Is Mayersville, MS Tap Water Safe to Drink?
Graded C+, with 15 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
67.3/100
waterverge.com Mayersville, MS — Water Quality Report
Mayersville's drinking water received a grade of C+ (67.3 out of 100), indicating fair water quality. The city's 1 water system serves approximately 549 residents using groundwater.
Lead levels were measured at 0.5 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 257 violations on record, including 19 health-based violations. 15 remain unresolved.
What to know about Mayersville's water
Mayersville ranks #177 out of 320 cities in Mississippi for water quality, placing it below average in the state.
Mayersville 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, Mayersville may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 9 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Mayersville, MS water safe to drink?
Mayersville's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (67.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 549 residents using groundwater (wells).
Recent water quality updates for Mayersville
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Mayersville's water quality assessment. Grade: C+ (67.3/100).
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
Contaminants: Public Notice.
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4626). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3569). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Mayersville's water supply.
Well within EPA limits.
Violation history
Mayersville's water system has 257 total violations on record, including 19 health-based violations. 15 remain unresolved. 9 violations were issued in the last 5 years.
Flood & environmental risk
Issaquena County has experienced 10 federally declared disasters since 1975. 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 Mayersville's water come from?
Mayersville's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 549 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Mayersville residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Mayersville'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.
Mayersville'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 droughtIssaquena 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
Issaquena County has experienced 10 federally declared disasters since 1975. 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. | 0.5 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Mayersville compares by contaminant
Explore where Mayersville ranks among all Mississippi cities for specific contaminants.
Water source & infrastructure
Where Mayersville's water comes from
Mayersville'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 549 people through 1 water system.
Water systems serving Mayersville
| System Name | PWSID | Population | Source |
|---|---|---|---|
| TOWN OF MAYERSVILLE | MS0280001 | 549 | GW |
How Mayersville compares
Full Mississippi rankings →Mayersville's score of 67.3/100 is above the average of 54/100 among major Mississippi cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Mississippi rankings →About Mayersville, MS
Wikipedia →Mayersville is a town on the east bank of the Mississippi River, and the county seat for Issaquena County, Mississippi, United States. It is located in the Mississippi Delta region, known for cotton cultivation in the antebellum era. Once the trading center for the county, the town was superseded when railroads were built into the area. As of the 2020 census, Mayersville had a population of 433.
Learn more about your water
Guides and resources related to Mayersville's water quality findings.
Explore water quality across Issaquena
Frequently asked questions
Is Mayersville, MS tap water safe to drink?
Mayersville's water quality earned a grade of C+ (67.3/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #177 out of 320 cities tested in Mississippi.
What contaminants are in Mayersville's water?
Lead was measured at 0.5 ppb (90th percentile). 257 violations are on record.
How is Mayersville'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 Mayersville?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Mayersville's water come from?
Mayersville's water is sourced from Groundwater. The city has 1 water system serving approximately 549 residents.
What health violations has Mayersville's water system had?
Mayersville has 19 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. 15 violations remain unresolved.
Is Mayersville's groundwater at risk of contamination?
Mayersville 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 257 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 Mayersville's water compare to other cities?
Mayersville ranks #177 out of 320 cities in Mississippi (better than 45% of state cities) and #11260 out of 15744 cities nationally (29th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Mayersville's small water system affect quality?
Mayersville's system serves approximately 549 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 257 violations on record.