LANSING, Mich. (AP) -

State officials say billions of gallons of raw and partially treated sewage was dumped in Detroit area rivers and streams after flooding from heavy rains earlier this month.

Department of Environmental Quality spokeswoman Laura Verona tells The Detroit News for a story (http://bit.ly/1qycb1a ) Friday that about 46 percent of the nearly 10 billion gallons of sewage released Aug. 11 by water treatment facilities was raw, diluted or partially treated sewage.

The state agency has put together a preliminary report on the sewage release.

Combined sewers and retention basins in some communities in Wayne, Oakland and Macomb counties overflowed due to the Aug. 11 storm.

Some areas received more than 6 inches of rain. Water from the storm left parts of freeways flooded and damaged thousands of homes.

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Information from: The Detroit News, http://detnews.com/