HENNIKER, NH · Merrimack County
COGSWELL SPRINGS WATER WORKS Water System
Consumer Confidence Report status
COGSWELL SPRINGS WATER WORKS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for COGSWELL SPRINGS WATER WORKS.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- NH1121010
- System type
- Community Water System
- Population served
- 3,000
- Service connections
- 581
- Ownership
- local government
- Water source
- groundwater (wells)
COGSWELL SPRINGS WATER WORKS is one of 101 community water systems in New Hampshire in the 501 to 3,300 people size category, serving 3,000 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- June 22, 2017State Compliance achieved43 linked violations
Common questions
Is COGSWELL SPRINGS WATER WORKS required to publish a Consumer Confidence Report?
- Yes. COGSWELL SPRINGS WATER WORKS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is COGSWELL SPRINGS WATER WORKS’s next Consumer Confidence Report due?
- COGSWELL SPRINGS WATER WORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COGSWELL SPRINGS WATER WORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for COGSWELL SPRINGS WATER WORKS.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
COGSWELL SPRINGS WATER WORKS
Phone not on record
HENNIKER, NH 03242