Final_QAPP_TRV_SamplingProject_v.0_20250425.pdf

FINAL

UNIFORM FEDERAL POLICY

QUALITY ASSURANCE PROJECT PLAN

FOR

WATER QUALITY SAMPLING FOR THE TIJUANA RIVER

VALLEY MONITORING PLAN

TIJUANA RIVER AND TRANSBOUNDARY CANYONS

SAN DIEGO COUNTY, CALIFORNIA

Prepared for

UNITED STATES INTERNATIONAL BOUNDARY & WATER COMMISSION

4191 NORTH MESA STREET

EL PASO, TX 79902-1441

Prepared by:

EGC|AGEISS, LLC

825 NORTH SAINT MARYS STREET, UNIT 202

SAN ANTONIO, TX 78205

APRIL 2025

THIS PAGE LEFT INTENTIONALLY BLANK

FINAL UFP-QAPP

Water Quality Sampling of the Tijuana River and Transboundary Canyons iii | P a g e

TABLE OF CONTENTS

LIST OF APPENDICES ............................................................................................................... IV

LIST OF FIGURES ....................................................................................................................... V

LIST OF TABLES ......................................................................................................................... V

LIST OF ACRONYMS & ABBREVIATIONS .......................................................................... VII

APPROVAL PAGE

RESPONSIBILITIES

PROJECT ORGANIZATION AND QAPP DISTRIBUTION

PERSONNEL QUALIFICATIONS AND SIGN-OFF SHEET

COMMUNICATION PATHWAYS

PROJECT PLANNING SESSION SUMMARY

PROJECT/DATA QUALITY OBJECTIVES

DATA MANAGEMENT

MEASUREMENT PERFORMANCE CRITERIA

PROJECT TASKS & SCHEDULE

LABORATORY DETECTION LIMITS

SAMPLING DESIGN AND RATIONALE

SAMPLING LOCATIONS AND METHODS

SAMPLE CONTAINERS, PRESERVATION, AND HOLD TIMES

FIELD QC SUMMARY

FIELD STANDARD OPERATING PROCEDURES

FIELD EQUIPMENT CALIBRATION, MAINTENANCE, TESTING, AND INSPECTION .. 62

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ANALYTICAL STANDARD OPERATING PROCEDURES

ANALYTICAL INSTRUMENT CALIBRATION

ANALYTICAL INSTRUMENT AND EQUIPMENT MAINTENANCE, TESTING, AND

INSPECTION

SAMPLE HANDLING, CUSTODY, AND DISPOSAL

ANALYTICAL QUALITY CONTROL AND CORRECTIVE ACTION

PROJECT DOCUMENTS AND RECORDS

ASSESSMENTS AND CORRECTIVE ACTION

DATA VERIFICATION AND VALIDATION INPUTS

DATA VERIFICATION PROCEDURES

DATA VALIDATION PROCEDURES

DATA VALIDATION AND USABILITY

Data Review, Verification, and Validation

Field Data Verification

Laboratory Data Verification

Laboratory Data Validation

Data Validation Criteria

DATA USABILITY ASSESSMENT

REFERENCES

LIST OF APPENDICES

A. SAMPLING LOCATIONS AND ANALYTICAL PARAMETERS

B. PROJECT SCHEDULE

C. STANDARD OPERATING PROCEDURES

D. CONTRACT LAB QAPPS AND CERTIFICATIONS

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LIST OF FIGURES

FIGURE 1. PROJECT ORGANIZATION & QAPP DISTRIBUTION

LIST OF TABLES

TABLE 1. ORGANIZATIONAL RESPONSIBILITIES

TABLE 2. COMMUNICATION PATHWAYS

TABLE 3. SAMPLING FREQUENCIES

TABLE 4. SAMPLING ANALYTES

TABLE 5. PROJECT TASKS & PLANNED SCHEDULE FOR YEAR 1

TABLE 6. LABORATORY DETECTION LIMITS FOR BACTERIA

TABLE 7. LABORATORY DETECTION LIMITS FOR METALS

TABLE 8. LABORATORY DETECTION LIMITS FOR PESTICIDES AND PCBS

TABLE 9. LABORATORY DETECTION LIMITS FOR PESTICIDES

TABLE 10. LABORATORY DETECTION LIMITS FOR SVOCS

TABLE 11. LABORATORY DETECTION LIMITS FOR TCDDS (WATER)

TABLE 12. LABORATORY DETECTION LIMITS FOR TCDDS (SEDIMENT)

TABLE 13. LABORATORY DETECTION LIMITS FOR VOCS (WATER)

TABLE 14. SAMPING LOCATIONS

TABLE 15. LABORATORY INFORMATION

TABLE 16. NUMBER OF SAMPLES TO BE COLLECTED DURING YEAR 1 SAMPLING

EVENTS

TABLE 17. FIELD STANDARD OPERATING PROCEDURES

TABLE 18. FIELD EQUIPMENT CALIBRATION

TABLE 19. ANALYTICAL STANDARD OPERATING PROCEDURES

TABLE 20. ANALYTICAL INSTRUMENT CALIBRATION

TABLE 21. PARTIES RESPONSIBLE FOR MAINTAINING CUSTODY OF SAMPLES

TABLE 22. SAMPLE COLLECTION AND FIELD RECORDS / PROJECT ASSESSMENTS

TABLE 23. PROJECT ASSESSMENT

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TABLE 24. LABORATORY DATA DELIVERABLES

TABLE 25. RESPONSIBILITIES FOR CONDUCTING PROJECT ASSESSMENTS

TABLE 26. INPUTS USED FOR DATA VERIFICATION AND VALIDATION

TABLE 27. PROCEDURES USED TO VERIFY PROJECT DATA

TABLE 28. PROCEDURES USED TO VALIDATE THE PROJECT DATA

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LIST OF ACRONYMS & ABBREVIATIONS

% Percent µg/L microgram per liter

CCB Continuing Calibration Blank

CCC Calibration Check Compound

CCV Calibration Check Valve

CoC Chain-of-custody

CR Confirmation Run

DQI Data Quality Indicator

DQO Data Quality Objective e.g. for example

EPA United Stated Environmental Protection Agency

ICB Initial Calibration Blank

ICV Initial Instrument Performance Check

LCS Laboratory Control Sample

LCS Laboratory Control Sample

LOD Limit of Detection

LOQ Limit of Quantitation

MB Method Blank

MDL Method Detection Limit mg/L milligram per liter mL milliliter

MPC Measurement Performance Criteria

MPN Most Probable Number

MPSL Marine Pollution Studies Laboratory

LIST OF ACRONYMS & ABBREVIATIONS (CON’T)

MS Mass Spectrometry

MSD Meso Scale Discovery

NA Not Available viii | P a g e

ND Non-Detect

NPDES National Pollutant Discharge Elimination System pg/L picogram per liter

PQO Project Quality Objectives

PT Proficiency Test

QA Quality Assurance

QAM Quality Assurance Manager

QAPP Quality Assurance Project Plan

QC Quality Control

RDL Reporting Detection Limit

REC Contact Water Recreation

RF Response Factor

SBITWP South Bay International Wastewater Treatment Plant

SM Standard Method

SOP Standard Operating Procedure

SPCC Specified Priority Pollutant Compound

SPoT Stream Pollution Trends Monitoring Program

SWAMP Surface Water Ambient Monitoring Program

TB Transboundary

TRV Tijuana River Valley

TRVMP Tijuana River Valley Monitoring Program

UFP-QAPP Uniform Federal Policy for Quality Assurance Project Plan

USIBWC United States International Boundary & Water Commission

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RESPONSIBILITIES

TABLE 1. ORGANIZATIONAL RESPONSIBILITIES

Organization Responsibility

USIBWC Submits all required reports to the State of California.

USIBWC San Diego Field Office Collects weekly bacteria samples at TRV-1 and submits samples to contracted laboratory (Pace).

EGC | AGEISS • Develops QAPP.

• Collects samples at TRV-1 through TRV-7 in accordance with the TRVMP.

• Submits collected samples to contracted labs.

• Submits analytical data, to include all files, to

USIBWC.

Contacted Labs Performs analytical analysis of samples (see

Laboratory Detection Limits section for which labs perform which analysis)

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PROJECT ORGANIZATION AND QAPP DISTRIBUTION

FIGURE 1. PROJECT ORGANIZATION & QAPP DISTRIBUTION

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PERSONNEL QUALIFICATIONS AND SIGN-OFF SHEET

Organization: USIBWC

Name Project Title/Role Signature/Date

Wayne Belzer Project Manager

Organization: Contractors

Name Project Title/Role Education/Experience Signature/Date

Wendy Arjo, PhD, CWB

Project Manager Doctorate of Fish and

Wildlife Biology (PhD) /

26 years of experience in overseeing technical deliverables, work plans, and Safety & Health plans

Scott Quint Field Supervisor I Bachelor of Science (BS) of Chemical Engineering /

20+ years of experience in fieldwork to include sample collection

Organization: Contracted Laboratory

Name Project Title/Role Signature/Date

Cari Bernota

Pace Analytical Services

Project Manager

Carol Battaglia

CalTest Analytical Laboratory

Project Manager

Raul Gonzalez

H2O Molecular

Project Manager

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COMMUNICATION PATHWAYS

TABLE 2. COMMUNICATION PATHWAYS

Communication

Driver Organization Name Contact Information

Procedure

(timing, pathway, documentation, etc.)

Point of contact for contractors

USIBWC Wayne

Belzer

915.832.4703 wayne.belzer@ibwc.gov

Oversees and reviews and approves all work associated with this project.

Point of contact with USIBWC and subcontractors

EGC|AGEISS Wendy

Arjo

360.701.6213 wendya@ageiss-inc.com

Point-of-contact with USIBWC and directs the sampling team.

Sampling fieldwork

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Directs all sampling activities and communicates with USIBWC to ensure access to sampling sites.

QAPP updates and project reports

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Submits all project reports to

USIBWC and makes any necessary updates to the project

QAPP. Also communicates with

Mr. Belzer for distribution of reports to any interested parties.

Stop work due to safety issues

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

All personnel have stop work authority for safety issues. Stop work actions will be communicated to Mr. Belzer.

QAPP changes prior to fieldwork

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Communicates changes/addendums to the QAPP to the project team and updates/distributes modifications as required to QAPP recipients.

QAPP changes during project execution

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Communicates and documents changes to field team and QAPP recipients as required.

Field corrective actions

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Communicates and documents changes to field team and QAPP recipients as required.

Sample receipt variances

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egc-inc.net

Directs meetings with sampling team and laboratory to identify the variance, provides path forward direction, documents variance and path forward, communicates with management team via a sample variance report.

Laboratory quality control variances

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Directs meetings with laboratory to identify the variance, provides path forward direction, documents variance and path forward, communicates with management team via a variance report.

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Communication

Driver Organization Name Contact Information

Procedure

(timing, pathway, documentation, etc.)

Analytical corrective actions/data verification/valida tion issues

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Directs meetings with laboratory to identify the variance, provides path forward direction, documents variance and path forward, communicates with management team via a variance report.

Analytical corrective actions/data verification/valida tion issues

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Directs meetings with laboratory to identify the variance, provides path forward direction, documents variance and path forward, communicates with management team via a variance report.

Data review corrective actions

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Meets with sampling team, discusses and documents issues and corrective actions. Submits

Corrective Action Report to Mr.

Belzer. Verifies corrective actions have been completed and are effective with the next sampling event.

QAPP

amendments

EGC|AGEISS Scott

Quint

210.324.7501 scott.quint@egcincpro.com

Any major changes to the QAPP must be approved by Mr. Belzer before the changes can be implemented.

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PROJECT PLANNING SESSION SUMMARY

Meeting Title: Project Kickoff Meeting, November 18, 2024 (Teleconference)

Purpose: Discuss project schedule and define the scope of the project

Attendees:

Participant Organization Role

Wendy Arjo EGC|AGEISS Project Manager/Wildlife Biologist

Rene Hefner EGC|AGEISS Program Manager

Scott Quint EGC|AGEISS Environmental Scientist

Zachary Hefner EGC|AGEISS Crew Member

Wayne Belzer USIBWC Environmental Engineer

Seone Jones USIBWC Contracting Officer

Morgan Rogers USIBWC Area Operations Manager – WWTP

Samuel Katzenstein USIBWC Civil Engineering Tech – WWTP

Emily Allen USIBWC In-Coming Area Operations Manager – WWTP

SUMMARY OF MEETING

• EGC|AGEISS has conducted sampling in this area previously and will be sampling per the requirements provided by the USIBWC. For the weekly sampling events at the Dairy Mart sampling location (TRV-1), EGC|AGEISS will provide sampling supplies and coolers to the

San Diego Field Office, who will collect and ship the samples to an EGC|AGEISS contracted lab.

• Sampling – quarterly, annual, bi-annual, and wet weather. For wet weather Mr. Quint stated he will be on site during the rain for the wet weather sampling. Mr. Quint asked what the range was for wet weather sampling (how many hours once rain starts/stops). Mr. Belzer will find that out- thinks it is 24-hours maximum.

• Lab supplies (e.g., coolers, sample bottles). May we ship them to the local IBWC office? Yes, ship to San Diego field office. USIBWC 2995 Clearwater Way, San Diego, CA 92154

• Reporting requirements and preferred format. Will give just raw data to USIBWC in digital format (e.g., CSV, PDF). Mr. Rogers thinks just doing an annual report (USIBWC does this) is maybe the way to submit. Need to see how the data comes in and ask what the Regional

Water Quality Control Board wants to see and the frequency. No deliverable from

EGC|AGEISS except raw data. Can submit site assessment notes to USIBWC if there are some.

• First event in 2025 and hoping that will be the rain event.

• Wait until QAPP approved and has to go to the Regional Water Quality Control Board before sampling. QAPP will go in with the monitoring plan that IBWC developed.

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NOTE: Per Attachment A of Order No. R9-2021-0001, dry weather is any period that is not categorized as wet weather, and wet weather is the period of time when a storm event produces

0.1 inches or greater within a 24-hour period plus 72 hours after, based on the Goat Canyon Pump

Station rain gauge, unless otherwise defined by another regulatory mechanism (e.g., a TMDL). Other rain gauges in the Tijuana River watershed may be provided for the San Diego Water Board to assess if transboundary flows in the Tijuana River main channel are attributable to wet weather. Also, Section

6.3.2.1.1.2 states that a dry weather Canyon Collector Transboundary Flow Event also constitutes a Spill Event when transboundary flows less than or equal to the canyon collector’s maximum design capacity is not captured by the canyon collector for treatment at the South Bay International

Wastewater Treatment Plant (SBIWTP) and disposal through the South Bay Ocean Outfall (SBOO)

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PROJECT/DATA QUALITY OBJECTIVES

State the Problem

USIBWC operates a 25-million gallon per day wastewater treatment plant, the South Bay

International Wastewater Treatment Plant (SBIWTP), in San Diego, California in the San Ysidro neighborhood adjacent to the Tijuana River and the US-Mexico border. The treatment plant treats wastewater that originates in Mexico and discharges the final effluent into the Pacific Ocean.

Additionally, USIBWC operates two canyon collectors that collect small transboundary flows from Smugglers Gulch and Goat Canyon and conveys the flows to the SBIWTP. There are four other canyons located along the border that also have transboundary flows into the United States that also can divert flows by gravity into the influent of the treatment plant.

The SBIWTP operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the San Diego office of the California Regional Water Quality Control Board (the

Board). The current permit number CA0108928 was adopted on May 12, 2021 as Order No. R9-

2021-0009 and amended on March 8, 2023 as Order No. R9-2023-0009. The order establishes the discharge limitations from the treatment plant as well as establishes the testing and reporting requirements to the Board. This includes the development and implementation of a routine testing program in the Tijuana River and associated canyons.

Per the amended order under Section 4.2 of Attachment E, USIBWC is to develop and submit a monitoring plan for the Tijuana River Valley to the Board. The order details the base monitoring program with the potential to expand the program with collaboration from stakeholders under the

IBWC Minute 320 program. USIBWC currently holds an operations contract that maintains the treatment plant and compliance of the permit for the effluent. USIBWC also currently holds a contract with the City of San Diego for the ocean monitoring program. This Tijuana River Valley

Monitoring Program (TRVMP) details the implementation of the monitoring plan in accordance with the permit.

Objective

The TRVMP is designed to answer the following questions for Canyon Collector Transboundary

Flows through Goat Canyon, Smugglers Gulch, Silva Drain, Canyon del Sol, and Stewart’s Drain:

(1) How far downstream do Canyon Collector Transboundary Flows and the pathogens and indicator bacteria that they carry travel after flowing through canyon collector system without being diverted for treatment? Under what circumstances do the pathogens and indicator bacteria they carry reach the ocean and travel to beaches with Contact Water

Recreation (REC-1) beneficial use? If these transboundary flows reach the ocean, do the flows cause or contribute to beach closures at downstream beaches?

(2) What are the concentrations of pathogens and indicator bacteria generated in Mexico that may flow through the canyon collector systems and into the Tijuana River Valley and the

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Tijuana River Estuary without being diverted for treatment? What is the degree of temporal variability?

(3) What pollutants are generated in Mexico that may flow through the canyon collector systems and cross into the Tijuana River Valley and the Tijuana River Estuary without being diverted for treatment? What is the degree of temporal variability? Are pollutants binding to the sediments that settle and concentrate in the river valley? If so, what is the level of toxicity and half-life?

(4) What trash pollution is generated in Mexico that may flow through the canyon collector systems and cross into the Tijuana River Valley and the Tijuana River Estuary? What is the composition of the trash?

The Tijuana River Valley water quality monitoring is designed to answer the following questions:

(1) What is the frequency and volume of dry and wet weather transboundary flows?

(2) What are the possible sources of transboundary flows?

(3) What pollutants are present in dry and wet weather transboundary flows and what is their concentration?

(4) Do pollutants in transboundary flows affect beneficial uses of the Tijuana River and coastal ocean waters?

(5) What is the mass loading of pollutants to the Tijuana River Valley from Canyon Collector

Transboundary Flows over time?

(6) Do the transboundary flows that bypass the Stewart’s Drain canyon collector reach downstream waters? If so, to what extent do they contribute to impairments of the downstream waters?

(7) Are the canyon collector systems being properly operated and maintained to ensure compliance with the conditions of this Order?

The Tijuana River Valley sediment monitoring is designed to answer the following questions:

(1) What are the concentrations of pollutants in sediment at the canyon collector systems and how do the concentrations compare to Dairy Mart Bridge?

(2) Is the sediment quality changing over time?

(3) Is the concentration of pollutants at levels which would impact public health?

(4) Is the concentration of pollutants at levels which would degrade the benthic community of downstream surface waters?

(5) Is sediment accumulating at the monitoring location?

Identify Information Inputs

Water and sediment samples will be collected at the monitoring sites per the frequency outlined in

Table 3. Analytes for water and sediment collection are listed in Table 4. Appendix A lists the

15 | P a g e sampling sites and total number of samples to be collected (Table A1) and the analytical parameters for both water (Table A2) and sediment (Table A3).

TABLE 3. SAMPLING FREQUENCIES

Sampling Parameters

Monitoring

Location Name Frequency

Sites on the Tijuana River:

1. Fecal Coliforms and E.Coli TRV-1 Weekly

2. Water Parameters, Dry Weather (sampling preferably when there is TB flow at Stewart’s

Drain, or TB flow at the main channel)

TRV-1 and

TRV-7

Quarterly

3. Water Parameters, Wet Weather (1 first flush sample and 1 composite sample)

TRV-1 and

TRV-7

Annually

4. Sediment Parameters TRV-1 Twice per permit term1

Sites in the Transboundary (TB) Canyons and Drains:

5. Water Parameters, Dry Weather (1 sample from flow and 1 from pooled water)

TRV-2–6

Once per Canyon Collector

Transboundary flow event during dry weather

6. Water Parameters, Wet Weather (1 first flush sample and 1 composite sample) TRV-2–6 Annually

7. Sediment Parameters TRV-2–6 Twice per permit term1

8. Trash Assessment TRV-5 and TRV-6 Every two years

NOTES:

1 Sampling shall be spaced equally throughout the permit term to the extent possible.

• TRV-1 = Dairy Mart Bridge

• TRV-2 = Stewart’s Drain Canyon Collector at the international boundary

• TRV-3 = Silva Canyon Collector Drain at the international boundary

• TRV-4 = Canyon del Sol Collector at the international boundary

• TRV-5 = Smugglers Gulch 1 Diversion Structure (near the international boundary line)

• TRV-6 = Goat Canyon 1 Diversion Structure (near the international boundary line)

• TRV-7 = River Mouth

Project Boundaries

The project includes two sampling locations on the Tijuana River and five locations in the transboundary canyons and drains (see Figure A1 in Appendix A).

Analytical Approach

Samples will be collected for various analytes (see Table 4) in both water and sediment at predetermined sampling frequencies (e.g. weekly, quarterly, biannually, annually) as listed in the frequencies table above (see the “Identify Information Inputs” section). The collected data will be used to provide information on the baseline concentrations in the transboundary flows entering the

United States through the Tijuana River and adjacent canyons. Additionally, this data can also be used to determine impacts to the environment from transboundary flows due to infrastructure challenges resulting in discharge of untreated wastewater.

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TABLE 4. SAMPLING ANALYTES

Analyte Water Sediment

Visual Observations X

Flow Rate X

Conductivity X

Temperature X pH X

Dissolved Oxygen X

Turbidity X

Total Suspended Solids (TSS) X cBOD X

Ammonia (as N) X

Nitrogen, Total X

Phosphorous, Total (as P) X

E.Coli X

Enterococci X

Fecal Coliforms X

Norovirus and Enterovirus X

Surfactants, Anionic, Methylene Blue Active Substances (MBAS) X

Heavy Metals X

Mercury (Total and Methyl) X

Organochlorine Pesticides X X

Organophosphorus Pesticides X X

PAHs X

PCB Congeners X

Volatile Organic Compounds (VOCs) X

Semi-Volatile Organic Compounds (SVOCs) X

Pyrethroid Pesticides X X

Neonicotinoid Pesticides X

Carbamate Pesticides X

Polybrominated Diphenyl Ethers (PBDEs) X X

Nonylphenols and Nonylphenol ethoxylates X X

Total Cyanide (Remaining Priority Pollutants) X

2,3,7,8-Tetrachlorodibenzo-p-Dioxin (TCDD) (Remaining Priority

Pollutants) X

Grain Size X

Total Organic Carbon (TOC) X

Heavy Metals (Total) X

Mercury (Total and Methyl) X

Polycyclic Aromatic Hydrocarbons (PAHs) X

Polychlorinated Biphenyl (PCB) Congeners X

Develop the Data Acquisition Plan

Laboratory analysis reports will be submitted electronically within 30 days from the date the sample was taken to USIBWC.

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Data Upload to CEDEN

USIBWC will collect weekly bacteria samples at Dairy Mart Bridge and submit to the contracted laboratory analysis. USIBWC will also collect all data for the sampling plan and submit to the regional board on a quarterly basis through the California Integrated Water Quality System

(CIWQS) and CEDEN - California Environmental Data Exchange Network.

Data Analysis

Laboratory data will be reviewed and analyzed as follows:

• Sediment data will be compared among Tijuana River Valley monitoring locations and to similar sites in the SPoT program.

• Tijuana River Transboundary Flow Events and dry weather Canyon Collector

Transboundary Flow Events (i.e., dry weather transboundary flows at monitoring locations

TRV-2 through TRV-6), will include the information listed below in the monthly Self-

Monitoring Report (SMR). NOTE: A Transboundary Flow Event is any flow across the U.S.–

Mexico international border under dry or wet weather conditions to any one of the five canyons equipped with a canyon collector system, including Smuggler’s Gulch, Goat Canyon, Canyon del Sol, Stewart’s Drain, or Silva Drain, that is not captured by the canyon collector system for treatment at the SBIWTP and disposal through the SBOO.

o A description of the event and its cause (if known);

o The location(s) where the event occurred;

o The duration of the event (i.e., flow start and stop time, or expected stop time if ongoing due to repairs and maintenance);

o The volume of the event including a description of any methodology, standardized templates, tables, or pictures used to provide the volume estimate (or flow rate if ongoing); and o Any coordination with interested stakeholders to determine the reasons why the event occurred, and any corrective actions planned or taken.

• Quarterly monitoring reports on the TRVMP will include the following information:

o A description of the monitoring activities conducted during the quarter;

o All analytical data gathered during the quarter, including laboratory reports; and o An analysis of the data in terms of human health and ecological impacts.

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DATA MANAGEMENT

Data Management Process

Data will be managed in accordance with the EGC Standard Operating Procedure (SOP) 6—Data

Validation, which is located in Appendix C of this QAPP, and any applicable USIBWC information resource management policies.

Quantitative measurements are taken in the field by personnel using multi-parameter instruments.

Qualitative measurements, which include observational data (i.e., weather conditions), are also taken in the field. Samples for laboratory analysis are also collected. The senior scientist has the initial responsibility to ensure that all pertinent information is recorded correctly and in the proper units. All chain-of-custody (CoC) forms will be checked by the senior scientist prior to shipping the samples to the appropriate contracted laboratory to verify that all the pertinent required information has been included. All laboratories will ensure that the CoC forms are properly filled out, and that all samples received are acceptable. All hand-entered data must be recorded legibly and with special care to maintain the decimal in its proper location. Field measurements and sample collection are performed in accordance with the procedures found in SOP 3 (see Appendix C).

Field data will be captured on field forms and transferred to a running project Excel spreadsheet by the senior scientist, and laboratory results and CoC forms will be reported to EGC|AGEISS

(i.e., senior scientist) by the laboratories. Laboratory data will be entered into the project spreadsheet for tracking of results, which will be included in the final project report. Data entered into the project spreadsheet will be checked by EGC|AGEISS team members to ensure accuracy.

Even when accepted protocols are followed in collecting and analyzing environmental samples, data loss may occur. Data delivery and discussion between USIBWC and other project team members follows the lines of communication established in the organizational chart in Figure 1.

Data Storage and Transfer

Laboratory analytical data is managed by the Laboratory Management Information System (LIMS) and transferred to the EGC|AGEISS senior scientist electronically as PDF report, Excel file, and

CSV file. Once received, these reports, along with scanned copies of the field logbook and field data forms, are stored on a secured hard drive maintained by the senior scientist and backed up to a secured cloud maintained by EGC. On a monthly basis, the senior scientist will electronically transfer the laboratory reports for the previous month’s sampling event to the USIBWC project manager, and at the conclusion of the project, a final project report will be prepared, and all collected data (e.g., logbook, field data forms, laboratory reports) will be transferred to the

USIBWC project manager.

USIBWC will submit all data for the sampling plan (USIBWC and EGC|AGEISS collected data) and submit to the regional board on a quarterly basis through the California Integrated Water

Quality System (CIWQS) and CEDEN - California Environmental Data Exchange Network. Data will be submitted to CEDEN in Microsoft Excel format per instruction as provided on the CEDEN

20 | P a g e website at https://ceden.org/ceden_datatemplates.shtml. Data will uploaded into the CIWQS as

.csv files for the laboratory results and PDF files for the laboratory reports, and a CIWQS-generated pdf with tabulated data.

https://ceden.org/ceden_datatemplates.shtml

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MEASUREMENT PERFORMANCE CRITERIA

Measurement performance criteria listed below were gathered from the contracted laboratories conducting the analysis for this project.

The Data Quality Indicators (DQIs) are defined as follows:

• Precision: Precision expresses the closeness of agreement, or degree of dispersion, between a series of measurements. Precision is a measure of the reproducibility of sample results.

• Accuracy: Accuracy is used to describe the agreement between an observed value and an accepted reference or true value.

• Representative: Representativeness is a qualitative measurement that describes how well the analytical data characterizes an area of concern. Many factors can influence how representative the analytical results are for an area sampled. These factors include the selection of appropriate analytical procedures, the sampling plan, matrix heterogeneity and the procedures and protocols used to collect, preserve, and transport samples.

• Comparability: Comparability refers to the equivalency of sets of data. This goal is achieved through the use of standard or similar techniques to collect and analyze representative samples.

• Completeness: Completeness is a quantitative measure that is used to evaluate how many valid analytical data were obtained in comparison to the amount that was planned.

Completeness is usually expressed as a percentage of usable analytical data.

• Bias: When QC data for analytical results indicates that low or high bias is present, this means that the true values of the target analytes are lower or higher than the reported concentration, respectively. Bias can also be indeterminate, which means that the analytical results have poor analytical precision or have conflicting bias in the data.

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Matrix: Surface Water

Analyte: Bacteria (9221, 9230D, 9260, EPA 1615, USDA MLG 41.04, EPA 1682)

Concentration Level: Low

Data Quality Indicator

(DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance

Criteria

QC Sample

Assesses Error for Sampling (S), Analytical (A), or both (S&A)

Overall Precision NA NA NA --

Contamination Yes Per batch No Growth A

Bias/Contamination Contamination:

Yes

Per Batch No Growth A

Accuracy/Representative NA NA NA --

Data Completeness Yes Every sample Review performed by QA department

A

Laboratory Contamination Yes Per batch No Growth A

Analytical Precision NA NA NA --

Analytical Accuracy/Bias

(laboratory)

Yes Positive controls performed per batch

Growth A

Analytical

Accuracy/Bias/Precision

(matrix interference)

NA NA NA --

23 | P a g e

Matrix: Surface Water

Analyte: Metals (EPA 200.7, 200.8, 6010, 7471)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV: Immediately following daily calibration

CCV: Every 10 samples

200.7 ICV: 5%

200.7 CCV: 10%

200.8 ICV: 10%

200.8 CCV: 15%

6010 ICV and CCV: 10%

7471 ICV and CCV: 10%

A

Contamination Yes ICB: Immediately after calibration

CCB: Every 10 samples

MB: Every batch of samples

< Reporting limit A

Bias/

Contamination

Yes Bias

LCS: Every batch of samples

Contamination:

ICB: Immediately after calibration

CCB: Every 10 samples

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV: Immediately following daily calibration

CCV: Every 10 samples

LCS, MS, MSD:

Every batch of samples

200.7 ICV: 5%

200.7 CCV: 10%

200.8 ICV: 10%

200.8 CCV: 15%

6010 ICV and CCV: 10%

7471 ICV and CCV: 10%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data Completeness Yes Every sample QA Review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

Analytical

Precision

Yes LCS: Every batch of samples

LCS: Varies per method.

Control limits are established by method criteria or by control charts.

A

24 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Analytical

Accuracy/Bias

(laboratory)

Yes ICV: Immediately following daily calibration

CCV: Every 10 samples

LCS: Every batch of samples

200.7 ICV: 5%

200.7 CCV: 10%

200.8 ICV: 10%

200.8 CCV: 15%

6010 ICV and CCV: 10%

7471 ICV and CCV: 10%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD: Every batch of samples

(MSD not required for 200.7 or 200.8)

Varies per method.

Control limits are established by method criteria or by control

25 | P a g e

Matrix: Surface Water

Analyte: Pesticides & PCBs (EPA 608, 8081, 8082, 8141)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV: Immediately following calibration

CCV: At the beginning of every sequence and every 12 hours

608: every parameter 15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

A

Contamination Yes MB: Every batch of samples

< Reporting limit A

Bias/

Contamination

Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS, MS, MSD:

Every batch of samples

608: every parameter 15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data

Completeness

Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

Analytical

Precision

Yes LCS: Every batch of samples

LCS: Varies per method.

Control limits are established by method criteria or by control charts

26 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Analytical

Accuracy/Bias

(laboratory)

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS: Every batch of samples

608: every parameter 15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD: Every batch of samples

Varies per method.

Control limits are established by method criteria or by control

27 | P a g e

Matrix: Surface Water

Analyte: Pesticides (EPA 515.4, 525.3, 531.1, 547, 548.1, 549.2, 608)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

515.4 ICV: ±10%

525.3 CCV: ±40%

531.1 I CV: ±20%

547 ICV ±10%

548.1 CCV <20%

549.2 CCV ±10%

A

Contamination Yes MB: Every batch of samples < Reporting limit A

Bias/

Contamination

Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS, MS, MSD:

Every batch of samples

515.4 ICV: ±10%

525.3 CCV: ±40%

531.1 I CV: ±20%

547 ICV ±10%

548.1 CCV <20%

549.2 CCV ±10%

Varies per method. Control limits are established by method criteria or by control charts.

A

Data

Completeness

Yes Every sample QA Review A

Laboratory

Contamination

Yes MB: Every batch of samples < Reporting limit A

Analytical

Precision

Yes LCS: Every batch of samples LCS: Varies per method.

Control limits are established by method criteria or by control

28 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Analytical

Accuracy/Bias

(laboratory)

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS: Every batch of samples

608: every parameter 15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method. Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD:

Every batch of samples

Varies per method. Control limits are established by method criteria or by control charts.

29 | P a g e

Matrix: Surface Water

Analyte: Volatile Organic Compounds (VOCs) (8260 low-level, 624 low-level, 524.2)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

8260: CCC compounds:

20%

SPCC compounds RF ≤

0.10

524.2 and 624: All compounds 30% and

0.05 min RF

A

Contamination Yes MB: Every batch of samples

< Reporting limit A

Bias/

Contamination

Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS, MS, MSD:

Every batch of samples

(MS/MSD

performed when sample volume permits.)

8260: CCC compounds:

20%

SPCC compounds RF ≤

0.10

524.2 and 624: All compounds 30% and 0.05 min RF

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data Completeness Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

30 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Analytical

Precision

Yes LCS: Every batch of samples

LCS: Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias

(laboratory)

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS: Every batch of samples

8260: CCC compounds:

20%

SPCC compounds RF ≤

0.10

524.2 and 624: All compounds 30% and 0.05 min RF

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD:

Every batch of samples

(MS/MSD

performed when sample volume permits.)

Varies per method.

Control limits are established by method criteria or by control

31 | P a g e

Matrix: Surface Water

Analyte: Semi-VOCs (EPA 625 low-level, 8270)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A) or both

(S&A)

Overall Precision Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

625: All parameters 20%

8270: CCC compounds:

20%

SPCC compounds RF ≤

0.05

A

Contamination Yes MB: Every batch of samples

< Reporting limit A

Bias/

Contamination

Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS, MS, MSD:

Every batch of samples

(MS/MSD

performed when sample volume permits.)

625: All parameters 20%

8270: CCC compounds:

20%

SPCC compounds RF ≤

0.05

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data Completeness Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

32 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A) or both

(S&A)

Analytical

Precision

Yes LCS: Every batch of samples

LCS: Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias

(laboratory)

Yes ICV:

Immediately following calibration.

CCV: At the beginning of every sequence and every 12 hours

LCS: Every batch of samples

625: All parameters 20%

8270: CCC compounds:

20%

SPCC compounds RF ≤

0.05

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD:

Every batch of samples

(MS/MSD

performed when sample volume permits.)

Varies per method.

Control limits are established by method criteria or by control

33 | P a g e

Matrix: Surface Water

Analyte: Dioxin (as TCDDs) (2378 TCDD, 12378-PeCDD, 123478-HxCDD, 123678-HxCDD, 123789-HxCDD, 1234678-HpCDD, OCDD, 2378-TCDF, 12378-PeCDF, 23478-

PeCDF, 123478-HxCDF)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses Error for Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Field duplicate 1/Sample delivery group

RPD < 50% S&A

Contamination Equipment blank 1/Sample delivery group

No analyte > 1/10 of sample contents

S&A

Bias/Contaminatio n

Field blank 1/Sample delivery group

No analyte > 1/10 of sample contents

S&A

Accuracy/Represen tative

NA NA NA NA

Data Completeness NA NA NA NA

Laboratory

Contamination

Method blank 1/Sample preparation batch

No analyte > 1/10 of sample contents

A

Analytical

Precision

Laboratory duplicate 1/Sample preparation batch

RPD < 30% A

Analytical

Accuracy/Bias

(laboratory)

Batch control spike or

LCS

1/Sample preparation batch

Target analytes within

20% of nominal concentration or per Table

6 of EPA Method 1613

A

Analytical

Accuracy/Bias/Pre cision (matrix interference)

None. Isotope dilution is not subject to these errors.

NA NA NA

Matrix: Sediment

Analyte: Metals (EPA 200.7, 200.8, 6010, 7471)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance

Criteria

QC Sample

Assesses Error for Sampling (S), Analytical (A), or both (S&A)

Overall Precision Yes ICV: Immediately following daily calibration.

CCV: Every 10 samples

6010 ICV and CCV:

10%

7471 ICV and CCV:

10%

34 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance

Criteria

QC Sample

Assesses Error for Sampling (S), Analytical (A), or both (S&A)

Contamination Yes ICB: Immediately after calibration

CCB: Every 10 samples

MB: Every batch of samples

< Reporting limit A

Bias/Contaminat ion

Yes Bias

LCS: Every batch of samples

Contamination:

ICB: Immediately after calibration

CCB: Every 10 samples

MB: Every batch of samples

Bias: Varies per method. Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV: Immediately following daily calibration.

CCV: Every 10 samples

LCS, MS, MSD: Every batch of samples

6010 ICV and CCV:

10%

7471 ICV and CCV:

10%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data

Completeness

Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

Analytical

Precision

Yes LCS: Every batch of samples

LCS: Varies per method. Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias

(laboratory)

Yes ICV: Immediately following daily calibration.

CCV: Every 10 samples

LCS: Every batch of samples

6010 ICV and CCV:

10%

7471 ICV and CCV:

10%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD: Every batch of samples

Varies per method.

Control limits are established by method criteria or by control charts.

35 | P a g e

Matrix: Sediment

Analyte: Pesticides & PCBs (EPA 608, 8081, 8082, 8141)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses

Error for

Sampling (S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

608: every parameter

15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

A

Contamination Yes MB: Every batch of samples

< Reporting limit A

Bias/Contamination Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

LCS, MS, MSD:

Every batch of samples

608: every parameter

15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data Completeness Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples

< Reporting limit A

Analytical Precision Yes LCS: Every batch of samples

LCS: Varies per method.

Control limits are established by method criteria or by control

36 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses

Error for

Sampling (S), Analytical

(A), or both

(S&A)

Analytical

Accuracy/Bias

(laboratory)

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

LCS: Every batch of samples

608: every parameter

15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD: Every batch of samples

Varies per method.

Control limits are established by method criteria or by control

37 | P a g e

Matrix: Sediment

Analyte: Pesticides (EPA 515.4, 525.3, 531.1, 547, 548.1, 549.2, 608)

Concentration Level: Low

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses

Error for

Sampling

(S), Analytical

(A), or both

(S&A)

Overall Precision Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

515.4 ICV: ±10%

525.3 CCV: ±40%

531.1 I ICV: ±20%

547 ICV ±10%

548.1 CCV <20%

549.2 CCV ±10%

A

Contamination Yes MB: Every batch of samples < Reporting limit A

Bias/Contamination Yes Bias

LCS: Every batch of samples

Contamination:

MB: Every batch of samples

Bias: Varies per method.

Control limits are established by method criteria or by control charts.

Contamination:

< Reporting limit

A

Accuracy/

Representative

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

LCS, MS, MSD:

Every batch of samples

515.4 ICV: ±10%

525.3 CCV: ±40%

531.1 I ICV: ±20%

547 ICV ±10%

548.1 CCV <20%

549.2 CCV ±10%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Data Completeness Yes Every sample QA review A

Laboratory

Contamination

Yes MB: Every batch of samples < Reporting limit A

Analytical Precision Yes LCS: Every batch of samples LCS: Varies per method.

Control limits are established by method criteria or by control

38 | P a g e

Data Quality

Indicator (DQI)

QC Sample or

Measurement

Performance

Activity Frequency

Measurement

Performance Criteria

QC Sample

Assesses

Error for

Sampling

(S), Analytical

(A), or both

(S&A)

Analytical

Accuracy/Bias

(laboratory)

Yes ICV: Immediately following calibration.

CCV: At the beginning of every sequence and every

12 hours

LCS: Every batch of samples

608: every parameter

15%

8081: every parameter

15%, or average of all parameters 15%

8082: 15%

Varies per method.

Control limits are established by method criteria or by control charts.

A

Analytical

Accuracy/Bias/

Precision (matrix interference)

Yes MS, MSD: Every batch of samples Varies per method.

Control limits are established by method criteria or by control

39 | P a g e

PROJECT TASKS & SCHEDULE

TABLE 5. PROJECT TASKS & PLANNED SCHEDULE FOR YEAR 1

Activity

Responsible

Party Planned Start

Planned

Completion Frequency Deliverable Deliverable Due Date

Water quality and sediment sampling

EGC|AGEISS May 2025 April 2026 Various Laboratory data sheets and chain-of-custody forms

Submitted within 30 days of sample collection

Bacteria sampling at

TRV-1

USIBWC San

Diego Field

Office

May 2025 April 2026 Weekly Laboratory data sheets and chain-of-custody forms

Results submitted as part of TRVMP

Monthly Report

Laboratory analysis EGC|AGEISS May 2025 April 2026 Various Electronic laboratory deliverable report

Submitted monthly and with final project report

Laboratory validation / data management

EGC|AGEISS May 2025 April 2026 Various Validation report Submitted monthly and with final project report

TRVMP Monthly

Report

USIBWC June 2025 May 2026 Monthly Monthly Self-

Monitoring Reports

(SMRs)

First day of second calendar month following month of sampling

TRVMP Quarterly

Monitoring Report

USIBWC August 2025 May 2026 Quarterly Quarterly Report required by Order No.

R9-2021-0001

May 1

August 1

November 1

February 1

40 | P a g e

41 | P a g e

LABORATORY DETECTION LIMITS

TABLE 6. LABORATORY DETECTION LIMITS FOR BACTERIA

Method Parameter MDL Units Laboratory

SM 9223B Fecal coliform 1.0 MPN/100mL Pace Analytical

SM 9223B E. coli 1.0 MPN/100mL Pace Analytical

TABLE 7. LABORATORY DETECTION LIMITS FOR METALS

Method Parameter RDL MDL Units Laboratory

WATER

EPA 200.7 Aluminum 0.05 0.01 mg/L Pace Analytical

EPA 200.7 Antimony 0.04 0.016 mg/L Pace Analytical

EPA 200.7 Arsenic 0.01 0.004 mg/L Pace Analytical

EPA 200.7 Barium 0.01 0.001 mg/L Pace Analytical

EPA…