About Us

Carlos A. Quintal, P.E.

President

Carlos A. Quintal, President of CAQ Engineering Associates, is a professional engineer registered in Massachusetts and New Hampshire who has been providing quality engineering services in the civil site planning and design, environmental and sanitary field for more than forty years. During the last thirty years he has been involved extensively in the study of wastewater treatment plants and subsequent interaction with the state regulatory agencies responsible for legislating and administering state programs. In this field he has designed, supervised construction and followed the operating progress of Rotating Biologic Contactors (RBC) plants, extended air plants (FAST), sand filter plants (Amphidrome), membrane filter plants (GE), Singulair plants.

In the past 30 years, Mr. Quintal has designed or is in the process of designing numerous treatment plants in Massachusetts. Of these three were designed, approved and constructed with a surface discharge. Battle Road Farm in Lincoln, MA is currently still operating and discharging to an on-site wetland with an hydraulic connection to Shawsheen River.

Mr. Quintal’s considerable skills as a professional engineer are not limited to wastewater treatment plants. He has been responsible for residential and industrial subdivisions and site plans fro offices, commercial properties, schools and airport design. For these projects, he has provided a full range of engineering services including roadway layouts, utility design and construction supervision and certification. He has recently obtained a sewer connection for Hale Reservation in Westwood, with whom he currently continues in the construction of the internal services.

Mr. Quintal also has considerable experience as a regulatory official. He is a past chairman of the Kingston, NH Conservation Commission. For 8 years he reviewed submissions to the Town of Chelmsford Conservation Commission, when he was responsible for reviews of wetland impacts, stormwater management, drainage, etc.. He has been retained for several peer reviews, for both municipality submittals and private development proposals.

Mr. Quintal graduated from Northeastern University. He has taught Soils Mechanics and Land Surveying at Franklin Institute of Boston and has offered seminars at the Lincoln Filene Institute of Tufts University and the New England Environmental Conference in March of 1988 and the Journal of the New England Water Pollution Control Association (Nov. 1991) and published an article presented at the January, 1991 meeting.

CAQ Engineering Associates, Inc.