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City water profile

Water hardness in Marshall

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

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
1
Active health records
0

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 Marshall

TX1020002 · Surface water · 23,091 people served system-wide

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

No active health-based record in this imported snapshot

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
0.0021 mg/L
Action level
0.015 mg/L

14% of the listed benchmark

Monitoring period: Jan 1, 2020 to Dec 31, 2022

Violation history (27)
Imported violation history for City Of Marshall
RuleStatusPeriod
Lead and Copper RuleUnaddressedOct 1, 2025
LEAD AND COPPER RULE REVISIONSUnaddressedJul 2, 2025
Revised Total Coliform RuleResolvedJul 1, 2025 to Jul 31, 2025
Consumer Confidence RuleUnaddressedJul 1, 2025
Interim Enhanced Surface Water Treatment RuleResolvedJun 1, 2025 to Jun 30, 2025
Interim Enhanced Surface Water Treatment RuleHealth-basedResolvedJun 1, 2025 to Jun 30, 2025
Revised Total Coliform RuleResolvedJan 1, 2025 to Jan 31, 2025
Interim Enhanced Surface Water Treatment RuleResolvedDec 1, 2024 to Dec 31, 2024
Revised Total Coliform RuleResolvedOct 1, 2024 to Oct 31, 2024
Revised Total Coliform RuleResolvedMar 1, 2024 to Mar 31, 2024
Consumer Confidence RuleResolvedJul 1, 2023 to Oct 25, 2023
TTHMResolvedDec 20, 2022 to Jul 20, 2023
Total Haloacetic Acids (HAA5)ResolvedDec 20, 2022 to Jul 20, 2023
Consumer Confidence RuleResolvedJul 1, 2022 to Feb 21, 2023
Public NoticeResolvedMay 12, 2022 to Jan 11, 2024
Public NoticeResolvedMay 12, 2022 to Jan 11, 2024
Public NoticeResolvedMay 1, 2022 to May 17, 2022
Interim Enhanced Surface Water Treatment RuleHealth-basedResolvedMar 1, 2022 to Mar 31, 2022
Public NoticeResolvedSep 6, 2021 to Jan 11, 2024
Public NoticeResolvedJun 1, 2021 to Jan 11, 2024
Public NoticeResolvedMar 31, 2021 to May 24, 2022
Public NoticeResolvedMar 24, 2021 to Jan 11, 2024
Public NoticeResolvedMar 21, 2021 to Jan 11, 2024
Interim Enhanced Surface Water Treatment RuleResolvedFeb 1, 2021 to Feb 28, 2021
Interim Enhanced Surface Water Treatment RuleHealth-basedResolvedFeb 1, 2021 to Feb 28, 2021
Interim Enhanced Surface Water Treatment RuleResolvedFeb 1, 2021 to Feb 28, 2021
Interim Enhanced Surface Water Treatment RuleHealth-basedResolvedFeb 1, 2021 to Feb 28, 2021

City summary

What the indexed records say

Marshall has 2 published ZIP profiles across Harrison County. The regional-evidence median is 40 PPM. The city does not meet the stricter comparison standard.

The 40–40 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

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

1 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
19.2 miles
Profiles with evidence
1/2

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Sep 28, 2016 to Aug 22, 2018.

ZIP directory

Water reports in Marshall

Open a ZIP for site-level provenance and measurements.

ZIP code

75670

Soft

40 PPM

Nearest site
19.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

75672

No estimate

—

Nearest site
— mi
Confidence
—

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 Marshall

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.