Revised Total Coliform Rule (RTCR) violations in Arizona
493 active public water systems in Arizona had a Revised Total Coliform Rule (RTCR) violation in the past three years, 204 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bent River Apt Enchantment Resort Sedona · Yavapai County |
50 | 3 | 0 | |
|
Don Hoel Cabins Oak Creek Canyon · Coconino County |
50 | 3 | 1 | |
|
Fort Willcox RV Park Willcox · Cochise County |
50 | 2 | 0 | |
|
Usfs Tnf Pleasant Valley North Young · Gila County |
50 | 2 | 0 | |
|
Veterans of Foreign Wars Post 2357 Bouse · La Paz County |
50 | 4 | 0 | |
|
Young Public School Young · Gila County |
50 | 4 | 1 | |
|
Northern Section 4 Coop Apache Junction · Pinal County |
48 | 6 | 3 | |
|
Ntm Aviation Mcneal · Cochise County |
47 | 4 | 0 | |
|
Lakeside Ski Village Lakeside Ski Village · Maricopa County |
46 | 2 | 0 | |
|
Greenlee Country Club York · Greenlee County |
45 | 2 | 0 | |
|
Joshua Tree Water Company Dolan Springs · Mohave County |
45 | 4 | 3 | |
|
Lukeville Border Station Lukeville · Pima County |
45 | 1 | 0 | |
|
Pines to Palms Mobile Home RV Park Beaver Dam · Mohave County |
45 | 3 | 1 | |
|
67 Ave Property Owners Association Phoenix · Maricopa County |
40 | 5 | 2 | |
|
Davis Ranch Land Owners Red Rock · Pinal County |
40 | 3 | 1 | |
|
Hannagan Meadows Lodge Alpine · Greenlee County |
40 | 3 | 0 | |
|
Jackrabbit Jackrabbit · County |
40 | 1 | 0 | |
|
CS Old Concho Water Users Concho · Apache County |
40 | 7 | 0 | |
|
Pine Ridge Estates Alpine · Apache County |
40 | 3 | 1 | |
|
Rockhouse River Ranch LLC Roosevelt · Gila County |
40 | 1 | 0 | |
|
Youth Haven Ranches Tucson · Pinal County |
40 | 2 | 0 | |
|
McNeal Elementary School Mcneal · Cochise County |
38 | 3 | 0 | |
|
Briar Patch Resort Oak Creek Canyon · Coconino County |
36 | 2 | 1 | |
|
Coronado Forest Drive Water Coop Catalina · Pima County |
34 | 3 | 1 | |
|
EL Rancho Robles Oracle · Pinal County |
34 | 1 | 0 | |
|
Stage Coach Trails Guest Ranch Lake Havasu City · Mohave County |
34 | 3 | 0 | |
|
Usfs Conf Double Springs Mormon Lake · Coconino County |
32 | 4 | 1 | |
|
Arrowhead Mobile Home Park Congress · Yavapai County |
30 | 2 | 0 | |
|
Blm Burro Creek Campground Kingman · Mohave County |
30 | 4 | 2 | |
|
Cocopah Bend & RV Vending County |
30 | 2 | 1 | |
|
Indian Hills Estates Winkelman · Pinal County |
30 | 5 | 0 | |
|
Oak Creek Estates Sedona · Coconino County |
30 | 1 | 0 | |
|
Soldier Camp Permittees Summerhaven · Pima County |
30 | 3 | 0 | |
|
Jones Coop Water Assoc Yuma · Yuma County |
29 | 7 | 0 | |
|
Gatlin Water Company Iwx Kingman · Mohave County |
28 | 4 | 1 | |
|
Buckeye Congregation of Jehovahs Witness Phoenix · Maricopa County |
25 | 1 | 0 | |
|
Creekside Lodge and Cabins Mayer · Yavapai County |
25 | 1 | 0 | |
|
Gringo Pass TP Lukeville · Pima County |
25 | 1 | 0 | |
|
Jakes Corner Bar Payson · Gila County |
25 | 1 | 0 | |
|
Meadview RV Park Meadview · Mohave County |
25 | 1 | 0 | |
|
Pleasant Valley Community Young · Gila County |
25 | 2 | 0 | |
|
Rancho de los Caballeros Wickenburg · Maricopa County |
25 | 2 | 0 | |
|
Silver Creek Water Company Oatman · Mohave County |
25 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) 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 Arizona 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.