A&A's experience includes both groundwater and surface water systems. Our work demonstrates our familiarity with the unique needs associated with small water systems as well as large. As a result of our work, the owners of these systems are receiving high quality water while complying with the new state and federal drinking water regulations.
Following are some of our representative projects.
Project
Location / Client
Project Description
Water Treatment
Plant Upgrade
Town of Gretna
P.O. Box 602
Gretna, VA 24557
Anderson &
Associates provided the design for an expansion to the existing surface water treatment
plant to update the capacity to 0.432 mgd. The original 0.144 mgd plant was constructed in
the 1920's. Then in 1959, the plant capacity was upgraded to .288 mgd.
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.
City of Danville
P.O. Box 3300
Danville, Virginia 24543
Design and
improvements of drop inlets, storm sewer, and urban storm drainage facilities for six
locations in the City of Danville. Responsibilities included survey, design, calculations,
plan preparation, and coordination with the city on inspection and contract
administration.
Drainage
Master Plan
Town of Warrenton
P.O. Drawer 341
Warrenton, Virginia 22186
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
Bristol Utilities
300 Lee Street
Bristol, VA 24203
Mapping and
analysis of existing water and sewer system for a five year Capital Improvement Program
consisting of major improvements in water distribution, storage facilities, the sewer
collection systems, and major infiltration/inflow problem areas.
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.
Campus-wide
Master Plan. Updated, revised, and expanded current Comprehensive Master Plan following
Virginia's Capital Outlay Manual format. Included physical planning concept development,
building programming, building placement, pedestrian movement, site context issues.
Included utility planning & extension, vehicular traffic planning, and parking for
2600 ac. campus & 1700 ac. agriculture center. Anderson & Associates inventoried
utilities, drainage systems & evaluated the impact on proposed development on those
systems. Sub to Ayers, Saint, & Gross of Baltimore, Maryland, and Sasaki Associates of
Washington, DC.
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.
Fiber Optic Building. Site work for new Fiber Electro Optics
building including utilities, parking, storm water management, and grading in Corporate
Research Center. Sub to Architects Alliance of Blacksburg, Virginia.
Research Building #7. Site grading, storm drainage, paving,
parking lots, and water and sewer extensions. Sub to Scribner, Messer, Bradley, and Wade
of Richmond, Virginia.
Weather Station and Balloon Launch Pad. Site work and
surveying.
Virginia Tech Women's Fast Pitch Softball Fields.
Realignment of Spring Road.
County-wide
Water and Sewer Studies
Lee, Montgomery,
Bedford, Alleghany, and Wythe Counties, Virginia
These county-wide
plans are funded through the appropriate planning district commission and include:
Comprehensive Water and Sewer Study, Montgomery County,
Virginia. Update of 1986 study to address existing and future water and sewer needs for 20
year planning period with report and list of priority projects countywide. Project
included an inventory of existing systems, public meetings and coordination, evaluation of
alternative solutions, identification of service areas and projects. As a part of the
study we developed a geographic information system for a county-wide water quality
improvement plan. This project involved scanning USGS quadrangle maps which served as a
base, and digitizing the existing and future water and sanitary sewer systems onto them.
Both hard copy and soft copy were provided to the client, as well as the ArcView GIS
viewing program.
Comprehensive Water and Sewer Study, Lee County, Virginia.
This master plan considered county water and sewer needs through the year 2015. Project
included a comprehensive report and a graphical representation of the County's water and
sewer system, both present and future. The mapping involved plotting of existing utilities
into AutoCAD format, adding proposed utilities to AutoCAD, overlaying AutoCAD mapping to
Raster Images on USGS quadrangle maps which served as a base, and digitizing the existing
and future water and sanitary sewer systems onto them. Both hard copy and soft copy were
provided to the client, as well as the ArcView GIS viewing program.
Comprehensive Water and Sewer Study, Bedford County, Virginia.
604B funded study to develop a 20-year long range plan to meet water and sewer needs
county-wide. Analysis of existing and projected needs throughout the county including
planning, estimating costs, mapping and scheduling of improvements.
Comprehensive Water and Sewer Study, Alleghany County,
Virginia. 604B funded study to develop a 20-year long range plan to meet water and sewer
needs county-wide.
Comprehensive Water and Sewer Study, Wythe County, Virginia.
604B funded study to develop a 20-year long range plan to meet water and sewer needs
county-wide. Analysis of existing and projected needs throughout the County including
planning, estimating costs, mapping and scheduling of improvements.
Wastewater
Treatment Plant, Bland Correctional Center
Virginia
Department of Corrections
6900 Atmore Drive, Second Floor
Richmond, VA 23225
Preparation of
preliminary engineering report to assess the need to update the water treatment system
which was constructed in the early 1950's. The PER addressed the following issues:·
the condition of the existing facilities
future water demand· groundwater availability
availability of additional water from nearby Kimberling Creek
options to repair the existing low water dam
water treatment plant options
the existing residue handling facilities
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.
Water System
Improvements, Lafayette Community, Montgomery County, Virginia. Planning, survey, design,
construction administration and inspection of 500,000 gallon tank and connecting mains.
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.
Anderson & Associates has been offering wastewater
engineering services since our founding in 1968. These jobs have included planning,
analysis, design, administration, and inspection of lines, pump stations, treatment works,
and coordination of customer services. In an effort to reduce operating costs,
A&A has also designed alternative wastewater systems such as low pressure
distribution, facultative lagoons, forest spray irrigation, aquaculture, and constructed
wetlands systems.
Following are some of our representative projects.
Projects
Client
/ Location
Project
Description
Hungry
Mother Sewer Inceptor and Collection System
Smyth County
1021 Terrace Drive
Marion, VA 24353
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
Wythe County
275 South Fourth Street
Wytheville, VA 24382
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.
Giles County School Board
Route 1, Box 52
Pearisburg, VA 24134
Giles County
designed a new elementary school to serve the eastern portion of the county. The only
stream in the vicinity large enough to accept the discharge of wastewater was Sinking
Creek. This creek was aptly named, and because it sank to become a subsurface stream, it
was not considered acceptable for the discharge of wastewater from the new school.
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.
Craig-New Castle
PSA
P.O. Box 128
New Castle, VA 24127
The small, rural
community of New Castle desperately needed a sewage system to alleviate water quality and
health problems associated with the disposal of their domestic wastes. The Town residents
could not afford a conventional collection and treatment system with average bills of
approximately $50 per month.
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
Church of Christ
Latter Day Saints
Pembroke, VA 24136
The Latter Day
Saints wanted to construct a new church/community center in the rural Virginia town of
Pembroke. The Town had no sewer system. Although the site was in the heart of town,
A&A designed a 1100 gpd subsurface, low pressure dosing system to serve the church/
community center. The system was designed to require little or no operation, or routine
maintenance. The design accommodates a wide range of flows which occur due to the variety
of activities that occur in the building. The system was used for five years before a new
public sewer system was installed in the Town. During that time, the system worked without
most people even knowing it was there.
Constructed
Wetlands Wastewater Treatment -- Henderson Store
Nelson County
P.O. Box 57
Lovingston, VA 22949
Anderson &
Associates designed a system to serve the low income residents of the Henderson Store
Community in Nelson County to alleviate this area's wastewater disposal problems. The
recommended system was a small diameter gravity collection system and a constructed
wetlands treatment system. This project uses the existing septic tanks for solids removal.
The septic tank effluent is treated using a constructed wetlands system comprised of three
shallow basins filled with graded stone. Wetland plants such as bulrushes and reeds are
planted in the stone, so their roots are exposed to the wastewater as it passes through.
These plants remove the nutrients from the wastewater prior to chlorination and discharge
into a near-by stream. This system is simple to operate and has minimal maintenance costs
which greatly benefits this rural area.
For years the
Town of Blacksburg has been monitoring sewer upgrades and making adjustments on basic
24"X36" tax maps. As the years passed and the sewer system became more complex,
the growing need for a computerized sewer mapping and modeling system was apparent. The
Town hired A&A to map and model the sanitary sewer system for incorporation into the
Town's developing GIS (Geographic
Information System).
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
Lenowisco
Planning District Commission
P.O. Box 366
Duffield, VA 24244
A&A worked
with LENOWISCO Planning District Commission planning improvements to their existing
utility mapping systems. This laid the ground work for a comprehensive Geographic
Information System for the City of Norton and the town of Wise.
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.
Anderson & Associates has provided site development for
the wireless industry since 1990. We have been involved in all phases of site development.
In just the last year, A&A has worked on over 45 wireless cellular communications
tower sites, including 3 MTSO (switch) sites. This work covered over 20 different
jurisdictions in central and western North Carolina. Using our GPS capability, A&A
also completed a 1994 audit of filed FAA coordinates for 48 tower sites throughout central
and western North Carolina in 45 days.
Anderson & Associates has provided gas design and surveying services for natural gas relocation projects through an on-call contract to Commonwealth Gas Services. Since August of 1994, we have designed numerous relocation/adjustment projects throughout Virginia dealing solely with natural gas. A&A engineers have performed planning and design services on a variety of projects including the relocation of both high and low pressure natural gas distribution systems.
Open-end Contract with Commonwealth Gas, Richmond, VA
Anderson & Associates held a two year open-end for designs related to the adjustment and relocation of utilities, specifically gas lines. Responsibilities also included the review of VDOT Road projects to determine conflicts with existing gas facilities and recommend design improvements to upgrade facilities and eliminate conflicts. Responsibilities include coordinating work on several projects with VDOT, Commonwealth Gas Services, and other utility owners in the project area. Projects include:
Harrisonburg, Virginia. Included 3300' of 8" high pressure line and 900' of 2" line.
Buena Vista, Virginia. Included 600' of 2" line and 1700' of 4" line.
Clifton Forge, Virginia. Included the relocation of 300' of 3" line.
Staunton, Virginia. Included 300' of 2" main.
Bridgewater, Virginia. Included 500' of 6" line
Waynesboro, Virginia. Design of adjustment/relocation of 1000' of 2" low pressure line. Included 1200' of 2" line.
Verona, Virginia. Design of 125' of 2" line and 1600' of 4" line.
Timberville, Virginia. Designing and coordinating the adjustment and relocation of water, sewer, and gas facilities on a bridge that is being replaced in Timberville. The bridge crosses the North Fork of the Shenandoah River. Included 400' of 4" line.
Warrenton, Virginia. Utility Relocation in an urban area which included 800' of 4" line and 2100' of 6" line and 250' of 2" line.
