Stormwater management facilities control the quantity of stormwater runoff leaving the property. To summarize, this requirement states that the quantity of runoff after development must not exceed the quantity of runoff leaving the site before development. You do not need to know the technical approach to accomplish this task but you need to understand the local municipal regulations on the design preferences, operation requirements, bonding, as-built requirements, ownership, and maintenance provisions. Stormwater management facilities use land suitable for buildings, etc. to control the quantity of stormwater runoff. Thus, the net buildable area will be reduced based on SWM requirements. Some provisions of the local SWM regulations may include: fencing, landscaping, maintenance access drives, location, and turnover procedures.
7. Best Management Practices
As stormwater management facilities control the quantity of stormwater runoff, best management practices, BMP, control the quality of the stormwater runoff prior to leaving the site. Again, there are numerous ways to achieve the water quality standards but the local regulations will outline municipal preferences, construction standards, operation, ownership, and maintenance requirements. BMP’s will require land for installation and the cost of installation may be high. More importantly, know their regulatory approach to construction inspection, as-builts, bonding, maintenance provisions, and the turnover process.
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