2.10 ppt |
| 2022 | 0.865 ppt | 29 | 23 | ND - 2.60 ppt |
| 2023 | 0.843 ppt | 63 | 47 | ND - 2.70 ppt |
| 2024 | ND | 1 | 0 | ND |
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 perfluorohexanoic acid was defined by EPA's toxicity value published in the Integrated Risk Information System's toxicological review. This health guideline protects against harm to fetal growth and child development.
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2020-03-16 | 20C0740-01 | ND |
| 2021-04-21 | 21D1187-01 | ND |
| 2021-04-21 | 21D1187-01 | 0.980 ppt |
| 2021-04-21 | 21D1187-02 | ND |
| 2021-04-21 | 21D1187-02 | 0.900 ppt |
| 2021-04-21 | 21D1187-03 | 0.890 ppt |
| 2021-04-21 | 21D1187-03 | ND |
| 2021-04-21 | 21D1187-04 | 0.880 ppt |
| 2021-04-21 | 21D1187-05 | ND |
| 2021-04-21 | 21D1187-05 | ND |
| 2021-04-21 | 21D1187-06 | ND |
| 2021-05-17 | 21E1082-01 | ND |
| 2021-05-17 | 21E1082-03 | 0.830 ppt |
| 2021-05-17 | 21E1082-04 | ND |
| 2021-05-17 | 21E1082-06 | ND |
| 2021-08-31 | 21H2581-01 | ND |
| 2021-08-31 | 21H2581-02 | 0.890 ppt |
| 2021-08-31 | 21H2581-03 | 1.80 ppt |
| 2021-08-31 | 21H2581-04 | ND |
| 2021-08-31 | 21H2581-05 | 1.30 ppt |
| 2021-08-31 | 21H2581-06 | 1.70 ppt |
| 2021-08-31 | 21H2581-07 | 0.950 ppt |
| 2021-08-31 | 21H2581-08 | 1.000 ppt |
| 2021-11-30 | 21K1451-01 | 2.10 ppt |
| 2021-11-30 | 21K1451-02 | 1.10 ppt |
| 2021-11-30 | 21K1451-03 | ND |
| 2022-09-28 | 22I2209-02 | 0.730 ppt |
| 2022-09-28 | 22I2209-03 | ND |
| 2022-09-28 | 22I2209-04 | 0.650 ppt |
| 2022-09-28 | 22I2209-08 | 1.20 ppt |
| 2022-09-28 | 22I2209-09 | 0.610 ppt |
| 2022-09-28 | 22I2209-10 | 1.50 ppt |
| 2022-09-28 | 22I2209-12 | 1.30 ppt |
| 2022-09-28 | 22I2209-13 | 0.770 ppt |
| 2022-09-28 | 22I2209-14 | 1.000 ppt |
| 2022-09-28 | 22I2209-15 | 0.710 ppt |
| 2022-09-28 | 22I2209-16 | ND |
| 2022-09-28 | 22I2209-17 | ND |
| 2022-09-28 | 22I2209-18 | 1.20 ppt |
| 2022-09-28 | 22I2209-19 | 0.980 ppt |
| 2022-09-28 | 22I2209-21 | 2.60 ppt |
| 2022-12-08 | 22L0340-01 | 0.970 ppt |
| 2022-12-08 | 22L0340-02 | 2.00 ppt |
| 2022-12-08 | 22L0340-03 | ND |
| 2022-12-08 | 22L0340-04 | 0.670 ppt |
| 2022-12-08 | 22L0340-05 | ND |
| 2022-12-08 | 22L0340-06 | 1.10 ppt |
| 2022-12-08 | 22L0340-07 | 0.950 ppt |
| 2022-12-08 | 22L0340-08 | 1.40 ppt |
| 2022-12-08 | 22L0340-09 | 0.780 ppt |
| 2022-12-08 | 22L0340-10 | 1.10 ppt |
| 2022-12-08 | 22L0340-11 | 0.570 ppt |
| 2022-12-08 | 22L0340-12 | ND |
| 2022-12-08 | 22L0340-13 | 1.10 ppt |
| 2022-12-08 | 22L0340-14 | 1.20 ppt |
| 2023-01-11 | 23A0323-01 | 0.560 ppt |
| 2023-01-11 | 23A0323-02 | 1.60 ppt |
| 2023-01-11 | 23A0323-03 | ND |
| 2023-01-11 | 23A0323-04 | 0.780 ppt |
| 2023-01-11 | 23A0323-05 | ND |
| 2023-01-11 | 23A0323-06 | 1.20 ppt |
| 2023-01-11 | 23A0323-07 | 0.770 ppt |
| 2023-01-11 | 23A0323-08 | 1.20 ppt |
| 2023-01-11 | 23A0323-09 | 0.730 ppt |
| 2023-01-11 | 23A0323-10 | 0.990 ppt |
| 2023-01-11 | 23A0323-11 | ND |
| 2023-01-11 | 23A0323-12 | 1.30 ppt |
| 2023-01-11 | 23A0323-14 | 1.60 ppt |
| 2023-03-24 | 23C1229-01 | 0.470 ppt |
| 2023-03-24 | 23C1229-02 | 0.620 ppt |
| 2023-04-19 | 23D1147-01 | 1.10 ppt |
| 2023-04-19 | 23D1147-02 | 1.50 ppt |
| 2023-04-19 | 23D1147-03 | ND |
| 2023-04-19 | 23D1147-04 | 0.700 ppt |
| 2023-04-19 | 23D1147-05 | ND |
| 2023-04-19 | 23D1147-06 | 1.10 ppt |
| 2023-04-19 | 23D1147-07 | 0.900 ppt |
| 2023-04-19 | 23D1147-08 | 1.50 ppt |
| 2023-04-19 | 23D1147-09 | 1.40 ppt |
| 2023-04-19 | 23D1147-10 | 1.30 ppt |
| 2023-04-19 | 23D1147-11 | 0.660 ppt |
| 2023-04-19 | 23D1147-12 | ND |
| 2023-04-19 | 23D1147-13 | 1.10 ppt |
| 2023-04-19 | 23D1147-14 | 1.40 ppt |
| 2023-04-19 | 23D1147-15 | 0.610 ppt |
| 2023-05-24 | 23E2662-01 | ND |
| 2023-05-24 | 23E2662-02 | 0.690 ppt |
| 2023-06-20 | 23F1597-01 | 0.660 ppt |
| 2023-08-23 | 23H2420-01 | 0.800 ppt |
| 2023-08-23 | 23H2420-02 | 2.40 ppt |
| 2023-08-23 | 23H2420-03 | 0.890 ppt |
| 2023-08-23 | 23H2420-04 | 1.50 ppt |
| 2023-08-23 | 23H2420-05 | 1.40 ppt |
| 2023-08-23 | 23H2420-06 | 0.610 ppt |
| 2023-08-23 | 23H2420-07 | 1.30 ppt |
| 2023-08-23 | 23H2420-08 | 1.10 ppt |
| 2023-08-23 | 23H2420-09 | 1.20 ppt |
| 2023-08-23 | 23H2420-10 | 0.530 ppt |
| 2023-08-24 | 23H2549-01 | ND |
| 2023-08-24 | 23H2549-02 | ND |
| 2023-08-24 | 23H2549-03 | ND |
| 2023-08-24 | 23H2549-04 | 0.970 ppt |
| 2023-08-24 | 23H2549-05 | 0.980 ppt |
| 2023-10-23 | 23J1144-01 | 1.40 ppt |
| 2023-10-23 | 23J1144-02 | 2.70 ppt |
| 2023-10-23 | 23J1144-03 | ND |
| 2023-10-23 | 23J1144-04 | 0.680 ppt |
| 2023-10-23 | 23J1144-05 | ND |
| 2023-10-23 | 23J1144-06 | 1.20 ppt |
| 2023-10-23 | 23J1144-07 | 0.900 ppt |
| 2023-10-23 | 23J1144-08 | 1.70 ppt |
| 2023-10-23 | 23J1144-09 | ND |
| 2023-10-23 | 23J1144-10 | 1.30 ppt |
| 2023-10-23 | 23J1144-11 | ND |
| 2023-10-23 | 23J1144-12 | ND |
| 2023-10-23 | 23J1144-13 | 1.80 ppt |
| 2023-10-23 | 23J1144-14 | 1.30 ppt |
| 2023-10-23 | 23J1144-15 | ND |
| 2024-04-17 | 32401112001 | ND |