City of Hillsboro
EPA ID: ND4900482 · 1,603 people served · 1 ZIP code
ZipCheckup's reading of EPA records for City of Hillsboro (ND4900482): 1 violation on record since 2021. Every entry among the 1 violation in EPA records for City of Hillsboro has a resolved status in the data; this utility delivers water to about 1,603 people.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Hillsboro Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with City of Hillsboro have a median household income of $79,250 and about 2,181 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
City of Hillsboro's water is classified in EPA records as a groundwater source. 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
Comparable Water Systems
Similar-sized systems in North Dakota
System Overview
City of Hillsboro (EPA ID: ND4900482) is a community water system in North Dakota that serves approximately 1,603 people from groundwater sources.
This system serves ZIP code 58045 in Hillsboro.
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, 2022 | Chlorine | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorine | Monitoring & Reporting | 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 | 2025-12-31 |
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
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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 ND or modeled from parcel and building-footprint data.
- 58045 - Hillsboro
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Hillsboro (ND4900482) on EPA.gov.
Frequently Asked Questions
Is City of Hillsboro water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Hillsboro; 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 City of Hillsboro serve?
City of Hillsboro serves approximately 1,603 people across 1 ZIP code in North Dakota.
Where does City of Hillsboro get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Hillsboro (ND): 1 EPA Violation. https://zipcheckup.com/water-system/nd4900482/
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title = {{City of Hillsboro (ND): 1 EPA Violation}},
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url = {https://zipcheckup.com/water-system/nd4900482/}
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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
City of Hillsboro (EPA ID: ND4900482) - request the latest Consumer Confidence Report or ask about specific contaminants.