About Liberte Environmental Associates ( LEA, Inc. )
The Environmental Salient discussion.
Technical Workplace by Dave LaLiberte, Principal Engineer at LEA, Inc.
The Environmental Salient discussion.
Technical Workplace by Dave LaLiberte, Principal Engineer at LEA, Inc.
Engineering Services We Provide:
- Discharge Mixing Zone Study, Requirements, Modeling. [Public Domain MZ models]. EPA MZ model manuals: Visual Plumes; DOS PLUMES; CORMIX1; CORMIX2; CORMIX v.3.x
- River & Marine Water Quality Evaluation, Modeling, Compliance.
[Public Domain WQ Models] EPA WQ Model Manuals: QUAL2K (2009); & WASP7 user's interface guide (2010).
- Rivers and Marine Water Quality Field Study.
- Total Maximum Daily Load (TMDL) - Review and Response.
Draft TMDL have been added for: Tualatin River Subbasins for which the the public comment period has been extended through December 14, 2011.
Final TMDL have been added for: Tualatin River Subbasins (2001) and the Willamette River Subbasins.
- Wastewater NPDES Permit Writing, Review and Response.
NPDES Permits and other related documents have been posted for: EPA offshore discharges from Oil and Gas exploration in the Arctic Ocean as well as the BP oil spill (BPOS) in the Gulf of Mexico (GOM); Shell (2010) and ConocoPhillips (2013) Chukchi Sea Exploration Plans in the Arctic Ocean with public comment on the Shell CSEP ending December 7, 2011; Beaufort Sea Notice of Intent (NOI) to discharge; Mudline Cellar (MLC) illustration for ice keel and ice scour; NOAA Fisheries oil industry effects in the Arctic Ocean; BOEMRE EIS for the Beaufort and Chukchi Seas; USGS Arctic sea ice reduction, sea ice recession and increased development activity; BOEM 2012-2017 Draft Programmatic EIS public comment ending January 9, 2012; USGS Arctic sea ice reduction, sea ice recession and increased development activity; Oregon STP (Sewage Treatment Plant) permit documents for the Lower Columbia River Estuary (LCRE), Willamette River, Tualatin River, Oregon Coast and other river basins; Oregon IW (Industrial Waste) permit documents for the LCRE. Washington STP permit documents for the LCRE. Washington IW permit documents for the LCRE including GP Camas Mill and Steelscape. [Alternative site can be found at www.ee83.com]
- Industrial and Municipal Effluent Wastewater Characterization.
- Pump and Pipeline Hydraulic Analysis.
- Pipeline Effluent Quality Modeling.
- Expert Witness, Analysis, Reporting & Testimony in Ambient Water Quality.
- Title V Air Permits Potentially Affecting Ambient Water Quality. [Alternative site can be found at www.ee83.com]
- TMDL - Total Maximum Daily Load Review, Analysis and Response.
TMDLs Potentially Affecting Ambient Water Quality [Alternative site can be found at www.ee83.com]
- Outfall Diffuser Design and Review.
- Thermal Discharge Analysis.
- TMP - Temperature Management Plans.
- Environmental Permitting Requirements.
- Wet Weather Municipal Discharge and Stormwater Evaluations.
- Alternatives Costs & Benefits Analysis - Effluent Treatment Design Requirements.
- Site Mixing Zone Mapping - Conductivity & Dye Study Investigation.
- Watershed and Water Resources Planning.
- See Environmental Salient for links to sites discussing: SHORT short-list of the USGS' Arctic Studies Initiative, fish contaminated with mercury posing worldwide threat, Hood Canal is called home by non-native sea squirts, EU deal to reduce carbon emissions, tidal-power generation in Puget Sound, new coal-fired power plants, sewage overflows, aging infrastructure, Exxon Valdez oil spill, plug-in hybrids, China's increasing pollution, greenhouse gases, ocean vertical currents, emissions trading, carbon taxes, environmental economics, Klamath dams, Everglades, ecology, risk-assessment, and other issues in the US and international forums.
- Technical Workplace discussion by Dave LaLiberte, P.E. at LEA, Inc. includes: Puget Sound and Cook Inlet work; updated EPA Effluent Guidelines Program Plan webpage; Oil and Gas Extraction Synthetic Drilling Fluids development document and ELG are added to this website; Ocean Oil and Gas Extraction Offshore Subcategory development document and ELG are added to this website; Arctic Studies Initiative (ASI) related documents; operative regulatory documents on day of BP Oil Spill in the Gulf of Mexico; seminal Puget Sound circulation and velocities documents; mixing zone diffuser port velocities; handy water science utilities; important mixing zone related regulatory documents; effluent limitations regulatory program documents including technical support documents and 40 CFR 400 to 471; and links for ordering from the EPA some key development documents for industry effluent limitations guidelines. The full development document for Seafood including Mechanical Bottom Fish is now compiled and available on this website.The full development document for Oil and Gas Extraction Coastal Subcategory is now compiled and available on this website.
You may contact us at
© 2011 Liberte Environmental Associates, Inc.
All rights reserved.
Liberte Environmental Associates, Inc.
P.O. Box 3678
Wilsonville, Oregon 97070-3678
Tel: 503 582-1558
All rights reserved.
