BCWSA MAIN LOWER SOUTH
PWSID: PA1090079 · Warrington, PA · Serves 52,621 people
BCWSA MAIN LOWER SOUTH has 20 health-based violations out of 20 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
BCWSA MAIN LOWER SOUTH (PWSID PA1090079) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 52,621 people in Warrington, PA, and is subject to primacy enforcement by the Pennsylvania drinking-water program.
The system's federal compliance record contains 20 total violations, with 20 classified as health-based (MCL exceedances or treatment-technique failures). 4 distinct contaminants have been cited, including Haloacetic Acids (HAA5), E. coli, Total Trihalomethanes (TTHM). Recorded violations span 2015–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Pennsylvania state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- PA1090079
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Warrington, PA
- Population Served
- 52,621
- Health Violations
- Yes (20)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Haloacetic Acids (HAA5) | 12 | 12 |
| E. coli | 6 | 6 |
| Total Trihalomethanes (TTHM) | 1 | 1 |
| Arsenic | 1 | 1 |
Violation History (20)
| Contaminant | Health | Date |
|---|---|---|
| E. coli | Yes | Sep 1, 2025 |
| E. coli | Yes | Aug 13, 2023 |
| E. coli | Yes | Aug 13, 2023 |
| E. coli | Yes | Jul 1, 2023 |
| E. coli | Yes | Jul 1, 2023 |
| E. coli | Yes | Jul 1, 2023 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2022 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2022 |
| Total Trihalomethanes (TTHM) | Yes | Jul 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Jul 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2017 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2017 |
| Arsenic | Yes | Oct 1, 2015 |
Frequently Asked Questions
Is BCWSA MAIN LOWER SOUTH water safe to drink?
How many people does BCWSA MAIN LOWER SOUTH serve?
What violations does BCWSA MAIN LOWER SOUTH have?
What contaminants have been found in BCWSA MAIN LOWER SOUTH water?
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.