DERRY, NH · Rockingham County
CENTENNIAL ESTATES 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)
- NH0613060
- System type
- Community Water System
- Population served
- 140
- Service connections
- 56
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2012 – April 30, 2012
ArchivedMonitoring, Regular
—OXAMYL
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Simazine
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Picloram
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—2,4-D
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Chlordane
January 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Barium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Cadmium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Selenium
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Xylenes, Total
July 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—DICHLOROMETHANE
July 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—o-Dichlorobenzene
July 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
July 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
July 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—Styrene
July 1, 1996 – September 30, 1996
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, 2012 – April 30, 2012 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Thallium, Total | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| July 1, 1996 – September 30, 1996 | Monitoring, Regular | Styrene | — | 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.
Contact
CENTENNIAL ESTATES COOPERATIVE INC
Phone not on record
DERRY, NH 03038