Public water system · CA0800661
ActiveCaltrans-Collier Tunnel Rs
At a glance
Caltrans-Collier Tunnel Rs (PWSID CA0800661) is an active transient non-community water system in Del Norte County, California. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Caltrans-Collier Tunnel Rs compare with other water systems in Del Norte County?
By EPA's size categories, Caltrans-Collier Tunnel Rs is a very small system (500 people or fewer). Del Norte County has 31 active public water systems. Its population served is well below the county average of 977 people per system, and accounts for 0.3% of the 30,300 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Caltrans-Collier Tunnel Rs is about 31% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. California has 3,016 active transient non-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 Caltrans-Collier Tunnel Rs?
EPA lists Caltrans-Collier Tunnel Rs as owned by a state government. 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. 4 of the 31 active systems in Del Norte County (13%) are also owned by a state government.
Does Caltrans-Collier Tunnel Rs have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 1994. The violations listed here began between December 1983 and July 1994. By type: 10 public notice, recordkeeping or other, 1 monitoring and reporting and 1 required treatment not met. The contaminants or rules involved are Total coliform bacteria (TCR) and Surface Water Treatment Rule. EPA lists 10 as archived and 2 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 |
|---|---|---|---|---|
| 1994-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 1984-09-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-08-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-04-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-03-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-02-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1984-01-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1983-12-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
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.
Caltrans-Collier Tunnel Rs: frequently asked questions
Who runs Caltrans-Collier Tunnel Rs?
Caltrans-Collier Tunnel Rs (PWSID CA0800661) is a transient non-community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Caltrans-Collier Tunnel Rs serve?
Caltrans-Collier Tunnel Rs reports serving 100 people through 1 service connection in Del Norte County, California.
Where does Caltrans-Collier Tunnel Rs 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 Caltrans-Collier Tunnel Rs have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 1994. 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 Caltrans-Collier Tunnel Rs' 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, one is health-based, and the most recent began in July 1994. For current results, consult EPA ECHO, or the CA state drinking water program.
Where can I find Caltrans-Collier Tunnel Rs' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Caltrans-Collier Tunnel Rs is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Del Norte County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Crescent City | Del Norte | 17,262 | Community | Groundwater |
| Bertsch Ocean View Csd | Del Norte | 2,605 | Community | Purchased groundwater |
| Smith River C.S.D. | Del Norte | 2,568 | Community | Groundwater |
| Jedediah Smith State Park | Del Norte | 2,208 | Transient non-community | Groundwater |
| Del Norte Coast State Park - Mill Creek | Del Norte | 1,051 | Transient non-community | Groundwater under influence of surface water |
| Gasquet C.S.D. | Del Norte | 657 | Community | Surface water |
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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, “Caltrans-Collier Tunnel Rs, PWSID CA0800661, California”, https://aquacensus.com/water-systems/california/caltrans-collier-tunnel-rs-ca0800661 (data as of October 1, 2026).