The Power of Information

National Drinking Water Database


Saint Paul Regional Water Services Utilities - Saint Paul, MN


Serves 414,735 people

Tin (total)

Tin is a metal that enters water from corrosion of household plumbing that contains bronze, pewter or solder components, erosion of natural deposits, and due to widespread use of tin-containing antimicrobials.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
17 days
Tests ConductedNumber of individual tests done for this contaminant
175 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Tin (total)Tin is a metal that enters water from corrosion of household plumbing that contains bronze, pewter or solder components, erosion of natural deposits, and due to widespread use of tin-containing antimicrobials.47.92 ppb
75.3 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Tin (total)

Health Based Limits for Tin (total)

There are no health based standards that EWG is using for this chemical

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-12-0149.2 ppb10043 to 61 ppb
2008-09-0259.8 ppb10041 to 110 ppb
2008-06-0266 ppb10047 to 88 ppb
2008-03-0565.1 ppb10054 to 78 ppb
2007-12-0675.3 ppb10065 to 87 ppb
2007-09-0440.5 ppb10031 to 56 ppb
2007-06-0439.4 ppb10027 to 55 ppb
2007-03-1910.18 ppb1030 to 48 ppb
2005-12-1343.6 ppb10029 to 59 ppb
2005-09-0637.7 ppb10030 to 49 ppb
2005-06-0640.4 ppb10021 to 89 ppb
2005-03-0263 ppb10052 to 72 ppb
2004-12-0151 ppb10043 to 61 ppb
2004-09-0161.18 ppb11014 to 100 ppb
2004-07-1335.17 ppb12027 to 55 ppb
2004-06-1442.91 ppb11029 to 85 ppb
2004-06-0134.18 ppb11024 to 49 ppb