CHESTER, PA · Delaware County
CHESTER WATER AUTHORITY Water System
Consumer Confidence Report status
CHESTER WATER AUTHORITY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for CHESTER WATER AUTHORITY.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.
System facts
- System ID (PWSID)
- PA1230004
- System type
- Community Water System
- Population served
- 140,437
- Service connections
- 44,371
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CHESTER WATER AUTHORITY is among the 18 largest community water systems in Pennsylvania, serving 140,437 people from surface water.
As of August 1, 2026, its federal record holds 1 entry in 2011, all of which EPA lists as closed. Nothing has been added since 2011.
All 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals.
Violation history
Monitoring, Regular
—Nitrite
July 1, 2011 – September 30, 2011
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2011 – September 30, 2011 | Monitoring, Regular | Nitrite | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- April 3, 2012State Public Notification received1 linked violation
- April 3, 2012State Compliance achieved1 linked violation
- November 15, 2011State Violation/Reminder Notice1 linked violation
- November 15, 2011State Public Notification requested1 linked violation
- January 29, 1993Federal Proposed Administrative Order Issuedgeneral compliance action — not tied to a specific violation on record
- September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
Common questions
Is CHESTER WATER AUTHORITY required to publish a Consumer Confidence Report?
- Yes. CHESTER WATER AUTHORITY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CHESTER WATER AUTHORITY’s next Consumer Confidence Report due?
- CHESTER WATER AUTHORITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHESTER WATER AUTHORITY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CHESTER WATER AUTHORITY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
CHESTER WATER AUTHORITY
610-876-8185
CHESTER, PA 19016