Phoenix

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GHD's Arizona Office delivers quality engineering projects to Arizona and surrounding states.

With an emphasis on water, wastewater, survey and civil engineering, our staff works with municipal, institutional and educational clients. GHD Environmental Services, a separate entity with a State of Arizona “Class A-General Engineering” contractor’s license (ROC 264121), provides water/wastewater system operations and maintenance services.

We focus on our clients. All of our work is directed toward developing and maintaining excellent relationships and delivering a successful project.

Overview
Projects
Related GHD Service Lines / Sectors
Key People

Our services include:

Water & Wastewater Modeling & Plant Design
Membrane filtration technology
Odor control facilities
Detailed hydraulic evaluations of sanitary sewer and water distribution systems
Water and wastewater master plans and standards
Hydraulic surge and transient analysis
Deep water production well sites and well water blending strategies
Pump stations and water storage reservoirs
Anoxic-oxic biological nutrient removal wastewater processes
Small and large diameter water and sewer line design
Disinfection system technology
Water and wastewater treatment from influent to effluent

Civil Engineering & Survey
Stormwater & flood control projects
Water & reclaimed water supply, storage & distribution
Wastewater collection systems
Urban streets, rural roads and highways, corridor studies
Topographic survey & mapping, right of way plans, construction staking
Site grading, drainage, paving, utility coordination, parking lots
Pipeline easements, as-builts, record of survey plans

Bidding
Bidding & contractor selection
Construction administration
Construction inspection
Equipment startup
Construction closeout
Construction specifications

Municipal Engineering
Contract city engineer
Contract public works director
Regulatory assistance
Utility operations
Infrastructure projects

Water/Wastewater Operations & Maintenance
Regulatory compliance
Facility rehabilitation
Facility maintenance

Asset Management

Security Master Planning

For more information, please contact:

Peter Chan, PE
7600 North 16th Street Suite 205
Phoenix AZ 85020
T: 1 602 216 7200 | F: 1 602 216 7201

Quintero 150,000-GPD Wastewater Treatment Facility

GHD designed this 150,000 ggpd WWTF using a sequencing batch reactor-activated sludge process, which included nitrification-denitrification to achieve a class A⁺ finished effluent.

Elements of design included influent flow metering, a fully enclosed duplex pump station, fine screens, first and second stage aeration for nitrification and denitrification, clarification, and aerobic digestion. Sludge handling was accomplished through centrifuge dewatering. Odor and noise abatement was incorporated through the total enclosure of headworks screens, aeration and clarification elements, sludge processing, air blowers, and electrical system inside a building. The design included a bulk liquid sodium hypochlorite disinfection system for the final stage of treatment. Finished effluent is used to irrigate golf turf.

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91st Ave Treatment Plant

The 91^st Avenue WWTP Chlorination Improvements project involved the replacement of a 120-ton bulk chlorine system with a system consisting of 32 one-ton chlorine cylinders. The plant has a treatment capacity exceeding 180 mgd. The existing chlorination equipment and piping was replaced while the plant was in full and normal operating condition. The plant’s treated effluent is used at the Tres Rios Wetlands and as cooling water for the Palo Verde Nuclear Generating Station.

The project also involved the development and coordination of the Maintenance of Plant Operation (MOPO) procedures. The chlorination of the plant effluent had to be maintained at all times during construction. The project also included building structural, electrical, and HVAC modifications. The equipment installed included the following:

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Scorpion Bay Wastewater Treatment Facility

The new Scorpion Bay Marina is located on the west coast of Lake Pleasant. The marina includes more than 300 boat slips, a boat pumping station, restrooms, showers, and a restaurant. GHD provided permitting, design, and construction services for the marina’s wastewater treatment plant. The plant is an activated sludge facility with extended aeration and de-nitrification capability. It also includes sand filtration, chlorination and de-chlorination, and an aerobic sludge digester. All of the reclaimed water produced by the plant is stored in an above-ground steel reservoir and pumped through the marina’s irrigation system.

To enable the marina to open prior to the completion of the treatment plant, GHD also designed a temporary vault and haul system that included instrumentation and controls, secondary containment, an aeration system and an odor control air scrubber. In addition, GHD provided design and construction support for the marina’s wastewater pumping system, which uses peristaltic pumps to move flows from boats, restrooms, and the restaurant to a common wet well where they are then pumped using grinder pumps off of the marina and to the treatment facility.

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Security Master Planning, Surprise AZ

GHD recently completed the development of a Security Master Plan for all water and wastewater facilities for the City of Surprise. The City of Surprise systems include 20 water supply wells, 5 water treatment, pumping and storage facilities, 2 wastewater reclamation plants, and wastewater collection and water distribution systems serving a population of 125,000 in the Phoenix metropolitan area.

The Security Master Plan included:

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Scottsdale Booster Station

The City of Scottsdale commissioned GHD to design Booster Pump Station Number 179 (BPS179) to provide water pressure to the downtown Scottsdale area. The station serves as a dual purpose facility. It supplies potable water at a higher pressure to serve new high rise commercial and residential condominium projects. It also serves as a link to the downtown arts district. The project’s architecture complements the atmosphere of downtown Scottsdale.

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Wastewater Modeling, Scottsdale AZ

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As part of the City of Scottsdale’s broader water optimization program, the city turned to GHD to update its wastewater model. The objective was to reflect recent billing data and flow metering results as well as updated development plans and capital improvement projects.

GHD has a long history with the city, having designed more than 50 water projects within the region.

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Asset Management	Climate Change	Dams	EIA
EMS & Audits	Energy	Industrial Water & Waste	Power Delivery
Power Generation	Renewable Energy	Sustainability	Waste Management
Wastewater Treatment	Water Efficiency	Water Quality and Treatment	Water Sciences
Water Sector	Waterways & Coastal

Peter Olszewski

Peter has more than 25 years of progressively responsible technical, management and leadership experience encompassing project development and project management. He has specific experience in planning, design and construction of water distribution facilities, planning, design, and construction of wastewater collection, treatment and reclaimed water systems, studies, public involvement, and permitting.

Position: Regional Office Manager, Phoenix
Tel: +1 602 216 7200

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Peter Chan

Peter has been designing water and wastewater infrastructure projects in the southwestern United States for over 20 years. His experience includes hydraulics modeling, membrane technology, reclaimed water management, pumping/lifting station design, waterlines, sewer lines, water and wastewater process design. He is an experienced engineer who stays actively involved in new advances in the industry. His focus is on timely delivery of all project tasks.

Position: Business Group Manager, Western Region USA
Tel: 1 602 216 7200

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Bill Roberts

Bill has been planning, designing, and building water and wastewater improvements for over 14 years. His experience includes water models, sewer models, water lines, sewer lines, wells, storage tanks, disinfection, booster pumps, PRVs, lift stations, water treatment, and wastewater treatment.

Position: Senior Project Manager
Tel: 1 602 216 7200

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Kerry Brough

Kerry has nearly 40 years of experience in the operation, engineering, maintenance and management of water and wastewater facilities. He was an Operations Manager and Utility Manager for multiple water and wastewater systems throughout the United States and has been a consulting engineer and utility operations and management specialist for more than 21 years. In addition, he managed his own firm providing operations, engineering and management support and consulting for water and wastewater utilities.

Position: Senior Vice President, GHD Environmental Services Inc.
Tel: 1 602 216 7200

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James Fletcher

James’ experience in water and wastewater engineering began in 2001. He currently serves as process control designer for GHD’s engineering projects. He also has experience in construction inspection and mapping. His experience includes the design of water and wastewater treatment plants, infrastructure, pump stations and sewer lift stations.

Position: Project Engineer
Tel: 1 602 216 7200

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Dave Prinzhorn

David, manager of our contract operations sub-group, GHD Environmental Services, Inc., has over 30 years of comprehensive experience in water, wastewater and environmental projects. He has been responsible for the management, design, and contract administration and construction oversight of over 300 projects for public and private clients throughout the United States. He has a technical background in wastewater treatment process engineering and design, regulatory compliance, design of utility infrastructure, and water and wastewater utility operations. David joined GHD in 2004.

Position: Vice President, GHD Environmental Services Inc.
Tel: 1 602 216 7200

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Michael Janes

Mike joined GHD in the spring of 2007 after three years in civil engineering. His background includes civil engineering for public works projects in Montana and more recently for GHD; on the City of Flagstaff Sunnyside Phase IV Improvements, the San Franciso de Asis Parish Platting & Site Improvements project in Flagstaff and Northview Lift Station in Sedona. Mike’s experience with delivering projects on-schedule and on-budget has made him a perfect fit with GHD.

Position: Project Manager
Tel: 1 928 913 8200

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Bruce Valley

Bruce is responsible for licensing, operation, and maintenance of water systems for agencies throughout Arizona, including the Arizona Department of Corrections, the Arizona Department of Transportation and the Arizona State Park System. Activities include daily direction for staff involved in the operation of water treatment facilities, production wells, community and non-community water systems, rest areas and park facilities. He provides direct oversight of water quality assurance, monitoring, sampling, regulatory and compliance issues for systems serving from 10 to 10,000 individuals per day.

Position: Water Operations Supervisor
Tel: 1 602 216 7200

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Phoenix

GHD's Arizona Office delivers quality engineering projects to Arizona and surrounding states.

We focus on our clients. All of our work is directed toward developing and maintaining excellent relationships and delivering a successful project.

For more information, please contact:

Quintero 150,000-GPD Wastewater Treatment Facility

GHD designed this 150,000 ggpd WWTF using a sequencing batch reactor-activated sludge process, which included nitrification-denitrification to achieve a class A+ finished effluent.

91st Ave Treatment Plant

Scorpion Bay Wastewater Treatment Facility

Security Master Planning, Surprise AZ

Scottsdale Booster Station

Scottsdale Booster Station

Wastewater Modeling, Scottsdale AZ

As part of the City of Scottsdale’s broader water optimization program, the city turned to GHD to update its wastewater model. The objective was to reflect recent billing data and flow metering results as well as updated development plans and capital improvement projects.

Peter Olszewski

Peter Chan

Bill Roberts

Kerry Brough

James Fletcher

Dave Prinzhorn

Michael Janes

Bruce Valley

GHD Library

GHD designed this 150,000 ggpd WWTF using a sequencing batch reactor-activated sludge process, which included nitrification-denitrification to achieve a class A⁺ finished effluent.