Amador County, California — public water systems
At a glance
67 active public water systems are filed under Amador County, California in EPA's SDWIS records, together reporting 43,217 people served. The largest is Awa Buckhorn Plant, which reports serving 8,791 people. 20 are community water systems serving people where they live; the other 47 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
67
Population served
43.2K
Community systems
20
Groundwater share
82.1%
How does Amador County compare with other California counties?
Amador County has the 38th-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 43,217 people served in total, the 47th-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 645 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 Amador County's drinking water come from?
By primary water source, Amador County's active systems draw on groundwater (53, 79%), purchased surface water (6, 9%), surface water (6, 9%) and groundwater under influence of surface water (2, 3%). Overall, 82% rely mainly on groundwater (including purchased groundwater) and 18% 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, Awa Buckhorn Plant, draws primarily on surface water.
What kinds of water systems operate in Amador County?
Amador County's active systems break down as 20 community systems (30%), 5 non-transient non-community systems (7.5%) and 42 transient non-community systems (63%). 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 (69%), local government (24%), federal government (6%) and state government (1.5%).
The 50 largest water systems in Amador County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Awa Buckhorn Plant | Amador | 8,791 | Community | Surface water |
| 2 | Awa, Ione | Amador | 7,227 | Community | Surface water |
| 3 | City of Jackson | Amador | 5,019 | Community | Purchased surface water |
| 4 | Awa, Tanner | Amador | 4,940 | Community | Surface water |
| 5 | Jackson Valley Irrigation District | Amador | 3,553 | Community | Surface water |
| 6 | Awa - Camanche Village | Amador | 2,402 | Community | Groundwater |
| 7 | Pine Grove Comm Serv Dist | Amador | 1,141 | Community | Purchased surface water |
| 8 | Plymouth, City of | Amador | 1,060 | Community | Purchased surface water |
| 9 | Camanche North Shore Inc.. | Amador | 922 | Community | Groundwater |
| 10 | First Mace Meadow # 1 | Amador | 838 | Community | Purchased surface water |
| 11 | Plasse'S Resort | Amador | 730 | Transient non-community | Groundwater |
| 12 | River Pines PUD | Amador | 574 | Community | Groundwater |
| 13 | Bear River Lake Resort | Amador | 571 | Transient non-community | Groundwater |
| 14 | Helwig Winery | Amador | 500 | Transient non-community | Groundwater |
| 15 | Silver Lake Campground | Amador | 500 | Transient non-community | Groundwater |
| 16 | Camp Winton | Amador | 300 | Transient non-community | Groundwater |
| 17 | Hope Foundation/Moriah Heights | Amador | 299 | Community | Groundwater |
| 18 | Pardee Recreation Area | Amador | 251 | Non-transient non-community | Surface water |
| 19 | Camp Ritchie | Amador | 250 | Transient non-community | Groundwater |
| 20 | First Mace Meadows Unit No. 2 | Amador | 230 | Community | Purchased surface water |
| 21 | Drytown County Water District | Amador | 221 | Community | Purchased surface water |
| 22 | Bear River Camp--South Shore | Amador | 200 | Transient non-community | Groundwater |
| 23 | Awa La Mel Heights #3 | Amador | 188 | Community | Groundwater |
| 24 | Mp Associates, Inc.. | Amador | 150 | Non-transient non-community | Groundwater |
| 25 | Bear River Summer Home Tract | Amador | 126 | Transient non-community | Groundwater |
| 26 | Grace Fellowship Church | Amador | 125 | Transient non-community | Groundwater |
| 27 | Bear River Group Campground | Amador | 125 | Transient non-community | Groundwater |
| 28 | Black Chasm Cavern | Amador | 115 | Transient non-community | Groundwater |
| 29 | Volcano Community Service Dist | Amador | 103 | Community | Groundwater under influence of surface water |
| 30 | Stockton Silver Lake Family Camp | Amador | 100 | Transient non-community | Groundwater |
| 31 | Kit Carson Lodge | Amador | 100 | Transient non-community | Groundwater |
| 32 | Villa Toscano Winery | Amador | 100 | Transient non-community | Groundwater |
| 33 | Fiddletown Community Service | Amador | 100 | Community | Groundwater |
| 34 | Jeff Runquist Winery | Amador | 95 | Transient non-community | Groundwater |
| 35 | Amador Harvest Inn | Amador | 87 | Transient non-community | Groundwater |
| 36 | Bella Piazza Winery | Amador | 71 | Transient non-community | Groundwater |
| 37 | So. Silver Lake Homeowners | Amador | 67 | Transient non-community | Groundwater |
| 38 | Kirkwood Campground | Amador | 65 | Transient non-community | Groundwater |
| 39 | Indian Grinding Rock-Calaveras District | Amador | 63 | Transient non-community | Groundwater |
| 40 | Forest Point Mhc | Amador | 62 | Community | Groundwater |
| 41 | Turley Wine Cellars | Amador | 50 | Transient non-community | Groundwater |
| 42 | Blood Gulch | Amador | 50 | Transient non-community | Groundwater |
| 43 | Golden Valley Camp | Amador | 45 | Transient non-community | Groundwater |
| 44 | Rombauer Sierra Foothills | Amador | 44 | Transient non-community | Groundwater |
| 45 | L'Azienda D'Agostini | Amador | 42 | Transient non-community | Groundwater |
| 46 | Sutter Pines MHP | Amador | 40 | Community | Groundwater under influence of surface water |
| 47 | Ione Band of Miwok Indians | Amador | 40 | Community | Groundwater |
| 48 | Cook'S Station | Amador | 38 | Transient non-community | Groundwater |
| 49 | Awa - Tiger Creek Powerhouse | Amador | 32 | Non-transient non-community | Surface water |
| 50 | Andis Wines | Amador | 32 | Transient non-community | Groundwater |
All other water systems in Amador County (17)
The remaining active systems filed under Amador County, largest first, with the population each reports serving.
- Amador Flower Farm31
- Ham'S Station28
- Plasse Homestead Water Association28
- Gibson'S Roadhouse Cafe27
- Bella Grace Vineyards27
- Borjon Winery26
- Iron Hub Winery26
- Sunset West Mutual Water Company25
- Mallo Gold Mine Plaza25
- Schmitz Wines25
- Rancho Victoria Tasting Room25
- La Mesa Vineyards25
- Roaring Camp25
- Ok Corral25
- C. G. Di Arie Vineyard and Winery25
- Paul J. Wines25
- Sera Fina Cellars25
Amador County water systems: frequently asked questions
How many public water systems are in Amador County, California?
EPA's SDWIS records file 67 active public water systems under Amador County, California: 20 community systems (30%), 5 non-transient non-community systems (7.5%) and 42 transient non-community systems (63%).
Who supplies drinking water in Amador County, CA?
The largest community water systems filed under Amador County are Awa Buckhorn Plant (8,791 people served), Awa, Ione (7,227 people served) and City of Jackson (5,019 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 Amador County's drinking water come from groundwater or surface water?
Of the 67 active public water systems in Amador County, 82% draw mainly on groundwater and 18% on surface water, counting purchased supplies. The largest system, Awa Buckhorn Plant, uses surface water.
Where can I find a water quality report for Amador 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. 20 community systems are filed under Amador 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 Amador 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
- All California public water systems· 7,479 active
- Nevada County· 82 systems
- Lake County· 81 systems
- Imperial County· 76 systems
- Siskiyou County· 69 systems
- Mariposa County· 67 systems
- San Benito County· 63 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 Amador County, California”, https://aquacensus.com/water-systems/california/amador (data as of October 1, 2026).