4. Aqua Water Supply Corp., which is seeking to expand from water to wastewater service in fast-growth Bastrop County near Austin spent up to $375,000 on 14 lobbyists. Two other water interests spent up to $230,000 apiece. Guitar Holding Co. is a big landowner in Hudspeth County, where some speculators want to harvest water to sell to El Paso. Politically connected WaterTexas is a private company cutting big water deals in Central Texas.