Reducing Site Costs By Going Green

  In addition to the emergence of LEED Certification over the last number of years, municipalities and conservation agencies have set sustainable planning objectives for new developments with a push towards "Low Impact Development" (LID) requirements. LID strategies emphasize the use of natural or engineered stormwater controls to mimic the...

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Using Bioswales for Passive Stormwater Treatment

  Bioswales are one of several passive options available to meet the stormwater management objectives for a development which and can be located wherever traditional landscaped areas are proposed. They are typically located within traffic islands or adjacent to parking lots. Bioswales provide both a water quality and water balance component...

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Site Sediment and Erosion Control Requirements

  Clearing and grubbing of land during the construction process results in the loss of vegetative cover. The loss of this cover and the loss of stable topsoil during the site stripping process leave the underlying soils vulnerable to the erosion process. The exposed soils are subjective to wind forces...

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The Practicality and Cost Effectiveness of Infiltration Trenches

Infiltration trenches are shallow surface or subsurface excavations lined with filter fabric and filled with clear stone which provide temporary retention within the stone voids until the stormwater can percolate into the ground. Trenches are typically sized for more frequent storm events and provides treatment for first flush storms which...

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On-site Wastewater Treatment Systems

  On-site sewage treatment systems are used throughout Ontario to safely treat and discharge wastewater from a variety of sources in rural and less populated areas throughout the province. There are more than 1.2 million on-site systems in Ontario with most of these systems providing treatment for residential and smaller...

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Meeting Stormwater Quality Objectives with Oil Grit Separators

  Oil grit separators are devices which are typically installed on a private storm sewer system that assist in the removal of sediments from storm drainage and are designed to separate oil from stormwater and keep it contained onsite for proper disposal.   There are a variety of proprietary and...

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Getting The Most Out of Rooftop Storage

  A large number of buildings constructed in Ontario are constructed with flat roofs. Flat roofs are typically designed with shallow slopes which drain to roof drains located throughout the roof. The location of roof drains and the allowable ponding depth of runoff above roof drains are factors that are...

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Evolving Municipal Stormwater Management Objectives

  Prior to the 1970's, the approach to flooding control was to convey drainage as quickly as possible to nearby streams and rivers in an effort to protect human life and reduce property damage. This often led to increase costs of infrastructure due to very large storm sewers as well...

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Bioswales - A Cost Effective Stormwater Management Practice

  In recent years, the push towards more sustainable developments and environmental initiatives such as "LEED", have forced engineers to look for cost effective, innovative solutions to achieve stringent stormwater quality and quantity targets, and to reduce all storm flows to the municipal storm systems by retaining or re-using stormwater on-site.  ...

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Dynamics of the Site Servicing Approval Process

  A major portion of the engineering design that is associated with the construction of industrial and commercial type buildings is completed under the well-defined scope of the Ontario Building Code. Typically the building design along with its mechanical and electrical components is reviewed by the local municipal building department...

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A Schedule of Rates Saves Time and Money

The vast majority of building contracts administered by Architects and Project Managers in Ontario are lump sum (stipulated price) contracts. This typical type of contract is used for measurable work involving standard construction procedures and work not easily broken down into definable units. With this type of contract, the owner...

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