Attachment_1_-_Performance_Work_Statement.pdf

Attachment 1

PERFORMANCE WORK STATEMENT -

DATA VALIDATION FOR ANACOSTIA RIVER TRIBUTARY PHASE II

For the Phase II study, low flow and storm water filtered sediments, bed sediments, large volume (LV) storm water and LV storm water filtered sediments will be collected and analyzed for PCB Congeners, PCB Aroclors, organochlorine pesticides, polycyclic aromatic hydrocarbons (PAH), alkylated PAH compounds, and metals.

The contracted agency will perform full validation (EPA Stage 3 and EPA Stage 4) on all data collected for this project, with the exception of field blanks. Field blanks will receive a cursory review as they are only used to evaluate the potential effects of field contamination. Verification of the EDDs against the laboratory report and addition of data validation qualifiers to the EDDs are included in the validation. The standard turn-around time is 30 days from receipt of all laboratory data packages and EDDs. The validation process and requirements for full validation are noted below:

DATA VALIDATION PROCESS

The contracted agency will follow a documented Quality Assurance program, implemented by a comprehensive set of standard operating procedures (SOPs). The SOPs cover all technical facets of the data validation as well as auxiliary processes e.g., data log-in and tracking, database security and archive, document control, quality control, software use and verification, algorithm verification, verification of manually input data, corrective action and training.

The primary validation chemist using the laboratory data package and EDD (if available) performs the primary validation. The primary validation chemist tabulates and evaluates quality control outliers, determines if the analyses were performed as required by the method and the project specific guidelines, performs calculation checks, verifies a subset of the data in the electronic data deliverable (EDD) against the laboratory report, adds validation qualifiers and reason codes to the EDD, and summarizes the findings in a written technical report. All sample delivery groups (SDG) will be combined into a single technical report for each analytical method. The primary review chemist will alert the Project Manager (PM) if additional information, clarification, or resubmissions are needed from the laboratory. The data, worksheets, and report will then be submitted to the secondary review chemist.

The secondary review chemist reviews the report and verifies the content against the worksheets and proposed qualifiers. The report is also reviewed for clarity and usability.

All technical assessments (especially those involving qualifiers) are reviewed and accepted or discussed with the primary review chemist. The secondary review chemist also performs random checks of calculations and qualifiers added to the EDD. Upon completion of secondary review, the Project Coordinator creates a sample index and qualified data summary table (QDST) from the EDD and compiles the technical report sections, sample index, QDST, qualifier and reason code definitions, and method specific criteria tables into a final report for PM review.

The Project Manager reviews the reports for clarity, consistency, and accuracy. Random checks of qualifiers and sample identifications are performed. The Project Manager also reviews the reports to see if the project data quality objectives (as specified in the QAPP) were met.

TECHNICAL REQUIREMENTS FOR FULL VALIDATION

The contracted agency will review 100% of the data using manual and electronic data validation techniques. Quality control elements for full validation (as appropriate to method) include:

• Laboratory Data Deliverable Completeness

• Presence and completeness of chain-of-custody documentation

• Sample Preservation and Holding Times

• Instrument Performance (tunes, endrin breakdown, retention time windows, etc.)

• Initial and Continuing Calibrations

• Blank Contamination (Laboratory and Field)

• Surrogate or Labeled Compound Recovery

• Internal Standard Recovery

• Blank Spike Recovery

• Certified Reference Material Recovery

• Matrix Spike/Matrix Spike Duplicate (MS/MSD) Recovery

• MS/MSD Relative Percent Difference (RPD)

• Laboratory Duplicate RPD

• Field Duplicate RPD

• Interference Check Samples (ICP/ICP-MS analysis)

• Serial Dilutions (ICP/ICP-MS analysis)

• Compound Identification

• Compound Quantitation

• Recalculations from Raw Data

• Transcription Check (Laboratory Report to EDD) The goal of EDD verification and recalculation of results is to identify any systematic laboratory reporting process. A subset of analytes for each method (1-3 depending on the number of target analytes) will be recalculated from the raw data for samples, calibrations, and laboratory QC. A random 10% of results in the EDD will also be verified against the laboratory report. If any errors are noted, additional checks will be performed.

Validation will be done using the following reference documents:

• EPA Methods and Laboratory SOPs

• National Functional Guidelines for Inorganic Superfund Methods Data Review (Jan

2017)

• National Functional Guidelines for Organic Superfund Methods Data Review (Jan

2017)

• National Functional Guidelines for High Resolutions Superfund Methods Data

Review (April 2016)

• EPA Guidance for Labelling of Externally Validated Laboratory Analytical Data for Superfund Use (Jan 2009)

Data Time Delivery

Data will be delivered in two batches for samples collected in 2021-2022 and samples that will be collected in 2023. Records and associated files for samples collected in 2021- 2022 will be compiled and provided in September 2023. Records and associated files for samples collected in 2023 will be compiled and provided in September 2024. Any deviations to the delivery date due to laboratory delays will be communicated in writing.

2021-2022 samples consist of:

Analyte Method Number of Samples Polychlorinated Biphenyls HRGC/HRMS by EPA

Method 1668C 23

Alkylated Polyaromatic Hydrocarbons

LRMS by SGS AXYS Method MLA-013 or MLA-

Chlorinated Pesticides HRGC/HRMS by EPA Method 1699 23

Metals ICP/MS 23

2023 samples will consist of:

Analyte Method Number of Samples Polychlorinated Biphenyls HRGC/HRMS by EPA

Method 1668C 13

Alkylated Polyaromatic Hydrocarbons

LRMS by SGS AXYS Method MLA-013 or MLA-

Chlorinated Pesticides HRGC/HRMS by EPA Method 1699 13

Metals ICP/MS 10

Chemical Analytes:

Polychlorinated Biphenyls

Analyte CAS or Laboratory Identified

Analyte CAS or Laboratory Identified

PCB-1 2051-60-7 PCB-55 74338-24-2

PCB-2 2051-61-8 PCB-56 41464-43-1

PCB-3 2051-62-9 PCB-57 70424-67-8

PCB-4 TTNUS524 PCB-58 41464-49-7

PCB-5 16605-91-7 PCB-59/62/75 TTNUS816

PCB-6 25569-80-6 PCB-60 33025-41-1

PCB-7 33284-50-3 PCB-61/70/74/76 TTNUS817

PCB-8 34883-43-7 PCB-63 74472-34-7

PCB-9 34883-39-1 PCB-64 52663-58-8

PCB-10 33146-45-1 PCB-66 32598-10-0

PCB-11 2050-67-1 PCB-67 73575-53-8

PCB-12/13 TTNUS800 PCB-68 73575-52-7

PCB-14 34883-41-5 PCB-72 41464-42-0

PCB-15 2050-68-2 PCB-77 32598-13-3

PCB-16 38444-78-9 PCB-78 70362-49-1

PCB-17 37680-66-3 PCB-79 41464-48-6

PCB-18/30 TTNUS616 PCB-80 33284-52-5

PCB-19 38444-73-4 PCB-81 70362-50-4

PCB-20/28 TTNUS519 PCB-82 52663-62-4

PCB-21/33 TTNUS810 PCB-83/99 TTNUS863

PCB-22 38444-85-8 PCB-84 52663-60-2

PCB-23 55720-44-0 PCB-85/116/117 TTNUS799

PCB-24 55702-45-9 PCB-86/87/97/109/119/125 TTNUS941

PCB-25 55712-37-3 PCB-88/91 TTNUS819

PCB-26/29 TTNUS811 PCB-89 73575-57-2

PCB-27 38444-76-7 PCB-90/101/113 TTNUS619

PCB-31 16606-02-3 PCB-92 52663-61-3

PCB-32 38444-77-8 PCB-93/100 TTNUS864

PCB-34 TTNUS277 PCB-94 73575-55-0

PCB-35 37680-69-6 PCB-194 35694-08-7

PCB-36 38444-87-0 PCB-195 52663-78-2

PCB-37 38444-90-5 PCB-196 42740-50-1

PCB-38 53555-66-1 PCB-197 TTNUS861

PCB-39 38444-88-1 PCB-198/201 TTNUSA53

PCB-41/40/71 TTNUS813 PCB-199 52663-75-9

PCB-42 36559-22-5 PCB-200 52663-73-7

PCB-43/73 TTNUSA51 PCB-202 2136-99-4

PCB-44/47/65 TTNUS618 PCB-203 52663-76-0

PCB-45/51 TTNUS814 PCB-204 74472-52-9

PCB-46 41464-47-5 PCB-205 74472-53-0

PCB-48 70362-47-9 PCB-206 40186-72-9

PCB-49/69 TTNUS818 PCB-207 52663-79-3

PCB-50/53 TTNUS815 PCB-208 52663-77-1

PCB-52 35693-99-3 PCB-209 2051-24-3

PCB-54 15968-05-5

Poly Aromatic Hydrocarbons

Acenaphthene 83-32-9

C4- Chrysenes/Benzo(a)anthracenes TTNUS920

Acenaphthylene 208-96-8 Dibenzo(a,h)anthracene 53-70-3 Anthracene 120-12-7 Fluoranthene 206-44-0

Benzo(a)anthracene 56-55-3 C1- Fluorenes/Pyrenes TTNUS147 Benzo(b)pyrene 50-32-8 Fluorene 86-73-7

Benzo(b)fluoranthene 205-99-2 C1- Fluorenes TTNUS148 Benzo(e)pyrene 192-97-2 C2- Fluorenes TTNUS156

Benzo(g,h,i)perylene 191-24-2 C3-Fluorenes TTNUS161 Acenaphthene 83-32-9 Indeno(1,2,30-CD)pyrene 193-39-5

Acenaphthylene 208-96-8 Naphthalene 91-20-3 Anthracene 120-12-7 1- Methylnaphthalene 90-12-0

Benzo(a)anthracene 56-55-3 2-Methylnaphthalene 91-57-6 Benzo(b)pyrene 50-32-8 C2-Naphthalenes TTNUS157

Benzo(b)fluoranthene 205-99-2 C3-Naphthalenes TTNUS162 Benzo(e)pyrene 192-97-2 C4-Naphthalenes TTNUS165

Benzo(g,h,i)perylene 191-24-2 Perylene 198-55-0 Benzo(k)fluoranthene 207-08-9 Phenanthrene 85-01-8

Chrysene 218-01-9 C1-Phenanthrenes/Anthracenes TTNUS150 C1-Chrysenes/Benzo(a)anthracenes TTNUS917 C2- Phenanthrenes/Anthracenes TTNUS158 C2-Chrysenes/Benzo(a)anthracenes TTNUS918 C3- Phenanthrenes/Anthracenes TTNUS163

C3-Chrysenes/Benzo(a)anthracenes TTNUS919

Chlorinated Pesticides

Identified

4,4'-DDD 72-54-8

4,4'-DDE 72-55-9

4,4'-DDT 50-29-3

Aldrin 309-00-2 alpha-BHC 319-84-6 beta-BHC 319-85-7 delta-BHC 319-86-8 Chlordane 57-74-9

Dieldrin 60-57-1 Endosulfan I 959-98-8 Endosulfan II 33213-65-9

Endosulfan sulfate 1031-07-8 Endrin 72-20-8

Endrin aldehyde 7421-93-4 Endrin ketone 53494-70-5 gamma-BHC (Lindane) 58-89-9 Heptachlor 76-44-8

Heptachlor epoxide 1024-57-3 Methoxychlor 72-43-5 Toxaphene 8001-35-2

Metals

Identified

Mercury 7439-97-6 Aluminum 7429-90-5 Antimony 7440-36-0 Arsenic 7440-38-2 Barium 7440-39-3

Beryllium 7440-41-7 Cadmium 7440-43-9 Calcium 7440-70-2

Chromium 7440-47-3 Cobalt 7440-48-4 Copper 7440-50-8

Iron 7439-89-6 Lead 7439-92-1

Magnesium 7439-95-4 Manganese 7439-96-5

Nickel 7440-02-0 Potassium 744-09-7 Selenium 7782-49-2

Silver 7440-22-4 Sodium 7440-23-5 Thallium 7440-28-0

Vanadium 7440-62-2 Zinc 7440-66-6