Greenlee County, Arizona — public water systems
At a glance
11 active public water systems are filed under Greenlee County, Arizona in EPA's SDWIS records, together reporting 8,173 people served. The largest is Morenci Water Elec Co Main, which reports serving 4,108 people. 7 are community water systems serving people where they live; the other 4 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
11
Population served
8.2K
Community systems
7
Groundwater share
90.9%
How does Greenlee County compare with other Arizona counties?
Greenlee County has the 15th-most active public water systems among the 56 counties listed for active Arizona systems in EPA records; among the 19 with 3 or more systems, the median has 63. Its systems report 8,173 people served in total, the 15th-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 743 people, well below the Arizona average of 4,369. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Greenlee County's drinking water come from?
By primary water source, Greenlee County's active systems draw on groundwater (9, 82%), surface water (1, 9.1%) and purchased groundwater (1, 9.1%). Overall, 91% rely mainly on groundwater (including purchased groundwater) and 9.1% on surface water, compared with 95% and 4.7% across Arizona. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Morenci Water Elec Co Main, draws primarily on surface water.
What kinds of water systems operate in Greenlee County?
Greenlee County's active systems break down as 7 community systems (64%), 1 non-transient non-community systems (9.1%) and 3 transient non-community systems (27%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (36%), local government (27%), public/private partnership (27%) and federal government (9.1%).
Water systems in Greenlee County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Morenci Water Elec Co Main | Greenlee | 4,108 | Community | Surface water |
| 2 | Morenci Water Elec Co Clifton | Greenlee | 1,678 | Community | Groundwater |
| 3 | Duncan Town of | Greenlee | 605 | Community | Groundwater |
| 4 | Cs Verde Lee Water Company | Greenlee | 604 | Community | Groundwater |
| 5 | Duncan Elementary School | Greenlee | 450 | Non-transient non-community | Purchased groundwater |
| 6 | Cs Loma Linda Water Company | Greenlee | 351 | Community | Groundwater |
| 7 | Valley View Mhc & Rv Park | Greenlee | 142 | Community | Groundwater |
| 8 | Hunter Water - Town of Duncan | Greenlee | 125 | Community | Groundwater |
| 9 | Greenlee Country Club | Greenlee | 45 | Transient non-community | Groundwater |
| 10 | Hannagan Meadows Lodge | Greenlee | 40 | Transient non-community | Groundwater |
| 11 | Usfs Asnf Hannagan Meadow | Greenlee | 25 | Transient non-community | Groundwater |
Greenlee County water systems: frequently asked questions
How many public water systems are in Greenlee County, Arizona?
EPA's SDWIS records file 11 active public water systems under Greenlee County, Arizona: 7 community systems (64%), 1 non-transient non-community systems (9.1%) and 3 transient non-community systems (27%).
Who supplies drinking water in Greenlee County, AZ?
The largest community water systems filed under Greenlee County are Morenci Water Elec Co Main (4,108 people served), Morenci Water Elec Co Clifton (1,678 people served) and Town of Duncan (605 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Greenlee County's drinking water come from groundwater or surface water?
Of the 11 active public water systems in Greenlee County, 91% draw mainly on groundwater and 9.1% on surface water, counting purchased supplies. The largest system, Morenci Water Elec Co Main, uses surface water.
Where can I find a water quality report for Greenlee County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 7 community systems are filed under Greenlee County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Greenlee County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Arizona water systems
- All Arizona public water systems· 1,769 active
- Yuma County· 50 systems
- Apache County· 47 systems
- Santa Cruz County· 37 systems
- Graham County· 16 systems
- San Bernardino County· 6 systems
- Montgomery County· 4 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Greenlee County, Arizona”, https://aquacensus.com/water-systems/arizona/greenlee (data as of October 1, 2026).