Note: Notice of Motion provided at the April 5, 2022 Special Development Services Committee meeting.
Whereas the City of Markham recognizes that new Community Development should be premised on the efficient use of land for the benefit of the City and its residents; and,
Whereas underground tank facilities are commonly used to manage stormwater runoff in various settings both locally and around the world and are endorsed by multiple leading industry consultants and the Toronto and Region Conservation Authority (TRCA) due to their environmental and ecological benefits; and,
Whereas managing stormwater runoff in underground municipal facilities represents an opportunity for the City to implement industry leading techniques to create more livable communities; and,
Whereas municipal underground stormwater management facilities provide opportunities to create active and passive parks on the land above them, thereby increasing social and recreational benefits for the residents of the City and making highly efficient use of land; and,
Whereas underground stormwater management facilities are structurally capable of supporting a full range of requirements normally associated with active parks including, but not limited to, small scale buildings, playing fields with goal posts, lighting, spectator seating, irrigation systems, and with sufficient soil depths to support landscape plantings as necessary; and,
Whereas active parks on land above underground stormwater management facilities are eligible for parkland credit, the extent to which will be negotiated on a case-by-case basis; and,
Whereas the cost of maintaining underground stormwater management facilities is no greater than the cost of maintaining traditional stormwater management ponds; and,
Whereas underground stormwater management facilities meet or exceed stormwater treatment standards, if appropriately designed and located, and can assist in reducing negative thermal impacts of municipal stormwater runoff; and,
Whereas the socioeconomic value of the efficient use of land above an underground stormwater management facility is greater than that of single use traditional stormwater management ponds; therefore,
- BE IT RESOLVED THAT The City of Markham shall accept municipal underground stormwater management facilities as an alternative to open stormwater management ponds.
- Staff shall be authorized and directed to negotiate parkland credit for the land above underground stormwater management facilities on a case-by-case basis;
- Staff shall be directed to include underground stormwater management facilities within the Standards of the City of Markham.