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EPA's Final 2017 Construction General Permit

In February 2017, the U.S. Environmental Protection Agency’s National Pollutant Discharge Elimination System (NPDES) Construction General Permit (CGP) will become effective. This session will provide background on construction stormwater regulations, discuss changes in the 2017 CGP, and review the process for obtaining coverage under the new permit.
Date:
February 01, 2016
Member Price:
$0.00
Nonmember Price:
$50.00
Available for Immediate Download
↑/↓ Full Details


Evaluation of Inlet Protection Practices using Large-Scale Testing Techniques

This technical presentation will showcase current ongoing research and large-scale testing efforts focused on improving existing storm drain inlet protection practices. The study, being conducted at the Auburn University Erosion and Sediment Control Testing Facility (AU-ESCTF), includes the investigation of typical roadway median inlet protection practices (i.e., aggregate barriers, sand bag barriers, silt fence barriers, wattle barriers, and manufactured practices) for protecting drop inlets during construction activities. Effective inlet protection practice needs, developed testing procedures, data collection practices, performance characteristics, and results will be discussed.
Date:
May 01, 2015
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
↑/↓ Full Details


Got Stormwater Compliance issues? What now?

Are you constantly left with a headache after receiving another violation and/or fine from the Regional Water Quality Control Board? Is your stormwater program lacking efficiency and accountability? Let us walk you through how we have successfully built and managed stormwater compliance programs across California, and outline principals that can be applied across the country. We’ll outline the critical components required for an efficient and compliant program, including how to tackle violations and hefty fines if they come knocking on your door.
Date:
September 01, 2015
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
↑/↓ Full Details




Hydromodification - Causes, Effects, and Mitigation

As professionals in erosion and sediment control we are often focused on on-site erosion and sediment controls. When considering changes in runoff rates and volumes, however, it is essential to look downstream of the site to understand how changes in hydrology may adversely affect downstream receiving waters from the standpoints of degradation, aggradation, and aquatic habitat. This presentation will focus on the causes and effects of hydromodification, the roles of peak flow rates and runoff/streamflow volume, and the fundamentals of mitigating these effects. The presentation will provide examples of strategies to mitigate impacts of hydromodofication including the importance of stormwater volume reduction, control of frequently occurring events that form channels, and bed and bank stabilization.
Date:
April 01, 2016
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
↑/↓ Full Details


IECA Annual Conference and Expo 2019 - Attendee Registration

http://www.ieca.org/images/Events/2019_AnnualConferenceHeader_2550x675.jpg
Description: IECA's annual premier educational event for the erosion, sediment control and stormwater industry.The IECA Annual Conference and Expo combines intense, full and half day training courses with topic-focused technical sessions and the largest expo of its kind.
Start Date:
Tuesday, February 19, 2019
End Date:
Friday, February 22, 2019
Location:
Colorado Convention Center
700 14th St
Denver, CO 80202
UNITED STATES


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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Introduction to Low Impact Development

This course has been developed to introduce participants to the concept of Low Impact Development (LID). It is intended for developers, consultants, municipal staff, landowners or anyone looking to gain a general knowledge of sustainable stormwater planning and practices. The course is comprised of four modules, the first discusses the evolution of stormwater management and the progression to LID. The next module introduces the principles of LID and non-structural site design strategies. Eleven LID practices are examined, providing general descriptions, special considerations and an overview of typical stormwater performance expectations in the third module. The final module explores the financial benefits of LID and introduces useful guides and tools that can be used to determine the costs of an LID project.
Date:
May 01, 2016
Member Price:
$40.00
Nonmember Price:
$50.00
Available for Immediate Download
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Lessons in LID Construction

Low Impact Development (LID), an innovative stormwater management approach that treats, infiltrates, filters, and retains runoff at the source, is quickly becoming the new norm in Ontario. Construction of LID practices involves techniques and specifications that differ from traditional stormwater management construction practices. Failing to follow proper LID construction methods can result in barren bioretention landscapes, clogged infiltration practices, uneven permeable pavements, and ultimately costly post-construction repairs.
Date:
June 01, 2017
Member Price:
$50.00
Nonmember Price:
$65.00
Available for Immediate Download
↑/↓ Full Details