Sheetflow

December 31, 2010

Construction Erosion Control Inspection-Part 1

Filed under: Video — Sheetflow @ 7:00 am

Inspecting a small construction project staging area using the following best management practices: silt fence, plastic covering, stabilized construction entrance, straw wattle, straw mulch and asphalt berm.

December 24, 2010

Paying for TESC

Filed under: Article — Sheetflow @ 2:49 am

The Best Way to Measure and Pay for Erosion Control in Public Works Contracts

It is a big mistake to make temporary erosion and sediment an “incidental” item in a public works contract. Anything that can be measured should be and set up as a Unit Price item. Planning and Implementation can be lump sum but measurement and payment must be clearly specified. Force Account is set up for unforeseen conditions; the amount is set by the owner so that everyone bids the same number. Make clear at the pre-bid meeting that the Lump Sum bid for planning and implementation covers lots of stuff and they need to bid accordingly. Here is an example of the best way to pay: (more…)

December 17, 2010

Inspecting-Check Dams Need Low Center Point

Filed under: Video — Sheetflow @ 2:48 am

Check dams need to be installed so that the center point of the dam is at least 6 to 8 inches lower than the outside edge; 12 inches in areas where intense rainfall occurs. If the center point is higher than the outer edges, water will run around the dam and erode the side slopes of the ditch, causing erosion. If the ditch is shallow and you are using triangular silt dikes, you might need to add sand bags to create a center point that is low.

December 10, 2010

EPA to Reconsider Key Aspect of Construction Stormwater Rule

Filed under: Web Site — Sheetflow @ 1:19 pm

Published on Marten Law (http://www.martenlaw.com)

September 30, 2010
Meline MacCurdy
Russell Prugh

Nearly a year after finalizing its construction stormwater rule, in response to objections from industry groups, EPA has conceded that the controversial numeric turbidity limit in the rule is flawed. EPA issued the final construction stormwater effluent guidelines rule[1] (the “Rule”) in December 2009, for the first time establishing a numeric limit on the turbidity of stormwater discharges from large construction sites and requiring monitoring to ensure compliance with the numeric limit. The Rule also required nearly all construction sites that obtain stormwater permits after February 1, 2010 to implement a range of erosion and sediment controls and pollution prevention measures. EPA’s Rule elicited immediate criticism, including a lawsuit brought by industry groups in the Seventh Circuit,[2] and a petition for administrative review by the Small Business Administration (“SBA”) Office of Advocacy. A primary element of these challenges was the claim that EPA’s numeric turbidity limit is flawed. (more…)

December 5, 2010

NPDES Construction Permits-Kitsap County, Washington, November 2010

Filed under: Map — Sheetflow @ 11:00 pm

This is most of the current NPDES Construction General Stormwater Permits open in Kitsap County, Washington. The data is geocoded from The Washington State Department of Ecology Water Quality Permit Life Cycle System (WPLCS) database and is only as accurate as the data entered into that database. This website makes no actual or implied guarantee of its accuracy.



NPDES Construction Permits for Kitsap County, Washington for November2010











December 3, 2010

Original WSDOT Erosion Control Web Pages

Filed under: Web Site — Sheetflow @ 12:52 am

The Washington State Department of Transportation (WSDOT) began their Construction Erosion and Sediment Control program in 1996 when they hired their first State-wide Erosion Control Coordinator, whose responsibility was develop and implement a contractor certification program, write and publish contract specifications, and provide state-wide, consistent, technical expertise. These are the early web pages developed for the program:

WSDOT Erosion Control Web Page 1997

WSDOT Erosion Control Web Page 1998

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