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Public Works 

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General Information 

The City water system serves an area on the plateau, generally from Rhodes Lake Road on the south to the north Pierce County line. The City provides water to approximately 35,000 people with 14,049 residential connections and 280 commercial accounts (as of 2014). The large majority of the City water customers are residential. For more details on Bonney Lake water service, view the current Water Quality Report, below. A service area map is available to view on our Maps page.

City of Bonney Lake water is supplied by Grainger Springs, Victor Falls Springs, Tacoma Point Well Field and Ball Park Well. The City is dedicated to providing water that exceeds the quality requirements of the Department of Health and is going to great efforts to enhance our water quality and protect our water resources. View the Water Quality Reports below or contact us for more information on water quality.

Backflow Testing / Cross-Connection Control

Approved Backflow Assembly Testers (BAT's) & Reports

A list of Department of Health approved Backflow Assembly Testers (BAT's) certified to work in Pierce County is available from Washington Certification Services at > click on the "Public BAT List" link. For more information call 253-288-3357.

» Backflow Prevention Assembly Test Report Form 
Please email completed forms to


About Cross-Connection Control

To protect public health, State drinking water rules require public water systems to develop and implement Cross-Connection Control (CCC) programs. Under these programs, some water system customers may be required to install backflow prevention assemblies. Backflow prevention assemblies must be tested at the time of installation, repair or relocation; and on an annual basis thereafter, to make sure they are functioning properly. A Washington State Department of Health (DOH) certified Backflow Assembly Tester (BAT) must perform the testing. The results of this testing must be submitted to the City of Bonney Lake Cross Connection Control Specialist.

For questions related to backflow assembly testing and cross-connection control requirements please contact the Cross Connection Control Specialist.

The City of Bonney Lake does not have any control over the charges for testing or repairs of backflow prevention devices. Customers are strongly urged to obtain competitive bids. The City of Bonney Lake expressly disclaims any responsibility for the quality of work or any other aspect of the approved testers listed in the link provided.



Water Quality Reports

Water Quality ReportAlso known as 'Consumer Confidence Reports

View the Coliform Water Monitoring Sites map on our Maps page for testing locations in the Bonney Lake water service area.

Information regarding Chromium-6

[September 22, 2016] The City of Bonney Lake, like all water systems across the country, conducted EPA required water sampling for Unregulated Contaminant Monitoring Rule 3 (UCMR 3) compliance in 2013 and 2014. The results of these samples showed a range of hexavalent chromium or chromium-6 of  0.0-0.41 parts per billion. Chromium-6 is an unregulated compound under the EPA rules, and in most U.S. states, including Washington.

The compound occurs naturally in the environment from the erosion of natural chromium deposits. It can also be produced by industrial processes. There is not currently a required level of chromium-6 in EPA or Washington Department of Health drinking water regulations. The City of Bonney Lake continues to follow EPA and Washington DOH guidelines for monitoring and compliance. If  regulations change, the City of Bonney Lake will follow the requirements of the regulatory agencies and take corrective actions should they be deemed necessary.

The City of Bonney Lake and its staff are committed to providing a safe and reliable source of drinking water to the citizens they serve. For additional questions please contact the City at (253) 862-8602.



Service Area Map

  • See the Maps Page for our Water Service Area Map
    Service Area Map sample

Water Usage & Conservation Tips

"Water conservation - using water efficiently and avoiding waste - is essential to ensure that we have adequate water today and into the future.  Water is a finite resource and the supplies on Earth today are no more than what was here at the beginning of the planet.  It is up to all of us to use the water we have wisely, and it is as simple as each of us making small changes. Make conserving water a daily part of your life. And remember when you save water, you save energy and money!" (Source - WA Department of Ecology)

Water Conservation TipsExcessive water use can result in high water bills, especially during summer months when water rates increase. To avoid high water bills, you can reduce and minimize your water use.

The City of Bonney Lake and Washington State Department of Ecology offer the following tips to conserve and reduce water use:


Water Conservation Advisories

During peak demand periods each day in July and August, Bonney Lake’s water system is heavily used. While our water supply capacity is adequate to meet ours and our neighbor’s needs, the pressure throughout our water system fluctuates frequently during peak demand periods. In order to prevent water pressure from getting too low in parts of our water system, City staff will occasionally place “Conserve Water” signs at entrances to our water service area. When you see the signs set out, we ask all our water customers to stop watering lawns, washing cars, and other outdoor activities. During periods when a Water Conservation Advisory is in effect, water customers using irrigation meters are asked to avoid watering grassy areas. We will only post these signs when absolutely necessary

Water Rates

The Finance Department Utilities Division is responsible for billing and taking payment for residential and business water use. For questions about utilities rates and payments, please see the Utilities page.


Water Division Crew Leads 
Assistant Superintendent of Public Works 
Administrative Specialist II – Operations

After-Hours Water/Sewer Emergencies: 253-841-5431 or 1-844-821-8911 (Toll Free)
For after hours emergencies related to pump station and grinder pump problems (such as alarms, strange noises, etc.) and/or broken water mains please call 253-841-5431 or 1-844-821-8911 (toll free).

Public Works Center
19306 Bonney Lake Blvd
Bonney Lake, WA 98391
Mailing Address
City of Bonney Lake
Attn: Public Works Water Division
19306 Bonney Lake Blvd
Bonney Lake, WA 98391

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