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ROCK RIMMON COOPERATIVE

New Hampshire — Community Water System — PWSID: NH0583050

System Information

PWSIDNH0583050
System NameROCK RIMMON COOPERATIVE
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region01
Serves SchoolNo
WholesalerNo
First ReportedMar 2, 1989
Last ReportedDec 15, 2025

Location & Contact

StateNew Hampshire
CityEAST HAMPSTEAD
ZIP Code03826
AddressPO BOX 183
OrganizationROCK RIMMON COOPERATIVE INC
Phone—

Population & Service

Population Served200
Service Connections121

Drinking Water Violations (132)

This water system has 132 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Nov 1, 2021 Dec 1, 2021 Groundwater Rule TT Yes No — — — Resolved Dec 1, 2021 Ground Water Rule
Nov 1, 2021 Dec 1, 2021 Groundwater Rule TT Yes No — — — Resolved Dec 1, 2021 Ground Water Rule
Nov 1, 2021 Dec 1, 2021 Groundwater Rule TT Yes No — — — Resolved Dec 1, 2021 Ground Water Rule
Nov 1, 2021 Dec 1, 2021 Groundwater Rule TT Yes No — — — Resolved Dec 1, 2021 Ground Water Rule
Oct 1, 2019 Nov 1, 2019 Groundwater Rule TT Yes No — — — Resolved Nov 1, 2019 Ground Water Rule
Oct 1, 2019 Nov 1, 2019 Groundwater Rule TT Yes No — — — Resolved Nov 1, 2019 Ground Water Rule
Oct 1, 2019 Nov 1, 2019 Groundwater Rule TT Yes No — — — Resolved Nov 1, 2019 Ground Water Rule
Oct 1, 2019 Nov 1, 2019 Groundwater Rule TT Yes No — — — Resolved Nov 1, 2019 Ground Water Rule
Sep 1, 2018 — Groundwater Rule TT Yes No — — — Resolved Oct 1, 2018 Ground Water Rule
Sep 1, 2018 — Groundwater Rule TT Yes No — — — Resolved Oct 1, 2018 Ground Water Rule
Oct 1, 2017 Jan 1, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Jan 1, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Jan 1, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2017 Radionuclides and Revised Rad Rule
Oct 1, 2017 Dec 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2017 Radionuclides and Revised Rad Rule
Oct 1, 2017 Dec 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2017 Radionuclides and Revised Rad Rule
Oct 1, 2017 Jan 1, 2018 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 1, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 3, 2017 — Public Notice Other No No — — — Resolved May 15, 2017 Public Notice Rule and Revised PN Rule
May 3, 2017 — Public Notice Other No No — — — Resolved May 15, 2017 Public Notice Rule and Revised PN Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Styrene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Styrene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2017 Volatile Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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