Tapcensus

Water quality for ZIP code 85341

Pima County, Arizona, one of 51 ZIP codes in the county. 193 active public water systems serve the county; 127 had an EPA violation in the past three years.

Most likely your provider

Organ Pipe NM Headquarters AZ0410701 · Community water system · Ground water · Organ Pipe Nm
Serves 755 people Rules violated, past 3 years 3 Last sanitary survey Jan 16, 2026 Distance 4.7 mi
View system details EPA facility report

Other community water systems in Pima County

141 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Why Dwid
Why		 400 2 27.2 mi
Ajo Improvement Company
Ajo		 2,654 2 34.1 mi
Ajo Dwid
Ajo		 405 2 37.4 mi
Arizona Water CO Ajo
Ajo		 2,100 1 37.8 mi
Worden Water Company
Three Points		 60 6 87.0 mi
Thim Utility Company Rancho Vista
Tucson		 105 1 87.1 mi
GW Ocotillo Water Diamond Bell
Tucson		 649 0 87.9 mi
Thim Water Company 2
Tucson		 247 0 88.3 mi
Thim Utility Company Well 9
Three Points		 254 1 88.6 mi
Arivaca Townsite Water Coop
Arivaca		 150 0 89.0 mi
Metropolitan Dwid E&t System
Tucson		 880 2 89.1 mi
Thim Utility Company
Three Points		 310 0 89.6 mi
Thim Utility Company 2
Tucson		 445 1 89.8 mi
Rancho Sierrita Well Assoc
Tucson		 51 3 90.2 mi
GW Ocotillo Water Sierrita Foothills
Sahuarita		 79 0 90.2 mi
Raindance Water Coop
Tucson		 148 0 90.2 mi
Wells Fargo Water Company
Tucson		 86 1 90.4 mi
GW Saguaro Dist Water CO Amber Ann
Three Points		 93 1 90.6 mi
High Chaparral Water Coop
Tucson		 72 1 90.6 mi
GW Saguaro Dist Water CO Mirabell
Tucson		 162 2 90.7 mi
Wildflower Water Coop
Three Points		 157 1 90.7 mi
Desert Water Coop
Tucson		 150 3 90.8 mi
Rancho Tierra Blanca Poa
Marana		 126 0 90.8 mi
Sierrita Mountain Water Coop
Tucson		 258 4 90.9 mi
GW Saguaro Dist Water CO Tala Way
Tucson		 221 0 90.9 mi
All 142 community water systems in Pima County
Non-community systems in Pima County (51: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Lukeville Border Station
Lukeville 		45 1 0
Elkhorn Ranch
Sasabe 		40 1 0
Sasabe Border Village
Sasabe 		31 5 1
Thim Utility Corporation VFW
Three Points 		413 0 0
Pcnr Three Point
Three Points 		52 2 0
Bayer R&d Services LLC Marana
Marana 		160 2 0
Caterpillar INC
Green Valley 		200 0 0
Marana High School
Marana 		2,450 1 0
Marana Estes Elementary School
Marana 		2,000 1 0
White Stallion Guest Ranch
Tucson 		60 1 0
Sopori School Park
Tucson 		50 0 0
Calportland Rillito Cement Plant
Rillito 		184 4 2
Lil Abners Steakhouse
Tucson 		100 0 0
Silverbell Mining, LLC
Marana 		200 3 0
Marana Municipal Airport
Marana 		55 0 0
Asarco Mission Unit
Green Valley 		586 0 0
Greenfields Country Day School
Tucson 		163 6 0
University of Arizona
Tucson 		50,000 0 0
Salpointe Catholic High School
Tucson 		1,300 0 0
Redwood Lodge
Tucson 		25 1 0
Saint Phillips Plaza
Tucson 		220 2 0
Campbell Avenue Farms
Tucson 		65 0 0
Tucson Racquet & Fitness Club
Tucson 		330 3 1
Saguaro National Park
Tucson 		1,440 2 0
Pcnr Colossal Cave
Tucson 		210 1 0
Pcnr Gilbert Ray Tmp
Tucson 		150 2 0
Pcnr Motor Sports
Tucson 		100 0 0
Pcnr Picture Rocks
Tucson 		100 1 0
Pcnr Fairgrounds
Tucson 		87 0 0
Tucson Ready Mix Orange Grove
Tucson 		80 0 0
EL Mesquital Guest Ranch
Tucson 		25 0 0
Pcnr la Posta Quemada
Tucson 		25 0 0
Tucson Medical Center
Tucson 		3,000 4 1
Santa Catalina Catholic Church
Tucson 		212 2 0
UA Tech Park Rita Road
Tucson 		3,000 2 0
Hitda Training Center
Tucson 		35 0 0
AZ State Parks Catalina Mountain
Catalina 		330 1 0
Hot Rod Water
Vail 		90 3 0
Tucson Country Day School
Tucson 		800 0 0
Vail School District Elementary School
Vail 		1,680 3 0
Latter Day Saints Church
Summerhaven 		200 4 1
Soldier Camp Permittees
Summerhaven 		30 3 0
Usfs Cnf Ski Lodge
Mount Lemmon 		350 0 0
Tanque Verde Guest Ranch
Tucson 		150 2 0
Usfs Cnf Sabino Canyon Stop 8
Sabino Canyon 		550 0 0
Usfs Cnf Loma Linda
Mount Lemmon 		350 1 0
Camp Whispering Pines
Mount Lemon 		240 0 0
Camp Lawton
Mount Lemmon 		200 2 0
Caballo Loco Ranch
Sasabe 		150 3 1
Buenos Aires National Wildlife Refuge
Sasabe 		54 7 1
All non-community systems
About this data

Water systems are matched to Pima County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Arizona records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.