Agassiz Water Users District
EPA ID: ND1801056 · 3,438 people served · 15 ZIP codes
Since the flagged events, Agassiz Water Users District resolved all 1 violation — compliant today, 3,438 residents served.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Agassiz Water Users District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The Agassiz Water Users District serves a community with a median household income of $74,688 and an estimated 70,383 residents across its service area. Approximately 75% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Agassiz Water Users District'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.
About 1% of homes in Grand Forks County, North Dakota rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 61th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How Agassiz Water Users District compares to EPA limits
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 4 detections recorded.
Comparable Water Systems
Similar-sized systems in North Dakota
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
Agassiz Water Users District (EPA ID: ND1801056) is a community water system in North Dakota that serves approximately 3,438 people from groundwater sources.
This system provides water to 15 ZIP codes across 14 communities.
Average Home Safety Score: D (54/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 58235 | 0.00584 mg/L | No | N/A |
| 58261 | 0.00489 mg/L | No | N/A |
| 58231 | 0.00194 mg/L | No | N/A |
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 ND or modeled from parcel and building-footprint data.
- 58201 — Grand Forks
- 58203 — Grand Forks
- 58205 — Grand Forks Afb
- 58214 — Arvilla
- 58228 — Emerado
- 58231 — Fordville
- 58233 — Forest River
- 58235 — Gilby
- 58237 — Grafton
- 58244 — Inkster
- 58251 — Larimore
- 58256 — Manvel
- 58258 — Mekinock
- 58261 — Minto
- 58266 — Niagara
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Agassiz Water Users District (ND1801056) on EPA.gov.
Frequently Asked Questions
Is Agassiz Water Users District water safe to drink?
Agassiz Water Users District has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Agassiz Water Users District serve?
Agassiz Water Users District serves approximately 3,438 people across 15 ZIP codes in North Dakota.
Where does Agassiz Water Users District get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
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 →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
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
Agassiz Water Users District (EPA ID: ND1801056) — request the latest Consumer Confidence Report or ask about specific contaminants.