Environmental CommissionAug. 18, 2021

20200818-003b: Updating the TCEQ TMDL Implementation Plan presentation — original pdf

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Updating the TCEQ TMDL Implementation Plan for • Waller, • Walnut, • Taylor Slough South, and • Spicewood Trib of Shoal Julie White Environmental Program Coordinator Julie.White@austintexas.gov 512-974-3527 Andrew Clamann Environmental Scientist Senior Andrew.Clamann@austintexas.gov 512-974-2694 This is not my beautiful creek! You may ask yourself: How did we get here? Water quality monitoring data submitted to the State If data indicates impairment, then the stream is placed on the "303(d)* list" * Clean Water Act Section 303(d) requires states to regularly identify water bodies that do not meet water quality standards ** TMDL (Total Maximum Daily Load): a program to analyze data with goal to resolve issue State develops a TMDL** with an Implementation Plan aka "IPlan" You may ask yourself: My God, what's an IPLAN? • A set of strategies to achieve the goal of pollution reduction outlined in the TMDL • Facilitated by TCEQ staff • Developed by stakeholders • 5year implementation period (+ revisions) An I-plan outlines: • What the community will do over the next five years • Who will do it • When they will do it • How we will gauge improvement Currently there are 5 Austin watersheds with IPlans (due to bacteria impairment) IPlan approved in 2011, revised 2017 Gilleland Waller Walnut Taylor Slough South Spicewood Trib of Shoal IPlan for 4 urban watersheds approved in 2015, expired* in 2020, now require revision *IPlans have 5-year approval periods after which they are reviewed and revised (if necessary) The 2015-2020 IPlan for 4 Austin urban creeks 5 primary voluntary strategies • Protect and restore riparian areas • Maintain wastewater infrastructure – includes OSSF, adding public toilets • Improve domestic pet waste management • Education/ public outreach to engage citizens • Improve management of stormwater MS4 Permit & Stormwater Management Program (SWMP) • Population triggered regulatory permit designed to reduce pollutant discharges into city stormwater conveyances. • Develop and implement a plan and submit accomplishments to the TCEQ annually • Periodic audits by TCEQ or EPA Measures to reduce stormwater pollution aka Minimum Control Measures (MCMs) 1. MS4 Maintenance Activities 2. Post-Construction Storm Water Control Measures 3. Illicit Discharge Detection and Elimination 4. Pollution Prevention/Good Housekeeping for Municipal Operations 5. Industrial and High Risk Runoff 6. Construction Site Storm Water Runoff 7. Public Education and Involvement 8. Monitoring Programs I thought we were talking about I-plans? TMDL measures (previously voluntary) are now required to be included in the SWMP making them regulatory measures. What does the data show from the past 5 years of IPlan implementation? Improvement! 4 out of 5 stream segments are trending in the right direction! (not same as it ever was!) Water Quality Data: AU 1403_J Spicewood Tributary to Shoal Creek 2008-2020 Station 16316 - Spicewood Tributary to Shoal Creek downstream Ceberry Drive January1, 2008 through May 1, 2020 (data not collected under a TCEQ QAPP) ) N P M ( i l o c . E 3000 2500 2000 1500 1000 500 0 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 End Date FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ) s f c ( w o l F Taylor Slough South Water Quality Data: AU 1403_K Water Quality Data: AU 1403_J 2008-2020 Station 17294 - Taylor Slough South downstream of Pecos Street January 1, 2008 through May 1, 2020 (data not collected under a TCEQ QAPP) ) N P M ( i l o c . E 3000 2500 2000 1500 1000 500 0 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 End Date FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 ) s f c ( w o l F Water Quality Data: AU 1428B_05 Walnut Creek (downstream of MoPac) Water Quality Data: AU 1403_J Water Quality Data: AU 1403_K 2008-2020 Station 17251 - Walnut Creek downstream Loop 1 January 1, 2008 through May 1, 2020 ) N P M ( i l o c . E 3000 2500 2000 1500 1000 500 0 6 5 4 3 2 1 0 ) s f c ( w o l F 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 End Date FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) Water Quality Data: AU 1429C_01 Waller Creek (downstream of Waterloo) Water Quality Data: AU 1403_J Water Quality Data: AU 1428B_05 Water Quality Data: AU 1403_K 2008-2020 Station 12235 - Waller Creek at 2nd Street January 1, 2008 through May 1, 2020 (data not collected under a TCEQ QAPP) ) N P M ( i l o c . E 30000 25000 20000 15000 10000 5000 0 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 End Date FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) 12 10 8 6 4 2 0 ) s f c ( w o l F ) N P M ( i l o c . E 30000 25000 20000 15000 10000 5000 0 Water Quality Data: AU 1429C_02 Waller Creek (at 24th) Water Quality Data: AU 1403_J Water Quality Data: AU 1429C_01 Water Quality Data: AU 1428B_05 Water Quality Data: AU 1403_K 2008-2020 Station 15962 - Waller Creek at 24th Street January 1, 2008 through May 1, 2020 (data not collected under a TCEQ QAPP) 12 10 8 6 4 2 0 ) s f c ( w o l F 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) End Date ) N P M ( i l o c . E 7000 6000 5000 4000 3000 2000 1000 0 Water Quality Data: AU 1429C_02 Water Quality Data: AU 1429C_03 Waller Creek (at Avenue H) Water Quality Data: AU 1403_J Water Quality Data: AU 1429C_01 Water Quality Data: AU 1428B_05 Water Quality Data: AU 1403_K 2008-2020 Station 16331 - Waller Creek at Avenue H January 1, 2008 through May 1, 2020 (data not collected under a TCEQ QAPP) 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 ) s f c ( w o l F 8 0 0 2 / 1 / 1 8 0 0 2 / 1 / 5 8 0 0 2 / 1 / 9 9 0 0 2 / 1 / 1 9 0 0 2 / 1 / 5 9 0 0 2 / 1 / 9 0 1 0 2 / 1 / 1 0 1 0 2 / 1 / 5 0 1 0 2 / 1 / 9 1 1 0 2 / 1 / 1 1 1 0 2 / 1 / 5 1 1 0 2 / 1 / 9 2 1 0 2 / 1 / 1 2 1 0 2 / 1 / 5 2 1 0 2 / 1 / 9 3 1 0 2 / 1 / 1 3 1 0 2 / 1 / 5 3 1 0 2 / 1 / 9 4 1 0 2 / 1 / 1 4 1 0 2 / 1 / 5 4 1 0 2 / 1 / 9 5 1 0 2 / 1 / 1 5 1 0 2 / 1 / 5 5 1 0 2 / 1 / 9 6 1 0 2 / 1 / 1 6 1 0 2 / 1 / 5 6 1 0 2 / 1 / 9 7 1 0 2 / 1 / 1 7 1 0 2 / 1 / 5 7 1 0 2 / 1 / 9 8 1 0 2 / 1 / 1 8 1 0 2 / 1 / 5 8 1 0 2 / 1 / 9 9 1 0 2 / 1 / 1 9 1 0 2 / 1 / 5 9 1 0 2 / 1 / 9 0 2 0 2 / 1 / 1 0 2 0 2 / 1 / 5 End Date FLOW STREAM INSTANTANEOUS (CUBIC FEET PER SEC) E. COLI COLILERT IDEXX METHOD MPN/100ML Geomean (126 MPN) Linear (E. COLI COLILERT IDEXX METHOD MPN/100ML) What's the (I)plan Stan? Kickoff meeting was June 24, 2021 Identify stakeholders Look at the data • • • Review original facets of the IPlan (what's working, what's not) • Determine how to revise Anticipate I-plan revision adoption in fall of 2022 2015 IPlan Stakeholders You are cordially invited to a seat at the table RSVP Questions? https://www.tceq.texas.gov/ waterquality/tmdl/101- austinbacteria