RAP Aesthetics Observations

RAP Aesthetics Observations In order to assess the Degradation of Aesthetics BUI for the Toronto and Region AOC, an assessment protocol was developed that utilized existing monitoring programs and local expertise within the Toronto and Region Conservation Authority (TRCA). The objective of the aesthetics monitoring program was to identify substances that produce persistent objectionable or unnatural debris, turbidity, colour, or odour in local watersheds or along the waterfront, and to compare aesthetics within the AOC to regional conditions.

The protocol’s sampling and analytical methodologies for assessing the Degradation of Aesthetics BUI were adapted from similar work conducted by Heidtka and Tauriainen (1996) in the Rouge River AOC in Detroit, Michigan. The results of a pilot study led by TRCA during 2001 and 2002 (TRCA, 2003), which had community volunteers assess aesthetic conditions of watersheds, were used to further inform the development of a standardized sampling protocol and training for TRCA field crews. Detailed methodology can be found in Method to Assess Beneficial Use Impairment (BUI) Degradation of Aesthetics (Toronto) (Mutton, 2012; Appendix A).

Study Area

Samples (i.e., observations) were collected from nine watersheds within TRCA’s jurisdiction, as well as from Frenchman’s Bay and the Lake Ontario waterfront at Toronto. The area was divided into the “RAP area” and “Non-RAP area” to allow a comparison of conditions within the AOC, to regional conditions. The RAP area includes the six watersheds from Etobicoke Creek in the west to the Rouge River in the east – and corresponding 42 km of waterfront – along the western portion of the jurisdiction, while the Non-RAP area includes the watersheds and waterfront to the east of the Rouge River.

Sample Collection

The aesthetics monitoring program was implemented during 2012, 2013, and 2015 as part of TRCA’s ongoing waterfront and watershed monitoring activities. Aesthetics observations were recorded each time a site was visited by field crews. Observations were made during daylight hours and not during heavy rain. In 2012 and 2015 both stream and waterfront sites were sampled; However during 2013 only stream sites were sampled.

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Additional Info

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Last Updated May 19, 2026, 16:31 (UTC)
Created May 19, 2026, 16:31 (UTC)
Domain / Topic
Domain or topic of the dataset being cataloged.
Title
Title for the Dataset.
RAP Aesthetics Observations
Description
A description of the dataset.

RAP Aesthetics Observations In order to assess the Degradation of Aesthetics BUI for the Toronto and Region AOC, an assessment protocol was developed that utilized existing monitoring programs and local expertise within the Toronto and Region Conservation Authority (TRCA). The objective of the aesthetics monitoring program was to identify substances that produce persistent objectionable or unnatural debris, turbidity, colour, or odour in local watersheds or along the waterfront, and to compare aesthetics within the AOC to regional conditions.

The protocol’s sampling and analytical methodologies for assessing the Degradation of Aesthetics BUI were adapted from similar work conducted by Heidtka and Tauriainen (1996) in the Rouge River AOC in Detroit, Michigan. The results of a pilot study led by TRCA during 2001 and 2002 (TRCA, 2003), which had community volunteers assess aesthetic conditions of watersheds, were used to further inform the development of a standardized sampling protocol and training for TRCA field crews. Detailed methodology can be found in Method to Assess Beneficial Use Impairment (BUI) Degradation of Aesthetics (Toronto) (Mutton, 2012; Appendix A).

Study Area

Samples (i.e., observations) were collected from nine watersheds within TRCA’s jurisdiction, as well as from Frenchman’s Bay and the Lake Ontario waterfront at Toronto. The area was divided into the “RAP area” and “Non-RAP area” to allow a comparison of conditions within the AOC, to regional conditions. The RAP area includes the six watersheds from Etobicoke Creek in the west to the Rouge River in the east – and corresponding 42 km of waterfront – along the western portion of the jurisdiction, while the Non-RAP area includes the watersheds and waterfront to the east of the Rouge River.

Sample Collection

The aesthetics monitoring program was implemented during 2012, 2013, and 2015 as part of TRCA’s ongoing waterfront and watershed monitoring activities. Aesthetics observations were recorded each time a site was visited by field crews. Observations were made during daylight hours and not during heavy rain. In 2012 and 2015 both stream and waterfront sites were sampled; However during 2013 only stream sites were sampled.
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1368.0
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2020-08-10
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Access category
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public
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Toronto and Region Conservation Authority (TRCA) Open Data Licence v1.0 - Toronto and Region Conservation Authority (TRCA)
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Location
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https://trca-camaps.opendata.arcgis.com/datasets/camaps::rap-aesthetics-observations
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Owner
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trca_d.macleod
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Conservation Ontario
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[email protected]
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Conservation Ontario
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trca_d.macleod
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Accessed At
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2023-04-28
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Identifier
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83a34f166d8a4c9c921978d4a01ade51
Language
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English
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https://trca-camaps.opendata.arcgis.com/datasets/camaps::rap-aesthetics-observations
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None
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None
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Conservation Ontario
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The Indigenous communities the dataset is about
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2103
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24
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50472
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