The plant has several new and/or improved features including: two horizontal shaft flocculators that run in parallel, automatic switch-overs in the chlorine system, two 40,000 gallon sedimentation basins that can operate in series or in parallel, three rapid sand filters, automatic valves interlocked with chemical feeders and flocculators, variable speed rapid mixer, computerized flow recording equipment, two 1,000 gpm filter backwash pumps, two 300 gpm finished water pumps, and a baffled clearwell designed to improve the contact time in the clearwell. Filter backwash is also treated on site via a 84,000 gallon settling pond.

Water Transmission Line Design

Tasks included:

Danville Storm Drainage Improvements

Drainage Master Plan

Survey and inspection of all drainage facilities within the Town limits. Preparation of a series of 1"=100' map overlays showing all known drainage facilities. Development of a rainfall-runoff computer model, using the SWMM program to analyze the capacity and response of existing drainage facilities. Preparation of conceptual designs and cost estimates to correct identified drainage deficiencies. Coordination with Town staff to develop a Storm Water Management Ordinance. Coordination with VDOT on planned improvements on major streets.

Capital Improvement Program

Used ArcCAD/ArcView geographic information systems (GIS) for mapping the existing water and sewer system for Bristol, Virginia. Linked the capacity analysis of the sewer system interceptors to the graphical database to view dynamically in ArcView. Provided the GIS data and ArcView program to the Board of Supervisors for incorporation into other data uses.

Tasks included:

Virginia Tech

Fitness Center and Student Health Services Complex. Feasibility study and site development for new 140,800 sf multipurpose health and fitness building to include gymnasiums, activity rooms, aquatic center and playing fields. Surveying of existing utilities to make recommendations and design extensions. Storm water management plan. Modifications of current road alignments as they relate to traffic patterns. Producing a final report with recommendations which will be the basis for cost estimate and subsequent project design. Sub to Ayers, Saint, & Gross of Baltimore, Maryland.

Engineering Building and Architecture Building. Utility design for sprinkler system, sanitary sewer, steam tunnel, electric services, chilled water and storm sewer. Site layout and grading accommodating ADA access and truck traffic design. Parking lot design and layout. Pavement design for parking lot and truck access area with sidewalk design. Provided technical specification, contract administration and construction management. Sub to Hanbury, Evans, Newill, & Vlattas & Co. of Norfolk, Virginia.

Virginia Tech Airport. Site development for 8,400 sf facility and entrance road, parking lot and aircraft apron. Work includes site layout, grading, drainage, utilities, vehicular access and parking. Soil and erosion control, storm water management design, calculations, justification, and documentation. Review of the Master Plan and FAA regulations.  Sub to Worley Associates of Richmond, Virginia.

Drainage Analysis, Kent Street - Continuing Education Center. Determination of 100-year flood plain elevations at Continuing Education Center.

Water Line Testing. Hydrant testing on water lines on the campus to provide design data for line sizing of water system to library storage facility.

Storm Water Analysis. Campus-wide storm water regulation compliance.

Infrastructure Design of Virginia Tech Corporate Research Center.

County-wide Water and Sewer Studies

Wastewater Treatment Plant, Bland Correctional Center

Currently, the correctional center has two water storage tanks. A 93,500 gallon concrete tank, which was built in the early 1950's, and a 95,000 gallon steel tank built in 1986 . The existing facility has a capacity of 180,000 gallons per day.

Various Water Tank Projects

I-77 / Route 58, Commercial Park, Carroll County, Virginia. Site planning, grading, design, erosion control, surveying and contract administration for water/sewer mains. 400,000 gallon tank, coordination with VDOT on access road and construction inspection.

Water System Improvements, Fairview Industrial Park, Wytheville, Virginia. PER, hydraulic analysis, assistance with REDC (formerly FmHA) funding application, design and construction administration of water system improvements including a 2 million gallon tank, booster station, and 10,000 lf of water main to improve water service and fire protection in the Industrial park and Pine Ridge areas.

Water System Improvements, Tazewell County, Virginia. High pressure line extension including 21,00 lf water main, 500,000 gallon tank and remote electrically controls valving.

Water System Improvements, Ft. Chiswell, Wythe County, Virginia. PER, loan/grant application, hydraulic analysis, survey, design, and inspection of 10" water main, well drilling, and pump station, and 250,000 gallon tank.

Water Line Extension, Radford to Industrial Park, Montgomery County, Virginia. Along Route 177. Includes 12" water line, booster station, and a 400,000 gallon water tank in developing road corridor area.

Water Transmission Line, Elliston to Christiansburg, Montgomery County, Virginia. Survey, design, and inspection of seven miles (42,000 lf ) water line of 10" water transmission main, 300,000 gallon tank, booster station; PRV stations, 100 service connections.

Alleghany Commerce Center, Low Moor, Virginia. Final design of for new commerce center, including water distribution lines and 600,000 gallon water tank, sewer lines, and sewage pump station, and roadway.

Water System Improvements, Big Survey, Wythe County, Virginia. Phase I: PER, Rural Economic Development Commission Application. Phase II: design, survey, construction administration, and inspection of 16,000 lf of 8" and 6" water main, 200,000 gallon tank, pump station, well and well house.

Water System Improvements, Narrows, Virginia. Preliminary Engineering Report including hydraulic analysis, survey, design, contract administration, inspection. Four contracts including two 500,000 gallon tanks, well, well house and water main replacement.

Hungry Mother Sewer Inceptor and Collection System

The project involves the installation of approximately 24,300 lf of sewer interceptor along Hungry Mother Creek. In addition to serving the needs of the nearby State park, approximately 350 households will be served by an estimated 42,900 lf of proposed collector lines. A walking and bike trail will be developed with ISTEA funding along the sewer interceptor route. The trail will connect Hungry Mother State Park with the Riverwalk Trail in the Town of Marion.

Anderson & Associates completed the preliminary engineering report and assisted with the successful funding application for the planning phase of this project with funding provided by Community Development Block Grant and Rural Economic Community Development.

This project is currently under construction phase of this project. A&A is providing engineering and surveying services including design, construction administration, inspection services and easements for the Hungry Mother Creek Sewer.

Ft. Chiswell - Max Meadows Wastewater Facilities

Funding applications, planning, survey, design, and construction inspection of $9.1 million project. Included preliminary engineering, design, construction administration, and inspection for wastewater collection and treatment system for the eastern past of Wythe County along the I-77/I-81 corridor area, including communities of Max Meadows and Fort Chiswell. The project consists of a 500,000 gallon per day wastewater treatment plant and three sewage pump stations. This system created opportunities for businesses to move into the area, increasing economic development in the eastern section of the County.

Tasks included:

Anderson & Associates designed an onsite wastewater disposal system which did not require a discharge. Work included the surveying, design, and inspection of a 8000 gpd subsurface low pressure dosing system to serve the school. The system was designed to operate in poor soils, previously considered unusable. The system was the first of its kind in western Virginia, and has operated for years with very little operation or maintenance required.

Wastewater Aquaculture System

An innovative small diameter gravity collection system transports effluent from individual septic tanks to the new treatment facility. The treatment system designed by Anderson and Associates involved using aquaculture in conjunction with facultative stabilization ponds. The system includes an innovative, multi-stage lagoon system using fish as a part of the treatment system. Septic tank effluent is treated in the ponds by algae and other microorganisms which later serve as food for filter feeding fish.

Due to extensive reliance on natural systems, the New Castle plant uses less than 20 percent of the energy consumed by a conventional wastewater treatment facility of equal capacity. This results in a significant savings to the New Castle customers. On a daily basis the system runs almost unattended. With little mechanical equipment, maintenance is minimal. The flexible design allows the system to operate for weeks between discharging.

This project was the first of its kind in Virginia and is used as a model for the affordable small systems by the Virginia Department of Health. The innovative nature of the project brought about additional funding through EPA's Innovative/Alternative Design Program, thus reducing annual debt service.

Low Pressure Dosing System -- Latter Day Saints Church

Constructed Wetlands Wastewater Treatment -- Henderson Store

GPS Survey Sewer Locations

The first step in the plan was surveying manhole sites (about 750) around the Town using GPS (Global Positioning Systems) and conventional surveying. A&A located approximately 1/3 of the manholes and the remainder of the manholes we digitized from sewer mapping. The second step was to inspect the manholes to determine flow capacity, elevation, pipe materials, and other information pertaining to a given area. Field data was collected using a hand held computer. After the implementation of the GIS, a user will be able to click on a specific point in the mapping and pull up a data base of information including condition and available capacity of a specific sewer line.

The interactive computer model of the sanitary sewer system allows the Town to monitor capacity, in order to eliminate infiltration, and will serve as a planning mechanism for future development in the area.

Mapping and GIS Development

Using aerial photogrammetry, the base mapping of the GIS shows data such as building, roads, streams, etc. Additional data was layered into this base mapping from a variety of sources, including existing utility mapping, zoning maps, flood zone mapping, and census data.

The project included review of existing computers, data and procedures with emphases on tax mapping and tax records, coordination/education meetings with the County, and development of an implementation plan for computerized tax mapping and record systems.