Is Brosley, 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 ↓
87.5/100
waterverge.com Brosley, MO — Water Quality Report
Brosley's drinking water received a grade of A- (87.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,600 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 7 violations on record, including 1 health-based violation. 2 remain unresolved.
What to know about Brosley's water
Brosley ranks #162 out of 509 cities in Missouri for water quality, placing it mid-range in the state.
Brosley 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, Brosley may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Brosley, MO water safe to drink?
Brosley's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (87.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,600 residents using groundwater (wells).
Recent water quality updates for Brosley
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Brosley's water quality assessment. Grade: A- (87.5/100).
Contaminants: Fluoride.
Contaminants: Fluoride.
Contaminants: Groundwater Rule.
Federal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3374). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Brosley's water supply.
Well within EPA limits.
Violation history
Brosley's water system has 7 total violations on record, including 1 health-based violation. 2 remain unresolved. 4 violations were issued in the last 5 years.
Flood & environmental risk
Butler County has experienced 4 federally declared disasters since 1982. 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 St. Francis River At Fisk, Black River At Poplar Bluff.
Where does Brosley's water come from?
Brosley's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,600 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include St. Francis River At Fisk (river), Black River At Poplar Bluff (river).
What Brosley 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.
Brosley'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 droughtButler 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
Butler County has experienced 4 federally declared disasters since 1982. 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Brosley compares by contaminant
Explore where Brosley ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Brosley's water comes from
Brosley'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 2,600 people through 1 water system.
Water bodies near Brosley
Brosley is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Brosley
| System Name | PWSID | Population | Source |
|---|---|---|---|
| BUTLER COUNTY PWSD 3 | MO4024072 | 2,600 | GW |
How Brosley compares
Full Missouri rankings →Brosley's score of 87.5/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →Learn more about your water
Guides and resources related to Brosley's water quality findings.
Explore water quality across Butler
Frequently asked questions
Is Brosley, MO tap water safe to drink?
Brosley's water quality earned a grade of A- (87.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #162 out of 509 cities tested in Missouri.
What contaminants are in Brosley's water?
Lead was measured at 0.0 ppb (90th percentile). 7 violations are on record.
How is Brosley'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 Brosley?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Brosley's water come from?
Brosley's water is sourced from Groundwater. The city has 1 water system serving approximately 2,600 residents.
What health violations has Brosley's water system had?
Brosley has 1 health-based violation on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Brosley's groundwater at risk of contamination?
Brosley 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 7 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 Brosley's water compare to other cities?
Brosley ranks #162 out of 509 cities in Missouri (better than 68% of state cities) and #4016 out of 15744 cities nationally (75th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Brosley's small water system affect quality?
Brosley's system serves approximately 2,600 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 7 violations on record.