Public water system · NH0511010
ActiveConway Water and Sewer
At a glance
Conway Water and Sewer (PWSID NH0511010) is an active community water system in Carroll County, New Hampshire. It reports serving 2,745 people through 962 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2021.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,745
Service connections
962
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Conway Water and Sewer compare with other water systems in Carroll County?
By EPA's size categories, Conway Water and Sewer is a small system (501 to 3,300 people). Carroll County has 366 active public water systems, and Conway Water and Sewer is the 4th-largest of them by population served. Its population served is about 12 times the county average of 221 people per system, and accounts for 3.4% of the 81,013 people reported by systems filed under the county. Across New Hampshire, the 2,450 active systems average 508 people each. Nationally, the average active community water system reports serving 6,703 people, so Conway Water and Sewer is about 59% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. New Hampshire has 706 active community water systems, 29% of the state's 2,450 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,374 New Hampshire systems (97%) list groundwater as their primary source.
Who owns and regulates Conway Water and Sewer?
EPA lists Conway Water and Sewer as owned by a local government. The NH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 23 of the 366 active systems in Carroll County (6.3%) are also owned by a local government.
Does Conway Water and Sewer have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2021. The violations listed here began between July 2007 and April 2021. By type: 9 monitoring and reporting and 3 public notice, recordkeeping or other. The contaminant or rule involved most often is Chlorine (6 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-07-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2009-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2008-03-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Conway Water and Sewer: frequently asked questions
Who runs Conway Water and Sewer?
Conway Water and Sewer (PWSID NH0511010) is a community water system owned by a local government. It is regulated by the NH state drinking water program.
How many people does Conway Water and Sewer serve?
Conway Water and Sewer reports serving 2,745 people through 962 service connections in Carroll County, New Hampshire.
Where does Conway Water and Sewer get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Conway Water and Sewer have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2021. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Conway Water and Sewer's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the NH state drinking water program.
Where can I find Conway Water and Sewer's water quality report?
As a community water system, Conway Water and Sewer must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Carroll County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wolfeboro Water and Sewer | Carroll | 6,000 | Community | Surface water |
| North Conway Water Pct | Carroll | 5,500 | Community | Groundwater |
| Lower Bartlett Water Pct | Carroll | 3,850 | Community | Groundwater |
| Paradise Shores | Carroll | 2,060 | Community | Groundwater |
| Sanbornville Water Dept | Carroll | 1,425 | Community | Groundwater |
| Westward Shores Campground | Carroll | 1,225 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Conway Water and Sewer, PWSID NH0511010, New Hampshire”, https://aquacensus.com/water-systems/new-hampshire/conway-water-and-sewer-nh0511010 (data as of October 1, 2026).