Mark Beebe, P.E., an engineer at Richard P. Arber Associates Consulting Engineers in Denver, Colorado, is an expert in innovative drinking water projects.

Beebe is project engineer for one of the first cities in the U.S. to start pilot testing and system design to bring their water system into compliance with new EPA arsenic regulations. He also completed the award winning Katherine Land Water Treatment Plant – one of the first in the U.S. to use microfiltration and nanofiltration membranes. Beebe also designed the largest project in Colorado to use reverse osmosis membranes to improve drinking water quality and ease wastewater treatment requirements. 

Suzannah Folsom, an engineer with Malcom Pirnie in Tampa, Florida, is an expert in water, wastewater, and storm water facility design. 

Folsom has worked on full-scale ground water remediation efforts and watershed modeling. She has extensive experience with the permitting of storm water runoff and wetland issues. Folsom has been instrumental in completing the Hillsborough County Valrico construction waste treatment project, and completing the design and assisting with the construction of Tampa Bay Water Chloramine Implementation Project. 

Amy Sloma, an engineer with the URS Corporation in Denver, Colorado, is an expert in environmental investigation and remediation.

Sloma completed environmental investigation and remediation studies for F.E.Warren Air Force Base in Cheyenne, WY, asbestos surveys at Osan Air Base, South Korea, and compliance site inventories at several Air Force installations throughout Alaska. While working on the Colorado Source Water Assessment and Protection Program, Sloma delineated protection areas for over 400 drinking water systems including wells, springs, infiltration galleries, surface water intakes and diversions. She also completed a Groundwater Availability Analysis for the City of Aurora that required the collection and compilation of data needed to construct a three-dimensional geometric model of the Denver Basin aquifer system for groundwater volume quantification. 

Lyle DeVries, an engineer with Felsburg Hoit and Ullevig in Greenwood Village, Colorado, conducts transportation studies. This includes performing field work, technical analyses, plans preparation, report writing, overall project management, client/agency coordination, and public presentations. 

One of DeVries’ specialties is in the area of traffic operations simulation. He has successfully used simulation software packages to demonstrate nuances of complex traffic issues and to show benefits of proposed solutions. DeVries recently developed an innovative highway lane closure strategy for the Colorado Department of Transportation. This strategic document uses an analytic approach to establish uniform guidance for scheduling construction/maintenance-related closures of travel lanes on the State Highway system. He also is active in the establishment of transportation policy as a member of the Institute of Transportation Engineers. In this capacity, he serves as the Legislative Liaison for the Colorado/Wyoming Chapter. DeVries monitors state and federal policy-making actions affecting the transportation engineering industry.