Tualatin Valley Water District
Washington County and TVWD service areas west of Portland
Population reference
224,600 people (EPA SDWIS PWS ID OR4100665; 2026 active CWS record).
Billing detail
Partial public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Bimonthly billing for water, with fixed charges shown monthly and bimonthly. TVWD's typical single-family residence uses 5,236 gallons or 7 CCF per month; sewer and surface-water charges are set separately by Clean Water Services or the applicable agency.
- Rate structure
- Two-block water structure with a fixed meter charge and volume rates per CCF. Effective November 1, 2026, a 5/8-inch meter has a $32.32 monthly or $64.64 bimonthly fixed charge; residential Block 1 is 0-28 CCF per bimonthly period at $10.69 and Block 2 is 29 or more CCF at $15.23. One CCF equals 748 gallons. The November 2026 increase is phased and affects fixed and volume charges.
- Residential cost reference
- For a typical 5/8-inch single-family account using 7 CCF per month, TVWD's November 2026 published example gives a $32.32 fixed charge plus approximately $128.28 volume charge, or $160.60 monthly for the above-average example. A lower-volume 7 CCF household is within the first bimonthly block and should use the current residential rate table; sewer and surface-water charges are separate.
- Wastewater and sewer calculation
- TVWD does not set the sewer and surface-water charges in the reviewed rate process; Clean Water Services is the separate agency responsible for those components. TVWD's water bill therefore may include externally set wastewater or surface-water items, and no universal TVWD winter-average formula is asserted here.
- Meter reading
- TVWD bills water bimonthly and publishes usage in CCF. The reviewed public pages do not identify one universal AMI vendor, hourly transmission interval, or route calendar; the official billing account provides the current read and consumption information for each service address.
Context, not a score
How documentation coverage compares
This profile
71%
overview fields with research notes
Oregon
42%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Partial public detail found
5 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
71%
Details not confirmed in the reviewed public material
- New-account deposit
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- Tualatin Valley Water District public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (OR4100665) ↗
Search the federal drinking-water database using public water system ID OR4100665.