Dublin San Ramon Services District - Dougherty Valley Reservoir 200B - Design of structural elements associated with 1.5mg prestressed concrete potable water reservoir. Client elected to use Performance Specification approach for design

Monte Vista Water District, Montclair, CA - Aquifer Storage and Recovery Well No.30: Structural design of 32'x32' concrete masonry building. Project was performed under a very aggressive schedule, completed within four weeks.

City of Livermore - Zone 1 Water System Improvement: Structural design of a masonry block pump station and prestressed concrete water storage reservoir.

Montebello Land and Water Company - Well No 14 Pump Station: Structural design of a concrete masonry building to house the equipment associated with this well head and pump station.

Fountain Valley Pump Station - Upgrades: Preliminary design for seismic upgrade and minor modifications for two existing pumps stations.

Zoe Avenue Pump Station: This 34-mgd pump station consists of a large wet well with the bottom invert depth at 50 feet below grade. Stormwater pumps will be contained within a 2,360 sq. ft., masonry block building constructed atop the wet well. The pump station wet well walls are constructed of 36-inch diameter cast-in-drilled-hole (CDIH) piles with an internal coating of shotcrete.

Moulton Niguel - Crown Valley Highland Pump Station: Structural design of a 400 sq. ft., below grade, concrete vault housing three recycled water pumps and associated instruments and controls.

Moulton Niguel - Alicia Recycled Water Pump Station: Structural design of a 770 sq. ft., concrete masonry building to house two recycled water pumps and associated instruments and controls.

North Open Space Well: Structural design of 850 sq. ft., masonry block building to house a well head pump station. Building was designed and constructed to look like a house.

South Montebello Irrigation District - Well No. 7: Structural design of a concrete masonry building to house a 700-BHP gas engine and pump system associated with this well head pump station.

Diablo Hills Reservoir: Preliminary design of a below grade cast-in-place reservoir for the Contra Costa Water District. This structure was located beneath the 8th hole of an existing golf course.

Montebello Land and Water Company - Well No 14 Pump Station: Structural design of a concrete masonry building to house the equipment associated with this well head and pump station.

Calleguas Water District - Water Storage Reservoir: Preliminary design for the structural elements of this 5.0-mg water storage reservoir. Structural evaluation included alternatives for prestressed concrete, cast-in-place concrete and steel. Both circular and rectangular configurations were considered. Provided technical consultation during the final design phase of the project.

City of Pittsburg, Water Storage Reservoir: Preliminary design for replacement of an existing 6-mg water storage reservoir at the WTP. The design included two prestressed concrete reservoirs. A 1-mg reservoir was used as finished and backwash water storage, while a second 5-mg reservoir was located in the footprint of the existing 6-mg tank. The design required two reservoirs to minimize the impact on the WTP.

Department of the Navy, Camp Pendleton - $8.5 million construction: Structural modifications to seven existing WWTPs and two existing lift stations for the Navy in Camp Pendleton, CA. Upgrades included addition of clarifiers, digesters and pump stations. Additional modifications include improving accessibility to various process units and upgrading existing operations buildings. Currently providing engineering services during construction.

City of Mesa, AZ, Gilbert/Mesa South WRF Lift Station: Structural design of a 14.33 mgd reclaimed water lift station. This facility included circular equalization basins, a 30'x100'x40' deep dry well and provisions for future expansion, and addition of treatment facilities.

City of Seattle, Tolt Water Filtration Plant: Structural design of a 120-mgd water filtration plant located on the Tolt River east of Seattle. Process elements of this design/build/operate project consisted of ozone, flocculation, and filtration basins. Supporting facilities included a 7.4 mg buried concrete clearwell, chemical storage, and plant operation facilities.

CCWD, Bollman WTP Expansion: Structural design required to add ozone treatment to the existing Bollman WTP in Contra Costa County. Specific structures included ozone contactors, ozone generation buildings, various foundations, secondary containment for new chemical storage areas, and a pier foundation for the proposed backwash tank. This project included a special seismic design criteria specifically tailored for CCWD's projects and seismic upgrade of an existing 11-mg buried concrete reservoir.

City of Mt View, Crittenden Pump Station: Structural design of a concrete, CMU pump station for this 600-hp pump station and set sell facility. The project included a standby power generation and fuel storage facilities.

Leucadia Water District, Bataquitos Pump Station: Structural design of a concrete block building to house electrical and control equipment for an existing 750-hp pump station.

Vallicitos Water District, Twin Oaks Reservoirs: Technical review of two 33 mg prestressed concrete reservoirs for water storage. Technical review of these circular prestressed concrete reservoirs was conducted on the final design documents for the project. Emphasis was focused on the seismic design elements of the project.

City of Southgate, Westside Reservoirs & PS: Structural design of two above grade steel water storage reservoirs along with an associated pump station. Stand-by power and chemical storage were included in the project.

City of Allentown, PA, WWTP Upgrades: Structural design for various upgrades to an existing WWTP designed in the 1920s. The project was located in a floodplain and required the use of rock anchors to prevent floatation of the basin foundations.

City of Wallingford, Overflow Reservoir: Structural design of a two celled, buried concrete reservoir.

VWD, Mt. Bell Reservoir Evaluation: Seismic evaluation of an existing bolted steel reservoir.

SCVWD, Reservoir Evaluation: Seismic evaluation of two existing above grade water storage reservoirs. Both reservoirs were approximately 3 mg and required recommendations for mitigating potential damage caused by the design seismic event.

City of Redlands, 1350 Zone Reservoir: Structural evaluation and design of a 3.9 mg, prestressed concrete water storage reservoir. Evaluation included alternatives for prestressed concrete, cast-in-place concrete, and steel.

Calleguas Water District, Springville Reservoir: Structural design of a cast-in-place access vault for the 48-inch outlet pipeline connection. Special attention was necessary to minimize the possibility of undermining the reservoir embankment and access roadway.

City of San Buenaventura, WRF Upgrades Project - $11 million construction: Seismic evaluation of existing structures within this 14-mgd WWTP. Due to the close proximity of the facility to an active fault, the design level earthquake for the project was approximately 50 percent higher than typical UBC criteria. Modifications were designed to upgrade the existing structures to withstand the design level earthquake. Provided engineering services during construction.

City of Livermore, Pump Station Technical Review: Technical review of the structural design portion of a proposed concrete masonry pump station.

City of Tustin, Tustin Desalter: Structural design of a concrete masonry building for housing a desalting facility. The project included chemical storage, wet-well, and a mechanical room for the RO equipment.

Chino Basin Municipal Water District, Carbon Canyon WWTP: Structural design of upgrade to the existing WWTP. Included addition of a below grade, cast-in-place concrete storage reservoir and a 24 inch diameter pipeline crossing at an existing highway bridge.

City of Glendale, CA, Groundwater Remediation: Structural design of facilities associated with groundwater remediation. Elements included seismic anchorage, operations facilities, chemical storage, groundwater well vaults, and a 240-foot, clear span pipe crossing over an existing water channel. Required mat foundations to accommodate potential settlement from the existing unconsolidated soils.

City of Vallejo, Lake Chabot Spillway: Structural design of the new concrete spillway for Lake Chabot. Elements of the spillway included a required critical water elevation to maintain proper function of the water treatment facilities at Marine World Africa USA.

Santa Clara Valley Water District, Water Quality Regulation Compliance Project: Preliminary design for modifications to three WTPs. Specific project elements included recommendations for seismic upgrades to the WTPs and mitigations for limiting potential damage caused by a potentially active, 300-foot-deep landslide under the Penitencia WTP. Additional upgrade elements included the addition of ozone facilities and additional chemical storage facilities.

Alameda County Water District, WTP No. 2 (30 mgd) - $30 million construction: Structural design of a WTP located in the seismically active south San Francisco Bay Area. The facilities include an operations building, separately housed chemical storage, and ozonation system. Unique aspects of this project included the process block concept (common wall construction) in which all of the basins were incorporated into one structure, and the special architectural requirements necessary for the residentially sensitive area in which it was being constructed. Provided engineering services during construction.

City of San Francisco, San Andreas WTP Expansion Phase 2: Services during construction for the expansion and modification of the existing WTP. Expansion included addition of ozone treatment, capacity increase from 120 to 180 mgd, and an 8 mg prestressed and vertically post-tensioned concrete water storage reservoir. A unique requirement of this project was the 0.7g lateral force requirement due to its close proximity to the San Andreas Fault.

City of Pittsburg, Water Storage Reservoir: Pittsburg WTP reservoir repair involving improvements to a 6-mg reservoir, with a wooden roof and concrete floor and sides, originally constructed in 1953. The hopper-bottom reservoir was leaking about 4,000 gal/min through cracks in the floor prior to the repair.

Contra Costa Water District, Reservoirs and Pump Station: Structural design of various water storage reservoirs and their associated pump stations for CCWD and developers within the District's management area. Projects include:

City of Pleasanton, Kottinger Ranch Reservoir: Structural design of a welded steel, above ground water storage reservoir with a concrete masonry pump station.

City of Pleasanton, Canyon Meadow Pump Station: Structural design of a concrete masonry building for this 6-mgd pump station.

City of Vallejo, Shadow Ridge Pump Station: Structural design of a concrete masonry structure for a 60-hp pump station.

City of Rialto, Rialto Reservoir: Structural design of a 6.0 mg, partially buried, vertical post-tensioned, prestressed concrete water storage reservoir.

City of Poway, Poway Pump Station: Structural review of the design for a concrete masonry pump station.

City of Vallejo, Clearpointe Reservoir: Engineering services during construction of an above ground, 1.6 mg, shotcrete, prestressed water storage reservoir.

City of Pittsburg, WTP Expansion: Engineering services during construction for the WTP expansion from 8 to 16 mgd.

City of Santa Cruz, Neary Lagoon Pump Station: Engineering services provided during the construction of an outfall structure, a new 150 mgd, 750-hp pump station with a full stand-by power facility, and a seawall. The majority of the project was next to the municipal wharf in Santa Cruz.

Chinese Petroleum Corporation, Oil Storage EIR: Seismic evaluation portion of the environmental impact assessment for construction of ten welded steel reservoirs to store 211 mg of petroleum products in Taiwan.

City of Fontana, WWTP Preliminary Design: Predesign for the Fontana WWRF, a proposed 30-mgd WWTP in Southern CA. Included measures to mitigate potential impacts of a contaminated site.

City of Benicia, Reservoir Upgrade: Seismic evaluation and repair of an existing 2.3-mg water reservoir. The reservoir is an above grade, steel tank originally designed and built in 1970. Replacement of the ringwall foundation was required as part of the seismic mitigation measures.

City of San Bernardino, Devil Canyon WTP: Preliminary design of a 20-mgd WTP on a site divided by the San Andreas Fault. Preliminary information provided anticipated ground accelerations in excess of 1.0g. The structural portion of the work included estimating preliminary sizes of this 20 mgd, modular design water treatment facility.

City of Corona, Water Storage Reservoir: Structural engineering for the design of a 4.7 mg, prestressed concrete reservoir.

Oakley Water District - WTP Upgrades

Dublin-San Ramon Services District, CA, Seismic Evaluation: Seismic evaluation and design of upgrades for four steel reservoirs. The reservoir sizes ranged from 0.5 mg to 4 mg.