sample temperature , surfactants , chlorine , copper , phenols , ammonia , and visual observation . A total of 371 monthly inner creek sampling events occurred during the reporting period .
III . Wet Weather Monitoring – RWWCP 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 fourth term of the RWWCP spans 2018-2022 , with no sampling to occur in 2022 . The sampling plan for the fourth program term will effectively monitor at least 50 % of Arlington ’ s jurisdictional area by the end of the term . Each sampling station will be monitored for a minimum of two years . The results of those monitoring activities are available in Appendix D . RWWCP sample locations for FY21 in the fourth monitoring term are identified below .
Watershed |
Station ID |
Location |
Latitude & Longitude |
Rush Creek |
AR2101 |
Rush Creek @ W .
Sublett Rd .
|
32.648889
97.146389
|
Rush Creek |
AR2102 |
Rush Creek @
Woodland Park
Blvd .
|
32.713889
97.172778
|
Number of samples taken & type
4 ( Chemical )
4 ( Chemical )
IV . Industrial and High-Risk Monitoring In FY21 , nine ( 9 ) industrial facilities were identified as having benchmark requirements . Benchmarks are due to TCEQ and the City of Arlington on March 31 annually and cover the period from January 1 of the previous year through December 31 . The benchmark reporting indicated below covers the period January 1 , 2021 through December 31 , 2021 – a portion of the FY21 reporting period . As of the writing of this report , nine ( 9 ) facilities of the nine facilities have submitted a copy of their benchmark data to the City of Arlington . Of the nine submittals , one ( 3 ) facilities were compliant ; and six ( 6 ) were non-compliant , each having exceeded benchmark parameters . Four ( 4 ) of the six non-compliant facilities remain on corrective action plans from FY21 .
Industrial Facilities – Benchmark Requirements |
Quantity |
Compliant Facilities |
3 |
Non-Compliant Facilities : Exceeded Benchmarks |
6 |
Facilities on Corrective Action Plans |
4 |
The City will continue to send notice to all facilities on file with benchmark monitoring requirements to remind them of their reporting requirements to TCEQ and will request that a copy of the report also be sent to the Stormwater Management Division , Environmental Management Group . Those who do not submit the benchmark monitoring data to the City will be asked to provide a hard copy of the data upon annual inspection of their facility to be reviewed and filed with industrial inspections records . Compliance Action Plans are reviewed at annual inspection or by March 31 ( whichever is later ) to determine if corrective measures were effective .
V . Clean Rivers Program ( CRP ) The CRP program is coordinated through the Trinity River Authority of Texas ( TRA ). CRP sampling is conducted at eight predetermined sites on a quarterly basis . In June 2016 , the City began sampling monthly for E . coli at the eight
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