Public water system · VT0020744
ActiveDerby MHP
At a glance
Derby MHP (PWSID VT0020744) is an active community water system in Orleans County, Vermont. It reports serving 265 people through 101 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
265
Service connections
101
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Derby MHP compare with other water systems in Orleans County?
By EPA's size categories, Derby MHP is a very small system (500 people or fewer). Orleans County has 73 active public water systems. Its population served is about 27% below the county average of 364 people per system, and accounts for 1% of the 26,600 people reported by systems filed under the county. Across Vermont, the 1,357 active systems average 477 people each. Nationally, the average active community water system reports serving 6,703 people, so Derby MHP is well 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. Vermont has 405 active community water systems, 30% of the state's 1,357 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 50 Vermont systems (3.7%) list purchased surface water as their primary source.
Who owns and regulates Derby MHP?
EPA lists Derby MHP as owned by a state government. The VT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 73 active systems in Orleans County (1.4%) are also owned by a state government.
Does Derby MHP have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2014. The violations listed here began between July 2009 and April 2014. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Chlorine (4 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2014-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2013-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
All 5 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.
Derby MHP: frequently asked questions
Who runs Derby MHP?
Derby MHP (PWSID VT0020744) is a community water system owned by a state government. It is regulated by the VT state drinking water program.
How many people does Derby MHP serve?
Derby MHP reports serving 265 people through 101 service connections in Orleans County, Vermont.
Where does Derby MHP get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Derby MHP have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2014. 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 Derby MHP'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. EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the VT state drinking water program.
Where can I find Derby MHP's water quality report?
As a community water system, Derby MHP 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 Orleans County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jay Peak Water System | Orleans | 6,740 | Community | Groundwater |
| Newport City Water System | Orleans | 4,766 | Community | Groundwater |
| Derby Center Water System | Orleans | 1,400 | Community | Surface water |
| Barton Water System | Orleans | 950 | Community | Surface water |
| Derby Line Village Water District | Orleans | 897 | Community | Groundwater |
| North Troy Water System | Orleans | 864 | 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, “Derby MHP, PWSID VT0020744, Vermont”, https://aquacensus.com/water-systems/vermont/derby-mhp-vt0020744 (data as of October 1, 2026).