Total trihalomethanes (TTHM) above the legal limit in the period starting October 2025.
Serves about 1,500 people (529 connections) with surface water bought from Ola Waterworks.
From EPA's record for AR0000660. PurityMap is independent of Casa Water Dept.
Are you this utility? Correct this listing →
11 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2025 | Total trihalomethanes (TTHM) | 83 µg/L | 0.080 mg/L | Archived |
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 84 µg/L | 0.080 mg/L | Archived |
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 91 µg/L | 0.080 mg/L | Archived |
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 83 µg/L | 0.080 mg/L | Archived |
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 87 µg/L | 0.080 mg/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 82 µg/L | 0.080 mg/L | Archived |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 81 µg/L | 0.080 mg/L | Archived |
| Jul–Sep 2019 | Total trihalomethanes (TTHM) | 81 µg/L | 0.080 mg/L | Archived |
| Oct–Dec 2018 | Total trihalomethanes (TTHM) | 81 µg/L | 0.080 mg/L | Archived |
| Apr–Jun 2018 | Total trihalomethanes (TTHM) | 83 µg/L | 0.080 mg/L | Archived |
| Oct–Dec 2017 | Total trihalomethanes (TTHM) | 82 µg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Casa Water Dept's phone number on EPA record is 601-233-6210. Its mailing address is PO BOX 6, CASA, AR 72025.
According to EPA's record, Casa Water Dept uses surface water bought from Ola Waterworks.
EPA's record shows 11 health-based violations for Casa Water Dept in the 10 years to July 9, 2026. Total trihalomethanes (TTHM) were above the legal limit in the period starting October 2025. EPA also lists 5 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Casa Water Dept's latest lead and copper round, which ended in December 2019, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Casa Water Dept. Its phone number on EPA record is 601-233-6210. Its mailing address on EPA record is PO BOX 6, CASA, AR 72025. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.