The Power of Information

National Drinking Water Database


Sacramento Suburban Water District Utilities - Sacramento, CA


Serves 170,000 people

Alpha particle activity

Alpha particles are a form of radiation released from mining waste pollutants and natural sources.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
30 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
57 days
Tests ConductedNumber of individual tests done for this contaminant
424 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Alpha particle activityAlpha particles are a form of radiation released from mining waste pollutants and natural sources.0.46 pCi/L
2.99 pCi/L
Yes
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 pCi/L
No
15 pCi/L
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 Alpha particle activity

Health Based Limits for Alpha particle activity

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 pCi/L
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.15 pCi/L

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2007-11-060 pCi/L220 pCi/L
2007-07-252.33 pCi/L210 to 4.66 pCi/L
2007-06-180 pCi/L110 pCi/L
2007-06-060 pCi/L110 pCi/L
2007-05-170 pCi/L220 pCi/L
2007-05-161.05 pCi/L13100 to 5.85 pCi/L
2007-05-090 pCi/L12120 pCi/L
2007-03-290 pCi/L110 pCi/L
2007-03-210 pCi/L110 pCi/L
2007-03-120 pCi/L550 pCi/L
2007-03-080 pCi/L220 pCi/L
2007-03-050.76 pCi/L760 to 5.31 pCi/L
2007-02-220 pCi/L220 pCi/L
2007-02-140.95 pCi/L430 to 3.79 pCi/L
2007-02-120 pCi/L550 pCi/L
2006-12-070 pCi/L220 pCi/L
2006-11-271.23 pCi/L320 to 3.69 pCi/L
2006-11-200.25 pCi/L22210 to 5.44 pCi/L
2006-09-080 pCi/L110 pCi/L
2006-08-310 pCi/L110 pCi/L
2006-08-220.19 pCi/L11100 to 2.14 pCi/L
2006-05-152.65 pCi/L102.65 pCi/L
2005-12-290 pCi/L880 pCi/L
2005-12-270.25 pCi/L21200 to 5.3 pCi/L
2005-10-270 pCi/L11110 pCi/L
2005-10-260 pCi/L14140 pCi/L
2005-10-250 pCi/L20200 pCi/L
2005-10-130 pCi/L13130 pCi/L
2005-09-220.06 pCi/L100.06 pCi/L
2005-08-110.58 pCi/L100.58 pCi/L
2005-07-270 pCi/L10100 pCi/L
2005-07-260.25 pCi/L14130 to 3.5 pCi/L
2005-07-120 pCi/L15150 pCi/L
2005-07-110 pCi/L20200 pCi/L
2005-05-192.99 pCi/L102.99 pCi/L
2005-04-200 pCi/L330 pCi/L
2005-04-120 pCi/L660 pCi/L
2005-04-070 pCi/L19190 pCi/L
2005-04-050 pCi/L16160 pCi/L
2005-04-040 pCi/L14140 pCi/L
2005-01-130.95 pCi/L2010 to 3.69 pCi/L
2005-01-111.35 pCi/L1300.17 to 2.25 pCi/L
2005-01-060.79 pCi/L1500.09 to 1.83 pCi/L
2005-01-040.77 pCi/L900.13 to 2.85 pCi/L
2004-08-310.74 pCi/L100.74 pCi/L
2004-07-060.2 pCi/L100.2 pCi/L
2004-06-241.64 pCi/L101.64 pCi/L
2004-06-140.91 pCi/L510 to 2.69 pCi/L
2004-06-070.42 pCi/L500.07 to 0.94 pCi/L
2004-06-010.51 pCi/L400.06 to 1.24 pCi/L
2004-05-240.57 pCi/L500.25 to 1.39 pCi/L
2004-05-170.62 pCi/L400.05 to 2.17 pCi/L
2004-05-100.29 pCi/L410 to 0.64 pCi/L
2004-02-180.72 pCi/L510 to 2.47 pCi/L
2004-02-110.66 pCi/L910 to 1.32 pCi/L
2004-02-100.9 pCi/L800.18 to 3.59 pCi/L
2004-02-040.48 pCi/L720 to 1.19 pCi/L