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City water profile

Water hardness in Dilley

Find official utility reports, understand hardness, and check the water system serving your home in Dilley, Texas.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
1
Active health records
1

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →
Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

City Of Dilley

TX0820001 · Groundwater · 4,505 people served system-wide

A municipal system, in-state city, and served county all agree with this Census ZCTA.

1 reported active health-based record(s) for this system

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
5.0e-4 mg/L
Action level
0.015 mg/L

3% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (10)
Imported violation history for City Of Dilley
RuleStatusPeriod
Consumer Confidence RuleResolvedJul 1, 2025 to Mar 12, 2026
Public NoticeResolvedMay 1, 2025 to Jun 11, 2025
Public NoticeResolvedOct 28, 2024 to Jun 12, 2025
LEAD AND COPPER RULE REVISIONSHealth-basedUnaddressedOct 17, 2024
LEAD AND COPPER RULE REVISIONSUnaddressedOct 17, 2024
Consumer Confidence RuleResolvedJul 2, 2024 to Mar 3, 2026
Public NoticeResolvedApr 14, 2024 to Jun 12, 2025
Revised Total Coliform RuleHealth-basedResolvedFeb 24, 2024 to May 8, 2024
E. COLIResolvedAug 24, 2023 to Oct 21, 2024
Revised Total Coliform RuleResolvedAug 1, 2021 to Aug 31, 2021

City summary

What the indexed records say

Dilley has 1 published ZIP profile across Frio County. The regional-evidence median is 442 PPM. The city does not meet the stricter comparison standard.

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
13.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jan 21, 2016 to Feb 16, 2016.

ZIP directory

Water reports in Dilley

Open a ZIP for site-level provenance and measurements.

ZIP code

78017

Very Hard

442 PPM

Nearest site
13.2 mi
Confidence
Low

View full ZIP evidence →

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. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Dilley

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.