Public water system · UTAH18140
ActiveCardiff A.P.O
At a glance
Cardiff A.P.O (PWSID UTAH18140) is an active transient non-community water system in Salt Lake County, Utah. It reports serving 83 people through 27 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
83
Service connections
27
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cardiff A.P.O compare with other water systems in Salt Lake County?
By EPA's size categories, Cardiff A.P.O is a very small system (500 people or fewer). Salt Lake County has 77 active public water systems. Its population served is well below the county average of 19,034 people per system, and accounts for less than 0.1% of the 1,465,589 people reported by systems filed under the county. Across Utah, the 1,133 active systems average 3,458 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Cardiff A.P.O is about 42% 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. Utah has 509 active transient non-community water systems, 45% of the state's 1,133 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 898 Utah systems (79%) list groundwater as their primary source.
Who owns and regulates Cardiff A.P.O?
EPA lists Cardiff A.P.O as privately owned. The UT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 45 of the 77 active systems in Salt Lake County (58%) are also privately owned.
Does Cardiff A.P.O have drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2016. The violations listed here began between July 1993 and April 2016. By type: 4 monitoring and reporting, 1 monitoring, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 as archived and 3 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 |
|---|---|---|---|---|
| 2016-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2011-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2011-06-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2009-12-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 7 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.
Cardiff A.P.O: frequently asked questions
Who runs Cardiff A.P.O?
Cardiff A.P.O (PWSID UTAH18140) is a transient non-community water system privately owned. It is regulated by the UT state drinking water program.
How many people does Cardiff A.P.O serve?
Cardiff A.P.O reports serving 83 people through 27 service connections in Salt Lake County, Utah.
Where does Cardiff A.P.O 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 Cardiff A.P.O have any drinking water violations?
EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in April 2016. 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 Cardiff A.P.O'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 7 violations for this system; 1 is health-based, and the most recent began in April 2016. For current results, consult EPA ECHO, or the UT state drinking water program.
Where can I find Cardiff A.P.O's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cardiff A.P.O 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 Salt Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Salt Lake City Water System | Salt Lake | 383,612 | Community | Surface water |
| Granger-Hunter Improvement District | Salt Lake | 121,083 | Community | Purchased surface water |
| West Jordan City Water System | Salt Lake | 117,025 | Community | Purchased surface water |
| Sandy City Water System | Salt Lake | 99,750 | Community | Purchased surface water |
| Jordan Valley Wcd | Salt Lake | 99,335 | Community | Surface water |
| South Jordan City | Salt Lake | 89,704 | Community | Purchased 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, “Cardiff A.P.O, PWSID UTAH18140, Utah”, https://aquacensus.com/water-systems/utah/cardiff-a-p-o-utah18140 (data as of October 1, 2026).