City water profile

Water hardness in Cotulla

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

Utility-reported hardness

Not yet available

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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 Cotulla

TX1420001 · Groundwater · 5,640 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: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (26)

Imported violation history for City Of Cotulla
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Feb 13, 2026
Public Notice	Resolved	May 1, 2025 to Jun 9, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Unaddressed	Oct 17, 2024
LEAD AND COPPER RULE REVISIONS	Unaddressed	Oct 17, 2024
E. COLI	Resolved	Dec 21, 2023 to Mar 21, 2024
Public Notice	Resolved	Oct 2, 2023 to Nov 14, 2023
E. COLI	Resolved	Jul 14, 2022 to Oct 21, 2022
Pentachlorophenol	Archived	Jan 1, 2022 to Dec 31, 2024
Atrazine	Archived	Jan 1, 2022 to Dec 31, 2024
Hexachlorocyclopentadiene	Archived	Jan 1, 2022 to Dec 31, 2024
Di(2-ethylhexyl) phthalate	Archived	Jan 1, 2022 to Dec 31, 2024
Endrin	Archived	Jan 1, 2022 to Dec 31, 2024
LASSO	Archived	Jan 1, 2022 to Dec 31, 2024
Heptachlor epoxide	Archived	Jan 1, 2022 to Dec 31, 2024
Methoxychlor	Archived	Jan 1, 2022 to Dec 31, 2024
BHC-GAMMA	Archived	Jan 1, 2022 to Dec 31, 2024
Heptachlor	Archived	Jan 1, 2022 to Dec 31, 2024
Benzo(a)pyrene	Archived	Jan 1, 2022 to Dec 31, 2024
Di(2-ethylhexyl) adipate	Archived	Jan 1, 2022 to Dec 31, 2024
Simazine	Archived	Jan 1, 2022 to Dec 31, 2024
HEXACHLOROBENZENE	Archived	Jan 1, 2022 to Dec 31, 2024
Toxaphene	Archived	Jan 1, 2022 to Dec 31, 2024
Chlordane	Archived	Jan 1, 2022 to Dec 31, 2024
E. COLI	Resolved	Jul 29, 2021 to Sep 21, 2022
E. COLI	Resolved	Jun 17, 2021 to Sep 21, 2022
Public Notice	Unaddressed	Apr 11, 2012

City summary

What the indexed records say

Cotulla has 1 published ZIP profile across La Salle 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: 4.6 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jan 14, 2016 to Feb 16, 2016.

ZIP directory

Water reports in Cotulla

Open a ZIP for site-level provenance and measurements.

ZIP code

78014

Very Hard

442 PPM

Nearest site: 4.6 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Texas communities

Dilley

Frio County

442 PPM median

Fort Stockton

Pecos County

459 PPM median

Plains

Yoakum County

473 PPM median

Seminole

Gaines County

411 PPM median

Andrews

Andrews County

411 PPM median

Alvord

Wise County

475 PPM median

Search all 529 Texas cities →

Questions people ask

About water in Cotulla

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.