Water Quality in Oklahoma
889 water systems • 488 cities • EPA SDWIS Data
889
Water Systems
128,472
Total Violations
29,472
Health-Based Violations
3,653,817
Population Served
Overview
Oklahoma has 889 active community water systems serving 3,653,817 people. These systems have accumulated 128,472 EPA Safe Drinking Water Act violations on record, of which 29,472 are health-based violations (meaning a contaminant exceeded safe levels).
Common contaminants found in violations: Nitrate, Gross Alpha, Fecal Coliform, TTHM, Total Haloacetic Acids (HAA5), Contaminant 2920, Stage 2 DBP, Total Coliform (TCR), E. coli, Bromate.
Cities with Most Violations in Oklahoma
| # | City | Violations | Health-Based | Water Systems | Population |
|---|---|---|---|---|---|
| 1 | Tuttle | 5,700 | 40 | 3 | 4,732 |
| 2 | Edmond | 4,849 | 64 | 15 | 90,064 |
| 3 | Mcloud | 4,285 | 13 | 3 | 3,079 |
| 4 | Prue | 1,967 | 10 | 2 | 429 |
| 5 | Oilton | 1,797 | 4 | 1 | 1,435 |
| 6 | Prague | 1,703 | 13 | 1 | 2,395 |
| 7 | Oklahoma City | 1,673 | 56 | 11 | 677,192 |
| 8 | Vian | 1,536 | 12 | 2 | 1,471 |
| 9 | Tecumseh | 1,419 | 142 | 2 | 6,188 |
| 10 | Afton | 1,413 | 58 | 6 | 3,495 |
Largest Cities in Oklahoma
| # | City | Population | Violations | Water Systems |
|---|---|---|---|---|
| 1 | Oklahoma City | 677,192 | 1,673 | 11 |
| 2 | Tulsa | 416,005 | 577 | 4 |
| 3 | Broken Arrow | 142,122 | 114 | 2 |
| 4 | Norman | 139,525 | 960 | 6 |
| 5 | Lawton | 99,224 | 920 | 11 |
| 6 | Edmond | 90,064 | 4,849 | 15 |
| 7 | Stillwater | 72,946 | 168 | 6 |
| 8 | Claremore | 59,522 | 406 | 9 |
| 9 | Midwest City | 55,935 | 24 | 1 |
| 10 | Moore | 55,083 | 229 | 1 |
All Cities in Oklahoma
| City | Population | Violations | Health Violations | Contaminants |
|---|---|---|---|---|
| Oklahoma City | 677,192 | 1,673 | 56 | Gross Alpha, Haloacetic Acids, Nitrate +1 more |
| Tulsa | 416,005 | 577 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Broken Arrow | 142,122 | 114 | 94 | Bromate, E. coli, Fecal Coliform +2 more |
| Norman | 139,525 | 960 | 28 | E. coli, Gross Alpha, Nitrate +1 more |
| Lawton | 99,224 | 920 | 21 | E. coli, Gross Alpha, Nitrate +2 more |
| Edmond | 90,064 | 4,849 | 64 | Arsenic, E. coli, Fluoride +5 more |
| Stillwater | 72,946 | 168 | 83 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Claremore | 59,522 | 406 | 189 | E. coli, Gross Alpha, Nitrate +3 more |
| Midwest City | 55,935 | 24 | 0 | |
| Moore | 55,083 | 229 | 40 | Arsenic, Barium, Gross Alpha +2 more |
| Enid | 54,039 | 1,013 | 38 | Gross Alpha, Nitrate, Nitrate-Nitrite +1 more |
| Muskogee | 43,745 | 452 | 379 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Ardmore | 36,278 | 543 | 227 | Contaminant 2920, E. coli, Fecal Coliform +6 more |
| Bartlesville | 35,948 | 339 | 245 | Contaminant 2920, E. coli, Fecal Coliform +3 more |
| Ponca City | 32,720 | 233 | 23 | Disinfection Byproducts, Gross Alpha, Nitrate +1 more |
| Ada | 32,154 | 91 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Shawnee | 32,108 | 348 | 36 | Contaminant 2920, E. coli, Gross Alpha +4 more |
| Collinsville | 30,775 | 41 | 11 | Gross Alpha, Stage 2 DBP, Total Haloacetic Acids (HAA5) |
| Sand Springs | 30,224 | 71 | 12 | Disinfection Byproducts, Gross Alpha, Nitrate +2 more |
| Jenks | 29,712 | 57 | 23 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Sapulpa | 29,012 | 83 | 30 | Fecal Coliform, Gross Alpha, Nitrate +2 more |
| Mcalester | 28,783 | 1,248 | 784 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Sallisaw | 24,760 | 165 | 20 | E. coli, Fecal Coliform, Gross Alpha +2 more |
| Durant | 23,870 | 93 | 65 | Gross Alpha, TTHM, Total Haloacetic Acids (HAA5) |
| Altus | 23,699 | 372 | 179 | Contaminant 1009, Contaminant 2920, E. coli +5 more |
| Madill | 23,659 | 342 | 251 | Copper, Disinfection Byproducts, E. coli +5 more |
| Owasso | 23,176 | 118 | 3 | Gross Alpha, Nitrate, Stage 2 DBP |
| Yukon | 23,036 | 305 | 20 | Gross Alpha, Nitrate |
| Duncan | 23,000 | 88 | 63 | Contaminant 2920, E. coli, Gross Alpha +3 more |
| Fort Sill | 23,000 | 19 | 5 | Gross Alpha, Nitrate |
| Del City | 22,248 | 331 | 4 | E. coli, Nitrate, Stage 2 DBP |
| Tahlequah | 20,694 | 201 | 74 | Bromate, Gross Alpha, Nitrate +3 more |
| Bethany | 20,307 | 37 | 3 | E. coli, Gross Alpha |
| El Reno | 19,135 | 136 | 50 | E. coli, Fecal Coliform, Gross Alpha +3 more |
| Guthrie | 18,931 | 708 | 16 | Contaminant 1009, Contaminant 2920, Gross Alpha +3 more |
| Bixby | 18,750 | 12 | 1 | Stage 2 DBP |
| Mustang | 18,576 | 32 | 5 | Arsenic, Gross Alpha, Nitrate +1 more |
| Pryor | 17,228 | 479 | 14 | Gross Alpha, Nitrate, Stage 2 DBP |
| Chickasha | 16,976 | 137 | 86 | E. coli, Fecal Coliform, Gross Alpha +3 more |
| Wagoner | 16,242 | 526 | 279 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Woodward | 15,960 | 395 | 22 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Okmulgee | 15,852 | 373 | 262 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Skiatook | 14,757 | 132 | 31 | Fecal Coliform, Gross Alpha, TTHM |
| Miami | 14,319 | 303 | 13 | Gross Alpha, Nitrate, Stage 2 DBP |
| Coweta | 13,701 | 258 | 180 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Eufaula | 13,284 | 701 | 405 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Spiro | 13,094 | 347 | 262 | Contaminant 2920, Gross Alpha, Nitrate +3 more |
| Glenpool | 12,500 | 25 | 8 | Gross Alpha, Nitrate |
| Elk City | 12,277 | 625 | 9 | Gross Alpha, Nitrate, Stage 2 DBP |
| Vinita | 12,041 | 259 | 74 | E. coli, Gross Alpha, Nitrate +4 more |
| Broken Bow | 11,619 | 99 | 51 | E. coli, Fecal Coliform, Gross Alpha +4 more |
| Guymon | 11,442 | 29 | 8 | Gross Alpha, Lead, Nitrate +1 more |
| Checotah | 11,036 | 542 | 405 | Contaminant 2920, Fecal Coliform, Gross Alpha +5 more |
| Marlow | 11,026 | 29 | 14 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Sulphur | 10,989 | 18 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Weatherford | 10,970 | 248 | 27 | Barium, Gross Alpha, Nitrate +2 more |
| Mounds | 10,470 | 266 | 162 | Contaminant 1009, E. coli, Fecal Coliform +6 more |
| Poteau | 9,999 | 303 | 133 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Henryetta | 9,176 | 246 | 144 | Contaminant 2920, Gross Alpha, Nitrate +4 more |
| Pauls Valley | 9,041 | 61 | 31 | Contaminant 2920, Fecal Coliform, Gross Alpha +4 more |
| Clinton | 8,883 | 229 | 12 | E. coli, Fecal Coliform, Nitrate |
| Blackwell | 8,590 | 111 | 74 | E. coli, Fecal Coliform, Gross Alpha +2 more |
| Hastings | 8,398 | 488 | 139 | Gross Alpha, HAA5, TTHM |
| Chouteau | 8,380 | 57 | 3 | Gross Alpha, Nitrate, Stage 2 DBP |
| Cushing | 8,371 | 44 | 1 | Stage 2 DBP |
| Ochelata | 8,349 | 251 | 16 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Grove | 8,297 | 1,169 | 23 | Disinfection Byproducts, E. coli, Fecal Coliform +4 more |
| Hulbert | 8,115 | 318 | 36 | Contaminant 2920, E. coli, Gross Alpha +5 more |
| Fort Gibson | 8,002 | 349 | 146 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Newcastle | 7,900 | 36 | 6 | Gross Alpha, Nitrate |
| Oologah | 7,725 | 38 | 6 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Perry | 7,665 | 802 | 121 | Contaminant 1009, Contaminant 2920, Gross Alpha +5 more |
| Piedmont | 7,542 | 160 | 39 | Arsenic, Gross Alpha, HAA5 +3 more |
| Antlers | 7,372 | 319 | 291 | Contaminant 2920, Fecal Coliform, Nitrate +3 more |
| Atoka | 7,313 | 360 | 277 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Okemah | 7,186 | 158 | 67 | Fecal Coliform, Gross Alpha, Nitrate +1 more |
| Nowata | 7,101 | 767 | 418 | Bromate, Gross Alpha, Nitrate +3 more |
| Idabel | 6,952 | 216 | 190 | Contaminant 2920, Fecal Coliform, Gross Alpha +4 more |
| Stilwell | 6,951 | 48 | 6 | E. coli, Nitrate, Stage 2 DBP |
| Tishomingo | 6,933 | 180 | 58 | Bromate, Contaminant 2920, Disinfection Byproducts +7 more |
| Seminole | 6,899 | 8 | 2 | Gross Alpha |
| Cleveland | 6,844 | 433 | 340 | Contaminant 2920, Gross Alpha, Nitrate +4 more |
| Anadarko | 6,804 | 138 | 104 | Contaminant 2920, E. coli, Fecal Coliform +3 more |
| Purcell | 6,693 | 41 | 4 | Gross Alpha, Nitrate |
| Hartshorne | 6,521 | 315 | 263 | Gross Alpha, Nitrate, TTHM +1 more |
| Mannford | 6,435 | 45 | 4 | TTHM, Total Coliform (TCR) |
| Muldrow | 6,302 | 62 | 35 | Contaminant 2920, E. coli, Gross Alpha +3 more |
| Mead | 6,270 | 55 | 43 | E. coli, Fecal Coliform, Gross Alpha +2 more |
| Tecumseh | 6,188 | 1,419 | 142 | Contaminant 2920, E. coli, Haloacetic Acids +6 more |
| Noble | 6,087 | 891 | 215 | Barium, Gross Alpha, HAA5 +3 more |
| Ketchum | 5,830 | 72 | 2 | Nitrate |
| Wilburton | 5,775 | 101 | 63 | Contaminant 2920, E. coli, Nitrate +2 more |
| Morris | 5,750 | 455 | 357 | Disinfection Byproducts, Gross Alpha, Nitrate +3 more |
| Kellyville | 5,675 | 17 | 10 | E. coli, Gross Alpha, Nitrate +2 more |
| Earlsboro | 5,622 | 28 | 1 | Stage 2 DBP |
| Alva | 5,564 | 73 | 8 | Gross Alpha, Nitrate, Stage 2 DBP |
| Walters | 5,551 | 129 | 83 | Barium, Gross Alpha, Lead +5 more |
| Carnegie | 5,537 | 33 | 10 | Gross Alpha, Nitrate, Selenium +1 more |
| Hugo | 5,536 | 194 | 158 | Bromate, Contaminant 2920, E. coli +6 more |
| Holdenville | 5,532 | 319 | 183 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Cache | 5,371 | 169 | 131 | Gross Alpha, Lead, Nitrate +2 more |
| Kingfisher | 5,310 | 744 | 61 | Gross Alpha, Nitrate, Selenium +2 more |
| Lexington | 5,166 | 221 | 18 | 1,2-Dichloroethane, Gross Alpha, Nitrate |
| Elgin | 5,140 | 196 | 13 | Gross Alpha, Nitrate, Stage 2 DBP |
| Wister | 5,057 | 440 | 141 | E. coli, Fecal Coliform, Gross Alpha +4 more |
| Locust Grove | 5,031 | 547 | 53 | Contaminant 2920, E. coli, Gross Alpha +4 more |
| Porum | 5,000 | 86 | 7 | E. coli, Gross Alpha, Nitrate +1 more |
| Westville | 4,869 | 299 | 21 | Contaminant 2920, E. coli, Gross Alpha +2 more |
| Lone Grove | 4,863 | 52 | 2 | Nitrate, Stage 2 DBP |
| Wynnewood | 4,849 | 183 | 69 | Contaminant 2920, E. coli, Stage 2 DBP +3 more |
| Tuttle | 4,732 | 5,700 | 40 | Chlorine, Gross Alpha, HAA5 +4 more |
| Pocola | 4,700 | 111 | 95 | TTHM, Total Haloacetic Acids (HAA5) |
| Harrah | 4,489 | 650 | 53 | Disinfection Byproducts, Endrin, Gross Alpha +4 more |
| Lindsay | 4,420 | 28 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Amber | 4,385 | 376 | 31 | Gross Alpha, HAA5, Nitrate +1 more |
| Sayre | 4,375 | 35 | 5 | Gross Alpha, Nitrate |
| Wewoka | 4,352 | 874 | 669 | Contaminant 2920, Disinfection Byproducts, E. coli +6 more |
| Haworth | 4,196 | 137 | 68 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Quinton | 4,071 | 131 | 62 | Contaminant 2920, E. coli, Gross Alpha +4 more |
| Adair | 4,064 | 45 | 3 | Gross Alpha, Nitrate, Total Haloacetic Acids (HAA5) |
| Big Cabin | 4,043 | 120 | 64 | Gross Alpha, Nitrate, TTHM +1 more |
| Choctaw | 4,031 | 187 | 9 | E. coli, Gross Alpha, Nitrate |
| Jay | 4,020 | 135 | 57 | Contaminant 2920, Lead, Stage 2 DBP +2 more |
| Nichols Hills | 4,020 | 190 | 13 | Arsenic, Barium, Gross Alpha +3 more |
| Frederick | 3,940 | 115 | 107 | Contaminant 1009, Contaminant 2920, Gross Alpha +2 more |
| Dewey | 3,878 | 293 | 34 | Disinfection Byproducts, Gross Alpha, Nitrate +3 more |
| Pawhuska | 3,800 | 69 | 30 | E. coli, Stage 2 DBP, TTHM |
| Hobart | 3,746 | 18 | 3 | Gross Alpha |
| Spencer | 3,746 | 167 | 5 | Gross Alpha, Nitrate, Stage 2 DBP |
| Bristow | 3,700 | 718 | 1 | Stage 2 DBP |
| Fairview | 3,690 | 332 | 212 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Blair | 3,556 | 129 | 58 | Gross Alpha, Nitrate, Selenium +2 more |
| Pawnee | 3,555 | 684 | 332 | Contaminant 2920, Fecal Coliform, Gross Alpha +5 more |
| Chandler | 3,542 | 210 | 111 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Afton | 3,495 | 1,413 | 58 | E. coli, Fecal Coliform, Gross Alpha +6 more |
| Blanchard | 3,485 | 84 | 12 | Stage 2 DBP, Surface Water Treatment |
| Caddo | 3,434 | 162 | 24 | Gross Alpha, Nitrate, Stage 2 DBP |
| Tonkawa | 3,299 | 25 | 2 | Gross Alpha, Stage 2 DBP |
| Comanche | 3,259 | 245 | 176 | Contaminant 2920, Gross Alpha, Nitrate +1 more |
| Inola | 3,149 | 65 | 4 | Stage 2 DBP, TTHM |
| Allen | 3,117 | 14 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Mangum | 3,099 | 58 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Mcloud | 3,079 | 4,285 | 13 | Gross Alpha, Nitrate, Stage 2 DBP |
| Gore | 3,013 | 128 | 48 | Contaminant 2920, E. coli, Nitrate +1 more |
| Newkirk | 3,008 | 167 | 66 | Disinfection Byproducts, Gross Alpha, Nitrate +3 more |
| Heavener | 3,000 | 103 | 54 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Cordell | 2,903 | 63 | 8 | Nitrate-Nitrite |
| Fairland | 2,877 | 194 | 14 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Drumright | 2,876 | 17 | 2 | Gross Alpha |
| Roland | 2,842 | 5 | 2 | TTHM, Total Haloacetic Acids (HAA5) |
| Watonga | 2,816 | 60 | 38 | Gross Alpha, Nitrate-Nitrite, Selenium +1 more |
| Calera | 2,815 | 214 | 140 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Stroud | 2,811 | 139 | 104 | Contaminant 2920, E. coli, Gross Alpha +4 more |
| Healdton | 2,785 | 26 | 14 | Gross Alpha, Nitrate, TTHM |
| Stigler | 2,731 | 91 | 24 | Contaminant 2920, TTHM |
| Coalgate | 2,730 | 181 | 87 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Hinton | 2,709 | 269 | 57 | Barium, Gross Alpha, HAA5 +3 more |
| Wetumka | 2,676 | 285 | 127 | Contaminant 2920, Gross Alpha, Nitrate +3 more |
| Catoosa | 2,668 | 53 | 0 | |
| Commerce | 2,645 | 29 | 5 | Gross Alpha, Stage 2 DBP |
| Marietta | 2,626 | 30 | 14 | Gross Alpha, Nitrate |
| Davis | 2,610 | 66 | 27 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Wayne | 2,585 | 132 | 17 | E. coli, Gross Alpha, Nitrate +1 more |
| Hominy | 2,584 | 821 | 563 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Perkins | 2,572 | 424 | 14 | Gross Alpha, Nitrate |
| Crescent | 2,557 | 43 | 8 | E. coli, Gross Alpha, Nitrate +1 more |
| Wainwright | 2,550 | 153 | 138 | Gross Alpha, Stage 2 DBP, TTHM +1 more |
| Hollis | 2,533 | 314 | 177 | Gross Alpha, Nitrate, Nitrate-Nitrite +1 more |
| Agra | 2,525 | 53 | 3 | Gross Alpha, Nitrate |
| Ramona | 2,516 | 455 | 89 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Cookson | 2,512 | 819 | 52 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Bowlegs | 2,500 | 56 | 8 | Gross Alpha, Lead, Nitrate +1 more |
| Talihina | 2,450 | 401 | 284 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Ninnekah | 2,425 | 28 | 3 | Gross Alpha, Nitrate, Stage 2 DBP |
| Granite | 2,424 | 125 | 15 | Gross Alpha, Nitrate, Selenium +1 more |
| Disney | 2,400 | 72 | 15 | Contaminant 2920, Nitrate, Stage 2 DBP +2 more |
| Porter | 2,400 | 134 | 104 | Nitrate, Stage 2 DBP, TTHM +1 more |
| Goodwell | 2,398 | 240 | 15 | Gross Alpha, Lead, Nitrate |
| Prague | 2,395 | 1,703 | 13 | E. coli, Gross Alpha, Nitrate +1 more |
| Preston | 2,355 | 258 | 177 | Gross Alpha, Stage 2 DBP, TTHM +1 more |
| Kansas | 2,329 | 236 | 11 | E. coli, Fecal Coliform, Nitrate +1 more |
| Colbert | 2,312 | 58 | 9 | Gross Alpha, Nitrate, Stage 2 DBP |
| Grant | 2,300 | 82 | 30 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Oktaha | 2,280 | 119 | 84 | TTHM, Total Haloacetic Acids (HAA5) |
| Clayton | 2,226 | 563 | 436 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Crowder | 2,203 | 103 | 23 | E. coli, Nitrate, Stage 2 DBP +2 more |
| Okeene | 2,200 | 176 | 104 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Arkoma | 2,180 | 47 | 2 | Gross Alpha, Stage 2 DBP |
| Ratliff City | 2,131 | 124 | 98 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Chattanooga | 2,127 | 165 | 36 | Gross Alpha, Nitrate, Nitrate-Nitrite +3 more |
| Waurika | 2,100 | 301 | 275 | E. coli, Fecal Coliform, Nitrate +2 more |
| Tinker Afb | 2,100 | 11 | 0 | |
| Hennessey | 2,058 | 68 | 11 | Gross Alpha, Nitrate, Nitrate-Nitrite |
| Stringtown | 2,057 | 268 | 233 | Contaminant 2920, E. coli, Gross Alpha +3 more |
| Burns Flat | 2,057 | 21 | 4 | Nitrate, Stage 2 DBP |
| Krebs | 2,051 | 77 | 55 | Contaminant 2920, E. coli, TTHM +1 more |
| Yale | 2,047 | 395 | 310 | Nitrate, Stage 2 DBP, TTHM +1 more |
| Garber | 2,036 | 173 | 91 | Carbon Tetrachloride, Gross Alpha, Nitrate +2 more |
| Warner | 2,020 | 50 | 8 | Gross Alpha, TTHM, Total Coliform (TCR) |
| Haskell | 2,015 | 267 | 176 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Thackerville | 2,000 | 11 | 4 | Gross Alpha, Nitrate |
| Goldsby | 2,000 | 45 | 8 | Gross Alpha, Nitrate, Selenium +1 more |
| Indianola | 2,000 | 17 | 5 | Nitrate, Stage 2 DBP, TTHM |
| Garvin | 1,997 | 194 | 67 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Bison | 1,980 | 6 | 4 | Gross Alpha, Nitrate |
| Valliant | 1,970 | 127 | 98 | E. coli, Stage 2 DBP, TTHM +1 more |
| Chelsea | 1,964 | 39 | 2 | Fecal Coliform |
| Carter | 1,925 | 31 | 4 | Selenium |
| Shidler | 1,904 | 560 | 193 | Contaminant 2920, E. coli, Gross Alpha +5 more |
| Welch | 1,900 | 364 | 77 | E. coli, Gross Alpha, HAA5 +4 more |
| Schulter | 1,890 | 154 | 142 | Contaminant 1006, Nitrate, Stage 2 DBP +2 more |
| Erick | 1,880 | 218 | 10 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Okay | 1,877 | 110 | 75 | Fecal Coliform, Gross Alpha, Stage 2 DBP +2 more |
| Marshall | 1,876 | 33 | 4 | Nitrate, Nitrate-Nitrite, Stage 2 DBP |
| Elmore City | 1,863 | 45 | 4 | Gross Alpha, Nitrate, TTHM |
| Barnsdall | 1,804 | 776 | 521 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Monroe | 1,800 | 77 | 12 | Gross Alpha, TTHM, Total Haloacetic Acids (HAA5) |
| Hooker | 1,788 | 66 | 3 | Nitrate |
| Boswell | 1,782 | 554 | 438 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Terlton | 1,775 | 149 | 48 | TTHM, Total Haloacetic Acids (HAA5) |
| Colcord | 1,731 | 166 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Jones | 1,727 | 24 | 4 | E. coli, Gross Alpha, Nitrate +1 more |
| Mooreland | 1,726 | 403 | 20 | Gross Alpha, Nitrate, Stage 2 DBP |
| Langston | 1,670 | 142 | 18 | Gross Alpha, Nitrate, TTHM +1 more |
| Fairfax | 1,655 | 667 | 472 | Contaminant 2920, E. coli, Gross Alpha +4 more |
| Whitesboro | 1,643 | 131 | 78 | Dichloromethane, Gross Alpha, Nitrate +2 more |
| Minco | 1,632 | 12 | 1 | Stage 2 DBP |
| Cherokee | 1,630 | 53 | 12 | Disinfection Byproducts, Gross Alpha, Nitrate +2 more |
| Stonewall | 1,627 | 34 | 2 | Stage 2 DBP |
| Wilson | 1,600 | 27 | 5 | Gross Alpha, Nitrate, Stage 2 DBP |
| Kingston | 1,600 | 21 | 9 | Gross Alpha, Nitrate, Stage 2 DBP |
| Howe | 1,593 | 52 | 18 | Gross Alpha, Nitrate, TTHM +1 more |
| Stratford | 1,575 | 17 | 7 | E. coli, Gross Alpha, Nitrate |
| Medford | 1,572 | 175 | 17 | Gross Alpha, Nitrate, Selenium +1 more |
| Beaver | 1,570 | 106 | 2 | Gross Alpha, Nitrate |
| Apache | 1,521 | 123 | 27 | Gross Alpha, HAA5, Haloacetic Acids +3 more |
| Snyder | 1,509 | 198 | 99 | Contaminant 2920, E. coli, Nitrate +3 more |
| Boise City | 1,483 | 238 | 5 | Nitrate, Stage 2 DBP |
| Konawa | 1,479 | 860 | 15 | E. coli, HAA5, Nitrate +1 more |
| Vian | 1,471 | 1,536 | 12 | E. coli, Gross Alpha, Nitrate +1 more |
| Oilton | 1,435 | 1,797 | 4 | Gross Alpha, Stage 2 DBP |
| Salina | 1,422 | 24 | 4 | Total Coliform (TCR) |
| Wellston | 1,400 | 131 | 79 | Stage 2 DBP, TTHM |
| Panama | 1,400 | 91 | 58 | Gross Alpha, Nitrate, TTHM |
| Buffalo | 1,398 | 417 | 8 | Gross Alpha, Nitrate |
| Waukomis | 1,366 | 15 | 2 | Nitrate |
| Beggs | 1,364 | 345 | 270 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Okarche | 1,360 | 258 | 227 | Dichloromethane, Nitrate, Nitrate-Nitrite +2 more |
| Custer City | 1,353 | 16 | 2 | Nitrate-Nitrite, Stage 2 DBP |
| Calumet | 1,350 | 392 | 134 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Gould | 1,338 | 164 | 24 | Gross Alpha, Nitrate, Nitrate-Nitrite +1 more |
| Wyandotte | 1,314 | 927 | 5 | Gross Alpha, Nitrate, Stage 2 DBP |
| Council Hill | 1,300 | 418 | 207 | Contaminant 2920, Nitrate, Stage 2 DBP +2 more |
| Rush Springs | 1,278 | 51 | 6 | Gross Alpha, Nitrate |
| Geary | 1,258 | 369 | 120 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Ringling | 1,241 | 56 | 15 | Disinfection Byproducts, Gross Alpha, Lead +2 more |
| Thomas | 1,238 | 7 | 1 | Nitrate |
| Leedey | 1,236 | 113 | 15 | E. coli, Nitrate, Nitrate-Nitrite +1 more |
| Maysville | 1,212 | 517 | 378 | Contaminant 2920, E. coli, Fecal Coliform +4 more |
| Webbers Falls | 1,200 | 93 | 12 | Contaminant 2920, E. coli, Fecal Coliform |
| Shattuck | 1,200 | 81 | 12 | Gross Alpha, Nitrate, Stage 2 DBP |
| Geronimo | 1,200 | 29 | 1 | Stage 2 DBP |
| Sperry | 1,200 | 17 | 0 | |
| Tipton | 1,194 | 279 | 164 | Arsenic, Gross Alpha, Haloacetic Acids +4 more |
| Pond Creek | 1,182 | 32 | 5 | Nitrate, Stage 2 DBP |
| Cyril | 1,168 | 23 | 1 | Stage 2 DBP |
| Byron | 1,150 | 34 | 9 | Gross Alpha, Nitrate, Nitrate-Nitrite +1 more |
| Temple | 1,146 | 160 | 121 | Contaminant 2920, E. coli, Fecal Coliform +1 more |
| Stuart | 1,145 | 29 | 0 | |
| Maud | 1,136 | 57 | 9 | Gross Alpha, Lead, Nitrate |
| Grandfield | 1,110 | 283 | 262 | Gross Alpha, Nitrate-Nitrite, Selenium +1 more |
| Laverne | 1,097 | 183 | 1 | Gross Alpha |
| Hydro | 1,060 | 72 | 9 | Nitrate, Nitrate-Nitrite, Stage 2 DBP |
| Coffeyville | 1,050 | 134 | 49 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Quapaw | 1,046 | 179 | 11 | Gross Alpha, Nitrate, Stage 2 DBP |
| Meeker | 1,044 | 23 | 3 | Gross Alpha |
| Colony | 1,032 | 4 | 1 | Stage 2 DBP |
| Braggs | 1,030 | 32 | 4 | Nitrate |
| Stillwell | 1,025 | 25 | 0 | |
| Fletcher | 1,022 | 228 | 10 | Gross Alpha, Nitrate, Selenium +1 more |
| Boley | 1,000 | 1,051 | 17 | Gross Alpha, Nitrate, Stage 2 DBP |
| Weleetka | 998 | 250 | 134 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Red Oak | 993 | 173 | 41 | Contaminant 2920, Fecal Coliform, Stage 2 DBP +2 more |
| Waynoka | 993 | 18 | 1 | Nitrate-Nitrite |
| Cheyenne | 978 | 206 | 48 | E. coli, Fecal Coliform, Nitrate +3 more |
| Velma | 960 | 35 | 3 | Gross Alpha, Nitrate |
| Albion | 959 | 150 | 92 | Gross Alpha, Nitrate, TTHM +1 more |
| Langley | 950 | 33 | 13 | Fecal Coliform, Nitrate, TTHM +1 more |
| Morrison | 950 | 51 | 3 | Gross Alpha, Stage 2 DBP, TTHM |
| Texhoma | 935 | 47 | 1 | Nitrate |
| Hodgen | 923 | 126 | 82 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Kremlin | 920 | 326 | 54 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Dewar | 917 | 55 | 33 | Gross Alpha, Stage 2 DBP, TTHM +1 more |
| Cashion | 900 | 14 | 2 | Gross Alpha, Nitrate |
| Fittstown | 896 | 21 | 2 | E. coli, Stage 2 DBP |
| Haileyville | 889 | 87 | 41 | Gross Alpha, Stage 2 DBP, TTHM +1 more |
| Davenport | 881 | 156 | 130 | Gross Alpha, TTHM, Total Haloacetic Acids (HAA5) |
| Mountain View | 880 | 37 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Tyrone | 880 | 77 | 9 | Gross Alpha, Nitrate, Stage 2 DBP |
| New Port Richey | 860 | 55 | 13 | E. coli, Fecal Coliform |
| Seiling | 860 | 41 | 9 | Gross Alpha, Nitrate |
| Sentinel | 859 | 7 | 1 | Nitrate |
| Kiowa | 856 | 324 | 195 | Contaminant 2920, E. coli, Fecal Coliform +6 more |
| Hendrix | 820 | 364 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Roff | 800 | 69 | 20 | Nitrate, Stage 2 DBP |
| Ryan | 800 | 308 | 295 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Savanna | 800 | 51 | 30 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Wright City | 792 | 164 | 117 | TTHM, Total Haloacetic Acids (HAA5) |
| South Coffeyville | 790 | 59 | 10 | Surface Water Treatment |
| Butler | 782 | 82 | 1 | Stage 2 DBP |
| Sterling | 762 | 61 | 13 | Gross Alpha, Nitrate, Stage 2 DBP |
| Mutual | 755 | 90 | 6 | Gross Alpha, Stage 2 DBP |
| Millerton | 755 | 157 | 111 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Canton | 750 | 41 | 3 | Nitrate |
| Twin Oaks | 750 | 47 | 1 | Stage 2 DBP |
| Arapaho | 748 | 57 | 6 | Gross Alpha, Nitrate |
| Duke | 743 | 150 | 56 | Gross Alpha, Nitrate, Selenium +2 more |
| Copan | 733 | 189 | 84 | E. coli, Fecal Coliform, Nitrate +3 more |
| Nashoba | 725 | 165 | 120 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Binger | 708 | 69 | 6 | Nitrate, Stage 2 DBP |
| Vici | 668 | 49 | 11 | Nitrate, Nitrate-Nitrite, Selenium |
| Fort Cobb | 667 | 18 | 3 | Nitrate-Nitrite, Stage 2 DBP |
| Verden | 659 | 33 | 10 | Gross Alpha, Selenium |
| Luther | 650 | 30 | 7 | Gross Alpha, Nitrate |
| Carney | 649 | 53 | 11 | Gross Alpha, HAA5, Nitrate |
| Alex | 635 | 136 | 9 | Gross Alpha, Nitrate, Stage 2 DBP |
| Glencoe | 628 | 137 | 113 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Union City | 618 | 78 | 62 | TTHM |
| Fort Towson | 611 | 60 | 24 | E. coli, Fecal Coliform, Gross Alpha +1 more |
| Paoli | 610 | 110 | 13 | Gross Alpha, Nitrate, Stage 2 DBP |
| Olustee | 607 | 152 | 118 | TTHM |
| Coleman | 600 | 105 | 2 | Nitrate |
| Washington | 600 | 103 | 9 | Gross Alpha, Nitrate, Selenium +1 more |
| Smithville | 600 | 31 | 24 | E. coli, Stage 2 DBP, TTHM +1 more |
| Gans | 600 | 74 | 5 | Stage 2 DBP, TTHM |
| Mannsville | 587 | 50 | 6 | Gross Alpha, Nitrate |
| Lahoma | 577 | 10 | 1 | Nitrate |
| Oakhurst | 575 | 87 | 22 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Hammon | 568 | 18 | 1 | Stage 2 DBP |
| Bokchito | 564 | 35 | 6 | Gross Alpha, Nitrate, TTHM |
| Keota | 564 | 183 | 124 | Gross Alpha, Nitrate, Stage 2 DBP +2 more |
| Mccurtain | 560 | 234 | 180 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Depew | 555 | 38 | 7 | Gross Alpha |
| Covington | 553 | 14 | 0 | |
| Dibble | 550 | 13 | 8 | Contaminant 1006 |
| Red Rock | 543 | 520 | 188 | Bromate, Contaminant 2920, E. coli +5 more |
| Osage | 540 | 666 | 14 | Gross Alpha, Nitrate, Stage 2 DBP |
| Forgan | 532 | 28 | 6 | Nitrate, Stage 2 DBP |
| Cement | 530 | 38 | 1 | Stage 2 DBP |
| Tupelo | 527 | 76 | 9 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Dill City | 526 | 58 | 34 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Canute | 524 | 297 | 24 | Nitrate-Nitrite, Selenium, Stage 2 DBP |
| Marland | 517 | 154 | 26 | Disinfection Byproducts, Gross Alpha, Nitrate +1 more |
| Boynton | 510 | 356 | 157 | E. coli, Gross Alpha, Stage 2 DBP +2 more |
| Achille | 506 | 30 | 3 | Gross Alpha, Nitrate |
| Bernice | 504 | 258 | 14 | Gross Alpha, HAA5, Lead +1 more |
| Corn | 500 | 74 | 10 | Barium, Nitrate, Stage 2 DBP |
| Hennepin | 500 | 85 | 78 | Nitrate, Stage 2 DBP, TTHM +1 more |
| San Jose | 500 | 13 | 0 | |
| Dustin | 496 | 144 | 21 | Disinfection Byproducts, Fecal Coliform, Gross Alpha +3 more |
| Arnett | 496 | 622 | 13 | Gross Alpha, Nitrate |
| Mountain Park | 473 | 74 | 63 | E. coli, Stage 2 DBP, TTHM |
| Eucha | 465 | 20 | 1 | TTHM |
| Ravia | 459 | 57 | 8 | Gross Alpha, Nitrate, Stage 2 DBP |
| Delaware | 456 | 495 | 14 | Contaminant 2920 |
| Wynona | 450 | 60 | 6 | Gross Alpha, Nitrate |
| Bokoshe | 450 | 106 | 60 | Gross Alpha, Nitrate, TTHM +1 more |
| Tryon | 448 | 315 | 23 | Arsenic, Contaminant 1008, HAA5 +4 more |
| Paden | 446 | 35 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Eldorado | 446 | 66 | 25 | Nitrate, TTHM |
| Lone Wolf | 445 | 76 | 14 | Nitrate, Nitrate-Nitrite, Stage 2 DBP |
| Wakita | 444 | 106 | 17 | Gross Alpha, Nitrate, Selenium +1 more |
| Helena | 443 | 119 | 4 | Disinfection Byproducts, Nitrate, Stage 2 DBP |
| Billings | 436 | 176 | 5 | E. coli, Nitrate, Selenium |
| North Miami | 433 | 44 | 2 | Nitrate, Stage 2 DBP |
| Spavinaw | 432 | 13 | 1 | E. coli |
| Gage | 429 | 69 | 15 | Gross Alpha, Nitrate, Selenium +1 more |
| Prue | 429 | 1,967 | 10 | Disinfection Byproducts, Gross Alpha, Nitrate +1 more |
| Capron | 426 | 83 | 8 | Gross Alpha, Nitrate, Stage 2 DBP |
| Ringwood | 424 | 25 | 5 | Nitrate |
| Wapanucka | 420 | 62 | 6 | Gross Alpha, Nitrate |
| Welling | 418 | 16 | 0 | |
| Lamont | 417 | 762 | 8 | Gross Alpha, Nitrate, Stage 2 DBP |
| Nicoma Park | 414 | 379 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Turpin | 412 | 483 | 11 | E. coli, Gross Alpha, Lead +1 more |
| Drummond | 405 | 32 | 8 | Gross Alpha, Nitrate |
| Sparks | 404 | 42 | 4 | Contaminant 2920, Gross Alpha, Nitrate |
| Wanette | 402 | 289 | 167 | Disinfection Byproducts, Stage 2 DBP, TTHM +1 more |
| Dover | 400 | 34 | 10 | Gross Alpha, Nitrate, Selenium +1 more |
| Jennings | 400 | 379 | 11 | Gross Alpha, Nitrate, Stage 2 DBP |
| Optima | 400 | 210 | 8 | Gross Alpha, Nitrate, Stage 2 DBP |
| Lehigh | 396 | 17 | 2 | Gross Alpha, Stage 2 DBP |
| Francis | 390 | 69 | 8 | Gross Alpha, Nitrate |
| Terral | 386 | 62 | 10 | Gross Alpha, Nitrate, Nitrate-Nitrite +2 more |
| Medicine Park | 382 | 65 | 4 | Gross Alpha, Nitrate, Stage 2 DBP |
| Ripley | 376 | 65 | 6 | Nitrate, Stage 2 DBP |
| Davidson | 375 | 132 | 63 | Gross Alpha, Nitrate, Nitrate-Nitrite +3 more |
| Asher | 375 | 230 | 181 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
| Swink | 373 | 49 | 31 | Nitrate, Stage 2 DBP, TTHM +1 more |
| Taloga | 372 | 37 | 5 | Selenium |
| Kaw City | 372 | 89 | 4 | Disinfection Byproducts, Nitrate |
| Longdale | 363 | 41 | 13 | Gross Alpha, Nitrate |
| Avant | 361 | 285 | 143 | Fecal Coliform, Stage 2 DBP, TTHM +1 more |
| Sasakwa | 360 | 264 | 5 | Nitrate, Stage 2 DBP |
| Clarita | 360 | 30 | 12 | E. coli, Gross Alpha, Nitrate +2 more |
| Carmen | 355 | 440 | 56 | Nitrate, Nitrate-Nitrite, Selenium +1 more |
| Indiahoma | 350 | 154 | 96 | Disinfection Byproducts, Nitrate, Stage 2 DBP +1 more |
| Burneyville | 350 | 23 | 8 | Gross Alpha, Nitrate |
| Park Hill | 348 | 549 | 29 | Contaminant 2920, E. coli, Fecal Coliform +5 more |
| Cromwell | 337 | 89 | 67 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Gracemont | 336 | 246 | 19 | Gross Alpha, Nitrate, Stage 2 DBP |
| Ralston | 335 | 73 | 8 | Gross Alpha, Nitrate |
| Fort Supply | 328 | 22 | 4 | Nitrate, Stage 2 DBP |
| Fargo | 326 | 56 | 9 | Gross Alpha, Nitrate, Selenium |
| Cleo Springs | 326 | 49 | 36 | Nitrate, Nitrate-Nitrite |
| Randlett | 320 | 56 | 26 | Stage 2 DBP, TTHM |
| Milburn | 317 | 22 | 5 | Gross Alpha, Nitrate |
| Freedom | 317 | 130 | 10 | Gross Alpha, Nitrate, Stage 2 DBP |
| Watts | 316 | 30 | 0 | |
| Keyes | 315 | 65 | 14 | Gross Alpha, Lead, Nitrate |
| Mill Creek | 310 | 26 | 11 | Gross Alpha, Nitrate, Stage 2 DBP |
| Hanna | 308 | 91 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Bennington | 302 | 125 | 7 | Disinfection Byproducts, Gross Alpha, Nitrate |
| Soper | 300 | 132 | 14 | Nitrate, TTHM, Total Haloacetic Acids (HAA5) |
| Marina Del Rey | 300 | 50 | 4 | E. coli, Gross Alpha, Stage 2 DBP |
| Pocasset | 300 | 311 | 10 | Gross Alpha, Nitrate, Stage 2 DBP |
| Calvin | 300 | 54 | 5 | Nitrate, cis-1,2-Dichloroethylene |
| Leon | 300 | 57 | 8 | Gross Alpha, Nitrate |
| Arcadia | 300 | 31 | 9 | TTHM |
| Lenapah | 298 | 84 | 49 | E. coli, Gross Alpha, Nitrate +1 more |
| Coyle | 289 | 7 | 0 | |
| Pittsburg | 280 | 309 | 181 | Disinfection Byproducts, Fecal Coliform, Gross Alpha +2 more |
| Roosevelt | 280 | 139 | 6 | Gross Alpha, Nitrate, Stage 2 DBP |
| Eakly | 277 | 395 | 150 | Barium, Gross Alpha, Nitrate +2 more |
| Hardesty | 277 | 308 | 10 | Gross Alpha, Lead, Nitrate |
| Lookeba | 275 | 117 | 68 | Barium, Gross Alpha, Nitrate |
| Byars | 275 | 49 | 14 | Gross Alpha, Nitrate |
| Blue Jacket | 274 | 464 | 10 | Gross Alpha, Lead, Nitrate +1 more |
| Gotebo | 272 | 19 | 2 | Gross Alpha, Nitrate |
| Goltry | 268 | 34 | 10 | Disinfection Byproducts, Gross Alpha, Nitrate +1 more |
| Kendrick | 266 | 172 | 139 | TTHM, Total Haloacetic Acids (HAA5) |
| Ladera Ranch | 250 | 84 | 1 | Stage 2 DBP |
| Taft | 250 | 190 | 59 | Gross Alpha, Nitrate, TTHM +1 more |
| Braman | 244 | 32 | 17 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Sawyer | 235 | 168 | 126 | TTHM, Total Haloacetic Acids (HAA5) |
| Jet | 230 | 128 | 20 | Disinfection Byproducts, Gross Alpha, Nitrate +1 more |
| Longwood | 225 | 664 | 1 | Gross Alpha |
| St. Louis | 225 | 29 | 3 | Nitrate, Stage 2 DBP |
| Mulhall | 225 | 33 | 4 | Gross Alpha, Stage 2 DBP |
| Dallas | 225 | 93 | 1 | Stage 2 DBP |
| Englewood | 225 | 24 | 4 | Gross Alpha, Nitrate, Stage 2 DBP |
| Dougherty | 224 | 82 | 4 | Nitrate, Stage 2 DBP, Total Coliform (TCR) |
| Nash | 224 | 190 | 4 | E. coli, Gross Alpha, Nitrate |
| Aline | 214 | 160 | 114 | Nitrate, Nitrate-Nitrite, Selenium +1 more |
| Martha | 205 | 122 | 67 | Gross Alpha, Stage 2 DBP, TTHM |
| Rocky | 202 | 46 | 3 | Gross Alpha, Nitrate |
| Orlando | 201 | 1 | 0 | |
| Denver | 200 | 72 | 5 | Nitrate, Stage 2 DBP |
| Ames | 199 | 56 | 27 | Barium, Gross Alpha, Nitrate +1 more |
| Meno | 195 | 515 | 26 | Arsenic, Barium, Gross Alpha +2 more |
| Bessie | 190 | 12 | 2 | Nitrate |
| Reydon | 177 | 98 | 12 | Gross Alpha, Nitrate, Stage 2 DBP |
| Sharon | 175 | 475 | 2 | Gross Alpha, Stage 2 DBP |
| Hallett | 168 | 130 | 7 | Gross Alpha, Nitrate, Stage 2 DBP |
| Kenefic | 165 | 201 | 15 | Gross Alpha, Nitrate, Stage 2 DBP |
| Bromide | 163 | 37 | 6 | Nitrate |
| Burlington | 156 | 36 | 5 | Gross Alpha, Nitrate |
| Red Bird | 153 | 165 | 14 | Gross Alpha, Nitrate, Stage 2 DBP +1 more |
| Camargo | 150 | 75 | 7 | Nitrate, Stage 2 DBP |
| Devol | 150 | 68 | 47 | TTHM |
| Burbank | 150 | 40 | 0 | |
| Slick | 148 | 103 | 4 | Nitrate, Stage 2 DBP |
| Dacoma | 148 | 25 | 1 | Stage 2 DBP |
| Fairmont | 147 | 88 | 22 | Barium, Disinfection Byproducts, Gross Alpha +2 more |
| Deer Creek | 147 | 204 | 71 | Barium, Nitrate, Nitrate-Nitrite +2 more |
| Hitchcock | 141 | 80 | 13 | Nitrate, Selenium |
| Foss | 139 | 296 | 4 | Nitrate, Stage 2 DBP |
| Lincoln | 136 | 41 | 0 | |
| Adams | 135 | 64 | 5 | Nitrate |
| Faxon | 134 | 39 | 3 | Gross Alpha, Stage 2 DBP |
| Oakwood | 129 | 49 | 22 | Gross Alpha, Nitrate |
| Greenfield | 123 | 99 | 1 | Stage 2 DBP |
| Willow | 114 | 684 | 18 | Gross Alpha, Nitrate-Nitrite, Selenium +1 more |
| Jose | 114 | 16 | 2 | Nitrate, Stage 2 DBP |
| Hillsdale | 110 | 126 | 5 | Nitrate, Stage 2 DBP |
| Tullahassee | 106 | 257 | 94 | Gross Alpha, Stage 2 DBP, TTHM +1 more |
| Manchester | 104 | 321 | 3 | Gross Alpha, Nitrate, Stage 2 DBP |
| Bird Island | 100 | 40 | 12 | Stage 2 DBP, TTHM, Total Haloacetic Acids (HAA5) |
Data Sources
Drinking water data from the EPA Safe Drinking Water Information System (SDWIS). Only active community water systems (CWS) serving 100+ people are included.