BRYN MAWR, PA · Montgomery County
PHILADELPHIA SUBURBAN WATER CO Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of June 1, 1985. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Montgomery County, PA.
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)
- PA1460021
- System type
- Community Water System
- Population served
- 900,000
- Service connections
- 215,569
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
PHILADELPHIA SUBURBAN WATER CO is the third largest community water system in Pennsylvania, formerly serving 900,000 people from surface water.
EPA's federal records list this system as inactive in 1985; the record below is historical.
As of August 1, 2026, its federal record holds 1 entry in 1979, all of which EPA lists as closed. Nothing has been added since 1979.
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 the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Gross Beta Particle Activity
July 1, 1979 – June 30, 1983
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1979 – June 30, 1983 | Monitoring, Regular | Gross Beta Particle Activity | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 8, 1982State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
Last known contact on file (system is inactive)
Not on record
215-525-1400
BRYN MAWR, PA 19010