Eastern Washington Stormwater Effectiveness Studies
Quality Assurance Project Plan
Private Residential BMP Owner Awareness Effectiveness
Study
Study Classification: ï‚£
Structural BMP ï‚£
Operational BMP ✓Education & Outreach
Study Objective:
✓Evaluate Effectiveness 
Compare Effectiveness
Prepared By:
Kelsey Grover, Stormwater Technician
Public Works Department
1350 McKittrick Street, Suite A
Wenatchee, WA 98801
509-888-3273
Proposal Public Information
The proposal will be available on the regional Wenatchee Valley Stormwater Technical Advisory
Committee (WVSTAC) webpage hosted by the City of Wenatchee,
www.wenatcheewa.gov/wvstac.
Proposal Author and Contact Information
Kelsey Grover, Stormwater Technician
City of Wenatchee, Public Works Department
1350 McKittrick Street, Suite A
Wenatchee, WA 98801
509-888-3273
Date 2/8/2022
Date
ity ofW~Entity
Signature Page
This section will be completed for the QAPP.
by:
Jennifer Lange, Douglas County, Partner Entity
3/12>2z
Date
Garren Melton, City of East Wenatchee, Partner Entity
<.±
Shilo Sprouse, City of~rtner Entity
Date
Andrea Jede I, Department of Ecology
Date
Brandi Lubliner, Department of Ecology
2/10/22
2/11/2022
Distribution List
Name, Title
Organization
Contact Information: Address, Telephone, E-mail
Jessica Shaw
Deputy Public Works Director-
Utilities
City of Wenatchee
1350 McKittrick, Wenatchee, WA 98801
Phone: 509-888-3235
E-Mail: [email protected]
Kelsey Grover
Stormwater Technician
City of Wenatchee
1350 McKittrick, Wenatchee, WA 98801
Phone: 509-888-3273
E-Mail: [email protected]
Jason Detamore
Environmental Manager
Chelan County
316 Washington St. Ste 402, Wenatchee WA, 98801
Phone: 509-664-6415
E-Mail: [email protected]
Garren Melton
Natural Resource Specialist
City of East
Wenatchee
271 9th St NE, Ste A, East Wenatchee, WA, 98802
Phone: 509-884-1829
E-Mail: [email protected]
Jennifer Lange, PE
Assistant County Engineer
Douglas County
140 19th St NW, Ste A, East Wenatchee WA, 98802
Phone: 509-884-7173
E-Mail: [email protected]
Shilo Sprouse
Stormwater Services Program
Manager
City of Pullman
325 Paradise St, Pullman, WA, 99163
Phone: 509-338-3314
E-Mail: [email protected]
Andrea Jedel
Municipal Stormwater Permit
Implementation Planner
WA Department of
Ecology
1250 W. Alder St. Union Gap, WA 98903-0009
Phone: 509-575-2807
E-Mail: [email protected]
Brandi Lubliner, PE
QA Coordinator
WA Department of
Ecology
PO Box 47600, Olympia, WA. 98504-7600
Phone: 360-407-7140
E-Mail: [email protected]
Doug Howie, PE
WA Department of
Ecology
PO Box 47600, Olympia, WA. 98504-7600
Phone: 360-407-6444
E-Mail: [email protected]
Abbey Stockwell
WA Department of
Ecology
PO Box 47600, Olympia, WA. 98504-7600
Phone: 360-407-7221
E-Mail: [email protected]
1.0
Table of Contents
Signature Page ………………………………………………………………………………………………………………………… 3
Distribution List ………………………………………………………………………………………………………………………….. 4
1.0 Table of Contents …………………………………………………………………………………………………………………. 5
List of Figures ………………………………………………………………………………………………………………………….. 6
List of Tables …………………………………………………………………………………………………………………………… 6
2.0
Executive Summary ……………………………………………………………………………………………………….. 7
3.0
Background ……………………………………………………………………………………………………………………….. 8
3.1 Problem Description ……………………………………………………………………………………………………….. 8
3.2 Results of Prior Studies ……………………………………………………………………………………………………. 9
3.3 Regulatory Requirements …………………………………………………………………………………………………. 9
4.0
Project Overview ………………………………………………………………………………………………………………. 9
4.1 Study Goal………………………………………………………………………………………………………………………. 9
4.2 Study Description and Objectives …………………………………………………………………………………… 10
4.3 Study Location and/or Target Population ………………………………………………………………………… 10
4.4 Data Needed to Meet Objectives …………………………………………………………………………………….. 11
4.5 Tasks Required to Conduct Study …………………………………………………………………………………… 11
4.6 Potential Constraints ……………………………………………………………………………………………………… 12
4.7 Considered Mitigation Approach Alternatives …………………………………………………………………. 12
5.0
Organization and Schedule ………………………………………………………………………………………………… 13
5.1 Key Project Team Members: Roles and Responsibilities ……………………………………………………… 13
5.2 Project Schedule ……………………………………………………………………………………………………………. 15
5.3 Budget and Funding Sources ………………………………………………………………………………………….. 15
6.0
Quality Objectives …………………………………………………………………………………………………………….. 16
7.0
Experimental Design …………………………………………………………………………………………………………. 20
7.1 Study Design …………………………………………………………………………………………………………………. 20
7.2 Process for Selecting the Test-Site and Target Population ……………………………………………. 20
7.3 Type of Data being Collected ……………………………………………………………………………………… 21
7.4 Other Education & Outreach Programs ……………………………………………………………………. 21
8.0
Instrument Design and Development …………………………………………………………………………………. 21
8.1 Instrument Design …………………………………………………………………………………………………………. 22
8.2 Procedures for Collecting Data……………………………………………………………………………………….. 22
8.3 Instrument Validation ………………………………………………………………………………………………… 22
9.0
Quality Control…………………………………………………………………………………………………………………. 23
9.1 Study QC Procedures …………………………………………………………………………………………………….. 23
9.2 Corrective Action ………………………………………………………………………………………………………….. 23
10.0 Data Management Plan Procedures……………………………………………………………………………………… 23
10.1 Data Identification …………………………………………………………………………………………………………. 23
10.2 Data Recording & Reporting Requirements …………………………………………………………………….. 24
10.3 Procedures for Missing Data ………………………………………………………………………………………….. 24
10.4 Acceptance Criteria for Existing Data …………………………………………………………………………….. 24
11.0 Audits ……………………………………………………………………………………………………………………………… 25
12.0 Data Verification and Usability Assessment …………………………………………………………………………. 26
12.1 Data Verification …………………………………………………………………………………………………………… 26
12.2 Data Usability Assessment …………………………………………………………………………………………….. 26
13.0 Data Analysis Methods ……………………………………………………………………………………………………… 26
13.1 Hypothesis Testing ………………………………………………………………………………………………………… 26
13.2 Quantitative & Qualitative Data Analysis Methods ………………………………………………………….. 27
13.3 Data Presentation Methods …………………………………………………………………………………………….. 27
14.0 Reporting …………………………………………………………………………………………………………………………. 27
14.1 Final Reporting ……………………………………………………………………………………………………………… 27
14.2 Dissemination of Project Documents ………………………………………………………………………………. 28
15.0 References ……………………………………………………………………………………………………………………….. 29
16.0 Appendices ………………………………………………………………………………………………………………………. 30
List of Figures
Figure1: Wenatchee Valley Municipal Stormwater Boundaries ……………………………………………11
List of Tables
Table 1: Potential Constraints and Subsequent Mitigation Approach ……………………………………………….. 12
Table 2: Key Project Team Members: Roles and Responsibilities ……………………………………………………. 13
Table 3: Study Timeline ………………………………………………………………………………………………………….. 15
Table 4: Study Cost Breakdown ………………………………………………………………………………………………….. 16
Table 5: Data Quality Indicators and Measurement Performance Criteria …………………………………………. 17
Table 6: Types of Data Being Collected ……………………………………………………………………………………….. 21
Table 7: Audits ………………………………………………………………………………………………………………………….. 25
Table 8: Data Verifier Tasks ……………………………………………………………………………………………………….. 26
Table 9: Effectiveness Study Reporting…………………………………………………………………………………………. 29
2.0
Executive Summary
In 2011, the Eastern Washington Phase II Municipal Stormwater Permit (Permit) began requiring
permittees to develop and implement a stormwater management program element to control
stormwater runoff from new and re-development projects through the usage of post-construction
stormwater best management practices (BMPs). The Permit also required permittees to establish
a mechanism to ensure privately owned post-construction BMPs are maintained to continue to
achieve water quality and environmental benefits. The goal of the proposed study is to assess the
effectiveness of the regulatory mechanism, the recorded Operations and Maintenance (O&M)
agreement, at informing owners about BMPs and their responsibility to maintain BMPs. The
present study involves a survey of residents in single family homes in subdivisions which were
one acre or larger and have one or more post-construction stormwater BMPs serving more than
one home located within the municipal permit boundaries of the Wenatchee Valley. The study
will assess BMP owner awareness between a test group consisting of subdivisions which were
required to implement an O&M agreement and a control group consisting of subdivisions built
prior to the requirement to implement an O&M agreement. The survey will be used to evaluate
the knowledge, attitude, and practices of residents in subdivisions with an O&M agreement and
those without an O&M agreement to assess their overall awareness of their BMPs and
responsibility to maintain BMPs. The study results are anticipated to show how effective the
O&M agreement is at informing residents of their ownership and responsibility to maintain
BMPs. The study results will be presented in a final report presenting trends in owner awareness
for stormwater BMPs and will provide recommendations for improving education and outreach
efforts for private BMP owners.
3.0
Background
Increasingly dense development within urbanized areas has required improved methods to
manage stormwater runoff from impervious surfaces. The use of pipes and catch basins was
adequate for a time, but rapid urbanization, persistent degradation of natural landscapes, water
quality, and climate change-related increases in the amount and intensity of rainfall have all
made stormwater management a high priority. To prevent or minimize water quality impacts of
new and redevelopment projects, Eastern Washington Phase II Municipal Stormwater permittees
were required to develop, implement, and enforce a program to address post-construction
stormwater runoff from public and private projects beginning in 2011. The minimum
requirement set forth by the Permit was a regulatory mechanism for projects meeting a one-acre
area threshold to manage a percentage of stormwater onsite using post-construction best
management practices (BMPs). Permitted jurisdictions were also required to implement a
mechanism to ensure long-term maintenance of the BMPs.
The Permit states that project proponents shall ensure implementation of long-term operation and
maintenance standards to protect water quality and reduce the…