Cochise County Water Quality
Arizona
According to EPA SDWIS, Cochise County, Arizona hosts 32 community water systems covering about 104,169 people. The same extract lists 149 health-based violation records across 20 systems. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Cochise County, Arizona hosts 32 EPA-regulated community water systems delivering drinking water to approximately 104,169 people. Each system is catalogued in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which mandates monitoring for dozens of regulated contaminants, public notification when standards are exceeded, and the issuance of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 149 violation records across these active community systems, with 20 systems carrying at least one record. The extract excludes monitoring and reporting violations. The county contains 15 incorporated places where these systems deliver service. 1 Superfund site is also listed within the county.
A historical health-based registry row does not establish water delivered today or describe current compliance. For current conditions, request the utility's most recent Consumer Confidence Report or contact the Arizona drinking water program. Figures shown here reflect only the health-based subset fetched from federal EPA SDWIS.
What water systems serve Cochise County?
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| BELLA VISTA CITY WATER SYSTEM | 20,045 | 0 | Clean |
| LIBERTY WATER RIO RICO | 17,960 | 0 | Clean |
| DOUGLAS CITY OF | 16,656 | 1 | Health |
| US ARMY FORT HUACHUCA | 15,603 | 2 | Health |
| PUEBLO DEL SOL WATER COMPANY | 12,804 | 9 | Health |
| BENSON, CITY OF WATER SYSTEM | 5,355 | 0 | Clean |
| BISBEE DOUGLAS INTL AIRPORT | 2,600 | 2 | Health |
| BELLA VISTA WATER SOUTH | 2,178 | 0 | Clean |
| POMERENE DWID | 1,618 | 17 | Health |
| SOUTHERN SUNRISE WC COCHISE HORSESHOE | 1,588 | 0 | Clean |
| TOMBSTONE CITY OF | 1,545 | 13 | Health |
| ST DAVID DWID | 1,255 | 2 | Health |
| WHETSTONE DWID | 940 | 0 | Clean |
| ELFRIDA WID | 800 | 11 | Health |
| SOUTHERN SUNRISE WC MIRACLE VALLEY | 620 | 0 | Clean |
| NORTHERN SUNRISE WC CORONADO | 553 | 0 | Clean |
| SIERRA VISTA MH VILLAGE | 328 | 2 | Health |
| NORTHERN SUNRISE WC MUSTANG CRYSTAL | 315 | 0 | Clean |
| SAN SIMON DWID | 312 | 56 | Health |
| WILLOW LAKES PROPERTY OWNERS ASSOC | 190 | 12 | Health |
| WHETSTONE RANCH WATER SYSTEM | 183 | 2 | Health |
| STRATMAN WATER COMPANY | 105 | 2 | Health |
| SWEET SPRINGS MOBILE HOME PARK | 85 | 1 | Health |
| COCHISE COLLEGE PARK WATER ASSOC | 83 | 0 | Clean |
| TWIN BUTTES RV, LLC | 79 | 3 | Health |
| NACO ESTATES | 75 | 6 | Health |
| SULGER WATER COMPANY 2 | 67 | 0 | Clean |
| MCNEAL WATER COMPANY | 66 | 2 | Health |
| WHETSTONE VILLAGE MHP | 50 | 1 | Health |
| NTM AVIATION | 47 | 0 | Clean |
| DESERT WINDS MOBILE PARK | 34 | 1 | Health |
| LA COSTA WATER USERS ASSOC | 30 | 4 | Health |
Cities in Cochise County
How does Cochise County compare in Arizona?
Of the 15 Arizona counties with at least one community water system on file, Cochise County ranks #10 by number of systems (32).
Either side of it: Navajo County (45), Mohave County (39), Yuma County (23), La Paz County (12)
What are Cochise County's health-based records for?
Cochise County's health-based violation records carry 7 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results, and a historical record does not establish present water quality.
| Contaminant | Records | Systems |
|---|---|---|
| Fluoride | 58 | 2 |
| Revised Total Coliform Rule | 30 | 8 |
| Lead and Copper Rule Revisions | 21 | 14 |
| Groundwater Rule | 20 | 6 |
| Arsenic | 18 | 2 |
| Surface Water Treatment Rule | 1 | 1 |
| Coliform (TCR) | 1 | 1 |
Superfund Sites in Cochise County
| Site Name | NPL Status | Site Score |
|---|---|---|
| Apache Powder Co. | NPL Site | 39.09 |
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
Figures here are the current EPA SDWIS extract joined to the 32 community water systems whose service area falls in Cochise County, ranked against the 15 Arizona counties with at least one system on file. Data current as of 2026-08-25. Editorial standards, methodology, report an error.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
Read our methodology - how this data is sourced, computed, and verified.