Geosyntec Consultants Logo

Eric Strecker

Hydropower Licensing and Compliance

2026-09-23T13:26:26-06:00April 15th, 2026|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

To help clients achieve stringent water quality goals, Geosyntec provides rigorous assessment and modeling services to assess the sources and factors that affect the delivery of critical pollutants across watersheds. Through our comprehensive studies and analyses, we provide technically defensible tools and approaches that can be used in the development of Total Maximum Daily Load (TMDL) calculations and watershed protection plans. In addition, we frequently turn to Use Attainability Analyses to examine site-specific water quality criteria that affect attainability goals under natural, human-caused, and economic conditions. Our hydrodynamic and water-quality models integrate inputs from point and nonpoint sources to support our engineers and scientists as they study impacts on water quality in receiving water. These models allow us to understand the assimilative capacities of a given body of water, propose best management practices that can affect pollutant impacts, and predict the time required for a system to recover after being altered. Using watershed studies, water quality monitoring, and hydrological and hydrodynamic modeling, we also can assess compliance with local, state, and federal water quality standards. Using all this information, we are better able to evaluate the magnitude, frequency, and duration of impacts of a wide variety of pollutant sources. Our practitioners offer extensive experience with geographic information system applications for spatial analysis, planimetric and thematic mapping, and data representation. We employ watershed models including the Watershed Characterization System (WCS), Better Assessment Science Integrating Point and Nonpoint Sources (BASINS), and the Watershed Assessment Model (WAMView). We also employ the Water Quality Analysis Simulation Program (WASP), the Environmental Fluid Dynamics Code (EFDC), and the Stream Water Quality Model (QUAL2K) for hydrodynamic and water-quality models. Our practitioners are at the forefront of policy analyses, regulatory compliance, and technology applications that promote sustainable water resources management and ecosystem restoration. We have extensive experience helping local governments develop and negotiate long-term control plans for combined sewer overflows, National Pollutant Discharge Elimination System (NPDES) permits, and consent orders. We also comment on Clean Water Act issues at the state and national level, including the development of new recreational use criteria for water bodies across the county and for the U.S. Environmental Protection Agency's new framework for integrated planning for wastewater and stormwater.

Greenhouse Gas Emission Offset Evaluation and Trading at a Town-owned Landfill

2026-06-16T14:29:57-06:00March 23rd, 2026|Tags: , |

The County of Santa Barbara in southern California needed to enhance its available data resources with which to manage its stormwater runoff water quality. The County felt that there were significant gaps in existing data that it needed to make long-range planning decisions.In particular, there were significant data gaps in their GIS system, such as detailed estimates of impervious cover, recent high quality multi-spectral orthophotography, etc. These data were needed in order to facilitate the implementation of stormwater best management practices, or BMPs. Ultimately, with limited funds with which to implement BMPs, the County's goal was to prioritize which areas needed attention first in terms of retrofits, new nonpoint source water quality control, etc.

Andrea Siefers Coauthored AERMOD Modeling for Health Impact Assessment of Dimethyl Mercury Paper Presented at the Air Quality Modeling Conference

2026-03-15T10:21:30-06:00June 3rd, 2019|Tags: , , , , , , , , , , , , , , , |

Andrea Siefers, PE (North Carolina) coauthored a paper entitled "AERMOD (American Meteorological Society/Environmental Protection Agency Regulatory Model) Modeling for Health Impact Assessment of Dimethyl Mercury" that was presented at the Guideline on Air Quality Models: Planning Ahead Conference from March 19-21, 2019.

Geosyntec Practitioners Presented on Water Distribution and Stormwater Management at the GAWP Spring Conference & Expo

2026-03-15T10:21:30-06:00May 31st, 2019|Tags: , , , , , , , , , , |

Shira Colsky, PE, Jared Eubanks, PE, Antonio Sanchez, PE (Georgia), and Jessie Fears (Tennessee) presented on water distribution and stormwater management at the Georgia Association of Water Professionals (GAWP) Spring Conference & Expo at the Columbus Trade Center in Columbus, Georgia on April 23-24, 2019.

Geosyntec Staff Contribute to the 2019 Battelle Sediments Conference

2026-03-15T10:21:14-06:00January 29th, 2019|Tags: , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec professionals will make a substantial technical contribution at Battelle's Tenth International Conference on Remediation and Management of Contaminated Sediments at the Hilton New Orleans Riverside in Louisiana on February 11-14, 2019.

Geosyntec Project and Staff Received the Outstanding Stormwater Research Project Award from California Stormwater Quality Association

2026-03-15T10:21:09-06:00October 30th, 2018|Tags: , , , , , |

Geosyntec's project, International Stormwater Best Management Practices (BMP) Database, was honored by the California Stormwater Quality Association (CASQA) with the Outstanding Stormwater Research Project Award at CASQA's 14th Annual Conference in Riverside, California on October 16, 2018.

Adrienne Nemura and Eric Strecker at the 2018 Water Research Foundation Conference

2026-03-15T10:20:58-06:00May 21st, 2018|Tags: , |

Adrienne Nemura, P.E (Michigan) and Eric Strecker, PE, BCEE (Oregon) presented at the 2018 Water Research Foundation Conference in Atlanta, Georgia on May 8, 2018.

Geosyntec Participation at the 13th Annual CASQA Conference

2026-03-15T10:20:36-06:00October 16th, 2017|Tags: , , , , , , , , , , , , , , |

Geosyntec staff made a significant technical contribution to the 13th Annual California Stormwater Quality Association (CASQA) Conference entitled "CASQA in the Capital: Building Bridges for Water" at the Sacramento Convention Center on September 25-27, 2017.

Geosyntec Participation at WEFTEC 2017

2026-03-15T10:20:33-06:00September 19th, 2017|Tags: , , , , , , , , , , , , |

As in previous years, Geosyntec staff will make a significant technical contribution to WEFTEC 2017 in Chicago, Illinois on September 30 - October 4, 2017.  

Stormwater Management

2026-04-23T14:26:16-06:00June 1st, 2017|Tags: , , , , , , , , , , , , , , , , , , , , |

A significant aspect of Geosyntec's water and natural resources practice is our stormwater management expertise. In fact, the firm is known for its innovative work in urban stormwater and surface water quality management, including green infrastructure design for CSO controls, Low Impact Development, Best Management Practice (BMP) design, hydromodification management, and erosion and sediment control. Our personnel have helped shape the state of these practices nationally over the past two decades via joint research and project work with civil engineering faculty at outstanding academic institutions, as well as continuous involvement in original research, development, and application of techniques and technologies. As a result, Geosyntec is recognized for frequently facilitating the transfer of technologies from academia to commercial and public use. Our professionals have been a critical and ongoing part of an award-winning team maintaining the ASCE/US EPA International Database on Urban Stormwater BMP Design and Performance.  Geosyntec's experts in erosion control have developed and implemented nationwide site compliance audit programs, and have also provided critical post-fire emergency services after the San Diego and Orange County fires. Stormwater management planning and design (urban, transportation, industrial, commercial, agricultural, MS4 compliance) Sustainable stormwater solutions: green infrastructure, stormwater best management practices, low impact development, rainwater harvesting Stormwater monitoring and modeling Water quality crediting and watershed-based mitigation approaches NPDES permitting and receiving water studies (watershed planning, total maximum daily loads and implementation plans) Erosion and sediment control: Construction NPDES compliance and post-fire erosion and sediment control

Go to Top