introduCtion City of Calgary (continued) ConCrete pipe Under the City of Calgary’s Drainage Bylaw, the following conditions must be met pertaining to the maintenance of interceptors: Any Person who owns or occupies a Parcel on which the Director, Water Resources has, pursuant to Section 8, directed an Interceptor, device or practice be implemented in order to control or reduce the amount of runoff or improve water quality or infiltration must: (a) keep the Interceptor, device or practice in good working condition at all times; (b) service the Interceptor, device or practice often enough so that it does not become overloaded; and stormwater treatment teChnologies (c) keep a maintenance record and provide such maintenance record to the City upon request. No Person shall deposit, or cause or allow to be deposited, any residue from an Interceptor, device or practice into the Storm Drainage System. (B/L 15M2006, 2006 January 24) (B/L 57M2009, 2009 November 2) Canmore Under the Town of Canmore’s Stormwater Master Plan, and according to their Engineering Design and Construction Guidelines, oil-grit separators are required on all discharges for new developments. Additionally, ponds with a discharge located within 500 m of any natural water course must incorporate an approved oil/grit separator unit, or other water quality enhancement BMP acceptable to the Town. For design requirements, the Town’s EDCG states that storm designs shall reduce contaminant loading to meet TSS removal requirements of 90% of particle sizes equal to or greater than 70 microns. Further, water quality enhancements and/or treatment trains should be capable of removing most soluble pollutants, as well as fine grained particulate matter. box seCtions manhole and CatCh basin material LAFARGE PIPE eMANUAL PAGE 41