State Hub
Mississippi Water Quality
794
Utilities in database
3.1M
Residents served
1
With open violations
233
PFAS monitored
Quick Answer
Mississippi public drinking water is served by 794 EPA-tracked water systems, providing service to approximately 3.1 million residents through public utilities. 1 of those systems currently have open health-based violations on record in the EPA federal database. 233 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 30% of MS residents use private wells, which fall outside federal utility compliance monitoring.
1 Mississippi water system has an open health-based violation recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Mississippi
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
Drinking Water in Mississippi
Mississippi has 794 community water systems serving approximately 3.1 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead, nitrates. 30% of Mississippi residents rely on private wells. MDEQ holds primary enforcement authority under the Safe Drinking Water Act.
Highest Risk Utilities
Mississippi systems with open health-based violations in EPA records.
Safest Large Utilities
Mississippi systems with no open health violations serving 10,000+ residents.
Utilities in Mississippi
1–25 of 794City of Jackson
MS0250008 · 189,673 served
City of Gulfport
MS0240003 · 75,056 served
City of Southaven
MS0170018 · 56,000 served
City of Olive Branch
MS0170015 · 54,025 served
City of Hattiesburg
MS0180008 · 43,449 served
City of Tupelo
MS0410015 · 37,000 served
City of Meridian
MS0380005 · 34,466 served
City of Starkville
MS0530020 · 32,027 served
City of Brandon
MS0610003 · 31,852 served
City of Flowood
MS0610075 · 31,574 served
City of Greenville
MS0760004 · 29,602 served
City of Vicksburg
MS0750010 · 29,238 served
West Jackson Co Utility Dist
MS0300156 · 28,544 served
City of Oxford
MS0360011 · 28,500 served
City of Jackson-maddox Rd.
MS0250012 · 28,098 served
City of Pearl
MS0610017 · 27,115 served
University of Mississippi
MS0360015 · 26,874 served
Bear Creek W/a-west
MS0450021 · 26,677 served
City of Ocean Springs
MS0300005 · 26,168 served
City of Clinton
MS0250003 · 25,000 served
City of Ridgeland
MS0450013 · 24,340 served
Columbus Light & Water
MS0440003 · 23,616 served
City of Biloxi
MS0240001 · 23,310 served
City of Pascagoula
MS0300006 · 22,686 served
City of Gautier
MS0300004 · 22,253 served
Key Contaminant Concerns in Mississippi
These contaminants appear most frequently in Mississippi utility records or pose elevated risk in this region based on EPA data.
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing. Critically, a utility's water quality report can show zero detected lead at the treatment plant while your specific tap still delivers elevated lead — because the contamination happens inside the distribution system and your home's plumbing, not at the source.
EPA limit: 15 ppb (action level)
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always caused by human activity — nitrate is converted in the digestive system to nitrite, which then reacts with hemoglobin to form methemoglobin, a form of hemoglobin that cannot carry oxygen. In the body, nitrite also reacts with amines in food to form N-nitroso compounds (nitrosamines) — known carcinogens classified by the IARC as Group 2A (probable human carcinogens). The United States applies over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination in U.S. groundwater.
EPA limit: 10 mg/L
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
City Water Reports in Mississippi
Tap water quality pages for Mississippi cities — violations, PFAS records, utility profiles, and official source links.
Independent Water Testing
Find a certified lab in Mississippi
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Mississippi labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Mississippi
City of Jackson
Violation history, PFAS records, and official source links
City of Gulfport
Violation history, PFAS records, and official source links
City of Southaven
Violation history, PFAS records, and official source links
PFAS monitoring records — Mississippi
233 water systems in Mississippi with EPA UCMR 5 records
Active drinking water violations
1 open health-based violation on record — view official EPA SDWIS data
Lead in Mississippi drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Mississippi drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Mississippi
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Mississippi Drinking Water
Does Mississippi drinking water have PFAS?
233 Mississippi water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Mississippi water utilities have open violations?
1 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Mississippi?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from MS tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Mississippi PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Mississippi water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Mississippi Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-22