Cochise, AZ
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Cochise in Arizona · Population: 125,458
Cochise, AZ is tracked across three EPA datasets covering 4 Toxics Release Inventory (TRI) facilities, 32 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 37/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 566.4K lbs of reported toxic releases under EPCRA Section 313, while 20 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 48 and a peak AQI of 307 in 2024, with 61% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 225 (61%) | 128 | 11 | 307 |
| 2023 | 272 (75%) | 90 | 3 | 108 |
| 2022 | 291 (80%) | 73 | 1 | 101 |
| 2021 | 259 (71%) | 104 | 2 | 105 |
| 2020 | 271 (74%) | 93 | 2 | 108 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Arizona, see the EPA's AirNow.gov.
Water Systems (32)
| System | Population | Violations |
|---|---|---|
| BELLA VISTA CITY WATER SYSTEM | 20,045 | 0 |
| LIBERTY WATER RIO RICO | 17,960 | 0 |
| DOUGLAS CITY OF | 16,656 | 1 |
| US ARMY FORT HUACHUCA | 15,603 | 1 |
| PUEBLO DEL SOL WATER COMPANY | 12,804 | 8 |
| BENSON, CITY OF WATER SYSTEM | 5,355 | 0 |
| BISBEE DOUGLAS INTL AIRPORT | 2,600 | 2 |
| BELLA VISTA WATER SOUTH | 2,178 | 0 |
| SOUTHERN SUNRISE WC COCHISE HORSESHOE | 1,588 | 0 |
| TOMBSTONE CITY OF | 1,545 | 13 |
| ST DAVID DWID | 1,255 | 2 |
| POMERENE DWID | 1,030 | 14 |
| WHETSTONE DWID | 940 | 0 |
| ELFRIDA WID | 800 | 10 |
| SOUTHERN SUNRISE WC MIRACLE VALLEY | 620 | 0 |
| NORTHERN SUNRISE WC CORONADO | 553 | 0 |
| SIERRA VISTA MH VILLAGE | 328 | 1 |
| NORTHERN SUNRISE WC MUSTANG CRYSTAL | 315 | 0 |
| SAN SIMON DWID | 312 | 53 |
| WILLOW LAKES PROPERTY OWNERS ASSOC | 190 | 11 |
| WHETSTONE RANCH WATER SYSTEM | 183 | 1 |
| STRATMAN WATER COMPANY | 105 | 1 |
| SWEET SPRINGS MOBILE HOME PARK | 85 | 1 |
| COCHISE COLLEGE PARK WATER ASSOC | 83 | 0 |
| TWIN BUTTES RV, LLC | 79 | 3 |
| NACO ESTATES | 75 | 6 |
| SULGER WATER COMPANY 2 | 67 | 0 |
| MCNEAL WATER COMPANY | 66 | 2 |
| WHETSTONE VILLAGE MHP | 50 | 1 |
| NTM AVIATION | 47 | 0 |
| DESERT WINDS MOBILE PARK | 34 | 1 |
| LA COSTA WATER USERS ASSOC | 30 | 4 |
TRI Facilities (4)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Arizona Electric Power Cooperative Inc | 509.5K lbs |
| 2 | Apache Nitrogen Products Inc | 33.3K lbs |
| 3 | U.s.dod US Army Fort Huachuca - Ranges | 17.4K lbs |
| 4 | U.S. Cbp Brian A. Terry (naco) Border Patrol Stn #AZ0040 | 6.2K lbs |
Cities in Cochise (4)
Frequently Asked Questions
What is the environmental risk level in Cochise, Arizona? ▼
Are there Superfund sites in Cochise? ▼
How many toxic release facilities are in Cochise? ▼
What is the air quality in Cochise? ▼
Is the drinking water safe in Cochise? ▼
What environmental agencies cover Cochise? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.