Public water system · PA3480026
ActiveHillendale-on-the-Delaware
At a glance
Hillendale-on-the-Delaware (PWSID PA3480026) is an active community water system in Northampton County, Pennsylvania. It reports serving 150 people through 54 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
54
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hillendale-on-the-Delaware compare with other water systems in Northampton County?
By EPA's size categories, Hillendale-on-the-Delaware is a very small system (500 people or fewer). Northampton County has 199 active public water systems. Its population served is well below the county average of 1,680 people per system, and accounts for less than 0.1% of the 334,310 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active community water system reports serving 6,703 people, so Hillendale-on-the-Delaware 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. Pennsylvania has 1,762 active community water systems, 24% 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 Hillendale-on-the-Delaware?
EPA lists Hillendale-on-the-Delaware 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. 145 of the 199 active systems in Northampton County (73%) are also privately owned.
Does Hillendale-on-the-Delaware have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. The violations listed here began between October 2004 and July 2025. By type: 6 public notice, recordkeeping or other, 4 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (6 of them). EPA lists 10 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Archived |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Archived |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2014-12-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2014-11-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2008-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Hillendale-on-the-Delaware: frequently asked questions
Who runs Hillendale-on-the-Delaware?
Hillendale-on-the-Delaware (PWSID PA3480026) is a community water system privately owned. It is regulated by the PA state drinking water program.
How many people does Hillendale-on-the-Delaware serve?
Hillendale-on-the-Delaware reports serving 150 people through 54 service connections in Northampton County, Pennsylvania.
Where does Hillendale-on-the-Delaware 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 Hillendale-on-the-Delaware have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. 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 Hillendale-on-the-Delaware'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. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Hillendale-on-the-Delaware's water quality report?
As a community water system, Hillendale-on-the-Delaware 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 Northampton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Bethlehem | Northampton | 117,259 | Community | Surface water |
| Easton Area Water System | Northampton | 96,867 | Community | Surface water |
| Northampton Boro Muni Auth | Northampton | 40,000 | Community | Surface water |
| Paw Blue Mountain Division | Northampton | 23,763 | Community | Surface water |
| Paw Bangor District | Northampton | 9,008 | Community | Surface water |
| Hellertown Borough Authority | Northampton | 5,800 | Community | Groundwater |
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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, “Hillendale-on-the-Delaware, PWSID PA3480026, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/hillendale-on-the-delaware-pa3480026 (data as of October 1, 2026).