Our specialists are well-versed in the National Environmental Policy Act (NEPA) and Massachusetts Environmental Policy Act (MEPA) processes. We resolve impact assessment and permitting issues associated with water resources, wetlands, land use, and threatened and endangered species, from the early identification of risks to the proper mitigation of impacts during construction. Tetra Tech helps clients comply with environmental regulations at the local, state, and federal level. Site identification, evaluation, and prioritization.As the focus of stormwater management has continued to evolve and move toward distributed solutions of GI, Tetra Tech has partnered with numerous clients to assess, plan, design, and implement innovative GI practices. Tetra Tech’s thorough experience with green infrastructure (GI) includes implementing a wide range of solutions that support regulatory compliance, increase resilience, and provide community enhancements. Pipeline routing studies and environmental assessments for new sewer systems.Combined sewer overflow (CSO) and sanitary sewer overflow (SSO) studies.Capacity, condition, and operation and maintenance (O&M) assessments.Replacement and rehabilitation of sewers and trunks/interceptors.Facility planning, design, monitoring, and construction.Our work in wastewater collection includes long-term planning for combined and sanitary systems impacted by wet-weather flow, as well as design and construction-phase services for both new and rehabilitated sewers, force mains, interceptors, and pumping stations. Tetra Tech is routinely involved with the evaluation, planning, design, and construction of wastewater collection and conveyance systems. ![]() Wastewater treatment facility planning, design, monitoring and construction.Our engineers regularly perform hands-on process energy audits, comprehensive performance evaluations, and plant optimization. Tetra Tech’s wastewater treatment specialists combine their expertise in the design and operation of biological, physical, and chemical processes to meet our client’s needs for effective, efficient treatment facilities. Open trench, directional drill, jack and bore, pipe bursting, and microtunnel construction methods.Transmission main extension and replacement.With a professional focus on water resources management, Tetra Tech has extensive experience in the planning, design, and construction management of small-diameter and large-diameter water transmission. Management consulting including financial planning and rate studies, and threat and vulnerability assessments.Instrumentation and control systems (SCADA).Water treatment facility planning, design, monitoring, and construction.Whether our clients are maintaining or improving existing water supply infrastructure, planning new construction to expand capacity or enhance water quality, or seeking to minimize lifecycle costs, Tetra Tech provides sustainable solutions to complex drinking water challenges. Tetra Tech’s integrated approach to water resources management helps clients create a reliable, modern road map for their water systems. Our civil and environmental engineers have expertise in the design of water, wastewater, and stormwater utilities to support healthy, vibrant communities. ![]() Tetra Tech supports municipal clients in designing resilient infrastructure to meet the future needs of their communities, while adhering to local, state, and federal regulations. We combine state-of-the-art techniques with demonstrated best practices to help clients meet their objectives in a way that maximizes the benefit of their investment. For more than 50 years, Tetra Tech has helped provide safe, abundant water supplies wastewater collection and treatment systems and stormwater management, including green infrastructure.
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