Main Menu
- Home
- Customer Services
- Water Quality
- Save Water
- Community
- Events
- Community Partners
- Education Central
- Glossary of Water Terminology
- Acre-foot
- Adjudicated
- Amber-Colored Water
- Aqueducts
- Aquifer
- Artesian
- Backflow
- Bay Delta
- Best management practices (BMPs)
- Brackish Water
- Brown Act
- Capital costs
- Central Valley Project
- Chloramines
- Chlorination
- Chlorine demand
- Clear Well
- Coagulation
- Coliform
- Colorado River
- Conductance
- Conjunctive use
- Continuous sample
- Corrosivity
- Cost/benefit analysis
- Cross-connection
- Curb stop
- Demineralization
- Desalinization
- Direct filtration
- Disinfection
- Disinfection by-product
- E.P.A.
- Effluent
- Estuary
- Evaporation
- Evapotranspiration
- Filtration
- Finished water
- First draw
- First draw sample
- Floc
- Flocculation
- Fluoridation
- Flushing
- Fresh water
- Giardia Lamblia
- Giardiasis
- Green Acres Project (GAP)
- Grey water
- Groundwater
- Groundwater basin
- Hard water
- Hardness, water
- Hydrogeologic cycle
- Import Water
- Influent
- Maximum contaminant level (MCL)
- Mesa Water
- MGD
- Monitoring wells
- MWD
- MWDOC
- Nitrification
- Non-potable
- OCWD
- Odor threshold
- Operation and maintenance costs
- Orange County Groundwater Basin
- Ozonation
- Parts per million
- Percolation
- Permeability
- pH
- Picocurie
- Point-of-use treatment device
- Polymer
- Potable water
- ppb
- ppm
- Product water
- psi
- Pumping station
- Purveyor, water
- Raw water
- Recharge
- Recharge area
- Recharge rate
- Reclaimed Water
- Representative sample
- Reservoir
- Residual chlorine
- Reverse osmosis
- Riparian rights
- Run-off
- Safe Drinking Water Act (SDWA)
- Salinity
- Sedimentation
- Seepage
- Sludge
- Slurry
- SMCLs
- Soil profile
- Sole source aquifer
- Standard
- Sterilization
- Surface runoff
- Surface water
- Suspended solids
- Telemetry
- Total dissolved solids (TDS)
- Total residual chlorine
- Total trihalomethanes (TTHMs)
- Treated wastewater
- Trihalomethane (THM)
- Turbidity
- Ultraviolet light disinfection
- User fee
- Variable costs
- Wastewater
- Wastewater treatment plant
- Water purveyor
- Water table
- Waterborne disease outbreak
- Watershed
- Well
- Well field
- Well monitoring
- Well plug
- Wetlands
- Withdrawal
- Contests
- 5th Grade Education Program
- Children’s Water Education Festival
- Cool Facts
- Drinking Water Week
- Water Issues Study Group
- Glossary of Water Terminology
- Emergency Preparedness
- Special Districts Shared Efficiencies
- Hazard Mitigation
- Photo Gallery
- Neighborhood Chat
- Leadership
- Board of Directors
- Departments
- General Manager
- Strategic Plan
- Actively participate in regional water issues
- Attract and retain skilled employees
- Be financially responsible and transparent
- Increase public awareness about Mesa Water and about water
- Practice perpetual infrastructure renewal and improvement
- Provide a safe, abundant, and reliable water supply
- Provide outstanding customer service
Utility Menu
- About
- Newsroom
- Notices
- Articles
- “Spring” Into Water-Wise Gardening!
- 2017 Water Quality Report Available July 1st
- A History of Drinking Water
- Applying High-Performance Organization Concepts to Your Public Works Department
- Are We Still In A Drought?
- At Your Service
- Audio Devices for Tours
- Back To School With Mesa Water
- Be a Mesa Water Saver This Summer
- Be Winter Water-Wise!
- California H2O: Flowing for the Future
- Check Your Home Plumbing for Leaks
- Clean Look, Updated Features Make MesaWater.org New Again!
- CMHS - Solar Cup Winners!
- CMHS Wins Second Place at Solar Cup
- Coleen L. Monteleone Retires After 32 Years
- Community Run is September 23rd
- Community: Stay Cool This Summer
- Conservation Corner
- Conservation Corner: Stop Leaks to Save Water
- Conservation: Go California Friendly, Get Cash Back!
- Consolidation Measure TT Passes
- Costa Mesa Fire Station Deserves Gold!
- District-Wide Safety Program Reduces Risk and Costs
- Emergency Drought Declaration Is Lifted, Conservation Encouraged As A Way Of Life
- Employee Excellence: Mesa Water Crews Keep the Water On
- Farewell and Thank You, Director Temianka
- First Responders Recognized
- Five Years of 100% Local Reliability
- Fix Leaks, Install a Smart Timer to Keep Saving Water
- Four Years Without a Lost-Time Accident
- FREE Summertime Educational Events Encourage Wise Water Use
- Fresh Water Facts
- From Costa Mesa to Sacramento… Mesa Water District Advocates for Accessible, Affordable, Reliable Water
- Honoring Hank Panian
- Hot Water News
- In Memoriam of Hank Panian
- Kurt Lind Creates Efficiencies in Government
- Leadership
- Learn About Water, and Mesa Water, at our Improved WISG
- Like @Mesa Water
- Local, Reliable, and Safe through Operations
- Love Water? Love Mesa Water!
- May is Water Awareness Month
- Measure TT: Voters to Consider Consolidation of Water, Sewer and Trash Services on November 8 Ballot
- Meet Artie Hernandez, Construction Inspector
- Meet Kay Lee
- Meet Our High-Quality Water Quality Team
- Meet Our Water Operations Department Assistant
- Mesa Water ❤’s Our Community
- Mesa Water Celebrates Flag Day
- Mesa Water Celebrates Six Years of Providing Local, Reliable Water through the MWRF
- Mesa Water District Achieving Excellence
- Mesa Water District Offers Testing for Lead in Drinking Water at Local K-12 Schools
- Mesa Water District’s Water Operations Manager Elected to SWMOA Board of Directors
- Mesa Water Employees Help Local Man Escape from Burning Car
- Mesa Water History: The First Water Reservoir
- Mesa Water History: Water Reflections
- Mesa Water Hosts High School Science Poster Presentation
- Mesa Water Infrastructure Renewal
- Mesa Water Invites You to a Community Chat
- Mesa Water Invites You to a Neighborhood Chat
- Mesa Water is an Award-Winning Agency
- Mesa Water Perpetually Improves Its Infrastructure
- Mesa Water Perpetually Improves, Invests In Infrastructure to Serve You Well
- Mesa Water Provides Fun-Filled Education to Local Students at Water Festival
- Mesa Water Recognized for Infrastructure and Outreach
- Mesa Water Recommends Customers Reduce Watering To 1 Day A Week For Winter Months
- Mesa Water Remains a District of Distinction
- Mesa Water Sponsors Environmental Education
- Mesa Water Staff Tour Costa Mesa Fire Station No. 1
- Mesa Water Studying Rate Adjustments with Opportunities for Public Input
- Mesa Water Supports Costa Mesa High School at 2019 Solar Cup
- Mesa Water Welcomes Two Seasoned Operations Employees to the Team
- Mesa Water Wins Public Outreach Award
- Mesa Water’s Community Roots Run Deep With 100+ Years Of Service
- Mesa Water’s Engineering Team Ensures Safe, Efficient Water Infrastructure
- Mesa Water’s John Cernek Retires
- Mesa Water’s New Online Bill Pay – Coming Soon!
- Mesa Water’s Pipeline Integrity Program Featured in ACWA Video
- Mesa Water’s Summer in the Community
- Mesa Water® by the Numbers
- More at MesaWater.org
- New Online Billing Service Goes Live Sept. 3
- New Surveys Support Superior Service Standards
- New Water Vending Machine This Summer
- OC Fair Waterwise Wednesdays
- Pay Online to Save Time, Dimes, and Trees
- Pipeline Integrity Testing Saves Costs
- Proactive Maintenance & Public Outreach Put Mesa Water On Top
- Putting Safety First Leads to Three Years without a Lost Time Accident
- Register for Mesa Water’s New Online Billing Service
- Remembering Hank Panian
- Save Time and Water with Just a Click
- School Assemblies and Campus Expos Provide Noteworthy Experiences
- Show Us How Mesa Water Matters Video Contest
- Sign Up for Emergency Alerts
- Springtime Landscape Workshop For You!
- Start the New Year Right by Being Water Wise!
- Student Artists Create Impressive Water-Themed Art Work
- Talented Two Promoted to Mesa Water Management
- Turf Removal & Water Efficient Landscape Workshop, May 4, 2019
- Turf Removal and Water-Efficient Landscape Workshop
- Two Operations Employees Advance
- Walk or Run the Costa Mesa Community Run on April 22nd
- Water District Directors Re-Elected by the Public; New Leadership to Serve Through 2018
- Water Education is “Elementary”
- Water Education Throughout the Year
- We Heart Vanguard: 22nd Annual Christmas Fantasia
- We Love the Costa Mesa Chamber of Commerce!
- We Love Vanguard University!
- Welcome Mesa Water’s New Chief Financial Officer, Marwan Khalifa
- Well 5 Improvements Assure Ongoing Reliability
- Your Water is High Quality
- Your Water is High Quality
- Press Releases
- Mesa Water District to Host Series of Town Hall Meetings
- “Water-wise Wednesday” Activities to be Hosted by Mesa Water District at 2014 OC Fair
- 2014 Water Quality Report Shows Drinking Water Achieves High Standards for 2013
- 2015 Water Quality Report Addresses Drought; Shows Drinking Water Achieves High Standards for 2014
- 2016 Water Quality Report Addresses Drought and Conservation; Demonstrates High Water Quality Standards
- 2017 Water Quality Report Shows High Standards for Mesa Water
- 2018 Water Quality Report Shows High Standards for Mesa Water District
- 2019 Water Quality Report Shows Water Provided by Mesa Water District Meets or Surpasses All State and Federal Drinking Water Standards
- Atkinson, Bockmiller to Lead Mesa Water District Board
- Be Waterwise – Visit The Turf Removal Workshop And Waterwise Expo To Save Time And Money On Your Landscape
- Be Waterwise and Get Your Mesa Water Fair Face on Every Wednesday Afternoon During the 2016 OC Fair
- California Court of Appeal Ruling Clarifies Rate Setting Standard for Cities and Water Districts
- Come and Get Your Summer Water Knowledge at Mesa Water's Garden Demonstrations During the 2013 OC Fair
- Congressman Dana Rohrabacher Supports Mesa Water
- Costa Mesa Sanitary District and Mesa Water District Reach Settlement Agreement
- Couples Can Learn About Water-Efficient Landscaping At Mesa Water’s Free “Date Night” Event, Wednesday, June 27th
- Ethan Temianka Departs Mesa Water® Board To Expand Patriarch Properties And Invest In Home Redevelopment In Columbus, Ohio
- Fitch Affirms AAA Bond Rating for Mesa Water District
- Free Conservation Kit at Mesa Water’s Drought Drive-Thru
- Free with OC Fair Admission - Mesa Water's Water-wise Graden Demonstrations During the 2011 OC Fair
- Learn About Turf Removal and Water Efficient Landscaping at Mesa Water’s Free Workshop, Saturday March 10th
- Learn About Water-Efficient Landscaping and Turf Removal at Mesa Water District’s Free Workshop, Saturday, May 4
- Lights! Camera! WATER! Mesa Water District Launches Video Contest for Local High School, College Students; Top Prize: $500
- Measure TT Will Allow Public to Vote on Consolidation of Mesa Water District and Costa Mesa Sanitary District
- Mega Mesa Water Savers Recognized for Helping the District Exceed State-Mandated, 20 Percent Conservation Goal
- Mesa Water Achieves 100 Percent Local Water Reliability with Completion of Mesa Water Reliability Facility
- Mesa Water Achieves Local Water Reliability with Completion of Mesa Water Reliability Facility
- Mesa Water and Orange Coast College to Distribute Free Fresh Water and Nalgene Water Bottles at New, On-campus Water Vending Machine
- Mesa Water Announces Winners of First-Ever #MesaWaterMatters Video Contest
- Mesa Water Board Updates District's Expense Reimbursement Guidelines and Credit Card Use
- Mesa Water Board Updates District's Strategic Plan
- Mesa Water Commemorates Colored Water Treatment Facility Improvements Project with Rededication Plaque
- Mesa Water District Amends Outdoor Watering to One-Day a Week; Irrigation Allowed on Saturdays Only
- Mesa Water District Awarded Transparency Certificate of Excellence
- Mesa Water District Awards Contract to Brutoco for Colored Water Treatment Facility Improvements
- Mesa Water District Board Approves Emergency Drought Ordinance to Reduce Water Use by 20 Percent to Help Preserve Drinking Water During Historic Drought
- Mesa Water District Board of Directors Approves New Labor Agreement with Employee Association
- Mesa Water District Board of Directors Names James R. Fisler as President and Shawn Dewane as First Vice President
- Mesa Water District Breaks Ground on its Colored Water Treatment Facility Imporvements Project
- Mesa Water District Celebrates 30 Years of its Water Issues Study Group - A 3-Part Adult Education Series
- Mesa Water District Celebrates 50 Years of Providing Pure, Plentiful Water
- Mesa Water District Celebrates Second Year of Local Reliability; Fifty-Five Years of Service to the Community
- Mesa Water District Celebrates Six Years of 100 Percent Local Groundwater Supply Reliability
- Mesa Water District Conducting Water Flushing of Main Water Pipeline to Ensure High-Quality Water
- Mesa Water District Crews Work Quickly, Safely To Fix Leaks
- Mesa Water District Customers Can Enter to Win 2011 OC Fair Tickets and Carnival Ride Passes
- Mesa Water District Director James R. Fisler Elected as Special District Voting Member of Orange County Local Agency Formation Commission
- Mesa Water District Director James R. Fisler Elected to LAFCO Alternate Seat
- Mesa Water District Director James R. Fisler Selected as Vice Chair of Orange County Housing and Community Development Commission
- Mesa Water District Elects Fred R. Bockmiller, Jr. As President and James F. Atkinson As First Vice President of its Board of Directors
- Mesa Water District Engineer Earns Two Prestigious Honors
- Mesa Water District Exceeds State-Mandated Goal With 21% Conservation; Qualifies for Reduced Conservation Due to Mesa Water Reliability Facility
- Mesa Water District Further Restricts Outdoor Watering in its Service Area to Meet State-Mandated Conservation Goals
- Mesa Water District Hires Justin Finch as Conservation Specialist
- Mesa Water District Hires Stacy Taylor As Communications Manager
- Mesa Water District Honored with Rose Award by the OC Taxpayers Association
- Mesa Water District Honors Customers' Water-Saving Efforts
- Mesa Water District Honors the Camp with Water Use Efficiency Award
- Mesa Water District Hosts 2012 Water Issues Study Group ("WISG")
- Mesa Water District Hosts 25th Annual Water Issues Study Group
- Mesa Water District Hosts Annual Water Issues Study Group
- Mesa Water District is Improving its Colored Water Treatment Facility
- Mesa Water District Launches New, Enhanced Online Bill Pay Service for its Customers
- Mesa Water District on Track to Meet State-Mandated Conservation with Continued Efficiency Among Customers
- Mesa Water District Partners with Local Organizations at Fall Community Events
- Mesa Water District Posts Compensation Online at MesaWater.org
- Mesa Water District Promotes its Commitment to Ensuring an Excellent Work Environment for Employees
- Mesa Water District Re-elects Fred R. Bockmiller, Jr., P.E. as President of the Board
- Mesa Water District Receives District of Distinction Accreditation
- Mesa Water District Receives High Satisfaction Marks in Customer Survey
- Mesa Water District Releases 2012 Water Quality Report
- Mesa Water District Releases 2013 Water Quality Report
- Mesa Water District Releases Final Draft 2010 Urban Water Management Plan
- Mesa Water District Releases Final Draft 2015 Urban Water Management Plan for Public Review and Comment
- Mesa Water District Sponsors Costa Mesa High School in 2019 Solar Cup, the Nation’s Largest Student-Based Solar-Powered Boat Race
- Mesa Water District Surpasses 1,000 Days Without a Lost-Time Incident
- Mesa Water District to Celebrate Flag Day, Led by Costa Mesa-based Cub Scout Pack 108
- Mesa Water District to Educate Orange County Students at 23rd Annual Children’s Water Education Festival
- Mesa Water District to Help Customers Address the Drought, Implement Water-efficient Practices Through Landscape Workshops
- Mesa Water District to Host a 3-Part Adult Education Water Issues Study Group
- Mesa Water District to Host Annual Water Issues Study Group
- Mesa Water District to Host Summertime Neighborhood Chats
- Mesa Water District to Host Water-Wise Wednesdays Each Week at the 2015 OC Fair
- Mesa Water District to Offer State of the District Address on Thursday, February 19, 2015 at 7:00 a.m.
- Mesa Water District to Replace Chloramine Disinfection with Free Chlorine for One Month, Beginning February 18, 2014, with No Noticable Difference in Taste
- Mesa Water District to Replace Chloramine Disinfection with Free Chlorine for One Month, Beginning February 18, 2014, with No Noticable Difference in Taste
- Mesa Water District to Vote on New Watering Restrictions
- Mesa Water District Urges Community To Get Informed
- Mesa Water District Wins Three Communications Awards This Year For Public Outreach
- Mesa Water District's Improved Bond Ratings Will Save Money for Customers
- Mesa Water District's Measure TT Triumphs
- Mesa Water Earns AAA Rating, Highest Possible For Financial Management
- Mesa Water Exceeds 1,600 Days of Safe Work with No Lost-time Incidents
- Mesa Water Expands Online Bill Pay Options for Customers
- Mesa Water Gains Appointment on Satewide Association of California Water Agencies’ Legislative Committee
- Mesa Water Hires Phil Lauri as District Engineer
- Mesa Water Hosts Community Festival to Launch New Water Vending Machine
- Mesa Water Hosts Public Workshop for Proposed Fiscal Year 2013-2014 Operation Budget
- Mesa Water is an Award-winning Public Agency
- Mesa Water is Hosting Free Landscape Workshops
- Mesa Water Kicks Off Mesa Water Saver Campaign to Reduce Water Use in its Service Area
- Mesa Water Lets You Get Behind-the-Scenes
- Mesa Water Offers Customers a Chance to Win 2012 OC Fair Tickets and Carnival Ride Passes
- Mesa Water Offers Water-wise Landscape Workshop to District Customers and Community on Saturday, April 14
- Mesa Water Partners with Municipal Water District of Orange County 26th Annual Water Awareness Poster & Slogan Contest
- Mesa Water Promotes its Board's Commitment to Local Water
- Mesa Water Re-elects Shawn Dewane As President and Fred Bockmiller As First Vice President
- Mesa Water Reaccredited as a “District Of Distinction” by the Special District Leadership Foundation
- Mesa Water Receives Certificate of Achievement for Excellence in Financial Reporting
- Mesa Water recognizes firefighters and mutual aid response to Nov. 11th Newport Beach structure fire
- Mesa Water Recommends Customers Reduce Watering to 1 Day a Week for December and January
- Mesa Water Renewed for Fifth Time as “District of Distinction” for Good Governance and Fiscal Practices
- Mesa Water Safety Record Hits Level Of Excellence As It Approaches Four Years Without A Lost Time Accident
- Mesa Water Successes A Benchmark For Water Agency Performance
- Mesa Water Supported SB 1387 (Emmerson) Metal Theft Bill, Signed by Governor Brown, to Protect Water Supply, Community and Save Repair Costs
- Mesa Water to Consider Adjusting Water Rates and Charges to Improve Infrastructure, Offset Increases in Water Supply Costs
- Mesa Water to Give "State of the District" Update on February 5th at Costa Mesa Senior Center
- Mesa Water To Host Reformatted Water Issues Study Group Focused on Infrastructure, Efficiency, and Quality
- Mesa Water to Host Summertime Community Chats
- Mesa Water to Host the Institute for Conservation Research and Education Symposium for Local Students, Civic Leaders, and Community Members
- Mesa Water to Host Water-Wise Landscape Workshop to Help Residents Ease Drought Pressure and Make Lasting Changes
- Mesa Water to Provide Water Use Efficiency Information on KOCI Radio’s Pots and Pans Show
- Mesa Water to Seek Voter Input on Possible Consolidation with Costa Mesa Sanitary District
- Mesa Water to Study Potential Cost-Saving and Options for More Efficient Water, Sewer and Trash Services
- Mesa Water to Update Rates for 2014 through 2018
- Mesa Water Welcomes Applications for Board of Directors, Division III
- Mesa Water Welcomes Marice H. DePasquale to Represent Division III on the Board of Directors
- Mesa Water's "H2O Sweet H2O" Water-wise Garden Demonstrations Return to OC Fair, Free with Admission
- Mesa Water’s Financial Accomplishments Save $8.96 Million, District Eliminates Unfunded Pension Liabilities
- Mesa Water® District Invites Costa Mesa Students to Enter Water Awareness Poster Contest
- Mesa Water® Recognized with Two Statewide Safety Awards from Association of California Water Agencies Joint Powers Insurance Authority
- New Year, "New" District: Mesa Water Adopts New Name, Logo
- Noelle Collins Joins Mesa Water as Communications Coordinator
- Orange County Board of Supervisors Chairwoman Michelle Steel Recognizes Mesa Water for its Cost-saving Achievements
- Sara Fahy Joins Mesa Water District as Public Affairs Manager
- Save Water, Save Money: Water-Efficient Landscape Workshops and Expo to be Hosted by Mesa Water
- Shawn Dewane, Marice H. DePasquale and Jim Atkinson Re-Elected to the Mesa Water District Board of Directors
- Study Shows $650 Rebate Per Customer, 28 Percent Lower Sewer Fees as Potential Benefits of Combining Mesa Water and Costa Mesa Sanitary Districts
- Thefts of Water Backflow Devices are on the Rise in Mesa Water's Service Area
- Tour Mesa Water’s Water-Wise Garden at the 2018 OC Fair, Free with Fair Admission
- Tracy E. Manning, Mesa Water District's Water Operations Manager Elected to Southwest Membrane Operator Association's Board of Directors
- Visit Mesa Water District’s Booth at Concerts in the Park for Water-Wise Prizes, Tips, and Fun Activities for All
- Visit Mesa Water District’s Booth at the 72nd Annual Costa Mesa-Newport Harbor Lions Club Fish Fry
- Visit the Mesa Water Reliability Facility (MWRF) for Mesa Water Reliability Day on Thursday, March 13, 2014
- Voters Re-Elect Fred Bockmiller, James Fisler and Ethan Temianka; Board Elects Ethan Temianka as President and Jim Atkinson as Vice President
- Voters Re-elect Mesa Water Directors Jim Atkinson and Shawn Dewane to Board of Directors
- Voters Re-elect Mesa Water District's President and First Vice President as Board Members
- Wahoo's, Water & Waves" Campaign Launches Nov. 7 to Increase Water Awareness
- Public Notices
- Multi-media
- Video Gallery
- "Jump into Mesa Water" by Jack Duarte and Madison Feldman
- "Mesa Water" by Shayan Shaikh
- "Where's My Water: Costa Mesa Edition" by Caitlyn Nojiri
- #MesaWaterMatters to Vanguard University" by Sierra Smith
- Imagine a Day Without Water - 30 second video
- Imagine a Day Without Water - Full length video
- Mesa Water PSA - Safe and Reliable
- Mesa Water PSA - Safe from the Tap
- Mesa Water PSA - Water-Wise Message
- Mesa Water Reliability Facility (MWRF) - Time Lapse Video
- WISG Almuni Reunion 2013 - MWRF Tour
- Video Gallery
- Mesa Water Alerts
- Email Signup
- Email Signup Confirmation
- Newsletters
- Media Contact
- Water Tax
- Contact
- External Affairs
- Water Operations
- Financials
- Business Administrator
- Water Efficiency
- Water Quality
- Backflow / Cross Connection Control
- Executive Assistant to the General Manager
- Administrative Services
- Customer Service
- Engineering
- Financial Services
- Human Resources
- Public & Government Affairs
- Media Contact
- Bill Inquiries / Customer Service
- Office of the General Manager