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[[File:DumpsterDiving.jpg|thumb|]]

[[File:DumpsterDiving.jpg|thumb|]]

When assessing LID options on your site, identifying pollution threats is an important part of the pre-design process. Applying the principles of pollution prevention (P2) the use of processes, practices, materials, products, substances or energy that avoid or minimize the creation of pollutants and waste, and reduce the overall risk to the environment and human health can help eliminate those pollution threats, ensure compliance

When assessing LID options on your site, identifying pollution threats is an important part of the pre-design process. Applying the principles of pollution prevention (P2) the use of processes, practices, materials, products, substances or energy that avoid or minimize the creation of pollutants and waste, and reduce the overall risk to the environment and human health can help eliminate those pollution threats, ensure compliance

with regulations and bylaws, and create a safer environment for staff and customers.

with regulations and bylaws, and create a safer environment for staff and customers.

P2 is about anticipating and preventing pollution instead of reacting to it after a spill or release has occurred. It is part of an ongoing pollution management approach comprised of prevention, control and clean-up.

P2 is about anticipating and preventing pollution instead of reacting to it after a spill or release has occurred. It is part of an ongoing pollution management approach comprised of prevention, control and clean-up.

P2 opportunities can be found throughout any site or operation. For instance, installing different equipment or technology, or changing raw materials or staff routines can result in pollution prevention.

P2 opportunities can be found throughout any site or operation. For instance, installing different equipment or technology, or changing raw materials or staff routines can result in pollution prevention.

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!Outdoor storage

!Outdoor storage

|The risk of stormwater pollution is greatest for operations that store large quantities of liquids or bulk materials at sites that are connected to

|The risk of stormwater pollution is greatest for operations that store large quantities of liquids or bulk materials at sites that are connected to the storm drain system. Protecting outdoor storage areas is a simple and effective P2 practice.

the storm drain system. Protecting outdoor storage areas is a simple and effective P2 practice.

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!Vehicle maintenance and repair

!Vehicle maintenance and repair

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!Snow and ice management

!Snow and ice management

|Ontario experiences severe winter weather with large amounts of snowfall. Common snow removal practices include application of de-icer. De-icer is usually made from a urea compound or rock salt. Many property managers apply the products indiscriminately, assuming that more is better. However these de-icers wash into local waterways when the snow starts to melt. The key to de-icer usage is to apply it sparingly, and to remove most of the snow before application. See also [[salt management]].|}

|Ontario experiences severe winter weather with large amounts of snowfall. Common snow removal practices include application of de-icer. De-icer is usually made from a urea compound or rock salt. Many property managers apply the products indiscriminately, assuming that more is better. However these de-icers wash into local waterways when the snow starts to melt. The key to de-icer usage is to apply it sparingly, and to remove most of the snow before application. See also [[salt management]].

 

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==P2 in practice==

==P2 in practice==

Here are three examples of how some P2 techniques have

Here are three examples of how some P2 techniques have

been applied:

been applied:

===Fuelling stations===

===Fueling stations and spill containment===

If activities on your site include the loading and unloading of product or supplies such as chemicals, fuels, or oils, you should have P2 techniques in place. Spill containment measures will temporarily detain any spills allowing for the spill to be cleaned and disposed of properly This can reduce the risks of a spill draining into an LID feature, catch basin or drainage [[swale]]. Valves can be incorporated into the design of the spill containment so that it can easily be drained of rainwater or liquid.

 

If activities on your site include the loading and unloading of product or supplies such as chemicals, fuels, or oils, you should have P2 techniques in place. Spill containment measures temporarily detain any spills, allowing for them to be cleaned and disposed of before reaching storm sewers. This can also reduce the risks of a spill draining into an LID feature, catch basin or drainage [[swale]]. Valves can be incorporated into the design of the spill containment so that it can easily be drained of rainwater or liquid.

 

 

 

 

===Outdoor storage===

===Outdoor storage===

Outdoor storage can create potential pollution threats as rainfall or runoff comes into contact with product, materials or waste being stored outdoors. Further complications are added when property facilities (i.e. waste bins, recycling bins) are susceptible to illegal dumping. To prevent and manage pollution threats from outdoor storage, there are a variety of P2 strategies that can be employed. Simple strategies can be employed such as storing de-icing salt in a dedicated storage container to prevent continual loss of salt from precipitation. Other best practices include using large storage containers to protect chemical storage drums.

Outdoor storage can create potential pollution threats as rainfall or runoff comes into contact with product, materials or waste being stored outdoors. Further complications are added when property facilities (i.e. waste bins, recycling bins) are susceptible to illegal dumping. To prevent and manage pollution threats from outdoor storage, there are a variety of P2 strategies that can be employed. Simple strategies can be employed such as storing de-icing salt in a dedicated storage container to prevent continual loss of salt from exposure to precipitation. Other best practices include using large storage containers to protect chemical storage drums, as seen below.

 

| [[File:Bernardi and Fedar - solvent containment (P2).jpg|thumb|]]

 

===Dumpster management===

===Dumpster management===

Maintenance of dumpsters is often overlooked, and as a result many dumpsters are in poor condition. Cracks in dumpsters will leak toxic organic and inorganic materials into catchbasins and towards waterways. Opportunities for P2 include locating dumpsters on a flat concrete surface that does not slope or drain to the storm drain system, installing a secondary containment system such as a berm or curb around the dumpster, and closing and securing lids properly when the dumpster is not being loaded or unloaded.

Dumpster maintenance is often overlooked. As a result, many dumpsters are in poor condition. Cracks in dumpsters will leak toxic organic and inorganic materials into catchbasins and towards waterways. Opportunities for P2 include locating dumpsters on flat concrete surfaces that do not slope toward or drain into the storm drain system, installing a secondary containment system such as a berm or curb around the dumpster, and closing and securing lids properly when the dumpster is not being loaded or unloaded.

Education is a critical component in the implementation of pollution prevention measures. Training your employees on both P2 procedures as well as the reasons behind them can change

Education is a critical component in the implementation of pollution prevention measures. Training your employees on P2 procedures as well as the reasons behind them can change attitudes toward pollution prevention. Employees may be more diligent in following P2 practices if they understand how it effects the quality of their drinking water.

attitudes toward pollution prevention. Employees may be more diligent in following P2 practices if they understand how it effects the quality of their drinking water.