WaterVerge

Is Burlington, CO Tap Water Safe to Drink?

Graded C-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

4K residents served 1 water system PWSID: CO0132005
Overall Score
55.8 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#153 of 246 in Colorado Top 80% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
C-GRADE
Water Quality Grade
55.8/100
waterverge.com
C- 55.8/100

Burlington, CO — Water Quality Report

Burlington's drinking water received a grade of C- (55.8 out of 100), indicating poor water quality. The city's 1 water system serves approximately 3,720 residents using groundwater.

Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 317 violations on record, including 84 health-based violations. 3 remain unresolved.

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

What to know about Burlington's water

Burlington ranks #153 out of 246 cities in Colorado for water quality, placing it below average in the state.

Burlington relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

Quality Breakdown

Water quality score

See methodology →
55.8 out of 100 Grade C-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
6.5/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.0 ppb (90th percentile).
Contaminants
14.2/20
C
1 PFAS compound detected.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Burlington, CO water safe to drink?

Concerns Identified

Burlington's drinking water has significant quality concerns based on EPA testing data. With a grade of C- (55.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 3,720 residents using groundwater (wells).

3
Active Violations
1.0 ppb
Lead (90th %ile)
1 compound
PFAS Detected
2 events
Disaster History

Recent water quality updates for Burlington

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

PFAS
1 PFAS "forever chemical" compound detected

Detected at levels within current EPA limits. PFAS persist indefinitely in the environment.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Burlington's water quality assessment. Grade: C- (55.8/100).

Disaster
SEVERE STORMS, FLOODING, AND TORNADOES

Federal disaster declaration (FEMA DR-4731). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
3 drinking water violations recorded

3 health-based. Contaminants: Nitrate.

Key contaminant findings

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

Lead Within Limits
Detected: 1.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: lithium at 28.0000 µg/L Limit: 0.004 µg/L (EPA MCL)

Detected but within current EPA limits. PFAS do not break down in the environment and can accumulate in the body over time. An activated carbon filter can reduce exposure.

Violation history

Burlington's water system has 317 total violations on record, including 84 health-based violations. 3 remain unresolved.

OtherMCLMR
Most recent violations:
Oct 2019 Public Notice Open
Mar 2018 Public Notice Open
Jan 2018 Nitrate Resolved
Jan 2018 Nitrate Resolved
Jan 2018 Nitrate Resolved

Flood & environmental risk

Kit Carson County has experienced 2 federally declared disasters since 2005. 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, FLOODING, AND TORNADOES
Flood FEMA DR-4731
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA DR-3224

Where does Burlington's water come from?

Burlington's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 3,720 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Burlington residents can do

Install a water filter

Recommended: Activated carbon or reverse osmosis filter. This addresses the specific contaminants found in Burlington'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.

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
1.0 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
28.0000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
Lithium
Inorganic
Detected
28.0 µg/L
State screening level: 60 µg/L · 47% of limit
DetectedNo federal MCLUCMR 5 Data (2023–2025)
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

317
Total violations
84
Health-based
3
Active / unresolved
Oct 2019
Most recent violation
Compliance Record

Violations & advisories

317 Total
3 Active
84 Health-based
314 Resolved
Violations by category
Nitrate Rule
89
Volatile Organic Chemicals
84
Inorganic Chemicals
81
Synthetic Organic Chemicals
43
Arsenic Rule
9
Oct 2019 Active
Public Notice
Other Violation 0
Mar 2018 Active
Public Notice
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2018 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Mar 2018
Jan 2018 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Mar 2018
Jan 2018 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Mar 2018
Oct 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Dec 2017
Oct 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Dec 2017
Oct 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Dec 2017
Oct 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Dec 2017
Oct 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Dec 2017
Jul 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2017
Jul 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2017
Jul 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2017
Jul 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2017
Jul 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Sep 2017
Apr 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2017
Apr 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2017
Apr 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2017
Apr 2017 Resolved
Nitrate
Max Contaminant Level
Health-Based Health Resolved Jun 2017
Showing 20 of 317 violations
Environmental Risk

Drought conditions

D3 — extreme drought

Kit Carson County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

6
Weeks at D2+ (current streak)
23.4%
Months in D2+ (last 30y)
6
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

2
Declared disasters
Aug 2023
Most recent
Flood
Most common type

Kit Carson County has experienced 2 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Aug 2023
SEVERE STORMS, FLOODING, AND TORNADOES
Flood FEMA #4731
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3224

Recommended water filters

Based on contaminants detected in Burlington's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
1 PFAS compound detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.0 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium 28.000 HI µg/L PFAS Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 4.0 ppb from 1993 (5.0 ppb) to 2025 (1.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
3,720
Water Systems
1
Water Source

Where Burlington's water comes from

Groundwater

Burlington's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 3,720 people through 1 water system.

Infrastructure

Water systems serving Burlington

System Name PWSID Population Source
BURLINGTON CITY OF CO0132005 3,720 GW
Regional Comparison

How Burlington compares

Full Colorado rankings →

Burlington's score of 55.8/100 is above the average of 45/100 among major Colorado cities. It outscores 9 of 10 nearby cities.

Burlington (this city)
55.8
Denver
39.6
Aurora
38.1
Lakewood
36.9
Colorado avg
45
City Profile

About Burlington, CO

Wikipedia →

Burlington is the home rule city that is the county seat of, and the most populous municipality in, Kit Carson County, Colorado, United States. The city population was 3,172 at the 2020 United States census.

Economic Profile
$61,528
Median Income
$1,012/mo
Median Rent
2.6%
Unemployment
Community
39.8
Median Age
571
People / sq mi
15%
College Educated
64.1%
Homeownership
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Frequently asked questions

Is Burlington, CO tap water safe to drink?

Burlington's water quality earned a grade of C- (55.8/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #153 out of 246 cities tested in Colorado.

What contaminants are in Burlington's water?

Lead was measured at 1.0 ppb (90th percentile). 1 PFAS compound was detected. 317 violations are on record.

How is Burlington'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 Burlington?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Burlington's water come from?

Burlington's water is sourced from Groundwater. The city has 1 water system serving approximately 3,720 residents.

What health violations has Burlington's water system had?

Burlington has 84 health-based violations on record. The most recent violation was recorded in October 2019. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Burlington's groundwater at risk of contamination?

Burlington uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 317 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Burlington's water compare to other cities?

Burlington ranks #153 out of 246 cities in Colorado (better than 38% of state cities) and #12511 out of 15744 cities nationally (21th percentile). The grade of C- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.