Sheetflow Erosion Control Erosion Control for the CESCL

October 5, 2020

Dirty Rock

If you use dirty rock for the stabilized construction entrance you are going to have sediment trackout.

Video: David Jenkins

August 24, 2020

Construction Access with Steel Plates

We built a construction access with steel plates across this stormwater swale. Then we laid compost socks and straw wattles along side of the eco blocks placed along the edges.

The adjacent parking lot drains into the swale and must be protected from dirty construction stormwater discharges.

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 18, 2020

Rock Construction Entrance

Photo: David Jenkins
Photo: David Jenkins

You can’t ask too much of a rock construction entrance. We installed this according to the state stormwater manual. You have to keep tires clean or you will get trackout.

May 28, 2020

Prevented Trackout

Photo: David Jenkins

We prevented trackout by placing grizzlies from the road back into the site. Truck drivers backed up to the steel plate near the excavator and dumped their loads. The excavator operator moved the material into the proper piles. The truck tires came in clean, stayed clean on the grizzlies and left clean. With thought and planning, we didn’t need to install a tire wash.

May 27, 2020

Preventable Trackout

Photo: David Jenkins

This trackout was preventable. Asphalt was removed by the contractor to work on the new building foundation; the driveway asphalt was left in place, which is good. Gravel base course was delivered to be placed under the concrete slab.

Instead of backing all of the way into the site, over wet dirt, the trucks could have stayed on the asphalt driveway to unload. Site equipment could have been used to move the gravel.

The contractor could also have dumped gravel next to the asphalt, then graded it back into the site to provide a construction access into the site. In this way, the delivery truck could have stayed on gravel rather than driving on dirt.

While this is not a lot of dirt on the road, it does add up and is a magnet for inspectors and regulators to visit the site.

February 26, 2020

Construction Entrance Fail

Construction Entrance Fail Photo: IG:freudianswppps

Another construction entrance fail. Vehicles drive through the Soaker tire wash, over some rock, then over dirt and sand, defeating the purpose of the tire wash. This exit from the tire wash needs to be rock or asphalt to the street. Disclaimer: I do not promote any products or suppliers.

February 25, 2020

Construction Erosion Inspection-Turbid Discharge

6000 NTUs Photo: David Jenkins

My construction erosion inspection turned up a turbid discharge. A little bit of sediment track out each day builds up. The contractor was vacuum sweeping this area on a regular basis but the first rain shows how effective that was. I measured this discharge at 6000 nephelometric turbidity units (NTUs) using an old Hach 2100P turbidimeter. This meter only reads up to 1000 NTUs, so I had to dilute the sample 3 times to determine the actual reading.

February 21, 2020

Sediment Track out-I’ve had Enough

Another day, another random drive by construction erosion inspection. This sediment track out is an ongoing issue and remains unresolved and i’ve had enough.  I issued a Non-Conformance Report stating that the construction entrance/exit will remain closed permanently unless a solution is found and implemented.

Photo: David Jenkins
video: David Jenkins

February 20, 2020

Just a Little Trackout

Video: David Jenkins

Just a little trackout over time becomes a water quality non-compliance issue.

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