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 July 4, 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)

Violation history

Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2001 – June 30, 2001
Archived
Monitoring, Regular
—
Benzene
April 1, 2001 – June 30, 2001
Archived
Monitoring, Regular
—
2,3,7,8-TCDD
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Asbestos
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Endrin
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
—
Toxaphene
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Dalapon
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Diquat
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Endothall
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Glyphosate
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
OXAMYL
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Simazine
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Picloram
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Dinoseb
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Aldicarb sulfone
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Carbofuran
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Aldicarb
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Atrazine
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
LASSO
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Heptachlor
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Heptachlor epoxide
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
2,4-D
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
October 1, 1995 – December 31, 1995
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
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
—
Heptachlor epoxide
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
—
Gross Beta Particle Activity
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Endrin
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
LASSO
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
BHC-GAMMA
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
2,3,7,8-TCDD
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Toxaphene
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
2,4-D
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
OXAMYL
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
38-STRONTIUM-90
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Simazine
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
2,4,5-TP
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Chlordane
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Picloram
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Dinoseb
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Methoxychlor
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Radium-226
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Aldicarb sulfone
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Pentachlorophenol
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Carbofuran
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Radium-228
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Aldicarb
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Atrazine
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
—
CYANIDE
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
—
Dalapon
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Heptachlor
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Diquat
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Tritium
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Endothall
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Nickel
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
Glyphosate
July 1, 1995 – September 30, 1995
Archived
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Vinyl chloride
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Ethylbenzene
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Dinoseb
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Pentachlorophenol
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Styrene
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
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
—
DICHLOROMETHANE
April 1, 1995 – June 30, 1995
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Styrene
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Endrin
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Chlordane
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1995 – March 31, 1995
Archived
Monitoring, Regular
—
Xylenes, Total
July 1, 1994 – September 30, 1994
Archived
Monitoring, Regular
—
Toluene
January 1, 1994 – March 31, 1994
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1993 – December 29, 2000
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2001 – June 30, 2001	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 2001 – June 30, 2001	Monitoring, Regular	Benzene	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	2,3,7,8-TCDD	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Asbestos	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Endrin	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Toxaphene	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Dalapon	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Diquat	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Endothall	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Glyphosate	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	OXAMYL	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Simazine	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Picloram	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Dinoseb	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Aldicarb sulfone	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Carbofuran	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Aldicarb	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Atrazine	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	LASSO	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Heptachlor	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Heptachlor epoxide	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	2,4-D	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Benzo(a)pyrene	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Chlordane	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Heptachlor epoxide	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Selenium	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Antimony, Total	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Beryllium, Total	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Thallium, Total	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Endrin	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	LASSO	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	BHC-GAMMA	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	2,3,7,8-TCDD	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Toxaphene	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	2,4-D	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	OXAMYL	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	38-STRONTIUM-90	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Simazine	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	2,4,5-TP	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Chlordane	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Picloram	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Dinoseb	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Methoxychlor	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Benzo(a)pyrene	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Radium-226	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb sulfone	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Carbofuran	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Radium-228	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Aldicarb	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Atrazine	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Arsenic	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Barium	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	CYANIDE	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Fluoride	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Mercury	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Dalapon	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Heptachlor	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Diquat	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Tritium	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Endothall	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Nickel	—	Archived
July 1, 1995 – September 30, 1995	Monitoring, Regular	Glyphosate	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	o-Dichlorobenzene	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Vinyl chloride	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Ethylbenzene	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Dinoseb	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	1,2-Dichloropropane	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Pentachlorophenol	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Trichloroethylene	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Styrene	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	CHLOROBENZENE	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	Tetrachloroethylene	—	Archived
April 1, 1995 – June 30, 1995	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Styrene	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Endrin	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Chlordane	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1995 – March 31, 1995	Monitoring, Regular	CHLOROBENZENE	—	Archived
July 1, 1994 – September 30, 1994	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 1994 – March 31, 1994	Monitoring, Regular	Toluene	—	Archived
July 1, 1993 – December 29, 2000	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

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