Eastern Washington
Stormwater Effectiveness Studies
Quality Assurance Project Plan
Sand Filter Sidewalk Vault BMP
Study Classification: Structural BMP
Study Objective(s):  Evaluate Effectiveness
 Develop New BMP
November 1st, 2018
Prepared For:
Spokane County
Public Works Department
1116 W. Broadway Avenue
Spokane, Washington 99260
(509)477-3600
Prepared By:
HDR, Inc.
1401 E. Trent Ave., Suite 101
Spokane, Washington 99202
(509)343-8500
FINAL QAPP
SAND FILTER SIDEWALK VAULT BMP
November 1, 2018
Page | ii
Proposal and QAPP Publication Information
This Detailed Study Design Proposal (Proposal) and Quality Assurance Project Plan (QAPP) will
be stored and accessible to the public on the Spokane County’s website:
https://www.spokanecounty.org/918/Stormwater-Utility. For questions regarding the Proposal,
please contact Matt Zarecor by email [email protected] or phone (509) 477-7255.
Proposal Authors and Contact Information
Aimee Navickis-Brasch, P.E., Ph.D. Candidate
Zack Holt
Senior Stormwater Engineer
Environmental Services Director
HDR, Inc.
D&H Technology Solutions, LLC
1401 E. Trent Ave., Suite 101
15206 131st Ave. CT KPN
Spokane, WA 99202
Gig Harbor, Washington 9329
[email protected]
[email protected]
(509) 343-8515
(360) 509-0996
QAPP Authors and Contact Information
Aimee Navickis-Brasch, P.E., Ph.D.
Chad Wiseman
Senior Stormwater Engineer
Water Quality Specialist
HDR, Inc.
1401 E. Trent Ave., Suite 101
905 Plum Street NE Suite 200
Spokane, WA 99202
Olympia, WA 98501
[email protected]
[email protected]
(509) 343-8515
(360) 570-4427
Taylor Hoffman-Ballard, E.I.T.
Stormwater Research Engineer
HDR, Inc.
1401 E. Trent Ave., Suite 101
Spokane, WA 99202
[email protected]
(509) 343-8477
Proposal and QAPP Peer Review and Contact Information
Donald D. Carpenter, PhD, PE, LEED AP
Drummond Carpenter, PLLC
Vice President & Principal
9085 Montezuma
Kalamazoo, MI 49009
[email protected]
(248) 763-4099
FINAL QAPP
SAND FILTER SIDEWALK VAULT BMP
November 1, 2018
Page | iii
Document History
This document was developed following the Eastern Washington (EWA) Detailed Study Design
Proposal and Quality Assurance Project Plan Template for Structural Best Management Practices
(BMPs). A copy of the template is located on the City of Spokane Valley’s website at the following
web link: http://www.spokanevalley.org/content/6836/6896/6914/8301/10121/default.aspx
The Detailed Study Design Proposal (Proposal) was submitted to Ecology on June 30, 2017.
Ecology approved the Proposal via email to Spokane County on November 8th, 2017. Appendix A
contains a copy of the email along with Ecology’s comments on the Proposal. Appendix B contains
a summary of HDR’s responses to Ecology’s comments including how the comments were
incorporated into the Quality Assurance Project Plan (QAPP).
The draft QAPP was reviewed by members of the Technical Advisory Group (TAG) in April 2018.
Appendix C contains a summary of the TAG’s comments along with a summary of HDR’s
response to these comments including how the comments were addressed in this document. The
QAPP was submitted to Ecology by the May 8, 2018 deadline for their review and comment.
Comments from Ecology on the QAPP were provided via email on August 30th. Appendix D
contains a copy of Ecology’s QAPP review comments along with HDR’s responses to the
comments including how the comments were incorporated into the final QAPP document.
November 1, 2018
FINAL QAPP
SAND FILTER SIDEWALK VAULT BMP
November 1, 2018
Page | v
Distribution List
Name, Title
Organization
Contact Information:
E-mail, Telephone
Jake Saxon,
Project Manager
Spokane County
[email protected]
509-477-7245
Matt Zarecor
Assistant County Engineer
Spokane County
[email protected]
509-477-7255
Bill Gale
Stormwater Utility Manager
Spokane County
[email protected]
509-477-7261
Ethan Murnin
Stormwater Engineer
Spokane County
[email protected]
509-477-7261
Bill Aukett
Stormwater Program
Manager
City of Moses Lake
[email protected]
509-764-3792
Rob Buchert,
Stormwater Services
Program Manager
City of Pullman
[email protected]
509-338-3314
Nigel Pickering
Research Associate
Professor
Washington State
University
[email protected]
509-335-8624
Danielle Mullins
Stormwater Lead
City of West Richland
[email protected]
509-967-5434
Doug Howie,
Reviewer Structural and
Operational BMP Studies
Department of Ecology
[email protected]
360-407-6444
Karen Dinicola,
Phase 2-3a Gross Grant
Ecology Project Manager
Department of Ecology
[email protected]
360.407.6550
Brandi Lubliner,
Reviewer Monitoring
System Designs
Department of Ecology
[email protected]
360.407.7140
Adriane Borgias,
WQ Project Manager
Department of Ecology
[email protected]
509-329-3515
Aimee Navickis-Brasch,
Senior Stormwater Engineer
HDR, Inc.
[email protected]
509-343-8515
Taylor Hoffman-Ballard,
SW Research Engineer
HDR, Inc.
[email protected]
509-343-8477
Chad Wiseman,
Water Quality Specialist
HDR, Inc.
[email protected]
360-570-4427
Ed Griffenberg,
Senior Operations Specialist
HDR, Inc.
[email protected]
425-245-9131
Donald Carpenter
QAPP Peer Review
Drummond Carpenter,
PLLC
[email protected]
248-763-4099
Kathy Sattler, Laboratory
Project Manager
Anatek Laboratories
[email protected]
509-838-3999
Stephen Burchett
Environmental Engineer
Principal
Budinger & Associates
[email protected]
509-535-8841
FINAL QAPP
SAND FILTER SIDEWALK VAULT BMP
November 1, 2018
Page | vi
1.0
Table of Contents
DOCUMENT HISTORY ……………………………………………………………………………………………………………………… III
SIGNATURE PAGE …………………………………………………………………………………………………………………………….. IV
DISTRIBUTION LIST ……………………………………………………………………………………………………………………………V
1.0
TABLE OF CONTENTS ………………………………………………………………………………………………………………. VI
2.0
EXECUTIVE SUMMARY ………………………………………………………………………………………………………………. 1
3.0
INTRODUCTION AND BACKGROUND ……………………………………………………………………………………. 2
3.1
INTRODUCTION TO THE STRUCTURAL BMP…………………………………………………………………………………. 2
3.2
PROBLEM DESCRIPTION …………………………………………………………………………………………………………….. 3
3.3
RESULTS OF COLUMN TESTING SAND MEDIA ………………………………………………………………………………. 4
3.4
REGULATORY REQUIREMENTS ………………………………………………………………………………………………….. 12
4.0
PROJECT OVERVIEW …………………………………………………………………………………………………………………. 14
4.1
STUDY GOAL ………………………………………………………………………………………………………………………….. 14
4.2
STUDY DESCRIPTION AND OBJECTIVES ……………………………………………………………………………………… 14
4.3
STUDY LOCATION …………………………………………………………………………………………………………………… 15
4.4
DATA NEEDED TO MEET OBJECTIVES………………………………………………………………………………………… 16
4.5
TASKS REQUIRED TO CONDUCT STUDY …………………………………………………………………………………….. 18
4.6
POTENTIAL CONSTRAINTS ……………………………………………………………………………………………………….. 19
5.0
ORGANIZATION AND SCHEDULE………………………………………………………………………………………….. 20
5.1
KEY PROJECT TEAM MEMBERS: ROLES AND RESPONSIBILITIES …………………………………………………….. 20
5.2
PROJECT SCHEDULE ………………………………………………………………………………………………………………… 22
5.3
BUDGET AND FUNDING SOURCES …………………………………………………………………………………………….. 23
6.0
QUALITY OBJECTIVES ………………………………………………………………………………………………………………. 24
6.1
PRECISION ……………………………………………………………………………………………………………………………… 29
6.2
BIAS ………………………………………………………………………………………………………………………………………. 29
6.3
REPRESENTATIVENESS……………………………………………………………………………………………………………… 30
7.0
EXPERIMENTAL DESIGN ………………………………………………………………………………………………………….. 32
7.1
STUDY DESIGN OVERVIEW ………………………………………………………………………………………………………. 32
7.2
TEST-SITE(S) SELECTION PROCESS …………………………………………………………………………………………….. 36
7.3
THE STRUCTURAL BMP SYSTEM SIZING ……………………………………………………………………………………. 36
7.4
TYPE OF DATA BEING COLLECTED ……………………………………………………………………………………………. 39
7.5
PRECIPITATION MONITORING ………………………………………………………………………………………………….. 40
7.6
WATER QUALITY SAMPLING ……………………………………………………………………………………………………. 42
7.7
INFILTRATION TESTING ……………………………………………………………………………………………………………. 43
7.8
SEDIMENT SAMPLING ……………………………………………………………………………………………………………… 43
7.9
SAND FILTER MEDIA MATERIAL TESTING …………………………………………………………………………………. 43
8.0
SAMPLING PROCEDURES ………………………………………………………………………………………………………… 45
8.1
PROCEDURES FOR COLLECTING FIELD MEASUREMENTS ……………………………………………………………… 45
8.1.1
STORM SELECTION AND TRACKING ………………………………………………………………………………………….. 45
8.1.2
STORM MONITORING EQUIPMENT MAINTENANCE…………………………………………………………………….. 46
8.1.3
PREPARING STORMWATER MONITORING EQUIPMENT FOR STORM SAMPLING ………………………………. 49
8.1.4
STORMWATER GRAB SAMPLING ……………………………………………………………………………………………….. 53
FINAL QAPP
SAND FILTER SIDEWALK VAULT BMP
November 1, 2018
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8.1.5
STORMWATER SAMPLE COLLECTION AND PROCESSING ……………………………………………………………… 55
8.1.6
MONITORING EQUIPMENT DATA DOWNLOAD ………………………………………………………………………….. 57
8.1.7
SEDIMENT ACCUMULATION RATE ……………………………………………………………………………………………. 57
8.1.8
FALLING HEAD TEST ………………………………………………………………………………………………………………. 59
8.2
CONTAINERS, PRESERVATION METHODS, HOLDING TIMES…………………………………………………………. 60
8.3
EQUIPMENT DECONTAMINATION …………………………………………………………………………………………….. 62
8.4
SAMPLE IDENTIFICATION …………………………………………………………………………………………………………. 62
8.5
CHAIN OF CUSTODY ……………………………………………………………………………………………………………….. 62
8.6
FIELD LOG REQUIREMENTS ……………………………………………………………………………………………………… 63
9.0
MEASUREMENT PROCEDURES ……………………………………………………………………………………………….. 64
9.1
PROCEDURES FOR COLLECTING FIELD MEASUREMENTS ……………………………………………………………… 64
9.2
LABORATORY PROCEDURES ……………………………………………………………………………………………………… 64
9.3
SAMPLE PREPARATION METHODS…………………………………………………………………………………………….. 66
9.4
SPECIAL METHOD REQUIREMENTS……………………………………………………………………………………………. 66
9.5
LAB(S) ACCREDITED FOR METHODS ………………………………………………………………………………………….. 66
10.0 QUALITY CONTROL ………………………………………………………………………………………………………………….. 67
10.1
FIELD QC REQUIRED ……………………………………………………………………………………………………………….. 67
10.2
LABORATORY QC REQUIRED ……………………………………………………………………………………………………. 68
10.3
CORRECTIVE ACTION ………………………………………………………………………………………………………………. 68
11.0 DATA MANAGEMENT PLAN PROCEDURES ………………………………………………………………………….. 70
11.1
DATA RECORDING & REPORTING REQUIREMENTS ……………………………………………………………………… 70
11.2
ELECTRONIC TRANSFER REQUIREMENTS …………………………………………………………………………………… 70
11.3
LABORATORY DATA PACKAGE REQUIREMENTS …………………………………………………………………………. 71
11.4
PROCEDURES FOR MISSING DATA…