Quality Assurance Project Plan for Baseline Monitoring of WSDOT Highway Runoff March 2014 Revision Prepared by Environmental Assessment Program Washington State Department of Ecology and Environmental Services Office, Stormwater and Watersheds Program Washington State Department of Transportation Author and Contact Information Washington State Department of Transportation Stormwater and Watersheds Program P.O. Box 47332 Olympia, WA 98504-7332 www.wsdot.wa.gov/ and Washington State Department of Ecology Environmental Assessment Program P.O. Box 47600 Olympia, WA 98504-7710 www.ecy.wa.gov/ Any use of product or firm names in this publication is for descriptive purposes only and does not imply endorsement by the author or the Departments of Ecology or Transportation. Materials can be provided in alternative formats by calling the ADA Compliance Manager at 360-705-7097 Persons who are deaf or hard of hearing may contact the number via the Washington Relay Service at 7-1-1 Quality Assurance Project Plan for Baseline Monitoring of WSDOT Highway Runoff March 2014 revision QAPP for Baseline Monitoring of WSDOT Highway Runoff Page i Acknowledgements WSDOT would like to express special thanks to the following agencies and individuals for their comments, insights, and contributions, which were invaluable in the development of this Quality Assurance Project Plan. • Kevin Buckley – Seattle Public Utilities • John Herrmann – Snohomish County Public Works • Dana de Leon – City of Tacoma • Brandi Lubliner – WA State Department of Ecology • Ashley Carle – Stormwater Monitoring Specialist, WSDOT Stormwater and Watersheds Program • Brandon Slone – Stormwater Monitoring Specialist, WSDOT Stormwater and Watersheds Program • Karl Miller – Stormwater Monitoring Logistics Support, WSDOT Stormwater and Watersheds Program • Don Fisher – Infrastructure and Telemetry Specialist, WSDOT Stormwater and Watersheds Program Page ii QAPP for Baseline Monitoring of WSDOT Highway Runoff Contents Acknowledgements ....................................................................................................................................... ii Figures and Tables ........................................................................................................................................ v 1 Abstract .................................................................................................................................................. 1 2 Background ............................................................................................................................................. 2 2-1 WSDOT NPDES Permit History .................................................................................................... 2 2-2 Previous Highway Monitoring Studies ........................................................................................ 4 3 Project Description ................................................................................................................................. 8 3-1 Project Goals ............................................................................................................................... 8 3-2 S7.B and S7.C Monitoring Requirements .................................................................................... 8 3-3 Data Collection .......................................................................................................................... 10 3-4 Practical Constraints for Highway Monitoring .......................................................................... 12 4 Organization and Schedule ................................................................................................................... 17 4-1 Organization .............................................................................................................................. 17 4-2 Schedule .................................................................................................................................... 18 5 Quality Objectives ................................................................................................................................ 20 5-1 Data Quality Objectives ............................................................................................................ 20 5-2 Measurement Quality Objectives ............................................................................................. 20 6 Site Descriptions ................................................................................................................................... 27 6-1 Selected Highway Monitoring Sites .......................................................................................... 27 6-2 I-5 Sites – Everett and Pilchuck Creek ....................................................................................... 28 6-3 SR 9 Marysville .......................................................................................................................... 31 6-4 Interstate-90 Pines (Urban Eastern Washington AADT) ........................................................... 33 6.5 Summary of Highway Setting and Details ................................................................................. 34 7 Sampling Process Design ...................................................................................................................... 37 7-1 Monitoring Set-Up for Highway Pavement Edge ...................................................................... 37 7-2 Monitoring Strategy Overview .................................................................................................. 41 7-3 Annual Seasonal First Flush Toxicity Monitoring ...................................................................... 45 8 Sampling Procedures ............................................................................................................................ 49 8-1 Storm Event Targeting Procedures ........................................................................................... 49 8-2 Pre-Event Preparation Procedures ........................................................................................... 51 8-3 Monitoring and Maintenance Procedures ................................................................................ 53 9 Measurement Procedures .................................................................................................................... 59 9-1 Laboratory Selection ................................................................................................................. 59 9-2 Sample Processing Procedure ................................................................................................... 59 9-3 Sample Labeling and Chain of Custody ..................................................................................... 62 QAPP for Baseline Monitoring of WSDOT Highway Runoff Page iii 9-4 Laboratory Methods, Instruments, and Reporting Limits ........................................................ 63 10 Quality Control Procedures .................................................................................................................. 64 10-1 Field Quality Control Procedures .............................................................................................. 64 10-2 Laboratory Quality Control Procedures .................................................................................... 67 11 Data Management Procedures ............................................................................................................ 71 11-1 Telemetered Data Management............................................................................................... 71 11-2 Field Data Management ............................................................................................................ 71 11-3 Laboratory Data ........................................................................................................................ 71 11-4 Self-Assessment and Audits ...................................................................................................... 72 11-5 Deficiencies, Nonconformances, and Corrective Action .......................................................... 72 12 Data Verification, Validation, and Usability ......................................................................................... 74 12-1 Data Verification ....................................................................................................................... 74 12-2 Data Validation.......................................................................................................................... 75 12-3 Usability Statement ................................................................................................................... 75 13 Reports ................................................................................................................................................. 76 13-1 Stormwater Monitoring Status Report ..................................................................................... 76 13-2 Report for Baseline Monitoring of Highways ............................................................................ 76 13-3 Final Water Quality Monitoring Report .................................................................................... 78 14 References ............................................................................................................................................ 79 15 Appendices