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
726–750 of 794Glen Allan Utility District
MS0760003 · 649 served
Poplar Springs W/a #1
MS0070016 · 645 served
Coahoma Utility Dist #2
MS0140053 · 645 served
Blackjack Development Assn
MS0050016 · 644 served
New Light Water Association
MS0530039 · 642 served
Town of Bolton
MS0250001 · 640 served
Fcwa-hamburg
MS0190015 · 636 served
Town of Sandersville
MS0340016 · 636 served
Poplar Creek Water Association
MS0490007 · 634 served
Poplar Springs W/a #2
MS0070024 · 627 served
South Newton Rural W/a #4
MS0510022 · 618 served
Pineville Water Association #2
MS0650018 · 615 served
Spout Springs W/a
MS0700009 · 607 served
Janice W/a #1
MS0560007 · 602 served
High Hill Water Association
MS0620004 · 600 served
Romola Water Association
MS0110006 · 600 served
Ms Gulf Coast Community College
MS0660003 · 600 served
Lake Lorman Utl District
MS0450017 · 599 served
Mt Comfort W/a-sarepta
MS0070017 · 599 served
Town of Cary
MS0630002 · 591 served
Cold Springs Water Association
MS0160001 · 589 served
Choctaw Water Assn
MS0100002 · 583 served
Sanders Water Association,inc
MS0360064 · 581 served
Big Field Water Association
MS0600002 · 580 served
Town of Oakland
MS0810007 · 579 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