Water Quality in Fort Collins, CO (80517)

EPA violation data for public water systems serving ZIP code 80517.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

9,657

Population

91

Water Systems

115

Violations (5yr)

15

Health-Based

Location

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Water Systems Serving This Area (91)

Ft Collins City Of

All resolved
Surface water 179,901 people served
4 violations (5yr) · All resolved
Lead tested: 2.8 ppb (limit: 15 ppb)

Loveland City Of

All resolved
Surface water 95,471 people served
1 violation (5yr) · All resolved
Lead tested: 3.3 ppb (limit: 15 ppb)

Ft Collins Loveland Wd

Purchased surface water 63,532 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb)

East Larimer County Wd

All resolved
Purchased surface water 27,944 people served
8 violations (5yr) · All resolved
Lead tested: 3.9 ppb (limit: 15 ppb)

Csu Main And West Housing Campus

Purchased surface water 27,375 people served
9 violations (5yr)
Lead tested: 8 ppb (limit: 15 ppb)

Little Thompson Wd

Purchased surface water 25,654 people served
0 violations

Estes Park Town Of

1 health-based
Surface water 16,722 people served
4 violations (5yr) · 1 health-based · All resolved
Lead tested: 1.4 ppb (limit: 15 ppb)

Ymca Rockies Wind River

4 health-based
Purchased surface water 3,730 people served
40 violations (5yr) · 4 health-based
Lead tested: 0 ppb (limit: 15 ppb)

Fall River Pass

1 health-based
Groundwater 3,300 people served
1 violation (5yr) · 1 health-based

Rmnp Headquarters East

All resolved
Groundwater 900 people served
3 violations (5yr) · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Estes Park Cg At Marys Lake

All resolved
Groundwater 700 people served
1 violation (5yr) · All resolved

Longs Peak Cg

All resolved
Surface water 500 people served
2 violations (5yr) · All resolved

Glacier Basin

Groundwater 500 people served
0 violations

Hermit Park Open Space

1 health-based
Groundwater 464 people served
5 violations (5yr) · 1 health-based

Windcliff Poa

All resolved
Purchased surface water 337 people served
3 violations (5yr) · All resolved
Lead tested: 3.5 ppb (limit: 15 ppb)

Annunciation Heights

4 health-based
Groundwater 260 people served
4 violations (5yr) · 4 health-based · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Hidden Valley

Groundwater 250 people served
0 violations

Wild Basin Es

Groundwater 250 people served
0 violations

Aspen Glen Cg

Groundwater 250 people served
0 violations

Bear Lake

All resolved
Groundwater 250 people served
2 violations (5yr) · All resolved

Fawn Valley Inn

Groundwater 220 people served
9 violations (5yr)

Ride A Kart Family Fun Center

1 health-based
Groundwater 151 people served
2 violations (5yr) · 1 health-based

Estes Park Cg At East Portal

Surface water 140 people served
0 violations

Dao House

All resolved
Groundwater 135 people served
1 violation (5yr) · All resolved

Olympus Lodge

All resolved
Groundwater 133 people served
1 violation (5yr) · All resolved

Della Terra

Groundwater 132 people served
0 violations

Seven Keys Lodge

Groundwater 115 people served
0 violations

Estes Park - Town Of 4

Surface water 101 people served
0 violations

Estes Park - Town Of 2

Surface water 101 people served
0 violations

Estes Park - Town Of 3

Surface water 101 people served
0 violations

Water Man The

All resolved
Purchased surface water 100 people served
4 violations (5yr) · All resolved

Wind River Ranch Ws

Groundwater 100 people served
4 violations (5yr)

Wind River Ranch

Groundwater 80 people served
0 violations

Lanes Guest Ranch

Surface water 75 people served
0 violations

Cascade Cottages

Purchased surface water 75 people served
0 violations

Mcgregor Mtn Lodge

All resolved
Groundwater 71 people served
1 violation (5yr) · All resolved

Longs Peak Inn

Surface water 70 people served
0 violations

Loveland Heights Cottages

Groundwater 70 people served
0 violations

Alpine Trail Ridge Inn

Groundwater 62 people served
0 violations

High Peak Camp

Groundwater 55 people served
0 violations

Fawn Valley Inn & Chalets

Groundwater 50 people served
0 violations

Summit Properties Colorado Llc

2 health-based
Groundwater under influence of surface water 48 people served
5 violations (5yr) · 2 health-based · All resolved

Indian Head Guest Ranch

Surface water 45 people served
0 violations

Wildwood Inn

Groundwater 44 people served
0 violations

North End Water Co

Groundwater 42 people served
0 violations

Lane Guest Ranch

Surface water 40 people served
0 violations

Park Entrance Mutual Pipeline And Wc

Purchased surface water 38 people served
0 violations

Workshire Lodge

Groundwater 37 people served
0 violations

Bighorn Rs

Groundwater 37 people served
0 violations

Landmark Motel/Meadowbrook Ps

Groundwater 35 people served
0 violations

Indian Head Ranch

Groundwater 27 people served
0 violations

Dunraven Heights Water Co

Groundwater 26 people served
0 violations

Circle C Camp

Groundwater 26 people served
0 violations

Fire Mountain Programs

1 health-based
Groundwater 26 people served
1 violation (5yr) · 1 health-based · All resolved

Boulder Brook

Surface water 25 people served
0 violations

Gypsy Baron

Groundwater 25 people served
0 violations

Aspen Glen Cpgd

Groundwater 25 people served
0 violations

Bighorn

Groundwater 25 people served
0 violations

Green Pipeline

Groundwater 25 people served
0 violations

Endo Valley

Groundwater 25 people served
0 violations

Bear Lake

Surface water 25 people served
0 violations

Y.C.C. Camp

Groundwater 25 people served
0 violations

Grand Lake Entrance

Groundwater 25 people served
0 violations

Amberwood Estate Llp

Groundwater 24 people served
0 violations

Hewlet Packard - Hermit Park

Groundwater 22 people served
0 violations

Park Entrance Mutual Pipeline

Groundwater 22 people served
0 violations

Deer Mountain Cabins

Groundwater 20 people served
0 violations

Park Entrance Mtl Ppln&Wtr Co

Groundwater 20 people served
0 violations

Chalet Of Estes Park

Surface water 20 people served
0 violations

Green Pipeline

Groundwater under influence of surface water 20 people served
0 violations

Whispering Pines Cottages

Groundwater 19 people served
0 violations

Hondius Beaver Water Co

Groundwater 18 people served
0 violations

Never Summer Ranch

Groundwater 5 people served
0 violations

Twin Owls

Groundwater 2 people served
0 violations

Spruce Lake Rv Park

Surface water 0
0 violations

Mountain Water Service

Purchased surface water 0
0 violations

Wild Basin Rs

Surface water 0
0 violations

A Bay Roaring Fork Cg

Groundwater 0
0 violations

All Budget Inn

Groundwater 0
0 violations

Lily Lake

Groundwater 0
0 violations

Lazy B Ranch

Groundwater 0
0 violations

Sprague Lake Pa

Groundwater 0
0 violations

Tiny Town Cottages

Groundwater 0
0 violations

Manor Rv Park

Groundwater 0
0 violations

Black Cabin Resort No658

Groundwater 0
0 violations

Estes Park Mt Shop

Groundwater 0
0 violations

Colorado River Trailhead

Groundwater 0
0 violations

Andersons Wonderview Ltd

Groundwater 0
0 violations

Endo Valley Pa

Surface water 0
0 violations

Timberlane Motor Lodge

Groundwater 0
0 violations

Harmony Foundation

Groundwater 0
0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

24 violations
Has active
TTHMHealth-Based
17 violations
All resolved
Total Haloacetic Acids (HAA5)Health-Based
15 violations
All resolved
Surface Water Treatment RuleHealth-Based
14 violations
All resolved
NitrateHealth-Based

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved
Public NoticeMonitoring
22 violations
Has active
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

11 violations
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

5 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
3 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
LEAD AND COPPER RULE REVISIONSMonitoring
1 violation
All resolved
E. COLIMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Fort Collins (80517) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 115.

Fewer violations 97th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Reverse Osmosis System

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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