Monitoring. Floating Islands. Low Impact Development Infrastructure Performance and Risk Assessment May Plan. Public Lands

Transcription

1 Low Impact Development Infrastructure Performance and Risk Assessment May 2016 Monitoring Plan Floating Islands Public Lands

2 Floating Treatment Wetland Monitoring Plan - Summary (Pond 10 & Jannock Pond) 1 TEMPERATURE MONITORING Continuous temperature loggers will be used for this project. One logger will be installed at each of the pond inlets and the outlets (figure 3 & 5). In addition, cables with loggers attached will be dispersed throughout the ponds (figure 1, 3, & 5). On the cable of loggers, temperature loggers will be place every 10 cm for the first 50 cm and then every 50 cm until the bottom (figure 1). Loggers will be installed to the low water level of the pond. Therefore, the weight must be heavy enough and the float small enough that the loggers stay in place when the water level increased during storms. Loggers will be set to record water temperature at 30-minute intervals. Loggers will be installed and recording data from June 1 to September 30. Loggers will be downloaded monthly, to ensure that if there is a problem with one of the loggers only a maximum of one month of data is lost Pond 10 A single temperature logger will be placed in the two (2) inlets and the outlet of Pond 10. Three cables of temperature loggers with be placed in Pond 10, one will be located before the Floating islands, one in the middle of the islands, and the third between the islands and the outlet Jannock Pond A singe temperature logger will be placed in the three (3) inlets and in the one (1) outlet of Jannock Pond. Until islands are installed in Jannock Pond, a single cable of loggers will be installed in the center of the pond Logger Purchases Trent University has agreed to provide 15 Hobo Pendant Continuous Water Loggers. Additional Hobo Pendant Continuous Water Loggers have been purchased by Andrew O Rourke.

3 2 High Water Water Level Floa Low Water Level Loggers -every 20cm for first 0.5m Loggers -every 50cm from 0.5m to bottom Concrete Pond Bottom Figure 1 Diagram of temperature logger string Table 1 Monitoring Schedule Date Activities Comments Before June 1 st Installation June 15 th July 15 th July 30 th August 15th September 15 th Meeting to discuss monitoring data, issues, etc. Summarize data collected to date do we need to adjust the probe locations? October 1st Logger can be removed Summarize data

4 3 2 STUDY AREAS 2.1. Pond 10, Brampton One of the stormwater ponds used for the study is referred to as Pond 10 in the Fletcher s Meadow Secondary Planning area and is located in Brampton, Peel Region, Ontario (figure 4). The pond is located northwest of Chinguacousy Road and Botavia Downs Drive within the Fletcher s Creek Watershed. Study Area Figure 2 Location of Pond 10 within the Fletchers Creek Watershed

5 4 Receiving Stream Overflow Weir Inlet 1 Hickenbottom Outlet Structure Legend Island Logger String Inlet 2 Single Logger Figure 3 Aerial view of pond 10

6 Jannock Pond, Mississauga The second SWM pond used for the study is referred to as Jannock Pond and is located in Mississauga, Peel Region, Ontario (figure 12). Jannock Pond is an on-line wet detention pond located on Mary Fix Creek upstream of Dundas Street on Hillcrest Avenue. Figure 4 Location of Jannock Pond in Mississauga Ontario

7 6 Drainage Swales Inlet 1 Outlet Structure Inlet 2 Receiving Stream Legend Inlet 3 Logger String Single Logger Figure 5 Aerial View of Jannock Pond