Water Quality Surveillance and Response

Customer Complaint Surveillance Resources

These products support the design and implementation of Customer Complaint Surveillance (CCS), a component of a Surveillance and Response System (SRS).

Threshold Analysis Tool(4 pp, 4 MB) A software tool used to develop alert thresholds for customer water quality complaints.
Alarm Estimation Tool(1 pg, 269 K) A spreadsheet tool used to estimate the number of CCS alerts generated at a given alert threshold.

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Water Security Initiative (WSI) Evaluation of the Customer Complaint Surveillance Component of the Cincinnati Contamination Warning System Pilot (PDF)(24 pp, 2 MB)
Presents the results of a detailed technical evaluation of the Customer Complaint Surveillance component of the Cincinnati Contamination Warning System pilot. This component monitors water quality complaint data to identify abnormally high volumes or spatial clustering of complaints that may be indicative of drinking water contamination.