QA managers and other personnel involved in Change Control programs, Validation managers and personnel, QA managers and Regulatory Affairs personnel involved in defending water system operations and quality data to FDA and EMEA inspectors and outside auditors, Utility operators and their managers involved in maintaining and sanitizing water systems, QC managers and personnel involved in sampling, testing, and trending chem and micro data from water systems, QA managers and personnel involved in investigations of excursions and preparing CAPAs and Consultants.