State Hub
Mississippi Water Quality
794
Utilities in database
3.1M
Residents served
30%
On private wells
3
Key contaminants tracked
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.
Utilities in Mississippi
676–700 of 794Village of Gattman
MS0480005 · 790 served
Mississippi Water Company
MS0040012 · 785 served
Prvwsd-highway 43
MS0610035 · 784 served
Town of Marietta
MS0590010 · 781 served
City of Louisville - Northeast
MS0800005 · 780 served
Town of Bude
MS0190001 · 780 served
Ingram Water Association
MS0590008 · 776 served
Buena Vista Lakes
MS0170020 · 768 served
Sunny Oaks Water Association
MS0550008 · 766 served
Ebenezer Rural Water Assn
MS0260007 · 765 served
Love Joy Water Assn
MS0540003 · 763 served
Liberty Hill Water Association
MS0540012 · 763 served
Town of Shubuta
MS0120008 · 762 served
Hurricane Creek Water Assn
MS0360009 · 760 served
Hays Creek W/a - Alva
MS0490020 · 750 served
Hays Creek W/a-minerva #2
MS0490023 · 750 served
Oakland Water Works
MS0010007 · 750 served
Ellisville State School #1
MS0340002 · 750 served
Town of Maben
MS0530010 · 750 served
Pleasant Grove Water Assn, Inc
MS0540016 · 747 served
White Oak Water Association
MS0650013 · 747 served
Town of Scooba
MS0350004 · 744 served
Midway W/a #3
MS0820028 · 739 served
Union Water Association
MS0610030 · 739 served
Water Association of Moon Lake
MS0140047 · 739 served
Key Contaminant Concerns in Mississippi
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.
Nitrates
Nitrate (NO₃⁻) is a nitrogen-containing compound that forms naturally through the decomposition of organic matter. At elevated concentrations — almost always from human activity — nitrate interferes with the blood's ability to carry oxygen. The United States produces over 23 million tons of nitrogen fertilizer annually, making agricultural runoff the dominant source of nitrate contamination.
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.
Mississippi Water FAQs
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Data source: Utility data from EPA SDWIS. 794 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22