Plumas County, California — public water systems
At a glance
108 active public water systems are filed under Plumas County, California in EPA's SDWIS records, together reporting 32,740 people served. The largest is Lake Almanor Country Club Mwc, which reports serving 6,000 people. 27 are community water systems serving people where they live; the other 81 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
108
Population served
32.7K
Community systems
27
Groundwater share
95.4%
How does Plumas County compare with other California counties?
Plumas County has the 26th-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 32,740 people served in total, the 52nd-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 303 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 Plumas County's drinking water come from?
By primary water source, Plumas County's active systems draw on groundwater (103, 95%), surface water (4, 3.7%) and purchased surface water (1, 0.9%). Overall, 95% rely mainly on groundwater (including purchased groundwater) and 4.6% 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, Lake Almanor Country Club Mwc, draws primarily on groundwater.
What kinds of water systems operate in Plumas County?
Plumas County's active systems break down as 27 community systems (25%), 6 non-transient non-community systems (5.6%) and 75 transient non-community systems (69%). 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 (59%), federal government (19%), local government (18%) and state government (4.6%).
The 50 largest water systems in Plumas County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Lake Almanor Country Club Mwc | Plumas | 6,000 | Community | Groundwater |
| 2 | American Valley Csd | Plumas | 3,778 | Community | Groundwater |
| 3 | Chester Public U.D. | Plumas | 2,187 | Community | Groundwater |
| 4 | City of Portola | Plumas | 2,100 | Community | Purchased surface water |
| 5 | Hamilton Branch Csd | Plumas | 1,874 | Community | Groundwater |
| 6 | Plumas Eureka Csd | Plumas | 1,534 | Community | Groundwater |
| 7 | West Almanor M.W.C. | Plumas | 1,394 | Community | Groundwater |
| 8 | Grizzly Lake Csd-Delleker | Plumas | 1,314 | Community | Groundwater |
| 9 | Plumas-Eureka S.P. | Plumas | 800 | Transient non-community | Groundwater |
| 10 | Whitehawk Ranch Mwc | Plumas | 765 | Community | Surface water |
| 11 | Feather River Rv & MHP | Plumas | 741 | Community | Groundwater |
| 12 | Graeagle Water Company | Plumas | 737 | Community | Surface water |
| 13 | Ivcsd-Greenville | Plumas | 630 | Community | Groundwater |
| 14 | Feather River Community College | Plumas | 600 | Non-transient non-community | Groundwater |
| 15 | Caltrans-Massack Rest Stop | Plumas | 350 | Transient non-community | Groundwater |
| 16 | Pg&E Rocky Point Cg | Plumas | 312 | Transient non-community | Groundwater |
| 17 | Sierra Pacific Industries Quincy | Plumas | 300 | Non-transient non-community | Groundwater |
| 18 | Oakland Feather River Camp | Plumas | 300 | Transient non-community | Groundwater |
| 19 | Grizzly Creek Ranch Snj | Plumas | 300 | Non-transient non-community | Groundwater |
| 20 | Greenhorn Creek Csd | Plumas | 280 | Community | Groundwater |
| 21 | Ivcsd Crescent Mills | Plumas | 258 | Community | Groundwater |
| 22 | Lower Bucks Lake LDS Camp | Plumas | 220 | Transient non-community | Groundwater |
| 23 | Grizzly Lake Csd-Crocker/Welch | Plumas | 215 | Community | Groundwater |
| 24 | Bucks Lakeshore Resort | Plumas | 200 | Transient non-community | Groundwater |
| 25 | Blairsden Water Users Assn | Plumas | 200 | Community | Groundwater |
| 26 | Waltons Grizzly Lodge | Plumas | 200 | Transient non-community | Groundwater |
| 27 | Caltrans-L.T. Davis Reststop | Plumas | 200 | Transient non-community | Groundwater |
| 28 | Associations of Thompson Lake | Plumas | 182 | Transient non-community | Surface water |
| 29 | Pg&E Ponderosa Flat Cg | Plumas | 150 | Transient non-community | Groundwater |
| 30 | Two Rivers Sport Camp | Plumas | 150 | Transient non-community | Groundwater |
| 31 | Coppercreek Campground | Plumas | 150 | Transient non-community | Groundwater |
| 32 | Walker Ranch Csd | Plumas | 150 | Community | Groundwater |
| 33 | Clio Rivers Edge Rv Park | Plumas | 150 | Transient non-community | Groundwater |
| 34 | Pg&E Haskins Valley Cg | Plumas | 150 | Transient non-community | Groundwater |
| 35 | Gold Mountain Csd | Plumas | 135 | Community | Groundwater |
| 36 | Caltrans-Chester Safety Rest Stop | Plumas | 120 | Transient non-community | Groundwater |
| 37 | Pnf Kenzie Ravine 1 & 2 | Plumas | 120 | Transient non-community | Groundwater |
| 38 | Lake Cove Resort | Plumas | 120 | Transient non-community | Groundwater |
| 39 | Grizzly Ranch Csd | Plumas | 102 | Community | Groundwater |
| 40 | North Shore Cg | Plumas | 100 | Transient non-community | Groundwater |
| 41 | Plumas Pines Resort | Plumas | 100 | Transient non-community | Groundwater |
| 42 | Uc Berkeley Forestry Camp | Plumas | 100 | Transient non-community | Groundwater |
| 43 | Pnf Mt Hough Ranger Station | Plumas | 100 | Non-transient non-community | Groundwater |
| 44 | Brewing Lair | Plumas | 100 | Transient non-community | Groundwater |
| 45 | Pnf Grasshopper / Grizzly Cgs | Plumas | 100 | Transient non-community | Groundwater |
| 46 | Little Bear Rv Park | Plumas | 100 | Transient non-community | Groundwater |
| 47 | Camp Timberwolf | Plumas | 90 | Transient non-community | Groundwater |
| 48 | Pnf Lighting Tree Cg | Plumas | 90 | Transient non-community | Groundwater |
| 49 | Pnf Big Cove Cg | Plumas | 80 | Transient non-community | Groundwater |
| 50 | Clio Public Utility District | Plumas | 79 | Community | Groundwater |
All other water systems in Plumas County (58)
The remaining active systems filed under Plumas County, largest first, with the population each reports serving.
- Pnf Peninsula / Wyandotte Cgs75
- Canyon Ranch Rv Park60
- Psea Camp Almanor60
- Valivu Estates MHP54
- Meadow Edge MHP53
- Pg&E Cool Springs Cg52
- J&J Grizzly Resort50
- Belden Town & Resort50
- Chalet View Lodge50
- Pnf Sandy Point Day Use Area50
- Pnf Sundew / Hutchins Cgs50
- Gray Eagle Lodge50
- Pnf Boulder / Lone Creek Cgs50
- Sierra Valley Rv Park50
- Pnf Whitehorse Cg50
- Lake Haven Resort50
- Wilsons Camp Prattville50
- Lnf Almanor Cg50
- Bucks Lake Marina45
- Elwell Lodge45
- Pancake Bay Mutual Water Co40
- Pnf Lakes Basin Cg40
- Pnf North Fork / Queen Lily Cgs40
- Prattville Water Assn40
- Bucks Lake Lodge & Timberline Lodge40
- Pnf Long Point Cg40
- Pnf Cottonwood Cg / Frenchman Admin40
- Pnf Frenchman & Spring Creek Cgs40
- Pnf Chilcoot Cg40
- Pg&E Rodgers Flat Service Center39
- Pnf Beckwourth Nervino Fire Station39
- Greenhaven Hoa38
- Bucks Lake Camp and Rv Park35
- Arlington Heights MHP33
- Frccsd Old Mill Ranch32
- Johnsville Public Utility Dist30
- Pnf Spanish Creek Cg30
- Plumas County Gansner Park30
- River Ranch Rv Park30
- Dream Catcher Campground30
- Caribou Crossroads30
- Gold Lake Lodge30
- Evergreen Motel & MHP28
- Goodwin'S General Store25
- Sierra Valley Preserve25
- La Porte Pines Country Club25
- Vagabond Resort25
- Eagle Ridge Rv Park25
- Silvertip Springs Water System25
- Pnf Gansner Bar Cg / Work Center25
- La Porte Water District25
- Frccsd Hot Springs25
- Cromberg Spring Water Assn25
- Bourbon & Water Co25
- Gonzalez Water System25
- Sendero Ranch25
- Almanor Heights Mwc25
- Cedar Lodge Motel25
Plumas County water systems: frequently asked questions
How many public water systems are in Plumas County, California?
EPA's SDWIS records file 108 active public water systems under Plumas County, California: 27 community systems (25%), 6 non-transient non-community systems (5.6%) and 75 transient non-community systems (69%).
Who supplies drinking water in Plumas County, CA?
The largest community water systems filed under Plumas County are Lake Almanor Country Club Mwc (6,000 people served), American Valley Csd (3,778 people served) and Chester Public U.D. (2,187 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 Plumas County's drinking water come from groundwater or surface water?
Of the 108 active public water systems in Plumas County, 95% draw mainly on groundwater and 4.6% on surface water, counting purchased supplies. The largest system, Lake Almanor Country Club Mwc, uses groundwater.
Where can I find a water quality report for Plumas 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. 27 community systems are filed under Plumas 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 Plumas 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
- Tuolumne County· 117 systems
- Placer County· 116 systems
- Inyo County· 112 systems
- Tehama County· 109 systems
- Santa Cruz County· 96 systems
- Ventura County· 95 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 Plumas County, California”, https://aquacensus.com/water-systems/california/plumas (data as of October 1, 2026).