Sheetflow Erosion and Sediment Control

July 3, 2020

BMP Graveyard-Sand Bags

Photo: David Jenkins

Ten year old sand bags; like we need even more micro-plastic laying around.

July 2, 2020

Placing Amendment 16 Center Runway

Video: David Jenkins

The compost soil amendment was recycled yard waste. It was placed, tilled 8 to 12 inches into the existing soil, then trackwalked. Bonded fiber matrix was applied with seed and fertilizer. It was placed at the end of summer so we watered it with a water truck fitted with an adjustable fire nozzle.

July 1, 2020

Debris Stockpile

Photo: David Jenkins

I like how the contractor built a contained area to temporarily stockpile removed asphalt and other construction debris. They used jersey barriers with cold mix asphalt along the base to contain the debris and rainwater.

June 30, 2020

Sand Bag Berm Around Catch Basin

Photo: David Jenkins

The down side to using sandbags is that you can’t get a good seal and they leak. The idea behind this is that water ponds and some of the sediment settles out. With the leakage, little settling can occur. The catch basin insert will catch some of the sediment but since we are regulated on turbidity in Washington, neither BMP cuts turbidity low enough to meet the compliance standard. Our contract specifications require that discharges not exceed 25 Nephelometric Turbidity Units (NTUs).

June 29, 2020

BMP Graveyard-Geotextile

photo: David Jenkins

Ten year old geotextile fabric left in the environment, more micro-plastic.

June 26, 2020

Native Plant Pollinator Meadow-Part 2

In March, I posted a photo of my newly seeded native plant pollinator meadow. These photos were taken this morning. Special thanks to Northwest Meadowscapes and the Kitsap Conservation District for the seeds, instructions and assistance.

Photo: David Jenkins
Photo: David Jenkins
Photo: David Jenkins
Photo: David Jenkins
Photo: David Jenkins

June 25, 2020

BMP Graveyard-Sandbags

photo: David Jenkins

Ten year old sand bags and micro-plastic left in the environment.

June 24, 2020

Silt Fence and Trackout Fail Part 2

This is a follow up to Silt Fence and Trackout Fail post from April 6, 2020. Same old !@#$, different month.

Photo: David Jenkins
Photo: David Jenkins

June 23, 2020

Western Region Climate Center-WRCC

This is just one of many things you can find at the Western Region Climate Center website. I use this graph all of the time to show people the best time to do earthwork. It looks great in a SWPPP. These are available for hundreds of weather stations throughout the western United States.

June 22, 2020

BMP Graveyard-Coir Blanket

Photo: David Jenkins

Heavy duty coir coconut mesh blanket left in the sun for five years. It is still functioning as soil cover but has no strength left and is easy to pull apart.

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