Case studies for stormwater and rainwater harvest and use/reuse

Case Studies for Reuse

Name of Project: Mississippi Watershed Management Organization (MWMO)

Type of Reuse System: Cistern

Overview: The cistern located at the MWMO utilizes stormwater runoff from the main office area roof to water trees in a trench system.

Location: Mississippi Watershed Management Organization, 2522 Marshall Street NE, Minneapolis 55418

Owners: Mississippi Watershed Management Organization

Contractors: Meisinger Construction-general contractor for facility construction

Operators: Mississippi Watershed Management Organization

Cost:

Concrete Slab - 💲 5,200 Cistern (including piping) – 💲23,700 Rain Leader - 💲 8,400

additional plumbing would be needed if plumbed into the building to be used as grey water

Type and size of system: 4,000 gallon capacity CorGal Water Tank, volume annual dependent on rainfall, filled by roof runoff only

Year of Completion: 2012

Drivers/Stormwater Goals: To water trees, reduce stormwater runoff that reaches the river, infiltrate rainwater. Future use as grey water in facility.

Funding (sources): Public – MWMO funding

Partners: n/a

Photos: (include location and who took the picture) Photos by MWMO Staff

Cistern located at Mississippi Watershed Management Organization

Cistern located at Mississippi Watershed Management Organization

Monitoring? For what? Total Suspended Solids, VSS, bacteria, once every 3 months

Web links:

http://mwmo.org/

Lessons Learned:

Design flaws – the plumbing was not correct and all the water drained out, the rain leader diverter operation was not intuitive. Additionally plumbing code hindered process of connecting to facility to be used as grey water. Staff opted to do this at a later time once plumbing codes were updated and other projects set precedence.

For more information contact:

• Doug Snyder, MWMO
• Dnsyder@mwmo.org
• 612-746-4971