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Montezuma County, Colorado — public water systems

At a glance

17 active public water systems are filed under Montezuma County, Colorado in EPA's SDWIS records, together reporting 31,691 people served. The largest is Montezuma Wc, which reports serving 13,797 people. 10 are community water systems serving people where they live; the other 7 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

17

Population served

31.7K

Community systems

10

Groundwater share

35.3%

How does Montezuma County compare with other Colorado counties?

Montezuma County has the 36th-most active public water systems among the 113 counties listed for active Colorado systems in EPA records; among the 65 with 3 or more systems, the median has 18. Its systems report 31,691 people served in total, the 22nd-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 1,864 people, about half of the Colorado average of 3,400. 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 Montezuma County's drinking water come from?

By primary water source, Montezuma County's active systems draw on surface water (6, 35%), purchased surface water (5, 29%), groundwater (5, 29%) and groundwater under influence of surface water (1, 5.9%). Overall, 35% rely mainly on groundwater (including purchased groundwater) and 65% on surface water, compared with 74% and 26% across Colorado. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. The county's largest system, Montezuma Wc, draws primarily on surface water.

What kinds of water systems operate in Montezuma County?

Montezuma County's active systems break down as 10 community systems (59%), 1 non-transient non-community systems (5.9%) and 6 transient non-community systems (35%). 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 private (53%), local government (29%) and federal government (18%).

Water systems in Montezuma County

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Active public water systems in Montezuma County, Colorado
#Water systemCountyPopulation servedTypeSource
1Montezuma WcMontezuma13,797CommunitySurface water
2Cortez City ofMontezuma8,770CommunitySurface water
3Mesa Verde National ParkMontezuma3,177Non-transient non-communitySurface water
4Dolores Town ofMontezuma1,626CommunitySurface water
5Mancos Town ofMontezuma1,390CommunitySurface water
6Mancos Rural Water CompanyMontezuma1,300CommunitySurface water
7Montezuma Cnty Wd No 1Montezuma490CommunityPurchased surface water
8Vista Verde VillageMontezuma200CommunityPurchased surface water
9Oak Meadows MHPMontezuma200CommunityPurchased surface water
10Priest Gulch Rv and CampgroundMontezuma190Transient non-communityGroundwater
11Elegant Hills MHPMontezuma170CommunityPurchased surface water
12Neighbors of 7th Street MHPMontezuma96CommunityPurchased surface water
13Circle K RanchMontezuma80Transient non-communityGroundwater
14House Creek CgMontezuma80Transient non-communityGroundwater
15Stoner Rv ResortMontezuma58Transient non-communityGroundwater
16Transfer CgMontezuma40Transient non-communityGroundwater
17Echo Basin RanchMontezuma27Transient non-communityGroundwater under influence of surface water

Montezuma County water systems: frequently asked questions

How many public water systems are in Montezuma County, Colorado?

EPA's SDWIS records file 17 active public water systems under Montezuma County, Colorado: 10 community systems (59%), 1 non-transient non-community systems (5.9%) and 6 transient non-community systems (35%).

Who supplies drinking water in Montezuma County, CO?

The largest community water systems filed under Montezuma County are Montezuma Wc (13,797 people served), City of Cortez (8,770 people served) and Town of Dolores (1,626 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 Montezuma County's drinking water come from groundwater or surface water?

Of the 17 active public water systems in Montezuma County, 35% draw mainly on groundwater and 65% on surface water, counting purchased supplies. The largest system, Montezuma Wc, uses surface water.

Where can I find a water quality report for Montezuma 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. 10 community systems are filed under Montezuma 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 Montezuma 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 Colorado 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 Montezuma County, Colorado”, https://aquacensus.com/water-systems/colorado/montezuma (data as of October 1, 2026).