WaterVerge

Is Bailey, CO Tap Water Safe to Drink?

Graded C, with 14 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

783 residents served 2 water systems PWSID: CO0147010
Overall Score
61.8 / 100
Violations
14 active
Last Updated
May 2026
Source
Surface water
#141 of 246 in Colorado Top 76% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
CGRADE
Water Quality Grade
61.8/100
waterverge.com
C 61.8/100

Bailey, CO — Water Quality Report

Bailey's drinking water received a grade of C (61.8 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 783 residents using surface water.

Lead levels were measured at 0.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 111 violations on record, including 1 health-based violation. 14 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Bailey's water

Bailey ranks #141 out of 246 cities in Colorado for water quality, placing it below average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

As a small community water system, Bailey may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 23 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
61.8 out of 100 Grade C
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
12.8/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.5 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Surface water.
Water Safety

Is Bailey, CO water safe to drink?

Concerns Identified

Bailey's drinking water has significant quality concerns based on EPA testing data. With a grade of C (61.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 783 residents using surface water (rivers, lakes, or reservoirs).

14
Active Violations
0.5 ppb
Lead (90th %ile)
3 events
Disaster History

Recent water quality updates for Bailey

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Bailey's water quality assessment. Grade: C (61.8/100).

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Surface Water Treatment Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Disaster
SEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4229). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3224). Coastal Storm event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Bailey's water supply.

Lead Within Limits
Detected: 0.5 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Bailey's water system has 111 total violations on record, including 1 health-based violation. 14 remain unresolved. 23 violations were issued in the last 5 years.

OtherMRMONTT
Most recent violations:
Dec 2025 Public Notice Open
Oct 2025 Surface Water Treatment Rule Resolved
Sep 2025 Public Notice Open
Jul 2025 Consumer Confidence Rule Open
Jul 2025 Consumer Confidence Rule Open

Flood & environmental risk

Park County has experienced 3 federally declared disasters since 1969. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA DR-4229
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA DR-3224
SEVERE STORMS & FLOODING
Flood FEMA DR-261

Where does Bailey's water come from?

Bailey's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 783 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Bailey residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Bailey's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Bailey's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.5 ppb
EPA Action Level: 15 ppb · 3% of limit
Safe Level
Compliance Record

Violation summary

111
Total violations
1
Health-based
14
Active / unresolved
Dec 2025
Most recent violation
Compliance Record

Violations & advisories

111 Total
14 Active
1 Health-based
97 Resolved
Violations by category
Synthetic Organic Chemicals
31
Volatile Organic Chemicals
21
Surface Water Treatment Rule
10
Inorganic Chemicals
10
Consumer Confidence Rule
7
Dec 2025 Active
Public Notice
Other Violation 0
Sep 2025 Active
Public Notice
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jun 2025 Active
Public Notice
Other Violation 0
Jul 2023 Active
Consumer Confidence Rule
Other Violation 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
May 2022 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Jul 2019 Active
Consumer Confidence Rule
Other Violation 0
Jul 2017 Active
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2008 Active
Long Term 2 Enhanced Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Oct 2025 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2025
Apr 2025 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2025
Apr 2025 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2025
Dec 2024 Resolved
Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2024
Dec 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2024
Dec 2024 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Dec 2024
Showing 20 of 111 violations
Environmental Risk

Drought conditions

D4 — exceptional drought

Park County is currently in D4 (exceptional drought) per the U.S. Drought Monitor (week of May 5, 2026). 22.8% of the county is in D4 (exceptional) drought. Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

14
Weeks at D2+ (current streak)
24.3%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

3
Declared disasters
Jul 2015
Most recent
Flood
Most common type

Park County has experienced 3 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jul 2015
SEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES
Flood FEMA #4229
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3224
May 1969
SEVERE STORMS & FLOODING
Flood FEMA #261

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.5 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 5.5 ppb from 1993 (11.0 ppb) to 2025 (5.5 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Surface Water
Operator
Local Government
Population Served
783
Water Systems
2
Source breakdown
Surface Water
1
Groundwater
1
Water Source

Where Bailey's water comes from

Surface Water

Bailey's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 783 people through 2 water systems.

Infrastructure

Water systems serving Bailey

System Name PWSID Population Source
BAILEY WSD CO0147010 483 SW
WILL O WISP METRO DISTRICT CO0147200 300 GW
Regional Comparison

How Bailey compares

Full Colorado rankings →

Bailey's score of 61.8/100 is above the average of 45/100 among major Colorado cities. It outscores 9 of 10 nearby cities.

Bailey (this city)
61.8
Denver
39.6
Aurora
38.1
Lakewood
36.9
Colorado avg
45
City Profile

About Bailey, CO

Wikipedia →

Bailey is an unincorporated community and U.S. Post Office in northeastern Park County, Colorado, United States. Bailey's Post Office ZIP Code is 80421.

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Frequently asked questions

Is Bailey, CO tap water safe to drink?

Bailey's water quality earned a grade of C (61.8/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #141 out of 246 cities tested in Colorado.

What contaminants are in Bailey's water?

Lead was measured at 0.5 ppb (90th percentile). 111 violations are on record.

How is Bailey's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Bailey?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Bailey's water come from?

Bailey's water is sourced from Surface water. The city has 2 water systems serving approximately 783 residents.

What health violations has Bailey's water system had?

Bailey has 1 health-based violation on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 14 violations remain unresolved.

How does Bailey's water compare to other cities?

Bailey ranks #141 out of 246 cities in Colorado (better than 43% of state cities) and #11959 out of 15744 cities nationally (24th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.