Is Cabot, AR Tap Water Safe to Drink?
Yes, Cabot tap water is safe to drink. Hardness is low at 28 PPM, and no contaminants exceed health guidelines. Most homes here don't need treatment.
Hardness Scale: Where Cabot Falls
0Slightly
60Moderate
120Hard
180Very Hard
250Extreme
400+
How Cabot Compares
Cabot's water is 80% softer than the national average of 138 PPM - ranking in the bottom 85% for hardness nationwide. Most homes here do not need a softener. Within Arkansas, it ranks #10 of 13 cities (45% below the state average of 51 PPM). Among smaller cities, Cabot ranks #224 of 288 for hardness.
What Cabot's Water Means for Your Home
Hardness: 28 PPM - Low Concern
Cabot's water is slightly hard at 28 PPM. Most households won't notice any issues at this level. Scale buildup is minimal, and a water softener would be overkill. Cabot is softer than 85% of US cities. If you're thinking about water treatment, contaminant filtration is where to focus your money, not softening.
Contaminants & Safety
Disinfection byproducts are the notable finding here. Cabot's water has TTHMs at 35.2 ppb and HAA5 at 9.04 ppb — both within legal limits, but the EWG health guidelines are far stricter. These byproducts form when chlorine reacts with organic matter during treatment. A whole-house activated carbon filter reduces both chlorine and its byproducts. Want the full picture? Request your utility's annual Consumer Confidence Report.
What's in the Treatment Process
Cabot's surface water supply requires heavy chlorination to stay safe — but that creates a tradeoff. The treatment process generates disinfection byproducts: TTHMs at 35.2 ppb (44% of the legal limit, but 235x the EWG guideline) and HAA5 at 9.04 ppb (15% of the legal limit, but 90x the EWG guideline). These are within legal limits, but the EWG sets much tighter thresholds based on cancer-risk research. A whole-house activated carbon filter reduces both chlorine and byproducts.
Chromium-6 was detected at 3.02 ppb, which is 151x the EWG health guideline. There's no separate federal limit for chromium-6, only total chromium. A reverse osmosis system is the most effective removal method. All measurements are within federal legal limits. The EWG guidelines represent a more conservative, health-based standard.
| Contaminant | Detected | Health Guideline | Legal Limit | Status |
|---|---|---|---|---|
| Hardness (as CaCO₃) | 28 PPM | < 60 PPM | No federal limit | ✓ OK |
| Total Dissolved Solids | 41 PPM | < 300 PPM | 500 PPM | ✓ OK |
| PFAS (total) | 0 ppt | — | No total limit | ✓ ND |
| ↳ PFOA | 0 ppt | 0 ppt | 4 ppt (2024) | ✓ OK |
| ↳ PFOS | 0 ppt | 0 ppt | 4 ppt (2024) | ✓ OK |
| Lead | 1 ppb | 0 ppb (no safe level) | 15 ppb (10 ppb in 2027) | ✓ Low |
| Chlorine / Chloramine | 0.6 mg/L | Taste threshold ~1.0 | 4.0 mg/L | ✓ Normal |
| Nitrate | 0.54 mg/L | 5 mg/L | 10 mg/L | ✓ OK |
Good news for Cabot residents. Your water quality is generally good. Most homes in this area do not need a water softener. If you have concerns about lead (especially in buildings constructed before 1986) or chlorine taste, a point-of-use filter is the most practical and cost-effective solution.
How to Test Your Water in Cabot
City-wide data is a solid starting point, but your specific tap might differ based on plumbing age, distance from the treatment plant, or seasonal changes.
Free option: Request Cabot Waterworks's annual Consumer Confidence Report for official city-level data.
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About Cabot's Water Supply
Water Utility: Cabot Waterworks
Water Source: Local wells (Surface Water)
Population Served: 26,770
Hardness: 28 PPM (1.6 grains per gallon)
Cabot's drinking water comes from surface sources — Local wells. Surface water requires more extensive treatment than groundwater, including coagulation, filtration, and disinfection. This heavier chlorination is why disinfection byproducts tend to be higher in surface-supplied systems. On the upside, surface sources often deliver softer water than deep aquifers. The system serves 27,000 residents.
Water quality can vary by neighborhood and season. For your exact numbers, request Cabot Waterworks's Consumer Confidence Report (CCR) or test your own tap.
ZIP Codes Covered by This Report
This water quality data applies to all areas served by Cabot Waterworks in Cabot, AR, including ZIP codes:
72006, 72007, 72010, 72012, 72017, 72020, 72021, 72023, 72024, 72029, 72036, 72040, 72041, 72045, 72052, 72059, 72060, 72064, 72066, 72068, 72074, 72076, 72078, 72081, 72082, 72085, 72086, 72099, 72102, 72108, 72121, 72123, 72134, 72136, 72137, 72139, 72143, 72145, 72149, 72173, 72176, 72178, 72179, 72340, 72392, 72523, 72534, 72550, 72568
If your ZIP code is listed above, this report covers your water supply. Water quality may vary slightly by neighborhood.
Compare Cabot to Other Arkansas Cities
Frequently Asked Questions About Cabot Water
Is Cabot tap water safe to drink?
Where does Cabot's water come from?
Do I need a water softener in Cabot?
What are disinfection byproducts in Cabot's water?
Is chromium-6 in Cabot's water?
Can I drink Cabot tap water straight from the faucet?
How does Cabot compare to the Arkansas average?
What water filter is best for Cabot?
Data sources: Lead and copper data from EPA Safe Drinking Water Act LCR reporting. Contaminant data from utility-reported testing results. PFAS data from EPA UCMR5 (2023–2025). Hardness from USGS and municipal reports. Data reflects system-level testing results and may not match your specific tap due to neighborhood plumbing, season, or recent utility changes. For your utility's latest results, request their Consumer Confidence Report (CCR). Our methodology. Last updated: 2026-02-24.