ZipCheckup grade for 80640: D.

Federal records show several conditions worth reviewing.

Your top priority: see the breakdown below and consider a certified water filter. Check your ZIP → NSF certified filters

Health Violations Found
D 47

Henderson, CO (80640): PFAS Above 2029 MCL Level - 47/100

EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: South Adams County Water Supply District)

Health Violations Found PFAS Detected High County Radon Potential

Health-based violation records by water system:

EPA records for the water systems mapped to 80640 in Henderson, CO contain 9 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 1 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
D 47/100
Water Quality PFAS above MCL 1 health-based violation
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 1 claim
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 1 health-based violation and 8 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
  • Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.
Contaminant Summary
Health Violations
9 violations 1 health-based PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
D
ZIP-level Home Safety model score: 47 / 100
Bottom 5% of U.S. ZIP codes
4
Water Systems
75,559
People Served
1
Health Violations (since 2021)Median is 0
Surface water
Water Source
Zone 1
County Radon Potential · High
$464K
Median Home ValueState median: $430K

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Score Breakdown

Overall Home Safety Score: 47/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
80/100
Observed
PFAS MCL screen
0/100
Observed
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
40/100
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) CRITICAL

Your Water System

ZIP code 80640 in Henderson, Colorado is mapped to the water system South Adams County Water Supply District (EPA ID: CO0101140). This system provides water to approximately 75,559 people from surface water sources.

There are 4 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
South Adams County Water Supply District CO0101140 75,559 Surface water
City of Brighton CO0101025 56,304 Surface water
City of Thornton CO0101150 226,465 Surface water
Hazeltine Heights Water CO0101070 261 Groundwater

Other Water Quality Reports in Colorado

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for South Adams County Water Supply District (CO0101140) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 80640. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.

Detected compounds: PFPeA, PFHxA, PFBA, PFOS, PFBS, PFOA, PFHxS, PFHpA.

Highest measured level: 0.0193 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) OK
Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Henderson

Based on local data for ZIP 80640, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Henderson has 1 FEMA flood claim on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Roofing Inspection & Repair

Active weather alerts in Colorado increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 80640 safe to drink?

EPA SDWIS records 9 violations since 2021 across the water systems mapped to ZIP 80640 (primary system: South Adams County Water Supply District), including 1 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 80640's water come from?

The recorded water source for South Adams County Water Supply District, a system mapped to ZIP code 80640, is Surface water. This system serves approximately 75,559 people.

How does Henderson water compare to the national average?

Henderson's Home Safety Score ranks lower than 95% of U.S. ZIP codes, and lower than 90% of ZIP codes within Colorado.

How can I get my water tested in Henderson?

If South Adams County Water Supply District supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

What is the radon risk for 80640?

80640 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Adams County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 80640's water?

Yes, PFAS have been detected in samples from water systems mapped to 80640. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 80640?

FEMA records contain 1 flood insurance claim filed in ZIP code 80640; the recorded rated-zone value (the most frequent one if there are several claims) is X, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Henderson, CO (80640): PFAS Above 2029 MCL Level - 47/100. https://zipcheckup.com/report/80640/
BibTeX 
@misc{zipcheckup-report-80640,
  author = {{ZipCheckup}},
  title  = {{Henderson, CO (80640): PFAS Above 2029 MCL Level - 47/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/80640/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 80640

ZIP Code City, State Distance Grade Violations
80229 Denver, CO 3.5 mi D 9
80233 Denver, CO 3.7 mi D 8
80024 Dupont, CO 4.5 mi C 0
80602 Brighton, CO 4.9 mi D 22
80614 Eastlake, CO 5.1 mi N/A 0
80022 Commerce City, CO 5.4 mi C 0
80601 Brighton, CO 5.5 mi D 9
80241 Thornton, CO 5.7 mi D 8
80603 Brighton, CO 6.3 mi D 2
80037 Commerce City, CO 7.0 mi N/A 0

Contaminants Detected in 80640

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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