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County · Arizona

Cochise County, Arizona: drinking water records

Explore EPA records for 53 community water systems across 21 ZIP codes in Cochise County, then find water-testing resources and available recent monitoring-station readings.

In focus53Community water systems
Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 8 of the 53 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

8
systems in EPA's PFAS survey
4
systems where PFAS was found
2
systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses
13
systems that have reached the lead action level
36
systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 53 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water systemPeople servedPFAS survey resultsPFAS foundHealth-based violationsLead, 9 in 10 homes at or below
Us Army Fort Huachuca AZ040207815,603300610 ppb
Pueblo del Sol Water Company AZ040204412,804240080 ppb
Arizona Water Co - Sierra Vista AZ04020049,175420210 ppb
Arizona Water Co - Bisbee AZ04020018,70760520 ppb
Bella Vista City Water System AZ040201020,045900101 ppb
Douglas City of AZ040201416,656360000 ppb
Benson, City of Water System AZ04020055,355240000 ppb
City of Willcox AZ04020353,23660000 ppb
Bisbee Douglas Intl Airport AZ04020612,6000010 ppb
Town of Huachuca City AZ04020191,7500010 ppb
Pomerene Dwid AZ04020121,6180080 ppb
Southland Utilities - Golden Acres AZ04020291,6140030 ppb
Tombstone City of AZ04020331,5450050 ppb
Mescal Lakes Water System AZ04020521,3900010 ppb
Clear Springs Utility Main AZ04020081,3850010 ppb
St David Dwid AZ04020391,2550020 ppb
Elfrida Wid AZ04020178000077 ppb
Naco Water Co Main AZ04020246580010 ppb
East Slope Water - West AZ04020946550016.9 ppb
Bowie Wid AZ04020064890023 ppb
Cs Winchester Water Company AZ04021104020020 ppb
Cs Holiday Water Company AZ04020183950011 ppb
Sierra Vista Mh Village AZ04021013280010.3 ppb
San Simon Dwid AZ040202731200370 ppb
Willow Lakes Property Owners Assoc AZ04020421900071 ppb
Whetstone Ranch Water System AZ04021251830013 ppb
Monte Vista Water Company AZ040204315000114.6 ppb
Cloud Nine Water Company AZ04020091430020 ppb
Cs Sunizona Water Company AZ04020361360010 ppb
Empirita Water Company AZ04021221200011.5 ppb
Stratman Water Company AZ04020751050010 ppb
Sweet Springs Mobile Home Park AZ0402327850010.8 ppb
Twin Buttes RV, LLC AZ04023607900215 ppbat or above the action level
Naco Estates AZ0402345750031 ppb
Mcneal Water Company AZ0402016660014.1 ppb
Ashley Rose MHP AZ0402105500020 ppb
Whetstone Village MHP AZ04021045000112 ppb
Clear Springs Utility Well 6 AZ0402049480019 ppb
Desert Winds Mobile Park AZ0402353340022 ppb
La Costa Water Users Assoc AZ0402041300027 ppb
Bella Vista Water South AZ04020072,1780001.4 ppb
East Slope Water Company AZ04020281,9800000 ppb
Southern Sunrise Wc Cochise Horseshoe AZ04020111,5880000 ppb
Whetstone Dwid AZ04020389400000.7 ppb
Southern Sunrise Wc Miracle Valley AZ04020236200000 ppb
Northern Sunrise Wc Coronado AZ04020135530000 ppb
Northern Sunrise Wc Mustang Crystal AZ04020543150000 ppb
Dragoon Water Company AZ04020152830000 ppb
Naco Water Co Bisbee AZ04021121380000 ppb
Cochise College Park Water Assoc AZ0402040830000 ppb
Sulger Water Company 2 AZ0402120670000.9 ppb
Ntm Aviation AZ0402401470000.5 ppb
Palominas Water Sewer Co AZ0402026270000 ppb

Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means

USGS · Monitoring stations

The water, more recently.

Available station readings in Cochise County, Arizona. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

Station coverage and available measurements vary by county.

Explore USGS Water Data
How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed · Source updated

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Cochise County

21ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

  • Benson
  • Bisbee
  • Bowie
  • Douglas
  • Dragoon
  • Elfrida
  • McNeal
  • Naco
  • Pirtleville
  • San Simon
  • Sierra Vista
  • Sierra Vista Southeast
  • Sunizona
  • Tombstone
  • Whetstone
Explore water-system recordsFind water-testing resources
View ZIP areas and understand coverage
  • 85602Benson
  • 85603Bisbee
  • 85605Bowie
  • 85606
  • 85607Douglas
  • 85608Douglas
  • 85609Dragoon
  • 85610Elfrida
  • 85613Sierra Vista
  • 85615Sierra Vista Southeast
  • 85616Whetstone
  • 85617McNeal
  • 85620Naco
  • 85625Sunizona
  • 85626Pirtleville
  • 85627
  • 85630Benson
  • 85632San Simon
  • 85635Sierra Vista
  • 85638Tombstone
  • 85650Sierra Vista Southeast

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in 4 of the 8 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter13 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Cochise County

All Arizona counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.

Keep exploring

Every record tells
part of the story.

Find a place. Read the measurements.
Understand the context.

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