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Counties → Colorado

Grand County, Colorado

SDWIS compliance plate

Sheet CO049 · Grand County 79 sys · 6,442 viol · #890/3254

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

  • VIOL-SEVERE 96.2% flagged
  • HEALTH-LOW 4.8% health
  • RANK-UPPER #890/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-MID 33.3% detect
  • SRC-GW GW lead 81%
  • SYS-MID 79 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Grand County ranks #890 of 3,254 counties by people served, and #19 of 64 counties in Colorado. See methodology · corpus placement.

Grand County standing, mid-flagged corpus third

Flagged-system rate 96.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.8% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #890 of 3,254 · #19 of 64 in Colorado.

Flagged-rate neighbourhood around Grand County

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

0% 20% 40% 60% 80% 100% Broomfield · lowest Eagle · near Pueblo · near Kiowa · highest 66.7% 95.2% 95.7% 96.2% 96.6% 96.8% 100%

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

Water Systems

System Name Population Violations PFAS
Winter Park WSD 6,635 105 Clean
Grand County Water No 1 5,400 747 Detected
Winter Park Resort Sunspot 5,006 13 -
Winter Park Resort Lunch Rock 5,001 17 -
Winter Park Resort Snoasis 5,001 21 -
Winter Park Ranch WSD 3,250 17 -
Granby Town of South Service Area 2,300 18 -
Fraser Town Of 2,150 44 -
Grand Lake Town Of 2,035 4 -
Granby Town of North Service Area 2,025 17 -
Kremmling Town Of 1,859 66 -
Winter Park Resort Vasquez Ridge 999 5 -
Stillwater Cg 990 13 -
Winter Park Resort Discovery 812 10 -
Arapaho Bay Cg 720 8 -
Hot Sulphur Springs Town Of 687 103 -
Green Ridge Cg 624 20 -
Young Life Crooked Creek 595 262 -
YMCA Snow Mtn Ranch 578 154 Clean
Tabernash Meadows WSD 564 127 -
Smith Creek Crossing 518 0 -
Blm Pumphouse Recreation Site 500 64 -
Pole Creek Golf Club 490 35 -
Devils Thumb Ranch Resort 451 47 -
Columbine Lake WSD 428 48 -
Blue Valley MD 410 24 -
North Shore WSD 378 9 -
Rmnp Headquarters West 313 15 -
Timber Creek Cg 304 15 -
Soda Springs WA 280 101 -
C Lazy U Ranch 251 56 -
Lake Forest Mutual WC 250 60 -
Church of Eternal Hills 245 22 -
Roadhouse Bar and Grill 204 107 -
Granby Jones MHP 201 32 -
Sunset Point Cg 200 9 -
Arapaho Valley Ranch 185 2 -
Roadside Tp 168 38 -
Climax Molybdenum Co Henderson Mill 165 221 -
Fraser Valley Sports Complex 156 10 -
Winding River Resort Village 150 59 -
Cutthroat Bay Group Area 150 7 -
River Ranch Village MHP LLC 140 112 -
Winter Park Christian Church 135 16 -
The Shores of Shadow Mountain HOA 131 3 -
T Lazy W Mp 128 8 -
Shadow Mountain Village 115 1,061 -
Moraine Park WS 100 807 -
Wolford Mtn Recreation Area 100 4 -
Chuck Wagon Cafe 85 90 -

Compare beyond Colorado

Mid-flagged peers for Grand County

Cross-state counties nearest Grand County on flagged-system share (96.2%) and cumulative violation count (6,442). 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.