Ethanol Manufacturing and Cogeneration Facility Air Quality Permitting

WLA prepared and submitted a Prevention of Significant Deterioration (PSD) Air Quality Notification of Construction Application for a proposed large-scale integrated hybrid fuel-grade ethanol manufacturing and cogeneration facility near Hugoton, Kansas.  The PSD application contained a detailed project description, potential to emit (PTE) calculations, Best Available Control Technology (BACT) analysis, regulatory applicability analysis, ambient air quality impact assessment (AQIA) and visibility, soil and vegetation, and growth impacts assessment. The main challenge encountered during the preparation of the PSD application was that the facility design had not been finalized.  Various components of the facility were being modified and/or re-configured concurrent with the application preparation activities.  WLA developed a comprehensive potential emissions calculation excel workbook that calculated the facility-wide PTE in such a way that the workbook was interactive, allowing for the company to make modifications to the process or projected emissions and obtain revised PTE values immediately.  This workbook was critical in the preparation of the BACT analysis, as the final design...
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Sarpy County Storm Water Management Plan Program Implementation

Sarpy County, NE WLA Consulting, Inc. was tasked with preparing a detailed implementation schedule for the work plan elements in Sarpy County's Storm Water Management Plan, which is part of the NPDES permit issued by the NDEQ. WLA provided and implemented stategies for reducing pollution into the Papillion Creek Watershed. By actively addressing the issue of pollution prevention and by establishing Best Management Practices, development and growth in the county will provide inherent economic benefits without impacting our natural resources. As the first step in implementing the Storm Water Management Plan, WLA partnered with Sarpy County's Geographic Information System (GIS) staff members to collect and organize information regarding the county's storm water system. WLA gathered field data pertaining to the storm water drainage patterns and outfalls for approximately 24 square miles of developed land and prepared a comprehensive storm water map for the county. All map-related work was completed in ArcGIS format and supplemented with AutoCAD format as required for details. The...
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Air Emissions Tracking Assistance

Nebraska WLA assists a number of manufacturing companies in Nebraska with tracking and calculating monthly air emissions. As required by facilities' air construction permits issued from the Nebraska Department of Environmental Quality (NDEQ), these companies must maintain air emission calculations on a monthly and rolling twelve-month total basis for all regulated sources. Each month, WLA receives production data collected from the facility and uses those quantities to complete the necessary air emission calculations and documentation. The information has been reviewed and accepted by the NDEQ during multiple air quality inspections. The data recorded from the air emissions tracking system is then utilized to easily complete and submit the annual air emissions inventories....
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Storm Water Pollution Prevention Plans

WLA assists facilities in writing and updating their Storm Water Pollution Prevention Plans (SWPPP). WLA helps facilities that are regulated under Storm Water Regulations to write site descriptions, document receiving waters and wetlands, identify and locate potential pollutant sources, establish storm water controls and identify Best Management Practices (BMPs). WLA has provided SWPPP assistance to a variety of facilities, including those in the following industries: Aviation Feed Ingredient Development Foundries Wastewater Treatment ...
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Spill Prevention, Control and Countermeasure Plans

Multiple Locations Facilities in the non-transportation sector that have an aggregate aboveground storage capacity greater than 1.320 gallons or buried storage capacity greater than 42,000 gallons must prepare Spill Prevention, Control and Countermeasure (SPCC) plans. WLA consultants visit and examine regulated facilities in order to prepare and implement or update facility-specific SPCC plans according to good engineering pratices. WLA consultants work with the facility owners and/or operators to establish procedures for required inspections and testing. WLA has prepared SPCC plans for facilities in the following industries: Aviation Biofuel Feed Ingredient Development Hazardous Waste Pharmaceutical ...
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Phase I Environmental Site Assessments

Phase I Environmental Site Assessments (ESAs) are the first step in the process of environmental due diligence. Phase I ESAs are usually required for entities purchasing real estate. WLA consultants perform on-site visits to the site in question to view the present condition and hazardous substances or petroleum usage, as well as to evaluate any liekly environmentally hazardous site history. WLA also evaluates the risks of neighboring properties and reviews the federal, state, local and tribal records for the surrounding areas. WLA conducts interviews with knowledgeable individuals about the site's history and performs an examination of past and present aerial photographs and USGS maps....
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Oak Ridge Estates Phase IV Lift Station

Council Bluffs, IA WLA provided engineering design services for a wastewater lift station at the Oak Ridge Estates residential development in Council Bluffs, Iowa. Wastewater generated from the residential development is collected and pumped into the City of Council Bluffs' collection sewer system. Project elements included two 111gallon per minute non-clog submersible pumps, wet well, valve vault and 2,030 feet of four-inch, high-density polyethylene (HDPE) force main. The lift station is controlled by a programmable logic control (PLC) system and is integrated with the Council Bluffs Board of Public Works microwave radio communication system. During the early phases of the lift station's operation, generation of significant wastewater odors was anticipated. As a result, an odor control and storage tank system was included. An anthraquinone and nitrate salt solution is injected into the wet well to chemically react with dissolved sulfide and prevent the formation of hydrogen sulfide....
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Air Permitting

Multiple Locations WLA has assisted numerous businesses apply for, renew, and modify federal and state air quality permits. WLA provides assistance in all aspects of permitting, including developing a permitting strategy, estimating emissions, preparing a permit application, impact modeling and assessment, performing Health Risk Assessments (HRAs), regulatory permit tracking, public workshops and hearing support, and permit compliance tracking. WLA has worked with both major and minor sources in the following industries: Aviation Biofuel Manufacturing Foundries Agricultural Equipment Manufacturing ...
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Mopac Trail Drainage

Sarpy County, Nebraska WLA was tasked by the Papio-Missouri NRD to design the rehabilitation of the Mopac Trail between Fairview Road and Schram Road along Highway 50 in Sarpy County, Nebraska.  The existing limestone trail was plagued with drainage and erosion problems.  Approximately 5,500 feet of trail was regraded or elevated and then resurfaced with crushed limestone.  Shoulders and drainage channels were constructed in locations along the trail to facilitate and control storm water drainage.  Upon completion of the trail rehabilitation, disturbed areas were sodded and/or seeded and WLA ensured the establishment of the new vegetation....
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Hell Creek Stabilization Study

Douglas County & Sarpy County, Nebraska WLA provided professional engineering services to Douglas County, in conjunction with Sarpy County and the Papio-Missouri NRD, for the analysis of the stabilization of Hell Creek.  Erosion and stream bank cutting are threatening bridges and other structures along the creek, as well as negatively impacting stream water quality.  WLA collected field data, conducted hydraulic and hydrologic modeling (HEC-RAS) and completed a sediment transport analysis using BEHI and Pebble Count data in order to identify and prioritize areas of concern.  Conceptual plans were developed, which included regrading of the existing channel and a combination of vegetative, bioengineering, and structural stabilization techniques. ...
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