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Creek Status Monitoring, WY 2014 – WY 2019

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Creek Status Monitoring, WY 2014 – WY 2019 SMCWPPP IMR Part B: Creek Status Monitoring, WY 2014 – WY 2019 Cover Page PART B: CREEK STATUS MONITORING Water Year 2014 through Water Year 2019 Submitted in compliance with Provision C.8.h.v of NPDES Permit No. CAS612008 (Order No. R2-2015-0049) March 31, 2020 DRAFT SMCWPPP IMR Part B: Creek Status Monitoring, WY 2014 – WY 2019 Preface In early 2010, several members of the Bay Area Stormwater Agencies Association (BASMAA) joined together to form the Regional Monitoring Coalition (RMC), to coordinate and oversee water quality monitoring required by the Municipal Regional National Pollutant Discharge Elimination System (NPDES) Stormwater Permit (in this document the permit is referred to as MRP)1. The RMC is comprised of the following participants: • Alameda Countywide Clean Water Program (ACCWP) • Contra Costa Clean Water Program (CCCWP) • San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) • Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP) • Fairfield-Suisun Urban Runoff Management Program (FSURMP) • City of Vallejo and Vallejo Flood and Wastewater District (Vallejo) This Integrated Monitoring Report (IMR) Part B: Creek Status Monitoring, Water Year (WY) 2014 – WY 2019 complies with Provision C.8.h.v of the MRP for reporting of all data collected since the previous IMR which was submitted on March 31, 2014. It includes data collected in WY 2014 through WY 2019 (October 1, 2013 through September 30, 2019). Data were collected pursuant to Creek Status Monitoring and Pesticides & Toxicity Monitoring requirements of MRP Provision C.8. Data presented in this report were developed under the direction of the RMC and the San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) using probabilistic and targeted monitoring designs as described herein. Consistent with the RMC Creek Status and Long-Term Trends Monitoring Plan (BASMAA 2012), monitoring data were collected in accordance with the most recent versions of the BASMAA RMC Quality Assurance Project Plan (QAPP; BASMAA, 2016a) and BASMAA RMC Standard Operating Procedures (SOPs; BASMAA, 2016b). Where applicable, monitoring data were derived using methods comparable with methods specified by the California Surface Water Ambient Monitoring Program (SWAMP) Quality Assurance Program Plan (QAPrP)2. Data presented in this report were also submitted in electronic SWAMP-comparable formats by SMCWPPP to the San Francisco Bay Regional Water Quality Control Board on behalf of San Mateo County Permittees and pursuant to Provision C.8.h.ii of the MRP. 1 The San Francisco Bay Regional Water Quality Control Board (SFRWQCB or Regional Water Board) issued the MRP to 76 cities, counties and flood control districts (i.e., Permittees) in the Bay Area on October 14, 2009 (SFRWQCB 2009). On November 19, 2015, the Regional Water Board updated and reissued the MRP (SFRWQCB 2015). The BASMAA programs supporting MRP Regional Projects include all MRP Permittees as well as the cities of Antioch, Brentwood, and Oakley, which are not named as Permittees under the MRP but have voluntarily elected to participate in MRP-related regional activities. 2 The current SWAMP QAPrP is available at: https://www.waterboards.ca.gov/water_issues/programs/swamp/qapp/swamp_QAPrP_2017_Final.pdf i SMCWPPP IMR Part B: Creek Status Monitoring, WY 2014 – WY 2019 List of Acronyms ACCWP Alameda Countywide Clean Water Program AFDM Ash Free Dry Mass AFS American Fisheries Society ASCI Algae Stream Condition Index BASMAA Bay Area Stormwater Management Agency Association BMI Benthic Macroinvertebrate BMP Best Management Practices C/CAG City/County Association of Governments CCCWP Contra Costa Clean Water Program CDF Cumulative Distribution Function CEDEN California Data Exchange Network COLD Cold Freshwater Habitat CSBP California Bioassessment Protocol CSCI California Stream Condition Index DF Detection Frequency DO Dissolved Oxygen DPR Department of Pesticide Regulation EMAP Environmental Monitoring and Assessment Program FSURMP Fairfield Suisun Urban Runoff Management Program GIS Geographic Information Systems GM Geometric Mean GRTS Generalized Random Tessellation Stratified GSI Green Stormwater Infrastructure HDI Human Disturbance Index IBI Index of Biological Integrity IDDE Illicit Discharge Detection and Elimination IMR Integrated Monitoring Report IPI Index Physical Habitat Integrity IPM Integrated Pest Management LID Low Impact Development MDL Method Detection Limit MIGR Fish Migration MMI Multimetric Index MPC Monitoring and Pollutants of Concern Committee MPN Most Probable Number MRP Municipal Regional Permit MS4 Municipal Separate Storm Sewer System MUN Municipal and Domestic Water Supply Beneficial Use MWAT Maximum Weekly Average Temperature MWMT Maximum Weekly Maximum Temperature NMFS National Marine Fisheries Service NPDES National Pollutant Discharge Elimination System O/E Observed to Expected PAH Polycyclic Aromatic Hydrocarbons PCBs Polychlorinated Biphenyls PEC Probable Effects Concentrations PHAB Physical Habitat Assessments pMMI Predictive Multimetric Index PSA Perennial Streams Assessment QAPP Quality Assurance Project Plan QAPrP Quality Assurance Program Plan QA/QC Quality Assurance/Quality Control RARE Preservation of Rare and Endangered Species ii SMCWPPP IMR Part B: Creek Status Monitoring, WY 2014 – WY 2019 RM Reporting Module RMC Regional Monitoring Coalition RWB Reachwide Benthos RWQC Recreation Water Quality Criteria SAFIT Southwest Association of Freshwater Invertebrate Taxonomists SCAPE Stream Classification and Priority Explorer SCCWRP Southern California Coastal Water Research Project SCVURPPP Santa Clara Valley Urban Runoff Pollution Prevention Program SFRWQCB San Francisco Bay Regional Water Quality Control Board SMC Southern California Monitoring Coalition SMCWPPP San Mateo County Water Pollution Prevention Program SOP Standard Operating Protocol SPoT Stream Pollution Trends Program SPWN Fish Spawning SRP Stormwater Resource Plan SSID Stressor/Source Identification STORMS Strategy to Optimize Resource Management of Storm Water SWAMP Surface Water Ambient Monitoring Program SWPP Surface Water Protection Program TEC Threshold Effects Concentrations TKN Total Kjeldahl Nitrogen TMDL Total Maximum Daily Load TOC Total Organic Carbon TST Test of Significant Toxicity TU Toxicity Unit UCMR Urban Creeks Monitoring Report USEPA Environmental Protection Agency WARM Warm Freshwater Habitat WQO Water Quality Objective WY Water Year iii SMCWPPP IMR Part B: Creek Status Monitoring, WY 2014 – WY 2019 Table of Contents Preface ........................................................................................................................................ i List of Acronyms ......................................................................................................................... ii Table of Contents ....................................................................................................................... iv List of Figures ............................................................................................................................ vi List of Tables ........................................................................................................................... viii List of Attachments ..................................................................................................................... x 1.0 Introduction ..................................................................................................................... 1 1.1 Monitoring Goals ..................................................................................................... 2 1.2 Regional Monitoring Coalition .................................................................................. 2 1.3 Monitoring and Data Assessment Methods ............................................................. 4 1.3.1 Monitoring Methods ........................................................................................ 4 1.3.2 Laboratory Analysis Methods ......................................................................... 5 1.3.3 Data Analysis Methods ................................................................................... 5 1.4 Setting ..................................................................................................................... 5 1.4.1 Designated Beneficial Uses ......................................................................... 9 1.4.2 Climate ........................................................................................................ 9 1.5 Statement of Data Quality ......................................................................................12 2.0 Biological Condition Assessment ....................................................................................13 2.1 Introduction ............................................................................................................13 2.2 Methods .................................................................................................................14 2.2.1 Probabilistic Survey Design ...........................................................................14 2.2.2 Site Evaluations .............................................................................................15 2.2.3 Field Sampling Methods ................................................................................15 2.2.4 Data Analysis ................................................................................................16
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