Arizona
La Paz County drinking water quality
87 active public water systems serve 30,973 people in La Paz County. 30 are compliant, 57 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 4 carry a health flag.
Needs attention
Community water systems
22 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Quartzsite Town of Quartzsite |
2,761 | 2 | 0 | |
|
Epcor Lakeside Parker |
1,775 | 0 | 0 | |
|
CS Harrisburg Utility Company Salome |
1,759 | 4 | 0 | |
|
Epcor Moovalya Keys Parker |
1,298 | 1 | 0 | |
|
CS Q Mountain Water Company Quartzsite |
1,224 | 1 | 0 | |
|
Ehrenberg Improvement District Ehrenberg |
989 | 1 | 0 | |
|
Epcor Holiday Harbor Parker |
559 | 1 | 0 | |
|
Epcor Marina Village Parker |
528 | 1 | 0 | |
|
88 Shades RV Park Quartzsite |
488 | 1 | 0 | |
|
Hillcrest Water Company Parker Dam |
459 | 1 | 0 | |
|
Q Mountain Vista MHP Quartzsite |
440 | 0 | 0 | |
|
Epcor Parker Dam Parker |
429 | 1 | 0 | |
|
Wenden Dwid Wenden |
360 | 3 | 0 | |
|
Salome Water Company Salome |
289 | 4 | 1 | |
|
Bouse Dwid Bouse |
284 | 7 | 1 | |
|
Vicksburg Farm Vicksburg |
220 | 2 | 0 | |
|
Just for Fun RV Park Bouse |
212 | 1 | 1 | |
|
Cibola Water Improvement District Cibola |
197 | 8 | 2 | |
|
Cienega Water Company INC Parker |
108 | 8 | 2 | |
|
Epcor Rio Lindo Parker |
79 | 0 | 0 | |
|
Desert Sky Dwid Salome |
72 | 4 | 1 | |
|
Shady Spot RV Park Quartzsite |
44 | 1 | 1 |
Non-community systems (65: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (104, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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. Retrieved from ECHO on Oct 11, 2026.