Public water system · WA5331477
ActiveGreat Basin Water Burbank
At a glance
Great Basin Water Burbank (PWSID WA5331477) is an active community water system in Walla Walla County, Washington. It reports serving 656 people through 212 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
656
Service connections
212
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Great Basin Water Burbank compare with other water systems in Walla Walla County?
By EPA's size categories, Great Basin Water Burbank is a small system (501 to 3,300 people). Walla Walla County has 69 active public water systems. Its population served is about 42% below the county average of 1,126 people per system, and accounts for 0.8% of the 77,717 people reported by systems filed under the county. Across Washington, the 4,705 active systems average 2,172 people each. Nationally, the average active community water system reports serving 6,703 people, so Great Basin Water Burbank 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. Washington has 2,392 active community water systems, 51% of the state's 4,705 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,370 Washington systems (93%) list groundwater as their primary source.
Who owns and regulates Great Basin Water Burbank?
EPA lists Great Basin Water Burbank as privately owned. The WA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 43 of the 69 active systems in Walla Walla County (62%) are also privately owned.
Does Great Basin Water Burbank have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026. The violations listed here began between April 2023 and January 2026. By type: 10 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Fluoride (5 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 2026-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 2024-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Resolved |
| 2024-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Fluoridecode 1025 | Yes | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
The 12 most recent 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.
Great Basin Water Burbank: frequently asked questions
Who runs Great Basin Water Burbank?
Great Basin Water Burbank (PWSID WA5331477) is a community water system privately owned. It is regulated by the WA state drinking water program.
How many people does Great Basin Water Burbank serve?
Great Basin Water Burbank reports serving 656 people through 212 service connections in Walla Walla County, Washington.
Where does Great Basin Water Burbank 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 Great Basin Water Burbank have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026. 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 Great Basin Water Burbank'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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the WA state drinking water program.
Where can I find Great Basin Water Burbank's water quality report?
As a community water system, Great Basin Water Burbank 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 Walla Walla County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Walla Walla Water Division | Walla Walla | 42,959 | Community | Surface water |
| College Place Water Dept | Walla Walla | 8,147 | Community | Groundwater |
| Snake River Housing Water System | Walla Walla | 3,036 | Community | Groundwater |
| Hood Park | Walla Walla | 2,283 | Transient non-community | Groundwater |
| Burbank Business Park | Walla Walla | 1,983 | Non-transient non-community | Groundwater |
| Waitsburg City of | Walla Walla | 1,817 | 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, “Great Basin Water Burbank, PWSID WA5331477, Washington”, https://aquacensus.com/water-systems/washington/great-basin-water-burbank-wa5331477 (data as of October 1, 2026).