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PROPOSAL FOR
<br />On -Call Engineering Design Services
<br />Tom Epperson, PE
<br />Client Manager
<br />PFAS Treatment Systems
<br />Education
<br />BS, Environmental
<br />Engineering, University of
<br />C
<br />Tom has more than 41 years of professional experience in water, alifori na, Irvine, 1978
<br />wastewater, and reclaimed water engineering. He has been Registrations
<br />responsible for the preparation of water, wastewater, and reclaimed Professional Civil Engineer,
<br />water master plans; project design reports for various water, California, No. 36399, 1983
<br />wastewater, and reclaimed water facilities; and the planning and
<br />design of water, wastewater, and reclaimed water pipelines, along Years of Experience
<br />with pump stations and reservoirs. Tom has completed the design, 41
<br />bidding, and construction management of over 300 miles of
<br />water/reclaimed water sewer mains, 40 water/reclaimed water pump stations, 15 well head facilities,
<br />12 sewer lift stations and 25 water/reclaimed water storage reservoirs throughout Southern California.
<br />EXPERIENCE
<br />PFAS ❑n-Call Contract, Orange County Water District, CA. 2 02 1. QAIQC Manager for IXIGAC
<br />treatment for PFOS and PFOA design for 18 affected wells in the main Orange County Basin. Projects
<br />included design, estimating of capital and operating costs, coordinating with vessel suppliers, and
<br />construction management for the following projects:
<br />■ Serrano Water District Well #5 and #9 (In Operation): This project consists of a 3,000 GPM
<br />1X System with a bag filter pre-treatment, 3,000 GPM Booster Pump Station and new chemical feed
<br />system for disinfection.
<br />■ Kimberley Well 1A (In Operation): Located on a very small site with a single well this facility is
<br />designed to produce 3,000 GPM using an IX System with a bag filter pre-treatment and new
<br />chemical feed system for disinfection.
<br />■ Fullerton Main Plant (Completed Design): The Fullerton Main Plant will treat six onsite wells with a
<br />total capacity of 10,100 GPM. PFOS, PFDA and VOCs will be removed using 6 to 12 ft diameter,
<br />40,000 lb. GAC vessels that will discharge into an existing forebay then pumped into the distribution
<br />system. The remaining wells will be treated with an IX system consisting of 8 vessels and bag filters
<br />for pre-treatment.
<br />■ Yorba Linda Water District Headquarters Plant tin Operation): This system will treat water from
<br />10 wells with a total capacity of 17,400 GPM. An IX System consisting of 11 pairs of Lead/Lag
<br />Vessels (22 vessels total), bag filter pre-treatment, Booster Pump Station, and new Onsite
<br />Generation System for chlorine disinfection. In order to get the system on the existing site an
<br />extensive analysis of the site improvements was completed.
<br />PFAS Study for Wells ET-1, ET-2 and 78, Irvine Ranch Water District, Irvine, CA. 2021. QAIQC
<br />Manager for a study to determine the options to add PFAS treatment to an operating VOC air stripper
<br />project. Well ET-1 operates at 2.0 M G D through one tray air stripper that discharges into a small wet
<br />well with a single booster pump station. The existing plant is located on a small lot with limited space.
<br />Project included analysis of water quality, options for IX or GAC treatment and analysis of adding wells
<br />ET-2 and 78 to the project if they become affected by PFAS. Capital and O&M costs were also
<br />prepared.
<br />Equipping Well No. 15 and Treatment Plant, City of Paramount, CA. 2010. Project Manager.
<br />Design and construction support for a new bulk sodium hypochlorite and ammonia chemical delivery
<br />system at the City's new Well No. 15. Design included the equipment for the well including the pump
<br />and motor, the discharge piping, and a manganese and future arsenic treatment system. Included
<br />within the facility are an arsenic manganese filtration system, backwash tank, backwash recirculation
<br />pumps, sludge mixer pumps, sodium hypochlorite and ammonia treatment systems, and an emergency
<br />generator. The facility included a well building removable sound enclosure, a pre-engineered,
<br />prefabricated precast concrete electrical building, and a prefabricated fiberglass insulated building for
<br />the backwash pump enclosure.
<br />TETRA TECH
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