Speedway releases concrete slurry to storm sewer

.          .          .

On or before April 24, Speedway Sand and Gravel was using a saw to cut concrete pavement on Highland Avenue.

Water is required to cool the saw--and the water, plus concrete dust, creates an alkaline slurry. The slurry is so alkaline that it can cause a fish kill, upon reaching the lake.

Madison General Ordinances prohibit releasing concrete wastewater to the storm sewer.

The dried slurry is supposed to be cleaned up by the end of the day.

The work was probably done on Friday, and the photo is from Sunday, with rain in between.

Here, you can see white slurry getting onto the stormwater opening.

Speedway has a long history of abuse.   The banner photo above was a massive sediment spill into Lake Wingra at Speedway's site on Edgewood Av, during the summer of 2010.  Photo by Jamie Saul.

Except for the concrete slurry above, this Speedway site at the corner of Highland Av and Old University Av shows improvements over 2010.

More photos of the site.