PlainWater
Counties → Washington

Chelan County, Washington

SDWIS compliance plate

Sheet WA007 · Chelan County 132 sys · 4,357 viol · #515/3254

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

  • VIOL-SEVERE 93.2% flagged
  • HEALTH-LOW 12.5% health
  • RANK-TOP #515/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 92%
  • SYS-LARGE 132 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Pend Oreille County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Chelan County ranks #515 of 3,254 counties by people served, and #14 of 39 counties in Washington. See methodology · corpus placement.

Chelan County standing, mid-flagged corpus third

Flagged-system rate 93.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #515 of 3,254 · #14 of 39 in Washington.

Flagged-rate neighbourhood around Chelan County

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

0% 20% 40% 60% 80% 100% Grant · lowest Clark · near Pend Oreille · near Wahkiakum · highest 69.8% 92.8% 93.1% 93.2% 93.2% 93.5% 100%

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

Water Systems

System Name Population Violations PFAS
Wenatchee City Of 43,690 91 Clean
Chelan Co PUD 1 15,840 20 Clean
Chelan Water Dept City Of 9,425 105 Clean
Leavenworth City Of 9,218 68 -
Lake Chelan Reclamation District 6,798 247 Clean
Cashmere Water Department 5,815 12 -
Lake Wenatchee State Park South Si 2,591 18 -
Malaga Water District 2,478 31 -
Alpine Water District 2,255 64 -
Nason Creek Rest Area 2,125 26 -
Entiat City Of 1,730 74 -
CHELAN CO PUD1 - Peshastin 1,397 74 -
Chelan County Fairground 1,335 11 -
Ponderosa Community Club Inc 1,170 38 -
Mission Ridge Ski Area Water System 1,009 15 -
Twenty Five Mile Creek State Park 970 3 -
Three Lakes Water District 650 18 -
Rainy Pass Rest Area - MethowRd 413 6 -
Alpenhorn Cafe 389 26 -
Chelan Falls Water District 380 36 -
Chiwawa Communities Assn 352 29 -
BJS Food and Fuel 2 321 3 -
97 Rock House WS 253 10 -
Ravenwing Ranch 250 0 -
Valleyhi Community Club 242 30 -
Holden Village 228 31 -
Nason Creek Cg/Lake Wenatchee RD 219 15 -
Laffertys Southshore Water System 218 29 -
Apple Acres Village 212 61 -
Spears Water System 200 24 -
Fields Point - Chelan RD 200 7 -
Thousand Trails - Leavenworth 185 19 -
Chelan Co PUD - Dryden 182 36 -
Squirrel Tree Resort 182 17 -
Big Y Cafe 180 20 -
Bear Mountain Water District 177 108 -
Peshastin Domestic Water Assn 177 37 -
Lytle Water System 156 38 -
Watsons Harverene Resort Inc 156 20 -
Stonewater Ranch 154 44 -
59Er Diner 134 22 -
Turtlerock Homeowners Association 133 21 -
Tall Timber Ranch Water System 122 52 -
Chelan Co PUD - Chelan Ridge 110 31 -
Camas Meadows Bible Camp 110 45 -
Camp Zanika Lache 105 15 -
Stevens Pass Nordic Center 103 5 -
Stehekin Pastry Company 102 72 -
Ski Hill Domestic Water Association 102 135 -
Little Butte Water System 101 9 -

Compare beyond Washington

Mid-flagged peers for Chelan County

Cross-state counties nearest Chelan County on flagged-system share (93.2%) and cumulative violation count (4,357). 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.