• Water
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  • Infrastructure management

Underwood Engineers

Civil and Environmental Engineering

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Wastewater

Underwood’s environmental engineering team brings long-term creative wastewater solutions to meet increasing financial demands and stricter regulatory requirements.
Underwood Engineers has extensive experience in all aspects of wastewater collection, pumping, and treatment. Underwood has been responsible for the design, construction and startup of dozens of wastewater treatment facilities for municipalities large and small.

Our clients include wastewater treatment systems in Somersworth, NH, Lebanon, NH, Hanover, NH, Kennebunk, ME, and Berwick, ME. Our work includes unique groundwater systems as well including Crotched Mountain Rehabilitation Center in Greenfield, NH, Mt. Washington summit building disposal system as well as other challenging groundwater systems.

Underwood has experience with Biological Nutrient Removal systems. Underwood has piloted, designed, and/or started up over 10 wastewater systems that have BNR. In fact, Underwood has many firsts including: the first BNR system installed in New Hampshire (Somersworth) and the first large scale Sequencing Batch Reactor in New Hampshire (Pease, Portsmouth).

Our design team works closely with our geotechnical, mechanical, structural and electrical engineering partners to provide full service solutions to our clients.

We have experience in finding cost-effective and innovative ways to remove infiltration and inflow (I/I). In fact, we have been a leader in the State when dealing with private I/I removal.

Our progressive thinking and cost-effective approach provides clients with a sound methodology to engineering issues. We have proven this over and over again by giving our clients straightforward and honest opinions, even if it is not exactly what they want to hear. Underwood provides guidance that is in the best interest of the community.

Underwood Engineers’ vision is to be the civil and environmental firm of choice in New England; recognized for technical expertise, exceptional client service and collegial teamwork. We take pride in cultivating client relationships based on exceeding expectations and mutual trust.

From simple pumping stations and multi-mile water main extensions to complex water treatment plants, Underwood has the expertise and experience to bring your project to a successful conclusion.

The financial cost of stormwater can be high. These costs include property damage from flooding, subsequent insurance costs, lowering of flood-prone property values, damage to infrastructure, soil erosion, stream degradation and loss of natural resources.

Civil and Environmental Engineering
© 2023 Underwood Engineers

PORTSMOUTH, NH
25 VAUGHAN MALL
PH 603.436.6192 FX 603.431.4733

CONCORD, NH
99 NORTH STATE STREET
PH 603.230.9898 FX 603.230.9899