Adams County, California — public water systems
At a glance
4 active public water systems are filed under Adams County, California in EPA's SDWIS records, together reporting 314 people served. The largest is Mile High Mobile Home Park, which reports serving 209 people. 1 is a community water system serving people where they live; the other 3 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
4
Population served
314
Community systems
1
Groundwater share
75%
How does Adams County compare with other California counties?
Adams County has the 66th-most active public water systems among the 201 counties listed for active California systems in EPA records; among the 72 with 3 or more systems, the median has 73. Its systems report 314 people served in total, the 88th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 79 people, well below the California average of 5,706. 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 Adams County's drinking water come from?
By primary water source, Adams County's active systems draw on groundwater (3, 75%) and purchased surface water (1, 25%). Overall, 75% rely mainly on groundwater (including purchased groundwater) and 25% on surface water, compared with 85% and 15% across California. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Mile High Mobile Home Park, draws primarily on purchased surface water.
What kinds of water systems operate in Adams County?
Adams County's active systems break down as 1 community systems (25%) and 3 transient non-community systems (75%). 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 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 (75%) and public/private partnership (25%).
Water systems in Adams County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Mile High Mobile Home Park | Adams | 209 | Community | Purchased surface water |
| 2 | Middle Creek Bible Conf | Adams | 50 | Transient non-community | Groundwater |
| 3 | Middle Creek Manor | Adams | 30 | Transient non-community | Groundwater |
| 4 | Alpine Store | Adams | 25 | Transient non-community | Groundwater |
Adams County water systems: frequently asked questions
How many public water systems are in Adams County, California?
EPA's SDWIS records file 4 active public water systems under Adams County, California: 1 community systems (25%) and 3 transient non-community systems (75%).
Who supplies drinking water in Adams County, CA?
The largest community water system filed under Adams County is Mile High Mobile Home Park (209 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 Adams County's drinking water come from groundwater or surface water?
Of the 4 active public water systems in Adams County, 75% draw mainly on groundwater and 25% on surface water, counting purchased supplies. The largest system, Mile High Mobile Home Park, uses purchased surface water.
Where can I find a water quality report for Adams 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. 1 community system is filed under Adams 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 Adams 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 California water systems
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 Adams County, California”, https://aquacensus.com/water-systems/california/adams (data as of October 1, 2026).