Welcome to King County Water District #90!

YOU can now access your meter information and more 24/7! Sign up for My360 Customer Portal and see your water usage, set alerts, manage billing and notifications. If you are already registered with InvoiceCloud, your current credentials will work with My360, no need to create new ones. If you do not know the password (reset will not work) or do not have an existing account with InvoiceCloud, you will need to create a new account for My360. To create an account, follow these steps: Account number is required and one of the following: Last name, First name as they appear on your bill Street Address must match Service Address as it appears on your bill Click HERE to SIGN UP

A Petition for Future Annexation of properties in the East May Valley area to the service boundary of King County Water District No. 90 is currently being circulated for signatures. Here are some Frequently Asked Questions and a map of the area being considered for annexation. FAQs MAP Sign Property Owner Petition HERE

Efforts are underway to potentially extend service to the May Valley Road area. To learn more about it, click here Future Annexation - May Valley Road Sign Property Owner Petition HERE FAQs MAP

For more information on our Well and Water Treatment Plant Project currently underway, click here: https://www.kcwd90.com/forms/001080.pdf

The Four Creeks Ranch Water System (FCR) (DOH ID# 22740-4) is a privately owned, Community Group A water system located in unincorporated King County, just south of Issaquah and east of the Renton Highlands, Washington. The system serves approximately 150 residents with 60 active connections, fed from a single on-site well. FCR operates under a Satellite Management Agreement (SMA) with NW Water Systems based out of Port Orchard, WA. Additionally, FCR has a Time and Materials Contract with King County Water District 90 (KCWD90) (PWSID 41150), allowing for occasional water system maintenance and repairs to be performed by KCWD90. The FCR community has previously had preliminary discussions regarding water system consolidation with KCWD90 and both parties were interested in exploring the possibility further. KCWD90 has since approached FCR to discuss a consolidation where FCR would transfer all water system assets to KCWD90 and KCWD90 would become the water service provider. The relative locations of the FCR and KCWD90 systems are shown on Figure 1 – Vicinity Map . FCR is approximately 1.1 miles east of the easterly edge of the KCWD90 service area boundary and nearest KCWD90 water mains. The WA-Department of Health (DOH) has issued KCWD90 a Consolidation Feasibility Grant. The purpose of this grant is to fund a preliminary engineering study, public outreach, cultural reviews, identify land acquisition, and feasibility study for Four Creeks Ranch water system to consolidate with KCWD90 water system. A copy of the grant’s Scope of Work is included in the Appendix. This report is intended to satisfy the preliminary engineering study requirement. To view the Four Creeks Consolidation Study, please click here .