HHSC PCS is seeking competitive bids to establish contract(s) for a customized 8890 Gas Chromatograph (GC) System with purge and trap for 524.2. GCMS system with hydrogen carrier gas capabilities, helium gas conservation, 100 psi split splitless inlet, mass spectrometer and interface with scroll roughing pump (oil free), start stop to remote instruments to protect the quality of drinking water for the public in compliance with the Safe Drinking Water Act .