MQP Lake Wickaboag
Engineering Project by Miri Becker & Kevin Gray
BMP Design at Shea Road
Vegetative Filter Strip
- 50% TSS removal rate with pretreatment
- Not entirely sure what the actual TSS removal is without pretreatment
- However, we believe it is the best form of conveyance and pretreatment into the Bioretention Area.
- Equations for sizing were from the Georgia Stormwater Management Manual, but they provide inconsistency with regulations in the MA Stormwater Handbook.
Catch Basin & Grassed Channel
- Together receive the 44% TSS removal rate
- Catch Basin is easier to clean as opposed to the channel or filter strip
- Might be too close to seasonal high water table to allow for Catch Basin construction
- Looked into the Stormtech chambers due previous implementation elsewhere
- Primary issue is the regulation for infiltration systems requiring a 150 ft downhill buffer and a 100 ft uphill buffer
- Secondary issue is the drainage area, which has a 5 acre maximum