About McDonald Morrissey Associates

McDonald Morrissey Associates was founded in 1990 by Michael McDonald and Daniel Morrissey. Before co-founding MMA, Mr. McDonald spent more than 20 years working as a hydrologist for the U.S. Geological Survey (USGS) at offices in Maryland, New Jersey, Michigan and at USGS headquarters in Reston, Virginia. Mr. McDonald served as the Groundwater Specialist for the northeastern region of the USGS and he developed the groundwater model MODFLOW, the most widely used groundwater model in the world. Prior to founding MMA, Mr. Morrissey worked for the U.S. Geological Survey in Utah, Maine and New England where he served as Chief of the New Hampshire/Vermont District of the Water Resources Division of the U. S. Geological Survey.

McDonald Morrissey Associates, Inc. (MMA) is nationally recognized for its expertise in the analysis of complex groundwater flow systems for industrial and government clients. MMA principals, share more than 100 years of experience in the conduct, management and technical oversight of a wide variety of groundwater projects. MMA’s project experience includes groundwater resource development, wellhead and source-water protection area delineation, mine dewatering, contaminant transport evaluations, groundwater remediation assessment, plume allocation, expert testimony and negotiation support, and regional groundwater flow system analysis.

MMA staff are members of the National Ground Water Association, American Water Works Association, Geological Society of America, American Geophysical Union, and the International Association of Hydrologists.

Daniel J. Morrissey, RPG

CV's are available on request. 

d-morrisseyMr. Daniel J. Morrissey, RPG

Mr. Morrissey is co-founder and principal of McDonald Morrissey Associates, Inc. Mr. Morrissey has 35 years of hands-on experience in solving quantitative hydrogeology problems, and is a recognized expert in the application of ground-water flow and solute transport models.

While with MMA, Mr. Morrissey has worked hydrogeologic investigations in more than 20 states. As an example, his recent experience includes low-level radioactive waste site characterization in North Carolina, review of mining permits in Wisconsin, water supply studies in New England, and expert technical support for industrial clients at Superfund sites in several states.

Prior to founding McDonald Morrissey Associates, Inc., he served as Chief of the New Hampshire/Vermont District of the Water Resources Division of the U. S. Geological Survey. As District Chief, Mr. Morrissey supervised a staff of 30 hydrologists and technicians and was responsible for data collection, hydrogeologic investigations, and quality control for all work completed by the office. He has conducted training courses in basic hydrology, surface geophysics, and ground-water flow simulation for the USGS, for the National Ground Water Association, state and local water management districts, and private clients in the United States and Australia.

Charles P. Spalding, PG

CV's are available on request. 

c-spaldingMr. Charles P. Spalding, PG

Mr. Spalding has more than 28 years of experience in the conduct of quantitative hydrogeologic investigations. During these 28 years, Mr. Spalding has applied many numerical and analytical models for the characterization of ground-water flow and solute transport, and performed hydrogeologic investigation management.

Prior to joining MMA, Mr. Spalding worked for HSI-GeoTrans, Inc. and was project manager for numerous hydrogeologic investigation projects including groundwater flow and solute-transport modeling for ground-water resource, plume delineation, and remedial design, site characterization of hazardous waste sites, and water resource development.

Mr. Spalding was responsible for the administrative management of the Site Characterization Group in the Sterling, Virginia office of HSI-GeoTrans. He is experienced in a broad range of field tasks, including well drilling and installation, ground-water sampling, soil sampling, geophysical surveys, and aquifer tests.


Contact Information

Phone: 603-228-2280       Address: 280 Pleasant Street Concord, NH 03301         E-Mail: nh@mcdonaldmorrissey.com