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.
Evaluation of the Customer Complaint Surveillance Component of the Cincinnati Contamination Warning System Pilot (PDF)(24 pp, 2 MB)
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.