The contract will include power washing and application of water repellant to 140,000 square feet of concrete decking on the primary sedimentation tanks. This work is required to protect the concrete from water absorption, increasing the concrete’s resistance to freeze and thaw cycles and overall longevity. The concrete decking was previously sealed with water repellent in 2005 and 2013.  The work will also include small quantities of concrete repair (spall repair of  concrete decking and repair of concrete columns), expansion joint repair, and concrete crack repair.