Cumberland Drinking Water Quality
What's Really in Your Tap Water?
Good news for Cumberland residents — your tap water meets all current EPA drinking water standards. At just 35.7 ppm (2.1 gpg), the water is pleasantly soft. Lead levels test well below the EPA action level. No violations have been recorded in the past 3 years.
Safe to Drink
Meets all EPA standards
2.1 GPG hardness
Lead
Below EPA action level
EPA action level: 15 ppb
Hardness
Soft water
US Average: 100 ppm
Is Cumberland Tap Water Safe to Drink?
Cumberland tap water meets all current EPA drinking water standards.
Lead — Lead (1.9 ppb) is at 13% of the EPA action level of 15 ppb.
The data below shows test results from 1 water utility serving 135K people in the Cumberland area.
Based on publicly available data from EPA Water Quality Portal (Various). Water quality can vary by location, building plumbing, and over time. This assessment reflects compliance with federal EPA standards and is not medical advice.
Do I Need a Water Filter?
Cumberland tap water meets all current EPA standards. No additional filtration is required based on available test data. For extra peace of mind, a basic carbon filter can improve taste.
How Hard is Cumberland Water?
35.7 ppm
2.1 grains per gallon
Soft water requires no treatment and is gentle on skin and appliances.
Estimated from 1 neighboring county. Actual values may vary.
Impact on Your Home
Shower
Great for skin & hair
Kitchen
No water spots
Laundry
Clothes stay soft
Appliances
No scale buildup
Regional Comparison
Values in ppm (mg/L as CaCO₃)
Want to verify your home's exact hardness level? See our best water hardness test kits.
Based on 1 water samples from Cumberland County
Your pipes tell a different story
The data above shows what leaves the treatment plant—not what comes out of your faucet. Old pipes, lead solder, and building plumbing can add contaminants the city never tests for. Know exactly what's in your Cumberland tap water.
Home test kits detect lead, bacteria, pesticides, and 100+ other contaminants. Results in 5-10 business days from certified labs.

Lead & Contaminants
Understanding lead levels and water quality violations in Cumberland
Lead Test Results
90th Percentile Lead Level
1.9 ppb
Cumberland lead levels are well below the EPA action level.
Regular testing is still recommended, as lead can enter water through household plumbing.
Last sampled: 2023-12-31
About Lead in Drinking Water
What is Lead in Water?
According to the EPA, lead is a toxic metal that can dissolve into drinking water from older pipes, solder, and fixtures. It's invisible, tasteless, and odorless, making testing the only way to detect it. The EPA has set an action level of 15 ppb and states there is no safe level of lead exposure.
Potential Health Effects
According to the CDC: developmental delays, learning difficulties, lower IQ, behavioral issues
According to the EPA: high blood pressure, kidney damage, reproductive issues
How to Reduce Exposure
- •Run water for 30 seconds to 2 minutes before drinking, especially in the morning
- •Use cold water for cooking and drinking (hot water dissolves more lead)
- •Install a NSF-certified filter designed to remove lead
- •Test your water, especially if your home was built before 1986
EPA Compliance History
Excellent Record
No violations in past 3 yearsThis utility has maintained full EPA compliance. No action needed, but regular home testing is still recommended.
3-Year Violation Summary
0
Total Violations
0
Health-Related
0
Administrative
Health-Related Violations
Contaminant exceeded EPA maximum contaminant levels. The EPA recommends considering certified filtration.
Administrative Violations
Missed testing deadlines or reporting. Does not indicate water quality issues.
Who Provides Cumberland's Water?
Utility Name
PORTLAND WATER DISTRICT-GREATER
EPA System ID (PWSID)
ME0091300
Primary Water Source
Surface Water
Population Served
135K
Frequently Asked Questions
Common questions about Cumberland tap water quality
Nearby Cities in Maine
Standish
Soft water
Gorham
Soft water
Scarborough
Soft water
Raymond
Soft water
Cape Elizabeth
Soft water
Falmouth
Soft water
This data is for informational purposes only. Water quality can vary by neighborhood and building. For official reports, contact your local water utility or the EPA. Learn about our methodology
Data source: EPA Water Quality Portal (environmental samples, not verified tap water)