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→Schools
(referred to as a ‘source area’). These areas should be
(referred to as a ‘source area’). These areas should be
targeted when introducing LID at your school.
targeted when introducing LID at your school.
Targeting hard surfaces
===Targeting hard surfaces===
Parking areas represent the most significant source of
Parking areas represent the most significant source of
pollutant loading from school sites and contribute significantly
pollutant loading from school sites and contribute significantly
implement bioswales or bioretention areas. Perforated pipe
implement bioswales or bioretention areas. Perforated pipe
systems may also work in areas adjacent to parking lots.
systems may also work in areas adjacent to parking lots.
Roof options
===Roof options===
Schools typically have large flat roofs that produce a significant
Schools typically have large flat roofs that produce a significant
amount of runoff that is drained internally via rain leaders.
amount of runoff that is drained internally via rain leaders.
providing insulation during the winter and evaporative cooling
providing insulation during the winter and evaporative cooling
during the summer.
during the summer.
Pollution prevention (P2)
===Pollution prevention (P2)===
On school sites, P2 strategies and practices, such as modifying
On school sites, P2 strategies and practices, such as modifying
de-icing programs and isolating drainage from waste storage
de-icing programs and isolating drainage from waste storage
activities. Discuss these changes with your school board and
activities. Discuss these changes with your school board and
operations staff.
operations staff.
School board partnerships with
===School board partnerships with
municipalities
municipalities===
LID practices located on school grounds can also be used to
LID practices located on school grounds can also be used to
treat stormwater from external properties. These partnership
treat stormwater from external properties. These partnership
• Funds for maintenance of on-site LIDs
• Funds for maintenance of on-site LIDs
Regulatory Compliance
===Regulatory Compliance===
The objectives, technologies, and standard practices
The objectives, technologies, and standard practices
associated with stormwater management are constantly
associated with stormwater management are constantly
reduce taxes or prevent costly upgrades required at a later
reduce taxes or prevent costly upgrades required at a later
date.
date.
The table below identifies the LID practices that are common,
possible and unlikely options for the source areas that you
possible and unlikely options for the source areas that you
are likely to find on your retrofit site. These source areas are:
are likely to find on your school site. These source areas are:
• Active use area
• Active use area
• Passive use area
• Passive use area
break. Include summer operations staff time in
break. Include summer operations staff time in
your budget during the planning process.
your budget during the planning process.
Small-scale projects
===Small-scale projects===
Starting with small-scale projects is a good strategy to
Starting with small-scale projects is a good strategy to
increase interest within your school, determine what support
increase interest within your school, determine what support
processes required to move a LID project from planning to
processes required to move a LID project from planning to
finished product.
finished product.
Large-scale projects
===Large-scale projects===
Large-scale projects require significantly more effort, budget,
Large-scale projects require significantly more effort, budget,
and staff than small-scale projects. Large-scale LID retrofits
and staff than small-scale projects. Large-scale LID retrofits
following distinctions that set these retrofits apart from smallscale
following distinctions that set these retrofits apart from smallscale
projects.
projects.
Integration with long-term infrastructure
===Integration with long-term infrastructure
replacement and rehabilitation plans
replacement and rehabilitation plans===
Most large-scale LID retrofits must function with existing
Most large-scale LID retrofits must function with existing
site infrastructure, such as storm sewers, catch basins,
site infrastructure, such as storm sewers, catch basins,
have been set aside for a parking lot replacement could be
have been set aside for a parking lot replacement could be
transferred to a retrofit project.
transferred to a retrofit project.
Involvement of consultants and contractors
===Involvement of consultants and contractors===
Consultants are required for large-scale retrofit projects,
Consultants are required for large-scale retrofit projects,
specifically for the final screening of options, pre-design,
specifically for the final screening of options, pre-design,
Refer to Chapter 7 for tips on how to select the
Refer to Chapter 7 for tips on how to select the
right contractor for your project.
right contractor for your project.
More intensive public consultation
===More intensive public consultation===
Stakeholders must be closely involved in the retrofit process
Stakeholders must be closely involved in the retrofit process
for large-scale LID projects. These projects have longer
for large-scale LID projects. These projects have longer
continued success. All stakeholder groups must be aware of
continued success. All stakeholder groups must be aware of
the long-term project needs before implementation.
the long-term project needs before implementation.
External approvals
===External approvals===
Large-scale retrofits may require a variety of approvals at the
Large-scale retrofits may require a variety of approvals at the
municipal, watershed, provincial, and/or federal level.
municipal, watershed, provincial, and/or federal level.
implementing a large-scale retrofit. School board policies may
implementing a large-scale retrofit. School board policies may
require amendments to move forward.
require amendments to move forward.
Next Steps
===Next Steps===
After reading this chapter you should know how to select the
After reading this chapter you should know how to select the
right LID practice for your site. You should also be familiar
right LID practice for your site. You should also be familiar