El Dorado County, California — public water systems
At a glance
124 active public water systems are filed under El Dorado County, California in EPA's SDWIS records, together reporting 291,553 people served. The largest is El Dorado Id - Main, which reports serving 132,171 people. 18 are community water systems serving people where they live; the other 106 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
124
Population served
291.6K
Community systems
18
Groundwater share
85.5%
How does El Dorado County compare with other California counties?
El Dorado County has the 19th-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 291,553 people served in total, the 24th-largest county figure in the state and 0.7% of the statewide total. The average system here reports serving 2,351 people, about 59% 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 El Dorado County's drinking water come from?
By primary water source, El Dorado County's active systems draw on groundwater (106, 85%), surface water (17, 14%) and purchased surface water (1, 0.8%). Overall, 85% rely mainly on groundwater (including purchased groundwater) and 15% 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, El Dorado Id - Main, draws primarily on surface water.
What kinds of water systems operate in El Dorado County?
El Dorado County's active systems break down as 18 community systems (15%), 8 non-transient non-community systems (6.5%) and 98 transient non-community systems (79%). 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 (65%), federal government (16%), local government (15%) and state government (4%).
The 50 largest water systems in El Dorado County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | El Dorado Id - Main | El Dorado | 132,171 | Community | Surface water |
| 2 | South Tahoe PUD - Main | El Dorado | 100,000 | Community | Groundwater |
| 3 | Georgetown Divide PUD | El Dorado | 9,434 | Community | Surface water |
| 4 | Placerville, City of - Main | El Dorado | 9,224 | Community | Purchased surface water |
| 5 | South Shore Recreation Area | El Dorado | 3,300 | Non-transient non-community | Groundwater |
| 6 | Lukins Brothers Water Company | El Dorado | 3,277 | Community | Groundwater |
| 7 | Lakeside Park Association | El Dorado | 2,648 | Community | Surface water |
| 8 | Pyramid Creek Trailhead | El Dorado | 2,000 | Transient non-community | Groundwater |
| 9 | Sierra Tahoe Main Lodge | El Dorado | 1,940 | Non-transient non-community | Groundwater |
| 10 | Sierra Tahoe West Bowl | El Dorado | 1,900 | Transient non-community | Groundwater |
| 11 | Tahoe Keys Water Company | El Dorado | 1,420 | Community | Groundwater |
| 12 | Grizzly Flats Community Servic | El Dorado | 1,374 | Community | Surface water |
| 13 | Ca State Parks - D.L. Bliss | El Dorado | 1,005 | Transient non-community | Surface water |
| 14 | Ca State Parks - Emerald Bay, Vikingshol | El Dorado | 1,002 | Transient non-community | Surface water |
| 15 | Ca State Parks - Emerald Bay, Boat Campg | El Dorado | 1,001 | Transient non-community | Surface water |
| 16 | Ca State Parks - Emerald Bay, Eagle Poin | El Dorado | 1,000 | Transient non-community | Surface water |
| 17 | The Pub Water System | El Dorado | 1,000 | Transient non-community | Groundwater |
| 18 | Henningsen Lotus Park Water System | El Dorado | 1,000 | Transient non-community | Groundwater |
| 19 | Nugget Campground | El Dorado | 1,000 | Transient non-community | Groundwater |
| 20 | Camp Lotus Water System | El Dorado | 1,000 | Transient non-community | Groundwater |
| 21 | Folsom Lake Sra - Peninsula Campground | El Dorado | 751 | Transient non-community | Groundwater |
| 22 | Tahoe City PUD - Rubicon | El Dorado | 703 | Community | Groundwater |
| 23 | El Dorado Id - Outingdale | El Dorado | 535 | Community | Surface water |
| 24 | Sierra Tahoe Grandview | El Dorado | 500 | Transient non-community | Groundwater |
| 25 | Jalapenos Water System | El Dorado | 500 | Transient non-community | Groundwater |
| 26 | Fallen Leaf Mutual Water Co | El Dorado | 461 | Transient non-community | Surface water |
| 27 | El Dorado Id - Strawberry | El Dorado | 400 | Community | Surface water |
| 28 | Angora Lakes Resort | El Dorado | 400 | Transient non-community | Groundwater |
| 29 | Spring Creek Tract Association | El Dorado | 389 | Transient non-community | Groundwater |
| 30 | Peninsula Recreation Area | El Dorado | 353 | Transient non-community | Groundwater |
| 31 | Smud Powerpines Camp | El Dorado | 311 | Transient non-community | Groundwater |
| 32 | Station House Inn | El Dorado | 310 | Non-transient non-community | Groundwater |
| 33 | Mountain Camp Ii | El Dorado | 300 | Transient non-community | Groundwater |
| 34 | Pioneer Bible Church | El Dorado | 300 | Transient non-community | Groundwater |
| 35 | Stanford Sierra Camp | El Dorado | 295 | Transient non-community | Surface water |
| 36 | Camp Sacramento | El Dorado | 250 | Transient non-community | Surface water |
| 37 | Wench Creek Campground | El Dorado | 250 | Transient non-community | Groundwater |
| 38 | Pioneer Elementary School | El Dorado | 227 | Non-transient non-community | Groundwater |
| 39 | Sierra Pines Camp | El Dorado | 226 | Transient non-community | Groundwater |
| 40 | Sciots Tract Water System | El Dorado | 223 | Transient non-community | Surface water |
| 41 | Ice House Campground | El Dorado | 200 | Transient non-community | Groundwater |
| 42 | Baldwin Beach | El Dorado | 200 | Transient non-community | Groundwater |
| 43 | Camp Shelly | El Dorado | 200 | Transient non-community | Groundwater |
| 44 | Leoni Meadows Camp | El Dorado | 169 | Transient non-community | Groundwater |
| 45 | Kyburz Mutual Water Company | El Dorado | 150 | Community | Surface water |
| 46 | Pipi Campground Water System | El Dorado | 150 | Transient non-community | Groundwater |
| 47 | Wolf Creek Campground | El Dorado | 150 | Transient non-community | Groundwater |
| 48 | Cody Water Association | El Dorado | 148 | Transient non-community | Surface water |
| 49 | Gold Beach Park | El Dorado | 134 | Community | Groundwater |
| 50 | Robbs Resort | El Dorado | 132 | Transient non-community | Groundwater |
All other water systems in El Dorado County (74)
The remaining active systems filed under El Dorado County, largest first, with the population each reports serving.
- Camp Nauvoo Water System125
- Mountain Creek School125
- Gerle Creek Campground125
- Loon Lake Campground125
- Tahoe City PUD - Glenridge124
- Echo Lake Camp120
- Millers Hill School120
- Gerle Creek Summer Homes115
- Silverfork Mutual Water114
- Crystal Caves MHP112
- Forward Bible Conference107
- Tahoe Travel Inn104
- Ice House Resort103
- Camp Fleming Lodge103
- O.A.R.S., Inc. #70100
- Somerset House Water System100
- Stumpy Meadows Campground100
- Mt Aukum Square100
- Yellow Jacket Campground100
- Kiota Diggings Water System100
- All Outdoors Adventure Trips100
- Fox Sparrow Rv Park100
- Bear State Water Works100
- Pioneer Park Water System100
- Gray'S Mart and Gas100
- Fll Mutual100
- Alpine Inn & Spa100
- Econo Lodge Inn and Suites100
- Mt Ralston Properties Assc Inc.84
- Quintette Service Corp Water80
- West Point Campground75
- China Flat Campground75
- Oaklane Mobile Village, LLC.75
- Cleveland Corral Rest Area75
- Candlelight Village Mutual Water Co.75
- Wrights Lake Campground75
- Echo Peak Water Association73
- Tahoe Sands Inn71
- Cathedral Water Association70
- Silverfork Campground70
- Camp Fleming Campground70
- Camp Concord69
- Villa Tahoe Condominiums66
- American Legion Tract Resort Assoc65
- Latrobe Elementary School65
- Lotus Pub65
- Docmanov Vineyards65
- Lake Chiquita Mutual Water Company63
- Mother Lode Water System63
- Cascade Mutual Water Company62
- Alder Inn Tahoe60
- King'S Iv Condominiums60
- The Trailhead60
- Black Bear Lodge58
- Lotus Store Water System56
- Tamarack Park Homeowners Assoc54
- Sand Flat Campground50
- Element 79 Vineyards50
- Silverfork Store Water System50
- The Jeffrey Hotel47
- Tahoe Valley Lodge46
- Echo Chalet Inc.43
- Echo Road Group Water Assoc40
- Heather Lake Road Tract39
- Tahoe Mountain Inn34
- Dru Barner Campground30
- Bryant Creek/Fir Tracts Mwa28
- Beverly Lodge25
- Silverfork School25
- Red Fir Group Campground25
- Silverfork Water Association25
- Olson Tract Water Association25
- Rainbow Tract Water Assoc23
- Rivers Bend Resort14
El Dorado County water systems: frequently asked questions
How many public water systems are in El Dorado County, California?
EPA's SDWIS records file 124 active public water systems under El Dorado County, California: 18 community systems (15%), 8 non-transient non-community systems (6.5%) and 98 transient non-community systems (79%).
Who supplies drinking water in El Dorado County, CA?
The largest community water systems filed under El Dorado County are El Dorado Id - Main (132,171 people served), South Tahoe PUD - Main (100,000 people served) and Georgetown Divide PUD (9,434 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 El Dorado County's drinking water come from groundwater or surface water?
Of the 124 active public water systems in El Dorado County, 85% draw mainly on groundwater and 15% on surface water, counting purchased supplies. The largest system, El Dorado Id - Main, uses surface water.
Where can I find a water quality report for El Dorado 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. 18 community systems are filed under El Dorado 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 El Dorado 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
- San Luis Obispo County· 171 systems
- Sacramento County· 164 systems
- Santa Barbara County· 150 systems
- Mendocino County· 144 systems
- Santa Clara County· 121 systems
- Merced County· 120 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 El Dorado County, California”, https://aquacensus.com/water-systems/california/el-dorado (data as of October 1, 2026).