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Alabama Water Quality
470
Utilities in database
6.3M
Residents served
28%
On private wells
2
Key contaminants tracked
Drinking Water in Alabama
Alabama has 470 community water systems serving approximately 6.3 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, nitrates. 28% of Alabama residents rely on private wells. ADEM holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Alabama
26–50 of 470Phenix City Utilities
AL0001142 · 42,267 served
Alabaster Water Board
AL0001148 · 41,061 served
City of Gulf Shores, the Ub of the
AL0000038 · 40,947 served
City of Northport Water Works
AL0001307 · 40,551 served
Shelby County Commission-water Services
AL0001671 · 40,101 served
Central Elmore Water & Sewer Authority
AL0000547 · 39,798 served
City of Arab, Water Works Board of the
AL0000934 · 39,795 served
Mobile County Water & Fire Pro Authority
AL0001002 · 39,573 served
South Alabama Utilities Water System
AL0000967 · 39,249 served
Pelham Water Works
AL0001163 · 38,703 served
Warrior River Water Authority
AL0000763 · 38,700 served
City of Cullman
AL0001786 · 36,312 served
City of Trussville, Ub of the
AL0000761 · 36,300 served
Section & Dutton, Water Works Bd. of
AL0000728 · 35,259 served
City of Daphne, Utilities Board of the
AL0000029 · 33,372 served
Calhoun County Water Authority
AL0000131 · 32,796 served
City of Alexander City
AL0001265 · 32,556 served
Dekalb-jackson Water Supply District
AL0001796 · 32,421 served
Smiths Water & Sewer Authority
AL0000820 · 31,695 served
Oxford Water Works & Sewer Board
AL0000162 · 31,239 served
West Morgan-east Lawrence W&s Authority
AL0001092 · 30,000 served
City of Albertville, Municipal Ub of the
AL0000933 · 29,367 served
Prichard Water Works Board
AL0001015 · 28,803 served
North Baldwin Utilities
AL0000023 · 28,713 served
Jasper Water Works & Sewer Board
AL0001336 · 28,638 served
Key Contaminant Concerns in Alabama
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.
Alabama Water FAQs
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Data source: Utility data from EPA SDWIS. 470 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22