April 24, 2012 - 9:49 am - Posted in News

Des Moines, Iowa — The April 19 issue of the Water Summary Update shows that despite recent statewide rainfall, northwest Iowa is still an area of concern. The intense rainfall in some areas caused water to run off rather than infiltrate into the groundwater.

Shallow groundwater levels throughout Iowa benefited from the heavy rainfall that occurred between April 12 and April 15. Shallow groundwater levels recovered approximately 0.5 feet in the Floyd River watershed in northwest Iowa. Shallow groundwater levels are still near seasonal lows in the Rock River, Floyd River and Ocheyedan- Upper Little Sioux watersheds.

The Iowa Department of Natural Resources received reports that before April 12, 11 private wells in northwest Iowa were not providing water and the owners had to find alternative sources. This typically would be either constructing a new well or connecting to a rural water system. After April 12 only one well was not providing water.

With the much-needed rain, stream levels in the small streams are increasing slightly. Many of them had been dry or had isolated pools and are now flowing again. Most tile lines are still dry but a few have been observed with a small amount of flow. The National Weather Service was quoted in the Des Moines Register as saying northwest Iowa needs at least 6″ to 9″ above normal to get caught up.

Click here for the latest water summary update including graphs, charts, and statistics.

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