Advanced Process Control & Corrosion Management
This guide builds on Class I fundamentals for operators pursuing Connecticut Water Treatment Class II, III, or IV certification (RCSA 25-32-9), where exam coverage shifts heavily toward corrosion control, iron/manganese treatment, and integrated process math.
Corrosion Control
Connecticut systems draw from both reservoir sources (e.g. the Barkhamsted/Nepaug system) and groundwater aquifers, both of which can be corrosive to distribution piping depending on pH, alkalinity, and dissolved oxygen. Operators at Class II+ are expected to interpret the Langelier Saturation Index (LSI) and understand corrosion-control treatment options - pH/alkalinity adjustment, orthophosphate or polyphosphate addition, and calcium carbonate stabilization - required under the federal Lead and Copper Rule when a system exceeds the lead or copper action l