Montgomery County, Arizona — public water systems
At a glance
4 active public water systems are filed under Montgomery County, Arizona in EPA's SDWIS records, together reporting 2,244 people served. The largest is Valero Corner Store 1478, which reports serving 1,007 people.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
4
Population served
2.2K
Community systems
—
Groundwater share
100%
How does Montgomery County compare with other Arizona counties?
Montgomery County has the 17th-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 2,244 people served in total, the 18th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 561 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 Montgomery County's drinking water come from?
By primary water source, Montgomery County's active systems draw on groundwater (4, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none 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, Valero Corner Store 1478, draws primarily on groundwater.
What kinds of water systems operate in Montgomery County?
Montgomery County's active systems break down as 4 transient non-community systems (100%). 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 (100%).
Water systems in Montgomery County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Valero Corner Store 1478 | Montgomery | 1,007 | Transient non-community | Groundwater |
| 2 | Piney Shores | Montgomery | 822 | Transient non-community | Groundwater |
| 3 | Casey Ridge Grocery | Montgomery | 250 | Transient non-community | Groundwater |
| 4 | Rayford Crossing Rv Resort | Montgomery | 165 | Transient non-community | Groundwater |
Montgomery County water systems: frequently asked questions
How many public water systems are in Montgomery County, Arizona?
EPA's SDWIS records file 4 active public water systems under Montgomery County, Arizona: 4 transient non-community systems (100%).
Does Montgomery County's drinking water come from groundwater or surface water?
Of the 4 active public water systems in Montgomery County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Valero Corner Store 1478, uses groundwater.
Where can I find a water quality report for Montgomery 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.
How can I check violations for a water system in Montgomery 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
- Santa Cruz County· 37 systems
- Graham County· 16 systems
- Greenlee County· 11 systems
- San Bernardino County· 6 systems
- Brazoria County· 3 systems
- Denton County· 3 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 Montgomery County, Arizona”, https://aquacensus.com/water-systems/arizona/montgomery (data as of October 1, 2026).