Community Water System · PWSID NH0583050

Rock Rimmon Cooperative

Serves 200 peopleGroundwaterOwner: PrivateEast Hampstead, New Hampshire
Nothing open right now.

On record since 2008: 47 violations. 14 over the limit · 3 treatment lapses · 25 missed or late tests · 5 notices or reports. Most recent began 2021-11-01.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

14Over the limit
3Treatment lapse
25Missed or late test
5Notice or report

More violations on record than 99% of active water systems in New Hampshire. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052008 · Notice or report: 120102013 · Over the limit: 12014 · Over the limit: 42014 · Over the limit: 42015 · Over the limit: 62015 · Over the limit: 62015 · Notice or report: 120152016 · Missed or late test: 12016 · Notice or report: 22017 · Over the limit: 32017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Missed or late test: 242017 · Notice or report: 12018 · Treatment lapse: 12019 · Treatment lapse: 120202021 · Treatment lapse: 12025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
30% over the limit · 146% treatment lapse · 353% missed or late test · 2511% notice or report · 5

Across New Hampshire, 37% of violations are missed or late tests and 7% are water over a limit.

Every violation on record

  1. 2021-11-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  2. 2019-10-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  3. 2018-09-01Groundwater RuleFailure To Address DeficiencyBack in compliance
  4. 2017-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2017-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  6. 2017-05-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2017-04-01StyreneMonitoring, RegularBack in compliance
  8. 2017-04-01EthylbenzeneMonitoring, RegularBack in compliance
  9. 2017-04-01TolueneMonitoring, RegularBack in compliance
  10. 2017-04-01BenzeneMonitoring, RegularBack in compliance
  11. 2017-04-01ChlorobenzeneMonitoring, RegularBack in compliance
  12. 2017-04-01TetrachloroethyleneMonitoring, RegularBack in compliance
  13. 2017-04-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  14. 2017-04-01TrichloroethyleneMonitoring, RegularBack in compliance
  15. 2017-04-011,2-DichloropropaneMonitoring, RegularBack in compliance
  16. 2017-04-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  17. 2017-04-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  18. 2017-04-011,2-DichloroethaneMonitoring, RegularBack in compliance
  19. 2017-04-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  20. 2017-04-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  21. 2017-04-01Vinyl chlorideMonitoring, RegularBack in compliance
  22. 2017-04-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  23. 2017-04-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  24. 2017-04-01DichloromethaneMonitoring, RegularBack in compliance
  25. 2017-04-01Xylenes, TotalMonitoring, RegularBack in compliance
Show the other 22 entries
  1. 2017-04-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  2. 2017-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  3. 2017-04-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  4. 2017-04-01Combined UraniumMonitoring, RegularBack in compliance
  5. 2017-04-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  6. 2017-01-01Combined Radium (-226 and -228)MCL, Single Samplemeasured 7.50 PCI/LBack in compliance
  7. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2016-04-01Revised Total Coliform RuleRPTBack in compliance
  9. 2016-04-01Revised Total Coliform RuleMONBack in compliance
  10. 2015-10-01ArsenicMCL, Averagemeasured 0.0220 MG/LBack in compliance
  11. 2015-07-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2015-07-01ArsenicMCL, Averagemeasured 0.0300 MG/LBack in compliance
  13. 2015-04-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  14. 2015-04-01ArsenicMCL, Averagemeasured 0.0240 MG/LBack in compliance
  15. 2015-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  16. 2015-01-01ArsenicMCL, Averagemeasured 0.0250 MG/LBack in compliance
  17. 2014-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  18. 2014-10-01ArsenicMCL, Averagemeasured 0.0320 MG/LBack in compliance
  19. 2014-07-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  20. 2014-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  21. 2013-10-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/LBack in compliance
  22. 2008-02-26Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served200
Service connections121
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityEast Hampstead
EPA ZIP on file03826

Areas served

  • Danville, Rockingham County

Reading this record

Rock Rimmon Cooperative is a community water system that draws from groundwater and serves about 200 people in East Hampstead, New Hampshire. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.