ANNAPOLIS | When Gerald Winegrad was a child, he played baseball on grassy fields behind St. Mary’s Catholic Church and School in downtown Annapolis.
Over the years, as the church congregation and school enrollment grew, those grounds were paved over and turned into parking lots. Those lots now serve as a highway for rainwater, sending it rushing into nearby Spa Creek, where it deposits chemicals, nutrients and sediment and fouls the water.
Now there has been effort to undo some of that damage. With a grant from the state government, a partnership installed nine rain gardens to absorb and treat the storm water.
“This is hopefully just the beginning,” said Anne Guillette of Low Impact Design Studio in Pasadena, who drew up the plans for the rain gardens.
Curbs were cut away to direct water into the scooped-out areas, which were filled with water-loving plants. The rain gardens allow the storm water to percolate gradually into the groundwater, just as it did before the area was paved over.
“They will capture the runoff,” said Mr. Winegrad, a former state senator who heads the St. Mary’s environmental stewardship committee.
The work was largely being paid for with a $104,000 grant from the state’s Chesapeake Bay 2010 Trust Fund. Initially called the “green fund,” the fund is a pot of money for on-the-ground pollution-control projects. The church also kicked in at least $5,000, besides volunteer labor. Students at the school water and maintain the plants.
The parking lot at St. Mary’s was identified as a potential project during a study of the creek watershed that was commissioned by the Spa Creek Conservancy. It’s large and therefore sends a significant amount of pollution to the creek.
Volunteers with the conservancy worked on the project with the St. Mary’s environment committee, the Redemptorists who own the land and the folks who operate the historic Charles Carroll House next door, where one of the rain gardens will be located.
There also were additional layers of approval because of the site’s historic nature. Another complicating factor was that the church needed to make sure no parking spaces would be lost in the project.
Shepherding the project through all the approvals was Spa Creek Conservancy volunteer Mel Wilkins. He said that in urban cities and towns such as Annapolis, doing these kind of “retrofits” is the best way to help the environment.
The project at St. Mary’s is one of several retrofits coordinated by Spa Creek Conservancy volunteers. Heritage Baptist Church on Forest Driver already has rain gardens, and projects are in the works with the Rockfish restaurant in Eastport and the St. Anne’s Parish House near St. Mary’s.