ZipCheckup grade for 80124: 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
Lone Tree, CO (80124): PFAS Detected in Mapped Water Systems - 48/100
EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Southgate Water Supply District)
EPA records for the water systems mapped to 80124 in Lone Tree, CO contain 7 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 7 violations (non-health) (since 2021).
- Lead The reported 90th-percentile lead result of 0.009 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 4 cumulative NFIP claim records. Claim evidence is historical, not current map coverage.
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The compiled record for Lone Tree (80124) yields 1 high-priority finding; critical-level alerts are absent from the same data.
Score Breakdown
Overall Home Safety Score: 48/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) HIGH
Your Water System
ZIP code 80124 in Lone Tree, Colorado is mapped to the water system Southgate Water Supply District (EPA ID: CO0103721). This system provides water to approximately 55,000 people from surface water sources.
There are 5 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Southgate Water Supply District | CO0103721 | 55,000 | Surface water |
| Highlands Ranch Water Supply District | CO0118015 | 103,444 | Surface water |
| Northern Douglas County Water Supply District | CO0118016 | 6,160 | Surface water |
| Castle Pines North Md | CO0118006 | 12,800 | Surface water |
| Beverly Hills Mutual Wc | CO0118001 | 325 | Groundwater |
Other Water Quality Reports in Colorado
- 80001 (Arvada)
- 80002 (Arvada) - 6 violations recorded for mapped water systems
- 80003 (Arvada) - 7 violations recorded for mapped water systems
- 80004 (Arvada) - 6 violations recorded for mapped water systems
- 80005 (Arvada) - 7 violations recorded for mapped water systems
- 80006 (Arvada)
- 80007 (Arvada) - 9 violations recorded for mapped water systems
- 80010 (Aurora)
- 80011 (Aurora)
- 80012 (Aurora) - 34 violations recorded for mapped water systems
- 80013 (Aurora) - 4 violations recorded for mapped water systems
- 80014 (Aurora) - 34 violations recorded for mapped water systems
- 80015 (Aurora) - 4 violations recorded for mapped water systems
- 80016 (Aurora) - 32 violations recorded for mapped water systems
- 80017 (Aurora)
- 80018 (Aurora) - 4 violations recorded for mapped water systems
- 80019 (Aurora) - 34 violations recorded for mapped water systems
- 80020 (Broomfield) - 14 violations recorded for mapped water systems
- 80021 (Broomfield) - 9 violations recorded for mapped water systems
- 80022 (Commerce City)
Nearby Water Quality Reports
- 80130 (Littleton) - 2 mi
- 80112 (Englewood) - 2 mi - 10 violations recorded for mapped water systems
- 80111 (Englewood) - 4 mi - 5 violations recorded for mapped water systems
- 80122 (Littleton) - 4 mi
- 80126 (Littleton) - 4 mi
- 80134 (Parker) - 5 mi - 27 violations recorded for mapped water systems
- 80121 (Littleton) - 5 mi - 6 violations recorded for mapped water systems
- 80237 (Denver) - 6 mi - 34 violations recorded for mapped water systems
- 80129 (Littleton) - 7 mi
- 80120 (Littleton) - 7 mi - 6 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Southgate Water Supply District (CO0103721) on EPA.gov.
5 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.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 80124.
Detected compounds: PFBA, PFPeA, PFHxA, PFBS.
Highest measured level: 0.0087 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.
Environmental Hazards (11) MODERATE
Home & Infrastructure (7) MODERATE
Area data suggest possible HVAC concerns - talk to a local expert.
Call (844) 439-2761Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Lone Tree
Based on local data for ZIP 80124, 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 Lone Tree has 4 FEMA flood claims 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)
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 80124 safe to drink?
EPA SDWIS records 7 violations since 2021 across the water systems mapped to ZIP 80124 (primary system: Southgate Water Supply District), including 0 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 80124's water come from?
The recorded water source for Southgate Water Supply District, a system mapped to ZIP code 80124, is Surface water. This system serves approximately 55,000 people.
How does Lone Tree water compare to the national average?
Lone Tree's Home Safety Score ranks lower than 94% of U.S. ZIP codes, and lower than 87% of ZIP codes within Colorado.
How can I get my water tested in Lone Tree?
If Southgate 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.
Is lead a concern in 80124 tap water?
The Lead and Copper Rule record selected for 80124 reports a 90th-percentile lead result of 0.009 mg/L for a water system mapped to this ZIP (record date 2002-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 80124?
80124 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Douglas 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 80124's water?
Yes, PFAS have been detected in samples from water systems mapped to 80124. 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 80124?
FEMA records contain 4 flood insurance claims filed in ZIP code 80124; 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
ZipCheckup. (2026). Lone Tree, CO (80124): PFAS Detected in Mapped Water Systems - 48/100. https://zipcheckup.com/report/80124/
@misc{zipcheckup-report-80124,
author = {{ZipCheckup}},
title = {{Lone Tree, CO (80124): PFAS Detected in Mapped Water Systems - 48/100}},
year = {2026},
url = {https://zipcheckup.com/report/80124/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 80124
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 80130 | Littleton, CO | 2.0 mi | C | 0 |
| 80112 | Englewood, CO | 2.1 mi | D | 10 |
| 80111 | Englewood, CO | 4.2 mi | D | 5 |
| 80122 | Littleton, CO | 4.2 mi | C | 0 |
| 80126 | Littleton, CO | 4.4 mi | C | 0 |
| 80134 | Parker, CO | 4.8 mi | D | 27 |
| 80121 | Littleton, CO | 5.4 mi | C | 6 |
| 80237 | Denver, CO | 6.3 mi | C | 34 |
| 80129 | Littleton, CO | 6.7 mi | C | 0 |
| 80120 | Littleton, CO | 7.1 mi | C | 6 |
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