The Power of Information

National Drinking Water Database

Bayleaf Master Utilities - Raleigh, NC

Serves 14,742 people

Gross beta particle activity (pCi/L)

Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
6 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)
6 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
48 days
Tests ConductedNumber of individual tests done for this contaminant
266 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Gross beta particle activity (pCi/L)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.5.09 pCi/L
33.5 pCi/L
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 Gross beta particle activity (pCi/L)

Health Based Limits for Gross beta particle activity (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
Samples taken that dayNumber of Non-DetectsRange of Results
2009-01-2912.6 pCi/L1012.6 pCi/L
2008-12-094.1 pCi/L104.1 pCi/L
2008-10-216.6 pCi/L106.6 pCi/L
2008-10-140 pCi/L110 pCi/L
2008-09-040 pCi/L110 pCi/L
2008-08-1222.1 pCi/L1022.1 pCi/L
2008-07-213.3 pCi/L210 to 6.6 pCi/L
2008-05-0817.4 pCi/L1017.4 pCi/L
2008-02-2116.1 pCi/L1016.1 pCi/L
2007-07-3110.9 pCi/L1010.9 pCi/L
2007-05-1118.4 pCi/L1018.4 pCi/L
2007-02-0733.5 pCi/L1033.5 pCi/L
2006-07-206.24 pCi/L106.24 pCi/L
2006-04-0410.78 pCi/L1010.78 pCi/L
2005-10-121.1 pCi/L430 to 4.38 pCi/L
2005-10-115.55 pCi/L530 to 22.02 pCi/L
2005-10-100.56 pCi/L16140 to 4.66 pCi/L
2005-10-071.48 pCi/L18130 to 6.53 pCi/L
2005-10-061.29 pCi/L540 to 6.47 pCi/L
2005-10-052.19 pCi/L960 to 9.62 pCi/L
2005-09-266.14 pCi/L106.14 pCi/L
2005-09-221.34 pCi/L320 to 4.01 pCi/L
2005-09-192.3 pCi/L1170 to 9.62 pCi/L
2005-08-240.8 pCi/L760 to 5.58 pCi/L
2005-08-233.15 pCi/L760 to 22.02 pCi/L
2005-08-221.04 pCi/L1080 to 5.71 pCi/L
2005-08-121.82 pCi/L640 to 6.53 pCi/L
2005-08-030 pCi/L770 pCi/L
2005-08-021.92 pCi/L530 to 5.24 pCi/L
2005-06-0622.02 pCi/L1022.02 pCi/L
2005-05-204.83 pCi/L310 to 9.62 pCi/L
2005-05-191.31 pCi/L16120 to 5.71 pCi/L
2005-05-180 pCi/L440 pCi/L
2005-05-172.33 pCi/L210 to 4.66 pCi/L
2005-05-160.48 pCi/L980 to 4.34 pCi/L
2005-05-150 pCi/L110 pCi/L
2005-05-122.09 pCi/L850 to 6.53 pCi/L
2005-05-110.84 pCi/L13110 to 6.47 pCi/L
2005-03-300 pCi/L110 pCi/L
2005-03-101.35 pCi/L860 to 5.58 pCi/L
2005-03-090 pCi/L10100 pCi/L
2005-03-084.5 pCi/L204.34 to 4.66 pCi/L
2005-03-042.32 pCi/L18110 to 9.62 pCi/L
2005-03-033.76 pCi/L520 to 6.53 pCi/L
2005-03-020.47 pCi/L23210 to 6.47 pCi/L
2005-03-010 pCi/L220 pCi/L
2005-02-280.57 pCi/L1090 to 5.71 pCi/L
2004-01-144.73 pCi/L104.73 pCi/L