The Village Green Bioswale was constructed in 2017 as a part of the Surfrider Foundation's Ocean Friendly Gardens program with the help and support of local community partners and volunteers.
Before the bioswale was planted in 2017, the site often had a large puddle, or even a small pond of standing water. When it rained, road runoff traveled down across the green and towards Town Pond, washing pollution down into that waterbody. The Village Green Bioswale now intercepts this flow of polluted water, and slows it down with a ribbon of deeply rooted native plants. The gently sloped sides of the bioswale guide water toward the plant roots, which help filter out pollution and absorb more stormwater into the ground so less runoff flows towards Town Pond.
Surfrider pulls weekly water samples from the Village Green Bioswale, just before the culvert on the South end of the garden if there is any standing water to collect.
We used to collect samples at this site approximately a half dozen times per year before the bioswale was planted, and during the first year it was planted. Now we almost never find standing water onsite.