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Implementing effective ESC practices throughout all stages of construction is essential to sustainable [[Urbanization|urban growth]] and ensuring regulatory compliance.

Implementing effective ESC practices throughout all stages of construction is essential to sustainable [[Urbanization|urban growth]] and ensuring regulatory compliance.

[[File:Screenshot 2025-11-07 105736.png|500px|thumb|left|link=http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf|The Toronto and Region Conservation Authority, through STEP, published the [http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf Erosion and Sediment Control Guide for Urban Construction] in 2019. This wiki page summarizes key content from the guide and provides additional resources; however, readers should consult the full guide for comprehensive information. Click on the image to access the guide.]]

[[File:Screenshot 2025-11-07 105736.png|500px|thumb|left|link=http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf|The Toronto and Region Conservation Authority, through STEP, published the [http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf Erosion and Sediment Control Guide for Urban Construction] in 2019. This wiki page summarizes key content from the guide and provides additional resources; however, readers should consult the full guide for comprehensive information. Click on the image to access the guide (STEP, 2019) <ref>STEP. 2019. Erosion and Sediment Control Guide for Urban Construction. https://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf</ref>.]]

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The hybrid qualitative ERA approach is recommended in the above situations, except where local regulatory agencies require a different approach. The hybrid qualitative ERA approach estimates [[Erosion#Erosion_potential|erosion risk]] by dividing a site into areas based on [[soil groups|soil]], [slope], and ground cover, then rating each area as low, moderate, or high [[Erosion#Erosion_potential|erosion risk]] to help choose the right erosion control practices for each stage of construction. Completing an ERA demonstrates due diligence, identifies high-risk areas early, informs effective BMP selection and placement, guides the use of enhanced controls, and provides context for decision-making. To learn more about ERAs, read section 6.2 in the [http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf Erosion and Sediment Control Guide for Urban Construction] (2019).

The hybrid qualitative ERA approach is recommended in the above situations, except where local regulatory agencies require a different approach. The hybrid qualitative ERA approach estimates [[Erosion#Erosion_potential|erosion risk]] by dividing a site into areas based on [[soil groups|soil]], [[slope]], and ground cover, then rating each area as low, moderate, or high [[Erosion#Erosion_potential|erosion risk]] to help choose the right erosion control practices for each stage of construction. Completing an ERA demonstrates due diligence, identifies high-risk areas early, informs effective BMP selection and placement, guides the use of enhanced controls, and provides context for decision-making. To learn more about ERAs, read section 6.2 in the [http://sustainabletechnologies.ca/app/uploads/2020/01/ESC-Guide-for-Urban-Construction_FINAL.pdf Erosion and Sediment Control Guide for Urban Construction] (2019).

==ESC plan design==

==ESC plan design==

#Final stabilization/rehabilitation and ESC decommissioning}}

#Final stabilization/rehabilitation and ESC decommissioning}}

An ESC plan should include drawings, standard notes and reports depicting and describing the site conditions (e.g. grades, locations of natural features, soil stockpiles and other key points of interest) during each phase of construction, and the BMPs that will be

An ESC plan should include drawings, standard notes and reports depicting and describing the site conditions (e.g. [[grading|grades]], locations of natural features, [[soil]] stockpiles and other key points of interest) during each phase of construction, and the BMPs that will be

applied to mitigate erosion and sediment transport.

applied to mitigate erosion and sediment transport.

! Description

! Description

! Applicability

! Applicability

! Additional Resources

! Drawings and Additional Resources

! Example Image

! Example Image

|-

|-

| Preservation of vegetated areas intercepts and infiltrates rainfall.

| Preservation of vegetated areas intercepts and infiltrates rainfall.

| Areas not being immediately developed on larger sites (>10 ha)

| Areas not being immediately developed on larger sites (>10 ha)

|  

|

|  

|  

[[File:Phased land clearing.png|200px|frameless|center]]

[[File:Phased land clearing.png|200px|frameless|center]]

*Adjacent to valley/stream corridors

*Adjacent to valley/stream corridors

|  

|  

|  

|  

[[File:Screenshot 2025-07-30 164042.png|200px|frameless|center]]

[[File:Screenshot 2025-07-30 164042.png|200px|frameless|center]]

| Energy dissipation devices or surface hardening that prevents scour erosion at outlets.

| Energy dissipation devices or surface hardening that prevents scour erosion at outlets.

| Base of any outlet releasing concentrated flow

| Base of any outlet releasing concentrated flow

| [https://feng.stafpu.bu.edu.eg/Civil%20Engineering/2476/publications/Mohammad%20Mahmoud%20Mohammad%20Ibrahim_ZJ0608295304.pdf Baffle shapes and size analysis]

|  

 

[https://feng.stafpu.bu.edu.eg/Civil%20Engineering/2476/publications/Mohammad%20Mahmoud%20Mohammad%20Ibrahim_ZJ0608295304.pdf Baffle shapes and size analysis]

|  

|  

[[File:Screenshot 2025-07-31 105113.png|200px|frameless|center]]

[[File:Screenshot 2025-07-31 105113.png|200px|frameless|center]]

*In conjunction with mulching/seeding

*In conjunction with mulching/seeding

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|  

|  

|  

[[File:Screenshot 2025-07-30 164229.png|200px|frameless|center]]

[[File:Screenshot 2025-07-30 164229.png|200px|frameless|center]]

*Erosion scars  

*Erosion scars  

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|  

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|  

[[File:Screenshot 2025-07-31 121353.png|200px|frameless|center]]

[[File:Screenshot 2025-07-31 121353.png|200px|frameless|center]]

! Description

! Description

! Applicability

! Applicability

! Additional Resources

! Drawings and Additional Resources

! Example Image

! Example Image

|-

|-

*Parallel to areas with sediment laden sheet flow  

*Parallel to areas with sediment laden sheet flow  

|  

|  

|  

|  

[[File:Screenshot 2025-11-13 131335.png|200px|frameless|center]]

[[File:Screenshot 2025-11-13 131335.png|200px|frameless|center]]

*in place of sediment fence when frozen  

*in place of sediment fence when frozen  

| [https://sourcetostream.com/2025-track-2-day-1-anderton/ S2S Conference Presentation]

| [https://sourcetostream.com/2025-track-2-day-1-anderton/ S2S Conference Presentation]

[https://sustainabletechnologies.ca/home/erosion-and-sediment-control/permeable-barriers/compost-biofilters-for-stormwater-management/ Compost Biofilters for SWM (TRCA, 2007)]

[https://sustainabletechnologies.ca/home/erosion-and-sediment-control/permeable-barriers/compost-biofilters-for-stormwater-management/ Compost Biofilters for SWM (TRCA, 2007)]

|  

|  

|-

|-

| [[Media:B2_NATURAL_FIBRE_LOGS.pdf|Natural Fibre Logs]]

| [[Media:Naturalfibrelogsonly.pdf |Natural Fibre Logs]]

| Similar to filter socks but made of biodegradable materials such as coir, straw, or wood.

| Similar to filter socks but made of biodegradable materials such as coir, straw, or wood.

|

|

*in place of sediment fence when frozen  

*in place of sediment fence when frozen  

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|  

|  

|  

[[File:Screenshot 2025-08-06 101657.png|200px|frameless|center]]

[[File:Screenshot 2025-08-06 101657.png|200px|frameless|center]]

*Do not use in natural features

*Do not use in natural features

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|  

[[File:Screenshot 2025-08-06 100905.png|200px|frameless|center]]

[[File:Screenshot 2025-08-06 100905.png|200px|frameless|center]]

*required by municipality  

*required by municipality  

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|  

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|  

[[File:Screenshot 2025-07-30 161438.png|200px|frameless|center]]

[[File:Screenshot 2025-07-30 161438.png|200px|frameless|center]]

*best used in treatment train

*best used in treatment train

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|  

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|  

[[File:Screenshot 2025-08-06 103437.png|200px|frameless|center]]

[[File:Screenshot 2025-08-06 103437.png|200px|frameless|center]]

*treatment train required for drainage areas >1 ha  

*treatment train required for drainage areas >1 ha  

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|  

|  

|  

[[File:Screenshot 2025-08-06 103724.png|200px|frameless|center]]

[[File:Screenshot 2025-08-06 103724.png|200px|frameless|center]]

*drainage areas ≤ 2 ha that do not drain to another detention feature

*drainage areas ≤ 2 ha that do not drain to another detention feature

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|  

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[[File:Screenshot 2025-11-13 103532.png|200px|frameless|center]]

[[File:Screenshot 2025-11-13 103532.png|200px|frameless|center]]

*Treatment of runoff from drainage areas > 2 ha  

*Treatment of runoff from drainage areas > 2 ha  

*end-of-pipe control  

*end-of-pipe control  

| [https://sustainabletechnologies.ca/home/erosion-and-sediment-control/construction-sediment-control-ponds/ STEP Wet Ponds Page]

|

 

[https://sustainabletechnologies.ca/home/erosion-and-sediment-control/construction-sediment-control-ponds/ STEP Wet Ponds Page]

|  

|  

[[File:Screenshot 2025-08-06 104639.png|200px|frameless|center]]

[[File:Screenshot 2025-08-06 104639.png|200px|frameless|center]]

*During the initial installation of ESC measures  

*During the initial installation of ESC measures  

*On a weekly basis during active construction  

*On a weekly basis during active construction  

*Before and after significant rainfall and snowmelt events  

*Before and after significant [[Understanding rainfall statistics|rainfall]] and [[Winter|snowmelt]] events  

*After any extreme weather which could result in damage to ESC measures  

*After any extreme weather which could result in damage to ESC measures  

*Daily during extended rain or snowmelt periods  

*Daily during extended rain or snowmelt periods  

|}

|}

The extent of turbidity monitoring and methods used on a given construction project should be based on erosion risk, receiving water flows, presence of species at risk, and type and location of discharge points.

The extent of turbidity [[monitoring]] and methods used on a given construction project should be based on [[Erosion#Erosion_potential|erosion risk]], receiving water flows, presence of species at risk, and type and location of discharge points.

{{textbox|The monitoring program for sites applying the receiving water target should include the following components:  

{{textbox|The monitoring program for sites applying the receiving water target should include the following components:  

*One continuous online turbidity monitoring station 5 to 15 m downstream of the last site discharge point.  

*One continuous online turbidity monitoring station 5 to 15 m downstream of the last site discharge point.  

*At least one continuous online turbidity monitoring station immediately upstream of the site.}}

*At least one continuous online turbidity monitoring station immediately upstream of the site.}}

Each turbidity monitoring station should be equipped with a turbidity sonde, data logger, power supply, protective enclosure, and, where Species at Risk (SAR) are present, telemetry capabilities. Continuous turbidity monitoring should be maintained until the site has reached at least 80% effective permanent stabilization. Where continuous monitoring is not feasible, grab samples should be collected. To support interpretation of turbidity exceedances, precipitation data should be obtained from a rain gauge located within 5 km of the site. Clear protocols for responding to and reporting turbidity exceedances should be established for all sites with continuous monitoring.

Each turbidity monitoring station should be equipped with a turbidity sonde, data logger, power supply, protective enclosure, and, where Species at Risk (SAR) are present, telemetry capabilities. Continuous turbidity monitoring should be maintained until the site has reached at least 80% effective permanent stabilization. Where continuous monitoring is not feasible, grab samples should be collected. To support interpretation of turbidity exceedances, [[Intensity-Duration-Frequency Curves|precipitation]] data should be obtained from a rain gauge located within 5 km of the site. Clear protocols for responding to and reporting turbidity exceedances should be established for all sites with continuous monitoring.

==Maintenance of ESC==

==Maintenance of ESC==

==Additional Resources==

==Additional Resources==

*[https://www.beyond21.world/sustainable-infrastructure-lid Course on Introduction to Erosion and Sediment Control & Best Practices for LID Implementation]

*[https://www.beyond21.world/sustainable-infrastructure-lid Course on Introduction to Erosion and Sediment Control & Best Practices for LID Implementation]

*[https://sustainabletechnologies.ca/erosion-and-sediment-control-guide-for-urban-construction/ ESC guide for urban construction workshop (To access, enter password ESCGUCwebinar20]

*[https://sustainabletechnologies.ca/erosion-and-sediment-control-guide-for-urban-construction/ ESC guide for urban construction workshop (To access, enter password ESCGUCwebinar20)]

*[https://sustainabletechnologies.ca/introduction-to-erosion-sediment-control-e-learning-course/ Introduction to Erosion Sediment Control E-Learning Course]

*[https://sustainabletechnologies.ca/introduction-to-erosion-sediment-control-e-learning-course/ Introduction to Erosion Sediment Control E-Learning Course]

*[https://sourcetostream.com/2023-track-2-day-2-dhanraj/ Erosion Control Infrastructure – Asset Operation and Management Plans Presentation]

*[https://sourcetostream.com/2023-track-2-day-2-dhanraj/ Erosion Control Infrastructure – Asset Operation and Management Plans Presentation]