Discharge Permitting and Receiving Water Studies

Geosyntec provides comprehensive water quality permitting and receiving water assessment services. Our services include National Pollutant Discharge Elimination System permitting negotiations as well as technical support for wastewater treatment plant discharges, combined sewer overflow systems, and stormwater management.

Our water resources practitioners also specializes in water quality assessments in large watersheds, rivers, and reservoirs. Many of these projects are multi-year efforts where our services have resulted in the elimination of unnecessary treatment works, saving clients significant costs.

Antidegradation and water quality reviews are an essential component for permitting wastewater discharge expansions, and they are used by regulators to determine treatment system requirements and effluent limitations. Permittees must prepare the Review submittals for new or expanded treatment plants. These reviews can range in complexity from basic qualitative evaluations to complex modeling scenarios using actual stream data.

Geosyntec's thorough understanding of the antidegradation and water quality review process assures that the most appropriate review approaches are selected when we help our clients pursue new or expanded wastewater treatment plants.

Regulators with the U.S. Environmental Protection Agency and state regulators emphasize water quality-based permitting of municipal, domestic and industrial wastewater discharges to ensure that water quality standards are attained within receiving streams, rather than basing permits on technology-based limitations that may not be adequately protective of the specific water resource.

Geosyntec's water quality-based permitting and wasteload allocation studies may range greatly in complexity, and regulatory involvement and negotiations are critical elements within such projects. Wasteload allocations may be derived using a variety of approaches, and water quality-based permit limits are derived after determining the most appropriate and defensible wasteload allocation.

Our engineers and scientists routinely use state-of-the-art field monitoring approaches to calibrate water quality models and establish appropriate water quality criteria. We have saved our clients several million dollars in infrastructure investments by investigating conservative permit assumptions and ensuring a sustainable balance between resource needs and practical budget constraints.

Our Consultants

  • Lisa Austin, P.E.

    Lisa Austin is a Principal Engineer based in California with more than 25 years of experience focused on water quality and stormwater management. Lisa's practice focuses on National Pollutant Discharge Elimination System (NPDES) permitting; municipal stormwater program planning and implementation; development project water resource master planning and environmental impact analysis, stormwater best management practice (BMP) selection, design, and maintenance; and Total Maximum Daily Lo ...
  • David Bonnett, P.E., P.Eng.

    David Bonnett is a Principal Engineer based in Massachusetts with 30 years of experience focused on water and natural resources engineering and waste containment facility planning and design, including environmental design, permitting, and construction oversight. He has significant experience with construction quality assurance (CQA) and construction management (CM) for the installation of geosynthetics and soil liners for waste management facilities and for remedial construction acti ...
  • Mark Hanna, Ph.D., P.E., LEED AP

    Mark Hanna is a Senior Principal Water Resources Engineer based in California with over 20 years of experience focused on water resources management. His experience in water rights, integrated water resources, and environmental restoration planning and implementation allows him to offer clients comprehensive solutions to the growing problems of water supply and demand in the natural and man-made environment. Mark specializes in large system hydraulics, hydrology, surface water and gro ...
  • Poppy Staub

    Margaret "Poppy" Staub is a Senior Principal Geologist and Environmental Engineer based in Colorado with more than 20 years of experience focused on environmental compliance, Superfund site management, pollution prevention practices, and management systems development for mountain resorts and clients in the mining, oil and gas, extractive metallurgy, biomedical, and manufacturing industries. Along with supporting an array of corporate clients on high-level strategy with respect to env ...
  • Keith Tolson, Ph.D.

    Keith Tolson is a Senior Principal Environmental Scientist with more than 15 years of experience focused on environmental sciences. He Specializes in the application of risk-based principles to support legal and regulatory requirements. Keith provides expert technical and strategic consultation on matters related to regulatory compliance and litigation. He also develops and supports public risk communication concerning the health effects of chemicals in air, water, soil, sediments, consumer p ...
  • Eric Strecker, P.E., BCEE

    Eric Strecker is a Senior Principal Water Resources Engineer based in Oregon with more than 30 years of experience focused on the design, monitoring, and evaluation of stormwater best management practices (BMPs) and the development of major project and watershed master plans. Eric has provided technical direction and assistance to public and private sector clients in stormwater master planning, National Pollutant Discharge Elimination System (NPDES) permitting, total maximum daily loa ...
  • Kim Williams, P.E., CPSWQ

    Kim Williams is a Senior Consultant Water Resources Engineer based in California with more than 20 years of experience focused on civil and environmental engineering. Specializing in stormwater quality compliance at a programmatic and site-specific level for both private and public sector projects in the construction, industrial, and municipal sectors, Kim has advised clients across the United States in water quality and compliance activities, often for high-risk or litigation-driven ...
  • Adrienne Nemura, P.E., BCEE

    Adrienne Nemura is a Senior Principal Water Resources Engineer based in Michigan with more than 30 years of experience focused on helping clients identify cost-effective and sustainable solutions to meet their water quality goals. She has worked for more than 40 cities and wastewater utilities and also state and federal regulatory agencies, industrial facilities, airports, attorneys, consulting firms, non-profit organizations, and trade associations. As a consultant, Adrienne uses ada ...
  • Michael Lodato, P.G.

    Michael Lodato is a Principal Geologist based in Florida with more than 25 years of experience focused on the field of hydrogeology, site assessment, and remediation using innovative technologies. Specializing in the evaluation of industrial wastewater and contamination assessment and the remedial design of sites impacted with chlorinated solvents, metals, pesticides, and petroleum products, Mike has spent his career developing cost effective environmental solutions for public and pri ...
  • Mark Ellard, P.E., CFM, D.WRE

    Mark Ellard is a Senior Principal Water Resources and Environmental Engineer based in Florida with more than 20 years of experience in diverse watershed management, water quality assessment, and stormwater design projects. Mark's water resources background includes watershed management and master planning; floodplain management; pollutant load assessment; National Pollutant Discharge Elimination System compliance; low impact development (LID); environmental resource permitting; and ...
  • Ganesh Krishnan, P.E., D.WRE

    Ganesh Krishnan is a Senior Principal Engineer based in Georgia with more than 20 years of experience focused on water resources and geoenvironmental engineering. Ganesh specializes in design engineering, regulatory compliance, and programmatic support for public and private sector clients throughout the United States. Ganesh brings consulting expertise in the design of surface water management systems; BMP evaluations; steep terrain hydrology and hydraulics; hydrology and hydraulics ...
  • Kathleen Harrison, P.G. QSP, QSD, QISP, ToR

    Kathleen Harrison is a Principal Geologist based in California with more than 20 years of experience focused on watershed management, stormwater pollution prevention, and erosion control. She is a significant contributor to water resource projects across the United States. From power companies to petroleum producers to commercial developers, her clients depend upon her in-depth understanding of industrial, construction, and municipal National Pollutant Discharge Elimination System (NP ...
  • Brandon Steets, P.E.

    Brandon Steets is a Senior Principal Water Resources Engineer based in California with more than 16 years of experience focused on helping clients develop cost-effective solutions to their complex regulatory compliance issues related to state and federal water quality requirements for surface water. He specializes in NPDES and TMDL regulations, pollutant source investigation and special study design, monitoring, modelling, and Green Infrastructure planning and design. Brandon has led ...
  • Robert Hartzel, CLM, CPESC

    Robert Hartzel is a Principal Water Resources Scientist based in Massachusetts with more than 20 years of experience focused on leading water resources restoration, watershed planning, and environmental permitting projects. Water Resources Assessment and Management: Bob is a Certified Lake Manager (CLM), a Certified Professional in Erosion and Sediment Control (CPESC), and professional wetland scientist.  His surface water management expertise includes trophic st ...
  • Ken Susilo, P.E., CPSWQ

    Ken Susilo is a Senior Principal Water Resources Engineer based in California with more than 20 years of experience focused on urban stormwater management. Ken specializes in the development of multi-benefit, environmentally-sensitive solutions to stormwater management and water conservation design and planning efforts by applying leading-edge technologies to enhance the natural and built environment. Specializing in the application of innovative engineering design, hydraulics, and hy ...
  • Tom Fendley, P.E.

    Tom Fendley is a Principal Environmental Engineer based in Georgia with more than 30 years of experience focused on civil/infrastructure design, construction engineering and contract administration, water resources engineering, and stormwater management. Tom has worked extensively with a wide variety of public and private sector clients, including the City of Atlanta, the City of Gainesville, Forsyth County, Gwinnett County, Cobb County, Athens-Clarke County, the Clayton County Water ...
  • Philip Reidy, P.E.

    Phil Reidy is a Principal Water and Natural Resources Engineer based in Kuala Lumpur with over 25 years of experience focused on geotechnical and stormwater management. He has specialized experience and is an industry leader in the design, construction, and technology development of innovative rainwater harvesting and stormwater management systems. As a consultant, Phil directs the development of integrated harvesting and stormwater management system strategies and all aspects of syst ...
Geosyntec Consultants
Geosyntec is a specialized consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

Follow Us