Changes

*'''Irrigation System''': Maintenance or replacement of these system components shall take place as required, meanwhile winterizing watering systems to prevent damage shall take place twice a year (in the Spring and Fall). To limit excess salt impacts in the feature flushing and/or leaching excess sodium in the soil should be done annually in the spring by fully saturating the passive irrigation system with water.

*'''Irrigation System''': Maintenance or replacement of these system components shall take place as required, meanwhile winterizing watering systems to prevent damage shall take place twice a year (in the Spring and Fall). To limit excess salt impacts in the feature flushing and/or leaching excess sodium in the soil should be done annually in the spring by fully saturating the passive irrigation system with water.

*'''Soil / Growing Medium''': Testing of soil to determine its structure, organic matter and confirm microbial level counts are satisfactory for selected vegetation will take place at installation and during performance diagnostic intervals. Whereas organic fertilizing and soil amendments recommended by testing will be done on an as-needed basis.

*'''Underdrain''': Flush out accumulated sediment with a hose or for more intensive clogging a pressure washer, done on an as-needed basis.

*'''Underdrain''': Flush out accumulated sediment with a hose or for more intensive clogging a pressure washer, done on an as-needed basis.

*'''Vegetation''': Perform routine vegetation maintenance tasks (i.e., watering, weeding, trimming) at recommended frequencies over the two-year establishment period for the plantings and replace plants that don't survive. Replacement of dead/diseased plants as needed thereafter to maintain 80% vegetation coverage.

*'''Vegetation''': Perform routine vegetation maintenance tasks (i.e., watering, weeding, trimming) at recommended frequencies (weekly or as required to maintain optimal soil moisture) over the two-year establishment period for the plantings; and replace plants that don't survive the initial establishment period (assumes 10% and 20% of plant material does not survive the first year for Minimum Recommended and High Frequency maintenance scenarios, respectively). Replacement of dead/diseased plants once established shall take place every 6 months or yearly dependent upon the minimum of 80% vegetation coverage. Remove any undesirable vegetation (invasive, seedlings etc.) every 3 - 6 months, and ensure proper pruning, cut back and thinning of shrubs and plants every year.

For more detailed guidance, refer to STEP's [https://sustainabletechnologies.ca/app/uploads/2016/08/LID-IM-Guide-2016-1.pdf Low Impact Development Stormwater Management Practice Inspection and Maintenance Guide] and City of Toronto's [https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/ Construction Specifications and Drawings for Green Infrastructure] documents.<ref> Toronto and Region Conservation Authority. 2016. Low Impact Development Stormwater Management Practice Inspection and Maintenance Guide. https://sustainabletechnologies.ca/app/uploads/2016/08/LID-IM-Guide-2016-1.pdf</ref> <ref> City of Toronto. 2021. Construction Specifications and Drawings for Green Infrastructure. https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/</ref>