The Power of Information

National Drinking Water Database

Redlands City Mud-Water Div Utilities - San Bernardino, CA

Serves 69,300 people


Strontium-90 is a radioactive pollutant from nuclear fallout and possibly weapons and power production.
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
68 days
Tests ConductedNumber of individual tests done for this contaminant
121 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Strontium-90Strontium-90 is a radioactive pollutant from nuclear fallout and possibly weapons and power production.0.05 pCi/L
0.68 pCi/L
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 Strontium-90

Health Based Limits for Strontium-90

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

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2007-03-200 pCi/L110 pCi/L
2007-02-140 pCi/L110 pCi/L
2007-02-070 pCi/L110 pCi/L
2007-02-060 pCi/L110 pCi/L
2007-01-220 pCi/L110 pCi/L
2006-11-210 pCi/L220 pCi/L
2006-11-090 pCi/L220 pCi/L
2006-11-070 pCi/L110 pCi/L
2006-11-010 pCi/L220 pCi/L
2006-10-310 pCi/L220 pCi/L
2006-10-300 pCi/L220 pCi/L
2006-10-240 pCi/L220 pCi/L
2006-10-180 pCi/L330 pCi/L
2006-10-160 pCi/L110 pCi/L
2006-10-120 pCi/L220 pCi/L
2006-10-110 pCi/L220 pCi/L
2006-10-100 pCi/L220 pCi/L
2006-10-050 pCi/L110 pCi/L
2006-10-040 pCi/L220 pCi/L
2006-09-180 pCi/L220 pCi/L
2006-09-130 pCi/L220 pCi/L
2006-09-120 pCi/L220 pCi/L
2006-08-310.14 pCi/L420 to 0.47 pCi/L
2006-08-290 pCi/L440 pCi/L
2006-08-280 pCi/L220 pCi/L
2006-08-230 pCi/L110 pCi/L
2006-08-220 pCi/L220 pCi/L
2006-08-210 pCi/L220 pCi/L
2006-08-160 pCi/L220 pCi/L
2006-08-150.68 pCi/L430 to 2.73 pCi/L
2006-06-300.3 pCi/L100.3 pCi/L
2006-06-290 pCi/L110 pCi/L
2006-06-280.37 pCi/L100.37 pCi/L
2006-06-270.23 pCi/L100.23 pCi/L
2006-06-210 pCi/L110 pCi/L
2006-06-080 pCi/L330 pCi/L
2006-06-050.22 pCi/L100.22 pCi/L
2006-06-010.36 pCi/L200.24 to 0.48 pCi/L
2006-05-150 pCi/L330 pCi/L
2006-04-200.29 pCi/L210 to 0.58 pCi/L
2006-04-180.54 pCi/L400.44 to 0.83 pCi/L
2006-04-050 pCi/L110 pCi/L
2006-03-290.03 pCi/L320 to 0.1 pCi/L
2006-03-280.05 pCi/L420 to 0.11 pCi/L
2006-03-27<0.01 pCi/L320 to 0.02 pCi/L
2006-03-140 pCi/L110 pCi/L
2005-02-020 pCi/L220 pCi/L
2004-04-120 pCi/L110 pCi/L
2004-03-310 pCi/L110 pCi/L
2004-03-290 pCi/L110 pCi/L
2004-03-250 pCi/L110 pCi/L
2004-03-240 pCi/L220 pCi/L
2004-03-150 pCi/L110 pCi/L
2004-03-010 pCi/L110 pCi/L
2004-02-250 pCi/L110 pCi/L
2004-02-240 pCi/L110 pCi/L
2004-02-190 pCi/L110 pCi/L
2004-02-180 pCi/L220 pCi/L
2004-02-120 pCi/L220 pCi/L
2004-02-110 pCi/L220 pCi/L
2004-02-050 pCi/L110 pCi/L
2004-02-040 pCi/L110 pCi/L
2004-01-280 pCi/L110 pCi/L
2004-01-270 pCi/L220 pCi/L
2004-01-140.11 pCi/L210 to 0.21 pCi/L
2004-01-130 pCi/L110 pCi/L
2004-01-120 pCi/L220 pCi/L
2004-01-080 pCi/L220 pCi/L