Summary of DBP Quarterly Report
Number of APIs: 2
The data tables summarizes the disinfection by-product results for TTHM and HAA5 from distribution sites and calculated compliance values for each quarter (a) : analyzed by EPA Method 524.3 (b) : analyzed by EPA Method 552.3 LRAA: The Locational Running Annual Average (LRAA) is calculated by taking the value of this quarter and the three previous consecutive quarters. RAA: The System-wide Running Annual Average (RAA) is calculated by taking the average of the Quarterly Average of this quarter and the three previous consecutive quarters. OEL: The Operational Evalution Level (OEL) is calculated by averaging 2 times this quarter’s value and the two previous consecutive quarters. Both the LRAA and the System-wide RAA is not to exceed 80 µg/L for TTHM and 60 µg/L for HAA5.The data tables summarizes the disinfection by-product results for TTHM and HAA5 from distribution sites and calculated compliance values for each quarter (a) : analyzed by EPA Method 524.3 (b) : analyzed by EPA Method 552.3 LRAA: The Locational Running Annual Average (LRAA) is calculated by taking the value of this quarter and the three previous consecutive quarters. RAA: The System-wide Running Annual Average (RAA) is calculated by taking the average of the Quarterly Average of this quarter and the three previous consecutive quarters. OEL: The Operational Evalution Level (OEL) is calculated by averaging 2 times this quarter’s value and the two previous consecutive quarters. Both the LRAA and the System-wide RAA is not to exceed 80 µg/L for TTHM and 60 µg/L for HAA5.