Is Montgomery City, MO Tap Water Safe to Drink?
Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
93.9/100
waterverge.com Montgomery City, MO — Water Quality Report
Montgomery City's drinking water received a grade of A (93.9 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,811 residents using groundwater.
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.
The system has 14 violations on record, including 1 health-based violation. 2 remain unresolved.
What to know about Montgomery City's water
Montgomery City ranks #20 out of 509 cities in Missouri for water quality, placing it one of the best in the state.
Montgomery City relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Montgomery City may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Montgomery City, MO water safe to drink?
Montgomery City's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (93.9/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,811 residents using groundwater (wells).
Recent water quality updates for Montgomery City
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Montgomery City's water quality assessment. Grade: A (93.9/100).
Federal disaster declaration (FEMA DR-4665). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3374). Flood event — may have impacted local water infrastructure.
Contaminants: Radium-226, Radium-228.
Contaminants: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Contaminants: Coliform (TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Montgomery City's water supply.
Well within EPA limits.
Violation history
Montgomery City's water system has 14 total violations on record, including 1 health-based violation. 2 remain unresolved.
Flood & environmental risk
Montgomery County has experienced 7 federally declared disasters since 1973. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Montgomery City's water come from?
Montgomery City's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,811 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Montgomery City residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Montgomery City's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Montgomery City
Industrial polluters nearby
Reported releases to surface water by facilities near Montgomery City, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
CHRISTY MINERALS LLC HIGH HILL, MO63350 | — | — | 9.0 mi |
CARGILL FEED & NUTRITION MONTGOMERY CITY MONTGOMERY CITY, MO63361 | — | — | 0.6 mi |
PURINA ANIMAL NUTRITION LLC - MONTGOMERY CITY MONTGOMERY CITY, MO63361 | — | — | 0.9 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Montgomery County has experienced 7 federally declared disasters since 1973. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
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 |
Lead level trend (90th percentile)
See how Montgomery City compares by contaminant
Explore where Montgomery City ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Montgomery City's water comes from
Montgomery City's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 2,811 people through 1 water system.
Water systems serving Montgomery City
| System Name | PWSID | Population | Source |
|---|---|---|---|
| MONTGOMERY CITY PWS | MO6010539 | 2,811 | GW |
How Montgomery City compares
Full Missouri rankings →Montgomery City's score of 93.9/100 is above the average of 62/100 among major Missouri cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Montgomery City, MO
Wikipedia →Montgomery City is a city in and the county seat of Montgomery County, Missouri, United States. The population was 2,811 at the 2020 census.
Learn more about your water
Guides and resources related to Montgomery City's water quality findings.
Explore water quality across Montgomery
Frequently asked questions
Is Montgomery City, MO tap water safe to drink?
Montgomery City's water quality earned a grade of A (93.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #20 out of 509 cities tested in Missouri.
What contaminants are in Montgomery City's water?
Lead was measured at 1.5 ppb (90th percentile). 14 violations are on record.
How is Montgomery City'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 Montgomery City?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Montgomery City's water come from?
Montgomery City's water is sourced from Groundwater. The city has 1 water system serving approximately 2,811 residents.
What health violations has Montgomery City's water system had?
Montgomery City has 1 health-based violation on record. The most recent violation was recorded in January 2014. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Montgomery City's groundwater at risk of contamination?
Montgomery City uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 14 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Montgomery City's water compare to other cities?
Montgomery City ranks #20 out of 509 cities in Missouri (better than 96% of state cities) and #675 out of 15744 cities nationally (96th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Montgomery City's small water system affect quality?
Montgomery City's system serves approximately 2,811 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 14 violations on record.