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City water profile

Keystone Heights water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Keystone Heights, Florida.

Median indexed hardness

244PPM

One indexed ZIP

Range 244–244 PPM

State comparison
36 PPM below
State hardness rank
#174 of 290
Matched utilities
3
Active health records
1

City summary

What the indexed records say

Keystone Heights has 1 published ZIP profile across Clay County. The indexed median is 244 PPM, compared with 280 PPM across Florida.

Among the 290 Floridacities with an indexed median, Keystone Heights ranks #174from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 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
27.4 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Nov 20, 2019 to Jan 21, 2026.

ZIP directory

Water reports in Keystone Heights

Open a ZIP for site-level provenance and measurements.

ZIP code

32656

Very Hard

244 PPM

Nearest site
27.4 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Keystone Postmaster Grid

PWSID FL2100610

Groundwater
System population served
5,092
Last reported
May 18, 2026

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

Geneva Lake Estates

PWSID FL2041320

Groundwater
System population served
367
Last reported
May 18, 2026

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

Lake Geneva Mhp

PWSID FL2100636

Groundwater
System population served
95
Last reported
May 18, 2026

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

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Consumer Confidence RuleFL2100636Jul 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSFL2100636Feb 1, 2025Unaddressed · health-based
LEAD AND COPPER RULE REVISIONSFL2100636Feb 1, 2025Unaddressed
E. COLIFL2041320Mar 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 Keystone Heights

Is the water hard?

The indexed city median is 244 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.