City of Mankato, Minnesota: BMP Menu

BMP Menu

BMP Menu for Phosphorus Removal

City of Mankato BMP Menu for Phosphorus Removal
BMP (with link to USEPA)	Phosphorus Removal Range (from Minnesota Stormwater Manual)
Conservation Easements Easements protecting or limiting the development of land.	No set amount, but prevents additional P from entering the stormwater system.
Low Impact Development Reduces the impact of development and works to maintain predevelopment hydraulic conditions.	No set amount, but prevents additional P from entering the stormwater system.
Grassed Swales Vegetated, open-channel designed to treat and attenuate runoff.	0-45%
Porous Pavement Pavement allowing stormwater to infiltrate to a subsurface reservoir	50-100%
Stormwater Wetlands Constructed wetlands similar in function to Wet Ponds.	40-75%
Wet Ponds Constructed basins that settle out sediment and attenuate flows.	50-75%
Rain Garden Landscape feature that promotes treatment of stormwater. Best when constructed off-line for the Mankato area	65% -85%
Landscaping and Lawn Care Educating homeowners and lawn care professionals on the impact of Landscaping and Lawn Care activities	No set amount, but prevents additional P from entering the stormwater system.
Residential Car Washing Educating the public on the impact of wash water entering the stormwater system.	No set amount, but prevents additional P from entering the stormwater system.
Storm Drain Marking Painting catch basins warning citizen no to bump pollutants into the drain	No set amount, but prevents additional P from entering the stormwater system.
Stream Cleanup and Monitoring Allows concerned citizens to become involved in water pollution prevention by collecting trash along the stream.	No set amount, but prevents additional P from entering the stormwater system.
Parking Lot and Street Cleaning Removes sediment from roadways minimizing what enters the storm drain system.	No set amount, but prevents additional P from entering the stormwater system.
Storm Drain System Cleaning Cleaning reduces the amount of pollutants, trash, and debris in the system	No set amount, but prevents additional P from entering the stormwater system.

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10 Civic Center Plaza Mankato, MN 56001