MILTON, PA · Northumberland County

KEYSTONE WATER CO-NORTHUMBERLA Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of March 1, 1986. 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 Northumberland 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): PA4490008
System type: Community Water System
Population served: 5,920
Service connections: 1,750
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

KEYSTONE WATER CO-NORTHUMBERLA is one of 298 community water systems in Pennsylvania in the 3,301 to 10,000 people size category, formerly serving 5,920 people from surface water.

EPA's federal records list this system as inactive in 1986; the record below is historical.

As of August 1, 2026, its federal record holds 9 entries between 1982 and 1984, all of which EPA lists as closed. Nothing has been added since 1984.

All 9 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 and synthetic organic chemicals.

Violation history

Monitoring, Regular
—
Fluoride
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Selenium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Chromium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Cadmium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Barium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Arsenic
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Nitrate
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Mercury
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 25, 1984 – June 24, 1985	Monitoring, Regular	Fluoride	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Selenium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Chromium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Cadmium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Barium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Arsenic	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Nitrate	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Mercury	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

May 15, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 14, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 10, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
October 15, 1984State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 5, 1984State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 5, 1984State Violation/Reminder Noticegeneral 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

Last known contact on file (system is inactive)

Not on record

717-742-7638

MILTON, PA 17847