Innovative Solutions for Water Supply and Environmental Remediation

S.S. Papadopulos & Associates, Inc. (SSP&A) is an internationally-recognized, employee-owned groundwater and environmental consulting firm focused on providing specialty services in water-resource evaluation, geochemistry, and environmental remediation.

Services and Expertise

To meet the ever-changing needs of the groundwater industry and provide the highest level of technical expertise based on sound science and engineering, we perform critical data analyses to develop practical solutions to complex problems. By prioritizing the importance of innovative thinking and multidisciplinary insights for resolving water resource and environmental issues, SSP&A continues to deliver effective solutions in the following core areas:

Project owners, consultants, and contractors benefit from SSP&A’s ability to collaboratively apply our multi-disciplinary capabilities and expertise in our core service areas to each project.

Model development, customization, implementation, and client staff training

Remediation and Engineering

Environmental remediation and engineering solutions for soils, groundwater, and surface water

Geochemistry

PFAS and emerging contaminants, stable and radiogenic isotopes, geochemical statistics, organic and inorganic contaminants, MNA, and reactive transport modeling

Database management, GIS implementation/design/map creation, data evaluation and interpretation, web tools, and data integration and visualization

Expert Witness and Litigation Support

Unbiased, independent, fact-based technical expert services for a variety of legal matters related to groundwater, surface water, and soil remediation projects

Sampling and monitoring programs, site characterization, well evaluation and optimization, GAC treatment systems/sensors/controls, and data collection, processing, and interpretation

Groundwater modeling and related software development, support, and training

Geophysics

Geophysical investigations, assessments, logging, data review and analysis, interpretations, research, and surveys for water resources and environmental remediation projects

Publications

SSP&A actively contributes to the development of the field of groundwater science through the publication of papers and textbooks, and presentations at technical conferences.

“I would like to thank you in behalf of the U.S. Army Corps of Engineers, Albuquerque District for your efforts in support of the “Middle Rio Grande Water Supply Study. Your performance has been exemplary, and your firm is commended for the knowledge and professionalism exhibited in the execution of this project… an overall rating of “Excellent” for the engineering services performed.”

— Theresa Armijo, Contracting Officer, Department of the Army Albuquerque District, Corps of Engineers

“MANAGEMENT: To date, SSP&A has been very proactive in communicating project information to GSA, and responding to GSA requests. They have responded to any requests in a timely fashion, and they have been an excellent liaison between GSA EPG, other DFC personnel and their subcontractors. Their proposals and responses to numerous Work Change Requests (WCRs) have been well supported and have not required additional backup or extensive clarification. Additionally, SSP&A has provided exceptional management of the contract. They have provided seamless management of multiple subcontractors and their own project personnel. Well qualified and competent personnel have been provided during all phases of the project and from the Contractor’s personnel through the lower tier subcontractors have been easy to work with. All invoicing has been on time, concise and correct.”

— Beverly A. Carey, Contracting Officer, U.S. General Services Administration, 8PSD

“The quality of the professional services provided by you and S.S. Papadopulos & Associates, Inc., has been excellent – meeting and exceeding expectations. The work product has always been provided in a timely fashion, enabling the State of Kansas to meet its litigation deadlines. In addition, whenever budget limitations have been imposed, they have been met. I consider the work that you and your firm have done on these projects to have been very cost-effective.”

— John B. Draper, Montgomery and Andrews, to Steven Larson regarding his services as expert hydrogeologist and modeler

“Matt [Tonkin]’s presentation style is second to none. He is gifted at understanding when simple versus complex groundwater models are appropriate. This has been very cost effective for my project. Matt’s positive attitude has helped our team minimize the pressures of working on a very tight remediation schedule.”

—Mark Byrnes, Soil and Groundwater Remediation Project, Fluor Hanford
“… the quality of work performed is excellent, meeting or exceeding our standards for expert services… Work products consistently have been produced on time and within budget. SSP&A’s Boulder staff have worked effectively with us to achieve project goals often requiring rapid turn-around times. Ms. Hathaway has been particularly successful in identifying deficiencies in hydrologic work conducted by adverse parties, and in providing timely and necessary data and analyses to gain agency support for Emerson’s position in this matter. I can recommend without hesitation the services of your firm in the area of hydrology and litigation support.”
— Harold J. Lamboley, Jr., Vice President, Emerson Electric

“SSP&A demonstrated very good quality with their deliverables throughout the entire duration of the contract. They were consistent in always generating the requested documents and always met the minimum requirements of the task and sometimes exceeded what was expected. They generated numerous maps and reports that aided Remedial Project Managers to assess the effectiveness of selected site clean-up remedies. SSP&A demonstrated very good scheduling techniques during this contract. They always met stated deadlines and sometimes were able to provide rapid results. They never missed a deadline and were able to balance multiple tasks/project simultaneously without sacrificing efficiency.”

— Daniel Olsson, Contracting Officer, U.S. Environmental Protection Agency Region 5

“It has been my pleasure to have Matthew Tonkin support my 200-ZP-1 groundwater remediation project here at the Hanford Site. I just wanted to thank you for allowing our team to use Matt on our project to assist the design of a groundwater treatment system to address the third largest chlorinated solvent problem in the world (>5 square miles in size). Matt’s skills were quickly recognized by both our team, the U.S. Department of Energy, EPA, Washington State Dept. of Ecology, Native American tribes, and stakeholder. Matt’s presentation style is second to none. He is gifted at understanding when simple versus complex groundwater models are appropriate. This has been very cost effective for my project. Matt’s positive attitude has helped our team minimize the pressures of working on a very tight remediation schedule. Please let Matt know that his efforts are very much appreciated.”

—Mark Byrnes, Soil and Groundwater Remediation Project, Fluor Hanford

“On behalf of the Board of Supervisors, I thank you very much for your time of dedicated service to the County as a member of the Water Resources Technical Advisory Committee. You have been an indispensable asset to our community. The time and dedication that you have given to the citizens of Loundoun County has not gone unnoticed, and I hope you take pride in the fact that your work has improved the lives of our neighbors. I trust that you will continue to invest in this beautiful community, and I wish you all the best in the years to come.”

— Scott K. York, Chairman, Loundoun County Board of Supervisors

Professional Affiliations

SSP&A is affiliated via staff memberships with the following organizations:

SSP&A Solutions

Learn how our professional services and innovative technologies can contribute to the success of your project.