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Implementing a SWPPP - Easy, right?

The design is complete, the permits have been obtained, and contracts are in place for contractors. It's time to get construction started! What could possibly go wrong? A SWPPP, stormwater pollution prevention plan, is a best guess about how the construction site will begin, progress and finish based upon the information that the design has before construction. However, it is rare that construction progresses as the designer envisioned. When implementing a SWPPP, expect to encounter the following: - The contractor will have a different - and possibly better - way of grading the site, along with a different construction sequence. - The unforeseen will be uncovered and it will impact the construction schedule. - Not all parties on the construction site will agree on E&SC or stormwater management for the site. When implementing the SWPPP, the inspector/site manager must adapt to these issues while still meeting the intent of all permits. SWPPP modifications. There is no perfect SWPPP. All SWPPPs will need revision and modification during construction. Some states do not require that plans be resubmitted when modifications are required. Other states do require plan submittal and approval. Know your state's requirements - and any professional requirements. In most states, professional engineers are the only people licensed to design pipes and embankments (think sediment basins and culverts). The SWPPP must reflect what's on the ground and vice versa. For example, when silt fence or check dams are removed when they are no longer needed, the SWPPP should be modified to show that these measures have been removed. Inspection documentation should also indicate that the measures have been removed and why they were removed. Together, the modified SWPPP and inspection documentation should clearly tell the story of the site conditions at the time of the inspections. Take photos of the site as well to confirm site conditions. Documentation. As the SWPPP is revised or modified, document the changes on the SWPPP sheets, in inspection reports and with photos. Documentation is critical to show compliance. The construction general permit allows time for a contractor/developer to respond to problems found on a construction site, and if the problems are resolved within that timeframe, the site is in compliance. Note that some states have additional regulations governing construction sites and off-site sedimentation can be considered a violation of the regulation, regardless of storm size. Besides SWPPP modification and inspection reports, a site manager/inspector must also keep good documentation of rain events. The Construction General Permit requires that measures be designed for the 2yr, 24hr rain event. To determine the return interval for each storm, document the time a storm started and ended and the depth of rain. That information can be compared to rainfall information provided on NOAA's Atlas 14 Point Precipitation Frequency Estimates website (https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_map_cont.html) to determine the storm's return interval. Site managers/inspectors should use the rainfall data to make decisions about the failed measures. If measures failed in a storm that exceeded the 2 year storm equivalent intensity, the measures were adequate and should be reinstalled. If measures failed in a storm that was less than or equal to the 2 year storm event, the measures should be upgraded. can be compared to the rain fall information on NOAA's Atlas 13 site to determine the equivalent intensity storm. As a final good practice on a construction site, provide feedback to the designer about the site: what worked well, what didn't work well. If that information is not conveyed to the designer, the same issues may occur on other construction sites.
Date:
June 01, 2018
Member Price:
$90.00
Nonmember Price:
$120.00
Available for Immediate Download
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Improvements in Silt Fence Installations Determined Through

Silt fence performance, when used as a perimeter control, can be affected by a wide variety of factors (i.e., material properties, installation techniques, and site characteristics). The ability to evaluate differences in such factors provides a corridor for improvement that would likely go unnoticed in uncontrolled field conditions. The sediment barrier testing apparatus at the Auburn University Erosion and Sediment Control Test Facility (AU-ESCTF) has shown that by consistently replicating factors such as: topography, flow rate, and sediment loading; performance evaluations can be conducted on various types of sediment barriers and installation methods. This presentation will discuss eight different installation configurations tested on a non-woven, wire backed reinforced silt fence to determine performance as it relates to structural integrity, sediment retention, and water quality.
Date:
September 01, 2018
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Improving Infiltration & Vegetation in Post-Cons

This webinar will highlight treatment technologies that can be implemented in the construction industry to manage turbidity from dewatering operations. Dewatering methods are briefly introduced; however, the course focuses on best available technologies to treat and polish pumped effluent. Participants will be exposed to a decision matrix that assists in identifying the appropriate treatment for a site specific operation. Upon selection of the treatment, basic design elements are presented for consideration. The webinar targets a broad based audience who can use the information provided as a foundation to then independently research a specific treatment technology in more detail.
Date:
December 01, 2015
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Introduction to Erosion and Sediment Control

This course has been developed to introduce participants to the concepts of Erosion and Sediment Control (ESC). It is intended for contractors, developers, consultants, municipal staff, landowners or anyone looking to gain a general knowledge of erosion and sediment control concepts and best management practices. The course is comprised of eight modules and discusses the potential impacts of construction activities, ESC fundamentals, erosion control practices, sediment control practices, in-water and near water works, pollution prevention, winter preparedness and legislation.
Date:
May 01, 2016
Member Price:
$75.00
Nonmember Price:
$100.00
Available for Immediate Download
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Large-Scale Performance Enhancement Study of Sediment Basins

This technical presentation will discuss research results of large-scale testing efforts focused on developing technologies to provide improved performance of sediment basins. The study, conducted at the Auburn University - Erosion and Sediment Control Testing Facility (AU-ESCTF), includes the investigation of traditional and advanced passive treatment using a lamella-based high-rate settling plate system. Testing procedures, data collection, performance characteristics, and results of the study will be discussed.
Date:
October 01, 2016
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Lessons Learned from 46,000 ESC Inspections

Every day, 1,000's of construction site erosion and sediment control inspections are recorded by public and private inspectors across the country. Wouldn't it be helpful to compile and analyze the results of those inspections? This discussion summarizes analysis of inspection data recorded in over 46,000 construction site erosion and sediment control inspections on residential, commercial, municipal and large grading projects over a period of more than eight years.
Date:
March 01, 2016
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Natural Gas Pipelines

Linear projects, especially natural gas pipelines, present many unique construction and restoration challenges. Additional constraints such as environmental conditions, cultural resources, threatened and endangered species, property owner agreements, right of way access, waterbodies, road crossings and Town/County/State Boundaries further compound the project design, pipeline location and existing resources effected. This workshop presents several examples of linear construction and common problems associated with pipeline construction and restoration. These examples will be followed by creative solutions and out of the box thinking that have yielded successful restoration and compliant results for multiple projects.
Date:
May 01, 2014
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Plant Selection for Erosion and Sediment Control

Ever struggle with selecting plant materials specific to erosion and sediment control? What's best; seed or rooted stock, tap or fibrous roots, is more seed better? This course will review the different characteristics of plants and provide answers to these and more questions. It will provide guidance in selecting the best species and plant material types for a specific erosion control, sediment control, or wind stabilization application. Don't miss this discussion on a topic important to anyone who uses plants to stabilize disturbed soils.
Date:
July 01, 2012
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
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Polymers for Construction Site Erosion and Sediment Control

This course has been developed to familiarize participants with the concepts of polymers and how they can be used for Erosion and Sediment Control (ESC) on construction sites. The course is intended for developers, consultants, municipalities, landowners or anyone looking to learn about polymers and apply them for ESC. This course consists of six modules that discuss the basic concepts of polymers, soil stabilization with anionic polyacrylamide (PAM), PAM based stormwater clarification applications, additional PAM enhanced sediment controls, PAM assisted pond dredging, and anionic PAM application guidance for urban construction.
Date:
May 01, 2016
Member Price:
$75.00
Nonmember Price:
$100.00
Available for Immediate Download
↑/↓ Full Details