Alabama drinking water record

Health-based drinking water violations in Alabama, by year
15: 10101516: 10101617: 991718: 15151819: 23231920: 27272021: 17172122: 19192223: 20202324: 49492425: 222225

Busiest year: 2024 (49 violations). Counted by the year the violation period began. Source: EPA SDWIS.

  • Community water systems: 500 active systems serve about 6,314,046 people. 201 of them (40%) serve 3,300 people or fewer; 273 draw mainly on groundwater and 221 on surface water.
  • Health-based violations since 2015: 227, at 87 systems (17% of all systems). That share is 8th of 50 states (1 = lowest).
  • Most common problems: contaminant averages over the limit (181); contaminant readings over the limit (7); coliform treatment technique (5). Source: EPA SDWIS
  • Largest system: Central Alabama Water System, about 585,000 people, with 0 health-based violations since 2015. Source: EPA SDWIS
  • Housing age: the median Alabama home was built in 1986 (US 1980). Source: US Census Bureau, ACS 2020–2024 (table B25035)
  • Storm damage to water service: NOAA storm narratives mention water mains, boil water notices or lost water service in 9 episodes in Alabama since 2015. Source: NOAA Storm Events Database
  • September 14, 2024, Lawrence (heavy rain): “Moulton Water Plant, the official Coop site in the area, measured 13.9 inches of rain.” Source: NOAA Storm Events Database
  • March 19, 2024, Colbert (frost/freeze): “The low temperature was 27 at the Northwest Alabama Regional Airport and Water Plant COOP site in Muscle Shoals.” Source: NOAA Storm Events Database
The largest water systems in Alabama
SystemPeople servedMain sourceHealth violations since 2015
Central Alabama Water System585,000Surface water0
Huntsville Utilities Water Dept.310,107Surface water0
Mobile, Bd. of W&S Comm. of The City Of279,000Surface water1
Montgomery Ww&Ssb, City Of276,000Surface water0
Tuscaloosa Water & Sewer166,524Surface water2
Madison County Water Department119,100Bought surface water0

Source: EPA SDWIS.

Share of water systems with a health-based violation since 2015: Alabama and nearby states
  • Georgia9.9%
  • Alabama17.4%
  • Tennessee22.9%
  • Florida23.9%
  • Mississippi29.7%

Alabama is 2nd of 5 (1 = lowest share). Source: EPA SDWIS.

Checked September 2026.

Who to call in Alabama, city by city

4 Alabama cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.

Frequently asked questions

Is there a water service outage in Alabama right now?

Possibly: 1 report from Alabama on this site in the last 24 hours. Open your city to see where.

How many public water systems are in Alabama?

EPA records list 500 active community water systems in Alabama, serving about 6,314,046 people. 40% serve 3,300 people or fewer.

How common are drinking water violations in Alabama?

Since 2015, 87 of 500 community water systems in Alabama (17%) have had at least one health-based violation, 227 in total.

What is the largest water system in Alabama?

Central Alabama Water System, which EPA records list as serving about 585,000 people.

Report counts are user-submitted; other figures name their official source. How our data works

Cities in Alabama with Water Service Outages Information

Birmingham

1 report in the last 24 hours · pop. 212,237
Birmingham Water Works

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Huntsville

no reports in the last 24 hours · pop. 215,006
Huntsville Utilities

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Mobile

no reports in the last 24 hours · pop. 188,720
Mobile Area Water & Sewer System (MAWSS)

View Water Service Outages

Montgomery

no reports in the last 24 hours · pop. 200,603
Montgomery Water Works & Sanitary Sewer Board

View Water Service Outages