State DOT

As all of us know, the ability to use process water at a concrete plant is looked upon differently by state DOT’s. As an example, California’s DOT (Caltrans) allows the use of process water up to a specific gravity of 1.04 in some state mix designs while my home State Pennsylvania, along with several other states, bans its use entirely. Picture courtesy of WADOT via Flicker The USEPA has laws that prohibit the discharge of concrete wash out water into our waterways without proper treatment and for good reason. On the other hand, a majority of states won’t allow its use. So, you can’t discharge untreated process water AND you cannot use it in state work. It can be very frustrating to concrete producers whose…

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