Tapcensus

Colorado

Larimer County drinking water quality

138 active public water systems serve 515,920 people in Larimer County. 53 are compliant, 85 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 2 carry a health flag.

Active systems 138 47 community systems
People served 516K by public water systems
Systems with violations 85 62% of active systems, past 3 years
Serious violators 1 2 systems carry a health flag

Needs attention

Nueva Vida Mobile Home Park CO0135600 · Community water system · Serves 266 7 rules violated in the past three years. Unresolved: Lead and Copper Rule (LCR), Lead and Copper Rule Revisions (LCRR), and Public Notification Rule.
Pinewood Springs WD CO0135610 · Community water system · Serves 745 6 rules violated in the past three years. Unresolved: Groundwater Rule (GWR), Public Notification Rule, and TTHM (Total Trihalomethanes).

Community water systems

47 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
FT Collins City of
 179,901 4 0
Loveland City of
 91,077 0 0
FT Collins Loveland WD
 63,532 0 0
East Larimer County WD
 27,944 1 1
Csu Main and West Housing Campus
 27,375 5 0
Little Thompson WD
 25,654 0 0
Estes Park Town of
 16,722 1 0
Berthoud Town of
 14,211 0 0
Wellington Town of
 11,720 5 0
Northern Colorado WA
 4,675 0 0
West Fort Collins WD
 4,000 0 0
YMCA Rockies Wind River
 3,730 7 2
Spring Canyon Wsd
 2,320 0 0
Timber Ridge MHP
 1,736 1 0
Harmony Village MHP
 1,215 0 0
Cloverleaf Colorado LLC
 1,007 3 0
Poudre Valley MHC
 985 4 3
Collins Aire MHC
 946 4 2
Rmnp Headquarters East
 900 2 0
Lago Vista Mobile Home Park
Loveland 		842 4 3
Hickory Village
 816 1 0
Pinewood Springs WD
 745 6 1
Sunset Park MHC
 462 4 2
Riverview CG
 450 3 0
Sunset WD
 425 0 0
Big Elk Meadows WA
 405 4 0
Skyline
 402 0 0
Consolidated Glacier View Meadows Assoc
 395 3 0
Apple & Cherry Ridge Village
 350 2 0
Windcliff Poa
 339 2 0
North Carter Lake WD
 328 1 0
Alpine Vista Village
 313 0 0
Aspen Ridge MHC
 302 4 1
Pleasant Grove MHP
 285 0 0
Loveland MHP
 283 0 0
Nueva Vida Mobile Home Park
 266 7 3
Annunciation Heights
 260 2 0
Newell Warnock WA
 160 1 0
Northstar Mobile Home Park
 136 4 1
Meadowlark Mobile Home Park
 125 2 1
Eden Valley Institute
 91 11 1
Shambhala Mountain Center
 90 2 0
Sunshine Acres MHP
 78 0 0
Sunrise Ranch
 75 4 0
Pinewood Mobile Home Park
 65 3 0
Carter Lake Filter Plant
 11 1 0
Soldier Canyon Filter Plant
 0 0 0
Non-community systems (91: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Csu South Campus
Fort Collins 		5,164 2 0
Csu Foothills Campus
 4,483 2 0
Fall River Pass
 3,300 1 0
Estes Park CG at Marys Lake
 700 1 0
Rocky Mountain Gateway
 686 0 0
Mountain Park CG
 548 1 0
Cheley Colorado Camp Main
 500 2 0
Glacier Basin
 500 0 0
Longs Peak CG
 500 2 0
Hermit Park Open Space
 464 1 0
Spear INC Water Hauling
 450 0 0
Jellystone Park of Estes Park
 423 1 0
Kennedy Mountain Campus
 417 0 0
Chambers Lake CG
 408 0 0
Tunnel CG
 392 0 0
Ben Delatour Boy Scout Camp
 345 2 1
Fox Acres Comm Serv Corp
 306 2 0
West Lake CG
 296 1 0
Dowdy Lake East CG
 272 1 0
Camp Timberline
 259 0 0
Bellaire Lake CG
 256 1 0
Aspen Glen CG
 250 0 0
Bear Lake
 250 1 0
Cdot Virginia Dale Rest Area
 250 1 0
Crystal Lakes 6th Filing
 250 1 0
Hidden Valley
 250 0 0
Dowdy Lake West Shore CP Arap
 240 1 0
Kelly Flats CG
 240 0 0
Sky Ranch Lutheran Camp
 226 2 1
Fawn Valley Inn
 220 1 0
Long Draw CG
 208 0 0
Csu Mountain Campus
 206 2 1
Beaver Meadows Resort
 202 0 0
Buckhorn United Methodist Camp
 157 0 0
Ellis Ranch Event Center
Loveland 		157 0 0
Stove Prairie Ranch
 152 0 0
Ride a Kart Family Fun Center
 151 2 0
Dao House
 135 0 0
Mishawaka
 134 2 0
Olympus Lodge
 133 0 0
Della Terra
 132 0 0
Hondius Wua
 127 0 0
Dutch George CG
 125 1 0
Seven Keys Lodge
 115 1 1
Morning Star Comm Church
 112 2 1
Rocky Ridge Music Center
 100 4 0
Water Man the
 100 0 0
Wind River Ranch WS
 100 2 1
Livermore WS
 99 3 1
Sylvan Dale Ranch
 98 0 0
Bass Ranches
 90 0 0
Platte River Power Authority
 88 1 0
Narrows CG Upper
 81 0 0
John Timothy Stone Cliffs Assoc
 80 1 1
Trails End for Boys
 80 2 0
Trails End for Girls
 80 3 1
Pot Belly Restaurant
 78 0 0
Crystal Lakes 11th Filing
 76 1 0
Ansel Watrous CG Upper
 72 0 0
Stove Prairie CG
 72 0 0
Loveland Heights Cottages
 70 1 0
Aspen Glen CG
 64 1 0
Grandview CG
 64 0 0
Narrows CG Lower
 64 1 0
Sky Corral Ranch
 64 0 0
Abbey of ST Walburga
 62 1 1
Cherokee Park Ranch
 59 2 1
Ansel Watrous CG Lower
 56 0 0
High Peak Camp
 55 0 0
Ravencrest Chalet
 55 3 0
Larimer County Parks Carter Lake
 50 3 0
Poudre River Resort
 49 2 0
Rawah Ranch
 49 0 0
Summit Properties Colorado LLC
 48 1 0
Big Bend CG
 45 1 0
Wildwood Inn
 44 0 0
Hill Top General Store
 42 5 0
Red Feather Super Market
 41 2 0
Glen Echo Resort
 38 5 1
Red Feather Mountain Library District
 38 1 0
Inn of Glen Haven
 37 5 0
Workshire Lodge
 37 1 1
Glen Haven General Store
 32 0 0
Poudre River Paradise
 32 0 0
Red Feather Lakes Poa
 30 0 0
High Country Estates
 29 0 0
Marrs Mountain Cabins and Tavern
 28 0 0
Sundance Trail Guest Ranch
 27 5 0
Trading Post Ltd
 27 0 0
Fire Mountain Programs
 26 2 1
Mountain View Water
 24 2 0
Inactive systems (143, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.