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Credere's Staff

Credere's staff is dedicated to providing our clients with the highest quality of service and expertise. Combined, Credere's staff has over 60 years of experience in the environmental, engineering, and geologic fields. Our staffs experience is summarized below.

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

Ms. Patten is a geotechnical and environmental engineer with over 15 years of engineering experience and co-founder of the woman-owned Credere Associates, LLC.  Ms. Patten currently serves as 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 Brownfields project Eastern Fine Paper in Brewer, Maine, and Superfund project Callahan Mine in Brooksville, Maine.  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 20 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.



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

Mr. Newcomb is a Geologist for Credere with over 15 years experience.  He is a Certified and Professional Geologist in Maine and New Hampshire, respectively.  Mr Newcomb 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.  He is also certified in the States of Maine and New Hamspire as an Asbestos Inspector.


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Jonathan O'Donnell
Geo-Environmental Engineer/Hazardous Building Material Specialist

Mr. O’Donnell is a Geo-Environmental Engineer and Hazadous Building Matreial Specialist with over 5 years experience.  He is certified in the State of Maine and New Hampshire as a Lead Inspector and an Asbestos Inspector.   He is also certified as a Radon Inspector in air and water.  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.

Allison (Allie) Drouin 


Ms. Drouin is a geologist with over 5 years of professional experience in all stages of phase I and Phase II environmental site assessments.  Ms Drouins experiences include environmental field sampling and monitoring, geotechnical explorations, contractor oversight, and report writing.  Her writing experience includes Phase I/Phase II reporting, project health and safety plans, Quality Assurance Project Plans,regulatory compliance status and completion reporting.  Ms Drouin project experience includes the investigation of vacant lots, commercial businesses, auto repair shops, laboratory space, farm land, industrial buildings, hydro dams, power plants and transportation infrastructures.




Matthew Cameron
Environmental Technician

Mr. Cameron is an Environmental Technician with Credere Associates, LLC.  Mr Camron is a native of Maine who has returned after spending  six years in the United State Coast Guard as a first responder and regulatory enforcement officer.  Mr Cameron has completed USCG Basic Training, USCG Marine Science Technician A School, and USCG Boarding Team Member School. Mr. Cameron has a comprehensive knowledge of federal regulations, operations and maintenance, critical thinking, and risk management.  He has conducted multiple search and rescue missions, vessel inspections, pollution responses, and investigations.  Mr. Cameron is currently pursuing an advance degree to further his knowledge of environmental issues and hazardous building materials.  

Matthew Kennedy
Environmental Scientist

Mr. Kennedy is an Environmental Scientist I with Credere Associates, LLC and holds a Bachelors of Science in Biology and Environmental Studies from Tufts University (2013). After his graduation, Mr. Kennedy worked at the Maine DEP as an AmeriCorps intern.  monitored wetlands and streams; maintained and calibrated field equipment; analyzed data, performed date quality assurance; and edited geographic data and created maps using Geographic Information Systems (GIS).