Group A water systems are regulated under chapter 246-290 WAC and serve fifteen or more service connections or twenty-five or more people sixty or more days a year.

Group A Transient Non-Community (TNC) water systems are regulated under chapter 246-290 WAC and serve a population that changes day to day such as campgrounds, hotels, rest areas, restaurants.  They serve:
Twenty-five or more different people each day for sixty or more days within a calendar year;
Twenty-five or more of the same people each day for sixty or more days, but less than one hundred eighty days within a calendar year; or
One thousand or more people for two or more consecutive days within a calendar year.

Group B water systems are regulated under chapter 246-291 WAC and serve fever than fifteen connections and fewer than twenty-five people per day.

Firstly, make sure that you turn off any and all items in use such as dishwasher, laundry washer, sprinklers, etc. If you have a water meter at your property corner or other location on your property itself, it can be checked for leakage by looking at the face of the meter and the dials that are on it. If water is not being used, the leak detector dials on your water meter will be completely still and have no movement. If the dials are moving/spinning and you are not using water, it indicates that water is flowing through the meter and causing usage to count. In some cases, if the leak is very fast, the dials of the meter can become damaged and not correctly show the moving/spinning usage, so we advise you to also listen for the sound of flowing water through the pipeline. Another option is to take down your meter reading and then without using any water for 2 hours, recheck the meter reading to see if it has gone up in usage. In most cases, a slow leaks common cause is a leaking toilet flapper.

Naturally forming in the aquifer is a chemical called Manganese. This Manganese is what causes discoloration and even some odor in the water at times. Although the water is unpleasantly looking or even smelly, the manganese is considered a secondary contaminate and is not a health concern unless consumed in very high doses.

What is the best way to flush out discolored water?

Note: Refrain from using any hot water until the discoloration is gone. Also, tiny particles of debris may plug up faucet screens restricting the flow of water, so you may need to remove the screen heads before flushing inside lines.

Flow the discolored water from your cold water taps only, starting with the outside hose bibs. Flush the closest hose bib to your water meter, then the farthest, before opening any faucets inside your home or business.

Note: If you experience any sputtering of air with the water: keep flushing the outside hose bibs first, then find the cold-water faucet that is the highest point in your home (usually the bathroom shower head), and flush it until no air is present.

Flow water until the discolored water disappears from your outside hose bibs (this can take 15-25 minutes, depending on the length of your service line). Perform a similar process indoors – closest cold-water faucet to your water meter, then the farthest cold-water faucet from your water meter. Flow water from all cold-water taps inside and flush each toilet several times. The hot-water line should also be flushed after all the cold-water lines are clean. Hot water lines shouldn’t have as much discoloration or debris in the lines, so a quick flush before reinstalling the screen heads should do the trick! If the water does not clear after complete flushing, contact Iliad Water Company LLC at 206-764-3842 to report the problem. We will clear things up as soon as possible.

Unfortunately, Iliad Water Company LLC has no way to locate or determine where your water lines are located from the meter to your home. The contractor that built your home may or may not have made an as built map indicating those lines, or less common, ran a locate wire with your private water lines.

Iliad Water Company LLC does on the other hand have the ability to locate the Main water distribution lines, and tributaries leading up to the water meter. If you need the lines located up to the service meter, please contact the water manager at 206-764-3842 for scheduling.

Also, any digging done on or near your property needs to be marked by other utilities. They can be contacted by calling 811 or www.callbeforeyoudig.org.

*Please note that some of our water systems are not on the one call list and we would need to be contacted directly for marking water lines up to the meter.