Cochise, AZ
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Cochise in Arizona · Population: 125,458
TRI sites such as Arizona Electric Power Cooperative Inc; Apache Nitrogen Products Inc; U.s.dod US Army Fort Huachuca - Ranges; SDWIS systems such as BELLA VISTA CITY WATER SYSTEM; LIBERTY WATER RIO RICO; DOUGLAS CITY OF; NPL sites such as Apache Powder Co. anchor Cochise, AZ's EPA extract. Derived burden score 42/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Cochise include DOUGLAS CITY OF; US ARMY FORT HUACHUCA; PUEBLO DEL SOL WATER COMPANY, while Arizona Electric Power Cooperative Inc leads reported TRI pounds among local Form R filers. AQS median AQI 48 / peak 307 in 2024.
Burden score 42/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Cochise -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Cochise, AZ: EPA TRI 2023 reporting year
Same facilities, both years
-55.8%
4 facilities that filed in 2022 and 2023
Whole inventory
-55.8%
184.3 thousand lb → 81.4 thousand lb, every facility that filed
- Cochise, AZ's total reported releases fell from 184.3 thousand lb in 2022 to 81.4 thousand lb in 2023, based on EPA TRI filings.
- Cochise, AZ's land releases fell from 165.8 thousand lb in 2022 to 71.8 thousand lb in 2023, based on EPA TRI filings.
- Cochise, AZ's air releases fell from 18.2 thousand lb in 2022 to 9.4 thousand lb in 2023, based on EPA TRI filings.
- Cochise, AZ's off-site transfers fell from 264 lb in 2022 to 219 lb in 2023, based on EPA TRI filings.
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 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 | System pop (SDWIS) | 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 | 2 |
| PUEBLO DEL SOL WATER COMPANY | 12,804 | 9 |
| BENSON, CITY OF WATER SYSTEM | 5,355 | 0 |
| BISBEE DOUGLAS INTL AIRPORT | 2,600 | 2 |
| BELLA VISTA WATER SOUTH | 2,178 | 0 |
| POMERENE DWID | 1,618 | 17 |
| SOUTHERN SUNRISE WC COCHISE HORSESHOE | 1,588 | 0 |
| TOMBSTONE CITY OF | 1,545 | 13 |
| ST DAVID DWID | 1,255 | 2 |
| WHETSTONE DWID | 940 | 0 |
| ELFRIDA WID | 800 | 11 |
| SOUTHERN SUNRISE WC MIRACLE VALLEY | 620 | 0 |
| NORTHERN SUNRISE WC CORONADO | 553 | 0 |
| SIERRA VISTA MH VILLAGE | 328 | 2 |
| NORTHERN SUNRISE WC MUSTANG CRYSTAL | 315 | 0 |
| SAN SIMON DWID | 312 | 56 |
| WILLOW LAKES PROPERTY OWNERS ASSOC | 190 | 12 |
| WHETSTONE RANCH WATER SYSTEM | 183 | 2 |
| STRATMAN WATER COMPANY | 105 | 2 |
| 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 |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Apache Powder Co. | NPL Site | 39.09 |
Cities in Cochise (15)
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? ▼
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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.