Is Biddeford, ME Tap Water Safe to Drink?
Yes, Biddeford tap water is safe to drink. Hardness is low at 15 PPM, and no contaminants exceed health guidelines. Most homes here don't need treatment.
Hardness Scale: Where Biddeford Falls
0Slightly
60Moderate
120Hard
180Very Hard
250Extreme
400+
How Biddeford Compares
Biddeford's water is 89% softer than the national average of 138 PPM - ranking in the bottom 97% for hardness nationwide. Most homes here do not need a softener. Within Maine, it ranks #6 of 8 cities (32% below the state average of 22 PPM). Among smaller cities, Biddeford ranks #276 of 288 for hardness.
What Biddeford's Water Means for Your Home
Hardness: 15 PPM - Low Concern
Biddeford's water is soft at just 15 PPM. That's good news for your plumbing, appliances, and skin. Scale buildup is a non-issue here, and a water softener would be a waste of money. Biddeford is softer than 97% of US cities. If you're thinking about water treatment in Biddeford, contaminant filtration is the place to invest.
Contaminants & Safety
Disinfection byproducts are the notable finding here. Biddeford's water has TTHMs at 23.6 ppb and HAA5 at 24 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
Biddeford's surface water supply requires heavy chlorination to stay safe — but that creates a tradeoff. The treatment process generates disinfection byproducts: TTHMs at 23.6 ppb (30% of the legal limit, but 157x the EWG guideline) and HAA5 at 24 ppb (40% of the legal limit, but 240x 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. 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) | 15 PPM | < 60 PPM | No federal limit | ✓ OK |
| Total Dissolved Solids | 27 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 | 2.6 ppb | 0 ppb (no safe level) | 15 ppb (10 ppb in 2027) | ✓ Low |
| Chlorine / Chloramine | 1.7 mg/L | Taste threshold ~1.0 | 4.0 mg/L | ✓ Normal |
| Nitrate | Not reported | 5 mg/L | 10 mg/L | N/A |
Recommendations for Biddeford Homes
Quick Fix for Chlorine: Shower Filter
At 1.7 mg/L chlorine, many Biddeford 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 Biddeford
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 Maine Water Company's annual Consumer Confidence Report for official city-level data.
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About Biddeford's Water Supply
Water Utility: Maine Water Company
Water Source: Saco River (Surface Water)
Population Served: 42,508
Hardness: 15 PPM (0.9 grains per gallon)
Biddeford's drinking water comes from surface sources — Saco River. 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 43,000 residents.
Water quality can vary by neighborhood and season. For your exact numbers, request Maine Water Company'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 Maine Water Company in Biddeford, ME, including ZIP codes:
03814, 03817, 03830, 03832, 03836, 03849, 03864, 03875, 03882, 03886, 03890, 04001, 04002, 04004, 04005, 04006, 04007, 04014, 04020, 04028, 04030, 04041, 04042, 04043, 04046, 04047, 04048, 04049, 04056, 04061, 04063, 04064, 04068, 04072, 04073, 04076, 04083, 04087, 04090, 04091, 04093, 04094, 04095
If your ZIP code is listed above, this report covers your water supply. Water quality may vary slightly by neighborhood.
Compare Biddeford to Other Maine Cities
Frequently Asked Questions About Biddeford Water
Is Biddeford tap water safe to drink?
Where does Biddeford's water come from?
Do I need a water softener in Biddeford?
What are disinfection byproducts in Biddeford's water?
Why does Biddeford water taste like chlorine?
Can I drink Biddeford tap water straight from the faucet?
How does Biddeford compare to the Maine average?
What water filter is best for Biddeford?
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 Biddeford Homeowners Actually Buy
Common purchases for homes with 15 PPM water.
Affiliate disclosure: we may earn a commission. Selection based on Biddeford's water data.