Public Water Partners

MALDEN, MA · Middlesex County

400 DUNSTABLE ROAD (PINE KNOLL) Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of May 1, 2025. 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 Middlesex County, MA.

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 Massachusetts’s official records. Always confirm current status with Massachusetts before making decisions based on this information.

System facts

System ID (PWSID)
MA3301027
System type
Community Water System
Population served
30
Service connections
1
Ownership
privately owned
Water source
groundwater (wells)

400 DUNSTABLE ROAD (PINE KNOLL) is one of 450 community water systems in Massachusetts in the 500 or fewer people size category, formerly serving 30 people from groundwater.

EPA's federal records list this system as inactive in 2025; the record below is historical.

As of August 1, 2026, its federal record holds 120 entries between 1994 and 2001, all of which EPA lists as closed. Nothing has been added since 2001.

All 120 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 synthetic organic chemicals, volatile organic chemicals, and inorganic chemicals.

Violation history

  • Monitoring, Regular

    —

    Benzene

    April 1, 2001 – June 30, 2001

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    April 1, 1999 – June 30, 1999

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    April 1, 1999 – June 30, 1999

    Archived

  • Monitoring, Regular

    —

    Toluene

    April 1, 1999 – June 30, 1999

    Archived

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 1997 – March 31, 1997

    Archived

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Asbestos

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Endrin

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    2,4-D

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Heptachlor

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    LASSO

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Atrazine

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Carbofuran

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfone

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Dalapon

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Picloram

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Simazine

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    OXAMYL

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Glyphosate

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Endothall

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Diquat

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Chlordane

    October 1, 1995 – December 31, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Arsenic

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Barium

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Fluoride

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Mercury

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Nickel

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Selenium

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Antimony, Total

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Beryllium, Total

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Thallium, Total

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Endrin

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Dalapon

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Diquat

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Endothall

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Glyphosate

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    OXAMYL

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Simazine

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Picloram

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfone

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Carbofuran

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Atrazine

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    LASSO

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Heptachlor

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    2,4-D

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Chlordane

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Radium-226

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Radium-228

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Gross Beta Particle Activity

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Tritium

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    38-STRONTIUM-90

    July 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfone

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Styrene

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Endrin

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Nitrate

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Glyphosate

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 1995 – June 30, 1995

    Archived

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Benzene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 1995 – March 31, 1995

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    October 1, 1994 – December 31, 1994

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 1994 – March 31, 1994

    Archived

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

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

PINE KNOLL/400 DUNSTABLE ROAD

7812758566

MALDEN, MA 02148