Chris K. Ferens, E.I.T.
Staff Engineer


CFerensExpertise

Mr. Ferens is a Project Engineer and joined Hydro Geo Chem, Inc. in 2020. He has approximately 11 years of professional experience. His duties at HGC have included soil and groundwater remedial systems design, installation and oversight; remediation system operation, maintenance and monitoring; environmental data collection and interpretation; reporting; and project management.



 

Education

-M.S. Chemical Engineering, University of Arizona, 2019
-B.S. Chemical Engineering, University of Arizona, 2013

Certifications

Engineer in Training, 2015
OSHA 40-Hour HAZWOPER, 2020
MSHA New Miner Training, 2012
Safety in the Chemical Process Industries (SACHE) Certification, 2012


Project Experience

• Pinyon Plain Mine Water System, Arizona: Assisted in a public water system (PWS) design for mine personnel and submitting the Authority to Construct permit report. Oversight of PWS construction and pressure testing of the new water main. Performed disinfection and sampling of new main. Preparation of an operations and maintenance (O&M) manual and as-built drawings.

• Pinal County Brackish Groundwater Availability Study, Arizona: Co-authored report on brackish groundwater availability within the Pinal Active Management Area, including researching and reporting on desalination technologies and finding and analyzing data for brackish and freshwater wells.

• TOUA Well Drilling Project, Arizona: Monitored a step drawdown pumping test at a new well; interpreted data and aquifer parameters using AQTESOLV for multiple pumping tests. Prepared pumping test reports.

• 1st & Hopi PI Site, Holbrook, Arizona: Performed soil vapor and groundwater sampling, analysis of soil vapor extraction (SVE) pilot test data and site reconnaissance. Installation of an SVE remediation system, including plumbing, electrical wiring, condensation knockout, control panel and remote monitoring/operation systems. Collection and interpretation of operations, maintenance and monitoring data.

• Former Winslow Welding Site, Winslow, Arizona: Installation of an SVE remediation system, including plumbing, electrical, condensation knockout, control panel and remote monitoring operation, for an ADEQ corrective action petroleum hydrocarbon LUST site. Collection and interpretation of operations, maintenance and monitoring data. Measurement of water levels in monitoring wells. Performed soil vapor sampling. Mass extraction calculations, pressure transducer data interpretation and preparation of an interim report. System modifications for optimal mass removal.

• 7th St & Arizona Ave WQARF Site, Tucson, Arizona: Installation of an SVE remediation system. Collection and interpretation of operations, maintenance and monitoring data. Performed system modifications to allow SVE wells to operate as either SVE wells or passive vent wells. Site-wide groundwater and soil vapor sampling. Preparation of technical memorandums and summary reports. Project management.

• Hwy 260 & Main WQARF Site, Cottonwood, Arizona: Oversight of wellhead carbon treatment system installations and reporting. Wellhead carbon treatment system operations, maintenance and monitoring including sediment filter and carbon changeouts, and groundwater sampling. Preparation of an operation, maintenance and monitoring manual including flow diagrams. Retrofitting of wellhead treatment systems to include lead/lag switching manifolds and pressure gauges. Sampled groundwater from approximately 100 privately owned wells.

• Dolly Madison CA LUST Site, Tucson, Arizona: SVE/air injection with thermal catalytic oxidizer treatment O&M. Water level monitoring, SVE well sampling and low-flow groundwater sampling. Involved with shallow soil vapor probe installations and performed soil vapor sampling.

• Miller Valley and Hillside WQARF Site, Prescott, Arizona: Operation and monitoring of a groundwater pump-and-treat pilot test including system shutdown. Calculations of water level drawdowns from pressure transducer and depth to water level data. Interpretations of drawdown data using AQTESOLV. Preparation of a pilot test summary report.

• City of Tucson Landfill Groundwater Sampling, Tucson, Arizona: Sampled groundwater from monitoring wells at multiple landfills, including sampling for PFAS. Project management.

• Tucson Electric Power Substation Surveying, Tucson Arizona: Substation Safety Awareness Training. Involved with land surveying of a Tucson Electric Power substation.

• West Central Phoenix- North Canal Plume WQARF Site, Phoenix Arizona: Involved in SVE pilot test preparation and analyses of pressure transducer data.

• Harrison Rd & Millmar Rd Dross WQARF Site, Tucson, Arizona: Assessed erosional damages and performed soil cap repairs. Preparation of technical memorandums. Project management.

• Rio Salado Parkway Blower Ventilation System, Tempe, Arizona: Blower ventilation system operation and maintenance.

• Former Winslow Shell, Winslow, Arizona: Oversight of monitoring well and soil vapor probe abandonments

• Winslow Whiting Bros. No. 23, Winslow, Arizona: Performed low-flow groundwater sampling and soil vapor sampling.

• 1st & Hopi GW Characterization, Holbrook, Arizona: Collected groundwater samples from passive diffusion bags and performed soil vapor sampling.

• Wabash & Reno Discrete-Depth GW Sampling, Tucson, Arizona: Assisted in elaborate setup to pump a production well at 500 gpm into frac tanks while discharging to sewer at a controlled rate. Assisted in sample collection of ground water from discrete depths in the well.

• Prescott LUST Creek Sampling, Prescott, Arizona: Deployed passive diffusion bags in creek beds and collected water samples to determine possible additional contamination sources at a LUST site.

• Stone and Drachman PI Site, Tucson, Arizona: Performed soil vapor sampling from temporary vapor probes; oversight of monitoring well and vapor probe installations.

• Cathedral and Bellrock PI Site, Sedona, Arizona: Project management and reporting for a preliminary investigation site concerning contamination from a former dry-cleaning operation.

• Highway 69 and Old Sycamore PI Site, Mayer, Arizona: Data analysis, geochemical modeling with PHREEQC and reporting.

• Miracle Mile WQARF Site, Tucson, Arizona: Conducted SVE pilot tests; data analysis of SVE pilot test data and reporting.

• South Yuma County Landfill, Yuma, Arizona: Performed and reported annual and semiannual groundwater sampling events since 2023. Assisted project management of Tier II NMOC sampling and liquid trench monitoring. Involved in air quality permit renewal and emissions inventory reporting. Conducted Storm Water Pollution Prevention Plan refresher training.

• Hexcel UST Closure, Casa Grande, Arizona: Conducted subsurface soil sampling. Oversight of UST removal construction activities. Reporting.

• Avra & Rudasill PI Site, Picture Rocks, Arizona: Collected groundwater and subsurface soil samples to investigate a source of PCBs.

Previous Experience

• Engineering Data Consultant - Allen Analytics, LLC., Tucson, Arizona: Consultant engineer and data analyst for commercial research dealing with pollution control technology for some of the largest coal-fired power plants in operation in the United States; evaluated efficacy of pollution control technologies for flue gas and wastewater by analyzing time-series operational process data and analytical chemistry data; introduced company and clients to various aspects of water chemistry including aqueous speciation; developed and expanded computer programs that increased the company’s abilities and capacity such as programs that could read chemical formulas (e.g. CaSO4), convert concentration units, and automate aquatic speciation from analytical data using MATLAB and PHREEQC; assessed and quantified wastewater flows across entire plants for various projects that ranged 1-6 years of minute-scale power plant and meteorology data; co-authored papers for MEGA 2016, MEGA 2018, and IWC 2018.

• Project Engineer/Technician - SunDanzer Refrigeration, Inc., Tucson, Arizona: Temporary technical lead on multiple projects for a small company that specializes in energy-efficient DC-powered refrigeration for off-grid applications; helped lead the process of design, testing, and production of custom units shipped internationally for field-testing for PepsiCo; provided technical and engineering support to project managers and clients; set up and operated data acquisition systems; assisted with various production and project needs.

• Metallurgist Intern - Freeport-McMoRan Copper & Gold, Inc., Green Valley, Arizona: Full-time summer internship in the Hydromet department of the Sierrita Mine; worked on multiple projects to improve aspects of the hydrometallurgical processes; put together and presented technical data reports; wrote VBA code to further automate spreadsheet applications.

• Laboratory Technician - Mountain States R&D Int., Inc., Vail, Arizona: Full-time metallurgical lab tech; maintained column-leaching projects; adjusted acid concentration of raffinate, adjusted flow rates, collected and assayed PLS samples, and entered data into spreadsheets; other various duties such as sample preparations.

PUBLICATIONS:

IWC. 2018. Plant-Scale Mass Balance to Determine the Effect of Flue Gas Additives on Trace Metals in FGD Wastewater and Solids

MEGA. 2018. Operational Water Balances for a Coal-Fired Power Plant with FGDs and Wastewater Recycling

MEGA. 2016. Contribution of Startup and Shutdown Events to 30-Day Mercury Emission Averages

MEGA. 2016. Effluent Trace Metals Survey and Related Plant Operations at 18 Flagship FGD Units

MEMBERSHIPS:

American Chemical Society Member
Student Member of American Institute of Chemical Engineers (AICHE)

 

 

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