Sewer Services
Online payments are only processed from our Emailed Invoices. We accept Credit Cards, Debit Cards or E-Checks as payment through QuickBooks from your Emailed Invoices. Instructions are on the email with the attached PDF invoice and a "Pay Now" button is on the email. We do not have online payments on our website or any other website.
We do also accept checks and money orders by mail or in person. You can also call the office with a credit or debit card for payment. We can also take cash too, in person only.
We can also set up an Automatic Payment from your Credit or Debit Card - This is a FREE service to pay your sewer service invoice. You will still continue to receive your invoice at the beginning of each quarter, then an automatic debit will occur on the 5th or 10th of the month (your choice). This will give you time to preview your bill and contact us with any questions.
Please call the office for any questions at 503-355-2732 or email at office.twinrockssanitary@gmail.com
We email or mail invoices on the 1st day of the quarter: January, April, July and October. Payment is due by the 25th of the month the invoice is sent out or the invoiced date.
Sewer Service Fee – Resolution #24/25-5
There will be a 3.5% increase in the Sewer Fees for the Fiscal Year 2025/2026 (July 1 2025 - June 30, 2026). This increase was approved in 2010, but deferred from 2011-2023. Starting with the July 2025 Quarter the quarterly amount will be $158.29.
For customer who are on a fixed income we will continue to honor a monthly payment at $52.76.
*Fee is based on number of EDUs per property. EDU or “Equivalent Dwelling Unit” is the charge calculated for sewer services imposed upon each improved property serviced by our sewer system.
If you are or would like to be set up as an Annual Sewer Service Customer Twin Rocks Sanitary District offers a 5% Discount on annual invoicing. To receive the discount the Annual Sewer Service Invoice must be paid within the first thirty days of the invoiced date.
An annual invoices are on a yearly cycle on the quarter month of either – January, April, July, or October.
Sewer Service Fee – Resolution #24/25-5
There will be a 3.5% increase in the Sewer Fees for the Fiscal Year 2025/2026 (July 1 2025 - June 30, 2026). This increase was approved in 2010, but deferred from 2011-2023. Starting with the July 2025 quarter an Annual Sewer Service invoice will be $633.17. With the 5% discount of $31.66 - Annual invoices are $601.51.
*Fee is based on number of EDUs per property. EDU or “Equivalent Dwelling Unit” is the charge calculated for sewer services imposed upon each improved property serviced by our sewer system.
When planning New Construction first choose your contractor and follow any permitting requirements and regulations for Tillamook County.
Before you can connect to Twin Rocks Sanitary District sewer lines, you must apply for a Sewer Connection Permit with Twin Rocks Sanitary District. At the time you apply for this permit you must submit payment for the System Development Connection Fee (SDC Fee) of $5,340.00 along with the Connection Inspection Charge of $200.00. *Fees are subject to change by action of the Board of Directors.
Notify Twin Rocks Sanitary District when you plan to start installation of your sewer lines. Then call us when you are ready to connect to our sewer lines at 503-355-2732. Inspections are required for the connection of the house sewer lateral to the sewer stub at the property line and the connections between the main sewer and the property line by a District Inspector.
Twin Rocks Sanitary District requires notification from the Property Owner when Tillamook County has completed the Occupancy Permit for the construction on the property. When occupancy is permitted by the county Twin Rocks Sanitary District will start your sewer service invoicing. Per Twin Rocks Sanitary District Ordinance 2023/2024-1, Section 8 - Invoicing can also begin 90 days after notice to connect to Twin Rocks Sanitary District sewer lines.
If you are tearing down and/or removing an existing home or if a home/building once existed on the property please call to receive any details on SDC fees, Sewer Connection fees, or Sewer Service Fees.
Let us know if you have any question, please call the Twin Rocks Sanitary District office at 503-355-2732
**Call Before You Dig - 800-332-2344 - Oregon Utility Notification Center
