© 2019 by LEE & RO, Inc.

Water Infrastructure 

Public Works

Engineering Firm

Hiring !


40 Years of Service


  • Feasibility and Planning Studies

  • Facility Assessment and Rehabilitation Planning

  • Preliminary Engineering and Design Reports

  • Final Design including Preparation of Plans & Specifications

  • Preparation of Design-Build Procurement Documents

  • Cost Estimating and Life-Cycle Cost Analysis

  • Engineering and Construction Support Services during Construction

  • Construction Management / Resident Engineering

  • Facility Startup & Commissioning Assistance

  • Preparation of Operations & Maintenance Manuals

Services Provided
Professional  Resources
  • Project Managers

  • Water & Wastewater Process Engineers

  • Civil and Pipeline Engineers

  • Structural Engineers

  • Mechanical Engineers

  • Electrical Engineers

  • Instrumentation & Controls
    (I&C) Engineers

  • Design & Constructability Reviewers

  • Construction Managers

  • Resident Engineers
    & Inspectors

  • Startup & Commissioning Engineers

Markets Served/ Types of Projects
  • Water Treatment Plants

  • Wastewater Treatment & Water Recycling Plants

  • Water & Recycled Water Storage Tanks, Reservoirs, and Transmission & Distribution Pipelines

  • Water & Recycled Water Pump Stations and Flow Control Facilities

  • Wastewater Pump Stations and Trunk/Interceptor/Collection Sewers

  • Odor Containment and Control Facilities

  • Stormwater Pump Stations and Storm Drains

  • Emergency & Standby Power Generation Facilities

  • Power Distribution and Electrical & Control Systems 



The LEE & Ro Story


LEE & RO, Inc. is a full-service public works / municipal water infrastructure engineering and consulting firm.  Established in 1979 by two entrepreneurial engineers, Donald R. Lee and M. Steve Ro, the firm has served over 200 public and private sector clients under the founding principles - “Listen to our Clients” and “Provide our clients with Sustainable and Cost-Effective Solutions.”  Our commitment to quality services has served us well as over 95 percent of our business is generated from repeat clients. 


LEE & RO, Inc. takes pride in delivering practical and cost-effective engineering solutions.  Today’s engineering solutions must be “environmentally sustainable at a lower life-cycle cost.” LEE & RO, Inc. works hard to apply “Green Engineering” in all phases of engineering and design by incorporating low carbon footprint technologies and renewable resources.    


Currently, we maintain four offices in California:


City of Industry (Los Angeles HQ)

San Diego


Walnut Creek


Core Values


LEE & RO believes in the following CORE VALUES:


Pride in What We Do.  We provide cost-effective public works engineering solutions that enhance the quality of the environment and quality of living.


Integrity.  We are professionals who do right, are committed, and accountable.


Team Work.  We respect each other.  We are open-minded, share knowledge and delegate. 


Innovation.  We innovate and try to find ways to produce more with less.


Client Satisfaction.  Clients come first.  We value all clients, listen to clients, and strive to provide quality services.


Our Definition of Success. Fun, Growth, and Financial Rewards. 


Year Established


Full Service


Engineering Firm

Projects Completed



Please click on pictures below for detailed project descriptions.

Water Treatment
Wastewater Treatment & Recycling
Water Pump Stations, Wells & Reservoirs
Wastewater & Stormwater Pump Stations
Electrical and Instrumentation & Controls
Construction Management & Resident Engineering
Show More


California Cities

California Counties

State of California

U.S. Government

Public Agencies

Calaveras County Water District, San Andreas, Ca.
Calleguas Municipal Water District, Santa Clarita, Ca.

Castaic Lake Water Agency, Santa Clarita, Ca.
Central Basin Municipal Water District, Carson , Ca.
Central Contra Costa Sanitary District, Martinez, Ca.
Coachella Valley Water District, Coachella, Ca.
Contra Costa Water District, Concord , Ca.
Crescenta Valley Water District, La Crescenta, Ca.
Delta Diablo Sanitation District, Antioch, Ca.

East Bay Municipal Utility District, Oakland, Ca.

East Valley Water District, Highland, Ca.
Elsinore Valley Municipal Water District, Lake Elsinore, Ca.
El Dorado Irrigation District, Placerville, Ca.
El Toro Water District, El Toro, Ca.
Encina Wastewater Authority, Carlsbad, Ca.
Estero Municipal Improvement District, Foster City, Ca.

Inland Empire Utilities Agency, Chino, Ca.
Irvine Ranch Water District, Irvine, Ca.
County Sanitation Districts of Los Angeles County, Whittier, Ca.
Los Angeles Co. MTA, Los Angeles, Ca.
Los Angeles Unified School District, Los Angeles, Ca.
Mesa Water District, Costa Mesa, Ca.

Metropolitan Water District of So. Ca., Los Angeles, Ca.
Monte Vista Water District, Montclair, Ca.

Moulton Niguel Water District, Laguna Niguel, Ca.
Orange County Sanitation District, Fountain Valley, Ca.
Orange County Water District, Fountain Valley, Ca.
Orange County Transportation Authority, Garden Grove, Ca.
Otay Water District, Spring Valley, Ca.
Padre Dam Municipal Water District, Santee, Ca.
Paradise Irrigation District, Paradise, Ca.

Placer County Water Agency, Auburn, Ca.
Port of Long Beach, Long Beach, Ca.

Rancho California Water District, Temecula, Ca.

Rincon del Diablo Municipal Water District, Escondido, Ca.
Sacramento Regional County Sanitation District, Elk Grove, Ca.
Sacramento Regional Transit District, Sacramento, Ca.
San Diego County Water Authority, San Diego, Ca.
Santa Clara Valley Water District, San Jose, Ca.
Santa Margarita Water District, Las Flores, Ca.

South Coast Water District, Laguna Beach, Ca.
South Orange County Wastewater Authority, Dana Point, Ca.
Three Valleys Municipal Water District, Claremont, Ca.
Trabuco Canyon Water District, Trabuco Canyon, Ca.
Transportation Corridor Agency, Costa Mesa, Ca.
Upper San Gabriel Valley Municipal Water District, El Monte, Ca.
Valley Sanitary District, Indio, Ca.
Walnut Valley Water District, Walnut, Ca.
Water Replenishment District of So. Ca., Cerritos, Ca.
West Basin Municipal Water District, Carson, Ca.

West County Wastewater District, Richmond, Ca.

Western Municipal Water District, Riverside, Ca.
Yorba Linda Water District, Yorba Linda, Ca.

Contractors and Developers

Ahrens Corporation, San Diego
Catellus Urban Development Corp., Korea
Daewoo Orion Electronics, Co. Ltd., Korea
Hyundai Eng. & Const., Co. Ltd., Korea
Obayashi America Corp., Los Angeles
Shimizu America Corp., Los Angeles

SK Eng. & Const. Co. Ltd., Korea
Stanek Constructors, Inc., Escondido

Air Force, Army and Navy Bases (Various Locations)

Air Force Center for Environmental Excellence (AFCEE)

Naval Facilities Engineering Command (NAVFAC)

General Services Administration (GSA)
National Aeronautics and Space Administration (NASA)




In addition to competitive compensation, LEE & RO offers an attractive benefits package as listed below:

  • Group Medical, Dental, Vision, and Life Insurance Plans (For Group Medical, Company pays 100% of Employee’s and 67% of Dependents’ Premium.)

  • Paid Time Off, Holidays, and Jury Duty

  • Family and Medical Leave per State and Federal Laws

  • Flexible Spending Accounts (IRS 125 Cafeteria Plan)

  • 401(k) Plan

  • Incentive Compensation (Bonus) Plan


LEE & RO, Inc. provides a stimulating work environment with a wide variety of engineering assignments and opportunities for career advancement.


LEE & RO, Inc. is an equal opportunity employer.

Current Openings

Civil/Water Infrastructure Engineers

Los Angeles County Area

Electrical Engineer

Los Angeles County Area & San Francisco Bay Area

Apply Here




For any inquiries, questions or comments, please call: 626-912-3391 or fill out the following form

We're Hiring!

To apply for a job with LEE & RO, please click on the email icon below to send a cover letter together with your C.V. to: Careers.

1199 South Fullerton Road

City of Industry, CA 91748

Tel: 626-912-3391

Fax: 626-912-2015

Dhiru Patel, PE
Chief Executive Officer
Direct: (626) 667-5309

Cell: (626) 347-4725

Charles Ro, PE

Direct: (626) 667-5347
Cell: (626) 780-8844

Business Development
Direct: (626) 667-5385

10640 Scripps Ranch Blvd., Suite 150

San Diego, CA 92131

Tel: 858-558-4411

Fax: 858-558-9522

Eric Lovering, PE
Branch Manager
Direct: (858) 332-4284
Cell: (858) 336-5151

8950 Cal Center Drive, Suite 120

Sacramento, CA 95826

Tel: 916-631-0111

Fax: 916-631-0292

Tony Park, PE

Regional Manager

(925) 627-3382 Direct

1550 Parkside Drive, Suite 320

Walnut Creek, CA 94596

Tel: 925-937-4050

Fax: 925-937-4052

Tony Park, PE

Regional Manager

(925) 627-3382 Direct