Is Green City, MO Tap Water Safe to Drink?
Graded A-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
87/100
waterverge.com Green City, MO — Water Quality Report
Green City's drinking water received a grade of A- (87 out of 100), indicating good water quality. The city's 1 water system serves approximately 657 residents using purchased surface water.
Lead levels were measured at 2.4 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 31 violations on record, including 6 health-based violations. 3 remain unresolved.
What to know about Green City's water
Green City ranks #179 out of 509 cities in Missouri for water quality, placing it mid-range in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Green City may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Green City, MO water safe to drink?
Green City's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (87/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 657 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Green City
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Green City's water quality assessment. Grade: A- (87/100).
Contaminants: Lead and Copper Rule.
Contaminants: Consumer Confidence Rule.
1 health-based. Contaminants: TTHM.
Federal disaster declaration (FEMA DR-3232). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-995). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Green City's water supply.
Well within EPA limits.
Violation history
Green City's water system has 31 total violations on record, including 6 health-based violations. 3 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
Sullivan County has experienced 2 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. Local water sources include East Locust Creek Near Boynton.
Where does Green City's water come from?
Green City's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 657 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include East Locust Creek Near Boynton (river).
What Green City residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Green City'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.
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 Green City
Industrial polluters nearby
Reported releases to surface water by facilities near Green City, ranked by pounds discharged annually.
Total reported releases to surface water: 341,370 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
SMITHFIELD FRESH MEATS CORP - MILAN MO MILAN, MO63556 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 341,370 | 5.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Sullivan County has experienced 2 federally declared disasters since 1993. 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. | 2.4 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Green City compares by contaminant
Explore where Green City ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Green City's water comes from
Green City's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 657 people through 1 water system.
Water bodies near Green City
Green City is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Green City
| System Name | PWSID | Population | Source |
|---|---|---|---|
| GREEN CITY PWS | MO2010329 | 657 | SWP |
How Green City compares
Full Missouri rankings →Green City's score of 87/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Green City, MO
Wikipedia →Green City is a city in northeast Sullivan County, Missouri, United States. As of the 2020 census, Green City had a population of 602.
Learn more about your water
Guides and resources related to Green City's water quality findings.
Explore water quality across Sullivan
Frequently asked questions
Is Green City, MO tap water safe to drink?
Green City's water quality earned a grade of A- (87/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #179 out of 509 cities tested in Missouri.
What contaminants are in Green City's water?
Lead was measured at 2.4 ppb (90th percentile). 31 violations are on record.
How is Green 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 Green City?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Green City's water come from?
Green City's water is sourced from Purchased surface water. The city has 1 water system serving approximately 657 residents.
What health violations has Green City's water system had?
Green City has 6 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
How does Green City's water compare to other cities?
Green City ranks #179 out of 509 cities in Missouri (better than 65% of state cities) and #4355 out of 15744 cities nationally (72th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Green City's small water system affect quality?
Green City's system serves approximately 657 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 31 violations on record.