Is Summerfield, MO Tap Water Safe to Drink?
Graded C, with 28 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
62.5/100
Summerfield, MO — Water Quality Report
Summerfield's drinking water received a grade of C (62.5 out of 100), indicating fair water quality. The city's 10 water systems serve approximately 2,618 residents using groundwater.
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 135 violations on record, including 7 health-based violations. 28 remain unresolved.
What to know about Summerfield's water
Summerfield ranks #438 out of 509 cities in Missouri for water quality, placing it among the lowest-rated in the state.
Summerfield 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, Summerfield may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 10 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Summerfield, MO water safe to drink?
Summerfield's drinking water has significant quality concerns based on EPA testing data. With a grade of C (62.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 10 water systems serve approximately 2,618 residents using groundwater (wells).
Recent water quality updates for Summerfield
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Summerfield's water quality assessment. Grade: C (62.5/100).
Contaminants: E. COLI.
Contaminants: Consumer Confidence Rule.
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Federal disaster declaration (FEMA DR-4844). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4834). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Summerfield's water supply.
Well within EPA limits.
Violation history
Summerfield's water system has 135 total violations on record, including 7 health-based violations. 28 remain unresolved. 10 violations were issued in the last 5 years.
Flood & environmental risk
Seminole County has experienced 10 federally declared disasters since 2022. 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 Lt Econlockhatchee R, Howell Creek, Soldier Creek, Gee Creek, St. Johns River.
Where does Summerfield's water come from?
Summerfield's drinking water comes from groundwater (wells), supplied by 10 water systems serving approximately 2,618 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Lt Econlockhatchee R (river), Howell Creek (river), Soldier Creek (river), Gee Creek (river), St. Johns River (river).
What Summerfield residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Summerfield'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.
Summerfield'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
Flood & disaster history
Seminole County has experienced 10 federally declared disasters since 2022. 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 Summerfield compares by contaminant
Explore where Summerfield ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Summerfield's water comes from
Summerfield'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 public/private ownership and serves approximately 2,618 people through 10 water systems.
Water bodies near Summerfield
Summerfield is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Summerfield
| System Name | PWSID | Population | Source |
|---|---|---|---|
| LITTLE LAKE WEIR SUBDIVISION | FL3420761 | 1,138 | GW |
| BELLEVIEW HILLS ESTATES | FL3424839 | 523 | GW |
| FAIRFAX HILLS SUBDIVISION | FL3424042 | 287 | GW |
| HILLTOP ESTATES MHP S/D | FL3424648 | 230 | GW |
| LOCH HARBOUR UTILITIES | FL3420767 | 110 | GW |
| MARION HILLS | FL3424001 | 102 | GW |
| PARADISE MHP | FL3424061 | 95 | GW |
| HIGH HOPES MOBILE HOME PARK | FL3424655 | 68 | GW |
| SUMMERFIELD PINES | FL3424649 | 40 | GW |
| SUNSET HARBOR WATER SYSTEM | FL3425111 | 25 | GW |
How Summerfield compares
Full Missouri rankings →Summerfield's score of 62.5/100 is on par with the average of 62/100 among major Missouri cities. It outscores 5 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Summerfield, MO
Wikipedia →Longwood is a city in Seminole County, Florida, United States. It is part of the Orlando–Kissimmee–Sanford, Florida Metropolitan Statistical Area. The population was 15,087 at the 2020 census.
Learn more about your water
Guides and resources related to Summerfield's water quality findings.
Explore water quality across Marion
Frequently asked questions
Is Summerfield, MO tap water safe to drink?
Summerfield's water quality earned a grade of C (62.5/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #438 out of 509 cities tested in Missouri.
What contaminants are in Summerfield's water?
Lead was measured at 2.4 ppb (90th percentile). 135 violations are on record.
How is Summerfield'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 Summerfield?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Summerfield's water come from?
Summerfield's water is sourced from Groundwater. The city has 10 water systems serving approximately 2,618 residents.
What health violations has Summerfield's water system had?
Summerfield has 7 health-based violations on record. The most recent violation was recorded in September 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 28 violations remain unresolved.
Is Summerfield's groundwater at risk of contamination?
Summerfield 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 135 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 Summerfield's water compare to other cities?
Summerfield ranks #438 out of 509 cities in Missouri (better than 14% of state cities) and #11871 out of 15744 cities nationally (25th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.