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Don’t forget the drain

An excavation on my site unexpectedly flooded the other week. It was to connect into an existing storm water culvert at about 8m below surface level, thankfully no-one was in it at the time.

About a week later, see location of photo above

This could have easily been prevented by pumping out the water in the storm water line. It was simply an oversight by the engineers planning it.

As the ground water is contaminated (heavy metals among other things) and this water counts as waste water from a construction site this is also a reportable environmental incident.

Guess the lesson here is not to forget about what you have put in the ground… and maybe check your drains.

Categories: Uncategorized
  1. Richard Farmer's avatar
    Richard Farmer
    30/06/2020 at 11:10 pm

    Why was the bottom end capped? To prevent soil entering the drain prioir to connection? Surely the latter would not have been water tight? Was it on a drawing or just a good idea someone had? What was the chain of events that lead to this near miss? How should the risk have been picked up and addressed under CDM? Lovely piece for CPR as long as you know the answers.

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