Mammoth Spring, Arkansas Water Quality Report
Water quality data for 2 water systems serving 1,829 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (138)
75
Jul 1, 2025
5A
Jul 1, 2025
4B
Jul 1, 2025
12
Jul 1, 2025
4B
Jun 1, 2025
5A
Jun 1, 2025
75
Jun 1, 2025
12
Jun 1, 2025
4B
May 1, 2025
5A
May 1, 2025
12
May 1, 2025
75
May 1, 2025
12
Apr 1, 2025
5A
Apr 1, 2025
4B
Apr 1, 2025
75
Apr 1, 2025
75
Mar 1, 2025
4B
Mar 1, 2025
12
Mar 1, 2025
5A
Mar 1, 2025
12
Feb 1, 2025
75
Feb 1, 2025
4B
Feb 1, 2025
5A
Feb 1, 2025
5A
Jan 1, 2025
12
Jan 1, 2025
4B
Jan 1, 2025
75
Jan 1, 2025
75
Dec 1, 2024
5A
Dec 1, 2024
4B
Dec 1, 2024
12
Dec 1, 2024
4B
Nov 1, 2024
12
Nov 1, 2024
75
Nov 1, 2024
5A
Nov 1, 2024
4B
Oct 1, 2024
12
Oct 1, 2024
75
Sep 1, 2024
12
Sep 1, 2024
4B
Sep 1, 2024
12
Aug 1, 2024
4B
Aug 1, 2024
75
Aug 1, 2024
5A
Aug 1, 2024
4B
Jul 1, 2024
75
Jul 1, 2024
12
Jul 1, 2024
75
Jun 1, 2024
12
Jun 1, 2024
4B
Jun 1, 2024
75
May 1, 2024
12
May 1, 2024
4B
May 1, 2024
75
May 1, 2024
4B
May 1, 2024
12
May 1, 2024
4B
Apr 1, 2024
75
Apr 1, 2024
4B
Apr 1, 2024
75
Apr 1, 2024
12
Apr 1, 2024
12
Apr 1, 2024
75
Mar 1, 2024
12
Mar 1, 2024
12
Mar 1, 2024
4B
Mar 1, 2024
4B
Mar 1, 2024
75
Mar 1, 2024
12
Feb 1, 2024
5A
Feb 1, 2024
4B
Feb 1, 2024
5A
Feb 1, 2024
4B
Feb 1, 2024
12
Feb 1, 2024
4B
Jan 1, 2024
4B
Jan 1, 2024
12
Jan 1, 2024
12
Jan 1, 2024
75
Jan 1, 2024
75
Jan 1, 2024
12
Dec 1, 2023
12
Dec 1, 2023
4B
Dec 1, 2023
4B
Dec 1, 2023
4B
Dec 1, 2023
4B
Dec 1, 2023
12
Dec 1, 2023
4B
Nov 1, 2023
4B
Nov 1, 2023
12
Nov 1, 2023
12
Nov 1, 2023
12
Nov 1, 2023
4B
Nov 1, 2023
4B
Nov 1, 2023
12
Oct 1, 2023
12
Oct 1, 2023
12
Oct 1, 2023
4B
Oct 1, 2023
4B
Oct 1, 2023
4B
Oct 1, 2023
4B
Oct 1, 2023
4B
Sep 1, 2023
4B
Sep 1, 2023
4B
Sep 1, 2023
4B
Sep 1, 2023
4B
Jul 1, 2023
4B
Jul 1, 2023
4B
Jul 1, 2023
4B
Jul 1, 2023
4B
Jul 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
May 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Apr 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Mar 1, 2023
4B
Jun 1, 2022
4B
Jun 1, 2022
4B
Jun 1, 2022
4B
Jun 1, 2022
4B
Jun 1, 2022
4B
Jun 1, 2022
Resolved Violations (362)
31
Jul 1, 2025 — Jul 31, 2025
31
Jun 1, 2025 — Jun 30, 2025
3A
Jun 1, 2025 — Jun 30, 2025
31
May 1, 2025 — May 31, 2025
31
Apr 1, 2025 — Apr 30, 2025
+ 357 more resolved violations
Frequently Asked Questions
Is Mammoth Spring tap water safe to drink?
Mammoth Spring's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Mammoth Spring tap water?
0 contaminants have been detected in Mammoth Spring's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mammoth Spring?
Install a water filter rated for the specific contaminants found in Mammoth Spring's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mammoth Spring have any water quality violations?
Yes, Mammoth Spring currently has 159 active violations. See the violations section above for details.