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City water profile

Water hardness in Danville

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

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.

Danville Waterworks

AR0000603 · Surface water · 2,810 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 (2)

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
0.013 mg/L
Action level
0.015 mg/L

87% of the listed benchmark

Monitoring period: Jan 1, 2001 to Dec 31, 2003

TTHM

EPA SDWIS reported health-based violation

Reported violation
Reported level
91 UG/L
Maximum contaminant level
0.08 UG/L

113750% of the listed benchmark

Monitoring period: Jul 1, 2025 to Sep 30, 2025

Violation history (25)
Imported violation history for Danville Waterworks
RuleStatusPeriod
Surface Water Treatment RuleHealth-basedArchivedDec 1, 2025 to Dec 31, 2025
TTHMHealth-basedArchivedJul 1, 2025 to Sep 30, 2025
TTHMHealth-basedArchivedApr 1, 2025 to Jun 30, 2025
Interim Enhanced Surface Water Treatment RuleHealth-basedArchivedFeb 1, 2025 to Feb 28, 2025
Surface Water Treatment RuleHealth-basedArchivedJan 1, 2025 to Jan 31, 2025
TTHMHealth-basedArchivedJan 1, 2025 to Mar 31, 2025
Surface Water Treatment RuleHealth-basedArchivedFeb 1, 2024 to Feb 29, 2024
Interim Enhanced Surface Water Treatment RuleHealth-basedArchivedJan 1, 2024 to Jan 31, 2024
Surface Water Treatment RuleHealth-basedArchivedJan 1, 2024 to Jan 31, 2024
Surface Water Treatment RuleHealth-basedArchivedJan 1, 2023 to Jan 31, 2023
Surface Water Treatment RuleHealth-basedArchivedDec 1, 2022 to Dec 31, 2022
Public NoticeAddressedNov 1, 2022
Long Term 2 Enhanced Surface Water Treatment RuleHealth-basedArchivedNov 1, 2022 to Nov 30, 2022
Surface Water Treatment RuleHealth-basedArchivedNov 1, 2022 to Nov 30, 2022
Surface Water Treatment RuleHealth-basedArchivedOct 1, 2022 to Oct 31, 2022
Surface Water Treatment RuleHealth-basedArchivedAug 1, 2022 to Aug 31, 2022
Surface Water Treatment RuleHealth-basedArchivedJan 1, 2022 to Jan 31, 2022
Surface Water Treatment RuleHealth-basedArchivedDec 1, 2021 to Dec 31, 2021
Surface Water Treatment RuleHealth-basedArchivedNov 1, 2021 to Nov 30, 2021
Public NoticeResolvedJun 1, 2021 to Sep 24, 2021
TTHMHealth-basedArchivedApr 1, 2021 to Jun 30, 2021
Surface Water Treatment RuleHealth-basedArchivedFeb 1, 2021 to Feb 28, 2021
TTHMHealth-basedArchivedJan 1, 2021 to Mar 31, 2021
Surface Water Treatment RuleHealth-basedArchivedJan 1, 2021 to Jan 31, 2021
Revised Total Coliform RuleAddressedAug 1, 2020

City summary

What the indexed records say

Danville has 1 published ZIP profile across Yell County. The regional-evidence median is 72 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 hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

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
24.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: May 18, 2017 to May 18, 2017.

ZIP directory

Water reports in Danville

Open a ZIP for site-level provenance and measurements.

ZIP code

72833

Moderately Hard

72.3 PPM

Nearest site
24.6 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 Danville

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.