Metcalf & Eddy405 Howard Street, Suite 400, San Francisco, California 94105T 415.986.1373 F 415.986.4886 www.m-e.aecom.com

July 24, 2006

Ms. Jill Bicknell EOA, Inc.Assistant Program ManagerSanta Clara Urban Runoff Pollution Prevention Program699 Town & County Village Sunnyvale, California 94086

Dear Ms. Bicknell:

Metcalf & Eddy is pleased to provide these qualifications to design, review, and/or certify proposed stormwatertreatment control best management practices and hydromodification flow control facilities for new andredevelopment projects. As one of the lead consultants providing Caltrans with on-call stormwater managementservices for transportation facilities throughout the state, M&E offers SCVURPPP several major advantages:

A team of skilled local talent backed by national expertise. M&E’s key personnel have been carefullyselected to provide the SCVURPPP with its best local and national talent available to successfully completeany task assignment within the Bay Area’s communities. Our team includes project managers, engineers,support staff, and senior advisors who have worked on several Caltrans task orders and on other stormwatermanagement projects in California and nationwide. The majority of our key personnel are registeredprofessional engineers in California.

Comprehensive stormwater management experience. Metcalf & Eddy has been involved in wet weatherpolicy and technology since the inception of this field in the early 1970s, and has managed some of the largestwet weather programs in the country. In addition to Caltrans, clients that have worked with M&E as their program manager or lead consultant include the San Francisco Public Utilities Commission, MassachusettsWater Resources Authority (Boston), Northeast Ohio Regional Sewer District (Cleveland), Baltimore,Pittsburgh, Atlanta, and St. Louis . Their projects have involved extensive wet weather technical tasks including modeling and integration of best management practices; many involved the design of stormwaterfacilities.

A realistic understanding of the issues facing SCVURPPP. The goal of this program is to improve the water quality of South San Francisco Bay and the streams of the Santa Clara Valley. The challenge is how tobetter handle storing, treating, and monitoring the stormwater runoff from new developments without upgradinglocal drainage infrastructure or sanitary sewer facilities. M&E understands the need to design new solutionsthat protect groundwater and surface water while addressing the economics of development, and is committedto working closely with the responsible agency to find solutions that are attainable, compliant, and cost effective.

The enclosed submittal provides further details about M&E’s qualifications and understanding of the servicesrequired. If, following your review, you need further information, please contact Tim Ormond, our senior projectengineer and project manager, at his direct line, 415-365-3269. M&E is strongly interested in applying its knowledge and expertise on the proposed assignments for the SCVURPPP, and looks forward to the opportunity to assist with this important effort.

Very truly yours,

Ashok DhingraPrincipal

Contents

Section 1 Firm and contact information

Section 2 Principals and key personnel

Section 3 Understanding of required services

Section 4 Relevant experience

Section 5 Statement of interest, availability, andcommitment

Appendix Proof of training

Section 1 Firm and contact information

The following is Metcalf & Eddy’s firm and contact information required for inclusion on the SCVURPPP’s list to provide services for the design or review of proposed stormwatertreatment control best management practices and hydromodification flow control facilities.

Firm informationLocal office

Metcalf & Eddy 405 Howard Street, Suite 400 San Francisco, CA 94105Phone: 415-986-1373

Headquarters

Metcalf & Eddy 701 Edgewater Drive Wakefield, MA 01880-5371Phone: 781-246-5200

Year firm established

1907

Primary contact person Mr. Timothy Ormond, Senior Project Engineer / Project ManagerPhone: 415-365-3269

Section 2 Principals and key personnel

Metcalf & Eddy’s key personnel have been carefully selected to provide the SCVURPPP withits best local and national talent and the stormwater management experience to successfullycomplete task assignments within the Bay Area’s schedules and budgets. Mr. Ash Dhingrawill serve as M&E’s principal-in-charge for all task assignments, working with the project managers and overseeing progress, schedule, budget, and overall client satisfaction.

The following matrix summarizes the project team’s capabilities in stormwater management.As this table shows, M&E has key staff available in each of the following categories: projectmanagers, project engineers, support staff, and technical advisors. Specific teams will be assembled from staff in these categories based on the needs of a particular project.

Key Personnel

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Ashok Dhingra, Principal X X X X

Project Managers

Timothy Ormond X X X X X X X X X X X

James Sullivan X X X X X X X X X X X

Gary Friedman X X X X X X X X X

Manjit Saini X X X X X X X X X

Project Engineers

Daniel Peterson X X X X X X X X X X

Scott Durbin X X X X X X X X X

Mohammed Ibrahim X X X X X X X

Chris Brothers X X X X X X X

Support Staff

Lawrence Soucie X X X X X X X

Mary Cate Opila X X X X X X X

Principals and key personnel 2

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Megha Bansal X X X X X X X EIT

Uday Khambhammettu X X X X

Technical Advisors

Bruce Engerholm X X X X X X X X

David Bingham X X X X X X X X X X

Dominique Brocard X X X X X X X X X

Daniel Donahue X X X X X X X X

Resumes for each of the staff named in the table conclude this section. Proof of training for key staff is provided in the appendix.

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Ashok K. Dhingra Principal

EducationMS, Environmental Engineering,

Loyola University, 1973 MS, Structural Engineering,

California State University, 1970 BS, Civil Engineering, PanjabUniversity, Chandigarh, India,

1968Coursework, Engineering

Management Program, CaliforniaInstitute of Technology, Pasadena

RegistrationsRegistered Professional Engineer

(Civil), California Registered Professional Engineer

(Structural), California, Massachusetts

Professional associationsAmerican Concrete Institute

American Public Works Association

American Water WorksAssociation

East San Gabriel Valley PlanningCommittee

American Concrete InstituteCommittee 350 - Environmental

Engineering Concrete StructuresAmerican Concrete Institute

Committee 372 - CircularPrestressed Concrete Structures

American Concrete InstituteCommittee 364 - Rehabilitation of

Concrete StructuresAWWA Committee on

WaterproofingAWWA Committee on DesaltingPlanning Commissioner, City of

San Dimas, California (Chairmansince 1994)

Mr. Dhingra is a technical leader with more than 35 years of experience in the planning and management of environmental projects ranging from the designand construction administration of various hydraulic structures, to watertreatment and water supply studies, to water reclamation master plans, studies,and designs. His responsibilities have included preparing economic analyses,cost studies for different framing systems, analyses of materials alternatives, and preliminary design reports for numerous building, reservoir, pipeline, and pumping station projects. Mr. Dhingra has managed the design and constructionadministration of more than 70 concrete reservoirs, more than 20 steel tanks, and several rehabilitation projects. He also has developed a computerapplications section for a structural design manual and has provided quality assurance/quality control oversight of major water and wastewater projects.

Experience

Served as principal-in-charge for the technical control and direction of the 15-mgd anion exchange facility for nitrate removal for Pomona, California.

Served as principal-in-charge or project manager for water master plans and water supply studies for the cities of Burbank, Riverside, Pomona, Azusa,Corona, Westminster, and Upland, California, and for the Eastern MunicipalWater District and the Rubio Canyon Land and Water Association.

Managed the nitrate removal feasibility study for the city of Chino, California.

Served as project director for the preparation of an engineer’s report for bond issues for the cities of Riverside and Upland, California. Also participated in institutional studies for the organizational structure of the water departments.

Served as project director for the water reclamation study and expansiondesign for Burbank, California.

Served as project director for value engineering studies of the 62.5-mgdgroundwater treatment plant for the Long Beach Water Department inCalifornia.

Directed the conceptual and preliminary design and constructionmanagement of a 75-mgd water treatment plant for the Long Beach WaterDepartment in California.

Directed the design of 3-mgd granular activated carbon water treatmentplant for Burbank, California.

Served as a member of the value engineering team for the Diemer plant south area stabilization project for the Metropolitan Water District of Southern California.

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Served as principal investigator for the evaluation and analysis of a structural failure at a 5-million-gallon precast, prestressed reservoir in Westminster, California.

Managed and served as structural engineer for a peer review of the two 30-million-gallon prestressed concrete Toyon tanks as part of the Hollywood water quality improvement project for the Los Angeles Department of Water and Power. Also provided bid analysis services and construction support.

Designed pumping stations, including vertical turbine pumps and horizontal split-case pumps with electric- and natural-gas-driven motors, for the cities of Torrance, Riverside, Whittier, Beverly Hills, Westminster, and Corona, California, and for the Orange County Water District, Contra Costa Water District, and Yorba Linda Water District.

Served as project director for Phase A of the reclaimed water system expansion for the city of Burbank, California, which involved the design of 17,000 linear feet of 16-inch ductile iron transmission pipelines.

Designed 6,100 feet of 16-inch diameter transmission pipeline for the city of Montebello, California.

Designed the 66-inch transmission main through the city of Orange, California, as part of the Santiago Creek replenishment program.

Designed 4,900 linear feet of 72-inch-diameter and 120 linear feet of 48-inch-diameter cement-mortar-lined-and-coated welded steel for the Anaheim Lake Phase II pipeline for the Orange County Water District in California.

Managed the design of reservoirs ranging in capacity from 1 million gallons to 50 million gallons with circular, rectangular, or square shapes and various roof framing systems for the cities of Torrance, Riverside, Montebello, Upland, Corona, Westminster, Santa Maria, and Anaheim, California, and for the Las Vegas Valley Water District, Yorba Linda Water District, Contra Costa Water District, San Diego County Water Authority, and Irvine Ranch Water District. Also managed the design and rehabilitation of steel tanks ranging in size from 1 million gallons to 50 million gallons using various coating systems.

Directed the development of a water reclamation master plan for Torrance, California.

Conducted structural and seismic studies to verify conformance to seismic design criteria of reservoirs for the cities of Arcadia, Santa Maria, Huntington Beach, San Buenaventura, and Monterey Park, California, and for California State Polytechnic University, Pomona.

Conducted a seismic and structural analysis for a water system for a jet propulsion laboratory and for the Foothill Municipal Water District in southern California.

Served as project director or project manager for reservoir rehabilitation projects throughout California including the Linden Reservoir in Riverside, Kewen Reservoir in Alhambra, Foothill Reservoir No. 4 in San Fernando, Reservoir No. 2 at Cal Poly in Pomona, Walteria Reservoir in Torrance, and Helix No. 2 tank for the Helix Water District in La Mesa.

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Timothy Ormond Project Manager

EducationMS, Civil Engineering, Texas A&M

University, 1993BS, Civil Engineering, Worcester

Polytechnic Institute, 1991HEC-RAS for Experienced HEC-2

Users, University of Texas atAustin, 1997

RegistrationsRegistered Professional Engineer(Civil), California, Massachusetts,

Texas

Professional associationsTexas Floodplain Management

Association

Mr. Ormond is a senior project engineer with more than 12 years of experiencein the field of water resources and environmental planning and engineering.His experience includes stormwater management; hydrologic and hydraulicmodeling, analysis, and design; flood control and floodplain management plans;flood insurance studies; drainage master plans; water supply planning studies;water distribution system analysis and design; CSO planning and analysis; wet-weather sampling and monitoring studies; and economic studies. He isproficient in specialized computer applications such as HEC-HMS, HEC-1,HEC-RAS, HEC-FDA (Flood Damage Analysis), SWMM, KYPIPE, ArcViewGIS, and Microsoft Access.

Experience

Serving as senior project engineer for the $10.3 million on-call stormwatertechnical assistance planning and design contract for the CaliforniaDepartment of Transportation's overall stormwater management program, which is required by its National Pollutant Discharge Elimination System permit. Conducted a siting study, provided hydrologic and hydraulicanalyses, and provided design and prepared a PS&E package for best management practices for a pilot study for stormwater media filters on state route 267 in the Lake Tahoe basin. Conducted computer modeling using Caltrans IDF procedures and the HydroCAD stormwater modeling system.Designed media filters including sedimentation chambers, filter beds, inflow and outflow monitoring flumes, underdrain systems, overflow spillways, outlet control valves, and a low-flow channel diversion. Prepared a preliminarydesign memorandum, basis of design report, and a stormwater data report.Participated in the design of four pilot chemically enhanced detention basinsites, including detention basins, chemical dosing and mixing systems, inflow and outflow monitoring flumes, basin overflows, and access roads.

Conducted and managed all aspects of the hydrologic and hydraulicanalysis and design of four pilot media filter sites along SR 267 in the LakeTahoe basin of California. Performed computer modeling using CaltransIDF procedures and the HydroCAD stormwater modeling system.Designed sedimentation chambers, filter beds, inflow and outflow monitoring flumes, underdrain systems, overflow spillways, outlet control valves, and a low-flow channel diversion.

Serving as deputy project manager for the development of a collectionsystem master plan for the San Francisco Public Utilities Commission in California, which involves hydraulic modeling, sewer system assessment,development and analysis of alternatives, and preparation of the master plan.

Developed monitoring plans for Phase II of the Massachusetts WaterResources Authority's combined sewer overflow program to quantify CSOs and to support the calibration of MWRA's collection system model in the cities of Boston, Cambridge, Chelsea, Medford, and Somerville,

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Massachusetts. Coordinated a monitoring program with the client and a metering subcontractor and supervised installation of flow meters.

Performed engineering analyses in support of the long-term combined sewer overflow control plan for North Dorchester Bay and the Reserved Channel in South Boston for the Massachusetts Water Resources Authority.

Managed and conducted wet-weather combined sewer overflow and receiving water sampling activities for the Charles River and the Cottage Farm CSO facility as part of the Massachusetts Water ResourcesAuthority's CSO program. Coordinated the sampling program with the client, the laboratory, and boat captains. Coordinated development of sampling protocols and analysis of sampling data.

Conducted a broad range of engineering analyses related to the Cottage Farm wet weather combined sewer overflow facility assessment for the Massachusetts Water Resources Authority, including performance evaluation of the facility, evaluation of system optimization measures, identification and evaluation of CSO control alternatives, including storage tanks and conduits, and development of the recommended plan for CSO control in the lower Charles River basin.

Performed engineering analyses for the final long-term combined sewer overflow control plan and environmental impact report for the proposed Chicopee River CSO control facility for the Springfield Water and Sewer Commission in Massachusetts. Identified and evaluated a range of CSO control alternatives and prepared notice of project change documents.

Designed a stormwater detention system for the Copperfield subdivision of Houston, Texas. Conducted hydraulic analyses using HEC computer models to determine the excavation requirements for an outfall channel. Developed the optimum design for the detention basin, including a sheet-pile saw-tooth drop structure, a 100-foot-wide structural concrete and slope-paved weir, and a 38-acre-foot detention basin.

Conducted and coordinated XP-SWMM modeling studies of six watersheds, ranging from 60 to 700 acres, to make recommendations for storm drainage criteria as part of the development of a comprehensive drainage plan for the city of Houston, Texas. Developed storm drain system alternatives for each watershed to convey the 2-, 3-, 5-, and 10-year storm flows. Generated stage-damage curves for typical residential conditions and used them in conjunction with ponding depths from the XP-SWMM model to compute annual expected damages for each system alternative. Determined benefit-cost ratios and used the results to make recommendations for optimum drainage criteria. Coordinated the modeling effort with two subcontractor firms by developing plans of action and compiling and interpreting all results.

Conducted a preliminary flood plain analysis and developed a stormwater management plan, including the preliminary design of a series of stormwater detention basins, for the Berry Creek watershed in Williamson County, Texas.

Conducted a detailed hydrologic and hydraulic analysis of the 83-square-mile watershed of Berry and Cowan Creeks, in the vicinity of the proposed 5,300-acre Sun City development, to better define existing conditions in the watershed and to establish new baseline conditions. Performed new HEC-

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1 analysis to derive hydrograph peaks that were substantially lower than effective peak flows but in agreement with existing USGS gage data. Developed a 29-mile-reach HEC-2 model of Berry Creek and its tributaries and used water surfaces to delineate new 100- and 500-year flood plains and floodways and to request changes in the effective floodplain.

Designed a stormwater control system consisting of three interconnected detention basins at the Fuqua Metro Park-and-Ride site in Houston, Texas.

Developed XP-SWMM models of a proposed storm sewer system for the Lynnwood/Oakwood residential subdivision in Sugar Land, Texas, which has an existing roadside ditch drainage system. Proposed a drainage system that included diversion to a different watershed since the existing drainage outfall ditch had inadequate capacity. Modeled six alternatives for the 100-year storm event to ensure acceptable ponding levels within the subdivision. Made a final recommendation, which was subsequently approved by the Texas Department of Transportation and included an outfall detention ditch and interconnect with a DOT drainage system.

Conducted hydrologic and hydraulic analyses necessary to update the drainage master plan for the 7,000-acre George Bush Intercontinental Airport in Houston, Texas. Developed HEC-1 models to reflect base, existing, and ultimate development conditions and created a photo-based GIS in ArcInfo to accurately evaluate land use using digital aerial photography. Computed required detention storage on a subwatershed basis and developed a method for implementing detention based on phasing of development at the airport.

Performed a drainage investigation of a predominantly industrial area that experiences frequent flooding in the vicinity of Eureka Railroad Yard in Houston, Texas. Evaluated the capacity of Eureka Ditch, a tributary of White Oak Bayou; analyzed storm sewer systems and roadside ditch systems; conducted site visits during rainfall events; interviewed tenants; and conducted field surveys. Recommended improvements including enlarging an outfall ditch and constructing a relief storm sewer to prevent public drainage from entering private property.

Conducted a preliminary drainage investigation on the proposed 1,370-acre Lake Houston development tract in the Williams Gully watershed in Houston. Developed revised HEC-1 models based on previous studies and more detailed topography. Computed detention requirements and developed HEC-2 models for existing, full development, and proposed development conditions, providing linear detention through the use of weirs. Proposed a subregional mitigation plan consisting of 300-acre-feet of linear detention in Williams Gully, regional detention, and on-site detention, which was subsequently adopted by the Harris County Flood Control District.

Participated in a hydraulics study of the Wadsworth interchange on interstate highway 76 in Denver, Colorado.

Participated in a hydraulic analysis of the Colorado River in Wharton, Texas.

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James F. Sullivan Project Manager

EducationMS, Environmental Engineering,

University of Massachusetts,Lowell, 1999

BS, Civil Engineering, University of Massachusetts, Lowell, 1994

RegistrationsRegistered Professional Engineer(Civil), California, Massachusetts

Professional associationsAmerican Society of Civil

EngineersAmerican Water Works

AssociationCalifornia Water Environment

AssociationWater Environment Federation

California Stormwater QualityAssociation

Mr. Sullivan is a project manager with considerable experience in facilitiesplanning, conceptual design, final design, and construction management of municipal, environmental, and civil engineering projects. He has designedstormwater and wastewater pumping stations ranging in size from 50 gpm to 52 mgd and water and wastewater pipelines ranging in size from 1 1/2-inch, low-pressure sewers to 144-inch potable water transmission mains. Throughout his career, he has been directly involved in the design and construction of potable water systems, wastewater treatment and collection systems, stormwatermanagement systems, and combined and sanitary sewer overflow controlsystems. Mr. Sullivan is a member of M&E’s wet-weather control group, whichis recognized worldwide as a leader in water quality engineering.

Experience

Serving as lead project manager for two statewide California Department of Transportation contracts providing on-call stormwater technical assistanceservices for the planning and design of highways, which span five years, total more than $31 million, and support Caltrans' overall stormwatermanagement program, as required by its NPDES permit. Managing the development of guidance materials related to water quality, developing training material on stormwater practices, and conducting studies toevaluate new best management practices.

Managing a task order under the Caltrans contract to develop standardguidelines, including standard plans and guidance manuals, for all of Caltrans' approved best management practices, including infiltrationdevices, detention devices, biofiltration, dry weather flow diversions,traction sand traps, media filters, multi-chambered treatment trains, wet basins, and gross solid removal devices.

Served as task order manager for the design and pilot testing of newstormwater treatment technologies such as media filters, gross solidsremoval devices, and chemically enhanced extended detention basins,under the Caltrans contract.

Managing the development and implementation of statewide training on Caltrans procedures to comply with its NPDES permit on a project-by-project basis.

Managed the design of a 52-mgd stormwater pump station and a 250-gpmsanitary sewer lift station and associated force mains as part of the drainage system for the Pier S marine terminal container yard project for the Port of Long Beach, California. Performed hydraulic analysis and developed mechanical, instrumentation, and control design.

Developed and conducted training on NPDES Phase II best managementpractices for the U.S. EPA, as a train-the-trainer course given to EPA staffand five Midwestern states to assist with compliance with the EPA's Storm

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Water Phase II (Small MS4) Rule. Included modules on construction site run-off control and post-construction run-off control.

Managing the design of a submersible stormwater pump station as part of the drainage system for the Pier S fill and rail relocation project for Caltrans, which is sized for 585 gpm at a total dynamic head of 24 feet with two submersible solids handling pumps. Performed hydraulic, instrumentation, and control design.

Served as assistant consultant task order manager for the Caltrans stormwater best management practices retrofit pilot program. Performed operations, maintenance, and vector control, and provided design guidance for Caltrans stormwater treatment BMPs in southern California, which included extended detention basins, bio-swales, bio-strips, media filters, and constructed wetlands.

Prepared a stormwater pollution prevention plan for the Eastern/Foothillcorridor landscape enhancement project in Irvine, California. Prepared water pollution control drawings and specified best management practices to control stormwater pollution during construction.

Prepared a stormwater pollution prevention plan for the Regional Fire Operations and Training Center for the Orange County Fire Authority. Prepared water pollution control drawings and specified BMPs to control stormwater pollution during construction.

Provided design review for stormwater management of the Route 3 North transportation improvement project, the largest design-build project in Massachusetts, which included 21 miles of road widening with a travel lane and two 10-foot shoulders in each direction and the replacement of 47 bridges. Reviewed design documents for compliance with design standards, Massachusetts Department of Environmental Protection’s stormwater management policy, and the EPA's NPDES regulations for stormwater management.

Provided the Massachusetts Highway Department with a stormwater management plan for a 32-acre stockpile and materials handling facility associated with the Route 3 construction work. Coordinated hydrologic and hydraulic modeling, grading, drainage design, and stormwater controls.

Designed temporary and permanent stormwater controls for the Norumbega design-build project, a 115-million-gallon covered water storage reservoir for the Massachusetts Water Resources Authority. Designed a 14,000-square-foot infiltration gallery to duplicate existing groundwater recharge for construction and post-construction conditions. Performed hydrologic and hydraulic modeling, interim grading, roadway layout, drainage design and stormwater controls consistent with Massachusetts DEP’s stormwater management policy and the U.S. EPA's Phase I stormwater requirements.

Developed conceptual stormwater management design and treatment best management practices design for the construction of a new correction facility in Berkshire County, Massachusetts.

Developed conceptual design of sewer separation and stormwater management for the Acre Neighborhood Urban Renewal Plan in Lowell, Massachusetts.

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Gary Friedman Project Manager

EducationMS, Chemical Engineering,

Michigan Technological University,1984

BS, Chemical Engineering,Michigan Technological University,

1983

Professional associationsAmerican Public Works

AssociationAmerican Institute of Chemical

EngineersProject Management Institute

Mr. Friedman is a project manager with 20 years of experience providingenvironmental engineering and stormwater management services. He hasserved as project manager on large stormwater, wastewater, water quality, water resources, and infrastructure management projects, many in southernCalifornia. Mr. Friedman has also served as project manager on largeinternational projects in Mexico and Australia.

Experience

Serving as a technical leader for the $10.3 million on-call stormwatertechnical assistance planning and design contract for the CaliforniaDepartment of Transportation's overall stormwater management program, which is required by its National Pollutant Discharge Elimination System permit. Serving as assistant manager for multiple task orders, including the Route 73 pilot best management practices; development of a work plan for treatment BMPs; a selenium treatment alternatives study for Route 261; Phase 4 of a full-scale BMP pilot study; siting of chemically enhanceddetention basins; and a Caltrans water quality assessment guidancedocument. Providing scopes, budgets and schedules, subconsultantcoordination, and monthly progress reports.

Managed a retrofit pilot program to evaluate stormwater best managementpractices for the California Department of Transportation in Los Angeles,California. Oversaw the planning, direction, and oversight of the program, which involved the design, construction management, operations andmaintenance, and monitoring of 17 pilot facilities to handle runoff from roadways and facilities. Managed subconsultants, quality control, budgetsand schedules, and review of all deliverables for 12 task orders rangingfrom $30,000 to more than $1,000,000.

Served as project manager for stormwater treatment engineering anddesign services to the North County Transit Development Board for the Sprinter rail project in California. Managed a feasibility study to determineappropriate BMP locations and sizes for the already-designed stations,development of preliminary cost estimates, and detailed engineering and design of the bioretention cells at each station.

Provided program management of the Route 73 CSF retrofit program in which the California Department of Transportation is replacing 38 compoststormwater filter treatment units along the San Joaquin Hills transportationcorridor with alternative treatment systems to respond to a cease anddesist order from the San Diego Regional Water Quality Control Board.Assisted with the overall coordination of the program, including plans and specifications prepared by six consultants, project study reports, project reports, and traffic management plans, and quarterly status reports for the regional water quality control board. Developed design directives used by all consultants; assisted in selecting best management practices; provided peer review of consultant-prepared plan, specification, and estimate

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packages; coordinated tri-weekly project status reports and status meetings; and provided bid phase and construction phase oversight.

Managed a three-phase pilot study of gross solids removal devices across the state for the California Department of Transportation. Evaluated the effectiveness of different devices for removing litter and debris from Caltrans facility runoff. Managed site selection, engineering, design, construction, and monitoring activities for six devices in the Los Angeles River watershed. Oversaw site selection, engineering, and design of two large footprint inclined bar rack units in the Ballona Creek watershed. Directed the development of conceptual designs and 3-D renderings of five new devices.

Provided technical lead for permits and agency coordination for the San Vicente pipeline in San Diego County, California. Incorporated all required environmental mitigation measures into the plans and specifications for the 102-inch pipeline. Identified, coordinated, and secured acquisition of all necessary design permits and regulatory reviews for the project.

Served as project manager for the development of contract solicitation documents for the design-build of a 7-million-gallon municipal wet-weather storage facility in San Diego, California, to ensure that future wet-weather flows would not exceed the capacity of the pump station and overflow into the San Diego River. Performed preliminary engineering, geotechnical analyses, hydraulic analyses, and preparation of 30 percent plans, specs, and cost estimates for the design-build contract, which included a self-cleaning tank, conveyance pipelines, a pump station, and odor control facilities.

Managed the development of water, wastewater, and recycled-water master planning documents for Padre Dam Municipal Water District’s integrated water and wastewater facilities plan in California, focusing on the preparation of a comprehensive capital facility improvement and finance plan. Developed water and wastewater demand projections for future planning horizons, identified potential water supply sources, analyzed the hydraulics of the existing wastewater collection and reclaimed-water systems, analyzed the energy efficiency of pump stations, and evaluated a maintenance and replacement analysis of a a major facility.

Managed a study of the Bonair watershed the city of San Diego, California, to identify cross connections between the sanitary sewer system and the storm drain system. Oversaw a preliminary analysis of possible cross connection points, background surrogate sampling, dye tracer studies, and a closed circuit television analysis to confirm probable cross contamination points.

Served as project manager for the water infrastructure mapping and GIS development for Nogales, Sonora, Mexico, for the North American Development Bank. Managed a physical inspection of the municipal water system infrastructure. Oversaw the development of a GIS system to manage both the water and sewer systems, along with a user manual and staff training. Installed and started up all hardware and software for the GIS system.

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Manjit S. Saini Project Manager

EducationMS, Civil Engineering, San Jose State University, California, 2002

MS, Civil Engineering, ThaparInstitute of Engineering &

Technology, Deemed Univ, 1997 BS, Civil Engineering, The

Institution of Engineers, India, 1993

RegistrationsRegistered Professional Engineer

(Civil), California Intermediate Level Action Cost

Engineering & Requirements8-Hour Radiation Safety and Use

of Nuclear GaugesHazard Communication

8-Hour OSHA Health & Safety Refresher Training

40-Hour OSHA Health and Safety Training

General Excavation Safety Training

Fire Extinguisher TrainingMedical Monitoring

Professional associationsAmerican Public Works

AssociationAmerican Society of Civil

EngineersInstitution of Engineers (India)

Mr. Saini is a project manager with extensive experience in the design of pipes,drainage channels, culverts, pump stations, stormwater management, erosioncontrol measures, and landfills. He has provided construction support services including project management, monitoring, and preparation of plans and specifications for a wide variety of environmental and geotechnical projects.Mr. Saini has performed hydraulic analyses, investigations and assessments,environmental impact statements, groundwater monitoring, protection, and remediation. He also has experience in the application of software packagesincluding HEC-RAS, Heasted Flowmaster and TR-55, and HELP models. He isalso proficient in operating HEC-HMS, Sewer CAD, and WaterCAD programs.

Experience

Serving as task manager for the $21 million on-call technical assistanceplanning and design contract for the California Department of Transportation's stormwater management program. Conductedfeasibility/conceptual level studies for construction of stormwater treatment systems, provided hydrologic and hydraulic analyses, and prepared basisof design reports. Designed stormwater pipes, stormwater treatmentdevices, and other hydraulic structures, such as weirs, spillways, and erosion control structures. Managed preliminary study on the alternative discharge of groundwater from a Caltrans underpass-dewatering-facility to a wastewater treatment plant or to deep ocean outfalls via a 16-mile-longpipeline. Developed preliminary cost estimates for planning purposes.

Managing hydrology, hydraulics, and drainage design of approximately 10.5 miles of new BART railroad tracks and stations along the tracks for the Santa Clara Valley Transportation Authority’s rapid transit corridor in Santa Clara County, California. Collected, reviewed, and validated hydrologicdata from the various agencies for the detailed design study. Utilized the data to develop 100-year and 500-year flood elevations along the projectcorridor using FEMA HEC-RAS models and hydraulic engineering analysis.Developed the drainage design and provided data to design tracks andassociated structures. Coordinated with various agencies to incorporate flood control projects in the project area in the detailed design.

Conducted location hydraulic studies on various creeks for the rapid transit corridor for the Santa Clara Valley Transportation Authority for Santa Clara County in California. Conducted studies that involved the hydraulicanalyses of creek and floodplains impacted by the railroad, collectedhydrology data of the creeks, reviewed floodplain information from FEMApanels, reviewed existing HEC-2 or HEC-RAS model results, developedHEC-RAS models for proposed project conditions to evaluate the impact,and plotted floodplain and flood flow areas. Developed mitigation measures to minimize the impact of proposed conditions. Coordinated with the agencies responsible for the flood control within the project study area.

Resume

Served as project manager for NPDES monitoring activities at the Adobe Systems Phase II Tower I site for the Redevelopment Agency of San Jose in San Francisco, California. Managed sampling and operation and maintenance of the groundwater treatment system, and regulatory liaison between the redevelopment agency and San Francisco Bay Regional Water Quality Control Board.

Served as project manager for the Austrian Dam downslope erosion control project involving hydrologic analysis at the dam site and hydraulic analysis to determine the erosion potential of the slopes. Developed interim and long-term erosion control measures that included storm drain system design, riprap, and/or application of geosynthetics for erosion control, and energy dissipaters, and involved in developing preliminary plans and specifications.

Participated in the preparation of a performance design package for the Department of Navy Consolidation Unit at the Navy Public Works Center Coral Pit, a solid waste management facility at the former Barbers Point Naval Air Station in Hawaii. Performed calculations to evaluate the infiltration rate through the Consolidation Unit cover and infiltration rate through bottom liner system of the stormwater pond, drainage layer design calculations for cover, cover slope stability, and calculations to determine the thickness of geosynthetic liner. Developed the conceptual design for a cradle to support an aboveground stormwater pipeline and erosion control measures. Performed runoff flow calculations for the revised performance design package and designed channel sections and erosion control measures.

Served as project engineer for open channel design for conveying runoff across the Leona Heights mine. Performed hydraulic analysis using HEC-RAS model to determine the shear stress on the channel beds and to develop alternative mitigation measures. Developed design of erosion control and energy dissipation structures.

Prepared site layout and storm drainage plans and designed drainage channel sections and detention and sedimentation basin for landfill developments in Nigeria. Designed a landfill leachate collection piping and pumping system and assisted in alternative leachate treatment systems design, including aerobic, anaerobic and metals treatment. Evaluated leachate generation rates using Water Balance and HELP models. Evaluated leakage rates through different types of liner systems, and liner design. Designed a septic sewage sludge treatment system including reception chambers and associated piping and pumping system, and developed plans and specifications.

Managed an environmental investigation field program along the new sewer line route and at the lift station location site for Selby Resources, LLC, of Tormey, California, which involved drilling borings to various depths along the sewer route and lift station and the collection of soil and groundwater samples.

Managed the conceptual and detailed design of the gravity sewer, lift station, and force main for Selby Resources, LLC, of Tormey, California. Prepared and submitted the design memorandum to various agencies for approval of the conceptual design. Managed the detailed design of the sewer pipe, pipe appurtenances, lift station pumps, wet well, and valves, across various utilities. Developed construction plans and specifications. Coordinated with various agencies for design review and approval.

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Daniel W. Peterson Project Engineer

EducationBSCE, Civil Engineering,

California State University - Chico, 1993

BS, Mechanical Engineering,California State University -

Sacramento, 1984

RegistrationsRegistered Professional Engineer,

California

Mr. Peterson is a civil engineer with extensive background in designing,planning, and managing water and water quality systems for municipalagencies and private concerns. His experience includes the development and enforcement of statewide policies for both the California Department of Transportation and the California Department of Water Resources.

Experience

Designed hydraulic facilities for highway applications, and reviewedtransportation designs for hydraulic impacts and improvements, for the California Department of Transportation.

Established and enforced statewide policies on water quality issues both as chief in the Office of Storm Water Management and chief of the NorthRegion NPDES Branch for the California Department of Transportation.Also developed the Caltrans guidance manual and trained Caltrans staff statewide.

Managed and supervised the day-to-day operations of a water company.Developed the annual budget and monthly financial reports, engaged in long-range planning and programming, maintained good communicationsand relationships with shareholders, and represented the companyinterests before the board of directors.

Inspected construction work for conformance with plans and specificationsand was responsible for pay quantities and claims management as lead construction inspector for a $30 million pipeline project for the CaliforniaDepartment of Water Resources.

Installed piping and appurtenances and estimated materials and costs for construction projects.

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Scott W. Durbin Project Engineer

EducationMS, Environmental Engineering,

University of North Carolina at Chapel Hill, 2002

BS, Civil Engineering, University of Notre Dame, 2000

RegistrationsRegistered Professional Engineer,

California

Mr. Durbin is an environmental engineer with experience in wastewater andwater supply projects including hydraulic and treatment facilities design, water reclamation studies and designs, water resources management and planning,and stormwater projects. He has prepared comprehensive wastewatermanagement plans, conducted water reclamation studies, and designed watermains, booster pump stations, groundwater treatment facilities, well installations, and stormwater particle separators. In addition, he has developednumerous reports, permitting documents, and contracts to be submitted to clients and state agencies.

Experience

Provided engineering services for the $10.3 million on-call technicalassistance contract for stormwater management and the design of stormwater best management practices, as part of the California Departmentof Transportation's overall stormwater management program, which is required by its National Pollutant Discharge Elimination System permit.Served as engineer for the preparation of PS&E packages for four stormwater media filter pilot BMPs in the Lake Tahoe basin. Conducted a detailed data evaluation, hydrologic and hydraulic analysis, and design of four pilot chemically enhanced detention basin sites along state route 267, which involved modeling using ArcGIS and HydroCAD software, detention basin layouts, chemical dosing and mixing systems, inflow and outflow monitoring flumes, basin overflows, and access roads. Also developed a preliminary design memorandum, environmental study request, and a basisof design report for Caltrans.

Providing hydraulic modeling support for a wastewater master plan for San Francisco, California, involving working with the city's Bureau of Engineeringto develop and calibrate an InfoWorks model of the city's collection system.

Developed design criteria for the stormwater particle separators used to reduce sediment loading to the Muddy River for the city of Boston and the town of Brookline, Massachusetts. Managed the fieldwork crews andevaluated the performance of the existing Muddy River particle separators.

Served as project engineer for development of a comprehensivewastewater management plan report for the town of Mansfield,Massachusetts. Evaluated several sewering alternatives and developed a water balance of the town to analyze the impact of the sewer projects on groundwater, surface water, and sensitive receptors.

Evaluated the cost/benefit of reclaimed water alternatives for the town of Plymouth, Massachusetts. Performed hydraulic calculations to size thereclaimed water mains and estimated the cost of construction of eachalternative.

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Served as the project engineer for the Spring Street replacement well connection facilities for the town of Holden, Massachusetts. Designed well sizing, screen selection, pump/motor selection, pitless adaptor, yard piping, mechanical piping, well abandonment, and assistance with electrical and instrumentation design. Developed the construction plans and specifications, obtained wetlands permits, and conducted bid opening and shop drawing review.

Served as project engineer for a chemical feed facility for the Mill Street and Quinapoxet wellfields. Developed the proposal and evaluated corrosion control and other water quality treatment options. Developed the conceptual facility plan report, followed by the final design plans and specifications for a groundwater treatment facility, including mechanical design consisting of NaOCl, KOH, and NaF chemical feed calculations, chemical tank and pump sizing, building layout, mechanical piping and specifications and civil design including yard piping layout, pipe sizing, valve locations, water service line and specifications.

Served as project engineer for the design of 7,200 feet of ductile iron water main connecting a 42-inch main in Worcester to the distribution system of the town of Holden, Massachusetts. Provided design of 24-inch and 16-inch water mains including hydraulic calculations, profiles, layout, tapping location, restrained joints, connection, and start-up.

Served as project engineer for the design of a 2.1-mgd below-ground booster pump station. Developed the civil and mechanical design plans and specifications and coordinated electrical, mechanical, HVAC, plumbing, structural, and instrumentation design. Designed site layout for the mechanical, electrical, and surge tank vault; facilities interior layout; pump selections; hatch design; and piping arrangement.

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Mohammed M. Ibrahim Project Engineer

EducationME, Environmental and Civil

Engineering, University of Detroit Mercy, 1998

BS, Civil Engineering, University of Khartoum, Sudan, 1993

RegistrationsEngineer in Training, Michigan

Mr. Ibrahim is a senior engineer experienced in surface water modeling and in the design of water and wastewater treatment facilities.

Experience

Providing engineering support, technical assistance for planning, anddesign for the $10.3 million on-call stormwater technical assistanceplanning and design contract for the California Department of Transportation's overall stormwater management program, which is required by its National Pollutant Discharge Elimination System permit.Performed quality control reviews for stormwater data reports to ensure that they were prepared consistent with the current version of the projectplanning and design guide, the NPDES permit, and the stormwatermanagement plan. Also prepared workshop presentation materials for the stormwater data report, which is to be used by Caltrans personnelthroughout the state. Provided technical assistance for the development of the basis of design report for stormwater pilot best management practices along state route 73 and provided technical guidance by generatingconstruction site and water pollution control estimates.

Participated in the development of a water distribution and water qualitymodel for the Detroit Water and Sewerage Department, which involvedcollecting data for distribution system pipes, creating inventory files for the pipes, and researching fire flow requirements for the individual buildings in the city. Assisted with the development of the model geometry and used computer software including Arcview, Geomedia, and MPDigitizer.Participated in on-site field testing and monitoring using chlorine/fluoridepocket colorimeters, CL17 chlorine analyzer, pressure data loggers, and insertion magmeters. Also participated in the development and calibrationof the model using EPANET. Assisted with short-term planning,construction cost estimating, and preparation of a recommended capitalimprovement plan.

Provided technical and engineering assistance for the conversion of a 150-mgd air activated sludge aeration basin to a 310-mgd high-purity oxygenactivated sludge basin at the wastewater treatment plant in Detroit, Michigan. Participated in the creation and revision of engineering designdrawings, design calculations, and contract specifications.

Created a water quality model to simulate conditions along a 5.95-milesegment of Cedar Creek in Galesburg, Illinois, to determine the loadreductions necessary to support designated uses in the creek. Used the Storm Water Management Model (SWMM) to predict the quantity and quality of runoff into the listed segment of the creek and the steady-statewater quality program QUAL2E to predict water quality in the listed segment of the creek. Used the model results to determine the loadsnecessary to achieve compliance along the creek segment.

Resume

Worked with a water resources team to create U.S. EPA engineering models for surface water fate and transport, total maximum daily loads, and combined sewer overflow discharges using the QUAL2E, SWMM, and WASP packages.

Participated in the design of water and wastewater treatment facilities and combined sewer overflow facilities for the Detroit Water and Sewerage Department.

Prepared contract documents, cost effectiveness studies, specifications, and facilities plans for the Detroit Water and Sewerage Department.

Participated in site and office work related to the design and construction of multistory concrete and steel buildings in Khartoum, Sudan.

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Chris A. Brothers Project Engineer

EducationMS, Civil and Environmental

Engineering, Ohio University, 2001 BSCE, Civil Engineering, Ohio

University, 1999

RegistrationsRegistered Professional Engineer,

California

Professional associationsAmerican Society of Civil

Engineers

Mr. Brothers is a civil and environmental engineer with extensive backgroundand experience in the planning and predesign of water- and wastewater-relatedmodels, conveyance, and treatment systems.

Experience

Served as senior civil engineer for collection system modeling and the update of a strategic plan, for the Orange County Sanitation District in California, which included the development of a fully dynamic hydraulic collection systems model using ArcGIS 9.1 and InfoWorks 6.5 software.Participated in study area selection; network data conversion, digitizationand validation; model inflow development and calibration; verification of current system conditions; evaluation of present and future capacity of the system; development of specific capital improvement projects; and reportand graphics preparation. Created a detailed GIS mapping environmentthat allows easy control and display of diversion settings and their relationship to model simulation results. Also participated in the development of maintenance and data management procedures for the collection system model, and in the training of district staff in the use of the model.

Participated in the development of a collection system capacity plan for the Colorado Springs Utility, including study area selection, network data digitization and validation, model inflows development, calibration andverification of dynamic model using Hydroworks 6.0/.

Served as project engineer and modeler for a long-term sewer flowmonitoring program for the Orange County Sanitation District, whichincluded planning the installation of 150 battery and A/C powered flow meters to monitor 160 mgd of the wastewater treatment plant’s 250-mgdaverage daily flow. Optimized the positioning of the meters by consideringlocations susceptible to overflow, critical peak flow management facilities, flow diversion settings and assumptions provided, hydraulic deficiencymaps, and sewershed delineations at approximately 150,000 linear feet of upstream pipe. Used ongoing discussions with the client to edit incorrectlydigitized map topology and to update newly changed map topology using ArcGIS 8. and used ArcGIS 8 to create a geo-referenced flow diagramindicating connectivity of each flow meter and associated basin, critical diversions, and critical diversion status.

Participated in a long-term sewer flow monitoring program for the OrangeCounty Sanitation District, to advance its cooperative projects program goalof a 20 percent reduction in rainfall-dependent inflow and infiltration'scontribution to the district's peak wet weather flows seen at its treatmentplants and ocean outfall. Compiled information on member agency's sewersystems, flow monitoring, and RDI&I data to develop a geo-referenceddatabase in ArcView and ArcGIS; performed preliminary RDI&I assessmentconsidering flow data and RDI&I analyses through the winter of 2002-2003

Resume

using geo-database and OCSD and member agency information. Formulated RDI&I criteria and applied it in weighted schemes to remove 75 of the 150 flow meters in May 2004 and prepared the technical memorandum describing conclusions and recommendations to advance OCSD's CPP goal.

Reviewed existing sewer atlas maps as part of the development of a sewer master plan for the city of Santa Ana, California, to determine which microfilm aperture cards contained plans for modeled sewers. Organized the planning effort to determine the most accurate way of scanning the required cards. Converted the city's AutoCAD general plan map to ArcView GIS format to facilitate spatial processing and delineation of modeled sub-areas.

Participated in a comprehensive program for the management of natural resources in the Owens Valley for the Los Angeles Department of Water and Power. Conducted a detailed evaluation of data and metadata sets and created metadata dictionaries for all major datasets. Created entity relationship diagrams using Microsoft Visio, as part of the data modeling process of major datasets. Facilitated the migration of datasets into a Microsoft Access database by creating Visual Basic Application programs to help normalize raw Excel files and performing SQL queries. Also assisted in developing more complex data conversion and validation tools.

Conducted a one-year surface water quality study of a small sub-watershed for the effects of acid mine drainage for the Ohio Department of Natural Resources in Athens, Ohio. Identified sources, calibrated water sampling equipment, organized monthly sampling routine, collected and analyzed stream water samples, made flow measurements, and conducted a GPS survey of the entire site. Created a Geographic Information System for AMD source identification, a one-dimensional surface water chemical model, and abatement designs using GPS and sampling data.

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Lawrence R. Soucie Support Staff

EducationMS, Environmental Engineering,

University of Massachusetts, 1989 BS, Environmental Sciences,

University of Massachusetts, 1986

RegistrationsEngineer in Training,

Massachusetts40-Hour OSHA Health and Safety

Training8-Hour OSHA Health & Safety

Refresher Training

Mr. Soucie is a modeling specialist with extensive experience in collectionsystem modeling using a range of software, including InfoWorks, HydroWorks,Mouse, SWMM, and XPSWMM. He also has experience with the assessmentof the impacts of point and nonpoint sources of pollution on receiving waters,surface water and groundwater flow, and transport modeling and programming.He has participated in all phases of combined sewer overflow modelingincluding development, calibration, verification, and application.

Experience

Providing stormwater modeling and hydraulic calculations for the $10.3million on-call stormwater technical assistance planning and designcontract for the California Department of Transportation's overallstormwater management program, which is required by its NationalPollutant Discharge Elimination System permit. Participating in the development of guidance material relating to water quality, preparation of training materials for stormwater practices, and the performance of studies to evaluate best management practices.

Participated in the development of hydrologic and hydraulic models for four media filter pilot best management practices, as part of the on-call stormwater technical assistance contract with Caltrans. Used the HydroCAD stormwater modeling software and used the models to supportthe design of filter basin pilot sites at outfalls along state route 267 in the Lake Tahoe basin. Also assisted with the preparation of a draft basis of design report.

Developed an EXTRAN model for Arlington, Massachusetts, to design drainage improvements at the Reed Street landfill. Used the model to compute flooding elevations in the street as well as water elevations in a retention pond and wetlands upstream and downstream of the site.

Determined the statistical nature of water quality impacts on Massachusettsstreams due to point and nonpoint sources of pollution for the Massachusetts Division of Water Pollution Control. Developed a MonteCarlo simulation computer program capable of using several probability distributions and incorporating correlations between variables.

Supervised the conversion of the Massachusetts Water ResourcesAuthority’s SWMM collection system model to the state-of-the-artInfoWorks modeling system. Converted the combined sewer portion of the SWMM model to InfoWorks, while the remainder of the MWRA system wascreated from the MWRA database. Supervised the calibration of the model to over 200 meters for use in developing system optimization and extremeevent management alternatives.

Resume

Converted a Mouse model of the collection system in Springfield, Massachusetts, to InfoWorks and supervised the refinement and recalibration of the model.

Developed and applied a detailed model of the Berkeley Street CSO treatment facilities, in Holyoke, Massachusetts, which was applied to optimize design.

Provided technical assistance for converting SWMM models to InfoWorks and developed a pilot model of a portion of the collection system in Baltimore, Maryland.

Provided technical assistance and direction for the development of a

Supervised the development of a 2-D receiving water model for a portion of the Connecticut, Chicopee, and Westfield Rivers using MIKE21 software for the city of Springfield, Massachusetts.

Conducted 3-D modeling of a treated CSO discharge into Boston’s Fort Point Channel to determine the effects of the discharge on the surface currents and on water quality for the Massachusetts Water Resources Authority.

Developed and applied a 2-D model of a portion of the lower Charles River for the Massachusetts Water Resources Authority to help evaluate stormwater and CSO impacts on the river.

Conducted groundwater flow and transport modeling in Orange, Putnam, Norwich, and Sharon, Connecticut, for the Department of Transportation. Conducted remedial investigations and feasibility studies for groundwater extraction and treatment systems.

Performed groundwater flow modeling using a three-dimensional groundwater flow model for the New York Department of Environmental Conservation at the Schatz Federal Bearing site. Optimized the number, placement, and flow rate of extraction and recharge wells for a groundwater remediation system.

Conducted remedial investigations and feasibility studies for the Connecticut Department of Transportation in East Lyme, Putnam, and Norwich. Analyzed pumping test data and performed groundwater flow and transport modeling to assess the fate of contaminants released into the subsurface and to determine the most effective means of remediation.

Publications and presentations

"Collection System Modeling for Hydraulic Optimization in Boston," Water Environment Federation's Collection System Conference, August 2004 (with D. Brocard, S. Tsay, D. Walker, and B. Kubaska).

“Calibration to a 50-Year Storm Validates Modeling to Support CSO Relocation Design,” Water Environment Federation Collection Systems Wet Weather Pollution Control Conference, May 2000 (with D. Walker and D. Kubiak).

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Mary C. Opila Support Staff

EducationBSE, Electrical Engineering,

Princeton University, 2004

RegistrationsEngineer-in-Training,

Pennsylvania

Ms. Opila is an electrical engineer with experience with wastewater collectionand treatment systems and water treatment and distribution systems. She alsohas experience performing calculations, providing construction quotations, andtroubleshooting water and wastewater systems.

Experience

Providing engineering services for various California Department of Transportation contracts, as part of on-call stormwater technical assistanceservices for the planning and design of highways, which span five years, total more than $31 million, and support Caltrans' overall stormwatermanagement program, as required by its NPDES permit. Developedstandard details and designs for various treatment best managementpractices.

Participated in the development of a collection system model, as part of the development of a sewer system master plan for San Francisco, California,using InfoWorks. Participated in the development and implementation of a model of the collection system network, tidal data, rainfall data, dry weatherflow, meter data, and subcatchment parameters. Also assisted withnetwork calibration and validation.

Designed, wrote engineering reports, and completed DEP permit applicationsfor various water and wastewater systems, as an engineer with a pumpsystems company in Pennsylvania, including systems providing water for 125residences. Performed calculations to properly size water treatmentsystems, including filtration components, pumps, wet wells, piping, and storage tanks. Provided quotations for construction of pump houses, sewagelift stations, and water treatment facilities and programmed system controlsfor pump houses, sewage facilities, and private residences. Also provided troubleshooting for water and wastewater systems ranging in size from single-family residences to a Radisson hotel and conference center.

Taught middle school science teachers how to use various technologiesuseful for science in the classroom, including how instruments and computer programs are used and ways in which these tools can be implemented in the classroom.

Assisted in the development of an ad-hoc portable wireless network, as an engineering intern with a firm in Pennsylvania, which is currently deployedin Mississippi to assist with hurricane relief efforts.

Served as a teaching assistant at Princeton University, which involvedexplaining various tools and methods used in the laboratory for Introductionto Logic Design, a sophomore-level course, and System Design andAnalysis, a junior-level electrical engineering course. Assisted students in need of guidance and graded laboratory reports and presentation of students’ work.

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Megha Bansal Support Staff

EducationMS, Civil and EnvironmentalEngineering, San Jose State

University, 2004ME, Environmental Engineering,

Malaviya Regional EngineeringCollege, Jaipur, India, 2000BE, Civil Engineering, MBM

Engineering College, Jodhpur,India, 1997

RegistrationsEngineer in Training, California

Ms. Bansal is a civil and environmental engineer with experience in wastewatersampling, performing site evaluations for wastewater treatment and disposalsystems, conducting wastewater feasibility studies, and providing wastewaterconveyance and treatment system designs. Her experience also includescollecting and evaluating laboratory data, analyzing wastewater treatmentsystem alternatives, and preparing hydrology and stormwater pollutionprevention plans and other technical reports.

Experience

Served as staff engineer responsible for site evaluations for wastewatertreatment and disposal systems, wastewater feasibility studies, wastewaterconveyance and treatment system designs, wastewater sampling, andtechnical report preparation.

Prepared hydrology reports, drainage calculations, and stormwaterpollution prevention plan reports.

Analyzed and evaluated wastewater treatment system alternatives,provided cost estimates, and assisted clients in complying with the regulatory agency requirements.

Performed a bench-scale study for the city of Palo Alto, California to determine the effects of chloramines on the formation of disinfectionbyproducts in wastewater. Reviewed literature, conducted laboratoryexperiments, collected and evaluated the data, and wrote the report.

Managed a database of copper and mercury concentration in the wastewater in Palo Alto, California. Reviewed literature, determined areasof higher copper and mercury concentrations in the city, and analyzed the data.

Planned and designed a sewer system for a new residential colony in Jaipur, India. Analyzed the feasibility of the recycled water facility plan and the various water issues, requirements, objectives, and urban andagricultural opportunities surrounding recycled water use. Developedenvironmental reports and assessed various alternatives to the project.

Assessed a stormwater drainage system in a flea market area in Jaipur,India, and analyzed the feasibility of a solid waste to energy project for the city.

Examined nutrient enhancement effects on freshwater algae andresearched the South Bay Salt Pond Restoration Project in San FranciscoBay. Also participated in academic training in India for the plan and designof a multistory building, state highway construction, and a water distributionsystem.

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Uday Khambhammettu Support Staff

EducationMSE, Environmental Engineering,

University of Alabama, 2006BE, Environmental Engineering,

Visvesvaraya TechnologicalUniversity, 2002

Mr. Khambhammettu is a junior engineer with experience in hydrology and design of various stormwater best management practices. He also has experience with experimental design and field verification of stormwaterpractices. His Masters thesis involves the evaluation of performance of upflowfiltration for treating stormwater.

Experience

Providing design and hydrology calculations for the $10.3 million on-callstormwater technical assistance planning and design contract for the California Department of Transportation's overall stormwater managementprogram, which is required by its National Pollutant Discharge EliminationSystem permit. Participating in preparation of design reports for stormwater practices, and the performance of studies to evaluate bestmanagement practices. Prepared technical memorandum on vector controlfor Delaware sand filter and multi chambered treatment train. Assisted in site evaluation and preparation of field reports for various CaliforniaDepartment of Transportation's maintenance stations in Los Angeles andSan Diego districts. Evaluated infiltration and wet basins for highway loops on I - 710. Assisted in addressing the comments on gross solids removal device design guidance and reviewed debris area calculations on GSRDs. Designed and provided sketches for standard details for the water quality outlet riser for wet basin, infiltration basin and monitoring well. Preparedthe basis of design report for a Type 1 GSRD.

Served as a team member of a research group working on sourceverification of inappropriate discharges, a joint effort with the Center for Watershed Protection and U.S. EPA.

Assisted as team member of a research group working on . sedimenttransport in grass swales, which was sponsored by the UniversityTransportation Center of Alabama and the Water Environment ResearchFoundation.

Developed and demonstrated effectiveness of upflow filtration setups for the treatment of stormwater runoff for a project funded by the U.S. EPA.

Assisted in preparing a layman’s report for conceptual design for a waterand wastewater treatment plant at San Luis Obispo, California,marketplace. Provided calculations on water demand and wastewatergeneration and reuse.

Estimated material quantity take-off for the Los Angeles aqueduct filtration plant for the City of Los Angeles Department of Water and Power.

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Publications and Presentations

“Stormwater Treatment at Critical Source Areas using Upflow Filters,” 81st

Annual Meeting of the Alabama Academy of Sciences, Montevallo, Alabama, 2004 (with Robert E. Pitt).

“Upflow Filters Evaluation for Treating Stormwater at Critical Source Areas,” Poster presented at the Alabama Water Resource Conference and AWRA Alabama Section Symposium, Orange Beach, Alabama, 2004 (with Robert E. Pitt).

“Stormwater Treatment using Upflow Filters,” World Water and Environmental Resources Congress, EWRI-ASCE, Anchorage, Alaska, 2005 (with M. Pratap, S.E. Clark, and R. Pitt).

“Upflow Filtration for the Treatment of Stormwater at Critical Source Areas,” International Stormwater and Urban Water Systems Modeling Conference, Toronto, Canada, 2006 (with Robert E. Pitt).

“Performance of Upflow Filtration for Treating Stormwater,” World Water and Environmental Resources Congress, EWRI-ASCE, Omaha, Nebraska, 2006 (with Robert Pitt, Robert Andoh, and Shirley Clark).

Full Scale Evaluation of Upflow™ Filter - A Catch Basin Insert for the Treatment of Stormwater at Critical Source Areas, WEFTEC, Water Environment Federation, Dallas, Texas, 2006 (In Publication) (with R. Pitt, R. Andoh, and D. Woelkers).

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Bruce A. Engerholm Technical Advisor

EducationPhD, Civil-Sanitary and Hydraulic

Engineering, University of Arizona,1981

MS, Civil-Sanitary Engineering,North Dakota State University,

1976BS, Civil Engineering, North

Dakota State University, 1970

RegistrationsRegistered Professional Engineer

(Civil), California Registered Professional Engineer

(Civil), HawaiiRegistered Professional Engineer

(Civil), Utah

Professional associationsAmerican Water Works

AssociationWater Environment Federation

Dr. Engerholm is an associate and project director with more than 25 years of experience in the planning, design, and construction support of water and wastewater facilities, including pump stations, treatment plants, and storage reservoirs. He has also designed water reclamation facilities for water reuse in both irrigation and industrial applications.

Experience

Serving as stormwater technical leader for the $10.3 million on-callstormwater technical assistance planning and design contract for the California Department of Transportation's overall stormwater managementprogram, which is required by its National Pollutant Discharge EliminationSystem permit. Managing a selenium treatment alternatives study for Route 261, including preparing scopes of work, budgets and schedules,and monthly progress reports for Caltrans.

Served as principal for stormwater treatment engineering and designservices to the North County Transit Development Board for the Sprinterrail project in California. Oversaw a feasibility study to determineappropriate BMP locations and sizes for the already-designed stations,development of preliminary cost estimates, and detailed engineering and design of the bioretention cells at each station.

Served as principal for mechanical hydraulic and instrumentation designservices for two stormwater pump stations in the Pier S container cargoterminal development area of the Port of Long Beach, California.

Managing design and construction services for the rehabilitation of pump station #62 and installation of a force main in San Diego, California.Overseeing civil, structural, mechanical, HVAC, plumbing, electrical, and instrumentation engineering for the phased upgrading of the 1,310-gpm wet-well/dry-well pump station and the design of a new 4,370-foot-long 12-inch-diameter force main.

Managed the upgrade of the San Mateo and Shaw Road pump stations forthe city of South San Francisco, California. Directed a review of the pumpstations and tributary sewer system; preparation of plans, specifications,and cost estimates; and services during construction.

Participating in the city of San Diego’s sanitary survey update as a subconsultant.

Managed design of a wastewater collection system for the Los Ososcommunity in San Luis Obispo County, California, including 7 pumpstations, 5 miles of force main, 2.5 miles of low-pressure sewers, and 25 miles of 6- to 30-inch-diameter deep collector sewers.

Managing design of three sewer monitoring stations for flow and pH for Roche Bioscience in Palo Alto, California.

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Provided technical review for the design, construction, and commissioning of a sewer flow monitoring station for Hinckley-Schmidt in Sacramento, California.

Served as principal-in-charge of the design of a new wastewater collection system for the Superstition Mountain Community Facilities District No. 1 in Apache Junction, Arizona, including sewers and a 10-mgd pump station.

Provided engineering services for the expansion of the San Vicente wastewater reclamation plant from 0.6 to 0.8 mgd for the Ramona Municipal Water District. Installed a new oxidation basin, bar screen, and pressure filter. Upgraded or expanded the headworks screenings conveyor and Parshall flume, secondary splitter box, secondary effluent chlorine contact tank, hypochlorite storage and feeding station, RAS/WAS sludge pumps, sludge drying bed covers, and wet-weather storage ponds. Developed an effluent disposal program.

Provided engineering services for a 90-mgd wastewater treatment plant for Arizona Public Service using two-stage lime softening, followed by filtration.

Served as project manager for the evaluation and implementation of upgrades to improve odor control at the water pollution control facility operated by the San Elijo Joint Powers Authority. Oversaw a field odor survey and report that identified improvement projects and developed a mitigation plan.

Managed pre-design, design/build bid documents, and services during construction of the expansion of the San Diego Wild Animal Park's water reclamation facility from 44,000 to 150,000 gallons a day.

Served as principal-in-charge of the design of a new wastewater treatment system for the Superstition Mountain Community Facilities District No. 1 in Apache Junction, Arizona.

Managed design of a 1.7-mgd BNR wastewater treatment plant for the Los Osos community in San Luis Obispo County, California.

Managed two separate wastewater facility upgrade and expansion projects at the Fort Kamehameha wastewater treatment plant for the U.S. Navy, Pacific Ocean Division, including DAF, sludge thickening, and sludge pumping.

Managed a nondomestic discharge evaluation for Schofield Barracks at Wheeler Air Force Base and Kunia Military Reservation in Oahu, Hawaii.

Provided engineering for a 90-mgd wastewater treatment plant for Arizona Public Service using two-stage lime-softening followed by filtration.

Designed a 1,500-gpm sludge pumping station for San Diego, California.

Developed water supply and wastewater master plans for five resort areas in the Bahamas, including water and wastewater treatment systems. Also participated in the design of desalination plants ranging in size from 10,000 gpd to 75,000 gpd.

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David R. Bingham Technical Advisor

EducationMBA, Business, WorcesterPolytechnic Institute, 1991

MS, Civil Engineering, University of Massachusetts, 1980

BS, Civil Engineering,Northeastern University, 1975

RegistrationsRegistered Professional Engineer,

OhioRegistered Professional Engineer

(Sanitary), Massachusetts

Professional associationsAmerican Society of Civil

EngineersWater Environment Federation

Ohio Water EnvironmentAssociation

Mr. Bingham is a vice president and technology director specializing in waterresources and wet-weather pollution control and prevention projects. Since joining the firm in 1977, he has worked on projects involving combined sewer overflow and stormwater management, sanitary sewer overflows, point and nonpoint source evaluations, infiltration/inflow and sanitary sewer evaluation surveys, mathematical modeling, monitoring, lake restoration, sitedevelopment, environmental assessment and permitting, feasibility studies, and engineering design. His work has included a wide range of watersheds and receiving water systems.

Experience

Serving as lead technical reviewer and advisor for the $10.3 million on-call stormwater technical assistance contract for the planning and design of highways, as part of the California Department of Transportation's overallstormwater management program, which is required by its NationalPollutant Discharge Elimination System permit. Participating in the preparation of guidance material related to water quality, development of training material on stormwater practices, and implementation of studies to evaluate new best management practices. Reviewing scopes and workproducts for various task orders being completed for Caltrans, particularlythose related to BMP siting and design.

Serving as project manager for the collection system component of a city-wide wastewater system master plan for the city of San Francisco Public Utilities Commission in California.

Directing the preliminary design of major elements of the Easterly system’s CSO abatement program for the Northeast Ohio Regional Sewer District,which requires more than 10 miles of large-diameter (10 to 24 feet) storagetunnels in deep rock and soft ground, a 160-mgd tunnel dewatering pump station, and associated consolidated conduits and facilities.

Served as program manager for the Massachusetts Water ResourcesAuthority’s combined sewer overflow master plan and CSO facilities plan, part of the Boston Harbor cleanup project. Managed the assessment of MWRA’s entire wastewater collection system, which serves 40 communities,and the development of master planning needs and CSO control facilities recommendations. Managed extensive data collection in combined sewersand interceptors, modeling of the collection system using EXTRAN, andengineering alternatives assessment using a watershed approach.

Serving as project director for the development of a long-term combinedsewer overflow control plan for the Pittsburgh Water and Sewer Authority in Pittsburgh, which involves a detailed assessment of the city's sewer systemincluding data management and hydraulics modeling. Directing anevaluation of the format and content of the database containing informationabout the sewer system.

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Providing technical advice and review for the southern Kentucky County project for the Northern Kentucky Sanitation District No. 1.

Directed the preparation of a municipal Phase II stormwater management plan to satisfy NPDES permit requirements for the city of Elyria, Ohio.

Conducted an analysis of stormwater utility needs and options for Kansas City, Kansas.

Serves as technology director of M&E's wet weather practice. Develops and applies new technologies in stormwater management to various M&E projects.

Prepared an urban runoff control handbook, a technical resource with numerous case studies, for the U.S. EPA, which outlines a planning process that municipalities can use to address wet weather pollution problems.

Provided technical support for sewer system modeling, watershed planning, and wet-weather master planning as part of a program management contract for the Metropolitan St. Louis Sewer District.

Directed facilities planning for the Northeast Ohio Regional Sewer District’s Southerly area. Overseeing monitoring, modeling, and alternatives evaluation for a combined system of 18,000 acres that spans several communities.

Provided technical advice for a program management contract to address SSOs for the city of Baltimore, Maryland. Furnished technical support for the negotiation of a consent order between the city, state, EPA, and Department of Justice.

Conducted a case study of nonpoint source regulations and BMP requirements for the city of Lewiston, Maine.

Managed the preparation of an NPDES stormwater permit for the Bradley International Airport and a group permit application for the highway maintenance facilities for the Connecticut Department of Transportation.

Served as project engineer on the Tampa Nationwide Urban Runoff Program, analyzing extensive stormwater runoff data using the Storm Water Management Model. Assessed the impact of stormwater on the Hillsborough estuary using the dynamic time-varying one-dimensional model WQON. Developed an approach for control of stormwater, drainage control, and water quality for a 25-square-mile drainage basin.

Directed the preparation of an inspection manual for assessing coastal nonpoint source management measures, focusing on techniques for assessing implementation, operation, and maintenance aspects of urban, agricultural, and forestry best management practices.

Managed a nonpoint source control study in the Merrimack River basin, which included the development of watershed protection measures, as well as a prototype development plan showing appropriate BMPs for use by communities. Focused on the use of nonstructural, regulatory BMPs.

Managed the preparation of urban runoff and nonpoint source control plans for three watersheds in Freeport, Maine. Subsequently managed the

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design of extended detention retrofits for 10 existing dry detention ponds in two of the watersheds.

Provided peer review of the draft capstone report Management of Combined Sewer Overflow (November 2001), prepared by the Urban Watershed Management Branch of the EPA’s Office of Research and Development.

Serving on the technical advisory committee for a wet weather pollution control program for the city of Toledo, Ohio.

Provided technical oversight of the development of a regional hydraulic model of the Potomac interceptor in the Washington, D.C., for use in allocating hydraulic capacities among multiple county jurisdictions.

Directing an SSO remediation plan for the city of Elyria, Ohio, involving flow monitoring, hydraulic modeling using MOUSE, alternatives evaluation, and implementation plan development.

Directed several early-action CSO design and construction projects for the Northeast Ohio Regional Sewer District, including the installation of Westerly River inflow controls, addition of a regulator drop connection to the Northwest interceptor, improvements to several Westerly and Easterly regulators, and design of a parallel pipe storage system.

Serving as project principal for an evaluation of sewer rehabilitation options and design of the selected rehabilitation method for a three-mile section of the Big Creek interceptor for the Northeast Ohio Regional Sewer District.

Directed the development of a Phase II combined sewer overflow facilities plan for the Northeast Ohio Regional Sewer District’s Easterly system, which has 15,000 acres of combined sewers and a treatment plant with 400 mgd capacity. Directed all monitoring, modeling of the collection system and receiving waters, facilities planning, and public involvement.

Directed hydraulic modeling and mapping support for the Northeast Ohio Regional Sewer District’s Southwest interceptor using XPSWMM to evaluate sewer relief projects.

Served as technical director for two sanitary sewer evaluation surveys for the Department of Sewerage and Drainage in Columbus, Ohio, which included flow monitoring, field inspection and infiltration/inflow source detection, mapping, hydraulic modeling using MOUSE, GIS, and development of engineering recommendations for source removal, sewer rehabilitation, and relief.

Directed facilities planning for combined sewer overflows in the 10,000-acre Westerly area of Cleveland for the Northeast Ohio Regional Sewer District. Directed monitoring, modeling, data management, GIS, analysis of engineering alternatives, development of a recommended plan, and assistance with public participation activities.

Provided technical support to the U.S. EPA during discussions on the development of a policy on sanitary sewer overflows.

Served as project design engineer for the Chelsea screen house, a 125-mgd two-sided facility, which screens influent combined sewage and

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stormwater before it reaches the Massachusetts Water Resources Authority's Caruso pump station in East Boston.

Served as technical director for the Northeast Ohio Regional Sewer District for a combined sewer system characterization and modeling project for the 17,000-acre Mill Creek watershed, which has separate and combined sewer systems, combined sewer overflows, sanitary sewer overflows, and stormwater discharges in multiple communities including the city of Cleveland.

Provided technical advice to the city of Jacksonville, Florida, for an infrastructure management project, which includes compliance with new SSO requirements.

Managed a study to develop best management practice recommendations for the four combined sewer overflow communities in the Massachusetts Water Resources Authority service area, including regulatory, source control, public education, and low-cost structural practices to assist with the control of flows and pollutants entering the combined system.

Provided technical support to the U.S. EPA during development of the 1994 combined sewer overflow control policy.

Directed the preparation of the guidance manual on long-term planning for combined sewer overflow control for the U.S. EPA, the key manual that supports EPA’s 1994 CSO control policy.

Directed the preparation of a combined sewer overflow control manual for the U.S. EPA Center for Environmental Research and Information, focusing on six widely used control technologies, including in-system controls/storage, near-surface storage/sedimentation, deep tunnel storage, coarse screening, swirl technologies, and disinfection.

Directed the preparation of two technical studies for the U.S. EPA in support of the implementation of the 1994 combined sewer overflow policy. Evaluated options and the effectiveness of disinfection of CSOs for one study and evaluated options for primary clarification and the effectiveness of various technologies for the other.

Managed the preparation of the U.S. EPA’s 1992 Needs Survey for combined sewer overflow, including the preparation of a range of nationwide estimates for various CSO control goals.

Directed the preparation of a comparative cost assessment of wastewater and combined sewer overflow treatment technologies for the U.S. EPA.

Managed the development of a regional combined sewer overflow facilities plan for seven communities along the Connecticut River between Springfield and Holyoke, Massachusetts, to improve water quality conditions in the river. Supervised the inspection of community CSO systems, wet weather monitoring of flow and quality, river modeling, use attainability analysis, alternatives development and analysis, preparation of a recommended plan, and an extensive public participation program.

Served as principal author of the chapter on combined sewer overflows in the third edition of the Metcalf & Eddy wastewater engineering textbook.

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Dominique N. Brocard Technical Advisor

EducationPhD, Civil Engineering,

Massachusetts Institute of Technology, 1977

SM, Civil Engineering,Massachusetts Institute of

Technology, 1973 Ingénieur, Mechanical

Engineering, Ecole NationaleSupérieure d'Arts et Métiers

(Paris), 1972

RegistrationsRegistered Professional Engineer

(Civil), Massachusetts, Rhode Island

8-Hour 2006 NEWEA AnnualConference, Massachusetts

Professional associationsAmerican Society of Civil

EngineersBoston Society of Civil EngineersNational Water Well Association

International Association ofHydraulic Research

American Geophysical UnionWater Environment Federation

Dr. Brocard is a vice president specializing in the modeling and analysis of surface water and groundwater. His expertise lies in the areas of hydraulics,groundwater flow and contamination, water quality modeling, and effluentmixing and dispersion. Dr. Brocard has more than 30 years of experience in conducting and directing studies for industrial and environmental applications.

Experience

Serving as technical advisor and reviewer providing input on the design of stormwater best management practices for the planning and design of highways, as part of the $10.3 million on-call stormwater technical assistance contract, which is part of the California Department of Transportation's stormwater management program required by its NPDES permit. Reviewed and provided direction for hydrologic/hydraulic design,flume sizing, and basin sizing from treatment BMPs as part of task orders.

Providing technical direction for the collection system portion of the San Francisco wastewater master plan, which includes the development,calibration, and application of an InfoWorks model of the system, as well as modeling of receiving water quality impacts.

Provided technical direction for the Massachusetts Water ResourcesAuthority’s hydraulic optimization project in which an InfoWorks model of the wastewater collection system was developed, calibrated, and used to set forth operational changes to decrease CSO activations and floodingduring extreme events.

Directed the hydraulic analyses and modeling for the design of the NorthDorchester Bay consolidation conduit, which will store CSOs from that part of Boston Harbor and convey excess volumes to a CSO treatment facility through a 600-mgd pumping station. Used a refined SWMM model of the South Boston collection system, as well as a HydroWorks model of the consolidation conduit tunnels, which includes real-time control isolationgates and pumping.

Directed the modeling of stormwater and wastewater flows and combinedsewer overflows in the Massachusetts Water Resources Authoritywastewater collection system and in the Boston area as part of the CSO facilities planning and wastewater master planning project. Used the EXTRAN and RUNOFF blocks of the USEPA Storm Water Management Model to develop system models. Calibrated the model, which covered 43 communities and included 80 CSOs, with extensive flow-monitoring data.Used the model to optimize a CSO control plan that saved approximately$800 million compared to a previous plan.

Provided technical advice for hydraulic/hydrologic modeling of CSOfacilities planning of the Southwest interceptor and Mill Creek, Westerly,

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and Easterly systems in Cleveland, Ohio. Used SWMM EXTRAN, XP SWMM, HydroWorks, and MOUSE programs.

Directed the modeling, using HydroWorks, of portions of the collection system in Bethlehem, Pennsylvania. Determined that a CSO outfall that presently activates several times per year could be closed without causing upstream flooding.

Provided technical direction on modeling of the CSO system in Springfield, Massachusetts. Served as technical supervisor for subsequent modeling of the combined sewer systems of the city and adjoining communities (using MOUSE) and modeling of water quality in the Connecticut River (using MIKE 21).

Supervised the development of a stormwater management plan for the Norumbega storage tank, one of the largest finished water storage tanks in the U.S., which covered both construction and operation to ensure that runoff at the site would meet Massachusetts stormwater regulations and would not negatively impact several wetlands at the site. Conducted evaluations of compliance during and after construction by comparing flow measurements in site brooks with runoff model results.

Directed the modeling of the wastewater and drainage systems in Dubai using the MOUSE model. Developed two distinct models to optimize system expansions to accommodate growth.

Supervised a drainage master plan update for the town of Burlington, Massachusetts, prompted by flooding experienced in two drainage subcatchments for severe storms. Oversaw SWMM and HEC-RAS modeling of Longmeadow and Sandy Brooks.

Directed the hydrodynamic modeling of the Massachusetts Water Resources Authority’s southern collection system, using the USEPA’s SWMM model. Developed plans for permanent and temporary flow metering.

Supervised modeling of stormwater quantity and quality, using the SWMM model, at the Bradley International Airport in Hartford, Connecticut.

Supervised a study of stormwater runoff in “basins of special concerns” in Pasco County, Florida to assess the causes of the frequent flooding, and assist in the development of a new stormwater management ordinance to ensure that flooding would not be exacerbated by development.

Supervised drainage analyses to alleviate flooding experienced in the Allston section of Boston using the MOUSE model to simulate existing conditions and develop measures to alleviate the flooding without transferring its location downstream.

Supervised water quality surveys and modeling in Gloucester Harbor, Massachusetts, to evaluate the transport and impact of CSO discharges, which involved the development and application of a three-dimensional EFDC model of the inner harbor to assess the effect of stormwater discharges from an area to be separated under the CSO long- term control plan.

Directed analyses of water quality impacts from CSO discharges on the Charles and Mystic rivers in metropolitan Boston. Compared the impacts of CSOs on both stormwater and upstream discharges, using one- and two-dimensional models.

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Daniel W. Donahue Technical Advisor

EducationBS, Civil Engineering, Tufts

University, 1973

RegistrationsRegistered Professional Engineer

(Sanitary), Massachusetts

Professional associationsWater Environment Federation

Association of MetropolitanSewerage Agencies

Mr. Donahue is a vice president and project director with extensive experiencein facilities planning and design, receiving water quality analysis, and combinedand sanitary sewer overflow abatement. He serves as the company’s national wet weather practice leader responsible for all projects related to CSO andSSO control and stormwater drainage and pollution control. Throughout hiscareer, Mr. Donahue has acquired extensive experience in managingmultidisciplinary projects that require extensive coordination and public andregulatory participation, often under the demands of court-ordered schedules.

Experience

Serving as lead technical reviewer and advisor for the $10.3 million on-call stormwater technical assistance contract for the planning and design of highways, as part of the California Department of Transportation's overallstormwater management program, which is required by its NationalPollutant Discharge Elimination System permit. Participating in the preparation of guidance material related to water quality, development of training material on stormwater practices, and implementation of studies to evaluate new best management practices. Reviewing scopes and workproducts for various task orders being completed for Caltrans.

Directed M&E’s work on the Massachusetts Water Resources Authority’scombined sewer overflow control program, which included the developmentof a facilities plan and environmental information report for the recommended CSO treatment facilities to provide screening and disinfection, off-line storage, sewer separation, interceptor relief, systemoptimization, and floatables control. Oversaw facility siting, state-of-the-artcomputer modeling, geotechnical and hazardous waste materialsexploration, extensive public participation, and interaction with federal andstate regulatory agencies. Realized cost savings in excess of $800 millionand met all milestones in an aggressive court schedule.

Served as program director of a joint venture providing the MassachusettsWater Resources Authority with design, construction services, and residentinspection for the North Dorchester Bay and Reserved Channelconsolidation conduits and Reserved Channel CSO facility in Boston,Massachusetts. Oversaw design of 15,000 feet of a 13-foot-diameter soft-ground tunnel CSO consolidation conduit and a 600-mgd CSO treatmentfacility and pump station. Directed detailed hydraulic investigations,receiving water impacts, subsurface investigations, and public participationefforts.

Providing technical advice and review for ongoing projects for the NorthernKentucky Sanitation District No. 1, including southern Kentucky County,Licking River, and the western region collection system capacity analysis.

Serving as principal-in-charge for a joint venture providing the city of Atlanta, Georgia, with design and construction services for two CSO

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treatment facilities, one to treat 100 mgd at the R.M. Clayton facility and the other for 25 mgd at the Intrenchment Creek facility. Investigating alternative treatment technologies during preliminary design, including vortex separation, shallow-bed filtration, and UV disinfection, and conducting pilot testing. Providing final design, engineering services during construction, and construction management services for CSO treatment, including vortex technology, sedimentation, shallow bed filters, and disinfection.

Providing technical review and oversight for the development of a CSO long-term control plan in Pittsburgh, Pennsylvania.

Provided technical review and oversight for the management of a comprehensive program for the rehabilitation of the combined and sanitary sewer infrastructure systems in Baltimore, Maryland.

Conducted a facilities plan for combined sewer overflow abatement in Cleveland, Ohio. Determined various system conditions and economic effects using the EPA and M&E stormwater management model. Used an optimization program and determined the most cost-effective CSO abatement opportunities, which included source controls, regulator modifications, in-system storage gates, detention-chlorination facilities, and off-line storage facilities.

Directed a joint-venture project to provide St. Louis, Missouri, with planning services for a 15-year capital improvements program for the Metropolitan St. Louis Sewer District’s stormwater system. Oversaw the review of 2,300 potential projects in the $3.5 billion program to resolve CSO and SSO problems throughout the system. Directed the development of a system hydraulic model to assess project needs and impacts, and prioritized projects, associated costs, and implementation needs. Coordinated all efforts in the areas of regulatory, strategic, and technical planning.

Directed the development of a long-term planning program for CSO abatement in Springfield, Massachusetts, focusing on high flow management at the wastewater treatment plant, interceptor relief, CSO consolidation, screening and disinfection, sewer separation, and floatables control. Developed a regional receiving water quality model to assess priorities and benefits and addressed affordability issues related to program implementation.

Served as principal-in-charge for the design of a 30-mgd addition to the Union Street pump station in Springfield, Massachusetts.

Served as principal-in-charge of the design and construction of the 360-mgd Union Park detention/treatment facility upgrade and expansion for the Massachusetts Water Resources Authority. Directed the upgrade of the station’s firm pumping capacity, as well as improvements to the electrical and I&C systems. Integrated the CSO treatment facility with existing flood control pumping station and directed subsurface investigations, detailed hydraulic modeling, and extensive public participation efforts.

Served as principal-in-charge of the design and construction of interceptor relief and floatables control for the Massachusetts Water Resources Authority’s Chelsea trunk sewer for CSO control.

Section 3 Understanding of required services

This section describes Metcalf & Eddy’s understanding of the services required SCVURPP’stask assignments:

Urban stormwater management practices, issues, and requirements for new or redevelopment project sites related to the NPDES permit requirements

Continuous simulation hydrologic models and analysis of output data for the design or review of hydromodification flow control facilities

Cost estimate review of assessments for the design andconstruction of stormwater BMPs

Urban stormwater management practices, issues, and requirements The transformation of the land into residential, commercial, and industrial properties, and associated features modifies the naturalwatershed and stream processes by altering the terrain, modifying the vegetation and soil characteristics, and introducing more impervioussurfaces and pollutants. The implementation of the 1987 Clean WaterAct requirement for controlling pollution of the nation's waters by urban and industrial stormwater runoff is challenged by a number of complex technical issues. These issues need to be resolved before there can be cost-effective management of the water quality problemsassociated with stormwater runoff. Much remains to be done to develop specific approaches that can be used to control stormwaterrunoff-caused pollution to the maximum extent practicable. The key issue in developing an effective management program is whethercurrent stormwater runoff quality is in fact having significant adverseeffects on designated beneficial uses of receiving bodies of water.

The SCVURPPP is an association of 13 cities and towns in the Santa Clara Valley, together with Santa Clara County and the Santa ClaraValley Water District (co-permittees). To reduce pollution in urbanrunoff to the maximum extent practicable, the program incorporatesregulatory, monitoring and outreach measures aimed at improving thewater quality of South San Francisco Bay and the streams of the Santa Clara Valley. Various program elements are:

M&E’s experience with the Caltransstormwater program provides our team withan in-depth understanding of the issues facing SCVURPPP.

Urban Runoff Management Plan Model Performance StandardsPublic Information/Public Participation Annual Reports and Work PlansMonitoring Program Programmatic Monitoring IndicatorsEnvironmental Monitoring Measures Watershed ManagementPesticide Management Conditionally Exempted Discharges

Understanding of required services 2

The co-permittees share a common NPDES permit to discharge stormwater to South San Francisco Bay. The RWQCB’s Order 01-119 (October 2001) amended Provision C.3 of the SCVURPPP’s NPDES permit (Order 01-024, February 2001) to incorporate specific new developments and redevelopment requirements, including the hydromodificationrequirements. Under Provision C.3.f of the NPDES permit, limitation on increase of peak stormwater runoff discharge rates, the co-permittees are required to develop a hydromodification plan (HMP) to describe how they plan to manage increase in magnitude,volume, and duration of runoff from new developments and significant redevelopment projectsin order to protect streams from increased potential of erosion and adverse impacts

Issues and challenges in stormwater managementStormwater management and its role in the larger challenge of preservation of water quality is an evolving issue. As development continues at record levels, both the quantity of runoff and water quality are issues that need to be carefully investigated. The challenge is how to better handle storing, treating, and monitoring the stormwater runoff from these developmentswithout upgrading local drainage infrastructure or sanitary sewer facilities. The engineeringcommunity is being pushed to design new solutions that keep groundwater and surface waterecology safe while protecting development economics.

New EPA requirements

The increased pressure on engineers with regard to stormwater is mainly attributable to the Environmental Protection Agency's new NPDES requirements. The EPA expects "significantreductions in pollutant discharges and an improvement in surface water quality."

Challenge for municipalities

Stormwater is a challenge for municipalities that can affect the community at the macro andmicro level. From a macro standpoint, most local municipalities that encompass a givenwatershed cannot handle the increased runoff themselves, and rely on the entities responsible for sub-watersheds to develop a solution.

Challenge for developers

On a micro level, developers are faced with the challenge of complying with the new, stricterregulations. They are looking for solutions that are both effective and affordable within the scope of the development project in question.

Understanding stormwater management practices

Two basic principles or approaches for stormwater management are:

Traditional approach: This approach directs runoff to a drain as quickly as possible to prevent ponding; it does not typically attempt to minimize the generation of runoff or prevent or control stormwater pollution.

Current integrated systems approach: The current trend is toward a more comprehensive “systems approach” to managing stormwater runoff. An integrated system of preventive and control practices is used to accomplish stormwatermanagement goals.

Understanding of required services 3

Stormwater management practices (integratedsystems approach) are used to delay, capture,store, treat, or infiltrate stormwater runoff. The developers need to make careful choices aboutwhich stormwater management practices need to be installed in the watershed to compensate for the hydrologic changes caused by new and existing development. The general goals for stormwatermanagement practices usually include: a)maintain groundwater recharge and quality, b) reduce stormwater pollutant loads, c) protect stream channels, d) prevent increased overbankflooding, and e) safely convey extreme floods.Primarily, stormwater management practices can be of two types:

An integrated approach uses morenatural drainage features.

Preventive measures: Non-structural practices that help prevent the generation of runoff and the contamination of runoff by pollutants, which can be:

- Land use planning and management techniques

- Pollution prevention techniques

- Public education and involvement programs

- Erosion and sedimentation programs

- Illicit connection elimination programs

Control measures: Control measures are structural practices that control the volumeand peak discharges rate and or reduce the pollutant concentration of stormwaterrunoff. They use the processes of detention/retention, settling, percolation, evaporation or evapo-transpiration, and filtration etc. Various control measures can be:

- Vegetative practices

- Detention/retention practices

- Infiltration devices

- Filtration devices

- Low impact development measures

While many recent advances have been made in innovative stormwater managementdesigns, their ability to maintain resource quality in the absence of other watershed protectiontools is limited. In fact, stormwater management practices designed or located improperly cancause more severe secondary environmental impacts than if they were not installed at all.

Selecting the best stormwater management strategy can be a real challenge for a designer ordeveloper. M&E’s team can answer the questions or can resolve these important issuesrelated to stormwater management including:

What is the most effective mix of structural vs. non-structural stormwater managementpractices that can meet watershed or subwatershed goals?

Which hydrologic variables do we want to manage in the subwatershed (recharge,channel protection, flood reduction, etc)?

Understanding of required services 4

What are the primary stormwater pollutants of concern (phosphorus, bacteria,sediment, metals, hydrocarbons, or trash and debris)?

Which stormwater management practices should be used or avoided because of their environmental benefits or impacts?

What is the most economical way to provide stormwater management?

Which stormwater management practices are the least burdensome to maintain within local budgets?

M&E’s team has participated in all aspects of stormwater management planning activities asrequired within the SCVURPPP. The firm’s experience ranges from completing NPDES stormwater permits to citywide stormwater master plans meeting permit requirements toindividual basin plans to review or development of stormwater management practices. M&E has developed links between GIS and the hydrologic/hydraulic and nonpoint source computermodels used in stormwater management planning. M&E’s approach to stormwatermanagement is comprehensive, incorporating technical, aesthetic, financing, safety, and regulatory considerations. This comprehensive approach is intended to produce an optimal solution for clients.

Stormwater management requirements and concepts M&E’s professionals understand urban stormwater management requirements and the ultimate goal of maintaining the health of streams, lakes, and aquatic life, as well as providingopportunities for human uses of water by mitigating the effects of urban development. To achieve this goal, stormwater management strives to maintain the natural hydrologic cycle,prevent an increased risk of flooding, prevent undesirable stream erosion and, more importantly, protect water quality. M&E’s engineers and designers work with the concept of urban stormwater management that preserves and restores the hydrologic cycle. These basicconcepts are to:

Understand the position of the site with respect to large watersheds and to identifywhere stormwater comes to the site and where it goes.

Manage stormwater at the source rather than convey it away for treatment at the end of the pipe.

Apply techniques at a small scale and for small return periods in a site to improve the water quality. Smaller storm events can still create large pollutant loads and arefrequent; localized techniques are very effective in reducing stormwater pollution.

Use a wide variety of simple, effective, natural methods and materials to improve stormwater quality. Requiring and employing simple methods throughout a site can becost-effectively integrated into larger stormwater and flood control solutions.

Integrate stormwater management solutions to the overall site plan to provide recreational, aesthetic, habitat, and water quality benefits.

These concepts spring from an integrated and comprehensive approach to stormwatermanagement, considering each site’s unique position within a large watershed, and eachsmaller watershed within a site. The ingenuity of the designers or engineers can help developspecific techniques for the special requirements of any site.

Understanding of required services 5

Continuous simulation hydrologic models and analysis of output data Metcalf & Eddy has considerable experience in the application of continuous simulationhydrologic models for a range of applications from BMP design and hydromodificationassessment and mitigation to stormwater master planning. Several representative projectsare listed in the adjoining table. As this table demonstrates, Metcalf & Eddy has used a widerange of software packages for diverse applications. Given the availability of different software packages in the firm and M&E’s experience using them for projects, M&E’s modelersselect the most appropriate package for each application.

Location Software Application

Lake Tahoe, CA(Caltrans)

HydroCad Design of pilot studies for Modified Austin media filters and chemically-enhanceddetention basin BMPs

San Francisco, CA InfoWorks Development of stormwater master planfor several urban catchments subject to flooding, including detailed simulation of LID impacts

Boston, MA HEC-HMS Development of stormwater managementplan for 117 MG water storage tank withBMPs such as vortex separators,infiltration gallery and detention ponds.

Croton, NY HydroCad Development of stormwater managementplan to control hydromodification andrunoff quality for water treatment plantproject.

Arlington, MA SWMM Development of drainage system for landfill project in area prone to flooding.

Cleveland, OH MOUSE Development of CSO long term control plan including a range of wet weather flowand quality mitigation measures.

Springfield, MA P8 Development of BMPs for WatershopPond watershed.

Nashua, NH MOUSE Development of stormwater controlmeasures including high rate settlingtreatment facility for wet weatherdischarges

North Kentucky, KY InfoWorks Development of wet weather managementplan aimed at improving receiving waterquality.

Holyoke, MA SWMM Development of hydrograph for design of wet weather detention/disinfection facility.

Another feature apparent in the table is the fact that Metcalf & Eddy’s experience both localand national. While M&E has staff experienced in stormwater management in the Bay Area, the company also offers staff and specialists located throughout the country providingadditional expertise and experience. This experience is valuable for any local project wheresolutions developed elsewhere can provide direction as to approach, design, andimplementation. Metcalf & Eddy offers local implementation bolstered by national expertise.

Understanding of required services 6

Model applicationsContinuous hydrologic simulation models are used to develop realistic stormwater flow information for the evaluation of impacts and the design of BMPs and hydromodification mitigation measures. Based on hydrologic modeling, pollutant loadings to receiving water bodies can be estimated to assess the relative influence of stormwater and other factors such as point sources or atmospheric deposition. For some applications, annual simulations are done to provide a more complete assessment and to relate to regulatory requirements.

Hydrologic modeling is used to develop design storm hydrographs to size BMPs. Depending on the BMP, peak flow and/or volume can be the more important design parameters. In any case, accurate estimates are needed for effective design. Continuous simulation allows analysis of numerous types of storm events.

Analysis of output Most current hydrologic models have a range of output capabilities, including graphs of flow and water level to tables of peak flow and volumes. In some cases, output from hydrologic models is imported into other software for analysis. An example would be import to Excel to simulate the BMP performance. Another example is import to receiving water quality model to provide a quantitative assessment of water quality impacts.

Section 4 Relevant experience

Metcalf & Eddy is one of the most respected engineering firms in the United States, renownedfor its technical innovation and strong client service orientation. Since 1907, the firm hasprovided comprehensive services in wastewater and water engineering. M&E employs morethan 800 professionals and has more than 20 offices across the United States including anoffice in San Francisco. In the area of storm drainage and wet weather planning M&E has all the necessary expertise and experience needed to provide evaluations and solutions that are technically sound and cost effective to the SCVURPPP and its member communities. M&E’sexpertise and experience is based on knowledge and understanding of wet weather planningrequirements, experience applying the appropriate planning tools and implementing solutions.

Overview of stormwater experience Metcalf & Eddy has been involved in wet weather policy and technology since the inception ofthis field in the early 1970s. M&E has managed some of the largest wet weather programs in the country. Cities and regional agencies such as Caltrans (California Department of Transportation), SFPUC (San Francisco Public Utilities Commission), MWRA (MassachusettsWater Resources Authority), NEORSD (Northeast Ohio Regional Sewer District), Baltimore, Pittsburgh, Atlanta, and St. Louis have worked with M&E as their program manager or lead consultant. All of these projects have involved extensive wet weather technical tasks, while working side-by-side with numerous stakeholders including the client, other consultants, and outside agencies. The table below summarizes M&E’s services on these and other representative projects.

Representative M&E stormwater projects

Project / location Managementplans

Managementtechnology

Watershedmodels

GIS/datamanagement Permitting Design

Services

Caltrans Stormwater On-CallServices, Various locations, CA X X X X X X

Drainage and WW Master Plan,San Francisco PUC, CA X X X

North County Transit BoardStormwater Treatment, CA X X

Stormwater Pump Stations, Port of Long Beach, CA X

CSO Abatement Program, Cleveland,OH (NEORSD) X X X X X X

Reeds Brook DrainageImprovements, Arlington, MA X X X X X X

CSO Control Planning / Facilities Design, Boston, MA (MWRA) X X X X X X

Stormwater Management ProgramDevelopment, OH X X

Relevant experience 2

Representative M&E stormwater projects

Project / location Managementplans

Managementtechnology

Watershedmodels

GIS/datamanagement Permitting Design

Services

Wet Weather Compliance Program,Baltimore, MD X X X X X X

Wet Weather Control Program,Pittsburgh, PA X X X X X X

Wet Weather Program Planning,St. Louis, MO X X X X X

EPA Task Orders, OH X X X XStormwater Studies/Permitting,Department of Transportation, CT X X X X

CSO Planning and Facilities Design,Springfield, MA X X X X X X

Of particular interest to SCVURPPP is Metcalf & Eddy’s stormwater experience in California.As described in the featured projects that follow, M&E is providing Caltrans with stormwatermanagement services for transportation management facilities throughout the state. M&E is also developing master plan is to develop long-term CSO solutions and improvements for SanFrancisco. In addition, M&E provided mechanical hydraulic and instrumentation designservices for two stormwater pump stations at the Port of Long Beach Pier S container terminalarea and provided stormwater treatment engineering and design services to the North CountyTransit Development Board for the Sprinter rail project for BMPs at 15 passenger stations.M&E’s experience with these projects, especially in working with local entities and regulators,will prove invaluable in providing stormwater services to SCVURPPP.

Featured projects The following projects best illustrate M&E’s experience in the design of stormwater treatmentand flow control measures within the past five years.

Project 1: Caltrans stormwater management on-call services, various locations, California Metcalf & Eddy, as part of a joint venture, is providing the California Departmentof Transportation with on-call services related to stormwater management for theplanning and design of transportation facilities throughout the state. This two-year contract is part of a program to assist the department in achievingcompliance with its NPDES permit obligations. M&E is providing technical and professional services to prepare guidance manuals, specifications, design guidelines, and training materials related to stormwater management practices.

The specifications are being developed to serve as standard documents for a $200 million improvement program.

Relevance to SCVURPPP:

Review/evaluation of SWMP,SWDRs and NPDES compliance

BMP design and modeling

Cost review/assessment for BMPs

The team is developing and conducting training programs for department staff on stormwaterpollution concepts and practices, and the integration of stormwater compliance within the project delivery process. The team is also assisting with regulatory challenges to projectscurrently under design and will conduct feasibility studies, pilot studies, and bench-scale tests to develop best management practices for handling stormwater at these sites. For projectsrequiring the incorporation of treatment controls and pollution prevention measures into

Relevant experience 3

project design, the team will identify and describe the actions required to meet the requirements of the NPDES permit, stormwater management plan, or state guidancemanuals. Existing best management practices will be used to achieve compliance wherever possible, and new BMPs will be formulated as required. The team will recommend or developinspection and monitoring protocols for each BMP developed.

Applied studies will be conducted to develop new BMPs, modify existing BMPs, verifyperformance of BMPs, or fulfill court-mandated activities related to the planning and design of Caltrans facilities. The project team will provide feasibility studies; pilot tests/bench-scaletests; design; plans, specifications, and estimates; permit preparation; and construction- andmaintenance-phase design support as requested by the department’s project coordinator for a particular study. The following table summarizes selected task orders under this contract.

Project/Task OrderName Services Provided

BMP standard detaildevelopment –various task orders

Developing standard plans and special provisions for Caltrans-approved treatment BMPs, including the biofiltration strip, biofiltration swale, detention basin, dryweather flow diversion, infiltration basin, infiltration trench, multi-chamberedtreatment train, media filter, traction sand device, and wet basin. The team is working with Caltrans and staff from the California State University–Sacramento.

Design of gross solids removal devices,Los Angeles

Developed standard plans for gross solids removal devices for 52 separatelocations tributary to the Los Angeles River watershed. Devices included physicaland mechanical methods of removing solids 5 millimeters and larger from stormwater runoff using various screening technologies.

State Route 73 pilot BMPs

Assisted with the completion of plans, specifications, and estimates for the originalRoute 73 project to comply with a cease and desist order (No. 2001-198) from the San Diego Regional Water Quality Control Board. Design services included the replacement of compost stormwater filter systems along Route 73 (the San JoaquinHills Transportation Corridor, Caltrans District 12) with alternative stormwatertreatment BMPs

Tahoe Basin full-scale BMP pilot study, phase mediafilters siting anddesign

Conducted pilot studies to evaluate the ability of various BMPs in the Lake Tahoebasin to meet the numerical effluent limitations for stormwater and comply with theNPDES permit. Design services and project support for construction are beingprovided for four pilot-media plants in the basin.

Water qualityassessment guidance document

Reviewing current guidance, policies, and permits related to water qualityassessment, and assisting with the development of a water quality guidancedocument for stormwater issues. The draft guidance document will be revised priorto preparation of the final document

Project site erosionprediction using the revised universal soil loss equation(RUSLE2)

Developing procedural guidelines and a methodology to estimate and predict the amount of surface erosion at a project site for pre-construction, construction, and post-construction conditions. These procedures contain a protocol for documentingthe expected performance of the erosion control design, including the selected best management practices. The team is using a desktop-computer-based erosionprediction tool (version 2 of the Revised Universal Soil Loss Equation, known asRUSLE2) for the selected BMPs and erosion control design.

Feasibility evaluationof BMPs

Performed preliminary or conceptual level studies to evaluate feasibility of stormwater BMPs at various locations. Prepared feasibility study reports,conceptual layouts, and, cost estimates for planning purposes.

Austin sand filter design CarquinezBridge, Martinez

Developed detailed design of an Austin sand filter for treating runoff from CarquinezBridge toll plaza. Performed engineering calculations including (hydrologic andhydraulics calculations), and prepared plans and specifications.

Relevant experience 4

Project dates: 2004 – 2009

Reference: Mr. Timothy Sobelman, Senior Transportation Engineer, California DOT,PO Box 942874, 1120 N Street Room 2301, Sacramento, CA 94274-0001, Phone: 916-653-5747, E-Mail: timothy_sobelman@dot.ca.gov

Lead project manager: James Sullivan

Other key personnel: Bruce Engerholm (stormwater technical leader); David Bingham,Dominique Brocard, Daniel Donahue (technical advisors); Gary Friedman (technicalleader/project manager); Timothy Ormond (senior project engineer); Scott Durbin,Mohammed Ibrahim (project engineers); Mary Cate Opila (engineering support), DanielPeterson (engineering support)

Project 2: Stormwater treatment engineering, Sprinter Rail Project, NorthCounty Transit Development Board, San Diego County

Metcalf & Eddy, under subcontract to DMJM Harris, provided stormwatertreatment engineering and design services to the North County TransitDevelopment Board for the Sprinter Rail Project. The project is a rapidrail system connecting Oceanside to Escondido in San Diego County,and includes 15 passenger stations along the route. The previous station design specified the utilization of drain inlet inserts (also known as catch basin inserts) for parking lot runoff treatment. However, the subsequentSection 401 Water Quality Certification issued by the RWQCB requiredthe use of bioretention best management practice (BMP) treatment

devices, where feasible, to treat the station parking lot runoff.

Relevance to SCVURPPP:

Permit review

BMP design

Cost estimates

M&E was initially retained to perform a feasibility study to determine where the drain inlet inserts could be replaced with bioretention cells. This was an especially challenging exercisebecause the design of the parking lots was already complete, and significant changes to the layout, site grading, drainage, and landscaping were to be avoided. The feasibility study included calculating the individual drainage areas for each parking lot, calculating the size of each respective bioretention BMP cell, identifying an appropriate location for each cell, and estimating the preliminary construction cost of each cell.

Following the approval of the feasibility study report, M&E performed detailed engineering anddesign of the bioretention cells at each station. Given that construction had already begun, contract change order drawings and specifications were prepared for each station. The preliminary calculations prepared during the feasibility study were refined to develop final BMP sizes and hydraulic head requirements, and a set of drawings specifying the exact location of the BMP along with its components (vegetation, underdrain, overflow, etc.) were developed. The specifications provided provisions for the vegetation and soil composition as well as installation instructions and acceptance testing procedures.

Project dates: December 2004 – August 2005

Reference: Mr. Sig Fassmann, DMJMHarris, 610 West Ash Street, Suite 700, San Diego,CA 92101; Phone: 618-744-4502

Project principal: Bruce Engerholm

Other key personnel: Gary Friedman (project manager)

Relevant experience 5

Project 3: SFPUC wastewater and storm drainage master plan, San Francisco, California Metcalf & Eddy, in joint venture, is developing a clean water master plan for the city of San Francisco, California. The goal of the master plan is to develop long-term solutions andimprovements to address collection system and wastewater treatment needs for the city's future. San Francisco's system collects and transports flow to treatment facilities that typically treat 85-mgd during dry weather and more than 500-mgd during wet weather. M&E was the

lead consultant for development of the last city wastewater masterplan in the 1970s, and the city implemented many of the recommendations from that plan. San Francisco has decided to embark on a new effort to provide for the future of its citizens.

The master plan is addressing near term capital improvement needs(5 to 15 years) as well as long-term (30 years) development of both collection system and wastewater treatment needs. M&E is taking the lead on collection system improvements and planning, which involvesanalysis of sewer flow data, development and calibration of a sewersystem model, development and assessment of alternatives,

assessment of receiving water impacts, and development of a recommended plan. The rangeof issues addressed by M&E include control of wet weather overflows for San Francisco'scombined sewer system, receiving water impacts, drainage and flooding issues in neighborhoods, and odor control.

Relevance to SCVURPPP:

Receiving water impacts / NPDEScompliance

Flooding analysis, modeling, andfacilities design

Cost estimates

M&E is conducting special investigations for several topics related to the collection system:

Separating sewers versus maintaining the existing combined system

Optimizing flows in the system

Higher levels of overflow treatment

Methods of disinfecting overflows

M&E is also developing the comprehensive drainage plan (CDP) that will outline a long-termstrategy for mitigating flooding in the city, protecting public health and safety, minimizing property damage, and protecting the environment. The CDP will be integrated with the evaluation and hydraulic modeling of the city’s sewer system currently underway in the WWMP project and will be consistent with the WWMP’s project approach, tasks, scheduleand deliverables. The CDP will address three of the city’s major drainage basins most prone to flooding: Islais Creek, Channel (upper and lower), and Sunset. The plan will:

Identify the extent of flooding that can be expected for storms of different return periods(i.e., 5-, 10-, 25-, 50-, and 100-year storms)

Determine the causes of flooding in each drainage basin

Determine impacts of rising sea levels on flooding, if any

Determine the overflow control elevation for flooding

Develop levels of service for drainage for different areas based on land use and other criteria

Relevant experience 6

Develop flooding mitigation projects and programs to attain the desired level of service

Primarily. M&E is working on the following tasks.

Model development – Build upon InfoWorks model by adding smaller diameter pipelines, and incorporating a more detailed surface drainage model (DTM, etc).

Evaluation of drainage policies – Evaluate policies related to flooding, drainage, plumbing, including O&M and inspection, and complaince procedures. Evaluate design storms and sizing criteria.

Evaluation of existing conditions and needs – Evaluate service levels and associated design storms, hydraulic capacities of surface and subsurface systems, rainfall data analysis, meter data analysis, flooding complaint data evaluation, model development, calibration and validation. Evaluate each drainage basin to determine the extent of problem areas and impacts.

Alternatives development – Develop alternatives (hydraulic relief, storage, pumping, BMPs) to achieve the range of service levels, develop costs, and evaluate risk. Where possible, consider natural drainage systems and environmentally beneficial projects.

Decision process – Develop evaluation and prioritization criteria and decision process to evaluate alternatives.

Alternatives evaluation and project ranking – Evaluate the alternatives to identify the best solutions for each level of service. Rank projects and develop a capital improvement program for implementation by SFPUC.

Comprehensive drainage plan document – Prepare final document.

Project Dates: 2005 – 2008

Reference: Ms. Carolyn Chiu, Senior Project Engineer, San Francisco Public Utilities Commission, 1155 Market Street, 6th Floor, San Francisco, CA 94103, Phone: 415-554-0791

Project manager: David Bingham

Other key personnel: Timothy Ormond (deputy project manager), Dominique Brocard (technical advisor), Daniel Donahue (technical advisor), Scott Durbin (model development), Mary Cate Opila (model development)

Section 5 Statement of interest, availability, and commitment

As described in these qualifications, Metcalf & Eddy has been at the forefront in developing ofefficient, cost-effective methods for stormwater management strategies used by communitiesand regional authorities nationwide. The firm’s $31 million contract with the CaliforniaDepartment of Transportation for stormwater management on-call services exemplifies M&E’sexpertise in this area. M&E is strongly interested in applying this expertise on the proposedassignments for the SCVURPPP. M&E’s interest is supported by its understanding of the engineering services sought within SCVURPPP under this solicitation, which will be used to assist in the planning, design and specifications of the stormwater management practices for both maximum extent practicable and numeric standards for source control, site design, and permanent treatment facilities.

Specifically, Metcalf & Eddy will provide:

A stormwater management (SWM) plan for new or redevelopment project sites to guide in their compliance with NPDES requirements

Evaluation and design of adequately sized stormwater management facilities

Review and assessment of accuracy of cost estimates for design, construction, andinstallation of treatment facilities proposed in SWM plan

Recommendation of appropriate maintenance task associated with treatment facilitiesdesigned

M&E has assembled a team of professionals committed to provide the best available talent for the nature of work to be performed, and available as needed to support the programrequirments. Specific team members will be assignedbased on the requirements of the specific project. M&E’s team includes environmental engineers, water resource engineers, civil engineers, design engineers, planners,hydrologists, hydraulic engineers and hydraulic/hydrologicand water quality modeling experts. The team memberslisted in this submittal are available to provide services as needed. Although the team does not foresee resource constraints, M&E has many other qualified professionalswith relevant experience who can be made available onshort notice. With more than 860 staff nationwide, Metcalf

& Eddy has more than adequate resources available to meet the needs of SCVURPPP’s assignments.

M&E demonstrates its interest,availability, and commitment for inclusion on SCVURPPP’s list through:

Committing its best available talent

Applying proven expertise instormwater management

Employing effective projectmanagement

Implementing QA/QC procedures

M&E commits to meeting or exceeding SCVURPPP’s requirements as described in thisrequest by providing:

Statement of interest, availability, and commitment 2

Specialized experience. M&E’s experience aligns with the expressed needs of SCVURPPP. The firm provides comprehensive support—from preliminary siteassessments through management plans, design, and regulatory compliance to advising on maintenance associated with treatment facilities.

Professional past performance. M&E has proven its ability to deliver expert professional technical service through its work on environmental projects at many sites.More than 80 percent of its business comes from repeat clients. M&E’s clients knowthe company performs successfully, saving them time and money.

Qualifications. M&E offers a highly successful management team for this contract,with a firm understanding of SCVURPPP’s objectives and procedures. This translatesdirectly to low risk performance—immediate start-up, sustained customer relationships,and high-quality service delivery.

Project management M&E project management is based on a formal training program and incorporates severalelements that allow implementation of a controlled, organized, and effective project. With trained staff and the available project management tools, M&E can manage several task orders or projects running concurrently. Major elements of M&E’s project managementprogram include:

Planning and project control tools

Accurate cost control systems

Constant maintenance of the project schedule

Careful tracking of project documents

Rigorous quality control that fulfills the requirements of the plans and specifications

Health and safety philosophy of zero tolerance for accidents and out-of-complianceactivities

The foundation of a well-run project, especially one involving multiple task orders or assignments, is the master schedule. The project manager initially prepares the masterschedule with input from all parties. It is important that the schedule is fair to all parties andan accurate representation of how M&E will execute the project. The schedule incorporatesall aspects of the project.

Quality assurance/quality control and documentation A variety of technical documents will be prepared under this work. M&E will implement a document review and approval cycle that incorporates internal and external comments at the appropriate points in the document preparation and production cycles. Highly qualifiedsenior-level technical peer reviewers, task leaders, and the project manager will perform internal reviews. The project manager will coordinate the incorporation of the client’s review comments. All documents will be subjected to final quality control checks in accordance withMetcalf & Eddy’s ISO 9001:2000 procedures before the formal release of any publications.

AppendixProof of training

Metcalf & Eddy’s key personnel available for SCVURPPP’s assignments are well-versed in best management practices for managing stormwater and in related subjects such as modeling. Their credentials in these areas include ongoing training, professional papers, and serving as instructors for professional workshops. This appendix presents the following proofof the training received and presented by key M&E team members:

Certificates of training for Tim Ormond, Scott Durbin, and Mohammed Ibrahim

Website pages describing a Bay Area stormwater management workshop being offered by Jim Sullivan

Title slides of presentations and workshops offered by Jim Sullivan in conjunction with Caltrans projects

Proof of a California Water Quality Association workshop attended by Manjit Saini

A professional paper on stormwater BMPs, authored by Tim Ormond and Jim Sullivan,which will be presented at StormCon on July 25, 2006

Cover sheet for the masters thesis presented by Uday Khambhammettu on “Evaluation of Upflow Filtration for the Treatment of Stormwater”

In addition, on July 24, Mr. Ormond will be taking a course on low impact development. A description of the course is shown below:

LID Principles and Implementation: A Hands-On Approach Full Day WorkshopMonday, July 24, 2006 8:30 a.m. – 4:30 p.m. 0.5 Continuing Education Unit

Course DescriptionConsidered a new approach to stormwater management, Low Impact Development (LID) hasfirmly established itself over the past few years as a powerful component in the stormwater management toolkit. Known also as environmentally sensitive stormwater management andsustainable urban drainage systems, LID seeks to minimize the impact of stormwater in newdevelopment and redevelopment, restore and protect ecosystems, and reduce the financialburden of construction and maintenance of stormwater management infrastructure.

While certification of his completion will not be available at the time of this submission, M&E would be happy to provide SCVURPPP with a copy of this certificate once it is received.

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1

CREATING THE PERFECT MEDIA FILTER BMP: DESIGN CHALLENGES IN THE CALTRANS BMP PILOT PROGRAM FOR LAKE TAHOE

Timothy Ormond, Metcalf & Eddy, San Francisco, CA Dipen Patel, Office of Water Programs, California State University Sacramento, Sacramento, CA

Julie Myers, Caltrans Headquarters, Sacramento, CA James Sullivan, Metcalf & Eddy, Orange, CA

ABSTRACT

The California Department of Transportation (Caltrans) is in the process of evaluating new technology storm water BMPs through its pilot study program, with the goal of meeting their NPDES requirements by implementing the most effective BMPs. A number of these pilot BMPs are being implemented in the Lake Tahoe watershed, where water quality and clarity have been progressively deteriorating.Determined to stop the deterioration in water quality, the Lahontan Regional Water Quality Control Board has issued an approved Basin Plan which places strict effluent limits on urban runoff with the goal of improving the clarity of Lake Tahoe. These effluent limits require an innovative approach as traditional BMPs, such as detention basins and bio-swales, have not been effective in attaining these limits. For the Lake Tahoe pilot program, Caltrans is currently evaluating the effectiveness of media filter basins. This treatment process is an adaptation of the Austin Sand Filter. Rather than using conventional sand, three other types of adsorption media (limestone, activated alumina, and iron-modified activated alumina) are being evaluated as filter material. Media filters have been implemented in various municipalities throughout the U.S. for storm water treatment and most include similar criteria for the basin design. The Caltrans media filter pilot program involved the evaluation of various design configuration options in order to satisfy standard criteria while providing a basis for future Caltrans-specific design criteria, including the cold-weather climate of Lake Tahoe. Design parameter variations which were investigated included basin geometry, sedimentation chamber size, water depth, media depth, excavation depth, underdrain configuration, basin filtering time, and outlet restriction design.Sensitivity analyses were conducted to determine the affects of various design parameters. Since there were several types of media being investigated for this pilot study, and the type of media was not known during the design phase, the method for controlling the outflow rate for a range of hydraulic conductivities was also evaluated and incorporated into the design. As a result of these investigations, media filter basin designs were developed which satisfied standard design methods while meeting the specific needs of Caltrans.

2

INTRODUCTION

Renowned for its natural beauty, stunning clarity and deep cobalt blue water, Lake Tahoe is a unique national treasure located in the Sierra Nevada mountains. This remarkable alpine lake is of national and international significance by virtue of its size, depth, and clarity, coupled with its magnificent scenic setting. At a depth of 505 meters (1,657 feet), Lake Tahoe is the second deepest lake in the U.S. and the tenth deepest in the world. The watershed geology, large volume, limited drainage area, and low water temperatures are largely responsible for Lake Tahoe’s sparse algal population and resultant clear waters; few nutrients are naturally available to propagate algal populations.

However, human development in the Tahoe Basin over the last five decades has been threatening Lake Tahoe. The lake has been experiencing steadily increasing algal growth and a progressive reduction in clarity believed to be caused by increased nutrient loading from streams, atmosphere and groundwater.

It is estimated that the lake has lost approximately 33 feet of transparency over the last 27 years.

LAKE TAHOE WATER QUALITY ISSUES

The Secchi disk depth is one common measure of optical clarity in lakes. It is simply the depth at which an 8 or 10-inch white disc disappears from view at the surface when lowered into the water. The University of California at Davis – Tahoe Research Group conducts clarity readings at Lake Tahoe every ten days utilizing a Secchi disk. In 1968, when clarity readings began, scientists could see the Secchi disk into the lake at over 100 feet. Sedimentation (deposits of dirt and small debris) as well as algal growth are thought to be the primary factors that have led to the decline of Lake Tahoe's clarity over the past three decades.1 In fact, the lake has been losing about a foot of clarity each year. As seen in Figure 1, the depth at which the Secchi disk can be seen from Lake Tahoe’s surface varies somewhat from year to year but generally has been decreasing over the decades.

60

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3

Lake Tahoe Basin Plan and Effluent Limits

The primary responsibility for the protection of water quality in California rests with the State Water Resources Control Board (SWRCB) and nine Regional Water Quality Control Boards (RWQCB). The State Board sets statewide policy for the implementation of state and federal laws and regulations. The Regional Boards adopt and implement Water Quality Control Plans (Basin Plans) which recognize regional differences in natural water quality, actual and potential beneficial uses, and water quality problems associated with human activities. The Lahontan Regional Water Quality Control Board (LRWQCB) is responsible for the Lake Tahoe Basin under the authority of the SWRCB.

The Basin Plan for the Lahontan Region is not merely an abstract set of goals and policies; it is the basis for the Regional Board's regulatory program. The Plan sets forth water quality standards for the surface and ground waters of the Region, which include both designated beneficial uses of water and the narrative and numerical objectives which must be maintained or attained to protect those uses. It identifies general types of water quality problems which can threaten beneficial uses in the Region. It then identifies required or recommended control measures for these problems.

The Porter-Cologne Water Quality Control Act of the California Water Code defines “water quality objectives” as the allowable “limits or levels of water quality constituents or characteristics which are established for the reasonable protection of beneficial uses of water or the prevention of nuisance within a specific area.” Thus, water quality objectives are intended to protect the public health and welfare, and to maintain or enhance water quality in relation to the existing and/or potential beneficial uses of the water. The objectives, when compared to future water quality data, will also provide the basis for detecting any future trend toward degradation or enhancement of basin waters.

The Lahontan Region Basin Plan has identified that surface runoff is the principal controllable source of pollutants affecting Lake Tahoe. The Basin Plan also lists specific storm water effluent limitations for both surface water discharges (Table 1) and runoff discharged to infiltrations systems (Table 2).

Table 1. Surface Discharges

ConstituentMaximum

ConcentrationTotal Nitrogen as N 0.5 mg/l Total Phosphorus 0.1 mg/l Total Iron 0.5 mg/l Turbidity 20 NTU Grease and Oil 2.0 mg/l

Table 2. Runoff Discharged to Infiltration Systems

ConstituentMaximum

ConcentrationTotal Nitrogen as N 5.0 mg/l Total Phosphorus 1.0 mg/l Total Iron 4.0 mg/l Turbidity 200 NTU Grease and Oil 40 mg/l

4

Caltrans NPDES Permit Requirements

Storm water discharge regulations adopted by the United States Environmental Protection Agency (USEPA) establish storm water permit requirements under the National Pollutant Discharge Elimination System (NPDES) Program. The California Regional Water Quality Control Boards have implementing authority to issue NPDES permits to control discharges into the waters of the State.

The California Department of Transportation (Caltrans) owns and operates highway systems, roadway maintenance facilities, snow storage facilities, and other properties within the Lake Tahoe Basin. These properties are typically impervious surfaces subject to intensive vehicular use. Contaminants present in storm water discharged from these roadways and facilities originate from motor vehicles, highway and bridge maintenance activities, winter snow and ice control activities, eroded cut and fill slopes, earthen roadside drainage, construction activities, illegal roadside dumping, spills, atmospheric deposition, and landscape maintenance activities. These contaminants can be described by seven categorical descriptions: (1) metals (e.g., copper, lead, zinc); (2) recalcitrant organic substances (e.g., petroleum products, paints, pesticides); (3) salts; (4) sediment; (5) nutrients (e.g., nitrogen, phosphorus); (6) litter, trash and debris; (7) other miscellaneous toxic contaminants.

In July 1999, the SWRCB issued a system-wide NPDES permit to Caltrans which included requirements to both research and implement best management practices (BMPs) and comply with the basin plans of the various Regional Water Quality Control Boards. The Basin Plan of the LRWQCB included separate numeric effluent limits for surface discharges and runoff discharged to infiltration systems as presented above. These values therefore comprise the benchmark for treatment methodologies. By 2008, Caltrans is required to meet the stringent limits for these constituents.

Caltrans holds responsibility for more than 500 storm water discharge points in the Lake Tahoe Basin.Caltrans has examined the quality of the water draining from its properties. Between 2000 and 2003, samples of runoff from both rain and snowmelt were collected at eight sites around the lake. Analysis of the samples provided a baseline characterization of the constituents that are specifically limited by the NPDES permit. The numbers underscore a difficult challenge. The average turbidity of the untreated runoff water was 477 NTU (nephelometric turbidity units); as indicated above, for surface discharges, it will have to be reduced to 20 NTU by 2008. The total nitrogen content will have to be lowered from 2.7 mg/L to 0.5 mg/L. Total phosphorus will have to be reduced from 2.1 mg/L to 0.1 mg/L. Total iron content must drop from 17.7 mg/L to 0.5 mg/L. And contamination from oil and grease will have to decrease from 18 mg/L to 2.0 mg/L.

CALTRANS LAKE TAHOE PILOT PROGRAM

With runoff sampling and analysis ongoing, Caltrans developed and implemented a plan to conduct bench-scale, small-scale and full-scale pilot testing of different types of treatment processes. Laboratory tests were conducted on more than 20 combinations of treatments, including sedimentation, filtration (using assorted media), coagulation (using several chemicals), and ion exchange processes.

Both “low technology” and “high technology” storm water treatment systems were tested. Low technology systems are those that have minimal or no power-driven mechanical equipment and controls and require minimal operation and maintenance labor. High technology systems, on the other hand, may include substantial power-driven mechanical equipment and controls and require significant operation and maintenance labor. The low technology systems investigated included sedimentation (with and without chemical addition) and filtration using various types of media (with and without prior

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sedimentation and/or chemical addition). Results from the small-scale pilot testing3,4,5 warranted the development of full-scale BMP pilot projects, including full-scale media filter pilots along State Highway 50 for which the monitoring phase is nearing completion, and the full-scale media filter pilot retrofits along State Route 267 discussed below.

FULL-SCALE MEDIA FILTER PILOT DESIGNS

A siting study was conducted in June 2004 of over 100 potential sites for additional full-scale media filter pilots in the Lake Tahoe Basin. After evaluating and ranking these sites based on a number of factors, four existing Caltrans infiltration basin sites were selected to be retrofitted as media filter basins. The existing infiltration basin sites had the added benefit of a reduced permitting timeframe, compared to new sites, thereby allowing an expedited design and construction process. The four media filter basin pilot sites are located at Caltrans outfalls along State Route 267, just south of Brockway Summit (elevation 7,720 feet), approximately 1.1 mile north of Lake Tahoe, as shown in Figure 2.

Figure 2. Project Location

Storm water media filters are typically two-chambered systems, consisting of a pretreatment basin and a filter bed filled with sand or another absorptive filtering media. These designs developed for the media filters are an adaptation of the partial sedimentation Austin Sand Filter (ASF).

Because of the large amount of traction sand applied in the Tahoe area, a sand trap forebay had already been incorporated into each infiltration basin that was retrofitted. The storm water runoff therefore passes through a total three chambers in succession. First, it pools in the forebay, where traction sand

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washed from the road can settle out. Then it passes through a gabion wall (a wire cage filled with rocks ranging from 4 inches to 12 inches in diameter). Next, it is funneled through a flume so the flow can be measured to monitor the test operations. When it exits the flume, the water flows down a rock slope protection incline and into a sedimentation chamber, where heavier particles settle out before the water can seep through another gabion wall. The water then reaches the media filter basin, which is about 3 feet deep.

Finally, the water seeps through several layers of material that constitute the bottom of the basin. The first layer has 6 inches of washed sand, which is underlain with geotextile fabric. Next is the filter media layer, which is 12–24 inches thick. The bottom layer consists of 12–18 inches of gravel underlain with an impermeable membrane to prevent exfiltration from the basin as well as groundwater intrusion during the pilot study. Encased in the gravel layer is an underdrain system made of 6-inch-diameter perforated PVC pipe that collects the filtered runoff and delivers it to an outflow pipe, where flow is again measured. A butterfly valve in the outflow pipe was incorporated into the design to regulate the time the water is retained in the basin, and consequently, the discharge rate. Typically the water will be retained for 24 hours, with maximum retention times of up to 72 hours. An isometric rendering of the media filter pilots is shown in Figure 3.

Figure 3. Isometric View of Pilot Media Filter

The size of the filter bed itself depends on the drainage area it serves. The pilot test basins, which range in volume from 1,770 cubic feet to 3,230 cubic feet, are designed to handle runoff from drainage areas ranging from 21,100 square feet to 39,100 square feet as shown in Table 3.

Generally the surface area of the media filter is approximately 3 percent of the drainage area. However, one of the test installations differs markedly in this regard. Space is often limited along Caltrans’ rights of way, particularly in mountainous terrain like the Lake Tahoe Basin. To address this issue, one of the pilot sites was designed with a filter bed footprint only one-third of the standard design. This will also

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enable the research team to evaluate both the effectiveness of smaller installations and the effects of reduced area on the lifetime of the filter medium.

Rather than using conventional sand, three other types of adsorption media are being evaluated as filter material, based on the results of the small-scale studies. One pilot installation is using limestone sand, another uses activated alumina, and two are using iron-modified activated alumina. The pilot tests will also help determine how often the media will have to be replaced (it is expected to be about every five years).

Table 3. Pilot Media Filter Basin Characteristics

Basin Filter Media DrainageArea (ft2)

Water Quality Volume (ft3)

Filter Bed Area (ft2)

Ratio of Filter Bed Area to

Drainage Area

1 Limestone 31,500 2,600 903 0.029

2 Activated Alumina 21,100 1,720 597 0.028

3Iron-Modified

Activated Alumina 26,700 2,230 772 0.029

4Iron-Modified

Activated Alumina 39,100 3,260 313 0.008

DESIGN CHALLENGES

The project area is located in a mountainous forested region near Brockway Summit. Elevations at the sites range from approximately 6,950 to 7,150 feet above sea level and ground slopes in the project area generally range from 15% to 50%. The climate of the project area is typical of the Sierra Mountains with warm summers and cold, snowy winters. The average annual precipitation is approximately 32 inches, approximately 80% of which occurs as snowfall, sometimes equating to a depth of 15 feet or more.

In addition to the difficulties posed by the climate and terrain, a number of other challenges were encountered during the design phase of the pilot media filters, including:

Expedited project schedule in light of 2008 discharge limits, Short construction window in the project area (mid May through mid October), Design changes to existing infiltration basins needed to be minimized as the sites may be reverted back to infiltration basins after completion of the media filter pilot study, Design parameters at all four sites needed to be made as consistent as possible in order to minimize variables during testing, Basin designs had to be completed prior to finalizing the filter media types, as small scale testing of the media had not been completed. Since the type of media impacts the hydraulic

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conductivity of the system, operational flexibility assuming a range of hydraulic conductivities had to be incorporated into the design.

In order to retrofit the existing infiltration basins with the media filter basins, the infiltration basins were excavated to accommodate the media filters while maintaining the dimensions of the infiltration basins as much as possible. Excavation depths were limited to 5 feet. Design of the media filters followed an iterative process to ensure the design parameters for all four basins were as consistent as possible.Maintaining consistent design parameters will help to minimize variation during the monitoring phase of the project. The design parameters of particular importance included sedimentation chamber volume, length to width ratio, filter bed dimensions, and the water depth above filter bed. A flow chart summarizing the design approach is presented in Figure 4.

Figure 4. Process for Sizing Media Filter Retrofits

The basin design included an outlet restriction located downstream of the filter bed, to allow the water quality volume to empty in 24 hours. Because the type of filter media had not been determined until late in the design process, in order to provide operational flexibility for the media filter basin, the underdrain system was designed to be controlled by a 4-inch butterfly valve. The butterfly valve allowed the rate at which the basin drains, to be adjusted as the hydraulic conductivity of the filter media decreases over time. Flows in excess of the media filter capacity will discharge from the filter basin through a spillway. A hydraulic computer model was used to size the outlet control valves and the spillway for each basin.

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The hydraulics of the filter media and outlet valve were analyzed by equating the flow from the filter basin with the orifice flow. Equating this flow relationship resulted in a quadratic equation which was solved using a spreadsheet. The orifice size was then determined such that the system would drain within 24 hours after the end of a storm. As the hydraulic conductivity of the media decreases, the drain time increases and the orifice size would need to be increased in order to maintain the same drain time. This would typically only become a concern for vector control when drain times exceed 72 hours. Orifice sizes were computed for a range of drain times and media hydraulic conductivities to account for varying field conditions. The orifice sizes were then converted to corresponding settings of the butterfly valve.

SUMMARY AND CONCLUSIONS

Lake Tahoe, an irreplaceable national treasure, has been losing clarity at a rate of about one foot per year. To address water quality degradation in Lake Tahoe, the Lahontan Regional Water Quality Control Board has developed stringent discharge limits which will be implemented in 2008. Caltrans, which has responsibility for more than 500 storm water discharge points around Lake Tahoe, is piloting innovative solutions to meet these discharge limits. The Caltrans pilot program includes four full-scale pilot media filter basins which were sited and designed between June 2004 and March 2005 and constructed along State Route 267 between June and October 2005 (Figure 5).

Figure 5. Pilot Media Filter Construction

A number of design challenges were encountered due to an expedited project schedule and a range of design constraints, all occurring in the rigorous Lake Tahoe environment. A design was accomplished which met these constraints while providing operational flexibility for a range of media filter types and maintenance considerations. These pilot installations are now being used to test the treatment effectiveness of limestone sand, activated alumina, and iron-modified activated alumina as filter media. The results of the pilot project will ultimately help to meet the new surface discharge limits and preserve Lake Tahoe as a national treasure.

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REFERENCES

1. Alan D. Jassby, Charles R. Goldman, John E. Reuter and Robert C. Richards. Changes in Water Clarity at Lake Tahoe. Department of Environmental Science & Policy, University of California, Davis, June 2000.

2. University of California at Davis, Tahoe Environmental Research Center. Lake Tahoe Clarity Improved Slightly in 2004, UC Davis News Service, June 30, 2005.

3. Caltrans. Lake Tahoe Storm Water Small-Scale Pilot Treatment Project, Jar Test Results and Summary Report. District 3, Lake Tahoe Basin Document ID: CTSW-RT-03-063.33.41. June 2003.

4. Caltrans. Lake Tahoe Storm Water Small-Scale Pilot Treatment Project, Phase I Report. District 3, Lake Tahoe Basin Document ID: CTSW-RT-03-042. August 2003.

5. Caltrans. Lake Tahoe Storm Water Small-Scale Pilot Treatment Project, Phase II Report. District 3, Lake Tahoe Basin Document ID: CTSW-RT-03-079.31.37. December 2003.

Cover sheet for masters thesis: “Evaluation of Upflow Filtration for

the Treatment of Stormwater”

EVALUATION OF UPFLOW FILTERATION FOR THE

TREATMENT OF STORMWATER

by

UDAY KHAMBHAMMETTU

A THESIS

Submitted in partial fulfillment of the requirements for the degree of Master of Science in the Department

of Civil and Environmental Engineering in the Graduate School of

The University of Alabama

TUSCALOOSA, ALABAMA

2006