Jim Colston - Email & Phone Number

Director Of Water Quality & Regulatory Compliance at Irvine Ranch Water District

Jim Colston is based out of Fountain Valley, California, United States and works at Irvine Ranch Water District as Director Of Water Quality & Regulatory Compliance.

Jim Colston's Contact Information

Jim Colston's Work email

c*****@irwd***.com

Valid

Latest update

October 25, 2025

Location

Fountain Valley, California, United States

Jim's current employer

Irvine Ranch Water District

Description

Homepage

Website

irwd.com

HQ Location

Irvine, CA, United States

Number of employees

201-500

Industry

Utilities

Latest update

April 30, 2024

Read about Irvine Ranch Water District

Frequent questions about Jim Colston

What company is Jim Colston working for?

Jim Colston works for Irvine Ranch Water District.

What is Jim Colston's function at Irvine Ranch Water District?

Jim Colston is Director Of Water Quality & Regulatory Compliance at Irvine Ranch Water District.

Where is Jim Colston based?

Jim Colston is based out of Fountain Valley, California, United States.

What is Jim Colston's work email address?

Jim Colston's professional email address is c*****@irwd***.com

Who are Jim Colston's co-workers?

Jim Colston's colleagues are Marcell Bernal, Jeff Williams, Janet Wells, Thomas Malone, Steve LaMar, Rick Mykitta, Wendy Chambers, Cheryl Clary, John Funderburg, Rob Jacobson, Wayne Posey, Peer Swan, Tiffany Mitcham, A.T. Kilani, Jason Manning, Fiona Sanchez, Kevin Burton, Jenny Roney, Sheryl Parsons, Liam O'Donovan, Todd Colvin, Ives Sosa, Denise Chauv, Romuel Chaves, Steve Malloy, Stephen Donnelly, Scott Giatpaiboon, Julie Bendzick-Sin, Ryan Tran, Joseph Sciabica, Cesar Perez, Lisa Haney, Owen O'Neill, David Perez, Justin Cahatol.

Jim's co-workers

Marcell Bernal

Asset Maintenance Coordiantor

Jeff Williams

Construction & Repair Coordinator III

Janet Wells

Director of Human Resources

Thomas Malone

Director of Information Services / Head of IT

Steve LaMar

Director

Rick Mykitta

Director Of Maintenance

Wendy Chambers

Executive Director of Operations

Cheryl Clary

Executive Director of Finance and Administration

John Funderburg

Warehouse Lead

Rob Jacobson

Director of Treasury & Risk Management

Wayne Posey

Director of Wastewater Operations

Peer Swan

Director

Tiffany Mitcham

Human Resources Director

A.T. Kilani

Assistant Director of Water Operations

Jason Manning

Director of Maintenance

Fiona Sanchez

Assistant Director of Water Policy

Kevin Burton

Executive Director of Engineering and Water Quality

Jenny Roney

Human Resources Director

Sheryl Parsons

Senior Wetlands Specialist

Liam O'Donovan

Senior Engineering Intern

Todd Colvin

Water System Operator

Ives Sosa

Recycled Water Project Specialist

Denise Chauv

Laboratory Supervisor - Inorganic Chemistry/Elemental Analysis

Romuel Chaves

Water Quality Scientist

Steve Malloy

Principal Engineer

Stephen Donnelly

Water Maintenance Technical III

Scott Giatpaiboon

Water Quality Manager

Julie Bendzick-Sin

Public Affairs Specialist - Communication Design & Graphic Creation

Mechanical Maintenance Supervisor

Lisa Haney

Regulatory Compliance Manager

Owen O'Neill

Electrical & Instrumentation Manager

David Perez

Metering Systems Tech II

Justin Cahatol

Scientist - Regulatory Compliance

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