M. Theresa G. Patten, PE
Vice President/Senior Geotechnical & Environmental Engineer

Ms. Patten is a geotechnical and environmental engineer with over 10 years of engineering experience and co-founder of the woman-owned Credere Associates, LLC.  Ms. Patten currently serves as Vice President.  She oversees the daily operation of the office and is principally in charge of the financial and business management of the company.  Ms. Patten’s engineering experience involved a variety of environmental and geotechnical projects including Eastern Fine Paper and Waterville Industries Brownfields projects, hydrologic design and evaluations, landfill design and construction, and geotechnical engineering evaluations and construction.  Her project responsibilities have included managing, coordinating and conducting field work associated with remediation activities, hydrogeologic and geotechnical investigations; observing and documenting construction activities and providing construction quality assurance; performing calculations to support environmental, geotechnical and solid waste design projects; performing a variety of geotechnical and hydrological computer analyses; developing environmental and geotechnical and civil design recommendations; and report writing.

Rip Patten, PE, LSP, LEED-AP
Vice President/Senior Environmental Engineer

With over 15 years experience, Rip Patten, a Senior Environmental Engineer and Vice President of Credere, has coordinated, performed and reviewed over 600 ASTM Phase I ESAs, environmental compliance audits, subsurface investigations and remediation projects for a wide range of public and private sector clients.  Regarding Brownfields programs, Mr. Patten currently serves as Program Manager and Senior Environmental Engineer for the Southern Maine Regional Planning Commission (SMRPC) Brownfields program, Brewer and Maine DEP Brownfields Programs and serves as principal-in-charge for the Westbrook Brownfields, RPC Brownfields and Nashua Regional Planning Commission (NRPC) Brownfields Programs.  Mr. Patten has demonstrated an ability to develop strong working relationship with site developers and site owners and has extensive experience and knowledge in the various funding, site eligibility, and inventory process, as well as the selection of sites that will maximize economic development potential for a community.  He is a professional engineer (PE) in the States of Maine, New Hampshire, and Massachusetts, a Massachusetts Licensed Site Professional (LSP), and a LEED-accredited professional by the US Green Building Council.

Richard S. Vandenberg, CG, PG
Senior Hydrogeologist

Mr. Vandenberg is a Senior Hydrogeologist/Geologist for Credere and has over 19 years experience in assessment, investigation, remediation and disposal of petroleum and hazardous wastes, and water related projects.  Mr. Vandenberg has managed numerous compliance, assessment, investigation, and remediation projects including Phase I and Phase II ESAs, remedial investigations, remedial action planning, 3-D groundwater flow and contaminant transport modeling, groundwater extraction and treatment system design, soil vapor extraction design, soil removals, and in-situ chemical oxidation projects for clients across New England.  He is a Maine Certified geologist and a professional geologist in New Hampshire.

Judd R. Newcomb, CG, PG
Geologist/Project Manager

Mr. Newcomb is a Geologist for Credere with over ten years experience.  He is a Maine Certified Geologist and can assist in all aspects of a project from sample collection, field activities, and generation of reports.  Mr. Newcomb has experience in hazardous waste and petroleum related projects and has participated in compliance audits, remedial activities and site investigations for a number of sites throughout Maine and New England.  Mr. Newcomb has extensive experience in field analyses including immunoassay tests, and is trained and approved by the Maine DEP in X-Ray Fluorescence (XRF) field monitoring equipment.

Jedd S. Steinglass
Senior Project Manager

In a professional career spanning over ten years, Mr. Steinglass has completed environmental consulting projects throughout New England. Mr. Steinglass has served as a lead member of an Emergency Response and Remediation Operations Team. He has performed Phase I, II, and III Site Investigations, applying hydrogeologic and geologic methodologies in various and complex contaminant source settings. Following assessment, he has directed the design and execution of remediation projects in Maine, New Hampshire, Massachusetts, and Rhode Island including an outstanding variety of initial and comprehensive response actions, risk characterization, regulatory closure, and the application of usage restrictions. Mr. Steingalss has directed the characterization and cleanup of PCB remediation waste in accordance with EPA protocol and approval at challenging cleanup sites and scenarios. His range of abilities also includes the design and management of numerous preconstruction characterization and remediation efforts, which addressed soil, concrete, and regulated building materials. Mr. Steinglass has completed many projects associated with electrical distribution, transmission, substation and service centers and has acted as a primary project manager for a multi-national electric and gas utility. He is also a Maine licensed lead inspector.

Jonathan O'Donnell
Geo-Environmental Engineer

Mr. O’Donnell is a Geo-Environmental Engineer and Environmental Scientist with over three years experience.  He is also a certified State of Maine Lead Paint Inspector.   Mr. O’Donnell’s experience includes environmental investigations on a wide scale of industrial and commercial sites with hazardous waste and petroleum contamination.   Activities include background research; drilling and test pit investigations; groundwater contamination investigation, analysis, and modeling; vapor intrusion assessment; and hazardous building material surveys.   Mr. O’Donnell has experience in site remediation and redevelopment at numerous properties in Northern New England, including remedial planning; characterization, management, and removal of contaminated soil and hazardous building materials; and regulatory reporting.  Mr. O’Donnell also has experience in geotechnical design; landfill leachate systems; and beneficial reuse of industrial byproducts.

Silas Canavan, PE
Civil/Environmental Engineer

Mr. Silas Canavan is a Civil/Environmental Engineer for Credere Associates with over 6 years of professional experience in civil design projects including utility design; local and state project permitting; construction oversight; surveying; hydrologic stormwater modeling; stormwater management; and erosion and sedimentation control as well as environmental engineering including Phase I and Phase II Environmental Site Investigations and cleanup design and oversight. Typical responsibilities include engineering design and plan creation for remediation projects, project specifications and bid packages, erosion and sedimentation control plans, remediation and construction oversight, and Phase I and Phase II Environmental Site Assessments.

William (Billy) Edgar
Geologist/Engineering Technician

Mr. Edgar is a geologist and engineering technician for Credere Associates with 10 years of professional experience in civil engineering design, land survey, mapping field work and instrumentation experience including: highway survey and bridge surveys; roadway survey and design, high-precision topographic and as-built surveys; mapping of geomorphic formations; residential subdivision survey and design; wastewater and storm water infrastructure design; civil and process piping design for wastewater and water treatment facilities as well as environmental assessment including Phase I site investigation. Mr. Edgar has complimented his field work and engineering design experience with the recent acquisition (2009) of a Bachelor’s degree in Geosciences from the University of Southern Maine where he focused his studies in environmental geology, hydrology, and groundwater resources.