Combined Radium (-226 and -228) violations in Colorado
67 active public water systems in Colorado had a Combined Radium (-226 and -228) violation in the past three years, 26 of them in the latest quarter of EPA's data. What Combined Radium (-226 and -228) is and why it matters.
Systems with a Combined Radium (-226 and -228) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
May Valley WA Prowers County |
1,500 | 3 | 0 | |
|
Holly Town of Prowers County |
800 | 3 | 1 | |
|
Walsh Town of Baca County |
650 | 3 | 0 | |
|
South Swink Water Authority Otero County |
622 | 1 | 0 | |
|
Eureka WC Otero County |
498 | 9 | 1 | |
|
Newdale Grand Valley WC Otero County |
458 | 2 | 2 | |
|
Consolidated Glacier View Meadows Assoc Larimer County |
395 | 3 | 0 | |
|
Valley WC Otero County |
270 | 6 | 2 | |
|
Cheraw Town of Otero County |
254 | 5 | 2 | |
|
Hasty Water Authority Bent County |
244 | 3 | 2 | |
|
Beehive Water Association Otero County |
154 | 9 | 1 | |
|
Pritchett Town of Baca County |
125 | 1 | 0 | |
|
Vroman WC Otero County |
125 | 4 | 2 | |
|
A and B WA INC Prowers County |
100 | 4 | 1 | |
|
West Grand Valley WA Otero County |
100 | 5 | 1 | |
|
Patterson Valley WC Otero County |
96 | 6 | 1 | |
|
Riverside WC Otero County |
90 | 3 | 0 | |
|
Fayette WC Otero County |
75 | 7 | 2 | |
|
East End WA Otero County |
70 | 5 | 1 | |
|
Elephant Rock MHP El Paso County |
60 | 6 | 2 | |
|
Heartwood CO OP Housing La Plata County |
60 | 9 | 1 | |
|
North Holbrook WC Otero County |
58 | 4 | 2 | |
|
Holbrook Center Soft WA Otero County |
54 | 6 | 1 | |
|
South Side WA Otero County |
44 | 9 | 1 | |
|
Pacheco Trailer Park Rio Grande County |
36 | 13 | 3 | |
|
Deep Creek Mountain Valley Estates Mineral County |
31 | 11 | 4 | |
|
East Cherry Creek Valley Wsd Arapahoe County |
66,130 | 1 | 0 | |
|
Mountain Village Town of San Miguel County |
9,700 | 3 | 0 | |
|
Parkville WD Lake County |
7,500 | 2 | 0 | |
|
Walden Wsd El Paso County |
1,500 | 1 | 0 | |
|
Ridgway Town of Ouray County |
1,000 | 5 | 1 | |
|
Brook Forest WD Jefferson County |
998 | 5 | 1 | |
|
Park Forest El Paso County |
930 | 4 | 1 | |
|
Morrison Creek Metro District Routt County |
800 | 3 | 0 | |
|
Independence Wsd Elbert County |
567 | 2 | 1 | |
|
Granada Town of Prowers County |
515 | 12 | 1 | |
|
Manzanola Town of Otero County |
497 | 3 | 2 | |
|
Steamboat Lake WD Routt County |
411 | 5 | 0 | |
|
McClave WA INC Bent County |
378 | 2 | 0 | |
|
Baxter Water and Services Pueblo County |
350 | 10 | 0 | |
|
Dinosaur Town of Moffat County |
350 | 6 | 1 | |
|
Idledale Wsd Jefferson County |
350 | 8 | 1 | |
|
Aspen Village MD Pitkin County |
300 | 8 | 0 | |
|
Ranch at Roaring Fork Garfield County |
300 | 6 | 1 | |
|
Larkspur Town of Douglas County |
275 | 4 | 1 | |
|
Capulin WD Conejos County |
250 | 7 | 1 | |
|
Louviers Wsd Douglas County |
238 | 3 | 0 | |
|
Mountaindale CG and Cabins Fremont County |
228 | 8 | 0 | |
|
Riviere Estates Rio Grande County |
211 | 3 | 1 | |
|
Lazear Domestic WC Delta County |
178 | 8 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Combined Radium (-226 and -228), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Combined Radium (-226 and -228) 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.