Knob Creek Water System
EPA ID: NC0188120 · 445 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Knob Creek Water System (NC0188120): 1 EPA violation in the last five years. Federal water data for Knob Creek Water System logs 1 historical violation - all addressed and cleared, leaving the utility in current compliance for 445 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Knob Creek Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Knob Creek Water System serves a community with a median household income of $66,206 and an estimated 7,850 residents across its service area. Approximately 42% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 57% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Knob Creek Water System's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How Knob Creek Water System compares to EPA limits
What This Means For You
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in North Carolina
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
Knob Creek Water System (EPA ID: NC0188120) is a community water system in North Carolina that serves approximately 445 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0021 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.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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 NC 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 Knob Creek Water System (NC0188120) on EPA.gov.
Frequently Asked Questions
Is Knob Creek Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Knob Creek Water System; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Knob Creek Water System serve?
Knob Creek Water System serves approximately 445 people across 2 ZIP codes in North Carolina.
Where does Knob Creek Water System get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Knob Creek Water System (NC): 1 EPA Violation. https://zipcheckup.com/water-system/nc0188120/
@misc{zipcheckup-water-system-nc0188120,
author = {{ZipCheckup}},
title = {{Knob Creek Water System (NC): 1 EPA Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nc0188120/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Knob Creek Water System (EPA ID: NC0188120) - request the latest Consumer Confidence Report or ask about specific contaminants.