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{{alert|Permeable pavement can be an important tool for retention and detention of stormwater runoff. Permeable pavement may provide additional benefits, including reducing the need for de-icing chemicals, and providing a durable and aesthetically pleasing surface.|alert-success}}
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==Compliance with the Americans with Disabilities Act (ADA)==
 
==Compliance with the Americans with Disabilities Act (ADA)==
All permeable pavements are ADA compliant. PICP is compliant if designs are used with joints less than ½ inch wide.
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All permeable pavements are [http://www.ada.gov/ ADA] compliant. [[Glossary|PICP]] is compliant if designs are used with joints less than ½ inch wide.
  
==Groundwater Protection and Underground Injection Control Permits==
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==Groundwater protection and underground injection control permits==
The Safe Drinking Water Act regulates the infiltration of stormwater in certain situations pursuant to the Underground Injection Control (UIC) Program, which is administered either by the US EPA or a delegated state groundwater protection agency. The US EPA (USEPA 2008) determined that permeable pavement installations are not classified as Class V injection wells since they are always wider than they are deep. There may be an exception in karst terrain if the discharge from permeable pavement is directed to an improved sinkhole, although this would be uncommon.
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The Safe Drinking Water Act regulates the infiltration of stormwater in certain situations pursuant to the Underground Injection Control (UIC) Program, which is administered either by the US EPA or a delegated state groundwater protection agency. The US EPA (USEPA 2008) determined that permeable pavement installations are not classified as [http://water.epa.gov/type/groundwater/uic/class5/index.cfm Class V] injection wells since they are always wider than they are deep. There may be an exception in karst terrain if the discharge from permeable pavement is directed to an improved sinkhole, although this would be uncommon.
  
==Air and Runoff Temperature==
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==Air and runoff temperature==
Permeable pavement appears to have some value in reducing summer runoff temperatures which can be important in watersheds with sensitive cold-water fish populations. The temperature reduction effect is greatest when runoff is infiltrated into reservoir layer when underdrains are used. All permeable pavements exhibit cooler summer temperatures than their impervious counterparts. This is likely due to a higher specific heat of permeable pavements.
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Permeable pavement appears to have some value in reducing summer runoff temperatures which can be important in watersheds with sensitive cold-water fish populations ([https://www.bae.ncsu.edu/extension/ext-publications/water/protecting/ag-588-23-maintaining-permeable-pavements.pdf Hunt] 2011). The temperature reduction effect is greatest when runoff is infiltrated into reservoir layer when underdrains are used. All permeable pavements exhibit cooler summer temperatures than their impervious counterparts. For example, a recent study showed that porous asphalt showed lower nighttime temperatures when compared with materials that have a similar or higher albedo. This was attributed to the insulating properties of porous asphalt due to its high air void content ([http://www.coolrooftoolkit.org/wp-content/uploads/2012/08/Stempihar-et-al-Porous-HMA-UHI-72711.pdf Stempihar] 2011). Pervious concrete and PICP can meet the solar reflectance index (SRI) of 29.
  
==Sustainable Rating Systems==
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==Sustainable rating systems==
 
All permeable pavements support sustainable rating systems such as [http://www.usgbc.org/DisplayPage.aspx?CMSPageID=222 LEED] and others plus sustainable transportation rating systems such as those published by the [http://www.sustainableinfrastructure.org/ Institute for Sustainable Infrastructure] (Envision), [http://www.sustainablehighways.org/ Federal Highway Administration] (INVEST), and the [http://www.greenroads.org/ University of Washington] (Greenroads).
 
All permeable pavements support sustainable rating systems such as [http://www.usgbc.org/DisplayPage.aspx?CMSPageID=222 LEED] and others plus sustainable transportation rating systems such as those published by the [http://www.sustainableinfrastructure.org/ Institute for Sustainable Infrastructure] (Envision), [http://www.sustainablehighways.org/ Federal Highway Administration] (INVEST), and the [http://www.greenroads.org/ University of Washington] (Greenroads).
  
 
==Certification==
 
==Certification==
{{[alert|The MPCA does not endorse any specific product or service, including trainings, workshops, or other similar practices or events|alert-warning}}
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{{alert|The MPCA does not endorse any specific product or service, including trainings, workshops, or other similar practices or events|alert-danger}}
Each of the three permeable pavement types has many options for continuing education and certification for installation providers and designers.
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<p>The Interlocking Concrete Pavement Institute ([http://www.icpi.org/ ICPI]) provides several courses for contractors, including:
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As previously noted, the pervious concrete and [[Glossary|PICP]] industry associations offer education and certification of permeable pavement contractors, i.e., the National Ready Mix Concrete Association ([http://www.nrmca.org/ NRMCA]) and the Interlocking Concrete Pavement Institute ([http://www.icpi.org/ ICPI]). Porous asphalt does not require unique materials and can be installed by most paving equipment. In addition, all plants producing hot-mix asphalt are required to be certified by MnDOT. Industry-trained and experienced supervisory personnel should be required on all jobsites and requirements written into project specifications. A specifications requirement can be contractor submittals demonstrating experience with previous projects.  
*Concrete Paver Installer Course – This course is focused on currently employed individuals in the paver industry who are looking for education, certification, and industry recognition.
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*Commercial Paver Technician Course – This course is intended for foreman and higher-ranking personnel employed by companies that will be installing in the industrial, commercial, institutional, and municipal markets.
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For design professionals, industry and professional associations offer in-person and online continuing education programs on design, construction and maintenance of permeable pavements. Many of these programs are registered with continuing education programs offered for civil engineering professional development hours, the [http://www.aia.org/ American Institute of Architects] and the [http://www.asla.org/ American Society of Landscape Architecture] continuing education systems, and the Green Building Certificate Institute Credential Maintenance Program for [http://new.usgbc.org/leed LEED®] accredited professionals. Designers are encouraged to participate in these programs.
*Advanced Residential Paver Technical Course – This course is designed as an advanced level course that builds upon the Concrete Paver Installer Course.
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*PICP Specialist Course – This course is intended for experience contractors who are presently doing concrete pavement installations and wish to move into the permeable pavement market for residential and/or commercial projects.</p>
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Industry associations provide literature and design software for design professionals. The [http://www.asphaltpavement.org/ National Asphalt Pavement Association] offers “Porous Asphalt Pavements for Stormwater Management, Design, Construction, and Maintenance Guide” (Hansen 2008). The [http://www.asphaltisbest.com/ Minnesota Asphalt Pavement Association] has guidance on their website. The [http://www.pavement.com/ American Concrete Pavement Institute] has design software called PerviousPave for design of pervious concrete pavement. The software can be downloaded from their website. Specifications for the design of pervious concrete are provided by the [http://www.concrete.org/general/home.asp American Concrete Institute] (ACI) in ACI 522.1-08 “Specification for Pervious Concrete Pavement”. A report titled ACI 522R-10 “Report on Pervious Concrete” is also available. ICPI offers a course called “Permeable Interlocking Concrete Pavements” covering design, specifications, construction, and maintenance. ICPI also offers Permeable Design Pro software for PICP structural and hydrologic design.
<p>The ICPI provides a certification for those installers who have successfully completed the two-day Concrete Paver Installer Course and have met the installation experience requirements (at least five projects and 10,000 square feet). Once an installer has received their certification they must complete eight continuing education credits every two years to renew their certification. In addition, the ICPI provides a free online course for design professionals and several design/research documents on permeable pavers. In addition, certified installers have the opportunity to earn designations including the commercial paver technician, PICP specialist and residential paver technician. Each of these designations require the individual to hold a current ICPI concrete paver installer certification, complete the relevant course, pass the relevant exam, and meet the established minimum installation experience. The minimum experience necessary for each designation is 10 projects and 50,000 square feet.</p>
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<p>[http://www.asphaltpavement.org/ The National Asphalt Pavement Association] has produced a manual for the design, construction, and maintenance of porous asphalt pavements. The manual is called “Porous Asphalt Pavements for Stormwater Management, Design, Construction, and Maintenance Guide” (Revised in 2008). The [http://www.asphaltisbest.com/ Minnesota Asphalt Pavement Association] has also provided a draft guidance document on their website for reference. The asphalt contractor should provide proof of prior experience installing porous asphalt. In addition, all plants producing hot-mix asphalt are required to be certified by MnDOT. Porous asphalt does not require special ingredients and can be installed by most paving equipment.</p>
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<noinclude>
<p>The National Ready Mix Concrete Association ([http://www.nrmca.org/ NRMCA]) provides three levels of certification for pervious concrete installers. The three levels are Technician, Installer, and Craftsman. Each level is described in greater detail below:
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==Related articles==
*Technician – The technician level is intended for personnel who are learning the proper techniques of installing pervious concrete and lack the required experience to qualify for the next level. The certification level requires a passing score on the NRMCA Pervious Concrete Contractor Certification Written Examination.
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*[[Overview for permeable pavement]]
*Installer – The installer is the intermediate level and requires a passing score on the NRMCA Pervious Concrete Contractor Certification Written Examination, a performance evaluation by a local sponsoring group, and a minimum of 3 projects with a total area exceeding 10,000 square feet.
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*[[Types of permeable pavement]]
*Craftsman – The craftsman certification is the highest level and reflects a person with advanced knowledge and experience for placing, compacting, finishing, edging, jointing, curing, and protecting pervious concrete. The craftsman level requires an individual to pass the NRMCA Pervious Concrete Contractor Certification Written Examination, possess a current American Concrete Institute (ACI) Flatwork Finisher Technician or Craftsman certification, and either complete a performance evaluation by a Local Sponsoring Group and provide documentation of 1500 hours of work experience constructing pervious concrete or provide documentation of work experience constructing pervious concrete pavements exceeding 3000 hours.</p>
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*[[Design criteria for permeable pavement]]
<p>The NRMCA provides a database of certified pervious concrete craftsman, installers, and technicians and a list of approved Local Sponsoring Groups. In addition, the American Concrete Pavement Institute has created design software called PerviousPave that aids in the design process for pervious concrete pavement. The software can be downloaded from the [http://www.acpa.org/ American Concrete Pavement Association] website. Specifications for the design of pervious concrete are provided by the American Concrete Institute [http://www.concrete.org/general/home.asp (ACI)] in ACI 522.1-08 “Specification for Pervious Concrete Pavement”. A report titled ACI 522R-10 “Report on Pervious Concrete” is also an available reference.</p>
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*[[Construction specifications for permeable pavement]]
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<!--[[Construction observations for permeable pavement]]-->
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*[[Assessing the performance of permeable pavement]]
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*[[Operation and maintenance of permeable pavement]]
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*[[Calculating credits for permeable pavement]]
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<!--[[Cost-benefit considerations for permeable pavement]]-->
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*[[Case studies for permeable pavement]]
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*[[Green Infrastructure benefits of permeable pavement]]
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*[[Summary of permit requirements for infiltration]]
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*[[Permeable pavement photo gallery]]
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*[[Additional considerations for permeable pavement]]
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*[[Links for permeable pavement]]
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<!--*[[External resources for permeable pavement]]-->
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*[[References for permeable pavement]]
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<!--*[[Supporting material for permeable pavement]]-->
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*[[Fact sheets for permeable pavement]]
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*[[Requirements, recommendations and information for using permeable pavement BMPs in the MIDS calculator]]
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<!--#[[Permeable pavement credits]]-->
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[https://stormwater.pca.state.mn.us/index.php?title=Permeable_pavement Permeable pavement main page]
  
[[category:BMP]]
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[[category:Permeable pavement]]
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</noinclude>

Revision as of 18:37, 25 September 2018

Green Infrastructure: Permeable pavement can be an important tool for retention and detention of stormwater runoff. Permeable pavement may provide additional benefits, including reducing the need for de-icing chemicals, and providing a durable and aesthetically pleasing surface.

Compliance with the Americans with Disabilities Act (ADA)

All permeable pavements are ADA compliant. PICP is compliant if designs are used with joints less than ½ inch wide.

Groundwater protection and underground injection control permits

The Safe Drinking Water Act regulates the infiltration of stormwater in certain situations pursuant to the Underground Injection Control (UIC) Program, which is administered either by the US EPA or a delegated state groundwater protection agency. The US EPA (USEPA 2008) determined that permeable pavement installations are not classified as Class V injection wells since they are always wider than they are deep. There may be an exception in karst terrain if the discharge from permeable pavement is directed to an improved sinkhole, although this would be uncommon.

Air and runoff temperature

Permeable pavement appears to have some value in reducing summer runoff temperatures which can be important in watersheds with sensitive cold-water fish populations (Hunt 2011). The temperature reduction effect is greatest when runoff is infiltrated into reservoir layer when underdrains are used. All permeable pavements exhibit cooler summer temperatures than their impervious counterparts. For example, a recent study showed that porous asphalt showed lower nighttime temperatures when compared with materials that have a similar or higher albedo. This was attributed to the insulating properties of porous asphalt due to its high air void content (Stempihar 2011). Pervious concrete and PICP can meet the solar reflectance index (SRI) of 29.

Sustainable rating systems

All permeable pavements support sustainable rating systems such as LEED and others plus sustainable transportation rating systems such as those published by the Institute for Sustainable Infrastructure (Envision), Federal Highway Administration (INVEST), and the University of Washington (Greenroads).

Certification

Warning: The MPCA does not endorse any specific product or service, including trainings, workshops, or other similar practices or events

As previously noted, the pervious concrete and PICP industry associations offer education and certification of permeable pavement contractors, i.e., the National Ready Mix Concrete Association (NRMCA) and the Interlocking Concrete Pavement Institute (ICPI). Porous asphalt does not require unique materials and can be installed by most paving equipment. In addition, all plants producing hot-mix asphalt are required to be certified by MnDOT. Industry-trained and experienced supervisory personnel should be required on all jobsites and requirements written into project specifications. A specifications requirement can be contractor submittals demonstrating experience with previous projects.

For design professionals, industry and professional associations offer in-person and online continuing education programs on design, construction and maintenance of permeable pavements. Many of these programs are registered with continuing education programs offered for civil engineering professional development hours, the American Institute of Architects and the American Society of Landscape Architecture continuing education systems, and the Green Building Certificate Institute Credential Maintenance Program for LEED® accredited professionals. Designers are encouraged to participate in these programs.

Industry associations provide literature and design software for design professionals. The National Asphalt Pavement Association offers “Porous Asphalt Pavements for Stormwater Management, Design, Construction, and Maintenance Guide” (Hansen 2008). The Minnesota Asphalt Pavement Association has guidance on their website. The American Concrete Pavement Institute has design software called PerviousPave for design of pervious concrete pavement. The software can be downloaded from their website. Specifications for the design of pervious concrete are provided by the American Concrete Institute (ACI) in ACI 522.1-08 “Specification for Pervious Concrete Pavement”. A report titled ACI 522R-10 “Report on Pervious Concrete” is also available. ICPI offers a course called “Permeable Interlocking Concrete Pavements” covering design, specifications, construction, and maintenance. ICPI also offers Permeable Design Pro software for PICP structural and hydrologic design.


Related articles

Permeable pavement main page