Mait Walker, Pe Email & Phone Number

Cleveland

Lead the team for rigorous groundwater sampling program of 155 monitoring wells for remediation of a former cement plant (Petoskey, MI), focusing on stringent measurement of low-level mercury in parts per trillion Analyze groundwater data to predict and report landfill leachate plume migration as part of a Long-Term Monitoring Plan Perform Phase I environmental assessment of oil and gas sites and report for due diligence of real estate property transfer

Designed and installed soil and groundwater remediation systems including air sparge, soil vapor extraction, and chemical oxidation injection at numerous sites with petroleum hydrocarbon contamination throughout Colorado, Wyoming, and Utah many of which have received closure and NFA statusCompleted a full technical design of an aerated lagoon wastewater treatment system for an Afghan National Army forward operating military base through contract with the U.S. Army Corp of EngineersDeveloped a technoeconomic model to evaluate the treatment and disposal of produced water from oil and gas developmentOversaw the construction of the stormwater management system for the Midtown, Arvada residential developmentCompleted multiple phase I/II environmental site assessments and created several Stormwater Pollution Prevention Plans (SWPPP)Deployed for emergency response sampling, documentation, and oversight of environmental hazards through Superfund Technical Assessment and Response Team (START) contracts to EPA ect proposals.

Continual part time contract work conducted outside of other job requirements.Perform design calculations, AutoCAD drafting, and create detailed design specifications on numerous projects including structural design of residences and several wastewater treatment systems.

Served as project manager, system designer, AutoCAD drafter, and field technician for wastewater treatment systems ranging in size from residential to small scale decentralized plants. Wrote technical guidance documentation for the water programs (“Petals”) of the Living Building Challenge 2.0.

Designed and installed innovative onsite wastewater treatment systems including constructed wetlands and recirculating sand filtersConsulted on the design and implementation on rainwater harvesting, water conservation, and wastewater treatment for Desert Rain, the first Living Building Challenge residence in Bend, Oregon which supplies 100% of its water needs through rainwater harvestingPublished technical guidance documents for stormwater and wastewater management for Leadership in Energy and Environmental Design (LEED) and the Living Building Challenge 2.0

Recycle Plant

Maintained and repaired treatment plant process equipment including pumps, blowers, sand filters, and dissolved air flotation systemsConducted regular wet lab chemistry for process control and chemical dosing systemsTrained as a level A First Responder for liquid chlorine leaks

Wrote technical guidance documentation for LEED projects and LEEDuser, a LEED guidance tool developed in partnership with Building Green and the US Green Building Council. Conducted engineering technical review and construction oversight for a constructed wetland system for a resort.

Performed preliminary design site visits. Also contributed significantly to the research and the design of innovative wastewater treatment projects.

Designed and installed innovative onsite wastewater treatment systems incorporating evapotranspiration, drip irrigation, and recirculation systems, including some permitted for reuse standardsAdvanced the design-build process of the Solar Aquatics System® 27,500 GPD innovative wastewater treatment system utilizing planted aquatic cells, constructed wetlands, and return activated sludge for New England Biolabs as part of their LEED certification Analyzed project sites to maximize water conservation to include the use of low flow fixtures, graywater reuse, and rainwater harvesting systems

Individually operated Inductively Coupled Plasma machine in order to test wastewater samples for heavy metals.

E-commerce start-up targeting US expats. Responsible for catalog and database management and fulfilling orders from on-line shoppers by pick, pack and ship to door delivery worldwide.