Education & Outreach |
7.0 |
Ongoing Stormwater Education Participation and inclusion of bacteria-specific materials |
forum by attending a minimum of 1 meeting per year .
Include one explainer video related to TMDLs on the City ’ s website .
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Stormwater Quality Manager attended 3 out of three meetings . One TMDL explainer video was incorporated on the City ’ s Stormwater webpage in FY21 . |
Identify by the end of FY21 , a minimum of one ( 1 ) benchmark for each POC : The permit requires that benchmarks be determined for POCs identified by permittees . The primary POC for the City of Arlington is bacteria . The benchmark must be determined by either of the two methodologies ( A or B ) outlined in the City of Arlington ’ s MS4 permit .
The City chose to utilize the methodology outlined in Option A : waste load allocations for permitted MS4 stormwater sources . Waste Load Allocations ( WLAs ) for regulated stormwater sources for TMDL and impaired waters are calculated and outlined in the I-plan . WLAs for impaired assessment units ( AUs ) within Arlington ’ s jurisdiction are listed below . These WLAs will serve as the benchmarks for TMDL and impaired waters within Arlington . All loads are expressed as billion MPN / day .
Assessment Unit ( AU ) |
Stream Name |
WLASW |
0841 _ 02 |
Lower West Fork Trinity River |
1920.0 |
0841F |
Cottonwood Creek |
46.053 |
0841K |
Fish Creek |
103.393 |
0841L |
Johnson Creek |
491.0 |
0841M |
Kee Branch |
184.4 |
0841R |
Rush Creek |
678.7 |
0841T |
Village Creek |
357.9 |
Continue to implement the Year 1 goal – monitoring bacteria levels monthly at 13 established locations throughout the MS4 ’ s watersheds : See Year 1 Goal outlined above .
By the end of FY21 , review all SSO discharges that reached a waterbody occurring from 2010-2019 to determine MS4 contribution : Based on the available data , the City has determined that it may be a source of the pollutant of concern identified in the SWMP and the CWA 303d list and that discharges from the MS4 would likely contain the POC above the LOC . Between 2010 and 2020 a total of 618 SSO ’ s have entered a waterbody or drainage course with a total of over 9 million gallons of sewage discharged .
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