In October 2011, a 750 square foot raingarden was installed at the St. Mary’s of the Lake Church in White Bear Lake to capture stormwater from the property’s structural and paved surfaces.
Project funding was helped in part by a Clean Water Fund grant with the help of the Ramsey Conservation District.
The raingarden was found in a study used to identify optimal best management projects that would reduce stormwater in the Lambert Creek subwatershed.
The Project removed existing and compacted soils to install a 12” layer of amended soils in the infiltration basin, surrounded with a retaining wall. The inlet features an 8 cubic foot pretreatment chamber to collect sediment and objects from entering the basin, simplifying maintenance.
The basin has proved to effectively capture and infiltrate stormwater from St. Mary’s of the Lake Church, and the native vegetation has grown in well and continues to flourish.