Perfluorooctanoic acid (PFOA)
Warminster Municipal Authority
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.
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 | ND | 22 | 0 | ND |
| 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 | 0.255 ppt | 130 | 8 | ND - 8.50 ppt |
| 2021 | 7.50 ppt | 40 | 4 | ND - 82.0 ppt |
| 2022 | 22.1 ppt | 142 | 55 | ND - 120.0 ppt |
| 2023 | 11.4 ppt | 85 | 16 | ND - 70.0 ppt |
| 2024 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2020-01-08 | 24998701.00 | ND |
| 2020-01-08 | 24998703.00 | ND |
| 2020-01-08 | 24998623.00 | ND |
| 2020-01-08 | 24998625.00 | ND |
| 2020-01-08 | 24998749.00 | ND |
| 2020-01-08 | 24998751.00 | ND |
| 2020-01-22 | 24998707.00 | ND |
| 2020-01-22 | 24998709.00 | ND |
| 2020-01-22 | 24998629.00 | ND |
| 2020-01-22 | 24998631.00 | ND |
| 2020-02-05 | 24998713.00 | 2.20 ppt |
| 2020-02-05 | 24998715.00 | ND |
| 2020-02-05 | 24998635.00 | ND |
| 2020-02-05 | 24998637.00 | ND |
| 2020-02-19 | 24998719.00 | 3.00 ppt |
| 2020-02-19 | 24998721.00 | ND |
| 2020-02-19 | 24998641.00 | ND |
| 2020-02-19 | 24998643.00 | ND |
| 2020-02-19 | 24998754.00 | ND |
| 2020-02-19 | 26098972.00 | ND |
| 2020-03-04 | 24998647.00 | ND |
| 2020-03-04 | 24998649.00 | ND |
| 2020-03-04 | 24998758.00 | ND |
| 2020-03-04 | 24998760.00 | ND |
| 2020-03-18 | 24998653.00 | ND |
| 2020-03-18 | 24998655.00 | ND |
| 2020-03-18 | 24998764.00 | ND |
| 2020-03-18 | 24998766.00 | ND |
| 2020-04-01 | 24998659.00 | ND |
| 2020-04-01 | 24998661.00 | ND |
| 2020-04-01 | 24998770.00 | ND |
| 2020-04-01 | 24998772.00 | ND |
| 2020-04-15 | 24998665.00 | ND |
| 2020-04-15 | 24998667.00 | ND |
| 2020-04-15 | 24998776.00 | ND |
| 2020-04-15 | 24998778.00 | ND |
| 2020-05-06 | 24998671.00 | ND |
| 2020-05-06 | 24998673.00 | ND |
| 2020-05-06 | 24998782.00 | ND |
| 2020-05-06 | 24998784.00 | ND |
| 2020-05-20 | 24998725.00 | ND |
| 2020-05-20 | 24998727.00 | ND |
| 2020-05-20 | 24998677.00 | ND |
| 2020-05-20 | 24998679.00 | ND |
| 2020-05-20 | 24998788.00 | ND |
| 2020-05-20 | 24998790.00 | ND |
| 2020-06-03 | 24998731.00 | ND |
| 2020-06-03 | 24998733.00 | ND |
| 2020-06-03 | 24998683.00 | ND |
| 2020-06-03 | 24998685.00 | ND |
| 2020-06-03 | 24998794.00 | ND |
| 2020-06-03 | 24998796.00 | ND |
| 2020-06-17 | 24998737.00 | ND |
| 2020-06-17 | 24998739.00 | ND |
| 2020-06-17 | 24998689.00 | ND |
| 2020-06-17 | 24998691.00 | ND |
| 2020-06-17 | 24998800.00 | ND |
| 2020-06-17 | 24998802.00 | ND |
| 2020-07-08 | 24998743.00 | ND |
| 2020-07-08 | 24998745.00 | ND |
| 2020-07-08 | 24998695.00 | ND |
| 2020-07-08 | 24998697.00 | ND |
| 2020-07-08 | 24998806.00 | ND |
| 2020-07-08 | 24998808.00 | ND |
| 2020-07-22 | 24620574.00 | ND |
| 2020-07-22 | 24620576.00 | ND |
| 2020-07-22 | 24620508.00 | ND |
| 2020-07-22 | 24620510.00 | ND |
| 2020-07-22 | 24621305.00 | ND |
| 2020-07-22 | 24621307.00 | ND |
| 2020-08-13 | 24620580.00 | ND |
| 2020-08-13 | 24620582.00 | ND |
| 2020-08-13 | 24620514.00 | ND |
| 2020-08-13 | 24620516.00 | ND |
| 2020-08-13 | 24621311.00 | ND |
| 2020-08-13 | 24621313.00 | ND |
| 2020-08-25 | 24620586.00 | ND |
| 2020-08-25 | 24620588.00 | ND |
| 2020-08-25 | 24620520.00 | ND |
| 2020-08-25 | 24620522.00 | ND |
| 2020-08-25 | 24621317.00 | ND |
| 2020-08-25 | 24621319.00 | ND |
| 2020-09-09 | 24620592.00 | ND |
| 2020-09-09 | 24620594.00 | ND |
| 2020-09-09 | 24620526.00 | ND |
| 2020-09-09 | 24620528.00 | ND |
| 2020-09-09 | 24621323.00 | ND |
| 2020-09-09 | 24621325.00 | ND |
| 2020-09-23 | 24620598.00 | ND |
| 2020-09-23 | 24620600.00 | ND |
| 2020-09-23 | 24620532.00 | ND |
| 2020-09-23 | 24620534.00 | ND |
| 2020-09-23 | 24621329.00 | ND |
| 2020-09-23 | 24621331.00 | ND |
| 2020-10-07 | 24620604.00 | ND |
| 2020-10-07 | 24620606.00 | ND |
| 2020-10-07 | 24620538.00 | ND |
| 2020-10-07 | 24620540.00 | ND |
| 2020-10-07 | 24810910.00 | ND |
| 2020-10-07 | 24810912.00 | ND |
| 2020-10-21 | 24620610.00 | ND |
| 2020-10-21 | 24620612.00 | ND |
| 2020-10-21 | 24620544.00 | ND |
| 2020-10-21 | 24620546.00 | ND |
| 2020-10-21 | 24810916.00 | ND |
| 2020-10-21 | 24810918.00 | ND |
| 2020-11-04 | 24620616.00 | 2.50 ppt |
| 2020-11-04 | 24620618.00 | ND |
| 2020-11-04 | 24620550.00 | ND |
| 2020-11-04 | 24620552.00 | ND |
| 2020-11-04 | 24810922.00 | ND |
| 2020-11-04 | 24810924.00 | ND |
| 2020-11-18 | 24620622.00 | 3.30 ppt |
| 2020-11-18 | 24620624.00 | ND |
| 2020-11-18 | 24620556.00 | ND |
| 2020-11-18 | 24620558.00 | ND |
| 2020-11-18 | 24810928.00 | ND |
| 2020-11-18 | 24810930.00 | ND |
| 2020-12-02 | 24620628.00 | 4.40 ppt |
| 2020-12-02 | 24620630.00 | ND |
| 2020-12-02 | 24620562.00 | ND |
| 2020-12-02 | 24620564.00 | ND |
| 2020-12-02 | 24810934.00 | 3.50 ppt |
| 2020-12-02 | 24810936.00 | ND |
| 2020-12-15 | 24620634.00 | 5.80 ppt |
| 2020-12-15 | 24620636.00 | ND |
| 2020-12-15 | 24620568.00 | ND |
| 2020-12-15 | 24620570.00 | ND |
| 2020-12-15 | 24810940.00 | 8.50 ppt |
| 2020-12-15 | 24810942.00 | ND |
| 2021-07-07 | 24810993.00 | ND |
| 2021-07-07 | 24811005.00 | ND |
| 2021-07-07 | 24811029.00 | ND |
| 2021-07-07 | 24811041.00 | ND |
| 2021-07-07 | 24810957.00 | ND |
| 2021-07-07 | 24810969.00 | ND |
| 2021-09-01 | 25202811.00 | ND |
| 2021-09-01 | 25202823.00 | ND |
| 2021-09-01 | 25202775.00 | ND |
| 2021-09-01 | 25202787.00 | ND |
| 2021-09-15 | 25386693.00 | ND |
| 2021-09-15 | 25386741.00 | ND |
| 2021-09-15 | 25386705.00 | ND |
| 2021-09-15 | 25386717.00 | ND |
| 2021-10-12 | 25571158.00 | ND |
| 2021-10-12 | 25571170.00 | ND |
| 2021-10-12 | 25571122.00 | ND |
| 2021-10-12 | 25571134.00 | ND |
| 2021-10-21 | 25387388.00 | ND |
| 2021-10-21 | 25387412.00 | ND |
| 2021-11-03 | 25571194.00 | ND |
| 2021-11-03 | 25571242.00 | ND |
| 2021-11-03 | 25571206.00 | ND |
| 2021-11-03 | 25571218.00 | ND |
| 2021-11-17 | 25571982.00 | ND |
| 2021-11-17 | 25572018.00 | 82.0 ppt |
| 2021-11-17 | 25572030.00 | ND |
| 2021-11-17 | 25571970.00 | 77.0 ppt |
| 2021-11-17 | 25571994.00 | ND |
| 2021-11-17 | 25572006.00 | ND |
| 2021-12-01 | 25747164.00 | ND |
| 2021-12-01 | 25747212.00 | ND |
| 2021-12-01 | 25747176.00 | ND |
| 2021-12-01 | 25747188.00 | ND |
| 2021-12-14 | 25747341.00 | ND |
| 2021-12-14 | 25747377.00 | 69.0 ppt |
| 2021-12-14 | 25747389.00 | ND |
| 2021-12-14 | 25747329.00 | 72.0 ppt |
| 2021-12-14 | 25747353.00 | ND |
| 2021-12-14 | 25747365.00 | ND |
| 2022-01-05 | 25925295.00 | ND |
| 2022-01-05 | 25925331.00 | 67.0 ppt |
| 2022-01-05 | 25925343.00 | ND |
| 2022-01-05 | 25925283.00 | 70.0 ppt |
| 2022-01-05 | 25925307.00 | ND |
| 2022-01-05 | 25925319.00 | ND |
| 2022-01-19 | 25925959.00 | ND |
| 2022-01-19 | 25925995.00 | 72.0 ppt |
| 2022-01-19 | 25926007.00 | ND |
| 2022-01-19 | 25925947.00 | 67.0 ppt |
| 2022-01-19 | 25925971.00 | ND |
| 2022-01-19 | 25925983.00 | ND |
| 2022-02-02 | 26101419.00 | ND |
| 2022-02-02 | 26101455.00 | 69.0 ppt |
| 2022-02-02 | 26101467.00 | ND |
| 2022-02-02 | 26101407.00 | 76.0 ppt |
| 2022-02-02 | 26101431.00 | ND |
| 2022-02-02 | 26101443.00 | ND |
| 2022-02-16 | 26101939.00 | ND |
| 2022-02-16 | 26101975.00 | 73.0 ppt |
| 2022-02-16 | 26101987.00 | ND |
| 2022-02-16 | 26101927.00 | 67.0 ppt |
| 2022-02-16 | 26101951.00 | ND |
| 2022-02-16 | 26101963.00 | ND |
| 2022-03-02 | 26102151.00 | ND |
| 2022-03-02 | 26102187.00 | 76.0 ppt |
| 2022-03-02 | 26102199.00 | ND |
| 2022-03-02 | 26102139.00 | 62.0 ppt |
| 2022-03-02 | 26102163.00 | ND |
| 2022-03-02 | 26102175.00 | ND |
| 2022-03-15 | 26271118.00 | ND |
| 2022-03-15 | 26271154.00 | 67.0 ppt |
| 2022-03-15 | 26271166.00 | ND |
| 2022-03-15 | 26271106.00 | 57.0 ppt |
| 2022-03-15 | 26271130.00 | ND |
| 2022-03-15 | 26271142.00 | ND |
| 2022-04-06 | 26446023.00 | ND |
| 2022-04-06 | 26446059.00 | 63.0 ppt |
| 2022-04-06 | 26446071.00 | ND |
| 2022-04-06 | 26446011.00 | 47.0 ppt |
| 2022-04-06 | 26446035.00 | ND |
| 2022-04-06 | 26446047.00 | ND |
| 2022-04-19 | 26446676.00 | ND |
| 2022-04-19 | 26446712.00 | 66.0 ppt |
| 2022-04-19 | 26446724.00 | ND |
| 2022-04-19 | 26446664.00 | 48.0 ppt |
| 2022-04-19 | 26446688.00 | ND |
| 2022-04-19 | 26446700.00 | ND |
| 2022-05-04 | 26630209.00 | ND |
| 2022-05-04 | 26630245.00 | 61.0 ppt |
| 2022-05-04 | 26630257.00 | ND |
| 2022-05-04 | 26630197.00 | 53.0 ppt |
| 2022-05-04 | 26630221.00 | ND |
| 2022-05-04 | 26630233.00 | ND |
| 2022-05-23 | 26630898.00 | ND |
| 2022-05-23 | 26630934.00 | 63.0 ppt |
| 2022-05-23 | 26630946.00 | ND |
| 2022-05-23 | 26630886.00 | 50.0 ppt |
| 2022-05-23 | 26630910.00 | ND |
| 2022-05-23 | 26630922.00 | ND |
| 2022-06-01 | 26825187.00 | ND |
| 2022-06-01 | 26825235.00 | ND |
| 2022-06-01 | 26825199.00 | ND |
| 2022-06-01 | 26825211.00 | ND |
| 2022-06-14 | 26825259.00 | ND |
| 2022-06-14 | 26825295.00 | 66.0 ppt |
| 2022-06-14 | 26825307.00 | ND |
| 2022-06-14 | 26825247.00 | 56.0 ppt |
| 2022-06-14 | 26825271.00 | ND |
| 2022-06-14 | 26825283.00 | ND |
| 2022-07-08 | 27019753.00 | ND |
| 2022-07-08 | 27019789.00 | 65.0 ppt |
| 2022-07-08 | 27019801.00 | ND |
| 2022-07-08 | 27019741.00 | 42.0 ppt |
| 2022-07-08 | 27019765.00 | ND |
| 2022-07-08 | 27019777.00 | ND |
| 2022-07-25 | 27214896.00 | 1.90 ppt |
| 2022-07-25 | 27214932.00 | 64.0 ppt |
| 2022-07-25 | 27214944.00 | ND |
| 2022-07-25 | 27214884.00 | 82.0 ppt |
| 2022-07-25 | 27214908.00 | ND |
| 2022-07-25 | 27214920.00 | ND |
| 2022-08-03 | 27214968.00 | ND |
| 2022-08-03 | 27215004.00 | 49.0 ppt |
| 2022-08-03 | 27215016.00 | ND |
| 2022-08-03 | 27214956.00 | 79.0 ppt |
| 2022-08-03 | 27214980.00 | ND |
| 2022-08-03 | 27214992.00 | ND |
| 2022-08-17 | 27215678.00 | 2.60 ppt |
| 2022-08-17 | 27215714.00 | 59.0 ppt |
| 2022-08-17 | 27215726.00 | 2.10 ppt |
| 2022-08-17 | 27215666.00 | 100.0 ppt |
| 2022-08-17 | 27215690.00 | ND |
| 2022-08-17 | 27215702.00 | ND |
| 2022-09-07 | 27421583.00 | 2.40 ppt |
| 2022-09-07 | 27421619.00 | 48.0 ppt |
| 2022-09-07 | 27421631.00 | 2.20 ppt |
| 2022-09-07 | 27421571.00 | 110.0 ppt |
| 2022-09-07 | 27421595.00 | ND |
| 2022-09-07 | 27421607.00 | ND |
| 2022-09-21 | 27422333.00 | 2.20 ppt |
| 2022-09-21 | 27422369.00 | 48.0 ppt |
| 2022-09-21 | 27422381.00 | 2.30 ppt |
| 2022-09-21 | 27422321.00 | 120.0 ppt |
| 2022-09-21 | 27422345.00 | ND |
| 2022-09-21 | 27422357.00 | ND |
| 2022-10-05 | 27624782.00 | 49.0 ppt |
| 2022-10-05 | 27624794.00 | 2.50 ppt |
| 2022-10-05 | 27624806.00 | 2.70 ppt |
| 2022-10-05 | 27624746.00 | 96.0 ppt |
| 2022-10-05 | 27624758.00 | ND |
| 2022-10-05 | 27624770.00 | ND |
| 2022-10-19 | 27625351.00 | 58.0 ppt |
| 2022-10-19 | 27625363.00 | ND |
| 2022-10-19 | 27625375.00 | ND |
| 2022-10-19 | 27625315.00 | 84.0 ppt |
| 2022-10-19 | 27625327.00 | ND |
| 2022-10-19 | 27625339.00 | ND |
| 2022-11-02 | 27806471.00 | ND |
| 2022-11-02 | 27806507.00 | 61.0 ppt |
| 2022-11-02 | 27806519.00 | ND |
| 2022-11-02 | 27806459.00 | 61.0 ppt |
| 2022-11-02 | 27806483.00 | ND |
| 2022-11-02 | 27806495.00 | ND |
| 2022-11-16 | 27807164.00 | ND |
| 2022-11-16 | 27807200.00 | 71.0 ppt |
| 2022-11-16 | 27807212.00 | ND |
| 2022-11-16 | 27807152.00 | 91.0 ppt |
| 2022-11-16 | 27807176.00 | ND |
| 2022-11-16 | 27807188.00 | ND |
| 2022-12-07 | 27982268.00 | ND |
| 2022-12-07 | 27982304.00 | 71.0 ppt |
| 2022-12-07 | 27982316.00 | ND |
| 2022-12-07 | 27982256.00 | 76.0 ppt |
| 2022-12-07 | 27982280.00 | ND |
| 2022-12-07 | 27982292.00 | ND |
| 2022-12-21 | 27982340.00 | ND |
| 2022-12-21 | 27982376.00 | 72.0 ppt |
| 2022-12-21 | 27982388.00 | ND |
| 2022-12-21 | 27982328.00 | 67.0 ppt |
| 2022-12-21 | 27982352.00 | ND |
| 2022-12-21 | 27982364.00 | ND |
| 2023-01-04 | 28155441.00 | ND |
| 2023-01-04 | 28155477.00 | 60.0 ppt |
| 2023-01-04 | 28155489.00 | ND |
| 2023-01-04 | 28155429.00 | 55.0 ppt |
| 2023-01-04 | 28155453.00 | ND |
| 2023-01-04 | 28155465.00 | ND |
| 2023-01-18 | 28156009.00 | ND |
| 2023-01-18 | 28156045.00 | 70.0 ppt |
| 2023-01-18 | 28156057.00 | ND |
| 2023-01-18 | 28155997.00 | 68.0 ppt |
| 2023-01-18 | 28156021.00 | ND |
| 2023-01-18 | 28156033.00 | ND |
| 2023-02-01 | 28332869.00 | ND |
| 2023-02-01 | 28332905.00 | 67.0 ppt |
| 2023-02-01 | 28332917.00 | ND |
| 2023-02-01 | 28332857.00 | 53.0 ppt |
| 2023-02-01 | 28332881.00 | ND |
| 2023-02-01 | 28332893.00 | ND |
| 2023-02-14 | 28504147.00 | ND |
| 2023-02-14 | 28504183.00 | 61.0 ppt |
| 2023-02-14 | 28504195.00 | ND |
| 2023-02-14 | 28504135.00 | 49.0 ppt |
| 2023-02-14 | 28504159.00 | ND |
| 2023-02-14 | 28504171.00 | ND |
| 2023-03-01 | 28504848.00 | ND |
| 2023-03-01 | 28504884.00 | 63.0 ppt |
| 2023-03-01 | 28504896.00 | ND |
| 2023-03-01 | 28504836.00 | 56.0 ppt |
| 2023-03-01 | 28504860.00 | ND |
| 2023-03-01 | 28504872.00 | ND |
| 2023-03-15 | 28683103.00 | ND |
| 2023-03-15 | 28683139.00 | 66.0 ppt |
| 2023-03-15 | 28683151.00 | ND |
| 2023-03-15 | 28683091.00 | 56.0 ppt |
| 2023-03-15 | 28683115.00 | ND |
| 2023-03-15 | 28683127.00 | ND |
| 2023-04-04 | 28683175.00 | ND |
| 2023-04-04 | 28683211.00 | ND |
| 2023-04-04 | 28683223.00 | ND |
| 2023-04-04 | 28683163.00 | 51.0 ppt |
| 2023-04-04 | 28683187.00 | ND |
| 2023-04-04 | 28683199.00 | ND |
| 2023-04-19 | 28880673.00 | ND |
| 2023-04-19 | 28880721.00 | ND |
| 2023-04-19 | 28880685.00 | ND |
| 2023-04-19 | 28880697.00 | ND |
| 2023-04-28 | 28880733.00 | 69.0 ppt |
| 2023-05-03 | 28881411.00 | ND |
| 2023-05-03 | 28881447.00 | 68.0 ppt |
| 2023-05-03 | 28881459.00 | ND |
| 2023-05-03 | 28881399.00 | 54.0 ppt |
| 2023-05-03 | 28881423.00 | ND |
| 2023-05-03 | 28881435.00 | ND |
| 2023-05-17 | 29089395.00 | ND |
| 2023-05-17 | 29089419.00 | ND |
| 2023-06-07 | 29090064.00 | ND |
| 2023-06-07 | 29090088.00 | ND |
| 2023-06-21 | 29089941.00 | ND |
| 2023-06-21 | 29089943.00 | ND |
| 2023-07-05 | 29284801.00 | ND |
| 2023-07-05 | 29284803.00 | ND |
| 2023-07-19 | 29284694.00 | ND |
| 2023-07-19 | 29284693.00 | ND |
| 2023-08-02 | 29476898.00 | ND |
| 2023-08-16 | 29476899.00 | ND |
| 2023-08-16 | 29476896.00 | ND |
| 2023-08-23 | 29477575.00 | ND |
| 2023-09-06 | 29682808.00 | ND |
| 2023-09-14 | 29682859.00 | ND |
| 2023-09-20 | 29683391.00 | ND |
| 2023-09-20 | 29683442.00 | ND |
| 2023-10-04 | 29869363.00 | ND |
| 2023-10-04 | 29869412.00 | ND |
| 2023-10-18 | 29869523.00 | ND |
| 2023-10-18 | 29869469.00 | ND |
| 2023-10-31 | 3J05163-01 | ND |
| 2023-11-01 | 30053608.00 | ND |
| 2023-11-01 | 30053554.00 | ND |
| 2023-11-02 | 3J04715-01 | ND |
| 2023-11-15 | 30053716.00 | ND |
| 2023-11-15 | 30053662.00 | ND |
| 2023-12-06 | 30229369.00 | ND |
| 2023-12-06 | 30229315.00 | ND |
| 2023-12-18 | 30229574.00 | ND |
| 2023-12-18 | 30229520.00 | ND |
| 2024-02-07 | 4B00747-01 | ND |