City of Grand Ledge issued the following announcement on Mar 30.
If you see a "Hyrdocorp" vehicle at any number of our GL businesses, don't worry- they are contracted by the City. Hydrocorp is contracted by the City to manage the cross-connection control program.
They inspect backflow prevention devices for proper installation and function, for commercial properties.
Original source can be found here.
Source: City of Grand Ledge
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