01The verdict: is Minto water safe?
Based on EPA testing data, Minto's tap water is generally safe to drink. The water system earned a grade of A+ (97/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 604 residents using groundwater (wells).
Nothing over a legal limit
Every contaminant measured in Minto's water is within its EPA limit, and no violations are unresolved.
See the testing ↓A clean compliance record
Minto has no EPA violations on file — a stronger record than most systems its size.
See the record ↓A flood-prone service area
10 federal disaster declarations on record. After severe weather, watch for boil-water advisories.
See the risk factors ↓Minto's drinking water received a grade of A+ (97 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 604 residents using purchased ground water.
Lead levels were measured at 1.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. No violations are on record for this water system.
Minto ranks #1 out of 101 cities in North Dakota for water quality, placing it one of the best in the state. Minto purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition. As a small community water system, Minto may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. Minto has a clean compliance record with no violations on file, reflecting strong operational practices.
02What's in Minto's water
Every contaminant flagged in Minto, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.5 | 15 | ppb | Inorganic | Safe |
Cities ranked by 90th-percentile lead PF PFAS in North Dakota
Cities ranked by compounds detected Cu Copper in North Dakota
Cities ranked by 90th-percentile copper
03Minto's ten-year track record
Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. No violations are on record for this water system.
All ten of the last ten years were clean — no EPA violations recorded for Minto.
▼ Down 0.21 ppb since 1993. Latest reading: 1.5 ppb (2023) — 10% of the action level. Sampled at higher-risk homes (90th percentile).
04Where Minto's water comes from
Minto purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Purchased Groundwater
Water is bought from a regional wholesaler; quality starts at the supplier's intake and treatment.
Wholesale supplier
Primary treatment happens at the wholesaler; the local utility maintains disinfectant residual in its pipes.
1 system
1 water system, operated under local government ownership.
604 people
Residents served across Minto's service area.
Water quality depends on both the wholesaler's treatment standards and the condition of Minto's local distribution pipes and storage facilities. Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment. The system is operated by local government ownership and serves approximately 604 people through 1 water system.
| System name | PWSID | Population | Source |
|---|---|---|---|
| MINTO CITY OF | ND5000691 | 604 | Purchased Groundwater |
Water bodies near Minto
These water bodies shape the regional watershed and can indirectly affect groundwater quality.
05Pressure on Minto's watershed
Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.
Flood & storm history
10 federal disaster declarations on record for Walsh County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.
06How Minto compares
Scores for nearby North Dakota cities on one line, with the average marked.
dashed line = North Dakota average (82/100)
Minto scores 97/100 — above the North Dakota average of 82/100. It outscores 10 of 10 nearby cities. Full North Dakota rankings →
91.5 / 100ABismarck, ND
85.7 / 100BMinot, ND
83.2 / 100AGrand Forks, ND
91.3 / 100ADickinson, ND
93 / 100AWest Fargo, ND
92.2 / 100
Compare all cities in the county — grades, violations, and contaminant data side by side.→
07What to do at home
Steps matched to what testing actually found in Minto's water — not generic advice.
A basic carbon filter still helps
Minto's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.
Compare tested filters →Read your utility's annual report
Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.
How to read a CCR →Watch for Minto alerts
This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.
All water alerts →Frequently asked questions
Is Minto, ND tap water safe to drink?
Minto's water quality earned a grade of A+ (97/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #1 out of 101 cities tested in North Dakota.
What contaminants are in Minto's water?
Lead was measured at 1.5 ppb (90th percentile). No violations on record.
How is Minto's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Minto?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Minto's water come from?
Minto's water is sourced from Purchased ground water. The city has 1 water system serving approximately 604 residents.
Is Minto's groundwater at risk of contamination?
Minto uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. Current testing shows the groundwater meets EPA standards. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Minto's water compare to other cities?
Minto ranks #1 out of 101 cities in North Dakota (better than 99% of state cities) and #117 out of 15382 cities nationally (99th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Minto's small water system affect quality?
Minto's system serves approximately 604 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has maintained a clean compliance record.