SPECIAL NOTICE
B -- B--SGS-AXYS ANALYTICAL / OPTION YEAR 1
- Notice Date
- 7/21/2022 4:32:21 PM
- Notice Type
- Special Notice
- NAICS
- 541380
— Testing Laboratories
- Contracting Office
- OFFICE OF ACQUISITON GRANTS SACRAMENTO CA 95819 USA
- ZIP Code
- 95819
- Solicitation Number
- 140G0322Q0195
- Response Due
- 7/25/2022 9:00:00 AM
- Point of Contact
- Deng, Yangzhi, Phone: 916-278-9326
- E-Mail Address
-
yangzhideng@usgs.gov
(yangzhideng@usgs.gov)
- Description
- ANALYSES OF PARENT AND ALKYLATED PHAs Notice of Intent This is a notice of intent to solicit from a single source. The U.S. Geological Survey (USGS), intends to award an option purchase order to SGS AXYS Analytical Services Ltd. for analysis of tissue samples and solid phase samples. Award will be made in accordance with Federal Acquisition Regulation (FAR) 13.106-1(b) and the procedures at FAR Part 12 entitled, Acquisition of Commercial Items and FAR Part 13 entitled, Simplified Acquisition Procedures. SGS had performed analyses of parent and alkylated PHAs for the USGS in FY 2021. Data continuity and compatibility are critical to this study. The purpose of this notice is to satisfy the requirements of FAR Subpart 5.101(a)(1) and FAR 5.2. This notice of intent is not a request for competitive quotes. However, all responsible parties may submit a quotation by the closing date of this announcement which shall be considered by the agency. No solicitation will be issued. A determination not to compete this action based upon responses received is in the sole discretion of the Government. The NAICS code for this action is 541380, Testing Laboratory. Responses or inquiries shall only be accepted through electronic mail addressed to yangzhideng@usgs.gov and must be uploaded and received in their entirety no later than July 25, 2022 at 1200 ET. Responses submitted by hardcopy or any web portal shall not be accepted or considered. STATEMENT OF WORK 1. Background The study investigates wildfire-associated contaminants in wildfire ash, in burned soil and stream sediment from the Santa Cruz Mountains, and downstream in estuarine/intertidal organisms in Monterey Bay, California, USA. Lab analyses will identify and quantify concentrations of parent and alkylated polycyclic aromatic hydrocarbons (PAHs) in ash, soil, ash/soil mixtures, sediment, and organism tissue. A high degree of discrimination of target analytes and low sample detection/reporting limits are required for successful fulfillment of the scope of work because of the high organic and mud contents of the samples, potential dilution of wildfire constituents during storm runoff and in aqueous environments, and the need to quantify background PAH levels and characteristic ratios. 2. Scope of Work A. Sample matrices and numbers Parent and alkylated PAHs will be quantified in up to 43 samples of ash, soil, ash/soil mixtures, sediment, and organism tissue. The expected breakdown (subject to change) is: � 31 solid phase analyses (ash/soil/sediment) � 12 tissue analyses (including Homogenization, Moisture content, and Lipid content) All samples will be stored and shipped frozen (-20 degree C) to the analytical lab. B. Timeline - Sample collection has already begun. Sample will be submitted in batches over the Period of Performance. - Results will be delivered in an electronic format no later than 60 days (or the next business day) after receipt of samples by the analytical lab. - The Period of Performance of the Option Year is from 8/23/22 to 8/22/23 unless modified by mutual consent of the USGS and the analytical lab. C. Methods for parent and alkylated PAH identification and quantification Unknown and quality control samples are first spiked with deuterated surrogate standards then Soxhlent-extracted, cleaned up, and quantified by isotope dilution low resolution gas chromatography mass spectrometry (GC/MS) in multiple ion detection mode (MID) acquiring data for a target analyte and its paired surrogate to minimize false positive identifications. The list of the required parent and alkylated PAHs is provided in Table 1. Extraction and clean up Sediment and tissues will be spiked with deuterated surrogate standards and then undergo Soxhlet extraction with an appropriate solvent such as toluene, dichloromethane, or another with equal or better performance. Extracts will be cleaned up with routine, matrix-appropriate procedures such as column chromatography (e.g., silica, gel permeation, alumina, biobeads) and treatment with activated copper. Calibration The GC/MS will be initially calibrated with at least five calibrations standards with a linear range. Within-run calibrations will be done at least every 12 hours using a mid-range calibration verification standard. Quantification Target PAH analyte concentrations will be quantified using the method of isotope dilution or isotope dilution/recovery correction quantification as warranted. Response factors between target analytes and paired surrogate standards will be determined with ongoing precision and recovery (OPR) and calibration verification standards. If surrogate standards are not commercially available for certain PAHs, quantification will be by an internal standard. Quality Assurance and Quality Control (QA/QC) The analytical laboratory must be accredited by the American Association of Laboratory Accreditation (Standard ISO/IEC 17025:2017) for the quantification of parent and alkylated PAHs by isotope dilution GC/MS in solids and tissues. A procedural blank and a spiked matrix sample (OPR) for Percent Recovery will be processed with every batch of 20 samples. One duplicate will be run on an unknown sample with each batch when sufficient mass is available. Analytical performance will meet or exceed the criteria for Sample (Estimated) Detection Limits, Procedural Blanks and Matrix Spike Recovery shown in Table 1. Reporting, Deliverables, and Timeliness Parent and alkylated PAH concentrations in Solid samples will be reported on a dry weight basis (e.g. ng/g) and in Tissue samples on a wet weight basis with corresponding Moisture and Lipid content values to allow comparisons to other studies. Results will be delivered in an electronic spreadsheet-readable format and will include parent and alkylated PAH concentrations (if greater than the sample detection limit), reporting limits, and surrogate recoveries in samples, blanks, duplicates, and matrix spikes; moisture content, and, if applicable, lipid content. Results will be delivered no later than 60 days (or the next business day) after receipt of samples at the analytical lab. 3. Evaluation Criteria Bids/quotes will be evaluated primarily for technical merit based on compliance with the list of required analytes and Quality Assurance/Quality Control criteria in Table 1. The successful bid will meet or exceed required criteria. Analytical labs will provide documentation of compliance with required criteria if so requested. Total price will be a secondary consideration providing that the total does not exceed the funds available. 4. Modifications The contract may be modified upon mutual consent of the USGS and the analytical lab to add more funds, add more samples, modify the Statement of Work, modify Prices, and extend the Period of Performance. 5. Period of Performance The Period of Performance is from 8/23/2022 to 8/22/2023 or 2 years from the Contract Award Date (whichever is later), with a 1-year renewal option upon mutual consent of the USGS and the analytical lab.
- Web Link
-
SAM.gov Permalink
(https://sam.gov/opp/0a9b9dc3d19b4311aa7ea7aa091f147b/view)
- Record
- SN06396746-F 20220723/220721230115 (samdaily.us)
- Source
-
SAM.gov Link to This Notice
(may not be valid after Archive Date)
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