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Water quality report

Tucson, AZ
water quality

Drinking water across Tucson’s community water systems, from EPA public records.

Check your exact address → Water Pulse
98
Excellent
City-wide average score

113

Systems serving this city

5

With PFAS detected (UCMR5)

2

Above an EPA PFAS limit

5

Unresolved health violations

Across all community water systems EPA records map to Tucson. PFAS figures are from EPA UCMR5 (2023–25) monitoring; not every system was sampled.

Community water systems serving Tucson

TUCSON CITY OF~732,906 people served 100› METROPOLITAN DWID~45,570 people served 100› FLOWING WELLS IRRIGATION DISTRICT~16,000 people served 73› TUCSON WATER CORONA DE TUCSON~10,217 people served 100› QUAIL CREEK WATER COMPANY~6,812 people served 100› AVRA WATER COOP INC~6,685 people served 100› METROPOLITAN DWID - DIABLO VILLAGE~5,542 people served 100› MARANA MUNICIPAL - PICTURE ROCKS~5,278 people served 100› MARANA MUNICIPAL - HARTMAN VISTAS~5,248 people served 47› MARANA MUNICIPAL - AIRLINE LAMBERT~4,568 people served 100› ADOC TUCSON~4,500 people served 85› RAY WATER COMPANY INC~4,495 people served 100› METROPOLITAN DWID - HUB~4,252 people served 100› SPANISH TRAIL WATER COMPANY~3,822 people served 100› SAGUARO WATER COMPANY~3,243 people served 100› VOYAGER WATER COMPANY~3,209 people served 100› GOODMAN WATER COMPANY~2,656 people served 100› VALLE VERDE WATER COMPANY - EAST~2,331 people served 100› TOWN OF HUACHUCA CITY~1,750 people served 100› SOUTHLAND UTILITIES - GOLDEN ACRES~1,614 people served 100› CEDAR GROVE WATER COMPANY~1,564 people served 100› LORD AZ WATER 2 - WINCHESTER TRAILS~1,304 people served 100› WATCO WATER~1,153 people served 100› CHAPARRAL WATER COMPANY~963 people served 100› RINCON COUNTRY EAST RV PARK~912 people served 100› RANCHO DEL CONEJO COMM WATER COOP~900 people served 100› METROPOLITAN DWID - E&T SYSTEM~880 people served 100› FAR HORIZONS EAST MHP~870 people served 100› GREENEHAVEN WATER COMPANY~807 people served 100› LAKEWOOD ESTATES WATER COMPANY~722 people served 100› MISSION PALMS APARTMENTS~720 people served 100› WINTERHAVEN WATER DEVELOPMENT~685 people served 100› LA CASITA WATER COMPANY 3~605 people served 100› ANWAY MANVILLE WATER COMPANY~576 people served 100› VISTA DEL NORTE MHP~554 people served 100› COLDWATER CANYON 1~541 people served 100› TRAILS WEST MHP~500 people served 100› BOWIE WID~489 people served 85› CAMPBELL ESTATES MHP~450 people served 100› THIM UTILITY COMPANY 2~445 people served 100› CACTUS COUNTRY RV RESORT~420 people served 100› PARK WATER COMPANY INC~416 people served 100› DIAMOND GROVE MOBILE HOME ESTATES~385 people served 100› LAZY C WATER SERVICE~359 people served 100› FEDERAL CORRECTIONAL INST~350 people served 100› BELLA CAPRI MHP~342 people served 100› SALOME WATER COMPANY~317 people served 70› THIM UTILITY COMPANY~310 people served 100› LOS ARBOLES MOBILE HOME PARK~303 people served 100› VALLE VERDE DEL NORTE~300 people served 100› MESALAND WATER COMPANY~294 people served 100› MT LEMMON DWID~290 people served 100› DRAGOON WATER COMPANY~283 people served 100› RIO VIEJO WATER~272 people served 100› TIERRA LINDA HOA WATER COMPANY~266 people served 100› RIO MERCADO WATER~266 people served 100› LA CASITA WATER COMPANY 2~261 people served 100› FAR HORIZONS MHP~258 people served 100› SIERRITA MOUNTAIN WATER COOP~258 people served 100› THIM UTILITY COMPANY - WELL 9~254 people served 100›

Tucson water FAQ

How is Tucson's water quality scored?

PurityRadar computes a 0–100 score from public EPA records for the community water systems serving Tucson. The city-wide figure shown is the average of those systems.

Where does the data come from?

EPA SDWIS — the federal Safe Drinking Water Information System — covering active community water systems and their health-based violations. Every figure traces back to that public record.

Is this a substitute for testing my tap?

No. System-level data can't account for your home's own plumbing (lead service lines, fixtures). For health decisions, test your tap with a certified lab and confirm with your utility.

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