EXH0140018164

STIA Master Plan Update Improvements i 556-2912-001(28B) AR 018165 TABLE OF CONTENTS (CONTINUED) Page 4.2.2 Facilities Overview ...................................................................................... 4-1 4.3 FACILITY OPERATION ........................................................................................ 4-2 4.3.1 System Schedules ......................................................................................... 4-2 4.3.2 Faeility-Speeific Sehedules .......................................................................... 4-7 4.4 INSPECTION AND MAINTENANCE .................................................................. 4-7 4.4.1 Procedures .................................................................................................... 4-7 4.4.2 Sediment Removal ....................................................................................... 4-7 4.4.3 Schedule ..................................................................................................... ¢-10 4.4.4 Documentation ........................................................................................... 4-10 4.4.5 Reporting .................................................................................................... 4-10 4.5 SAFETY ................................................................................................................. 4-10 5. MONITORING PLAN ......................................................................................................... 5-1 5.1 WATER QUALITY AND FLOW MONITORING ............................................... 5-1 5.1.1 Characterization of Existing/Expected Water Quality ................................. 5-1 5.1.2 Momtoring of Annual Test Releases from the Flow Impact Offset Facility ................................................................ .......................................... 5-1 5.1.3 Operational Monitoring ................................................................................ 5-2 • 5.2 BIOLOGICAL MONITORING .............................................................................. 5-4 5.2.1 B-IBI Sampling Protocol ............................................................................. 5-4 5.2.2 Physical Habitat Monitoring Protocol ......................................................... 5-7 5.3 FILL MONITORING, INFILTRATION BMPS, AND INFILTRATION CONTINGENCY MEASURES .............................................................................. 5-7 5.3.1 Existing Fill Quality Control Testing ........................................................... 5-8 5.3.2 New Infiltration Capacity Testin_ Protocol for Fill ..................................... 5-8 5.3.3 Fill Infiltration Performance Criterion ....................................................... 5-10 5.3.4 Fill Infiltration BMPs ................................................................................. 5-10 5.3.5 Fill Infiltration Contingency Measures ...................................................... 5-10 • 5.4 ADAPTIVE MANAGEMENT .............................................................................. 5-11 6. REFERENCES ...................................................................................................................... 6-1 APPENDICES A HSPF MODELING INFORMATION AND DATA (CONTAINED IN VOLUME 2) B EMB,MqK_MENT MODELING REPORT C EMBANKMENT INFILTRATION MEMORANDUM D NON-HYDROLOGIC IMPACTS SUPPORT DATA E HEC-RAS MODELING INFORMATION AND FIELD SURVEY DATA F RESERVE STORMWATER RELEASE STORAGE FACILITIES CONCEPT DRAWINGS G PHYSICAL HABITAT SURVEY AND MONITORING PROTOCOL FOR WADABLE STREAMS H LOW STREAMFLOW FISH BEHAVIOR MEMORANDUM DETERMINATION OF LOW-FLOW QUANTITY IMPACTS AND MITIGATION J HSPF INPUT…

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Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]