| Bromoform | 0.34 ppbaverage of all sampleshighest sample 11.1 ppbdetected in 9 of 51 samples | Counts toward the 80 ppb limit for total trihalomethanes (TTHMs) | 0.5 ppb | 2020-2022 |
|---|
| Strontium | 302 ppbaverage of all sampleshighest sample 348 ppbdetected in 4 of 4 samples | No federal limit | None published | 2016 |
|---|
| Chlorate | 138 ppbaverage of all sampleshighest sample 157 ppbdetected in 4 of 4 samples | No federal limit | None published | 2016 |
|---|
| Haloacetic acids (HAA9) | 35.1 ppbaverage of all sampleshighest sample 53.2 ppbdetected in 7 of 7 samples | No federal limit | None published | 2019 |
|---|
| Haloacetic acids (HAA5) | 32.1 ppbaverage of all sampleshighest sample 57.5 ppbdetected in 80 of 80 samples | 60 ppb | None published | 2018-2022 |
|---|
| Dichloroacetic acid | 20.7 ppbaverage of all sampleshighest sample 36 ppbdetected in 52 of 52 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
|---|
| Total trihalomethanes (TTHMs) | 18.5 ppbaverage of all sampleshighest sample 160 ppbdetected in 82 of 82 samples | 80 ppb | None published | 2018-2022 |
|---|
| PFBA | 8.55 pptaverage of all sampleshighest sample 8.6 pptdetected in 2 of 2 samples | No federal limit | None published | 2023 |
|---|
| Trichloroacetic acid | 6.5 ppbaverage of all sampleshighest sample 10 ppbdetected in 52 of 52 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
|---|
| PFPeA | 5.95 pptaverage of all sampleshighest sample 6.1 pptdetected in 2 of 2 samples | No federal limit | None published | 2023 |
|---|
| Manganese | 5.9 ppbaverage of all sampleshighest sample 6.2 ppbdetected in 2 of 2 samples | No federal limit | None published | 2019 |
|---|
| PFHxA | 4.35 pptaverage of all sampleshighest sample 4.5 pptdetected in 2 of 2 samples | No federal limit | None published | 2023 |
|---|
| Molybdenum | 1.9 ppbaverage of all sampleshighest sample 2.3 ppbdetected in 4 of 4 samples | No federal limit | None published | 2016 |
|---|
| PFBS | 1.9 pptaverage of all sampleshighest sample 3.8 pptdetected in 1 of 2 samples | No federal limit | 2,000 ppt | 2023 |
|---|
| Vanadium | 1.68 ppbaverage of all sampleshighest sample 1.8 ppbdetected in 4 of 4 samples | No federal limit | None published | 2016 |
|---|
| PFHpA | 1.55 pptaverage of all sampleshighest sample 3.1 pptdetected in 1 of 2 samples | No federal limit | None published | 2023 |
|---|
| Monochloroacetic acid | 1.45 ppbaverage of all sampleshighest sample 4.3 ppbdetected in 44 of 52 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
|---|
| Dibromoacetic acid | 1.01 ppbaverage of all sampleshighest sample 12.2 ppbdetected in 40 of 51 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
|---|
| Chromium (total) | 0.64 ppbaverage of all sampleshighest sample 1.2 ppbdetected in 4 of 4 samples | 100 ppb | None published | 2016 |
|---|
| Monobromoacetic acid | 0.13 ppbaverage of all sampleshighest sample 0.75 ppbdetected in 18 of 51 samples | Counts toward the 60 ppb limit for haloacetic acids (HAA5) | None published | 2020-2022 |
|---|
| Fluoride* | 637 ppbaverage of all sampleshighest sample 830 ppbdetected in 223 of 223 samples | 4,000 ppb | None published | 2018-2022 |
|---|
| Nitrate* | 119 ppbaverage of all sampleshighest sample 350 ppbdetected in 16 of 16 samples | 10,000 ppb | None published | 2018-2022 |
|---|
| 6:2 FTSA* | 40.9 pptaverage of all sampleshighest sample 190 pptdetected in 3 of 8 samples | No federal limit | None published | 2023-2024 |
|---|
| Nitrite* | 19.3 ppbaverage of all sampleshighest sample 64 ppbdetected in 13 of 16 samples | 1,000 ppb | None published | 2018-2022 |
|---|
| Barium* | 4.77 ppbaverage of all sampleshighest sample 5.6 ppbdetected in 3 of 3 samples | 2,000 ppb | None published | 2020 |
|---|
| Aluminum* | 3.93 ppbaverage of all sampleshighest sample 5 ppbdetected in 3 of 3 samples | No federal limit | None published | 2020 |
|---|
| PFHxS*EPA set a limit in 2024 and proposed withdrawing it in May 2026. | 2.58 pptaverage of all sampleshighest sample 9.4 pptdetected in 3 of 8 samples | 10 ppt | None published | 2023-2024 |
|---|
| 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 |
|---|
| 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 |
|---|
| 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 |
|---|
| Selenium* | 0.6 ppbaverage of all sampleshighest sample 1 ppbdetected in 2 of 3 samples | 50 ppb | None published | 2020 |
|---|
| Uranium* | 0.49 ppbaverage of all sampleshighest sample 1.47 ppbdetected in 1 of 3 samples | 30 ppb | None published | 2020 |
|---|
| Radium-226* | 0.13 pCi/Laverage of all sampleshighest sample 0.4 pCi/Ldetected in 1 of 3 samples | Counts toward the combined 5 pCi/L limit for radium-226 and radium-228 | None published | 2020 |
|---|