Specifications include, but are not limited to: Provide on-call, as needed pumping, hauling and disposal of wastewater and solid waste (sludge) from chemical holding ponds located at multiple sites within the Hampton Roads District. The Contractor shall provide all labor, equipment and supervision to pump, haul and dispose of chloride-contaminated water from holding ponds. Pumping will be required when VDOT has determined the holding ponds are a certain level of salinity and/or have surpassed storage capacity. Total gallon pumped and frequency of pumping will vary per Area Headquarters location and may depend on rainfall and frequency of snow removal operations. The Contractor may be required to pump all sites within a short time frame or pumping may be infrequent.