Riverhead (t) Drinking Water Quality
What's Really in Your Tap Water?
Riverhead (t) tap water has some quality concerns you should be aware of. At just 41.4 ppm (2.4 gpg), the water is pleasantly soft. Lead levels test well below the EPA action level. There have been 6 violations recorded over the past 3 years.
Some Concerns
Monitor recommended
2.4 GPG hardness
Lead
Below EPA action level
EPA action level: 15 ppb
Hardness
Soft water
US Average: 100 ppm
Is Riverhead (t) Tap Water Safe to Drink?
Riverhead (t) tap water has some quality concerns but remains within acceptable limits.
- •3 health-based violations in the past 3 years across 4 water systems.
- •Consider testing your water at home and using a certified water filter for added safety.
The data below shows test results from 4 water utilities serving 1.1M people in the Riverhead (t) area. Water quality testing is conducted regularly and reported to the EPA.
How Hard is Riverhead (t) Water?
41.4 ppm
2.4 grains per gallon
Soft water requires no treatment and is gentle on skin and appliances.
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)
Based on 99 water samples from Suffolk 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 Riverhead (t) 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 Riverhead (t)
Lead Test Results
90th Percentile Lead Level
1.3 ppb
Riverhead (t) lead levels are well within safe limits.
Regular testing is still recommended, as lead can enter water through household plumbing.
Last sampled: 2025-12-31
About Lead in Drinking Water
What is Lead in Water?
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, though they emphasize there is no safe level of lead exposure.
Potential Health Effects
Developmental delays, learning difficulties, lower IQ, behavioral issues
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
Action Recommended
Active health-based violations detectedConsider using a certified water filter until violations are resolved. Contact your utility for updates on corrective actions.
3-Year Violation Summary
6
Total Violations
3
Health-Related
3
Administrative
Health-Related Violations
Contaminant exceeded EPA safety limits. May require filter or alternative water source.
Administrative Violations
Missed testing deadlines or reporting. Does not indicate water quality issues.
Who Provides Riverhead (t)'s Water?
Utility Name
SUFFOLK COUNTY WATER AUTHORITY
EPA System ID (PWSID)
NY5110526
Primary Water Source
Groundwater
Population Served
1.1M
Frequently Asked Questions
Common questions about Riverhead (t) tap water quality
Nearby Cities in New York
New York (c)
Moderate water
Huntington (t)
Soft water
Smithtown (t)
Soft water
Southampton (t)
Soft water
Babylon (t)
Soft water
Islip (t)
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