Doug W. Durant, P.E., P.G.

Project Manager

An engineer-in-training with the ability to solve problems and successfully complete projects in many areas of environmental compliance.
Skilled in environmental regulations, site investigations, data collection, soil and groundwater sampling, and installing groundwater monitoring wells.

Served as project engineer for the design of a 60 GPM Arsenic Removal and Gallium/Gold Recovery System. The design included a covered structure, conveyance systems, material compatibility analysis, and bid package development.
Served as project engineer-in-training for the upgrade design of a 3,000 GPM Industrial Wastewater Treatment System. The design included a tank wall integrity testing, relining concrete basins, conveyance systems layout, installation support, start-up assistance, and a groundwater monitoring system.
Conducted a wastewater reuse study of an avionics manufacturing facility. Prepared preliminary design drawings and a report summarizing the study’s findings and reuse recommendations.

Developed Storm Water Pollution Prevention Plans for a number of major manufacturers under NPDES and TPDES general permit requirements.
Conducted inspections and evaluations of tank wall integrity, spill containment capacity, and conveyance systems for Spill Prevention Control and Countermeasure (SPCC) plans for industrial clients.

Assisted in design and application of treatment system for a large pond contaminated by construction activities. Provided engineering oversight and conducted treatment progress analysis.
Designed and constructed a system for the in situ biodegradation of high explosives. Managed the installation of the well field piping and cover. Provided operational support during the project.
Participated in the remediation of a secondary lead smelter superfund site. Work performed included air monitoring, sampling, and treatment of contaminated area.

Designed a ventilation booth that was used to transfer chemical from large totes to small pails for a chemical manufacturer. The design included an indoor structure with a plenum wall, air-handling unit, and associated ductwork.
Designed air pollution abatement systems for to recover methylene chloride by means of carbon adsorption.
Designed air pollution abatement systems for to recover hydrochloric acid by means of a scrubber system.
Designed sampling procedures and quality assurance/quality control protocols to screen stacks for NOx. Conducted the screening of the stacks and evaluated the data to determine estimated emission rate and possible reduction solutions.

Received closure under the Texas Risk Reduction Program (TRRP) for a storm water outfall that had been contaminated by operations at a semiconductor manufacturing facility. Activities involved with the closure included soil investigations, an Affected Property Assessment Report (APAR), and a Response Action Completion Report (RACR).
Received a certificate of completion under the TRRP for the remediation of a city’s vehicle maintenance facility. Activities involved with the closure included soil and groundwater investigations, an APAR, a Self-Implementation Notice (SIN), and a RACR
Received a Certificate of No Further Action from the Arkansas Department of Environmental Quality for a manufacturing facility that had groundwater impacted with diesel. Activities included horizontal and vertical product delineation, product removal, source identification, and source removal.
Conducted installation work, quarterly field sampling, and prepared reports for several industrial facilities under TCEQ’s Voluntary Cleanup Program.
Developed and implemented a study to investigate the use of passive diffusion bag sampling techniques to reduce cost and waste generation of standard groundwater sampling techniques.

Texas State Board of Registered Professional Engineers: Registered Professional Engineer 95651
State of Texas Board of Professional Geoscientists: Registered Professional Geoscientist 1250
Texas Commission on Environmental Quality LPST Project Manager

Hazardous/Toxic Waste Management (RCRA) Hazardous Materials Transportation (DOT)
OSHA 40-Hour Hazardous Waste Operation and Emergency Response Certification (29 CFR 1910.146 and 1910.120)
Certified for Confined Space Entry
Certified for Lockout/Tagout Procedures
Certified in Cimplicity Plant Edition

Caldwell Engineering, Inc.

P.O. Box 851325

Richardson, TX 75085
(972) 889-7200
Fax: (972) 889-8332

1322 Space Park Drive, Suite C287

Houston, TX 77058

(281) 333-2742

Fax: (281) 333-3192

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