Low Impact Development Manual for Michigan - OSEH - University ...

Each fact sheet includes:
BMP Fact Sheet
Title
Short definition of BMP
Applications – Indicates in what type of land use BMP is applicable or
feasible (Yes, No, or Limited).
Stormwater Quantity Functions – Indicates how well the BMP functions
in mitigating stormwater management criteria (High, Medium, or Low).
Stormwater Quality Functions – Indicates how well the BMP performs in
terms of pollutant removal (High, Medium, or Low).
Applications Stormwater Quantity Functions
Residential Volume
Commercial
Groundwater
Recharge
Ultra Urban Peak Rate
Industrial Stormwater Quality Functions
Retrofit
Highway/Road
Recreational
TSS – Total
Suspended Solids
TP – Total
Phosphorus
TN or NO3 – Total
Nitrogen/Nitrate
Temperature
Additional Considerations
Cost – Indicate whether cost is high, medium or low by the following categories
• High – => adds more than 5% to total project cost
• Medium – adds 1–5% to total project cost
• Low – =< adds less than 1% to total project cost
Maintenance – Indicates level of maintenance required to maintain BMP
(High, Medium, or Low).
• High – Maintenance intensive (i.e., year-round maintenance)
• Medium – Several times per year
• Low – One time per year
Winter Performance – Indicates if BMP provides equivalent performance
throughout the winter (High, Medium, or Low)
• High – BMP performs very well in winter conditions
• Medium – BMP has reduced performance in winter conditions
• Low – BMP still performs in winter conditions, but performance is
significantly reduced.
Variations
(optional)
List of variations to the BMP if
applicable
Key Design
Features
Bulleted list of information that
is key to the design of BMP
Site Factors
(optional)
List of specific factors that relate
to BMP performance:
• Water table/bedrock separation
distance
• Soil type
• Feasibility on steeper slopes
• Applicability on potential
hotspots (e.g., brownfields)
Benefits
List of benefits directly related to
implementing the BMP
Limitations
List of site constraints associated
with implementation
LID Manual for Michigan – Chapter 6 Page 59