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→Performance Monitoring
===Performance Monitoring===
===Performance Monitoring===
[[File:Auto smaplers & tippign buckets.JPG|thumb|500px|The image above shows the use of tipping bucket flow meters and water quality automated samplers inside a monitoring hut located at Kortright Centre in Vaughan ON. This equipment was used to collect water quality from the parking lot asphalt surface and bioretention effluent flows. This was part of a study that examined the eff effectiveness of reactive [[filter media]] amendments as a means of enhancing [[phosphorus]] retention in a [[bioretention]] cell (STEP, 2018<ref>STEP. 2018. Improving nutrient retention in bioretention. Technical brief. Accessed: https://sustainabletechnologies.ca/app/uploads/2019/06/improving-nutrient-retention-in-bioretention-tech-brief.pdf</ref>).]]
Performance monitoring measures how well (or poorly) a management practice or stormwater management facility performs relative to design objectives and targets. Performance monitoring programs are typically undertaken when little information is available regarding the effectiveness of a certain type of facility in a certain environmental context, or when a new technology is being implemented for the first time within a certain context or geographic region.
Performance monitoring programs differ from functional monitoring in that they typically require detailed measurements of a wide range of parameters that often provide information above and beyond what would be required to determine whether the facility meets minimum regulatory requirements.
New or emerging technologies need to be assessed in terms of their performance in order to gain acceptance by review and approval agencies. Performance monitoring is also needed to develop a better understanding of how the design of conventional end-of-pipe facilities can be adapted when LID practices are implemented upstream as part of a [[treatment train]] approach. The [https://sustainabletechnologies.ca/ Sustainable Technologies Evaluation Program (STEP)] provides detailed performance data on a wide range of stormwater management practices. The types of equipment typically employed in performance monitoring of stormwater management facilities may include automated samplers or continuous water quality sondes, water level sensors, flow meters or structures (e.g. weirs, flumes), soil moisture/salinity sensors, tipping bucket rain gauge(s), temperature sensors and other equipment tailored to the specific project monitoring program goals. Central data loggers may be used to collect multiple sources of sensor data to simplify data analysis and interpretation. See the resource section below for more detailed literature on stormwater performance evaluation methods, instrumentation options, quality control procedures and data analysis methods.
===Environmental Effects Monitoring===
===Environmental Effects Monitoring===