The Power of Information

National Drinking Water Database


Pottawatomie County Rwd #3 Utilities - Shawnee, OK


Serves 560 people

Lead (total)

Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
14 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
36 days
Tests ConductedNumber of individual tests done for this contaminant
160 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Lead (total)Lead is a metal that enters water by corrosion of household plumbing systems, discharge of industrial pollution and erosion of natural deposits.2.03 ppb
20.91 ppb
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 ppb
No
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 Lead (total)

Health Based Limits for Lead (total)

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 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.2 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-12-180 ppb440 ppb
2008-12-170 ppb13130 ppb
2008-12-160 ppb330 ppb
2008-06-260 ppb20200 ppb
2007-12-200 ppb880 ppb
2007-12-190 ppb990 ppb
2007-12-180 ppb110 ppb
2007-12-170 ppb220 ppb
2006-12-210.88 ppb650 to 5.3 ppb
2006-12-200 ppb220 ppb
2006-12-191.33 ppb650 to 8 ppb
2006-12-182.32 ppb650 to 13.9 ppb
2006-03-222.86 ppb760 to 20 ppb
2006-03-212.44 ppb760 to 17.1 ppb
2006-03-2020.91 ppb720 to 65.1 ppb
2005-09-250 ppb220 ppb
2005-09-240 ppb110 ppb
2005-09-230 ppb110 ppb
2005-09-220 ppb110 ppb
2005-09-204 ppb210 to 8 ppb
2005-09-180 ppb110 ppb
2005-09-171.88 ppb540 to 9.4 ppb
2005-09-160 ppb220 ppb
2005-09-150 ppb110 ppb
2005-09-130 ppb110 ppb
2005-09-129.57 ppb310 to 21.7 ppb
2004-12-202.67 ppb320 to 8 ppb
2004-12-170 ppb110 ppb
2004-12-140 ppb440 ppb
2004-12-100 ppb550 ppb
2004-12-091.67 ppb320 to 5 ppb
2004-12-080 ppb440 ppb
2004-05-240 ppb110 ppb
2004-05-146 ppb106 ppb
2004-05-1212.88 ppb860 to 87 ppb
2004-05-113.67 ppb960 to 13 ppb