CITY REPORT CO 4 HEALTH VIOLATIONS

Louisville, CO: 4 Health Violations - Home Safety 60/100

2 ZIP codes · 5 water systems · Updated

ZipCheckup grade for Louisville: C.

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

Louisville's water quality grade in CO reflects a middle-ground assessment - service areas range from fully compliant to violation-flagged in current EPA records.

How Louisville Compares

Louisville60/100
Colorado avg59/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
5
Water Systems
1
ZIPs with Violations
C · 60
Avg Safety Score
Zone 1
Radon Risk (High)
$823K
Median Home Value
$2,400
Est. Remediation (0.3% of home value)

Key Facts for Louisville Residents

  • Your city's water systems recorded 16 violations in the past 5 years.
  • Average lead level: 0.01 mg/L.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 8.71.

Louisville's Water Providers

Water supply in Louisville, CO follows a divided structure: 3 utilities account for the largest share of residential service out of 5 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.

Overview

We track home safety data for 2 ZIP codes in Louisville, Colorado (population ~33,998), covering 5 community water systems serving approximately 68,845 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 4 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Louisville: C (60/100)

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

Louisville water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0100 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)

  • Zone 1 (High): 2 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

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

Top Contaminants

Contaminant Category Violations ZIPs Affected
E. coli Microbiological 12 1
Fecal Coliform Microbiological 6 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Stage 1 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
80027 C 16 4 City of Louisville

All ZIP Codes in Louisville

Data Sources

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

Louisville Community Health Snapshot

10.3%
Asthma (US: 9.8%)
7.1%
Diabetes (US: 10.4%)
15.2%
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 10.3% ↑
Diabetes 7.1% ↓
Mental Health 15.2% ↑

Vertical line = national average. Above national · Below national

What's in Louisville's Water?

E. coli 12 violations
Microbiological
Gastrointestinal illness, potentially fatal
Fecal Coliform 6 violations
Microbiological
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure

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

How Remediation Costs Compare in Louisville

Remediation costs in Louisville are small relative to typical property values - the cost-to-value ratio here is favorable.

Median Home Value
$822,700
Est. Remediation
$2,400
Remediation as % of home value 0.3%

Remediation costs in Louisville are relatively low compared to home values. The $1,550–$3,350 estimated range is a small fraction of median property value. Home values are 82% above the Colorado average.

Louisville: Lead Risk & Vulnerable Populations

0.01
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.

Lead risk in Louisville appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Louisville: NFIP Claim Records and Water-Quality Context

10
Total FEMA Flood Claims
$22,878
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Louisville contains 10 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,878. 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 Louisville

  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 Louisville's water.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for Louisville, CO?
Louisville has an average Home Safety Score of 60/100 (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. 16 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Louisville have?
Louisville water systems have a total of 16 EPA violations, including 4 health-based violations. Violations are tracked across 2 ZIP codes.
Does Louisville water have lead?
The average 90th-percentile lead level in Louisville is 0.01 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 Louisville compare to Colorado average?
Louisville has an average Home Safety Score of 60/100, which is above the Colorado state average of 59/100 for the same model series.
How many water systems serve Louisville?
Louisville is served by 5 public water systems across 2 ZIP codes, serving approximately 33,998 people.
How much does it cost to fix water issues in Louisville?
Estimated remediation costs in Louisville average $2,400 per household, ranging from $1,550 to $3,350. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesColorado → Louisville, CO

How to cite this page

APA ZipCheckup. (2026). Louisville, CO: 4 Health Violations - Home Safety 60/100. https://zipcheckup.com/cities/co/louisville/
BibTeX
@misc{zipcheckup-cities-co-louisville,
  author = {{ZipCheckup}},
  title  = {{Louisville, CO: 4 Health Violations - Home Safety 60/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/co/louisville/}
}

Page version: August 2026.

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