PlainWater

Kittitas County, Washington

SDWIS compliance plate

Sheet WA037 · Kittitas County 104 sys · 3,250 viol · #935/3254

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

  • VIOL-SEVERE 89.4% flagged
  • HEALTH-LOW 7.8% health
  • RANK-UPPER #935/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 94%
  • SYS-MID 104 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Lewis County (+ 0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Kittitas County ranks #935 of 3,254 counties by people served, and #23 of 39 counties in Washington. See methodology · corpus placement.

Kittitas County standing, lower-flagged corpus third

Flagged-system rate 89.4% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 7.8% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #935 of 3,254 · #23 of 39 in Washington.

Flagged-rate neighbourhood around Kittitas County

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

0% 20% 40% 60% 80% 100% Grant · lowest Kittitas · this county Cowlitz · near Wahkiakum · highest 69.8% 88.9% 89.4% 89.8% 90.8% 91.2% 100%

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

Water Systems

System Name Population Violations PFAS
Ellensburg Water Dept 20,900 13 Clean
Indian John Rest Area (Eb/Wb) 5,718 10 -
Suncadia Resort 2,640 15 -
Wanapum State Park 2,263 6 -
Kittitas City Of 2,247 18 -
Cle Elum Water Department 2,213 160 -
Ryegrass Eb/Wb Rest Area 2,184 25 -
Roslyn City Of 2,099 19 -
Kittitas County Water District #5 699 21 -
Kachess Campground/Cle Elum RD 542 2 -
South Cle Elum Water Dept 541 62 -
Kittitas County Water District #4 510 13 -
Thorp Arco AM/PM 500 9 -
Kittitas County Water District #7 463 21 -
Vantage Water System 405 27 -
Easton Water District 362 69 -
Sun Country Estates 1-2-3 277 42 -
Grasslands Water System 260 30 -
Mill Pond Community LLC 245 92 -
Calvary Baptist Church 243 4 -
Kittitas Co WD #2 242 31 -
Lake Easton State Park East 234 9 -
Salmon la Sac Cg/Cle Elum RD 212 13 -
Springwood Ranch Party Barn 210 5 -
McIntosh Well #1 202 2 -
Pineloch Sun Beach Club 190 47 -
Lazy F Camp & Retreat Center 156 14 -
Palomino Fields 156 41 -
Cabin Creek Lodge 153 0 -
Evergreen Valley 152 6 -
Lake Easton State Park West 143 18 -
Flying Horseshoe Guest Ranch 140 14 -
Anderson Hay & Grain Co 130 13 -
Eagle Valley Campground 129 14 -
Ginkgo State Park-Natural Area 129 6 -
Afc Ranch 2 125 18 -
PSE Wild Horse Operations Bldg 117 0 -
Camp Koinonia 116 5 -
Driftwood Acres Maintenance Corp 114 81 -
Liberty Cafe 111 5 -
Central Mobile Home Park 110 32 -
Kaner Flat Cg/Naches RD 110 3 -
Ellensburg KOA 109 7 -
Wish Poosh Cg/Cle Elum RD 106 8 -
Ensign Ranch Girls Camp 101 4 -
Zirkle - Wildcat 2 Ranch 99 0 -
Sky Meadows Ranch Country Club Wtr 98 68 -
Sun Island Maintenance Assn 97 450 -
Zirkle - Ellensburg Ranch 97 2 -
Ensign Ranch 93 29 -

Compare beyond Washington

Lower-flagged peers for Kittitas County

Cross-state counties nearest Kittitas County on flagged-system share (89.4%) and cumulative violation count (3,250). 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
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.