Water Quality in Fort Collins, CO (80550)
EPA violation data for public water systems serving ZIP code 80550.
Active Health Violations
41 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 98% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
46,456
Population
74
Water Systems
199
Violations (5yr)
41
Health-Based
Location
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Water Systems Serving This Area (74)
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) ✓
Greeley City Of
All resolved Surface water 132,310 people served
5 violations (5yr)
· All resolved
Lead tested: 3 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
Windsor Town Of
All resolved Purchased surface water 23,500 people served
2 violations (5yr)
· All resolved
Lead tested: 5.8 ppb (limit: 15 ppb) ✓
River Run Ranch Rv Park South
Purchased groundwater 2,560 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Boulder Meadows Mhp
All resolved Purchased surface water 1,657 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Cloverleaf Colorado Llc
All resolved Purchased surface water 1,007 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Adams County Parks
All resolved Groundwater 868 people served
22 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Hickory Village
All resolved Purchased surface water 816 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rocky Mountain Gateway
All resolved Groundwater 686 people served
1 violation (5yr)
· All resolved
Gilpin County School
All resolved Groundwater 562 people served
1 violation (5yr)
· All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓
Smith Creek Crossing
Purchased groundwater 518 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Riverview Cg
3 health-based Surface water 450 people served
12 violations (5yr)
· 3 health-based
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Sargent Elem And New High School Re33
All resolved Groundwater 426 people served
10 violations (5yr)
· All resolved
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Sunset Wd
Purchased surface water 425 people served
0 violations
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Kennedy Mountain Campus
Groundwater 417 people served
0 violations
Usdot Trans Tech Cnt
All resolved Groundwater 385 people served
1 violation (5yr)
· All resolved
Lead tested: 15 ppb (limit: 15 ppb)
Caliche School
Groundwater 350 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb) ✓
Camp Timberline
All resolved Groundwater 259 people served
1 violation (5yr)
· All resolved
Pioneer Mobile Home Park
Purchased surface water 250 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Tagawa Greenhouses Inc
2 health-based Groundwater 250 people served
3 violations (5yr)
· 2 health-based · All resolved
Lead tested: 4 ppb (limit: 15 ppb) ✓
Tomahawk Ranch
All resolved Groundwater 216 people served
1 violation (5yr)
· All resolved
Twisted Pine Girl Scout Camp
Groundwater 216 people served
0 violations
Flatrock Training Center Ws
Groundwater 204 people served
0 violations
Sargent High School Gym
Groundwater 200 people served
0 violations
Briggsdale School
All resolved Groundwater 194 people served
1 violation (5yr)
· All resolved
Lead tested: 10 ppb (limit: 15 ppb) ✓
Redi Services East
Purchased surface water 180 people served
0 violations
Girl Scouts Meadow Mtn Ranch
Groundwater 175 people served
0 violations
Farmers Union Education Center
Groundwater 169 people served
0 violations
Alpensee Wd
Groundwater 168 people served
0 violations
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Creekside South Estates Metro District
5 health-based Groundwater 160 people served
9 violations (5yr)
· 5 health-based · All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓
Ellis Ranch Event Center
Groundwater 157 people served
0 violations
Grover Town Of
All resolved Groundwater 154 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Rock Creek Farm Ws
Groundwater 151 people served
0 violations
Sky High Scout Ranch
Groundwater 144 people served
0 violations
Colorado Air And Space Port
Purchased groundwater 140 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb) ✓
Storm King Mhp
Purchased surface water 135 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Gateway Childcare And Preschool
1 health-based Purchased surface water 116 people served
1 violation (5yr)
· 1 health-based · All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓ Copper tested: 1660 ppb (limit: 1300 ppb)
Redi Services West
Purchased surface water 115 people served
0 violations
Rocky Ridge Music Center
9 health-based Surface water 100 people served
16 violations (5yr)
· 9 health-based · All resolved
Sylvan Dale Ranch
Groundwater 98 people served
0 violations
Inland House Condominium Association
1 health-based Groundwater 90 people served
2 violations (5yr)
· 1 health-based · All resolved
Lead tested: 7 ppb (limit: 15 ppb) ✓
Derby Village Mobile Home Park
Purchased groundwater 81 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Satank Wa
All resolved Purchased surface water 80 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
John Timothy Stone Cliffs Assoc
Purchased surface water 80 people served
0 violations
Mansker Station
Groundwater 77 people served
0 violations
Brighton Village Llc
Purchased surface water 77 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Cslb 41149 Us 6
5 health-based Groundwater 76 people served
5 violations (5yr)
· 5 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Cslb 41184 Us 6
Groundwater 72 people served
0 violations
Sky Corral Ranch
Groundwater 64 people served
0 violations
Highlands Presbyterian Camp
2 health-based Surface water 63 people served
31 violations (5yr)
· 2 health-based
Riverdale Animal Shelter
All resolved Groundwater 62 people served
2 violations (5yr)
· All resolved
Lead tested: 1.5 ppb (limit: 15 ppb) ✓
Abbey Of St Walburga
Groundwater 62 people served
0 violations
Howling Coyote Tavern
All resolved Groundwater 56 people served
3 violations (5yr)
· All resolved
Northside Village Mhp
Purchased surface water 55 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb) ✓
Ravencrest Chalet
11 health-based Purchased surface water 55 people served
27 violations (5yr)
· 11 health-based · All resolved
Lead tested: 0.5 ppb (limit: 15 ppb) ✓
Lake John Resort
All resolved Groundwater 52 people served
2 violations (5yr)
· All resolved
Spurz Grill
Groundwater 50 people served
0 violations
Redtail Gas Plant
Groundwater 48 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb) ✓
Lazy Acres Girl Scout Camp
Groundwater 42 people served
0 violations
Quandry Condos Skiers Edge
1 health-based Groundwater 34 people served
2 violations (5yr)
· 1 health-based
West Crooked Lake Resort
Groundwater 30 people served
0 violations
Timberlost Rca
Groundwater 30 people served
0 violations
Ceesi
Groundwater 30 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb) ✓
Opal Foods Llc Roggen Farm
Groundwater 27 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Stallion Oil Field Services
Purchased surface water 25 people served
0 violations
Peetz Table Wind Energy Farm
Groundwater 16 people served
0 violations
Inn At Zapata Ranch
All resolved Groundwater 15 people served
7 violations (5yr)
· All resolved
Opal Foods Llc Hudson Farm
1 health-based Groundwater 10 people served
2 violations (5yr)
· 1 health-based · All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓
Wright Investment Group Inc
Groundwater 7 people served
0 violations
Contaminants Found
Interim Enhanced Surface Water Treatment RuleHealth-Based
32 violations
All resolved
TTHMHealth-Based
21 violations
All resolved
Surface Water Treatment RuleHealth-Based
18 violations
All resolved
NitrateHealth-Based
At high levels, nitrate can cause blue baby syndrome in infants.
10 violations
All resolved
Lead and Copper RuleHealth-Based
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
8 violations
All resolved
Groundwater RuleHealth-Based
7 violations
Has active
ArsenicHealth-Based
A naturally occurring element that can cause cancer and other health effects at high levels.
6 violations
All resolved
Public NoticeMonitoring
28 violations
Has active
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
16 violations
Has active
Total Haloacetic Acids (HAA5)Monitoring
6 violations
All resolved
ChloriteMonitoring
3 violations
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
3 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
2 violations
All resolved
E. COLIMonitoring
2 violations
All resolved
Chlorine dioxideMonitoring
1 violation
All resolved
Carbon tetrachlorideMonitoring
1 violation
All resolved
Xylenes, TotalMonitoring
1 violation
All resolved
1,1-DichloroethyleneMonitoring
1 violation
All resolved
BenzeneMonitoring
1 violation
All resolved
EthylbenzeneMonitoring
1 violation
All resolved
cis-1,2-DichloroethyleneMonitoring
1 violation
All resolved
StyreneMonitoring
1 violation
All resolved
TolueneMonitoring
1 violation
All resolved
1,2,4-TrichlorobenzeneMonitoring
1 violation
All resolved
o-DichlorobenzeneMonitoring
1 violation
All resolved
TetrachloroethyleneMonitoring
1 violation
All resolved
CHLOROBENZENEMonitoring
1 violation
All resolved
1,2-DichloroethaneMonitoring
1 violation
All resolved
1,2-DichloropropaneMonitoring
1 violation
All resolved
Vinyl chlorideMonitoring
1 violation
All resolved
DICHLOROMETHANEMonitoring
1 violation
All resolved
p-DichlorobenzeneMonitoring
1 violation
All resolved
TrichloroethyleneMonitoring
1 violation
All resolved
trans-1,2-DichloroethyleneMonitoring
1 violation
All resolved
1,1,1-TrichloroethaneMonitoring
1 violation
All resolved
1,1,2-TrichloroethaneMonitoring
1 violation
All resolved
Di(2-ethylhexyl) phthalateMonitoring
1 violation
All resolved
LEAD AND COPPER RULE REVISIONSMonitoring
1 violation
All resolved
Combined UraniumMonitoring
1 violation
All resolved
Beryllium, TotalMonitoring
1 violation
All resolved
MercuryMonitoring
1 violation
All resolved
SeleniumMonitoring
1 violation
All resolved
ChromiumMonitoring
1 violation
All resolved
NickelMonitoring
1 violation
All resolved
BariumMonitoring
1 violation
All resolved
Thallium, TotalMonitoring
1 violation
All resolved
CadmiumMonitoring
1 violation
All resolved
Antimony, TotalMonitoring
1 violation
All resolved
EndothallMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
Copper (Cu)
Exceeds limit1660 ppb measured
Action level: 1300 ppb
Sampled: Jul 2024
How Does This Compare?
Fort Collins (80550) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 199.
Fewer violations 98th 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
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
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
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.