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Stormwater Alarm System

HydroTerra was engaged by John Holland to develop a stormwater alarm system to provide timely warnings of rising water levels for workers in underground services at the site. The system provided water level monitoring across three manholes, was solar powered and provided both visual, siren, and cellular alarms.


The system was designed to be:

1) demountable (and has since been successfully relocated)

2) have a small on-site footprint

3) enhanced safety through alarm redundancy

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