Water & Sewer Utilities
New Shut-off Procedure and Payment Plan Options During Extreme Heat Events
We are committed to keeping our utility customers safe and informed, especially during extreme heat events. State legislation (ESHB 1329) requires utility services to delay any shut-offs during heat alerts declared by the National Weather Service. Shut-offs can only resume once the alert is lifted.
If your service has already been shut off when a heat warning is issued, you can request a specialized payment plan to reconnect your services.
To request a payment plan and reconnection, please call 360-867-2312 during regular business hours. For after-hours assistance, please call 1-800-926-7761.
To learn more about the specifics of ESHB 1329, please visit the official house bill report at: https://bit.ly/3NNnBC7
Thurston County Public Works supplies drinking water and sewer services for approximately 800 county residents. These services are only available in the following neighborhoods:
For questions related to your bill, water usage, temporary water shut-off requests, or to establish or change service, call 360-867-2312.
For water leaks, water pressure issues, sewer issues, or STEP tank alarms, call 360-867-2288.
For after-hours water & sewer emergencies, call 1-800-926-7761.
Update your contact information to receive text and email notifications about emergencies, repairs and maintenance to your water and sewer services.
New Utility Account
To establish a new utility account, please click this link to complete the application. The application must be completed and returned with a deposit by:
mail to TC Utilities, 9605 Tilley Rd S, Box D, Olympia, WA 98512,
in person at the TC Utilities office, 9605 Tilley Rd. S, Building C, Olympia, WA,
email, followed by a credit card deposit taken over the phone, or
fax to (360) 867-2293, followed by a credit card deposit taken over the phone.
Financial Policies and Procedures
Utility Bill Fact Sheet
Reports & Utility Plans
Utility Advisory Committees
Each of the service areas currently has a non-voting, voluntary resident advisory committee. These groups provide comments on funding priorities and improvement projects to Thurston County staff.
The Tamoshan Utility Advisory Committee meets quarterly.
The Boston Harbor Utility Advisory Committee meets bi-monthly.
The Olympic View Utility Advisory Committee meets bi-annually.
For more information, contact TC Utilities
Thurston County Water & Sewer Codes
Water & Sewer Frequently Asked Questions
- Boston Harbor
- Grand Mound
- Boston Harbor
- Grand Mound
- Olympic View
You may email firstname.lastname@example.org or call 360-867-2312 to check if we service your address.
Bills are mailed on the last business day of each month. Expect to receive your bill the first week of the month. If you have not received your bill, please email email@example.com or call 360-867-2312 to request a copy of your bill.
Bills are due and payable on the 20th of each month or the following business day, if the 20th falls on a weekend or a holiday. Bills are considered delinquent if not paid on or before the payment due date.
The County may apply a five (5) calendar day grace period before assessing interest or delinquent penalties.
Credit or Debit Card – Visit Online Payments or call 360-867-2312.
Check – Mail to TC Utilities, 9605 Tilley Rd S, Box D, Olympia, WA 98512.
Cash – Accepted in person at the TC Utilities office, 9605 Tilley Rd. S, Building C, Olympia, WA. TC Utilities office hours are from 8:00 a.m. to 5:00 p.m. In person hours are 8 a.m. to 4:30 p.m.
Automatic Payments (ACH) – Sign up for automatic utilities payment to deduct your utility bill amount due from your checking or savings account on the billing due date. No fees or service charges apply for this service.
A 2.35% convenience fee (minimum $2.00) is assessed by the credit card company. This fee does not apply to ACH payments.
No, payments are posted only on the bill due date. However, you can mail or make payment online prior to the billing date and only the remaining account balance, if any, will be made by ACH.
Please give us notice that you are closing your account prior to the move out day by Filling out the termination form or call 360-867-2312.
This link has info about how to avoid cross connections when installing plumbing.
An Equivalent Residential Unit (ERU) is based on a typical Single-Family Residential Unit. As defined in Thurston County Code title 15.12.012 a single-family residential unit means: "One or more rooms in a residential building or residential portion of a building which are arranged, designed, used or intended for use as a complete, independent living facility for one family and which includes permanent provisions for living, sleeping, eating, cooking and sanitation. Any duplication of the above permanent provisions, specifically cooking, eating, or laundry facilities, will be considered in excess of a single ERU allocation for a single parcel and in excess of the allowed sewer service capacity for one ERU…. any outbuilding with kitchen or cooking facilities, shower stalls, bathtub or laundry facilities are not to be connected or served by the sewer utility.
The County operates four utilities: Boston Harbor Community, Grand Mound, Olympic View Community, and Tamoshan Community (includes sewer customers in Beverly Beach). Prior to the consolidation of utilities effective January 2024, each of the utility service areas were operated and funded separately from one another. As part of this consolidation, Thurston County will be moving towards a blended utility rate model, which is a 5-year plan to merge the rates by incrementally adjusting the separate service area rates to achieve one rate that applies to all service areas. In the long term, the consolidation will stabilize the rates and utility operations, improve financial strength, and provide administrative efficiencies. The following tables outline the increase to the monthly utility statement from 2019 through 2025.
|Monthly Water Rate Adjustment ($)*||2019||2020||2021||2022||2023||2024*||2025*||7-year Increase||Avg. Monthly Increase|
|Monthly Sewer Rate Adjustment ($)||2019||2020||2021||2022||2023||2024*||2025*||7-year Increase||Avg. Monthly Increase|
*Proposed rate increase for 2024, 2025
** Values are for base rate only, does not include usage.
-Boston Harbor water usage rate is proposed to increase by $0.13 & $0.15 per 100 cubic feet in 2024 and 2025, respectively.
--Tamoshan water usage rate is proposed to increase by $0.14 per 100 cubic feet in both 2024 and 2025.
--Grand Mound water usage rate is proposed to increase by $0.18 & $0.19 per 100 cubic feet in 2024 and 2025, respectively.