Northern Douglas County Water Supply District
EPA ID: CO0118016 · 6,160 people served · 4 ZIP codes
ZipCheckup's reading of EPA SDWIS for Northern Douglas County Water Supply District (CO0118016): no EPA violations recorded in the last five years. EPA data: Northern Douglas County Water Supply District - zero violations, five years, 6,160 served.
Data: EPA SDWIS
Service Area Map
Coverage area for Northern Douglas County Water Supply District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Northern Douglas County Water Supply District serves a community with a median household income of $146,016 and an estimated 121,742 residents across its service area.
🌊 Where Does Your Water Come From?
Northern Douglas County Water Supply District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 17 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in Colorado
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Northern Douglas County Water Supply District (EPA ID: CO0118016) is a community water system in Colorado that serves approximately 6,160 people from surface water sources.
This system provides water to 4 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CO or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Northern Douglas County Water Supply District (CO0118016) on EPA.gov.
Frequently Asked Questions
Is Northern Douglas County Water Supply District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Northern Douglas County Water Supply District in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Northern Douglas County Water Supply District serve?
Northern Douglas County Water Supply District serves approximately 6,160 people across 4 ZIP codes in Colorado.
Where does Northern Douglas County Water Supply District get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Northern Douglas County Water Supply District, CO. https://zipcheckup.com/water-system/co0118016/
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