Groundwater Rule (GWR) violations in Arizona
103 active public water systems in Arizona had a Groundwater Rule (GWR) violation in the past three years, 106 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ghr Landowners Assn Water Coop White Hills · Mohave County |
280 | 7 | 2 | |
|
Silver Creek RV Park Bullhead City · Mohave County |
280 | 6 | 0 | |
|
Scua Upper Peridot County |
275 | 4 | 2 | |
|
Sunrise Hotel County |
273 | 1 | 1 | |
|
Crossroads RV Park Bullhead City · Mohave County |
272 | 3 | 2 | |
|
Little Park Water Company Oak Creek Canyon · Yavapai County |
264 | 6 | 4 | |
|
Usfs Conf Crescent Moon Ranch Sedona · Yavapai County |
259 | 2 | 0 | |
|
Crown King Water Company Crown King · Yavapai County |
220 | 6 | 5 | |
|
Desert Shores RV MHP Tucson · Pima County |
220 | 2 | 1 | |
|
Pinedale Estates Dwid Show Low · Navajo County |
208 | 6 | 1 | |
|
Sleepy Hollow RV County |
207 | 6 | 5 | |
|
Carrizo Store County |
203 | 4 | 2 | |
|
Indian Ruins Holbrook · Apache County |
200 | 4 | 0 | |
|
Green Valley MHP Camp Verde · Yavapai County |
190 | 5 | 2 | |
|
Willow Lakes Property Owners Assoc Benson · Cochise County |
190 | 5 | 1 | |
|
Monte Vista Water Company Douglas · Cochise County |
150 | 8 | 1 | |
|
Oak Creek Vineyards Cornville · Yavapai County |
150 | 3 | 1 | |
|
Woodruff Domestic Water Company INC Woodruff · Navajo County |
140 | 5 | 3 | |
|
Roosevelt Resort LLC Roosevelt · Gila County |
139 | 4 | 1 | |
|
Bonita Public School Willcox · Graham County |
128 | 6 | 3 | |
|
Ponderosa Water, L.l.c Strawberry · Gila County |
117 | 5 | 1 | |
|
AZ State Pks Tonto Natural Bridge Spr Payson · Gila County |
100 | 2 | 2 | |
|
James R Custer New River · Maricopa County |
100 | 2 | 2 | |
|
Maricopa Agriculture Center Maricopa · Pinal County |
100 | 6 | 0 | |
|
The Kofa Cafe Salome · La Paz County |
100 | 1 | 1 | |
|
Ak-Chin Santa Cruz Commerce Center County |
94 | 1 | 1 | |
|
Sure Stay Water System Chambers · Apache County |
75 | 3 | 2 | |
|
Twin Oaks Bar and Cafe Oak Creek Canyon · Coconino County |
75 | 3 | 0 | |
|
Desert Sky Dwid Salome · La Paz County |
72 | 4 | 1 | |
|
Picacho Peak Water Company Picacho · Pinal County |
55 | 7 | 1 | |
|
Retaw Water Company Lakeside · Navajo County |
54 | 4 | 2 | |
|
Destination at Oak Creek Oak Creek Canyon · Coconino County |
50 | 4 | 2 | |
|
Bidegain Water Company Kearny · Pinal County |
49 | 6 | 0 | |
|
Beaver Dam East Dwid Beaver Dam Estates · Mohave County |
47 | 4 | 1 | |
|
Usfs Cnf Douglas Ranger Station Douglas · Cochise County |
45 | 2 | 0 | |
|
67 Ave Property Owners Association Phoenix · Maricopa County |
40 | 5 | 2 | |
|
CS Old Concho Water Users Concho · Apache County |
40 | 7 | 0 | |
|
Pine Ridge Estates Alpine · Apache County |
40 | 3 | 1 | |
|
Five Oaks Water Owners Oak Creek Canyon · Coconino County |
36 | 2 | 0 | |
|
Saguaro Mobile Home Park Kearny · Pinal County |
36 | 4 | 0 | |
|
Beaver Dam Filling Station Beaver Dam · Mohave County |
35 | 6 | 0 | |
|
Smithsonian Inst II Amado · Santa Cruz County |
35 | 2 | 1 | |
|
Desert Winds Mobile Park Huachuca City · Cochise County |
34 | 5 | 1 | |
|
Usfs Conf Blue Ridge Ranger Station Clints Well · Coconino County |
32 | 4 | 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 | |
|
Jones Coop Water Assoc Yuma · Yuma County |
29 | 7 | 0 | |
|
Manzanita Restaurant, LLC Cornville · Yavapai County |
25 | 3 | 0 | |
|
Sanders Dollar General Sanders · Apache County |
25 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) 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.