Is Gideon, MO Tap Water Safe to Drink?
Graded B+, with 16 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
82.2/100
waterverge.com Gideon, MO — Water Quality Report
Gideon's drinking water received a grade of B+ (82.2 out of 100), indicating good water quality. The city's 2 water systems serve approximately 2,564 residents using groundwater.
Lead levels were measured at 5.9 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 60 violations on record, including 10 health-based violations. 16 remain unresolved.
What to know about Gideon's water
Gideon ranks #288 out of 509 cities in Missouri for water quality, placing it below average in the state.
Gideon 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.
While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.
As a small community water system, Gideon may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Gideon, MO water safe to drink?
Gideon's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 2,564 residents using groundwater (wells).
Recent water quality updates for Gideon
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Gideon's water quality assessment. Grade: B+ (82.2/100).
Contaminants: Lead and Copper Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4435). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Gideon's water supply.
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.
Violation history
Gideon's water system has 60 total violations on record, including 10 health-based violations. 16 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
New Madrid County has experienced 6 federally declared disasters since 1993. 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 Gideon's water come from?
Gideon's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 2,564 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Gideon residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Gideon's water.
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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Gideon'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
Drought conditions
D3 — extreme droughtNew Madrid County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
New Madrid County has experienced 6 federally declared disasters since 1993. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Gideon's water supply, we recommend the following filter types.
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. | 5.9 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Gideon compares by contaminant
Explore where Gideon ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Gideon's water comes from
Gideon'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 2,564 people through 2 water systems.
Water systems serving Gideon
| System Name | PWSID | Population | Source |
|---|---|---|---|
| NEW MADRID COUNTY PWSD 5 | MO4024419 | 1,800 | GW |
| GIDEON PWS | MO4010304 | 764 | GW |
How Gideon compares
Full Missouri rankings →Gideon's score of 82.2/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Gideon, MO
Learn more about your water
Guides and resources related to Gideon's water quality findings.
Explore water quality across New Madrid
Frequently asked questions
Is Gideon, MO tap water safe to drink?
Gideon's water quality earned a grade of B+ (82.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #288 out of 509 cities tested in Missouri.
What contaminants are in Gideon's water?
Lead was measured at 5.9 ppb (90th percentile). 60 violations are on record.
How is Gideon'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 Gideon?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Gideon's water come from?
Gideon's water is sourced from Groundwater. The city has 2 water systems serving approximately 2,564 residents.
What health violations has Gideon's water system had?
Gideon has 10 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 16 violations remain unresolved.
Is Gideon's groundwater at risk of contamination?
Gideon 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 60 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 Gideon's water compare to other cities?
Gideon ranks #288 out of 509 cities in Missouri (better than 43% of state cities) and #7122 out of 15744 cities nationally (55th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.