Quality Assurance Project Plan:
Garland Avenue Biochar
Amended Storm Garden Pollutant
Removal Efficacy –SWMP
Effectiveness Study
February 2019
City of Spokane, Washington
Wastewater Management Department
909 East Sprague Avenue
Spokane, Washington 99203
Quality Assurance Project Plan: Garland Avenue Biochar
Amended Storm Garden Pollutant Removal Efficacy –
SWMP Effectiveness Study
Prepared for:
Washington State Department of Ecology
(In accordance with S8.B.6 of the Eastern Washington Phase II Municipal Stormwater
Permit [WAR046505])
Submitted by:
James George III
Wastewater Management Department
City of Spokane, Washington
Wastewater Management Department
909 East Sprague Avenue
Spokane, Washington 99203
Quality Assurance Project Plan: Garland Avenue Biochar Amended Storm Garden Pollutant Removal Efficacy –
SWMP Effectiveness Study
City of Spokane Wastewater Department February 2019
Page 2 of 40
TABLE OF CONTENTS
1.0
Introduction …………………………………………………………………………………………………………………………………………………… 6
2.0
Background ………………………………………………………………………………………………………………………………………………….. 6
2.1
Spokane River Basin …………………………………………………………………………………………………………………………………. 7
2.2
Biochar ……………………………………………………………………………………………………………………………………………………… 7
2.3
Regulatory Requirements …………………………………………………………………………………………………………………………. 8
2.4
Project Location Area ……………………………………………………………………………………………………………………………….. 8
2.5
Preliminary Study …………………………………………………………………………………………………………………………………….. 9
3.0
Logistical CHALLENGES ………………………………………………………………………………………………………………………………10
3.1
Practical Constraints ………………………………………………………………………………………………………………………………..10
4.0
Project Description ………………………………………………………………………………………………………………………………………11
4.1
Project Goals …………………………………………………………………………………………………………………………………………..11
4.2
Sampling Parameters of Interest …………………………………………………………………………………………………………….13
5.0
Organization and Schedule ………………………………………………………………………………………………………………………..14
5.1
Roles and Responsibilities………………………………………………………………………………………………………………………..14
5.2
Special Training and Certifications …………………………………………………………………………………………………………16
5.3
Study Schedule ………………………………………………………………………………………………………………………………………..16
5.4
Study Schedule Limitations ………………………………………………………………………………………………………………………17
5.5
Sampling Collection Frequency Schedule ……………………………………………………………………………………………….17
5.6
Sampling Constituents ……………………………………………………………………………………………………………………………..18
5.7
Budget and Funding ………………………………………………………………………………………………………………………………..19
6.0
sampling process design (Study design) ……………………………………………………………………………………………………..19
6.1
Design Area …………………………………………………………………………………………………………………………………………….19
6.2
Field Measurements …………………………………………………………………………………………………………………………………19
6.3
Storm Event Measurements ……………………………………………………………………………………………………………………..19
6.4
Composite Stormwater Samples ……………………………………………………………………………………………………………..20
6.5
Storm Events …………………………………………………………………………………………………………………………………………….21
6.6
Observing Rainfall Predictions ………………………………………………………………………………………………………………..21
6.7
Storm Event Staff Deployment ………………………………………………………………………………………………………………..22
7.0
Data Quality Objectives …………………………………………………………………………………………………………………………….22
7.1
Decision Quality Objectives (DQOs) ……………………………………………………………………………………………………….22
7.2
Measurement Quality Objectives (MQOs) ……………………………………………………………………………………………..22
7.3
Targets for Precision, Bias, and Sensitivity ……………………………………………………………………………………………..24
7.3.1
Precision …………………………………………………………………………………………………………………………………………..24
Quality Assurance Project Plan: Garland Avenue Biochar Amended Storm Garden Pollutant Removal Efficacy –
SWMP Effectiveness Study
City of Spokane Wastewater Department February 2019
Page 3 of 40
7.3.2
Bias …………………………………………………………………………………………………………………………………………………..25
7.3.3
Sensitivity …………………………………………………………………………………………………………………………………………25
7.4
Targets for Comparability, Representativeness, and Completeness ………………………………………………………25
7.4.1
Representativeness …………………………………………………………………………………………………………………………..25
7.4.2
Completeness …………………………………………………………………………………………………………………………………..25
8.0
Sampling (Field) Procedures ……………………………………………………………………………………………………………………….25
8.1
Equipment Decontamination Procedures …………………………………………………………………………………………………25
8.1.1
Sample Bottles …………………………………………………………………………………………………………………………………26
8.1.2
Composite Sampling Equipment ………………………………………………………………………………………………………26
8.2
Sampling Handling and Custody …………………………………………………………………………………………………………….26
8.2.1
Sample Identification ……………………………………………………………………………………………………………………….26
8.2.2
Sample Transportation …………………………………………………………………………………………………………………….26
8.2.3
Sample Preservation ………………………………………………………………………………………………………………………..26
8.2.4
Sample Processing …………………………………………………………………………………………………………………………..27
8.2.5
Holding Times …………………………………………………………………………………………………………………………………..27
8.2.6
Chain-of-Custody Forms …………………………………………………………………………………………………………………..27
8.3
Sample Equipment Installation ………………………………………………………………………………………………………………..27
8.4
Sample Equipment Retrieval……………………………………………………………………………………………………………………27
9.0
Measurement Procedures ……………………………………………………………………………………………………………………………28
9.1
Analytical Methods, Reporting Limits, and Containers ……………………………………………………………………………28
9.2
Sample Volume Requirements …………………………………………………………………………………………………………………28
10.0
Quality Control (QC) Procedures ……………………………………………………………………………………………………………28
10.1
Field and Lab QC Required ………………………………………………………………………………………………………………..28
10.2
Corrective Action Processes …………………………………………………………………………………………………………………28
11.0
Data Management Procedures ……………………………………………………………………………………………………………….28
11.1
Documents and Records ……………………………………………………………………………………………………………………….28
11.2
Field Operation Records ……………………………………………………………………………………………………………………..29
11.3
Laboratory Records …………………………………………………………………………………………………………………………….29
11.4
Laboratory Data Verification ……………………………………………………………………………………………………………..30
12.0
Audits and Reports ………………………………………………………………………………………………………………………………….30
12.1
Audits …………………………………………………………………………………………………………………………………………………..30
12.2
Deficiencies, Nonconformance, and Corrective Action ………………………………………………………………………..30
12.3
Reporting …………………………………………………………………………………………………………………………………………….31
12.3.1
Field Summary …………………………………………………………………………………………………………………………………31
Quality Assurance Project Plan: Garland Avenue Biochar Amended Storm Garden Pollutant Removal Efficacy –
SWMP Effectiveness Study
City of Spokane Wastewater Department February 2019
Page 4 of 40
12.3.2
Quality Assurance/Quality Control Summary …………………………………………………………………………………31
12.3.3
Annual Report ………………………………………………………………………………………………………………………………….31
12.4.4
EIM/STORET data upload procedures …………………………………………………………………………………………….32
13.0
Data Verification and Validation ……………………………………………………………………………………………………………32
13.1
Data Review, Verification, and Validation ………………………………………………………………………………………….32
13.2
Verification and Validation Methods ………………………………………………………………………………………………….32
14.0
Data Quality (Usability) Assessment ……………………………………………………………………………………………………….33
14.1
Data Usability Assessment …………………………………………………………………………………………………………………..33
14.2
Data Quality Assessment Metrics ………………………………………………………………………………………………………..34
14.3
Data Analysis Methods ………………………………………………………………………………………………………………………..34
14.4
Treatment of Non-Detected Values …………………………………………………………………………………………………….34
15.0
Revision History ……………………………………………………………………………………………………………………………………….35
16.0
References ……………………………………………………………………………………………………………………………………………….36
TABLES
Table 1. Key Individuals and Responsibilities ……………………………………………………………………………………………………….15
Table 2. Study Schedule…