Who pays for the water service line in Alderwood Water and Wastewater District, WA

This page answers for the water service line only, and holds no sewer lateral answer or requirement. To see what BelowGrid has for the sewer lateral at a property, look up its address.

Which part of the pipe is yours

Water service line
Yours from the meter to your building
Why, and what to do

If something’s wrong

Who to call first about the water service line

BelowGrid has no first-call guidance on file from Alderwood Water and Wastewater District about the water service line.

Alderwood Water and Wastewater District: official site(opens in a new tab)The documents this answer is built on

Who is responsible for which part

Inside Alderwood Water and Wastewater District's water service area the District owns and maintains the service from the main through the meter, and the customer owns and maintains the line from the back of the meter box to the building. Section 5.05.030 of the District's Code provides that "The District shall own, maintain and operate the water service connection from the main to and including the water meter, angle stop, check valve, meter setter and meter box."

Alderwood Water and Wastewater District: The water service connection from the main to and including the water meter, angle stop, check valve, meter setter and meter box.
The property owner: The service from the back side of the meter box to the building. Section 5.05.030 provides that "The customer shall own and maintain the service from the back side of the meter box to the facility served, including any valves, fittings or pressure regulators required to control water pressure to the facility served."

What else is worth knowing

The dividing point is the back side of the meter box. On new installations the customer must also install a shutoff valve between the meter box and the building. This answer applies inside the District's water service area as the Washington State Department of Health maps it (about 8% of Lynnwood's area, almost all of Brier and parts of Bothell, Mill Creek and Mukilteo); other systems serve the rest under their own rules. Check the name on your water bill.

Sources

Alderwood Water and Wastewater District Code section 5.05.030

Checked 5 Oct 2026 (3 weeks ago)

What this page cannot tell you

This page answers for the water service line only and holds no sewer lateral answer or requirement. Look up an address to see what BelowGrid has for the sewer lateral there.
No assistance or grant programme has been reviewed for this jurisdiction yet.
No sewer service territory has been mapped for this area, so BelowGrid cannot say who serves an individual address.

Who governs and serves this area

Jurisdiction: Alderwood Water and Wastewater District (special district)
Sewer service: No map of sewer providers is held here. BelowGrid cannot say which sewer provider serves an individual address.

Look up a specific address

This page describes what applies to properties in Alderwood Water and Wastewater District in general. To see which authorities serve one address, and what records exist for it, search for it.

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