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.

Lead 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 Polluta ...
  • 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, inclu ...
  • 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 wate ...
  • 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 managem ...
  • 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 t ...
  • 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 pr ...
  • Keith Tolson, Ph.D.
    Keith Tolson is a Senior Principal Environmental Scientist based in Florida with more than 15 years of experience focused on environmental sciences. He Specializes in the application of risk-based ...
  • 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 stormw ...
  • 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. ...
  • 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 engin ...
  • 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 ...
  • 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 st ...
  • 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 ...
  • 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 mul ...
  • 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 ...
  • 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 experienc ...
  • Scott Forbess, P.E.
    Scott Forbess is a Principal Engineer based in California with more than 17 years of professional experience focused on remediation design, Remediation Investigation/Feasibility Study (RI/FS) progr ...
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.

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