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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ <br />o The methodology and type of data relied upon, including supervisory control and <br />data acquisition (SCADA) records, flow monitoring or other telemetry information <br />used to estimate the volume of the spill discharged, and the volume of the spill <br />recovered (if any volume of the spill was recovered), and <br />o The methodology and type of data relied upon to estimate the spill start time, on- <br />going spill rate at time of arrival (if applicable), and the spill end time; <br />11. Description of implemented system modifications and operating/maintenance <br />modifications. <br />Recordkeeping of Individual Lateral Spill Information: <br />1. Date and time the Enrollee was notified of, or self -discovered, the spill; <br />2. Location of individual spill; <br />3. Estimated individual spill volume; <br />4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and <br />5. Description of how the volume estimations were calculated. <br />Total Annual Spill Information: <br />1. Estimated total annual spill volume; <br />2. Description of spill corrective actions, including at minimum: <br />o Local regulatory enforcement action taken against the sewer lateral owner in <br />response to a spill, as applicable, and <br />o System operation, maintenance and program modifications implemented to <br />prevent repeated spill occurrences at the same spill location. <br />4.5. Sewer System Telemetry Records <br />The Enrollee shall maintain the following sewer system telemetry records if used to <br />document compliance with this General Order, and previous General Order <br />2006-0003-DWQ as applicable, including spill volume estimates: <br />• Supervisory control and data acquisition (SCADA) system(s); <br />• Alarm system(s); <br />• Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, <br />and/or volumes; <br />• Computerized maintenance management system records; and <br />• Asset management -related records. <br />4.6. Sewer System Management Plan Implementation Records <br />The Enrollee shall maintain records documenting the Enrollee's implementation of its <br />Sewer System Management Plan, including documents supporting its Sewer System <br />Management Plan audits, corrections, modifications, and updates to the Sewer System <br />Management Plan. <br />ATTACHMENT E1 — NOTIFICATION, MONITORING, REPORTING <br />AND RECORDKEEPING REQUIREMENTS December 6, 2022 <br />El - 22 <br />