Frequently Asked Questions

The presence of the minerals iron and manganese are found at various levels in most water sources.  These minerals can cause problems from discolored water, to staining of plumbing fixtures and some may even affect taste.  These problems occur before becoming a health hazard.  Because these minerals build up over time on most portions of the distribution system, flushing is done by the Public Works staff to minimize negative effects.  

Please call 253-851-8136 to report an issue.

All Gig Harbor water comes to you from a series of underground aquifers. This means that the water you consume is pumped from a series of wells to your home or business through our system of pipe.

We are pleased to report that your water meets or exceeds all health-related standards for quality and safety, according to the State of Washington Department of Health. The Federal Safe Drinking Water Act (SDWA) divides drinking water standards into two categories: Primary and Secondary. Primary standards relate to constituents that affect public health. Secondary standards relate to constituents that affect esthetic qualities such as appearance, taste, odor and color.

The regulatory schedule for testing the Gig Harbor water production wells is as follows:

• Microbiological - 9 times per month
• Nitrate - Annual sample
• Radionuclides - Every 36 months
• Volatile Organic Chemicals - Every 36 months

In addition, the city has an effective water main flushing program to minimize levels of manganese, rust, and sediment in our water mains. Water main flushing occurs twice each year.

Manganese is present, to some degree, in most public water supplies.  The federal government and the state of Washington currently don’t have any limits to the amount of manganese in municipal drinking water in the state. Generally, the city’s wells have manganese levels ranging from 0.05 to 0.10 mg/L. These levels vary somewhat from well-to-well and from time to time.

If you have concerns about the levels of manganese in your home's water, there are several steps you can take:

• Use home water test kits to monitor manganese levels at the tap in your home.  These are also available on-line or in many hardware or home supply stores. 
• Drink bottled water.
• Install an all-home or individual sink filtration system. These are available on-line and from most hardware or home supply stores.