WESTTOWN SCHOOL
Pennsylvania — Community Water System — PWSID: PA1150834
System Information
| PWSID | PA1150834 |
| System Name | WESTTOWN SCHOOL |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 03 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 5, 1982 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Pennsylvania |
| City | WEST CHESTER |
| ZIP Code | 19382 |
| Address | 975 WESTTOWN RD |
| Organization | WESTTOWN SCHOOL |
| Phone | 610-399-7842 |
Population & Service
| Population Served | 900 |
| Service Connections | 28 |
Drinking Water Violations (651)
This water system has 651 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 22, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 22, 2023 | Lead and Copper Rule |
| Mar 1, 2022 | Mar 31, 2022 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Mar 31, 2022 | Ground Water Rule |
| Mar 1, 2022 | Mar 31, 2022 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Mar 31, 2022 | Ground Water Rule |
| Mar 1, 2022 | Mar 31, 2022 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Mar 31, 2022 | Ground Water Rule |
| Mar 1, 2022 | Mar 31, 2022 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Mar 31, 2022 | Ground Water Rule |
| Jan 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 20, 2023 | Lead and Copper Rule |
| Jan 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 20, 2023 | Lead and Copper Rule |
| Jan 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 20, 2023 | Lead and Copper Rule |
| Jan 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 20, 2023 | Lead and Copper Rule |
| Aug 1, 2021 | Aug 31, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Archived | Aug 31, 2021 | Ground Water Rule |
| Jul 1, 2021 | Sep 30, 2021 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Sep 30, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2021 | Sep 30, 2021 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Archived | Sep 30, 2021 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 | Apr 30, 2021 | Groundwater Rule | MR | No | No | — | — | — | Archived | Apr 30, 2021 | Ground Water Rule |
| Apr 1, 2021 | Apr 30, 2021 | Groundwater Rule | MR | No | No | — | — | — | Archived | Apr 30, 2021 | Ground Water Rule |
| Feb 1, 2021 | Feb 28, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Feb 28, 2021 | Ground Water Rule |
| Feb 1, 2021 | Feb 28, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Feb 28, 2021 | Ground Water Rule |
| Jan 1, 2021 | Jan 31, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2021 | Ground Water Rule |
| Jan 1, 2021 | Jan 31, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2021 | Ground Water Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Unaddressed | — | Lead and Copper Rule |
| Mar 1, 2020 | Mar 31, 2020 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Mar 31, 2020 | Ground Water Rule |
| Mar 1, 2020 | Mar 31, 2020 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Mar 31, 2020 | Ground Water Rule |
| Dec 1, 2019 | Dec 31, 2019 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Dec 31, 2019 | Ground Water Rule |
| Dec 1, 2019 | Dec 31, 2019 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Dec 31, 2019 | Ground Water Rule |
| Dec 1, 2019 | Dec 31, 2019 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Dec 31, 2019 | Ground Water Rule |
| Dec 1, 2019 | Dec 31, 2019 | Groundwater Rule | MR | No | No | — | — | — | Resolved | Dec 31, 2019 | Ground Water Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | Jul 31, 2018 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jul 31, 2018 | Ground Water Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 12, 2018 | Consumer Confidence Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | Jul 31, 2018 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jul 31, 2018 | Ground Water Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2018 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 12, 2018 | Consumer Confidence Rule |
| Jul 1, 2018 | Sep 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Sep 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Sep 30, 2017 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 30, 2017 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2017 | Sep 30, 2017 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 30, 2017 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2017 | Sep 30, 2017 | Chlorine | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 30, 2017 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Dec 11, 2016 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 5, 2017 | Public Notice Rule and Revised PN Rule |
| Dec 11, 2016 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 5, 2017 | Public Notice Rule and Revised PN Rule |
| Dec 11, 2016 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 5, 2017 | Public Notice Rule and Revised PN Rule |
| Dec 11, 2016 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 5, 2017 | Public Notice Rule and Revised PN Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 22, 2016 | Consumer Confidence Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 22, 2016 | Consumer Confidence Rule |
| Jun 1, 2016 | Jun 30, 2016 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2016 | Ground Water Rule |
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.