SUMMARY OF REPRESENTATIVE MONITORING DATA ( AND ANY OTHER DATA )
SUMMARY OF REPRESENTATIVE MONITORING DATA ( AND ANY OTHER DATA )
Representative monitoring data and any additional data collecting over the reporting period is outlined above . Data accumulated during the reporting period is summarized in Section 1 , MCM 8 : Monitoring , Evaluation , and Reporting . Water quality samples are obtained as part of several ongoing stormwater management programs , including dry weather screening , routine monthly screening , the Clean Rivers Program , and the NCTCOG Wet Weather Monitoring Program . Sampled analytes vary by program and are explained in MCM 8 above .
During the reporting period , 351 outfalls were screened as part of the dry weather program . No illicit discharges or connections were detected . A total of 370 monthly inner creek samples were taken to determine the presence of illicit discharges . Parameters measured include level of flow , pH , DO , specific conductivity , water temperature , surfactants , chlorine , copper , phenols , ammonia , and other visual indicators . Nineteen ( 19 ) illicit connections or discharges were found and corrected .
The Trinity River Authority ( TRA ) provides all Clean Rivers Program ( CRP ) data to the TCEQ on behalf of the participating entities . In September 2014 , the City of Arlington converted to the TRA CRP reporting and sampling schedule , thus sampling may not necessarily align with the City of Arlington ’ s defined fiscal year or annual reporting cycle . CRP sampling occurred in November 2018 , February 2019 , May 2019 , and August 2019 .
The City monitors wet weather events through a wet weather screening program designed to identify and investigate areas that may contribute excessive concentrations of pollutants to the MS4 , and to establish baseline data on receiving streams . The City ’ s wet weather monitoring efforts are coordinated by the NCTCOG through its RWWCP . Participation in the RWWCP was offered as an option in Part IV . A . 1 of the City ’ s TPDES Phase 1 MS4 permit . NCTCOG provides all RWWCP data to the TCEQ on behalf of the participating entities . The City collects water quality data from NCTCOG quarterly or when published . The third term of the RWWCP spanned 2011-2015 , thus the conclusion of monitoring efforts occurred in 2015 . Monitoring resumed in FY2018 under new contract with the NCTCOG . The results of those monitoring activities are available in Appendix D . The new monitoring term will span 2018 through 2022 .
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