Public water system · PA1090079
ActiveBcwsa Main Lower South
At a glance
Bcwsa Main Lower South (PWSID PA1090079) is an active community water system in Bucks County, Pennsylvania. It reports serving 52,621 people through 15,800 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
52,621
Service connections
15,800
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Bcwsa Main Lower South compare with other water systems in Bucks County?
By EPA's size categories, Bcwsa Main Lower South is a large system (10,001 to 100,000 people). Bucks County has 298 active public water systems, and Bcwsa Main Lower South is the 3rd-largest of them by population served. Its population served is about 26 times the county average of 1,996 people per system, and accounts for 8.8% of the 594,687 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 Bcwsa Main Lower South is about 7.9 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 244 Pennsylvania systems (3.4%) list purchased surface water as their primary source.
Who owns and regulates Bcwsa Main Lower South?
EPA lists Bcwsa Main Lower South as owned by a local 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. 67 of the 298 active systems in Bucks County (22%) are also owned by a local government.
Does Bcwsa Main Lower South have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in September 2025. The violations listed here began between November 2018 and September 2025. By type: 5 public notice, recordkeeping or other, 4 contaminant level above the legal limit, 1 reporting, 1 required treatment not met and 1 monitoring and reporting. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2025-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2023-09-22 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-08-13 | ReportingNotify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR) · code 4F | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-08-13 | Required treatment not metTreatment Technique, Level 2 Assessment (RTCR) · code 2B | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2023-08-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2022-05-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2018-11-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-11-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Bcwsa Main Lower South: frequently asked questions
Who runs Bcwsa Main Lower South?
Bcwsa Main Lower South (PWSID PA1090079) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Bcwsa Main Lower South serve?
Bcwsa Main Lower South reports serving 52,621 people through 15,800 service connections in Bucks County, Pennsylvania.
Where does Bcwsa Main Lower South get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Bcwsa Main Lower South have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in September 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 Bcwsa Main Lower 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. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in September 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 Bcwsa Main Lower South's water quality report?
As a community water system, Bcwsa Main Lower South 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 Bucks County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lower Bucks Co Joint Mun Auth | Bucks | 63,007 | Community | Surface water |
| Aqua Pa Bensalem | Bucks | 59,001 | Community | Purchased surface water |
| Newtown Artesian Water Co | Bucks | 38,500 | Community | Purchased surface water |
| Northampton Bucks Co Mun Auth | Bucks | 36,750 | Community | Purchased surface water |
| Warminster Municipal Authority | Bucks | 36,000 | Community | Purchased surface water |
| Pa American Water Co Yardley | Bucks | 33,171 | 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, “Bcwsa Main Lower South, PWSID PA1090079, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/bcwsa-main-lower-south-pa1090079 (data as of October 1, 2026).