Public water system · NM3500109
ActiveRosedale Mdwca
At a glance
Rosedale Mdwca (PWSID NM3500109) is an active community water system in Grant County, New Mexico. It reports serving 254 people through 110 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
254
Service connections
110
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Rosedale Mdwca compare with other water systems in Grant County?
By EPA's size categories, Rosedale Mdwca is a very small system (500 people or fewer). Grant County has 28 active public water systems. Its population served is well below the county average of 972 people per system, and accounts for 0.9% of the 27,216 people reported by systems filed under the county. Across New Mexico, the 1,165 active systems average 1,885 people each. Nationally, the average active community water system reports serving 6,703 people, so Rosedale Mdwca 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. New Mexico has 645 active community water systems, 55% of the state's 1,165 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 62 New Mexico systems (5.3%) list purchased groundwater as their primary source.
Who owns and regulates Rosedale Mdwca?
EPA lists Rosedale Mdwca as owned by a local government. The NM state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 14 of the 28 active systems in Grant County (50%) are also owned by a local government.
Does Rosedale Mdwca have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2016. The violations listed here began between April 2014 and January 2016. By type: 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminants or rules involved are Public Notice and Total coliform bacteria (TCR). EPA lists 2 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 |
|---|---|---|---|---|
| 2016-01-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 2 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.
Rosedale Mdwca: frequently asked questions
Who runs Rosedale Mdwca?
Rosedale Mdwca (PWSID NM3500109) is a community water system owned by a local government. It is regulated by the NM state drinking water program.
How many people does Rosedale Mdwca serve?
Rosedale Mdwca reports serving 254 people through 110 service connections in Grant County, New Mexico.
Where does Rosedale Mdwca get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Rosedale Mdwca have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2016. 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 Rosedale Mdwca'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 2 violations for this system; none is health-based, and the most recent began in January 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the NM state drinking water program.
Where can I find Rosedale Mdwca's water quality report?
As a community water system, Rosedale Mdwca 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 Grant County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Silver City Water System | Grant | 14,400 | Community | Groundwater |
| Bayard Municipal Water System | Grant | 2,616 | Community | Groundwater |
| Santa Clara Water System | Grant | 1,682 | Community | Groundwater |
| Hurley, Town of | Grant | 1,577 | Community | Purchased groundwater |
| Arenas Valley Mdwca | Grant | 1,204 | Community | Purchased groundwater |
| Freeport Mcmoran Chino Mines | Grant | 1,050 | 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, “Rosedale Mdwca, PWSID NM3500109, New Mexico”, https://aquacensus.com/water-systems/new-mexico/rosedale-mdwca-nm3500109 (data as of October 1, 2026).