![Page 1: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/1.jpg)
Nutrient Management in the Urban LandscapeRebecca Kluckhohn, P.E. Watershed Engineer
West Metro Water Alliance Forum, May 18th
2011
WW e n c kEngineers & Scientists
![Page 2: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/2.jpg)
Overview: Urban/ Suburban
W e n c kEngineers & Scientists
• Why do we care?
• Sources
• Solutions
• Cost vs. Benefit
![Page 3: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/3.jpg)
Why do we care?
W e n c kEngineers & Scientists
• Water resources• lakes & streams
• Regulations
• MS4s
• TMDL
• People complain
• Level of service
• Budgets
![Page 4: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/4.jpg)
W e n c kEngineers & Scientists
• Altered hydrology• Dry deposition & wash
off from impervious areas • Urban green space• Pet waste• Urban wildlife
Sources
![Page 5: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/5.jpg)
W e n c kEngineers & Scientists
• Source: Altered hydrology?
• Solution: Reduce runoff• Reduce impervious
area• Mitigate soil
compaction• Pervious pavement• Green roof• Depressional Storage
Sources…Solution
![Page 6: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/6.jpg)
W e n c kEngineers & Scientists
• Source: Dry deposition & wash off from impervious areas
Parking lots, driveways, rooftops, sidewalks• Solution: Manage
what comes off of the impervious you do have
• Disconnect them• Street sweeping• Pet waste ordinance• Education
Sources…Solution
![Page 7: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/7.jpg)
W e n c kEngineers & Scientists
• Source(s): Urban green space• Lawns, leaf litter,
phosphorus fertilizer• Pet waste• Urban wildlife• Degraded wetlands
Solution• Leaf litter ordinance• Pet waste ordinance• Education
Sources…Solution
![Page 8: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/8.jpg)
W e n c kEngineers & Scientists
• Rain gardens,• Bioretention• Swales• Pervious
pavement• Green roofs• Underground
storage• Cisterns
BMPS: Where to put them?
Understand how to link:
• Cost of design, construction, O&M of stormwater BMPs/ Benefits
• Impact of practices/ BMPs on water quality– target a specific outcome
• Communicate a level of service to constituents
![Page 9: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/9.jpg)
Things to Watch for:
W e n c kEngineers & Scientists
• Linkage of TMDL goals with MS4 permit requirements/ development requirements– this will most likely be more restrictive than current standards
• Move from design standards to performance standards/ effluent limits
![Page 10: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/10.jpg)
Things to Watch for:
W e n c kEngineers & Scientists
• Emerging practices
• Water Reclamation & Reuse
• Twins Stadium
• Kimball, MN
• Integrated Functions for Stormwater Infrastructure
• Aesthetic, recreation
• Green Infrastructure
![Page 11: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/11.jpg)
Things to Watch for:
W e n c kEngineers & Scientists
• Economic Issues: • The need to quantify & communicate
the value of stormwater management • The need for financing (long-term
O&M)• Groundwater impacts
• Climate Change– The intersection of stormwater management and energy management
• Breakdown of the separation between dealing with “storm”water and just dealing with water
![Page 12: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/12.jpg)
Things to Watch Out for:
W e n c kEngineers & Scientists
• Green Infrastructure vs. Grey Infrastructure Don’t throw the baby out with the bathwater…you typically need both. Grey doesn’t always mean “not green”.• You can’t deal with the 100 year event in a rain
garden• Application of BMPs will always be site specific• Justify costs to keep sustainability sustainable
![Page 13: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/13.jpg)
Opportunities:
W e n c kEngineers & Scientists
Look for opportunities in your practice for creating visual expressions of stormwater management/ infrastructure to further the cause of water resource protection
![Page 14: Nutrient Management in the Urban Landscape Rebecca Kluckhohn, P.E. Watershed Engineer West Metro Water Alliance Forum, May 18 th 2011 W W e n c k Engineers](https://reader035.vdocuments.mx/reader035/viewer/2022062500/56649e615503460f94b5bdb6/html5/thumbnails/14.jpg)
Questions?
WW e n c kEngineers & Scientists