Is Bethlehem, PA Tap Water Safe to Drink?
Yes, Bethlehem tap water is safe to drink. Hardness is low at 62 PPM, and no contaminants exceed health guidelines. Most homes here don't need treatment.
Hardness Scale: Where Bethlehem Falls
0Slightly
60Moderate
120Hard
180Very Hard
250Extreme
400+
How Bethlehem Compares
Bethlehem's water is 55% softer than the national average of 138 PPM - ranking in the bottom 65% for hardness nationwide. Most homes here do not need a softener. Within Pennsylvania, it ranks #21 of 31 cities (36% below the state average of 97 PPM). Among mid-size cities (100k-200k), Bethlehem ranks #136 of 189 for hardness.
What Bethlehem's Water Means for Your Home
Hardness: 62 PPM - Low Concern
Bethlehem's water is moderately hard at 62 PPM. You'll see some spotting on glassware and a film on shower doors over time, but it's not the kind of hardness that demands a full softener. A salt-free conditioner is worth considering if you have a tankless water heater or high-end fixtures.
Contaminants & Safety
Disinfection byproducts are the notable finding here. Bethlehem's water has TTHMs at 34.8 ppb and HAA5 at 24.6 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
Bethlehem's surface water supply requires heavy chlorination to stay safe — but that creates a tradeoff. The treatment process generates disinfection byproducts: TTHMs at 34.8 ppb (43% of the legal limit, but 232x the EWG guideline) and HAA5 at 24.6 ppb (41% of the legal limit, but 246x 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 0.0663 ppb, which is 3.3x 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) | 62 PPM | < 60 PPM | No federal limit | ✓ OK |
| Total Dissolved Solids | 50 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 | 1.8 ppb | 0 ppb (no safe level) | 15 ppb (10 ppb in 2027) | ✓ Low |
| Chlorine / Chloramine | 1.3 mg/L | Taste threshold ~1.0 | 4.0 mg/L | ✓ Normal |
| Nitrate | Not reported | 5 mg/L | 10 mg/L | N/A |
Recommendations for Bethlehem Homes
Quick Fix for Chlorine: Shower Filter
At 1.3 mg/L chlorine, many Bethlehem residents notice dry skin, brittle hair, and that "pool smell" in the shower. A shower filter installs in 5 minutes, no tools needed.
How to Test Your Water in Bethlehem
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 City of Bethlehem Water's annual Consumer Confidence Report for official city-level data.
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About Bethlehem's Water Supply
Water Utility: City of Bethlehem Water
Water Source: Wild Creek, Pocono Mountain reservoirs (Surface Water)
Population Served: 117,259
Hardness: 62 PPM (3.6 grains per gallon)
Bethlehem's drinking water comes from surface sources — Wild Creek, Pocono Mountain reservoirs. 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 117,000 residents.
Water quality can vary by neighborhood and season. For your exact numbers, request City of Bethlehem Water'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 City of Bethlehem Water in Bethlehem, PA, including ZIP codes:
18015, 18016, 18017, 18018, 18020, 18025, 18034, 18036, 18055, 18081, 18935, 18951, 18955, 18970, 18981
If your ZIP code is listed above, this report covers your water supply. Water quality may vary slightly by neighborhood.
Compare Bethlehem to Other Pennsylvania Cities
Frequently Asked Questions About Bethlehem Water
Is Bethlehem tap water safe to drink?
Where does Bethlehem's water come from?
Do I need a water softener in Bethlehem?
What is the hardness of Bethlehem water in grains per gallon?
What are disinfection byproducts in Bethlehem's water?
Is chromium-6 in Bethlehem's water?
Why does Bethlehem water taste like chlorine?
Can I drink Bethlehem tap water straight from the faucet?
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.
What Bethlehem Homeowners Actually Buy
Common purchases for homes with 62 PPM water.
Affiliate disclosure: we may earn a commission. Selection based on Bethlehem's water data.