More Articles...
Read the EPA Success Story for Eastern Fine Paper!
More Articles...

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 17 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.



Richard S. Vandenberg CG, PG
Senior Hydrogeologist/Senior Geologist/Brownfields QC Manager

Mr. Vandenberg is a Senior Hydrogeologist with Credere Associates, LLC with over 28 years’ experience in assessment, investigation, remediation of petroleum and hazardous waste, and development of water supplies.  Mr. Vandenberg has managed numerous compliance, assessment, investigation, and remediation projects including Phase I and Phase II environmental site assessments (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.  In addition, Mr. Vandenberg has also developed water supplies for communities and commercial/industrial water users in New Hampshire, Vermont, and Massachusetts.



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.



Coming Soon

Resume Vcard




Sean McNamara
Engineer/Project Manager

Mr. McNamara is an Engineer/Project Manager with Credere Associates, LLC and holds Ph.D. degree in Civil & Environmental Engineering from Carnegie Mellon University (2002).  He has experience in the statistical design of environmental monitoring programs, project development/management, a wide range of field sampling procedures, contractor oversight, and reporting.  Mr. McNamara has a research background in environmental chemistry, including the remediation and natural attenuation of PCBs and PAHs, the geochemistry of iron cyanide compounds from mine tailings, and the design of constructed wetland systems for wastewater treatment.  Mr. McNamara is currently managing Crederes' federal projects.  

Allison (Allie) Drouin, CG, PG 

Geologist/Assistant Project Manager

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 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.  Matt 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).  Matt is a certified Asbestos Inspector, Asbestos Air Monitor and Lead Inspector.

Mark Willis
Environmental Specialist

Mr. Willis is an Environmental Specialist with Credere Associates, LLC and Bachelors in Environmental Safety and Health from the University of Southern Maine (2008). Early in his career, Mark worked at USM and was responsible for maintaining life safety equipment, as well as facilitating Hazardous Waste removal and assisting with confined space entry.  Before joining Credere, Mark worked at Pine Environmental for 5 years as an equipment manager.  Mark maintained a wide range of field equipment used in the environmental industry and assisted various field staff on application and use sampling equipment.  Mark is a certified  Radiation Safety Officer, Asbestos Inspector, Asbestos Air Monitor, and Lead Inspector.




Sean Gannon

Mr. Gannon is a Geologist I with Credere Associates, LLC.  He holds a Bachelor of Science in Environmental Studies and Geology from St. Lawrence University (2015).  He began his professional career with the St. Lawrence County Planning Office, working on an agricultural atlas project in ArcGIS.  Since joining Credere in May 2016, Sean has worked on numerous Phase I and Phase II Environmental Site Assessments, with responsibilities including site research, GIS mapping, sampling and analysis design, field work, and reporting.  Sean is a Maine certified Lead Inspector, Asbestos Inspector, Asbestos Air Monitor, Radon in Air and Radon in Water Tester, and a New Hampshire certified Lead Inspector and Asbestos Inspector


Samantha Foote

Ms. Foote is an Engineer I with Credere Associates, LLC.  She holds a Bachelor of Science in Environmental Engineering from Worcester Polytechnic Institute (2016).  She spent a summer at the Town of Spencer, MA Utilities and Facilities Department, working under the Superintendent, before starting her career with Credere in May 2016. Samantha has work a Samantha is a certified Asbestos Inspector and Lead Inspector. At Credere, Samantha has worked on several Brownfileds Phase I ESAs and has become involved in oversight of clean-up activies at the Prime Tanning Site in Berwick, Maine. 

Stacy Towne
Environmental Specialist

Mr. Towne is an Environmental Specialist with Credere Associates, LLC.  Mr. Towne specializes in identifying hazardous building materials and conditions including lead, asbestos, PCBs, and universal and other regulated wastes.  He graduated from Salem State University in 2011 with a Master of Science degree in Geographic Information Science and from the University of Southern Maine in 1998 with a Bachelor of Arts in Environmental Science and Policy. Mr. Towne has a very diverse background, from eight years in the marine industry on board a chemical product tanker to GIS research assistant investigating risk assessment for energy emissions.  Stacy started with Credere in January 2017.

Jenn Taiani
Administrative Assistant

Ms. Taiani has worked at Credere since 2011 as a part-time administrative assistant.  Jenn is a graduate of University of Southern Maine.  Jenn's responsibilities included day to day bookkeeping, reproduction, and ordering supplies.  Recently, Jenn is completed the work required to become a notary in the State of Maine.  Jenn is a dedicated, loving mother of three, who keep her busy and looking forward to her hours in the office.