Government sampling for Ramsey County’s Saint Paul Regional Water Services, serving 392,529 people via surface water, shows one EPA health-based violation recorded among eleven total. Lead levels in plumbing distribution at the 90th percentile were 0.008 mg/L as measured near the end of 2025. Treatment processes used include multiple technical steps noted by EPA codes.
Long-Term Effects of Untreated Water
Gradual buildup of substances may affect taste and staining over years
Possible slow deterioration in plumbing components without treatment
Accumulation of deposits can reduce water flow efficiency
First Fixtures, Appliances, or Processes to Experience Problems
Faucets and showerheads may develop visible film or discoloration first
Water heaters may accumulate sediment reducing heating efficiency
Ice makers and coffee machines may suffer from mineral deposits impairing function
Differences Between Public Water System Records and Private Well Testing
Public system data reflects averages from many sources, not individual home plumbing
Sampling captures overall system quality, not unique conditions inside a single household
Private well tests reveal specific concentrations at each point of use
Number of Samples and Wells: What the Figures Represent
Data comes from a large network with almost 95,000 service connections
Sampling includes repeated measurements over multiple years and locations
Smaller sample sizes generally mean higher uncertainty about true average conditions
Considerations for Large Households, Second Homes, or Seasonal Properties
Larger water use may require systems with increased capacity and flow rate
Second or seasonal properties might experience variable water quality between visits
Storage and treatment demands change according to household size and occupancy patterns
Understanding Terminology in Your Water Quality Record
"Detected" means the presence of a substance was measured, not that it is a violation
"Median" shows the middle concentration value among samples, not a fixed level for all water
"Range" indicates the lowest and highest concentrations found, reflecting natural variation
Choosing safe drinking water technology involves understanding the scope and limits of public water data, the impact of long-term exposure, and your household’s specific needs. The Fleck Safe Drinking Water Filter ships ready to configure and offers a documented approach to address these considerations.
This checklist guides you through the key aspects grounded in Ramsey County’s water system records to help weigh your options carefully and confidently.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for Saint Paul Regional Water Services (MN1620026), surface water supply, serving 392529 people: 1 health-based violations of 11 total; lead 90th percentile 0.008 mg/L
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