|
PROPOSAL FOR
<br />On -Call Engineering Design Services
<br />William Johnson
<br />3D CADD
<br />PFAS Treatment Systems
<br />Education
<br />Autodesk Civil 3D, Westech
<br />College, 2017
<br />William has more than 20 years of CADD experience covering Tri County Technology,
<br />electrical, telecommunications, roadway, highway, traffic, freeway, and Bartlesville, OK, 1999
<br />water/recycled water/wastewater design and drafting using AutoCAD,
<br />Revit, and Civil 3D. Mr. Johnson works with various staff members to Years of Experience
<br />meet the needs of our designers as well as our clients. He has 20
<br />experience coordinating multi -office, multi -discipline projects that
<br />utilize the latest Autodesk application software and managing project documents so the client receives
<br />a complete set of required documents.
<br />EXPERIENCE
<br />PFAS On -Call Contract, Orange County Water District, CA. 2021. 31D CADD Lead for IX/GAC
<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 />in Serrano Water District Well #5 and #9 (In Operation): This project consists of a 3,000 GPM
<br />IX 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, PFOA and VOCs will be removed using B 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 (In 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. 3D CADD
<br />Lead 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 MGD 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 />Albert Robles Center for Water Recycling and Environmental Learning (Formerly known as
<br />GRIP), Water Replenishment District of Southern California, Pico Rivera, CA. 2019. 3❑ CADD
<br />Lead for a new 13,000 acre-feet per year of fully advanced treated recycled water. Treatment process
<br />includes influent facilities, MF/UF system, R❑ system, UV Advanced Oxidation system,
<br />post-treatment/stabilization/disinfection, product water wet well, and brinelwaste disposa[ connection.
<br />Pure Water Oceanside, Advanced Water Purification Facility, City of Oceanside, CA. CADD
<br />Coordinator. 2018 - Ongoing. To counteract the growing reliance on imported water supply while
<br />increasing local water supplies, and to meet the City's long-term goal of 50 percent water
<br />independence by 2030, the City of Oceanside has selected a team led by Tetra Tech to design a new
<br />Advanced Water Purification Facility.
<br />TETRA TECH
<br />
|