Davenport, Iowa Water Outage Today

Davenport water system at a glance

Federal records name Iowa-American Wtr Co-Davenport as the public water system for Davenport, with about 147,720 people on its mains. Customers know it as Iowa American Water; the name on your bill is the one to call.

Source water and treatment in Davenport

Tap water in Davenport starts as surface water. Iowa-American Wtr Co-Davenport takes it from the Mississippi River and runs it through treatment before it reaches the mains. Treatment points named in EPA's facility list include Plant #1. After treatment the water is held in 12 storage tanks and reservoirs and pushed uphill by 11 pump facilities; that storage is the buffer that keeps taps running for a few hours after a pump or main fails.

The outage angle. Because the water is drawn from open surface sources, it has to be filtered and disinfected continuously. A plant problem therefore hits everyone at once, unlike a main break, which only dries up the blocks on either side of the damaged pipe.

Main breaks and shutoffs in Davenport: the usual causes

Water outages are local, so the likely cause depends on weather, pipe age and the grid. For Davenport, these stand out.

• Freezing weather. Davenport sees about 132 days a year with a low at or below 32°F, and 50 days at or below 20°F. The coldest morning in the 2015 through 2025 record came on January 31, 2019. The longest stretch with highs that never rose above freezing ran 16 days, ending January 7, 2018. Frozen service lines and meters cause single-address outages, while ground frost and thaw cycles crack older mains and produce the street-wide breaks.
• Older neighborhoods and pipe. 54.6% of occupied homes in Davenport were built before 1970, against 35.5% nationally. Streets of that age tend to sit on cast iron and early steel mains that are near or past their design life, which is where most breaks start.
• Storm-driven power loss. Thunderstorm wind, hail and tornado reports in Scott County number 344 since 2015. Pump stations and treatment plants that depend on MidAmerican Energy run on the electric grid, so a storm that downs power lines can lower water pressure even when no pipe is damaged.
• Flooding and heavy rain. NOAA logged 37 flood, flash flood and heavy rain reports in Scott County from 2015 through 2026, and 5 days a year bring an inch of rain or more. Floodwater can undercut pipe crossings, swamp pump stations and overload treatment plants, and a notice to boil water often follows when it enters the system.
• Digging and utility work. Street projects, fiber installation and excavation near buried pipe regularly cut mains in Davenport with no warning, usually on a day with perfectly ordinary weather.
• Planned shutoffs and a problem at one address. Valve replacements and new connections are announced ahead, often with door hangers. If neighbors have water, check your own shutoff valve, meter and pressure regulator before calling.

Freeze, heat and rain: the Davenport weather record

Main break season in Davenport runs from late fall into early spring, with the coldest stretch around December through February.

The figures are reanalysis estimates for the center of Davenport, not readings from a single weather station, so treat them as a guide to how often each kind of weather occurs rather than as official records.

Boil water advisories and the federal violation record for Davenport

EPA lists no health-based violations for Iowa-American Wtr Co-Davenport since 2015.

Boil water notices in Davenport are precautions, not findings. When pressure drops, Iowa American Water tells affected customers to boil water until two rounds of lab tests are clean, a process that normally takes 24 to 48 hours after service is restored, under oversight from the Iowa Department of Natural Resources.

What the lead tests and housing age say about Davenport

The most recent 90th-percentile lead result filed for Iowa-American Wtr Co-Davenport is 1 ppb (2024). The federal action level is 15 ppb, so that result is comfortably below it.

The age of the housing matters more than the utility's test average: 54.6% of occupied homes in Davenport predate 1970 and 1986 was the year lead pipe and solder were banned. Flush the cold tap after an outage and ask Iowa American Water whether your service line is on its lead inventory.

Restoration times for water outages in Davenport

Most repairs of an ordinary main break in Davenport take half a day once the crew is on site. Bigger mains, deep bury and busy roads stretch that to a day or more.

Iowa American Water will post an estimated restoration time for a break that affects many customers; ask for the repair crew's estimate when you call.

Preparing for a long water outage in Davenport

With about 2.3 people in the typical Davenport home, FEMA's one-gallon-per-person-per-day rule means 7 gallons covers three days and 33 gallons covers two weeks.

• Do not forget the water heater: the tank holds roughly 30 to 50 gallons you can drink after it is switched off and allowed to cool.
• Fill the bathtub and a few large pots as soon as you hear a break is likely; that water is for flushing and washing, not drinking.

How Davenport compares with nearby water systems

Water outage pages for nearby cities

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