DOWNINGTOWN WATER AUTHORITY
Pennsylvania — Community Water System — PWSID: PA1150026
System Information
| PWSID | PA1150026 |
| System Name | DOWNINGTOWN WATER AUTHORITY |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 03 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 12, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Pennsylvania |
| City | DOWNINGTOWN |
| ZIP Code | 19335 |
| Address | 100 WATER PLANT WAY |
| Organization | DOWNINGTOWN WATER AUTHORITY |
| Phone | 610-269-5362 |
Population & Service
| Population Served | 9,900 |
| Service Connections | 3,681 |
Drinking Water Violations (253)
This water system has 253 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2025 | Sep 30, 2025 | MR | No | No | — | — | — | Archived | Sep 30, 2025 | — | |
| Sep 1, 2025 | Sep 30, 2025 | MR | No | No | — | — | — | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Archived | Sep 30, 2025 | — | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | — | 0.080 mg/L | — | Archived | Sep 30, 2025 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.075 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.6 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.007 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.2 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 10 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.07 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.7 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.6 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.7 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.005 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.1 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | No | — | 0.075 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2022 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.