Cathodic Protection and AC Mitigation Design, Engineering and Project Management Installation and Commissioning CP System Audits Maintenance and Troubleshooting Field Surveys, including DCVG/PCM/Stray Current Condition AssessmentCoating anomalies are pin pointed and graded according to their relative sizes by means of sophisticated non-intrusive DC measurement techniques.Electrochemical, microbial and electrolytic parameters are evaluated at each site.Each coating defect is graded in terms of its present and past corrosion risk.The grading system is then calibrated by physical inspection.