PROSPERITY, PA · Washington County
CHADWICK MHP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of April 30, 1998. 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 Washington 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)
- PA5630004
- System type
- Community Water System
- Population served
- 43
- Service connections
- 16
- Ownership
- privately owned
- Water source
- groundwater (wells)
CHADWICK MHP is one of 3,064 community water systems in Pennsylvania in the 500 or fewer people size category, formerly serving 43 people from groundwater.
EPA's federal records list this system as inactive in 1998; the record below is historical.
As of August 1, 2026, its federal record holds 19 entries between 1976 and 1997, all of which EPA lists as closed. Nothing has been added since 1997.
All 19 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, synthetic organic chemicals, and the Total Coliform Rules.
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 1997 – December 31, 1997
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 1997 – November 30, 1997
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1997 – August 31, 1997
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1997 – July 31, 1997
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
January 1, 1997 – April 1, 1998
ResolvedMonitoring, Regular
—Toxaphene
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Fluoride
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—BHC-GAMMA
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—2,4,5-TP
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Arsenic
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Barium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Cadmium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Mercury
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Selenium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Endrin
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—2,4-D
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Chromium
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
August 1, 1976 – July 31, 1980
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 1, 1997 – December 31, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 1997 – November 30, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 1997 – August 31, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 1997 – July 31, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1997 – April 1, 1998 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Toxaphene | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Fluoride | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Methoxychlor | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Cadmium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Mercury | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Endrin | — | Resolved |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | 2,4-D | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Chromium | — | Archived |
| August 1, 1976 – July 31, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 21, 1985State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 18, 1985State Violation/Reminder Notice12 linked violations
- January 19, 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
724-228-0750
PROSPERITY, PA 15329