KSWA field representatives support the plant engineering group with daily assigned tasks throughout the plant. These activities have included:

• Asbestos and lead based paint surveys of renovation or maintenance areas.
• Mold Sampling and Consulting.
• Delineating and quantifying the asbestos containing materials and lead based paint.
• Completing an annual insulation damage survey of the facility.
• Bi-annual Radioactive Exit Sign Inventory.
• Slip Resistance Testing of floor areas throughout the plant.
• Performing on-site total dust monitoring during critical renovation projects.
• Abatement activities to complete scheduled renovations and maintenance activities.

In addition, KSWA provides on-call emergency consulting services to evaluate asbestos abatement plans for suspect materials that are encountered during routine operations. KSWA reviews the Anheuser-Busch Asbestos and Lead-Based Paint Operations and Maintenance Plans and helps maintain the documents for the Plant Environmental Health Safety and Security Department.

Central Biosolids Facility Environmental Assessment
Nashville, Tennessee
The proposed biosolids treatment facility will be located adjacent to the existing wastewater treatment plant near downtown Nashville, Tennessee and the Cumberland River, in an area with a history of industrial activity. Prior to occupation by the Metro Water Services, the property was used as a brickyard as far back as 1897. KSWA was contracted by Black and Veatch to provide environmental consulting services for this facility. During the geotechnical investigation, petroleum odors were observed in the subsurface soil and groundwater. Soil and groundwater samples collected from the geotechnical borings indicated highly elevated concentrations of petroleum constituents.

KSWA was contracted to complete a comprehensive Phase I and II Environmental Site Assessment at the proposed site. The primary objectives included the characterization and delineation of soil and groundwater contamination on site as well as the identification of potential additional environmental contaminants that may be encountered during construction of the facility.

The Phase I portion of the investigation included researching the historical uses of the property using resources consisting of historical aerial photographs, Sanborn Fire Insurance maps, regulatory database searches as well as on-site and off-site interviews.

During Phase II of the ESA, soil borings were advanced to delineate the soil contaminant plume identified in the northeast corner of the property. KSWA utilized direct-push technology to minimize impact to the site surface, expedite sample collection and generate practically no investigation-derived waste. Groundwater samples were also collected during Phase II. Rather than installing monitoring wells onsite, KSWA was able to relocate the placement of geotechnical piezometers and utilize them for groundwater contaminant delineation.

Upon completion of the Phase I and Phase II activities, KSWA prepared a comprehensive report detailing our findings from the historical research and the subsurface investigation and providing recommendations for construction activities that might be impacted by contaminated soil and/or groundwater. The recommendations included worker health and safety, contaminated soil management, contaminated groundwater management as well as environmental regulatory compliance.

Phase I and II Corridor Study Mississippi State Route 6
Carksdale to Batesville, Mississippi
Michael Baker Jr., Inc. retained KSWA to complete a Phase I Preliminary Corridor Study of properties within the proposed right-of-way and along the existing right-of-way of Mississippi State Route 6 from Clarksdale to Batesville, Mississippi. In October, 2004, KSWA completed the Phase I Preliminary Corridor Study for a bypass corridor that was projected to the south of Batesville. Reconnaissance was conducted at the properties at the intersection of existing roads and the projected alignment of the bypass to the south of Batesville.

KSWA identified 48 sites adjacent to State Route 6 that may have been utilized in a manner that could cause an environmental concern on the properties. Of these 48 sites, KSWA identified 21 sites that, based on information provided to KSWA, may be directly in line with the projected alignment of State Route 6.

Recommendations for each of the 21 sites included whether additional environmental assessment was necessary and, if so, what the probable contaminants of concern might have been.

Based on the Phase I Corridor Study, Michael Baker, Jr., Inc. requested that a Phase II Corridor Study be provided on eight sites. KSWA conducted subsurface investigation activities at the eight sites, identified as sites 3, 8, 9, 27, 28, 38, 39, and 40.

To evaluate the potential for environmental contamination, soil borings were advanced at these eight sites. Laboratory samples were collected at each boring location and were submitted for analysis. The analytical results from the soil samples collected indicated that environmental contamination was present
within the proposed alignment of State Route 6 at sites 9, 27, 38, and 39.

Nickajack Lake Sediment Assessment
Haletown, Tennessee
The State of Tennessee Department of Transportation has proposed construction of a new bridge across the Tennessee River ( Nickajack Lake ) near Haletown, Marion County, Tennessee to replace the existing Marion Memorial Bridge . Previous studies indicated that Nickajack Lake is impacted with PCB and dioxin contaminated sediments, believed to be the result of industrial discharge into Chattanooga Creek, which feeds the Tennessee River just upstream of Nickajack Lake .

The potential presence of PCBs and dioxin in the sediment presented concerns regarding construction of the bridge, centered on excavation of the sediment to construct the bridge foundation. These included:

• What would be the impact on the lake and the surrounding area?
• What extra expense would TDOT incur in terms of worker protection, sediment management, and disposal costs?
• Could the bridge be constructed under the Tennessee Department of Environment and Conservation General Aquatic Resources Alteration Permit?

As a result, KSWA completed a comprehensive environmental assessment to evaluate the potential impact of the existing sediment contamination. KSWA sampled and analyzed the entire thickness of sediment by advancing borings and continuously collecting samples to bedrock using a barge-mounted drill rig and handheld sampling dredges. The entire thickness of the sediment was sampled to address the potential for historic deposits of contaminated sediment that may be overlain by more recent sediment deposits since upstream industrial discharge may have been ongoing for many years prior to and after the impoundment of the Tennessee River by the Nickajack Dam.

Measurable concentrations of chlordane, 17 dioxin congeners, and eight metals were identified in the sediment samples. KSWA evaluated several models during this assessment regarding the potential for solubility and mobility of the identified contaminants. KSWA determined that the proposed construction activities should not adversely impact the environment or the construction project as long as the rate of excavation of the sediment did not exceed 1,080 ft3 per minute.

Rolling Mill Hill Redevelopment - Brownfield Site
Nashville, Tennessee
Rolling Mill Hill, once home to the old Nashville General Hospital, is located on a 34-acre site, overlooking the Cumberland River south of downtown Nashville. The property provides scenic views of downtown Nashville, as well as the Cumberland River and the Nashville Coliseum. As part of the City of Nashville 's continuing efforts to revitalize the downtown area, Rolling Mill Hill will be redeveloped as a mixed use community.

As part of the redevelopment project team, KSWA was selected to provide environmental consulting services for the demolition or re-use of the old, mothballed Nashville General Hospital facilities and the Nashville Metro Government Police Vehicle Maintenance Facilities. KSWA activities included:

• Preliminary Environmental Survey
• Phase I Environmental Site Assessment and Report
• Delineating and quantifying the asbestos containing materials and lead based paint of 15 buildings using a GIS-based system
• Developing abatement specifications for asbestos containing materials and lead based paint
• Quality Assurance Management Plan (QAMP) and Quality Assurance Project Plan (QAPP)
• Developing context sensitive abatement specifications to address hazardous materials in historically significant structures scheduled to remain on site
• Assessment of Brownfield Cleanup
• Alternatives (ABCA)
• Interim Source Removal Report
• Participating in pre-bid walk through's and information meetings with MDHA and abatement contractors
• Preparation of a work plan for a Phase II Environmental Site Assessment
• Providing oversight, owners testing, and contract administration for abatement activities.

Hazardous Materials Consulting Indefinite Delivery
Indefinite Quantity Contract
Statewide throughout Tennessee
The Tennessee Department of Transportation maintains over 17,000 miles of roadway in the State of Tennessee . New lanes are constantly being added requiring the acquisition of additional right-of-way and the potential environmental concerns associated with the newly acquired land.

KSWA is one of only four consultants (and the only small business) selected by TDOT to perform hazardous materials assessments and remediation on TDOT roadway projects. As a result, KSWA has completed numerous corridor assessments for TDOT.

The size of KSWA's roadway corridor assessments typically range between two and six miles in length and between 30 and 100 parcels per corridor. KSWA's corridor assessment and remediation activities include:

• Evaluation of current and previous land uses for areas of environmental concern.
• Subsurface soil, ground-water, and sediment contamination assessments.
• Development of corrective action plans for environmental abatement and remediation of TDOT right-of-way.
• Assessment of structures requiring demolition for hazardous building materials (i.e. asbestos, lead paint, mercury lighting, PCBs, etc.).
• Abatement of hazardous building materials.
• Closure of underground storage tanks.
• Characterization and disposal of discarded, drummed waste.
• Development of waste minimization plans during construction.

Wetlands Mitigation Monitoring,
Knoxville Utilities Board Wastewater Storage Facility
Knoxville, Tennessee
The Knoxville Utilities Board Upper First Creek Wastewater Storage facility is located adjacent to First Creek near Fountain City in north Knoxville. The facility provides a retention component in storm water management to help alleviate flooding issues within the First Creek watershed. This area is a mixture of commercial and residential properties. This facility is one of five wastewater treatment facilities that are a component of a multi-million dollar effort to improve the infrastructure within Knoxville.

The Upper First Creek Wetland Mitigation area provides compensation for 0.06 acres of wetlands that were impacted by the construction of the wastewater facility. Approximately 297 linear feet of stream were relocated and redirected into the mitigation area, and an additional 331 feet of stream was constructed within the wetland. The constructed channel contained substrate and a riffle/pool system utilizing meanders and straightened segments with constructed cross-vanes and J-hook structures to duplicate natural conditions with the stream.

In November of 2006, CH2M Hill requested that KSWA provide resident inspection services for the stream relocation and construction of the mitigation area. In addition, KSWA performed annual mitigation monitoring of the wetland in accordance with site's Department of the Army Permit as administered by the Corps of Engineers. On-site inspection occurred throughout construction of the mitigation area in February and March of 2007. Mitigation monitoring is on-going and currently addresses:

• Surface and groundwater quality within the mitigation area
• Monitoring of hydrophilic vegetation along the stream
• Investigation of hydrology and hydric soils
• A survey of benthic macroinvertebrates
• Preparation of an annual monitoring report for the Corps of Engineers

The annual monitoring report will be submitted in February of 2008, after suitable evaluation of the wetland mitigation area for one year.