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City water profile

Quartzsite water quality

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

Median indexed hardness

502PPM

One indexed ZIP

Range 501.5–501.5 PPM

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

City summary

What the indexed records say

Quartzsite has 1 published ZIP profile across La Paz County. The indexed median is 502 PPM, compared with 241 PPM across Arizona.

Among the 133 Arizonacities with an indexed median, Quartzsite ranks #5from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. 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 hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
25.5 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Mar 8, 2016 to Apr 9, 2026.

ZIP directory

Water reports in Quartzsite

Open a ZIP for site-level provenance and measurements.

ZIP code

85346

Very Hard

501.5 PPM

Nearest site
25.5 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Quartzsite Town Of

PWSID AZ0415346

Groundwater
System population served
2,761
Last reported
May 14, 2026

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

Cs Q Mountain Water Company

PWSID AZ0415096

Groundwater
System population served
1,224
Last reported
May 14, 2026

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

88 Shades Rv Park

PWSID AZ0415435

Groundwater
System population served
488
Last reported
May 14, 2026

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

Q Mountain Vista Mhp

PWSID AZ0415509

Groundwater
System population served
440
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
ChlorineAZ0415435Mar 1, 2026Archived
ChlorineAZ0415435Feb 1, 2026Archived
ChlorineAZ0415435Jan 1, 2026Archived
Lead and Copper RuleAZ0415096Jan 1, 2025Resolved
ChlorineAZ0415346Jul 1, 2024Resolved
Lead and Copper RuleAZ0415346Jan 1, 2024Resolved
ChlorineAZ0415346Oct 1, 2023Resolved
Lead and Copper RuleAZ0415096Oct 1, 2023Resolved
ChlorineAZ0415346Apr 1, 2022Resolved
Revised Total Coliform RuleAZ0415096Mar 1, 2022Resolved

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 Quartzsite

Is the water hard?

The indexed city median is 502 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.