Chemically Machining the New York Throughway

One of my responsibilities involves the proper disposal of waste etchant material. We dispose of roughly 70,000 gallons or almost 400 tons of ferric chloride annually. Both our fresh and waste etchant are transported in rubber lined tanker trucks. I think we are like most companies when it comes to hazardous waste. We are looking constantly for the least expensive but proper method of disposal. Our experience has been that a hazardous waste company will submit a bid below our current disposal cost to attract our business. Then within several months the price increases to at least our original cost.