NASHUA, NH · Rockingham County
GREAT BAY WATER SYSTEM Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
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 New Hampshire’s official records. Always confirm current status with New Hampshire before making decisions based on this information.
System facts
- System ID (PWSID)
- NH1732030
- System type
- Community Water System
- Population served
- 218
- Service connections
- 87
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Styrene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Toluene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—2,4-D
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Heptachlor
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Glyphosate
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Chlordane
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Benzene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Toluene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—Styrene
January 1, 1995 – December 31, 1995
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Chlordane
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Styrene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Benzene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—2,4-D
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Heptachlor
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—LASSO
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Picloram
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Glyphosate
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1994 – December 31, 1994
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
October 1, 1992 – October 31, 1992
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
August 1, 1991 – August 31, 1991
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 |
|---|---|---|---|---|
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 1995 – December 31, 1995 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 1994 – December 31, 1994 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| October 1, 1992 – October 31, 1992 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Archived |
| August 1, 1991 – August 31, 1991 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- July 15, 1996State Violation/Reminder Notice122 linked violations
- November 21, 1991State Public Notification requested11 linked violations
Contact
PENNICHUCK WATER WORKS INC
Phone not on record
NASHUA, NH 03064