| PFBS | 10.9 pptaverage of all sampleshighest sample 21 pptdetected in 3 of 4 samples | No federal limit | 2,000 ppt | 2023-2024 |
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| Bromoform | 0.0059 ppbaverage of all sampleshighest sample 0.26 ppbdetected in 1 of 44 samples | Counts toward the 80 ppb limit for total trihalomethanes (TTHMs) | 0.5 ppb | 2020-2022 |
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| Fluoride | 620 ppbaverage of all sampleshighest sample 970 ppbdetected in 122 of 123 samples | 4,000 ppb | None published | 2018-2022 |
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| Nitrate | 504 ppbaverage of all sampleshighest sample 1,600 ppbdetected in 5 of 5 samples | 10,000 ppb | None published | 2018-2022 |
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| Haloacetic acids (HAA9) | 44.8 ppbaverage of all sampleshighest sample 48.7 ppbdetected in 4 of 4 samples | No federal limit | None published | 2018 |
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| Total trihalomethanes (TTHMs) | 32.7 ppbaverage of all sampleshighest sample 81.5 ppbdetected in 76 of 77 samples | 80 ppb | None published | 2018-2022 |
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| Haloacetic acids (HAA5) | 31.1 ppbaverage of all sampleshighest sample 57 ppbdetected in 75 of 75 samples | 60 ppb | None published | 2018-2022 |
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| Dichloroacetic acid | 17 ppbaverage of all sampleshighest sample 27.4 ppbdetected in 44 of 44 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
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| PFPeA | 15.1 pptaverage of all sampleshighest sample 24 pptdetected in 4 of 4 samples | No federal limit | None published | 2023-2024 |
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| PFHxA | 13.4 pptaverage of all sampleshighest sample 21 pptdetected in 4 of 4 samples | No federal limit | None published | 2023-2024 |
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| 6:2 FTSA | 12.5 pptaverage of all sampleshighest sample 20 pptdetected in 4 of 4 samples | No federal limit | None published | 2023-2024 |
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| PFBA | 11.6 pptaverage of all sampleshighest sample 13 pptdetected in 4 of 4 samples | No federal limit | None published | 2023-2024 |
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| Trichloroacetic acid | 7.59 ppbaverage of all sampleshighest sample 53.9 ppbdetected in 44 of 44 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
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| PFHpA | 5.25 pptaverage of all sampleshighest sample 8 pptdetected in 4 of 4 samples | No federal limit | None published | 2023-2024 |
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| Barium | 5.13 ppbaverage of all sampleshighest sample 6.5 ppbdetected in 4 of 4 samples | 2,000 ppb | None published | 2018-2022 |
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| PFHxSEPA set a limit in 2024 and proposed withdrawing it in May 2026. | 3.95 pptaverage of all sampleshighest sample 8.6 pptdetected in 2 of 4 samples | 10 ppt | None published | 2023-2024 |
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| Radium-226 + Radium-228 | 1.9 pCi/Lsum of the radium-226 and radium-228 averages | 5 pCi/L | None published | 2020-2022 |
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| Manganese | 1.5 ppbaverage of all sampleshighest sample 3 ppbdetected in 2 of 4 samples | No federal limit | None published | 2018-2022 |
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| Monochloroacetic acid | 1.46 ppbaverage of all sampleshighest sample 6.41 ppbdetected in 28 of 44 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
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| Uranium | 1.42 ppbaverage of all sampleshighest sample 1.49 ppbdetected in 2 of 2 samples | 30 ppb | None published | 2020-2022 |
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| Dibromoacetic acid | 1.22 ppbaverage of all sampleshighest sample 2.84 ppbdetected in 40 of 44 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
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| Monobromoacetic acid | 0.52 ppbaverage of all sampleshighest sample 1.6 ppbdetected in 23 of 44 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
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| Radium-226 | 0.2 pCi/Laverage of all sampleshighest sample 0.4 pCi/Ldetected in 1 of 2 samples | Counts toward the combined 5 pCi/L limit for radium-226 and radium-228 | None published | 2020-2022 |
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| Nitrite* | 19.3 ppbaverage of all sampleshighest sample 64 ppbdetected in 13 of 16 samples | 1,000 ppb | None published | 2018-2022 |
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| Aluminum* | 3.93 ppbaverage of all sampleshighest sample 5 ppbdetected in 3 of 3 samples | No federal limit | None published | 2020 |
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| 8:2 FTSA* | 2.23 pptaverage of all sampleshighest sample 9.6 pptdetected in 2 of 8 samples | No federal limit | None published | 2023-2024 |
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| PFNA*EPA set a limit in 2024 and proposed withdrawing it in May 2026. | 1.4 pptaverage of all sampleshighest sample 6.5 pptdetected in 2 of 8 samples | 10 ppt | None published | 2023-2024 |
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| Copper* | 1.38 ppbaverage of all sampleshighest sample 2.4 ppbdetected in 4 of 4 samplesMeasured where water enters the distribution system, not at the tap. EPA's action level applies to tap samples. | 1,300 ppb (EPA action level, 90th percentile) | None published | 2020 |
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| Selenium* | 0.6 ppbaverage of all sampleshighest sample 1 ppbdetected in 2 of 3 samples | 50 ppb | None published | 2020 |
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