Design Team

Jamie L. Miller, P.E.

Director of Engineering

With 30 years of experience in environmental and civil engineering, Jamie Miller is the driving force of our engineering department. Specializing in all things water and wastewater including: permitting, master planning, feasibility studies, process design, cold-weather design, treatment, storage, disposal and re-use. She has been the principal designer for numerous successful projects in Colorado, Texas, Montana, Georgia, Washington, Oregon, Illinois, Arizona, and New Mexico. Jamie is mother to three amazing children and loves to travel.

Angela Helliwell

Project Manager

Angela brings 20 years of experience in wastewater treatment, experience that includes manufacturing, sales, construction, operations, and engineering. She has worked for IWS since 2010, supporting engineering in permitting and design and operating as a project manager.

Bill Ellis

Senior Designer

Bill has over 30 years of experience as a CAD designer in the civil engineering field. His expertise includes water and sanitary sewer systems, wastewater treatment facilities, solid waste disposal (landfills), site development including grading and earthwork, roadway design and structural detailing. He has worked in California, Washington, Oregon, Colorado and New Mexico.

Matthew Katz

Project Engineer

Matthew has over three years’ worth of experience in the design of water and wastewater treatment facilities. Matt has worked on projects across the United States, including California, Colorado, Maryland, Montana, New Mexico, Pennsylvania, Texas, and Virginia. He has served both municipal and private sector clients; working on projects involving the design of pipelines, process piping, lift stations, vaults, and storm-water BMPs. In his free time, Matt enjoys spending time outdoors.

Mike McMinimee

Project Engineer

Mr. McMinimee graduated from the University of Wyoming in May of 2017 with his B.S degree in Chemical Engineering. In March of 2017, Mike passed the Fundamentals of Engineering exam to become an E.I.T. As a member of the Engineering Department, Mike serves an integral role in the permitting and design processes and is currently working towards a Professional Engineering License. Mike is an avid outdoors-man, and spends most weekends exploring the Colorado back-country.

Chris Palmer, CEG, HG, PG, RG


Mr. Palmer has diversified experience in hydrogeologic and engineering geologic studies in California and other States. He has performed and supervised numerous of investigations for soil and groundwater sampling, water quality, groundwater monitoring well design and installation, aquifer data analysis, contaminant assessment and report preparation. Projects include contaminant assessments at military and industrial sites and landfills; percolation testing and related hydrogeologic study for on-site wastewater disposal; phase one environmental site assessments; engineering geologic study for land development.