Following are brief descriptions of some projects that Chastain-Skillman's Environmental Engineering team has worked on. This is by no means an exhaustive list, but should
give you an idea of the scope of work that we have done.
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 Sandhill Water Reclamation Facility (2005)
Kissimmee, Florida
In Kissimmee, Chastain-Skillman has engineered the expansion and retrofit of this water reclamation facility. Significant changes in the layout of the facility were necessitated by the expansion of a nearby major roadway which required demolition of portions of the facility as the land on which the facility was positioned was taken for roadway construction. The total value of this project including owner purchased equipment is approximately $18 million. Ultimately becoming a 6MGD facility, it will include such new capabilities as UV disinfection and effluent pumping, and waste activated sludge storage and pumping.
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 Blacks Ford WRF (2004)
St Johns County, Florida
Chastain-Skillman performed an evaluation for JEA regarding the expansion of the Blacks Ford WRF. The purpose was to review the various treatment processes available to cost effectively increase the plant treatment capacity from 1.5 mgd to 5.0 mgd.
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 Tenoroc Fish Management Area Effluent Reuse/Wetland Improvement Project (2003)
Auburndale, Florida
The Tenoroc Fish Management Area consists of 6,040 acres of abandoned and partially reclaimed phosphate mine. In order to create appropriate wetland habitat, the Tenoroc Wetland Improvement Project needed a source of water to rehydrate the wetlands. The City of Auburndale recently completed its Regional Wastewater Treatment Plant (RWTP), which is located adjacent to the Tenoroc Fish Management Area. The plant capacity was limited by the need for more capacity for effluent disposal.
Chastain-Skillman's ERM Hydrogeologists were retained to determine the feasibility of spraying treated effluent from the RWTP onto a portion of the Tenoroc Property adjacent to a wetland area. The project needed to determine the quantity of water that would cause the effluent to infiltrate into the ground-water system, cause seepage of the ground water into the adjacent wetland, and rehydrate that wetland while adhering to all regulatory limitations regarding no overland flow of the effluent.
In order to perform a reasonable analysis, Chastain-Skillman performed a geologic and hydrogeologic investigation of the property proposed for the spray irrigation. The investigation included the installation of monitor wells, double-ring infiltrometer testing to determine the permeability of the unsaturated zone, slug-testing, ground-water quality sampling of the monitor wells, ground-water elevation monitoring over a period of six months, as well as consideration of anticipated typical rainfall amounts. The appropriate quantity of water to be sprayed on the site was then determined through a ground-water mounding analysis.
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 Highlands Solid Waste Management Center (2001)
Highlands County, Florida
Chastain Skillman was retained by the Highlands County Solid Waste Department to design an expansion and upgrade to the existing leachate sprayfield at its Class 1 Landfill. Because of planned expansions at the facility, the landfill needed additional area for disposal of its leachate.
The landfill leachate recirculation system, in conjunction with its leachate wastewater treatment system, transports liquid captured from the solid waste matrix. This liquid leachate is disposed of by means of controlled land application to an existing sprayfield. While the existing sprayfield encompassed 15 acres, the expansion provided an additional 17 acres of disposal area. This additional capacity will allow the County to move forward with improvements to and expansion of the leachate wastewater treatment plant.
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 Leesburg Wastewater Treatment Plant (2000)
Leesburg, Florida
With the existing treatment facility nearing 100% capacity, the City was in need of new treatment capacity in as timely a manner as possible. Chastain-Skillman was retained to design a new 3.0 MGD plant, to be located at the site of the City’s existing sprayfield near the Florida Turnpike. Bids were received and were under budget. Completed in November 2000, this is the fourth Sequencing Batch Reactor (SBR) facility designed by Chastain-Skillman in Florida. A unique project characteristic was the extra attention paid to the potential archeological value of the construction site, as numerous American Indian artifacts have been discovered in and around the area.
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 Glendale Wastewater Reclamation Facility (1999)
Lakeland, Florida
Completed in 1999, the project encompassed plant modifications and expansions to convert an existing 10.8 MGD trickling filter / activated sludge facility with mechanical aeration to a 13.7 MGD activated sludge facility operation in the modified Ludzack-Ettinger (MLE) mode.
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 Sun-Ray Wastewater Treatment Plant (1999)
Frostproof, Florida
Chastain-Skillman provided engineering and permitting services for construction of a 0.4 MGD wastewater treatment plant. Upon completion, the facility was turned over to Polk County Utilities and replaces an existing Imhoff tank treatment plant. Services provided by Chastain-Skillman included hydrogeological evaluation, permitting, structural engineering, and design review. The first phase of the project consisted of a 0.2 MGD ring steel contact stabilization plan with a second external clarifier to meet reliability requirements. The construction of the first phase was completed in 1997. The second phase was constructed in conjunction with a new county jail, and included another 0.2 MGD treatment facility, for the total capacity of 0.4 MGD. The construction of the second phase was completed in May 1999.
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 I-4 Rest Area Utilities (1996)
Auburndale, Florida
As part of the construction of new rest areas on I-4, the Florida Department of Transportation approached the City of Auburndale about providing utility service. The City of Auburndale agreed to extend its service lines over three miles to serve the facilities. The construction to serve the area included three miles of 6-inch force main and over three miles of 12-inch, 10-inch, and 8-inch water line. A master lift station, including a standby generator, was also included. To minimize time and construction costs, the project was bid as two separate contracts. Design and construction were further complicated by the interstate right-of-way and by large wetland areas.
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