Colorado utilities 301 to 400.
Each serves 544 to 1,000 people, as it reports to EPA. Your ZIP code finds yours faster.
301 to 400 of 1,030, by people served
| Utility | Based in | Serves | Regulated PFAS | Health-based violations since 2016 |
|---|---|---|---|---|
| Longview MHP | Lakewood | 1,000 | Not sampled | 0 |
| Town of Ridgway | Ridgway | 1,000 | Not sampled | 4 |
| Brook Forest WD | Highlands Ranch | 998 | Not sampled | 0 |
| Poudre Valley Mhc | Aurora | 985 | Not sampled | 0 |
| Town of Antonito | Antonito | 981 | None found | 8 |
| Town of Manassa | Manassa | 976 | Not sampled | 0 |
| Town of Haxtun | Haxtun | 963 | Not sampled | 0 |
| Town of Stratton | Stratton | 960 | Not sampled | 3 |
| Town of Oak Creek | Oak Creek | 950 | Not sampled | 12 |
| Collins Aire Mhc | Aurora | 946 | Not sampled | 0 |
| Durango West MD No 2 | Durango | 930 | Not sampled | 2 |
| Park Forest | Colorado Springs | 930 | Not sampled | 1 |
| Town of Debeque | Debeque | 911 | Not sampled | 3 |
| Kiowa Water and Wastewater Authority | Kiowa | 910 | Not sampled | 0 |
| Town of Fairplay | Fairplay | 909 | Not sampled | 2 |
| Arbordale Acres MHP | Lafayette | 901 | Not sampled | 1 |
| Bents Fort WC | La Junta | 900 | Not sampled | 0 |
| Garden Valley | Colorado Springs | 900 | Not sampled | 4 |
| Rmnp Headquarters East | Estes Park | 900 | Not sampled | 0 |
| Boulder Ridge MHP | Lafayette | 897 | Not sampled | 0 |
| Two Rivers Village | Edwards | 896 | None found | 0 |
| Midlands Village | Montrose | 893 | Not sampled | 0 |
| Town of Hugo | Hugo | 885 | Not sampled | 1 |
| Quail Hill Mobile Home Park | Los Angeles | 878 | Not sampled | 0 |
| San Juan River Village MD | Pagosa Springs | 877 | Not sampled | 1 |
| Highland Lakes WD | Divide | 875 | Not sampled | 3 |
| Town of Nucla | Nucla | 875 | Not sampled | 2 |
| Countryside Village of Denver | Lakewood | 863 | Not sampled | 0 |
| Roxborough Nw Douglas County | Littleton | 860 | Not sampled | 0 |
| Piedra Park MD | Bayfield | 850 | Not sampled | 1 |
| Town of Dove Creek | Dove Creek | 850 | Not sampled | 7 |
| Town of la Veta | La Veta | 850 | Not sampled | 5 |
| Town of Sanford | Sanford | 850 | Not sampled | 0 |
| San Lazaro Mfctd Housing Community | Lafayette | 844 | Not sampled | 3 |
| Columbine Lakes HOA | Littleton | 843 | Not sampled | 0 |
| Lago Vista Mobile Home Park | Loveland | 842 | Not sampled | 0 |
| Rogers Mesa WC | Hotchkiss | 840 | Not sampled | 1 |
| Town of Cheyenne Wells | Cheyenne Wells | 840 | Not sampled | 4 |
| Villa West | Lakewood | 833 | Not sampled | 0 |
| Golden Terrace West | Golden | 825 | None found | 1 |
| Town of la Jara | La Jara | 825 | Not sampled | 0 |
| Baseline WD | Boulder | 820 | Not sampled | 0 |
| Hickory Village | Windsor | 816 | Not sampled | 0 |
| River Valley Mhc | Littleton | 803 | Not sampled | 0 |
| Candlewood Park | Clifton | 800 | Not sampled | 0 |
| Gunnison County WSD | Gunnison | 800 | Not sampled | 0 |
| Morrison Creek Metro District | Oak Creek | 800 | Not sampled | 0 |
| Sage WUA | Peyton | 800 | Not sampled | 0 |
| Town of Holly | Holly | 800 | Not sampled | 27 |
| Town of Ignacio | Ignacio | 800 | Not sampled | 2 |
| Deer Creek WD | Wheat Ridge | 792 | Not sampled | 1 |
| Town of Calhan | Calhan | 780 | Not sampled | 1 |
| Countryside of Longmont | Longmont | 775 | Not sampled | 0 |
| Town of Williamsburg | Williamsburg | 775 | Not sampled | 0 |
| Forest View Acres WD | Castle Rock | 772 | Not sampled | 3 |
| The Meadows | Aurora | 758 | Not sampled | 0 |
| Woodshire East Mobile Home Park Ltd | Los Angeles | 751 | Not sampled | 0 |
| Academy WSD | Castle Rock | 750 | Not sampled | 0 |
| Cottonwood Springs MHP | Rifle | 750 | Not sampled | 0 |
| Durango West MD No 1 | Durango | 750 | Not sampled | 2 |
| Elbert Creek Water Co | Durango | 750 | Not sampled | 5 |
| Vista Village MHP | Boulder | 750 | Not sampled | 1 |
| Pinewood Springs WD | Greenwood Village | 745 | Not sampled | 27 |
| Town of Rye | Rye | 745 | Not sampled | 50 |
| MT Vernon Country Club | Castle Rock | 734 | Not sampled | 7 |
| Colorado Mtn College Svc | Glenwood Springs | 715 | Not sampled | 1 |
| Mile High WC | Broomfield | 700 | Not sampled | 1 |
| Town of Hot Sulphur Springs | Hot Sulphur Springs | 687 | Not sampled | 0 |
| Mountain Mutual WA | Cripple Creek | 681 | Not sampled | 0 |
| Divide Mpc MD No 1 | Divide | 679 | Not sampled | 0 |
| Town of Collbran | Collbran | 678 | Not sampled | 0 |
| Keystone Ranch | Keystone | 670 | Not sampled | 1 |
| Hoover Hills WSD | Golden | 662 | Not sampled | 0 |
| Friendly Village of Greeley MHP | Lakewood | 660 | Not sampled | 1 |
| Town of Swink | Swink | 660 | Not sampled | 2 |
| Town of Eads | Eads | 656 | Not sampled | 0 |
| El Moro Hoehne Pipeline Assoc | Trinidad | 655 | Not sampled | 0 |
| Prairie Greens MHP | Frederick | 654 | Not sampled | 1 |
| Lamplighter MHP | Lakewood | 651 | Not sampled | 0 |
| Town of Walsh | Walsh | 650 | Not sampled | 19 |
| Lamplighter Rhp | Colorado Springs | 643 | Not sampled | 0 |
| San Luis WSD | San Luis | 629 | Not sampled | 0 |
| Canyon Ridge | Colorado Springs | 625 | Not sampled | 0 |
| South Swink Water Authority | La Junta | 622 | Not sampled | 113 |
| Town of Simla | Simla | 618 | Not sampled | 0 |
| Teller County WSD | Woodland Park | 600 | Not sampled | 8 |
| Town of Otis | Otis | 600 | Not sampled | 1 |
| Town of Walden | Walden | 600 | Not sampled | 0 |
| Town of Lake City | Lake City | 587 | Not sampled | 1 |
| Town of Naturita | Naturita | 585 | Not sampled | 7 |
| Golden Terrace Village | Wheat Ridge | 580 | Not sampled | 1 |
| Kv HOA Inc | Moffat | 580 | Not sampled | 1 |
| Ymca Snow Mtn Ranch | Granby | 578 | None found | 0 |
| Divide Water Providers Inc | Divide | 570 | Not sampled | 0 |
| Independence WSD | Denver | 567 | Not sampled | 0 |
| Town of South Fork West Municipal | South Fork | 566 | Not sampled | 0 |
| Tabernash Meadows WSD | Tabernash | 564 | Not sampled | 0 |
| Costilla County WS | San Luis | 561 | Not sampled | 0 |
| Cimarron Creek | Montrose | 560 | Not sampled | 0 |
| St Vrain MHP LLC | Longmont | 544 | Not sampled | 0 |
Every utility EPA sampled for PFAS under UCMR 5, any other community system serving 3,300 people or more, and any smaller one with results from 2020 on, from the state. Other systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q3, UCMR 5 and EPA’s 2012 to 2019 compliance results, and Colorado Department of Public Health and Environment, Water Quality Control Division.
Where to go next
- Read your utility’s own reportIt covers contaminants these pages don’t show, and its own latest results.How to read it
- Every contaminantLegal limits, health goals and what handles each one.All contaminants
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