Westridge Sanitation District has partnered with Nexbillpay to extend an additional payment option for customers interested in using their check, debit, or credit cards. Nexbillpay is a trusted third-party automated payment service that allows you to pay online.
 
You will need your Account Number provided on your statement.  If you do not have your statement or account number, you may request your Westridge account number by calling District office at 303-424-9467.

2026 Annual Sewer Service Fees

For 2026, annual sewer charges per single-family unit are $160. The annual sewer service invoice will be mailed the first week of January, and is due February 28, 2026. A $5 processing fee will be added to all accounts that choose to pay the annual sewer fee in installments.
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Please note that the District does not mail statements when an account posts a credit balance.

Accepted Methods of Payment

The District accepts check or money order via mail, and check, money order, or cash in the office. The District encourages customers to use electronic payment methods and email billing to reduce administrative costs. Click the link at the top of this page to register your Nextbillpay account and make electronic payments. 

Late Charges        

If payment has not been received by the due date, a late charge of $5.00 per unit, per quarter may be assessed

2026 Fees & Charges

District License

Observation Fee

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Tap Fee*



​Property Transfer Fees
$50 per calendar year

$300 for up to two trips out by District
   Engineer

$6,070 Metro Wastewater Tap Fee 
$4,000 Westridge Sanitation Tap Fee 
$   300 Observation Fee 
$10,370 Total Fees

$50 per property transfer
*Charge for single-family home with 3/4" water tap. Contact District office for information on other structures/water tap sizes.