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Tap water quality by state
How many water systems in each state had PFAS detected in EPA's latest nationwide testing, and how many exceeded the 4 ppt limit for PFOA or PFOS.
| State | Systems tested | PFAS detected | Over EPA limit |
|---|---|---|---|
| California | 707 | 239 | 166 |
| Florida | 409 | 195 | 160 |
| New Jersey | 265 | 174 | 155 |
| Pennsylvania | 390 | 176 | 117 |
| North Carolina | 291 | 146 | 116 |
| Massachusetts | 263 | 144 | 106 |
| Texas | 1154 | 622 | 101 |
| Alabama | 307 | 117 | 81 |
| South Carolina | 165 | 91 | 66 |
| Ohio | 347 | 142 | 59 |
| New York | 334 | 100 | 50 |
| Georgia | 256 | 81 | 43 |
| Tennessee | 277 | 87 | 37 |
| Connecticut | 63 | 40 | 35 |
| Washington | 248 | 68 | 34 |
| Kentucky | 231 | 87 | 30 |
| Puerto Rico | 99 | 39 | 28 |
| Illinois | 487 | 128 | 27 |
| Arizona | 152 | 57 | 24 |
| West Virginia | 103 | 34 | 21 |
| Wisconsin | 202 | 52 | 21 |
| Virginia | 171 | 54 | 20 |
| Indiana | 230 | 55 | 19 |
| Maryland | 83 | 30 | 16 |
| Minnesota | 196 | 88 | 16 |
| New Hampshire | 51 | 18 | 16 |
| Delaware | 36 | 17 | 14 |
| Colorado | 165 | 39 | 13 |
| Oklahoma | 166 | 68 | 13 |
| Oregon | 127 | 18 | 11 |
| Rhode Island | 29 | 15 | 11 |
| Missouri | 232 | 73 | 9 |
| Iowa | 152 | 32 | 7 |
| Louisiana | 268 | 48 | 7 |
| Michigan | 319 | 44 | 7 |
| Mississippi | 239 | 9 | 7 |
| Kansas | 103 | 35 | 6 |
| Maine | 41 | 10 | 5 |
| Alaska | 30 | 9 | 4 |
| Nebraska | 53 | 7 | 4 |
| New Mexico | 73 | 11 | 4 |
| Idaho | 61 | 9 | 3 |
| Nevada | 59 | 10 | 3 |
| Utah | 129 | 16 | 3 |
| Montana | 45 | 5 | 2 |
| South Dakota | 49 | 7 | 2 |
| Arkansas | 172 | 10 | 1 |
| Vermont | 38 | 3 | 1 |
| Wyoming | 33 | 3 | 1 |
| District of Columbia | 3 | 3 | 0 |
| Hawaii | 45 | 2 | 0 |
| North Dakota | 38 | 7 | 0 |