FROM: Robert Thompson, General Manager
Originator: Lan C. Wiborg, Director of Environmental Services
SUBJECT:
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LIQUID CHROMATOGRAPH-TRIPLE QUADRUPOLE MASS SPECTROMETER (LC-MS/MS)
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GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION:
Approve a Sole Source Purchase Order to Agilent Technologies for the purchase of a replacement Liquid Chromatograph-Triple Quadrupole Mass Spectrometer (LC-MS/MS) System for a total amount not to exceed $453,000.
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BACKGROUND
The LC-MS/MS System is the industry-standard technology for the analysis for per- and poly-fluoroalkyl substances (PFAS) and Contaminants of Emerging Concern (CECs) in wastewater samples as required by Orange County Sanitation District's (OC San) National Pollutant Discharge Elimination System (NPDES) Permit and for various special projects. The system will replace an existing system which has reached end-of-life status.
Inventory of Triple-Quadrupole Instruments:
Instrument
Purchase Date
Estimated Replacement Date
Used to Analyze
Liquid Chromatograph / Mass Spectrometer
April 2016
June 2026
PFAS and CECs in liquid and solid samples
Gas Chromatograph / Mass Spectrometer
September 2020
September 2030
Pesticides in ocean sediment and fish tissue
Gas Chromatograph / Mass Spectrometer
June 2023
June 2033
Persistent organic pollutants in sediment
Gas Chromatograph / Mass Spectrometer
April 2025
April 2035
Persistent organic pollutants in NPDES compliance samples
Inductively Coupled Plasma / Mass Spectrometer
June 2025
June 2035
Metals in wastewater, ocean sediment, and fish tissue
RELEVANT STANDARDS
* Comply with environmental permit requirements
* Maintain a proactive asset management program
* Ensure the public's money is wisely spent
* Maintain a culture of improving efficiency to reduce the cost to provide the current service level or standard
PROBLEM
This request is to sustain and enhance the laboratory's analytical capacity and capability for PFAS and CECs in was...
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