Inorganic ground-water chemistry at an industrial site near Oil City and Onondaga Lake, Syracuse, NY

Urban land redevelopment is proposed for Oil City, Syracuse, New York.;Five ground-water chemical types were identified beneath a site within Oil City. Two types are naturally produced through mineral dissolution. The remaining three are the result of the presence and degradation of organic contaminants.;Two shallow fresh water (20 feet thick), local-order ground-water flow systems are superimposed upon a brackish, intermediate-order flow system (;Oil city and Onondaga Lake are positioned on a regional ground-water discharge zone. The resultant brine discharge contributes to the salinity of Onondaga Lake.;Oil city was formerly a natural saline swamp where brines discharged to the ground surface. Overpumping of the brine resource resulted in superposition of fresh and brackish ground-water flow systems above the brine.