Shannon's complete technical service package includes 30, 60 and 90 day corrosion coupon studies and quarterly monitoring of distribution water samples for pH, alkalinity, hardness, TDS, chlorides, nitrates, sulfates, total iron, dissolved iron, lead, copper, manganese, zinc and a complete phosphate profile.Shannon's technical support department is staffed by potable water professionals and engineers. Assisted by a state-of-the-art computer modeling and inhibitor recommendation program, they work in conjunction with Shannon's laboratory personnel top design the most effective, cost efficient treatment program for each cust