Is Rochester tap water safe to drink?
Yes but with caveats
Rochester's water meets EPA minimum standards but has some concerns. Filtration is recommended for sensitive individuals.
3 Issues Detected in Rochester
Very Hard Water (28 GPG)
Hard water causes scale in pipes and shortens appliance lifespan.
Hardness data for Rochester559,015,590,255,904 · Groundwater
Rochester Water Hardness and Quality Report
Rochester has hard water conditions that can affect plumbing, appliances, and daily water use. This report breaks down hardness levels, other contaminants, and the most effective treatment options.
Water Quality Data
Contaminant Levels
Health Insights
- 1With a hardness of 28 GPG, Rochester residents may notice white scale on faucets. Hard water increases maintenance costs.
- 2Chlorine levels may affect the taste of Rochester's tap water. A carbon filter improves flavor.
Score
Rochester tap water is sourced from Groundwater and treated by City of Rochester Water. Water hardness is very hard at 28.0 GPG which may cause scale buildup. TDS is 950 ppm which is above the EPA secondary guideline of 500 ppm. Overall purity score: 73/100 (Moderate). Updated for 2026.
MATCHED TO ROCHESTER'S WATER DATA
Best Water Filters for Rochester, MN (2026)
Matched to Very Hard Water (28 GPG), Moderate Chlorine in Rochester.
AFWFilters 5600sxt 48000 Grain Softener
Salt-Based Water Softener
$650-750
Why this fits Rochester
- Handles Rochester's hard water (Very Hard Water (28 GPG))
- Premium quality at $650-750
Clearly Filtered Water Pitcher
Pitcher Filter
$80-95
Why this fits Rochester
- Eliminates chlorine taste and odor from Rochester's water
- NSF/ANSI 42 + NSF/ANSI 53 + NSF/ANSI 401 certified
- Budget-friendly at $80-95
Waterdrop 10UA Under-Sink Filter
Under-Sink Carbon Filter
$40-60
Why this fits Rochester
- Eliminates chlorine taste and odor from Rochester's water
- NSF/ANSI 42 certified
- Budget-friendly at $40-60
Waterdrop G3P800 Tankless RO
Tankless Reverse Osmosis
$380-450
Why this fits Rochester
- Eliminates chlorine taste and odor from Rochester's water
- NSF/ANSI 58 + NSF 372 certified
- Premium quality at $380-450
As an Amazon Associate, PurityMap may earn from qualifying purchases. Based on latest Rochester water data.
Know exactly what's in YOUR tap
City data shows averages. Your home may differ.
Test Your Water — $25-30About Rochester's Water
Hard Water in Rochester: Impact on Plumbing and Appliances
At 28 grains per gallon, Rochester's water qualifies as very hard. Hard water carries dissolved calcium and magnesium that deposit as limescale inside pipes, water heaters, dishwashers, and washing machines over time. Scale accumulation reduces appliance efficiency and shortens service life. A salt-based water softener is the most effective solution for whole-home protection. For drinking water only, a reverse osmosis system also reduces mineral content significantly.
Explore Rochester Water Data
Rochester Water FAQ
Is Rochester MN tap water safe to drink in 2026?
Does Rochester MN use chlorine or chloramine for disinfection?
How hard is Rochester MN water and what is the TDS level?
Has PFAS been found in Rochester MN drinking water?
What is the best water filter for Rochester?
Nearby Reports
Compare across all 50 US states
Data Sources
- EPA SDWIS
- EWG Tap Water Database
- City of Rochester Water CCR
- USGS monitoring data
PurityMap compiles public data. Updated March 2026.