• Water

Public Works


Committed to the protection and conservation of our natural resources
The City of Tigard is dedicated to providing its consumer with the highest quality of water which meets or exceeds the standards set by the United States Environmental Protection Agency (EPA) and the Oregon Health Authority.

Tigard works to ensure the quality of drinking water through monitoring, planning, comprehensive designs, construction, operation and maintenance of the water system. In addition, the City of Tigard provides public education, field assistance and prompt customer service. 

Update June 28, 2017

Tigard City Council received a presentation from staff on June 20, 2017 celebrating “Water Independence Day.” June 9 marks the one-year anniversary of switching from wholesale water provided by the City of Portland to water from the Lake Oswego-Tigard Water Partnership.

The benefits of ownership in a regional water supply system include improved water quality. Staff conducted Lead and Copper water quality samples in 66 homes in September 2016 and again in March 2017 and results indicate significant reduction in exposure to Lead from leaching of household plumbing.

Final completion of the Lake Oswego-Tigard Water Partnership construction project is scheduled for this summer. This will include planned events, public outreach, and transfer of the oversight committee from the construction phase to the operations phase.

As part of the upgrade and expansion of this system, a new treatment process was recommended by a panel of experts in drinking water treatment and public health. The new plant utilizes a state-of-the-art water treatment process, conventional filtration plus ozone. Ozone, a powerful oxidant, destroys taste and odor causing compounds and removes more impurities from the water supply. In May, water treatment plant staff were embarking on their final day of testing the new ozone system and the plant is now producing ozonated water.

For more information: 

Update May 11, 2017

Water Tests Confirm Improvements in Water Quality, Lower Lead Levels
The City of Tigard recently completed a second round of required federal tests for concentrations of lead in drinking water, and is celebrating improved water quality as part of National Drinking Water Week. Tests showed improved water quality and safe, healthy drinking water for customers.  Read the press releaseSee test results.

Chlorine: Keeping Drinking Water Safe

American drinking water supplies are among the safest in the world. It did not happen by accident, and our water remains clean and healthy because of strong water quality standards safeguarding human health.

Water suppliers have dramatically improved water quality in the United States by using water disinfectants in drinking water. Products like chlorine were first used at the start of the 20th century, followed later by chloramine (a mix of chlorine and ammonia). These additions have drastically reduced the incidence of deadly waterborne illness such as cholera and typhoid. Both are no longer considered public health threats, unlike in some developing countries.

The U.S. Centers for Disease Control and Prevention has called public drinking water disinfection and treatment one of the greatest public health achievements of the 20th century. Learn more here. For more information on federal regulations for clean drinking water, visit the U.S. Environmental Protection Agency website on the drinking water standards.

Chlorine Taste and Smell
The City of Tigard is now using chlorine as a disinfectant for drinking water.  Some customers may notice a chlorine taste and smell. 

What can I do about chlorine odors?
The odor is just chlorine doing its job. The simplest way to get rid of the odor is to pour a pitcher of water and let it sit in the refrigerator. Overnight, the chlorine will have dissipated and the odor will be gone.

Water Service Area

The City of Tigard provides water to over 60,000 individuals in the Tigard Water Service Area. This area includes the communities of the City of King City, City of Durham, two-thirds of the City of Tigard, and the unincorporated area of Bull Mountain.

The City of Tigard has over 250 miles of underground distribution system piping ranging in size from two inches to thirty-six inches in diameter. Connected to the distribution system are 14 reservoirs holding 27.4 million gallons of water. These reservoirs range in size from 280,000 gallons to 10 million gallons in capacity.


Pressure Related Problems

Occasionally you may experience a decrease or increase in the water pressure. There are many possible causes of this problem including air in the water lines, faulty plumbing fixtures, or a defective pressure regulating valve.

Air in the lines is usually associated with construction in the area or a change in your water supply, such as the meter being turned off for repairs. Symptoms of air pockets include water "spitting" out of the faucet, cloudy or milky looking water, and possibly water that appears rusty. If you experience any of these things turn at least two faucets on full blast for 5-10 minutes; it's helpful if the faucets are located at different ends of the house. This should pull the air pocket through the water lines, however, if the problem doesn't clear up call the Public Works Water Division at 503-718-2591.

If you are experiencing low pressure in one area of the home, it may be related to a faulty plumbing fixture. For instance, if the kitchen sink works fine but the clothes washer takes a long time to fill, the problem is probably in the line to the washer or the washer itself. The same can be said of individual problems with showers, toilets, sinks, etc. If this sounds like the problem you are having, you'll want to contact a plumber or make the repair yourself.

Another common pressure problem can be attributed to a bad pressure regulator. If the pressure seems unusually low throughout the house or if your pipes tend to rattle when certain fixtures are used, you may need to repair or replace your regulator valve.

Fluoride in the Water?

No. Tigard Water Service Area residents do not receive a fluoridated supply of
tap water.

Aquifer Storage and Recovery (ASR) Wells

ASR is a process which allows large quantities of drinking water to be stored in wells. The wells are made up of naturally-occurring underground rock formations known as aquifers. Water is injected into the aquifer during the rainy season when the region’s water supply is plentiful. During times of peak demand, stored water is pumped out of the aquifer, re-chlorinated and used to supplement Tigard’s other drinking water sources.
The benefits of ASR wells include:

  • Having an adequate emergency water supply.
  • The ability to postpone construction of other—more expensive—water storage facilities.
  • The ability to supplement Tigard’s normal water sources during times of high demand.

The combined storage capacity of Tigard’s ASR wells is 400 million gallons.
For more information, contact Public Works Division Manager John Goodrich at 503-718-2609 or

Particles Plugging Your Faucet Aerators?

We get a lot of phone calls from residents reporting small white or gray particles plugging their faucet aerators and strainers. Some customers are cleaning their aerators on a daily basis just to keep the water flowing.

So, what is the problem? The problem is not unique to us, but is actually occurring across the nation. The problem actually has nothing to do with the water but is the result of the dip tube in many home water heaters installed between the years 1993 and 1997. If you would like more information on dip tubes, contact Jennifer Joe at 503-718-2599 or email at

Water Sampling Program

The Environmental Protection Agency (EPA) and Oregon Health Authority oversee Oregon's drinking water programs and require water providers to conduct routine monitoring of their water supplies and to report the test results annually. 

The City of Tigard, on a monthly basis, collects water samples to test for the presence of coliform bacteria. The presence of coliform bacteria is an indicator of a potential contamination. In addition, the City of Tigard tests for the level of disinfectants present in the water supply. Based upon our population and distribution system, the City of Tigard is required to collect 70 coliform bacteria samples each month. To find the latest analysis results of water quality testing conducted by the City of Tigard check out the Oregon Public Health water system query page.

To ensure that tap water is safe to drink the EPA sets water quality standards and establishes methods and monitoring requirements for water utilities. The EPA sets maximum levels for water contaminants and requires utilities to give public notice whenever a violation occurs. Currently, there are more than 120 water quality standards for potential contaminants in drinking water supplies in Oregon.
Water quality standards for public water systems as outlined in the EPA's Safe Drinking Water Act and on the Oregon Health Authority Public Health website. 

If you have any questions and/or concerns regarding water quality, please contact Jennifer Joe at 503-718-2599 or email at

Frequently Asked Questions

Is our water hard or soft?
Surface water from the Pacific Northwest is some of the softest water in the country. The typical range of softness is 1/3 to 1/2 grains of hardness per gallon.
What can I do about chlorine odors?
The odor is just chlorine doing its job. The simplest way to get rid of the odor is to pour a pitcher of water and let it sit in the refrigerator. Overnight, the chlorine will have dissipated and the odor will be gone.

Do we have fluoride in our water?
No. As a Tigard Water Service Area resident, you do not receive a fluoridated supply of tap water. If you have questions regarding fluoride in tap water, please contact Jennifer Joe at 503-718-2599 or email at

Why does the taste and odor of my water sometimes differ?
Water naturally varies in taste and odor at different times of the year. Taste and odor problems can come from new or old pipelines, plumbing fixtures, or changes in water quality. Customers may notice changes predominately during weather changes. These changes are closely monitored to ensure that they do not affect the safety of the water. 
Is bottled water safer than tap water?
The safety of bottled water depends on its source and the treatment is has undergone. Bottled water is considered a food product, so it regulated by the Food and Drug Administration (FDA). The U.S. Environmental Protection Agency (EPA) regulates water utilities. The FDA has been tightening regulations, and now bottled water generally must meet the EPA's Purity and Safety Requirements for Public Drinking Water. Using bottled water is a personal preference. However, if you are using bottled water for health reasons, we suggest that you thoroughly research the product that you are selecting to assure that is offers the level of protection that you are seeking.

Can I get my water tested?
If you are concerned about the quality of water in you home, you may want to have your water tested. For a fee, private laboratories will test your tap water. Not all labs are certified to test for all contaminants. 

Water Line Insurance Alert

A few Tigard water service area customers have contacted the city regarding information mailed to them about insurance for repairs or replacement to water supply lines. The City of Tigard is not affiliated with the company offering such coverage and is not involved with this mailing. The city does not endorse or have any partnership with any organizations offering this service. Any questions regarding the mailed information should be directed to the company listed in the material. You are not obligated to purchase this insurance.

The city is responsible for maintenance, repair, and replacement of the water service line between the street and your water meter. Property owners are responsible for maintenance and replacement of the service water supply line from the water meter outlet to the home, and all water pipes and fixtures inside the home.

City of Tigard Staff Contact:
Jared Isaksen
Assistant Finance Director
Water Pressure/Leak Problems

Utility Billing Questions
503-718-2460 | Utility Billing

Water Quality/Conservation
Jennifer Joe
503-718-2599 | Email

Cross Connection/Backflow
Hung Nguyen
503-718-2603 | Email
Submit Backflow Test Reports

Know H20
DOWNLOAD:  Current Water News

Request a Water Audit

Who is My Water Provider?

Tigard residents and business are served by one of two area water providers. The City of Tigard provides water to over 60,000 individuals in the Tigard Water Service Area. This area includes the City of King City, City of Durham, two-thirds of the City of Tigard, and the unincorporated area of Bull Mountain. The Tualatin Valley Water District provides water to the remaining portions of Tigard.

Quick Links

Information Links



Request email notification when page changes Email Me