Concrete wastewater is extremely alkaline. It can cause fish kills upon reaching lakes or streams.
While concrete waste is tightly regulated in some countries, it receives little attention in Wisconsin. Nevertheless, discharging concrete wastewater into the storm sewers is illegal in Madison.
On June 3, white stains from concrete work by Raymond P. Cattell, Inc., were observed running down the gutter towards a sewer opening near Frances St. The stormsewer receiving the concrete waste probably empties to Monona Bay, a popular fishing location.
What is black ice--and why is it slippery?
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- Black ice is relatively smooth, hard, and clear.
- Packed snow eventually turns to black ice, especially when it rains,
or when there's a th...