A Consumer Confidence Report that describes our water source and quality is required by the State of Washington on an annual basis. The complete report is available at the Parkland Light & Water Company office. Look at Water Tests to see the latest test results. We are quite proud of the water quality we deliver to our consumers. The report will tell you why. If at anytime you are not satisfied with the water, please call our office at 253-531-5666 and we will assist in any way we can.
Copper Corrosion Control Program
Three of the well sites on the PL&WCo system have a new copper corrosion control program in operation. The purpose of this treatment is to address elevated levels of copper that some customers may have been experiencing in their home water supply.
Copper does not exist in the water as it is pumped from the wells. However, in some homes, water that is slightly acidic can leach copper from the copper pipes within the homes.
The treatment method that has been approved by the Washington State Department of Health, is to mix sodium hydroxide into the water. Sodium hydroxide is a substance which will act as a corrosion inhibitor and raise the pH values in the water to make it less acidic.
Testing has not shown anything that would suggest that sodium hydroxide has any harmful side effects.
However, you may notice a slight difference in the taste of the water. In addition, because sodium hydroxide contains sodium, the water will no longer be sodium free. While the level of sodium should be low, if you are concerned about sodium in your diet, you may want to contact your health care provider.
One way you can help insure yourself of not having elevated copper levels in water that you consume, is to run water from the tap for a short time before using it. The water should be run until you notice a temperature change. This should not take more than a minute or two. Elevated copper levels most frequently occur when water has been sitting in the water line, such as when it sits through the night without use. Flushing the line by running the water at your tap should remove any water that has elevated levels of copper.
Fire Hydrant Use
Use of Parkland Light & Water Company (PL&WCo) fire hydrants other than by recognized Fire Protection Departments, shall be ONLY with written authorization from PL&WCo.