Sheetflow Erosion Control Erosion Control for the CESCL

November 24, 2020

Creative Slop Bin

Video: David Jenkins-Sheetflow Erosion Control

I call it a creative slop bin but really it’s an old loading dock. We had to do a storm system repair and needed a place close to the work to hold the vactor slurry temporarily. The catch basin grate has plastic under it.

November 23, 2020

Erosion Controls in Olympic National Park

Video: David Jenkins-Sheetflow Erosion Contr

Recently, I stopped to check out erosion controls on the way to the Staircase in Olympic National Park.

November 20, 2020

Bubbling Crude

Photo: David Jenkins-Sheetflow Erosion Control

This “bubbling crude” could be from an episode of ” The Beverly Hillbillies”, but it isn’t. This is oil from a leaking underground storage tank we found on a Superfund cleanup project.

November 19, 2020

A Rare Beast

Photo: David Jenkins-Sheetflow Erosion Control

Here is a rare beast: a vacuum sweeper with working spray nozzles and nothing dripping out of the back.

This has been such a problem that I included the following language in my erosion control specification:

1.) Vacuum sweepers shall have on-board water spray systems operating at all times.  

2.) Sweeper systems shall function per manufacturer specifications including, but not limited to, water spray systems, blowers, vacuum nozzles, hoses, debris hopper, hydraulics and electrical.

3.) At no time shall debris hopper seals leak debris and/or liquids

November 18, 2020

The Problem with Hosing Tires

Photo: David Jenkins-Sheetflow Erosion Control
Photo: David Jenkins-Sheetflow Erosion Control

What is the problem with hosing tires? Water-specifically “Process Water”. Water that is used in a process, like hosing tires, is classified as process water and must be dealt with as though it is contaminated; because it is, with oil, grease, and various metals. So, if you are going to hose tires, you must plan to collect and dispose of the water legally. Legal disposal means a special processor for treatment and discharge or sanitary sewer.

November 16, 2020

A Final Inspection

I am conducting a final inspection of erosion controls at a former staging area. Some of the best management practices shown are: silt fence, straw wattles, and hydroseed.

Video: David Jenkins-Sheetflow Erosion Control

October 28, 2020

Gas Can in Trash Can

Photo: David Jenkins-Sheetflow Erosion Control

Does this gas can in a trash can meet the requirements of secondary containment? I would say yes because the trash can has more volume than the gas can.

October 27, 2020

Dusty Spalls

Video: David Jenkins-Sheetflow Erosion Control

Dusty Spalls-sounds like the name of a cowboy in an old “B” western film. These quarry spalls came with enough crushed rock dust to create a fugitive dust cloud when dropped into a “skip” box.

October 26, 2020

Temporary Boot Wash

We were excavating a riverbank next to a former Superfund cleanup site and we hit a layer of black soil. I stopped the work and called out an Environmental Agent (EA). The EA took samples of the soil and sent them to a lab for analysis. I had the contractor rope off the area and build a temporary boot wash at the site entrance. It turned out the soil was clean.

October 23, 2020

Small Oil Spill

I usually require a contractor to clean up a small oil spill like this. We will remove all of the soil on this project and dispose it as mildly contaminated; I let it go this time.

Video: David Jenkins-Sheetflow Erosion Control
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