ZipCheckup grade for 58040: C.
A mixed picture - some signals here are worth your attention.
Your top priority: test this home for radon. Check your ZIP → EPA radon map
Gwinner, ND (58040): 1 Violation Recorded for Mapped Water Systems - 66/100
EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: Southeast Wud (central-lisbon))
EPA records for the water systems mapped to 58040 in Gwinner, ND contain 1 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 1 violation (non-health) (since 2021).
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
- Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 58040. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
Score Breakdown
Overall Home Safety Score: 66/100
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 (5) HIGH
Your Water System
ZIP code 58040 in Gwinner, North Dakota is mapped to the water system Southeast Wud (central-lisbon) (EPA ID: ND3701448). This system provides water to approximately 1,675 people from groundwater sources.
There are 2 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Southeast Wud (central-lisbon) | ND3701448 | 1,675 | Groundwater |
| Southeast Wud (east) | ND3901068 | 4,225 | Groundwater |
Other Water Quality Reports in North Dakota
- 58001 (Abercrombie)
- 58002 (Absaraka)
- 58004 (Amenia)
- 58005 (Argusville)
- 58006 (Arthur)
- 58007 (Ayr)
- 58008 (Barney)
- 58009 (Blanchard)
- 58011 (Buffalo)
- 58012 (Casselton)
- 58013 (Cayuga)
- 58015 (Christine)
- 58016 (Clifford)
- 58017 (Cogswell) - 1 violation recorded for mapped water systems
- 58018 (Colfax)
- 58021 (Davenport)
- 58027 (Enderlin) - 1 violation recorded for mapped water systems
- 58029 (Erie)
- 58030 (Fairmount)
- 58031 (Fingal)
Nearby Water Quality Reports
- 58069 (Stirum) - 8 mi - 1 violation recorded for mapped water systems
- 58060 (Milnor) - 9 mi - 1 violation recorded for mapped water systems
- 58032 (Forman) - 11 mi - 1 violation recorded for mapped water systems
- 58067 (Rutland) - 12 mi
- 58017 (Cogswell) - 13 mi - 1 violation recorded for mapped water systems
- 58013 (Cayuga) - 14 mi
- 58054 (Lisbon) - 16 mi - 1 violation recorded for mapped water systems
- 58043 (Havana) - 18 mi
- 58033 (Fort Ransom) - 19 mi - 1 violation recorded for mapped water systems
- 58057 (Mcleod) - 21 mi - 1 violation 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 Southeast Wud (central-lisbon) (ND3701448) 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.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 58040 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) MODERATE
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 Gwinner
Based on local data for ZIP 58040, 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 Gwinner has 1 FEMA flood claim 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)
Gutter Installation & Repair
The median home in 58040 was built around 1983. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Gwinner is 1983; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsService 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 58040 safe to drink?
EPA SDWIS records 1 violation since 2021 across the water systems mapped to ZIP 58040 (primary system: Southeast Wud (central-lisbon)), 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 58040's water come from?
The recorded water source for Southeast Wud (central-lisbon), a system mapped to ZIP code 58040, is Groundwater. This system serves approximately 1,675 people.
How does Gwinner water compare to the national average?
Gwinner's Home Safety Score ranks lower than 71% of U.S. ZIP codes, and lower than 95% of ZIP codes within North Dakota.
How can I get my water tested in Gwinner?
If Southeast Wud (central-lisbon) 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.
What is the radon risk for 58040?
58040 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Sargent County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 58040?
FEMA records contain 1 flood insurance claim filed in ZIP code 58040; the recorded rated-zone value (the most frequent one if there are several claims) is A09, 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). Gwinner, ND (58040): 1 Violation Recorded for Mapped Water Systems - 66/100. https://zipcheckup.com/report/58040/
@misc{zipcheckup-report-58040,
author = {{ZipCheckup}},
title = {{Gwinner, ND (58040): 1 Violation Recorded for Mapped Water Systems - 66/100}},
year = {2026},
url = {https://zipcheckup.com/report/58040/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 58040
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 58069 | Stirum, ND | 8.3 mi | N/A | 1 |
| 58060 | Milnor, ND | 9.0 mi | N/A | 1 |
| 58032 | Forman, ND | 10.8 mi | N/A | 1 |
| 58067 | Rutland, ND | 11.8 mi | N/A | 0 |
| 58017 | Cogswell, ND | 13.4 mi | N/A | 1 |
| 58013 | Cayuga, ND | 13.9 mi | N/A | 0 |
| 58054 | Lisbon, ND | 16.0 mi | N/A | 1 |
| 58043 | Havana, ND | 18.2 mi | N/A | 0 |
| 58033 | Fort Ransom, ND | 19.4 mi | N/A | 1 |
| 58057 | Mcleod, ND | 21.0 mi | N/A | 1 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings