Skip to content
AquaCensus

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
Active public water systems in Amador County, California
#Water systemCountyPopulation servedTypeSource
1Awa Buckhorn PlantAmador8,791CommunitySurface water
2Awa, IoneAmador7,227CommunitySurface water
3City of JacksonAmador5,019CommunityPurchased surface water
4Awa, TannerAmador4,940CommunitySurface water
5Jackson Valley Irrigation DistrictAmador3,553CommunitySurface water
6Awa - Camanche VillageAmador2,402CommunityGroundwater
7Pine Grove Comm Serv DistAmador1,141CommunityPurchased surface water
8Plymouth, City ofAmador1,060CommunityPurchased surface water
9Camanche North Shore Inc..Amador922CommunityGroundwater
10First Mace Meadow # 1Amador838CommunityPurchased surface water
11Plasse'S ResortAmador730Transient non-communityGroundwater
12River Pines PUDAmador574CommunityGroundwater
13Bear River Lake ResortAmador571Transient non-communityGroundwater
14Helwig WineryAmador500Transient non-communityGroundwater
15Silver Lake CampgroundAmador500Transient non-communityGroundwater
16Camp WintonAmador300Transient non-communityGroundwater
17Hope Foundation/Moriah HeightsAmador299CommunityGroundwater
18Pardee Recreation AreaAmador251Non-transient non-communitySurface water
19Camp RitchieAmador250Transient non-communityGroundwater
20First Mace Meadows Unit No. 2Amador230CommunityPurchased surface water
21Drytown County Water DistrictAmador221CommunityPurchased surface water
22Bear River Camp--South ShoreAmador200Transient non-communityGroundwater
23Awa La Mel Heights #3Amador188CommunityGroundwater
24Mp Associates, Inc..Amador150Non-transient non-communityGroundwater
25Bear River Summer Home TractAmador126Transient non-communityGroundwater
26Grace Fellowship ChurchAmador125Transient non-communityGroundwater
27Bear River Group CampgroundAmador125Transient non-communityGroundwater
28Black Chasm CavernAmador115Transient non-communityGroundwater
29Volcano Community Service DistAmador103CommunityGroundwater under influence of surface water
30Stockton Silver Lake Family CampAmador100Transient non-communityGroundwater
31Kit Carson LodgeAmador100Transient non-communityGroundwater
32Villa Toscano WineryAmador100Transient non-communityGroundwater
33Fiddletown Community ServiceAmador100CommunityGroundwater
34Jeff Runquist WineryAmador95Transient non-communityGroundwater
35Amador Harvest InnAmador87Transient non-communityGroundwater
36Bella Piazza WineryAmador71Transient non-communityGroundwater
37So. Silver Lake HomeownersAmador67Transient non-communityGroundwater
38Kirkwood CampgroundAmador65Transient non-communityGroundwater
39Indian Grinding Rock-Calaveras DistrictAmador63Transient non-communityGroundwater
40Forest Point MhcAmador62CommunityGroundwater
41Turley Wine CellarsAmador50Transient non-communityGroundwater
42Blood GulchAmador50Transient non-communityGroundwater
43Golden Valley CampAmador45Transient non-communityGroundwater
44Rombauer Sierra FoothillsAmador44Transient non-communityGroundwater
45L'Azienda D'AgostiniAmador42Transient non-communityGroundwater
46Sutter Pines MHPAmador40CommunityGroundwater under influence of surface water
47Ione Band of Miwok IndiansAmador40CommunityGroundwater
48Cook'S StationAmador38Transient non-communityGroundwater
49Awa - Tiger Creek PowerhouseAmador32Non-transient non-communitySurface water
50Andis WinesAmador32Transient non-communityGroundwater

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 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

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).