CITY REPORT CO

Clifton, CO: PFAS Found in Water - Home Safety 58/100

1 ZIP code · 3 water systems · Updated

ZipCheckup grade for Clifton: C.

A mixed picture - some signals here are worth your attention.

Across Clifton, EPA compliance data for CO sits at a moderate level - not alarming, but not uniformly clean across all service areas either.

How Clifton Compares

Clifton58/100
Colorado avg59/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
C · 58
Avg Safety Score
Zone 1
Radon Risk (High)
$228K
Median Home Value
$2,400
Est. Remediation (1.1% of home value)

Key Facts for Clifton Residents

  • Your city's water systems recorded 57 violations in the past 5 years.
  • Average lead level: 0.0022 mg/L.
  • Homes built before 1986: 58% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 12.1 - above typical levels.

Clifton's Water Providers

Structurally, Clifton, CO's water supply is divided. Federal data identifies 3 water systems in the area, with 3 providers serving the bulk of residential connections. These utilities operate independently, meaning rate-setting authority and EPA compliance accountability are distributed rather than centralized.

Overview

We track home safety data for 1 ZIP code in Clifton, Colorado (population ~13,454), covering 3 community water systems serving approximately 130,140 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Clifton: C (58/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Clifton water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0022 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
E. coli Microbiological 4 1
Fecal Coliform Microbiological 4 1
Contaminant 2005 Other 2 1
Contaminant 2010 Other 2 1
Contaminant 2015 Other 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
81520 C 57 0 Ute Wcd

All ZIP Codes in Clifton

  • 81520 [C] - 57 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Clifton Community Health Snapshot

11.4%
Asthma (US: 9.8%)
9.8%
Diabetes (US: 10.4%)
16.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.4% ↑
Diabetes 9.8% ↓
Mental Health 16.6% ↑

Vertical line = national average. Above national · Below national

What's in Clifton's Water?

E. coli 4 violations
Microbiological
Gastrointestinal illness, potentially fatal
Fecal Coliform 4 violations
Microbiological
Contaminant 2005 2 violations
Other

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Clifton Infrastructure Age

1987
Median Build Year
58%
Built Before 1986
10%
Built Before 1970
Copper
Likely Pipe Material

With 58% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Lead solder was standard in copper plumbing until federally banned in 1986; lead pipes were common in service lines pre-1970. Clifton's median build year of 1987 reflects a housing stock where these older materials are a pervasive feature - not a rare legacy - of the residential plumbing landscape.

1987
Median Year Built
58%
Pre-1986 (Lead Paint Risk)
10%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (10%) 1970–1986 (48%) Post-1986 (42%)

Over half of homes in Clifton were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Clifton

The equity impact of remediation in Clifton sits at a moderate level - real enough to plan for, within reach for most.

Median Home Value
$228,000
Est. Remediation
$2,400
Remediation as % of home value 1.1%

Remediation costs are moderate relative to home values in Clifton. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 50% below the Colorado average.

Clifton: Lead Risk & Vulnerable Populations

58%
Homes Built Before 1986
0.0022
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Even where utility-side monitoring meets Lead and Copper Rule requirements, the 58% pre-rule share in Clifton keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Clifton: NFIP Claim Records and Water-Quality Context

1
Total FEMA Flood Claims
$11,608
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Clifton contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,608. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,400</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Clifton

  1. Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for E. coli can reduce the most common contaminant found in Clifton's water.
  3. Check your home's plumbing. With 58% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Clifton, CO?
Clifton has an average Home Safety Score of 58/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 57 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Clifton have?
Clifton water systems have a total of 57 EPA violations. Violations are tracked across 1 ZIP code.
Does Clifton water have lead?
The average 90th-percentile lead level in Clifton is 0.0022 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Clifton compare to Colorado average?
Clifton has an average Home Safety Score of 58/100, which is below the Colorado state average of 59/100 for the same model series.
How many water systems serve Clifton?
Clifton is served by 3 public water systems across 1 ZIP code, serving approximately 13,454 people.
How much does it cost to fix water issues in Clifton?
Estimated remediation costs in Clifton average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesColorado → Clifton, CO

How to cite this page

APA ZipCheckup. (2026). Clifton, CO: PFAS Found in Water - Home Safety 58/100. https://zipcheckup.com/cities/co/clifton/
BibTeX
@misc{zipcheckup-cities-co-clifton,
  author = {{ZipCheckup}},
  title  = {{Clifton, CO: PFAS Found in Water - Home Safety 58/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/co/clifton/}
}

Page version: August 2026.

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