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Halcrow Buckets

Halcrow Buckets

Halcrow Buckets

(OP)
I am looking for some information on Halcrow Buckets.  I monitoring groundwater levels in an unstable slope (slope is undergoing slow downslope creep).  I would like to get maximum water level readings but the standpipes are currently read manually once a month in the summer/fall and once a week in the winter/spring.  The risk of failure and subsequent damage at the site is so low that continuous monitoring with an electronic logger is not warranted.  In my search for alternatives, I came across some references to Halcrow buckets - small, plastic tubes tied together at a constant interval (e.g., 500 mm) and suspended in a standpipe.  Can anyone comment on the performance of Halcrow buckets and/or provide the name of a manufacturer or distributor of the product?

Thanks!

RE: Halcrow Buckets

Roctest (www.roctest.com) makes all sorts of water level measurement devices for slope projects.  If they aren't familiar with it, I'd be surprised.  I used vibrating wire piezometers at a landfill site once (worked like a charm).  Halcrow buckets sounds like a bubbler-type depth gage (I've never used one), I think they work by pressurizing the tube to see how much pressure you need to overcome the water head in the piezometer.  Vaguely, I seem to recall U.S. EPA discussing them in one of their field manuals.

If you find out what a Halcrow bucket is, please let us know.

Thanks

Jeff

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