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City water profile

Green Valley water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Green Valley, Arizona.

Median indexed hardness

245PPM

2 indexed ZIPs

Range 245–245 PPM

State comparison
4 PPM above
State hardness rank
#68 of 133
Matched utilities
8
Active health records
0

City summary

What the indexed records say

Green Valley has 2 published ZIP profiles across Pima County. The indexed median is 245 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Green Valley ranks #68from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

The 245–245 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
35.9 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jan 11, 2016 to Mar 31, 2026.

ZIP directory

Water reports in Green Valley

Open a ZIP for site-level provenance and measurements.

Public water systems

Utilities associated with this city

Community Wc Of Green Valley

PWSID AZ0410004

Groundwater
System population served
22,085
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Green Valley Dwid

PWSID AZ0410157

Groundwater
System population served
8,687
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Quail Creek Water Company

PWSID AZ0410262

Groundwater
System population served
6,812
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Gw Farmers Water Co - Continental

PWSID AZ0410049

Groundwater
System population served
5,592
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Gw Saguaro Dist Water Co - Las Quintas

PWSID AZ0410064

Groundwater
System population served
3,720
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Gw Farmers Water Co - Sahuarita

PWSID AZ0410048

Groundwater
System population served
492
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Valle Verde Del Norte

PWSID AZ0410152

Groundwater
System population served
300
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Mountain View Rv Ranch

PWSID AZ0412306

Groundwater
System population served
100
Last reported
May 14, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleAZ0410157Jan 1, 2026Unaddressed
Lead and Copper RuleAZ0410152Oct 1, 2025Unaddressed
Public NoticeAZ0412306Dec 20, 2024Resolved
LEAD AND COPPER RULE REVISIONSAZ0412306Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSAZ0412306Oct 17, 2024Resolved · health-based
ChlorineAZ0410049Aug 1, 2024Resolved
TTHMAZ0410157Jul 1, 2024Resolved
Total Haloacetic Acids (HAA5)AZ0410157Jul 1, 2024Resolved
ChlorineAZ0410152Feb 1, 2024Resolved
Lead and Copper RuleAZ0410064Oct 1, 2023Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Green Valley

Is the water hard?

The indexed city median is 245 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.