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CANADA
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(Click on the different headings to open/close the related information)
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TORONTO & REGION, ONTARIO
(This section includes Stage of RAP development, Beneficial Use Impairments and
their delisting targets,
and information on whether the AOC has been accurately mapped.)
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Stage of RAP Development:
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2
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Are electronic maps available that include the AOC's geographic boundaries
and associated sources of pollution?
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Yes
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Beneficial Use Impairments (BUI):
(The BUI will appear underlined if a delisting target has
been determined.
If underlined,
click on the BUI
to display the delisting target.)
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Restriction on Fish & Wildlife Consumption
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There are no restrictions on fish consumption that are attributable to local
sources.
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Degradation of Fish and Wildlife Population
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* Tests on fish confirm that ambient waters and sediments do not cause death or
long-term health or reproductive effects.
* Biomass of resident, fish-eating fish species increased to levels above 20%
of total resident biomass; biomass of specialist fishes increased to at least
40% of total biomass.
* Formerly abundant fish populations are rehabilitated where locally depressed
or extinct.
* Proportion of native species is increased towards 100% of total fish
community.
* Specific targets contained in watershed plans should be used. Where not
plans exist they should be developed.
* In cold water fisheries areas, sufficient stormwater controls are established
to control run-off from rainfall events of at least 25 mm daily precipitation;
buffer zones of 30m or more separate developed lands from receiving streams and
lakes; temperature impacts should be mitigated.
* In warm water fisheries area, sufficient stormwater controls are established
to control run-off from rainfall events of at least 25 mm daily precipitation;
buffer zones of 15 m or more separate developed lands from receiving streams
and lakes.
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Degradation of Benthos
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* Suspended, transported, and in-place sediments contain levels of contaminants
at or below the Provincial Sediment Quality Guidelines.
* Materials used in lakefilling meet the Fill Quality Guidelines for
Lakefilling in Ontario.
* Lakefilling produces no net loss of aquatic habitat.
* Lakefill structures do not have adverse effects on water circulation.
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Restrictions on Dredging Activities
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* Spended, transported, and in-place sediments contain levels of contaminants
at or below the Provincial Sediment Quality Guidelines.
* Dredged sediments meet Provincial Sediment Quality Guidelines.
* Materials used in lakefilling meet the Fill Quality Guidelines for
Lakefilling in Ontario.
* Lakefilling produces no net loss of aquatic habitat.
* Lakefill structures do not have adverse effects on water circulation.
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Eutrophication or Undesirable Algae
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* Water quality is as good or better than Provincial Water Quality Objectives
95% of the time.
* Sanitary sewage receives secondary treatment with phosphorus removal and
disinfection and produces non-toxic and non-mutagenic effluent with the
following characteristics: biochemical oxygen demand: 25 mg/l; total suspended
solids: 25 mg/l; total phosphorus: 0.5 mg/L.
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Beach Closings
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* Lake water at bathing beaches contains less than 100 escherischia coli
organisms per 100 ml of water over 95% of the swimming season.
* The quality of storm run-off is protected and enhanced.
* Other than in four extreme discharge occurrences (heavy rainfall events) each
year, stormwater discharges to receiving waters meet guideline of 100
Escherischia coli organisms per 100 ml of water, and is devoid of debris, oil,
scum and substances that produce objectionable odour, colour, deposits and
excessive turbidity.
* 90% of the wet weather flow in the combined sewer system is controlled.
* The controlled volume of combined sewage receives treatment at least
equivalent to primary treatment plus disinfection (that is, treatment
equivalent to 50% Biochemical Oxygen Demand removal and 70% total suspended
solids removal).
* Sanitary sewage receives secondary treatment with phosphorus removal and
disinfection and produces non-toxic and non-mutagenic effluent with the
following characteristics: biochemical oxygen demand: 25 mg/l; total suspended
solids: 25 mg/l; total phosphorus: 0.5 mg/L.
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Degradation of Aesthetics
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* Water quality is as good or better than Provincial Water Quality Objectives
95% of the time.
* Waters are free of any substance that produces a persistent objectionable
deposit, unnatural colour or turbidity, or unnatural odour (for instance, oil
slick or surface scum).
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Loss of Fish and Wildlife Habitat
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* Open coast habitat is rehabilitated suitable for spawning populations of
salmonoid fish such as trout.
* Sheltered bays are rehabilitated to encourage re-establishment of aquatic
plants suitable for northern pike, smallmouth bass and largemouth bass
spawning, nursery and feeding habitat.
* Diverse aquatic plant communities are re-established in river mouths and
estuaries suitable for largemouth bass and northern pike production;
rubble/rock slopes are established in fast-flowing river areas favourable for
smallmouth bass production.
* Biotic corridor linkages are protected, enhanced, or rehabilitated across the
waterfront and throughout the stream and valley system.
* Remaining and created wetlands are protected. A significant amount (eg. A
preliminary target of 75 hectares) of wetland areas should be restored to the
waterfront and protected.
* Specific targets contained in watershed plans should be used. Where no plans
exist they should be developed.
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CONTAMINATED SEDIMENT
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Estimated remaining volume of contaminated sediment within the AOC:
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no information
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Remediation to Date:
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Natural Recovery & Source Control is being considered
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WASTEWATER INFRASTRUCTURE
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Improvements to Wastewater Infrastructure - Dollars Spent:
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Environment Canada
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$29,300,000
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Ontario
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$49,500,000
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2 CSO tanks completed in Eastern Beach area
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no information
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Western Beach Tunnel
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no information
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Identified Future Costs for Wastewater Infra. - Dollars Needed:
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CSOs and Stormwater Management
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$625,000,000
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Completion of Wet Weather Flow Management Plan
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no information
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HABITAT
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Projects / Proposals / Costs:
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$15,700,000 on 72 projects - CUF/GLSF
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20 ha. of fish & wildlife habitat created
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75% of priority in-stream barriers have been mitigated
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Removal of stream barriers allow access for salmon into the upper reaches of
the Don River
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On-going implementation of watershed management plans (including fish habitat,
plantings, etc.) & Natural Heritage Strategy by varoius partnerships between
government agencies and community groups.
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OTHER SIGNIFICANT ISSUES
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Issues:
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1 non-point source control project: $1,000,000
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The Living City Campaign - Toronto Region Conservation Authority and
Conservation Foundation of Greater Toronto: $35,000,000 to support programs of
healthy rivers, regional biodiversity, and education for sustainable living
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MANAGEMENT
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Federal:
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Rimi Kalinauskas
Environment Canada
4905 Dufferin Street
Downsview, ON M3H 5T4
(416) 739-5836
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Provincial:
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no information
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Local / PAC:
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Adele Freeman
Toronto and Region CA
5 Shoreham Drive
Downsview, ON M3N 1S4
(416) 661-6600 Ext. 5238
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Please Note:
Values provided are intended as indicators only, and may not
capture all expenditures or work done. Summary is based on best available
Information. "No Information" indicates relevant information was not
available at time of publication.
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