Public water system · PA3390817
ActiveYoccos South
At a glance
Yoccos South (PWSID PA3390817) is an active transient non-community water system in Lehigh County, Pennsylvania. It reports serving 400 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in April 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Yoccos South compare with other water systems in Lehigh County?
By EPA's size categories, Yoccos South is a very small system (500 people or fewer). Lehigh County has 197 active public water systems. Its population served is well below the county average of 1,486 people per system, and accounts for 0.1% of the 292,806 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Yoccos South is about 178% above 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. Pennsylvania has 4,429 active transient non-community water systems, 61% of the state's 7,217 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,632 Pennsylvania systems (92%) list groundwater as their primary source.
Who owns and regulates Yoccos South?
EPA lists Yoccos South as privately owned. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 148 of the 197 active systems in Lehigh County (75%) are also privately owned.
Does Yoccos South have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in April 2016. The violations listed here began between January 1993 and April 2016. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Revised Total Coliform Rule, Nitrate and Nitrite. EPA lists 3 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 |
|---|---|---|---|---|
| 2016-04-01 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
All 3 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.
Yoccos South: frequently asked questions
Who runs Yoccos South?
Yoccos South (PWSID PA3390817) is a transient non-community water system privately owned. It is regulated by the PA state drinking water program.
How many people does Yoccos South serve?
Yoccos South reports serving 400 people through 1 service connection in Lehigh County, Pennsylvania.
Where does Yoccos South 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 Yoccos South have any drinking water violations?
EPA's records list 3 violations for this system; none 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 Yoccos South'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 3 violations for this system; none is health-based, and the most recent began in April 2016. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Yoccos South's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Yoccos South 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 Lehigh County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lca Allentown Division | Lehigh | 118,000 | Community | Surface water |
| Lca Wlsa Central Division | Lehigh | 47,693 | Community | Purchased surface water |
| Swt Main System | Lehigh | 14,500 | Community | Purchased surface water |
| Emmaus Borough Public Water | Lehigh | 14,000 | Community | Groundwater |
| Whitehall Twp Authority | Lehigh | 13,063 | Community | Groundwater |
| Salisbury Twp Water System | Lehigh | 8,522 | 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, “Yoccos South, PWSID PA3390817, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/yoccos-south-pa3390817 (data as of October 1, 2026).