Field-erected welded steel storage tanks from Fisher Tank Company provide safe, reliable and economical storage and process solutions for wastewater treatment facilities. Services include in-house design engineering, custom fabrication and turnkey construction for tanks, digesters, clarifiers, hoppers, bins and silos. Options such as ladders, handrails, agitator bridges, linings, domed roofs and tank covers are available. 610/494-7200; www.fishertank.com.