Public water system · OR4100086
ActiveBlack Butte Ranch Corporation
At a glance
Black Butte Ranch Corporation (PWSID OR4100086) is an active community water system in Deschutes County, Oregon. It reports serving 740 people through 1,252 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2002.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
740
Service connections
1,252
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Black Butte Ranch Corporation compare with other water systems in Deschutes County?
By EPA's size categories, Black Butte Ranch Corporation is a small system (501 to 3,300 people). Deschutes County has 135 active public water systems. Its population served is about half of the county average of 1,515 people per system, and accounts for 0.4% 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 Black Butte Ranch Corporation 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 Black Butte Ranch Corporation?
EPA lists Black Butte Ranch Corporation 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 Black Butte Ranch Corporation have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2002. The violations listed here began between June 1976 and January 2002. By type: 4 monitoring and reporting. The contaminants or rules involved are Asbestos, Total coliform bacteria (TCR), Combined Radium (-226 and -228) and Gross alpha (excluding radon and uranium). EPA lists 2 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 |
|---|---|---|---|---|
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 1994-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | 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 4 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.
Black Butte Ranch Corporation: frequently asked questions
Who runs Black Butte Ranch Corporation?
Black Butte Ranch Corporation (PWSID OR4100086) is a community water system privately owned. It is regulated by the OR state drinking water program.
How many people does Black Butte Ranch Corporation serve?
Black Butte Ranch Corporation reports serving 740 people through 1,252 service connections in Deschutes County, Oregon.
Where does Black Butte Ranch Corporation 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 Black Butte Ranch Corporation have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2002. 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 Black Butte Ranch Corporation'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 4 violations for this system; none is health-based, and the most recent began in January 2002. For current results, consult the system's annual water quality report, EPA ECHO, or the OR state drinking water program.
Where can I find Black Butte Ranch Corporation's water quality report?
As a community water system, Black Butte Ranch Corporation 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, “Black Butte Ranch Corporation, PWSID OR4100086, Oregon”, https://aquacensus.com/water-systems/oregon/black-butte-ranch-corporation-or4100086 (data as of October 1, 2026).