SANTA ANA RIVER WATERSHEAD BACTERIA MONITORING PROGRAM · 2019-12-26 · SANTA ANA RIVER WATERSHEAD...
Transcript of SANTA ANA RIVER WATERSHEAD BACTERIA MONITORING PROGRAM · 2019-12-26 · SANTA ANA RIVER WATERSHEAD...
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SANTA ANA RIVER WATERSHEAD BACTERIA MONITORING PROGRAM
David WoelfelSenior Environmental Scientist
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MIDDLE SANTA ANA RIVER
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MONITORING PLAN ROADMAP(inland surface waters)
• Implement monitoring and surveillance requirements of the 2012 REC Standards BPA
• Conduct sampling to support implementation of the MSAR Bacteria TMDL
• Support any additional bacteria indicator monitoring to support regional activities
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Regional Monitoring Program (RMP)
• Provide data needed to determine if water quality in the most popular water contact REC waters meets standards
• Facilitate the MSAR TMDL Implementation
• Apply a risk-based implementation strategy for the best allocation of public resources
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RMP Monitoring Priorities
• Priority 1: To determine if most popular water contact REC waters are safe
• Priority 2: TMDL adopted waters
• Priority 3: 303 (d) listed impaired waterbodies with no TMDL
• Priority 4: Implement antidegradation targets
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Priority 1 – REC1 Tier A Waters
• Big Bear Lake, Lake Perris, Canyon Lake, Lake Elsinore, SAR Reach 3, Lytle Creek Middle Reach Fork, and Mill Creek Reach 2
• 20-week dry weather sampling (May 1 and Sept 30) / One 6-week cool season (October through November)
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Priority 2
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Priority 3
• 303 (d) listed or impaired waters (for Bacteria) with no TMDL yet developed
• Newport Coast streams, Borrego Creek, Peters Canyon Wash, San Diego Creek, SAR Reach 4, Goldenstar Creek
• Minimum of 5 samples over 6 weeks
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Priority 4 Waters
• REC1 use has been de-designated as a result of an approved UAA
• Santa Ana Delhi, Greenville Banning Channels, Temescal Creek Reach 1a and 1b, and Cucamonga Creek Reach 1
• Antidegradation targets developed
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Site ID Site Geomean (highest over 12 weeks)
P1-1 Canyon Lake 2.1 P1-2 Lake Elsinore 10.7P1-3 Lake Perris 9.2P1-4 Big Bear Lake 3.1P1-5 Mill Creek 1.9P1-6 Lytle Creek 5.6WW-S1 SAR MWD X 199WW-S4 SAR Pedley Ave 138WW-C3 Prado Park Lake 84WW-C7 Chino Creek 674WW-M6 Mill-Cucamonga 237
2019 Quarter 3 Dry Weather E.coli Geomean Concentrations (MPN /100 mL)
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QUESTIONS