Public water system · OR4101160
ActiveAvion Wc - Tetherow Crossing
At a glance
Avion Wc - Tetherow Crossing (PWSID OR4101160) is an active community water system in Deschutes County, Oregon. It reports serving 180 people through 86 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
180
Service connections
86
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Avion Wc - Tetherow Crossing compare with other water systems in Deschutes County?
By EPA's size categories, Avion Wc - Tetherow Crossing is a very small system (500 people or fewer). Deschutes County has 135 active public water systems. Its population served is well below the county average of 1,515 people per system, and accounts for less than 0.1% of the 204,467 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active community water system reports serving 6,703 people, so Avion Wc - Tetherow Crossing is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Oregon has 940 active community water systems, 37% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.
Who owns and regulates Avion Wc - Tetherow Crossing?
EPA lists Avion Wc - Tetherow Crossing as privately owned. The OR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 94 of the 135 active systems in Deschutes County (70%) are also privately owned.
Does Avion Wc - Tetherow Crossing have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2018. The violations listed here began between June 1976 and January 2018. By type: 6 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 4 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1976-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Archived |
| 1976-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 6 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Avion Wc - Tetherow Crossing: frequently asked questions
Who runs Avion Wc - Tetherow Crossing?
Avion Wc - Tetherow Crossing (PWSID OR4101160) is a community water system privately owned. It is regulated by the OR state drinking water program.
How many people does Avion Wc - Tetherow Crossing serve?
Avion Wc - Tetherow Crossing reports serving 180 people through 86 service connections in Deschutes County, Oregon.
Where does Avion Wc - Tetherow Crossing get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Avion Wc - Tetherow Crossing have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2018. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Avion Wc - Tetherow Crossing's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the OR state drinking water program.
Where can I find Avion Wc - Tetherow Crossing's water quality report?
As a community water system, Avion Wc - Tetherow Crossing must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Deschutes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bend, City of | Deschutes | 77,704 | Community | Surface water |
| Redmond Water Department | Deschutes | 37,566 | Community | Groundwater |
| Avion Wc - Greater Avion | Deschutes | 35,332 | Community | Groundwater |
| Roats Water System | Deschutes | 6,469 | Community | Groundwater |
| Sunriver Water LLC/Sunriver Utilities | Deschutes | 4,300 | Community | Groundwater |
| Sisters, City of | Deschutes | 3,778 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Avion Wc - Tetherow Crossing, PWSID OR4101160, Oregon”, https://aquacensus.com/water-systems/oregon/avion-wc-tetherow-crossing-or4101160 (data as of October 1, 2026).