Nitrate violations in Colorado
209 active public water systems in Colorado had a Nitrate violation in the past three years, 32 of them in the latest quarter of EPA's data. What Nitrate is and why it matters.
Systems with a Nitrate violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Vona Town of Kit Carson County |
160 | 5 | 1 | |
|
Conifer Community Church Jefferson County |
158 | 1 | 0 | |
|
Rocky Mountain Mennonite Camp Teller County |
155 | 4 | 0 | |
|
Beehive Water Association Otero County |
154 | 9 | 1 | |
|
Western Museum of Mining El Paso County |
153 | 2 | 0 | |
|
Camp Rosalie Park County |
150 | 3 | 2 | |
|
Splashland LLC Alamosa County |
150 | 3 | 1 | |
|
Colorado Properties LLC El Paso County |
148 | 3 | 1 | |
|
Blue Spruce RV Park La Plata County |
135 | 2 | 0 | |
|
Vroman WC Otero County |
125 | 4 | 2 | |
|
Tumbling River Ranch Park County |
124 | 3 | 1 | |
|
Willow Brook Metro District Summit County |
120 | 9 | 0 | |
|
Country Gardens MHP Arapahoe County |
115 | 6 | 2 | |
|
Morning Star Comm Church Larimer County |
112 | 2 | 1 | |
|
Sylvan Lake Visitor Center Eagle County |
109 | 1 | 0 | |
|
Blanca FT Garland MD Costilla County |
108 | 2 | 0 | |
|
Bear Trap Ranch El Paso County |
103 | 3 | 0 | |
|
Spirit of Hope Lutheran Church Douglas County |
102 | 1 | 0 | |
|
Camp Eden Gilpin County |
100 | 3 | 0 | |
|
Fuel BS Convenience Store El Paso County |
100 | 2 | 0 | |
|
Mueller SP Picnic Area Teller County |
100 | 2 | 0 | |
|
Sun Mart 502 Store and Lounge Jefferson County |
100 | 1 | 0 | |
|
Stonewall Shopping Bag Las Animas County |
98 | 3 | 0 | |
|
Cross Bar X Youth Ranch La Plata County |
97 | 2 | 1 | |
|
Goodman Poa La Plata County |
96 | 2 | 1 | |
|
Patterson Valley WC Otero County |
96 | 6 | 1 | |
|
United Church of Christ Parker Hilltop Parker · Douglas County |
95 | 8 | 0 | |
|
River Dance RV Park Eagle County |
94 | 4 | 0 | |
|
Amphitheater CG Ouray County |
92 | 2 | 0 | |
|
Eden Valley Institute Larimer County |
91 | 11 | 1 | |
|
Grandview MHP El Paso County |
90 | 8 | 3 | |
|
YMCA Camp Tumbleson Lake Boulder County |
90 | 2 | 0 | |
|
Valley View Hot Springs Saguache County |
87 | 1 | 0 | |
|
Ridgewood WD Teller County |
84 | 5 | 0 | |
|
KOA Pueblo S Colorado City Pueblo County |
83 | 2 | 0 | |
|
Bailey Library Bailey · Park County |
82 | 1 | 0 | |
|
Granby Ranch Amenities Grand County |
82 | 2 | 0 | |
|
River Church Boulder County |
82 | 2 | 0 | |
|
Alpine Village MHP Teller County |
80 | 4 | 0 | |
|
American Adventure Expeditions Chaffee County |
80 | 1 | 0 | |
|
Crystola Roadhouse Teller County |
80 | 6 | 2 | |
|
Northern Water West Slope Campus Granby · Grand County |
80 | 2 | 0 | |
|
Forest Glen Sports Assoc INC Teller County |
76 | 3 | 1 | |
|
Latigo Trails Equestrian Center El Paso County |
76 | 3 | 0 | |
|
Sun Meadow Estates Garfield County |
75 | 8 | 0 | |
|
Peaks Shadow LLC El Paso County |
67 | 5 | 1 | |
|
Sacred Heart Retreat Jesuits Douglas County |
67 | 1 | 0 | |
|
Steamboat Golf Club INC Routt County |
67 | 5 | 1 | |
|
Crossroads Restaurant Jefferson County |
65 | 1 | 0 | |
|
Rifle Falls State Park Garfield County |
64 | 4 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.