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Counties → California

El Dorado County, California

SDWIS compliance plate

Sheet CA017 · El Dorado County 129 sys · 3,192 viol · #240/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 93.0% flagged
  • HEALTH-LOW 16.3% health
  • RANK-TOP #240/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 86%
  • SYS-LARGE 129 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Los Angeles County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, El Dorado County ranks #240 of 3,254 counties by people served, and #24 of 58 counties in California. See methodology · corpus placement.

El Dorado County standing, mid-flagged corpus third

Flagged-system rate 93.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 16.3% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #240 of 3,254 · #24 of 58 in California.

Flagged-rate neighbourhood around El Dorado County

Lowest/highest poles plus in-state counties nearest El Dorado County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Alpine · lowest El Dorado · this county San Joaquin · near Sutter · highest 70% 92.6% 93% 93.1% 93.2% 93.4% 97.1%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
El Dorado ID - Main 132,171 26 Detected
South Tahoe PUD - Main 100,000 13 Detected
Georgetown Divide PUD 9,434 4 Clean
Placerville, City of - Main 9,224 5 Clean
South Shore Recreation Area 3,300 50 Clean
Lukins Brothers Water Company 3,277 8 -
Lakeside Park Association 2,648 32 -
Pyramid Creek Trailhead 2,000 19 -
Sierra Tahoe Main Lodge 1,940 137 Detected
Sierra Tahoe West Bowl 1,900 8 -
Tahoe Keys Water Company 1,420 17 -
Grizzly Flats Community Servic 1,374 9 -
Adventure Mtn Lodge 1,200 0 -
Ca State Parks - D.l. Bliss 1,005 4 -
Ca State Parks - Emerald Bay, Vikingshol 1,002 4 -
Ca State Parks - Emerald Bay, Boat Campg 1,001 2 -
Nugget Campground 1,000 75 -
Camp Lotus Water System 1,000 25 -
Henningsen Lotus Park Water System 1,000 16 -
The Pub Water System 1,000 28 -
Ca State Parks - Emerald Bay, Eagle Poin 1,000 5 -
Heavenly Ski Creek Station 1,000 26 -
Folsom Lake Sra - Peninsula Campground 751 11 -
Tahoe City PUD - Rubicon 703 6 -
El Dorado ID - Outingdale 535 7 -
Heavenly Ski Sky Deck 520 2 -
Heavenly Ski Gondola 520 10 -
Jalapenos Water System 500 1 -
Sierra Tahoe Grandview 500 11 -
Fallen Leaf Mutual Water Co 461 26 -
Angora Lakes Resort 400 0 -
El Dorado ID - Strawberry 400 8 -
Spring Creek Tract Association 389 33 -
Peninsula Recreation Area 353 47 -
Smud Powerpines Camp 311 8 -
Station House Inn 310 15 -
Pioneer Bible Church 300 35 -
Mountain Camp II 300 14 -
Stanford Sierra Camp 295 3 -
Wench Creek Campground 250 18 -
Camp Sacramento 250 28 -
Pioneer Elementary School 227 51 -
Sierra Pines Camp 226 69 -
Sciots Tract Water System 223 28 -
Camp Shelly 200 3 -
Ice House Campground 200 15 -
Baldwin Beach 200 18 -
Leoni Meadows Camp 169 19 -
Pipi Campground Water System 150 41 -
Wolf Creek Campground 150 19 -

Compare beyond California

Mid-flagged peers for El Dorado County

Cross-state counties nearest El Dorado County on flagged-system share (93.0%) and cumulative violation count (3,192). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.