Public water system · PA6430810
ActivePa Dot Rest Area 18
At a glance
Pa Dot Rest Area 18 (PWSID PA6430810) is an active transient non-community water system in Mercer County, Pennsylvania. It reports serving 500 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
500
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Pa Dot Rest Area 18 compare with other water systems in Mercer County?
By EPA's size categories, Pa Dot Rest Area 18 is a very small system (500 people or fewer). Mercer County has 124 active public water systems. Its population served is about 35% below the county average of 769 people per system, and accounts for 0.5% of the 95,322 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 Pa Dot Rest Area 18 is about 3.5 times 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 Pa Dot Rest Area 18?
EPA lists Pa Dot Rest Area 18 as owned by a state government. 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. 3 of the 124 active systems in Mercer County (2.4%) are also owned by a state government.
Does Pa Dot Rest Area 18 have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 1994. The violations listed here began between December 1979 and January 1994. By type: 2 monitoring and reporting. The contaminants or rules involved are Nitrite and Nitrate. EPA lists 1 as resolved and 1 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 1979-12-24 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
All 2 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.
Pa Dot Rest Area 18: frequently asked questions
Who runs Pa Dot Rest Area 18?
Pa Dot Rest Area 18 (PWSID PA6430810) is a transient non-community water system owned by a state government. It is regulated by the PA state drinking water program.
How many people does Pa Dot Rest Area 18 serve?
Pa Dot Rest Area 18 reports serving 500 people through 1 service connection in Mercer County, Pennsylvania.
Where does Pa Dot Rest Area 18 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 Pa Dot Rest Area 18 have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 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 Pa Dot Rest Area 18'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 2 violations for this system; none is health-based, and the most recent began in January 1994. For current results, consult EPA ECHO, or the PA state drinking water program.
Where can I find Pa Dot Rest Area 18's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Pa Dot Rest Area 18 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 Mercer County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aqua Pa Shenango Valley WTP | Mercer | 48,000 | Community | Surface water |
| Aqua Pa Greenville | Mercer | 8,600 | Community | Surface water |
| Grove City Boro Water Dept | Mercer | 7,871 | Community | Groundwater |
| Sharpsville Boro Water Co | Mercer | 5,029 | Community | Purchased surface water |
| Pine Twp Water Distr System | Mercer | 3,082 | Community | Purchased groundwater |
| Reynolds Water Company | Mercer | 2,370 | 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, “Pa Dot Rest Area 18, PWSID PA6430810, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/pa-dot-rest-area-18-pa6430810 (data as of October 1, 2026).