Public water system · CA1200715
ActiveGreen Diamond Resource Company - Korbel
At a glance
Green Diamond Resource Company - Korbel (PWSID CA1200715) is an active community water system in Humboldt County, California. It reports serving 250 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
18
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Green Diamond Resource Company - Korbel compare with other water systems in Humboldt County?
By EPA's size categories, Green Diamond Resource Company - Korbel is a very small system (500 people or fewer). Humboldt County has 90 active public water systems. Its population served is well below the county average of 1,486 people per system, and accounts for 0.2% of the 133,779 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Green Diamond Resource Company - Korbel 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Green Diamond Resource Company - Korbel?
EPA lists Green Diamond Resource Company - Korbel as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 41 of the 90 active systems in Humboldt County (46%) are also privately owned.
Does Green Diamond Resource Company - Korbel have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 1996. The violations listed here began between October 1980 and July 1996. By type: 2 monitoring and reporting, 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Gross alpha (excluding radon and uranium) (2 of them). EPA lists 3 as archived and 1 as resolved. 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. 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 |
|---|---|---|---|---|
| 1996-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1983-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1981-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1980-10-30 | 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.
Green Diamond Resource Company - Korbel: frequently asked questions
Who runs Green Diamond Resource Company - Korbel?
Green Diamond Resource Company - Korbel (PWSID CA1200715) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Green Diamond Resource Company - Korbel serve?
Green Diamond Resource Company - Korbel reports serving 250 people through 18 service connections in Humboldt County, California.
Where does Green Diamond Resource Company - Korbel 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 Green Diamond Resource Company - Korbel have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in July 1996. 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 Green Diamond Resource Company - Korbel'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; 1 is health-based, and the most recent began in July 1996. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Green Diamond Resource Company - Korbel's water quality report?
As a community water system, Green Diamond Resource Company - Korbel 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 Humboldt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eureka, City of | Humboldt | 27,078 | Community | Purchased groundwater |
| Arcata, City of | Humboldt | 20,875 | Community | Purchased groundwater |
| Humboldt C.S.D. | Humboldt | 19,807 | Community | Groundwater |
| Mckinleyville C.S.D. | Humboldt | 16,900 | Community | Purchased groundwater |
| Fortuna, City of | Humboldt | 12,133 | Community | Groundwater |
| Rio Dell, City of | Humboldt | 3,300 | Community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Green Diamond Resource Company - Korbel, PWSID CA1200715, California”, https://aquacensus.com/water-systems/california/green-diamond-resource-company-korbel-ca1200715 (data as of October 1, 2026).