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 |
|---|---|---|---|---|
|
Bellemont Water Company Bellemont · Coconino County |
100 | 7 | 2 | |
|
Caballeros Water Company Wickenburg · Maricopa County |
100 | 3 | 0 | |
|
Canyon West RV Park LLC Kingman · Mohave County |
100 | 2 | 0 | |
|
Chapache Water Coop Alpine · Apache County |
100 | 1 | 0 | |
|
Dairy Springs Water Assoc Mormon Lake · Coconino County |
100 | 2 | 0 | |
|
Hidden Meadow Ranch Greer · Apache County |
100 | 3 | 1 | |
|
Hualapai MT Resort Kingman · Mohave County |
100 | 1 | 0 | |
|
Inn Wickenburg Wickenburg · Maricopa County |
100 | 1 | 0 | |
|
Kays Cafe Phoenix · Maricopa County |
100 | 1 | 0 | |
|
Longbranch Saloon Cashion · Maricopa County |
100 | 1 | 0 | |
|
Maricopa Agriculture Center Maricopa · Pinal County |
100 | 6 | 0 | |
|
Parks Feed and Mercantile Parks · Coconino County |
100 | 2 | 1 | |
|
Peakview Country Store Flagstaff · Coconino County |
100 | 1 | 0 | |
|
See Canyon Homes INC HOA Christopher Creek · Gila County |
100 | 1 | 0 | |
|
Settlin Inn RV Park Golden Valley · Mohave County |
100 | 2 | 0 | |
|
Usfs Conf Oak Creek Visitor Center Oak Creek Canyon · Coconino County |
100 | 2 | 1 | |
|
Viola's Flower Garden Flagstaff · County |
100 | 1 | 0 | |
|
West Rim Gas & Mini Mart Meadview · Mohave County |
100 | 1 | 0 | |
|
Wisdom Cafe Tumacacori · Santa Cruz County |
100 | 3 | 0 | |
|
Yucca Pride Travel Center Yucca · Mohave County |
100 | 2 | 0 | |
|
LA Mesa Verde RV Park Bouse · La Paz County |
96 | 2 | 0 | |
|
G & L Mobile Park Yuma · Yuma County |
90 | 6 | 1 | |
|
Grand Canyon Western Ranch Meadview · Mohave County |
90 | 1 | 0 | |
|
Heckethorn Water Company Flagstaff · Coconino County |
90 | 6 | 1 | |
|
Morenga Palms RV Park Wenden · La Paz County |
90 | 1 | 0 | |
|
White Tank Well INC Surprise · Maricopa County |
87 | 3 | 0 | |
|
Superior Products of AZ Chandler · Maricopa County |
85 | 4 | 1 | |
|
Pinecrest Water Company Nutrioso · Apache County |
84 | 3 | 2 | |
|
Tal WI WI Water Users Alpine · Apache County |
84 | 3 | 1 | |
|
Basecamp RV LLC Clay Springs · Navajo County |
80 | 1 | 0 | |
|
Kinlichee Staff Housing Bia Kinlichee · County |
80 | 5 | 1 | |
|
Sontel Water Coop Gilbert · Maricopa County |
80 | 4 | 0 | |
|
Usfs Knf Tusayan Admin Tusayan · Coconino County |
80 | 6 | 1 | |
|
Villa la Paz RV Park Bouse · La Paz County |
80 | 1 | 0 | |
|
Two Tanks Community Well Surprise · Maricopa County |
76 | 6 | 2 | |
|
Arizona Proving Ground Wittmann · Maricopa County |
75 | 5 | 1 | |
|
Mountain View Mobile Village Yuma · Yuma County |
75 | 6 | 0 | |
|
Twin Oaks Bar and Cafe Oak Creek Canyon · Coconino County |
75 | 3 | 0 | |
|
Canyon Vista Estates Show Low · Navajo County |
68 | 3 | 1 | |
|
Rim Resort Forest Lakes · Coconino County |
65 | 2 | 0 | |
|
Buckeye Armed Forces Reserve Center Buckeye · Maricopa County |
63 | 3 | 0 | |
|
Orchard Canyon Lodge Sedona · Coconino County |
60 | 2 | 1 | |
|
Super 8 Motel Quartzsite Quartzsite · La Paz County |
60 | 1 | 0 | |
|
Usfs Conf Manzanita Campground Oak Creek Canyon · Coconino County |
60 | 2 | 0 | |
|
Rio Vista Ranches Mohave Valley · Mohave County |
59 | 6 | 0 | |
|
Blm San Pedro House Sierra Vista · Cochise County |
58 | 4 | 0 | |
|
Red Rock (red Valley) Day School Bia Red Valley · County |
55 | 4 | 2 | |
|
Buenos Aires National Wildlife Refuge Sasabe · Pima County |
54 | 7 | 1 | |
|
Vernon Valley Water System Vernon · Apache County |
54 | 1 | 0 | |
|
Wildcat One Well Coop Vail · Pima County |
52 | 2 | 0 |
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.