Late Reporting of Monitoring Results

Reminder: Waterworks are required to submit monitoring results to ODW by the 10th of the month following the month during which the sample result was received, or the 10th of the month following the end of the monitoring period, whichever is shorter. (See 12VAC5-590-530 A of the Waterworks Regulations.) Laboratory reports are considered to be reported to ODW when they are successfully received in ODW’s Safe Drinking Water Information System (SDWIS) database. Laboratories are required to report sampling results through the Compliance Monitoring Data Portal (CMDP). Other attempted methods of reporting sampling results are not valid for compliance with the Waterworks Regulations.
To help prevent waterworks from receiving a Notice of Alleged Violation from ODW for late reporting, waterworks should communicate with their laboratory about the sample collection and reporting process. This includes engaging with the laboratory about when in the monitoring period samples should be taken so they can be analyzed and reported by the laboratory through CMDP prior to the deadline in the Waterworks Regulations. Ultimately, the waterworks is responsible for timely reporting.