The alleged violations took place at the first phase of Lafayette Park Town Homes. The company obtained a general permit for management of storm water runoff at construction projects and as part of stormwater management activities, the company built a basin at the site to collect runoff and settle out sediment.

During the summer of 2002 the basin filled up with runoff and overflowed, eroding a hillside below the basin site and sending large volumes of sediment onto parts of adjacent Seidl Lake Park and into a nearby wetland and Seidl Lake, which is connected to the wetland.

The MPCA's enforcement agreement with Centex addresses failure to plan for, manage and mitigate stormwater runoff as required by state law, primarily including failure to construct adequate sedimentation basins, conduct proper maintenance of preventive systems and report and respond to violations in a timely manner. All violations and environmental impacts identified in the agreement have been corrected by the company, according to the MPCA.