Is Ocklawaha, MO Tap Water Safe to Drink?
Graded A-, with 8 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
85.3/100
waterverge.com Ocklawaha, MO — Water Quality Report
Ocklawaha's drinking water received a grade of A- (85.3 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,573 residents using groundwater.
Lead levels were measured at 0.0 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 40 violations on record, including 0 health-based violations. 8 remain unresolved.
What to know about Ocklawaha's water
Ocklawaha ranks #219 out of 509 cities in Missouri for water quality, placing it mid-range in the state.
Ocklawaha 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, Ocklawaha may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Ocklawaha, MO water safe to drink?
Ocklawaha's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,573 residents using groundwater (wells).
Recent water quality updates for Ocklawaha
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Ocklawaha's water quality assessment. Grade: A- (85.3/100).
Contaminants: E. COLI.
Contaminants: Lead and Copper Rule.
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
Key contaminant findings
Based on the most recent EPA sampling data for Ocklawaha's water supply.
Well within EPA limits.
Violation history
Ocklawaha's water system has 40 total violations on record, including 0 health-based violations. 8 remain unresolved. 5 violations were issued in the last 5 years.
Where does Ocklawaha's water come from?
Ocklawaha's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,573 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Creve Coeur Creek At Chesterfield (river), Creve Coeur Creek Near Creve Coeur (river), Fee Fee Creek Near Bridgeton (river), River Des Peres Near University City (river), River Des Peres Tributary At Pagedale (river).
What Ocklawaha residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Ocklawaha'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
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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Ocklawaha compares by contaminant
Explore where Ocklawaha ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Ocklawaha's water comes from
Ocklawaha'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 1,573 people through 2 water systems.
Water bodies near Ocklawaha
Ocklawaha is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Ocklawaha
| System Name | PWSID | Population | Source |
|---|---|---|---|
| OCKLAWAHA WATER WORKS (2 WTPS) | FL3420939 | 965 | GW |
| WINDING WATERS | FL3424691 | 608 | GW |
How Ocklawaha compares
Full Missouri rankings →Ocklawaha's score of 85.3/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Ocklawaha, MO
Wikipedia →Des Peres is a city in west St. Louis County, Missouri, United States. The population was 9,193 at the 2020 census.
Learn more about your water
Guides and resources related to Ocklawaha's water quality findings.
Explore water quality across Marion
Frequently asked questions
Is Ocklawaha, MO tap water safe to drink?
Ocklawaha's water quality earned a grade of A- (85.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #219 out of 509 cities tested in Missouri.
What contaminants are in Ocklawaha's water?
Lead was measured at 0.0 ppb (90th percentile). 40 violations are on record.
How is Ocklawaha'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 Ocklawaha?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Ocklawaha's water come from?
Ocklawaha's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,573 residents.
Is Ocklawaha's groundwater at risk of contamination?
Ocklawaha 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 40 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 Ocklawaha's water compare to other cities?
Ocklawaha ranks #219 out of 509 cities in Missouri (better than 57% of state cities) and #5397 out of 15744 cities nationally (66th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.