San Miguel County, New Mexico — public water systems
At a glance
42 active public water systems are filed under San Miguel County, New Mexico in EPA's SDWIS records, together reporting 23,678 people served. The largest is Las Vegas (City of), which reports serving 14,530 people. 26 are community water systems serving people where they live; the other 16 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
42
Population served
23.7K
Community systems
26
Groundwater share
90.5%
How does San Miguel County compare with other New Mexico counties?
San Miguel County has the 10th-most active public water systems among the 49 counties listed for active New Mexico systems in EPA records; among the 31 with 3 or more systems, the median has 23. Its systems report 23,678 people served in total, the 19th-largest county figure in the state and 1.1% of the statewide total. The average system here reports serving 564 people, well below the New Mexico average of 1,885. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does San Miguel County's drinking water come from?
By primary water source, San Miguel County's active systems draw on groundwater (36, 86%), surface water (3, 7.1%), groundwater under influence of surface water (1, 2.4%) and purchased surface water (1, 2.4%). Overall, 90% rely mainly on groundwater (including purchased groundwater) and 9.5% on surface water, compared with 93% and 7.2% across New Mexico. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Las Vegas (City of), draws primarily on surface water.
What kinds of water systems operate in San Miguel County?
San Miguel County's active systems break down as 26 community systems (62%), 4 non-transient non-community systems (9.5%) and 12 transient non-community systems (29%). 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. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as local government (62%), private (21%), state government (12%) and federal government (4.8%).
Water systems in San Miguel County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Las Vegas (City of) | San Miguel | 14,530 | Community | Surface water |
| 2 | Pecos Water System | San Miguel | 2,133 | Community | Groundwater |
| 3 | Pendaries Mdwca | San Miguel | 500 | Community | Groundwater |
| 4 | Conchas Dam State Park Northside | San Miguel | 450 | Transient non-community | Surface water |
| 5 | East Pecos Mdwca | San Miguel | 413 | Community | Groundwater |
| 6 | Pendaries Rv Resort | San Miguel | 405 | Non-transient non-community | Purchased groundwater |
| 7 | Ilfeld Mdwca | San Miguel | 400 | Community | Groundwater |
| 8 | Las Vegas Koa | San Miguel | 350 | Transient non-community | Groundwater |
| 9 | United World College | San Miguel | 350 | Non-transient non-community | Purchased surface water |
| 10 | Pecos Dairy Queen | San Miguel | 300 | Transient non-community | Groundwater |
| 11 | Pecos National Historical Park-Admin | San Miguel | 300 | Transient non-community | Groundwater |
| 12 | Villanueva Mdwca | San Miguel | 268 | Community | Groundwater |
| 13 | Big Mesa Water Mdwca | San Miguel | 250 | Community | Surface water |
| 14 | Tecolotito Mdwca | San Miguel | 246 | Community | Groundwater |
| 15 | San Jose Mdwca | San Miguel | 200 | Community | Groundwater |
| 16 | La Pasada Mdwca | San Miguel | 191 | Community | Groundwater |
| 17 | Sena Mdwca | San Miguel | 180 | Community | Groundwater |
| 18 | El Porvenir Christian Camp | San Miguel | 175 | Transient non-community | Groundwater |
| 19 | Camp Blue Haven | San Miguel | 150 | Transient non-community | Groundwater |
| 20 | San Juan Mdwca | San Miguel | 136 | Community | Groundwater |
| 21 | North San Ysidro Mdwca | San Miguel | 133 | Community | Groundwater |
| 22 | Valley Elementary and Middle School | San Miguel | 130 | Non-transient non-community | Groundwater |
| 23 | Tecolote Mdwca | San Miguel | 126 | Community | Groundwater |
| 24 | Villanueva State Park | San Miguel | 126 | Transient non-community | Groundwater |
| 25 | Griegos Market | San Miguel | 125 | Transient non-community | Groundwater |
| 26 | Gonzales Ranch Mdwca | San Miguel | 114 | Community | Groundwater |
| 27 | Ribera Mdwca | San Miguel | 113 | Community | Groundwater |
| 28 | El Ancon Mdwca | San Miguel | 112 | Community | Groundwater |
| 29 | Rowe Mdwca | San Miguel | 100 | Community | Groundwater |
| 30 | El Coruco Mdwca | San Miguel | 93 | Community | Groundwater |
| 31 | San Miguel Del Vado Mdwca | San Miguel | 79 | Community | Groundwater |
| 32 | Chapelle Mdwca | San Miguel | 60 | Community | Groundwater |
| 33 | Tres Lagunas Home Owners Association | San Miguel | 56 | Transient non-community | Groundwater under influence of surface water |
| 34 | El Creston Mdwca | San Miguel | 50 | Community | Groundwater |
| 35 | Mike Mateo Elementary School | San Miguel | 50 | Non-transient non-community | Groundwater |
| 36 | La Cueva Mdwca | San Miguel | 48 | Community | Groundwater |
| 37 | Gabaldon Mdwca | San Miguel | 47 | Community | Groundwater |
| 38 | Lower Colonias Mdwca | San Miguel | 40 | Community | Groundwater |
| 39 | Benedictine Monastery | San Miguel | 40 | Transient non-community | Groundwater |
| 40 | Pecos National Historic Park Visitor Cnt | San Miguel | 40 | Transient non-community | Groundwater |
| 41 | South San Ysidro Mdwca | San Miguel | 35 | Community | Groundwater |
| 42 | Lisboa Springs Fish Hatchery | San Miguel | 34 | Transient non-community | Groundwater |
San Miguel County water systems: frequently asked questions
How many public water systems are in San Miguel County, New Mexico?
EPA's SDWIS records file 42 active public water systems under San Miguel County, New Mexico: 26 community systems (62%), 4 non-transient non-community systems (9.5%) and 12 transient non-community systems (29%).
Who supplies drinking water in San Miguel County, NM?
The largest community water systems filed under San Miguel County are Las Vegas (City of) (14,530 people served), Pecos Water System (2,133 people served) and Pendaries Mdwca (500 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does San Miguel County's drinking water come from groundwater or surface water?
Of the 42 active public water systems in San Miguel County, 90% draw mainly on groundwater and 9.5% on surface water, counting purchased supplies. The largest system, Las Vegas (City of), uses surface water.
Where can I find a water quality report for San Miguel County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 26 community systems are filed under San Miguel County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in San Miguel County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More New Mexico water systems
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, “Public water systems in San Miguel County, New Mexico”, https://aquacensus.com/water-systems/new-mexico/san-miguel (data as of October 1, 2026).