Overview, rates & reports

Mariners Cove Water System is a Class A water system as defined by Washington Department Health (DOH). Water comes from five wells and is disinfected, filtered, and stored on site for distribution to the community. It also provides water to the fire hydrants.

It is a standalone system that neither provides water to nor receives water from any other source. The system is maintained and operated in accordance with DOH regulations.

MCBC contracts with NWNatural Water, doing business as (dba) King Water Company, to manage the system. King Water takes readings three times weekly, tests water for contaminants, maintains the disinfecting and filtering of water, provides routine and emergency maintenance, and does all customer billing for water usages on a quarterly basis.

As required by the Federal Safe Drinking Water Act (SDWA), Mariners Cove Beach Club provides members with a Water Quality Report (known as a “Consumer Confidence Report" annually. See pdf documents at bottom.

In the event of a water system emergency, it is important to notify the water system trustee David Marshall at 360-929-7122 (voice or text), or any trustee. If no response contact King Water at 360-678-5336 (Mon – Fri, 9:00 am – 4:00 pm); after hours at 888-266-7408. In many cases we can respond faster than King Water. Regardless of contact method used please ensure the water system trustee is notified so we can follow up on repairs needed and keep affected parties informed.

New residents should contact King Water at 360-678-5336 to set up an account.

In October 2024, an online billing and payment system Intuity was announced. Learn more here.
You can now retrieve and pay your water bill electronically at:
https://pay.waterbill.com/login-nw-mariners-cove

Billing Rates are shown below.

Top table shows the new rates, bottom current rates. The new bill amount is what your bill would be if you used the maximum number of gallons in the tier and shown for your convenience. The national consumption norm for a two-person household is approximately 3,000 gallons per month.

*Bill total includes $50 base rate charge/$60/base rate charge effective July 1, 2025 and assumes consumption at the maximum level in the rate tier for that billing period.

Additional fees payable to NWNWS

NSF Check - $4-$25 depending on number of occurrences and discretion of NWNWS accounting manager
New account setup - $35

85% of Cove residents consume less than 30,000 gallons per quarterly billing period. Usage greater than 30,000 gallons, or a significant increase, usually indicates trouble, and should be investigated.