The Power of Information

National Drinking Water Database


City of Modesto Utilities - Modesto, CA


Serves 190,106 people

Nitrate & nitrite

Nitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.
 
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
824 days
Tests ConductedNumber of individual tests done for this contaminant
7,089 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Nitrate & nitriteNitrate and nitrite enter water from fertilizer runoff, leaching from septic tanks, and erosion of natural deposits.0.06 ppm
6.02 ppm
No
10 ppm
No
10 ppm
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 Nitrate & nitrite

Health Based Limits for Nitrate & nitrite

StandardDescriptionLevel
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.10 ppm
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.10 ppm
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.10 ppm

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-10-294.87 ppm800.73 to 8.1 ppm
2008-10-223.94 ppm1100.66 to 8 ppm
2008-10-153.82 ppm1100.96 to 8.7 ppm
2008-10-085.1 ppm1100.67 to 12 ppm
2008-10-073.8 ppm103.8 ppm
2008-10-015.48 ppm1301.2 to 7.4 ppm
2008-09-244.27 ppm1100.7 to 8 ppm
2008-09-175.33 ppm1210 to 8.1 ppm
2008-09-106.02 ppm1001.2 to 15 ppm
2008-09-034.22 ppm1660 to 10 ppm
2008-06-25<0.01 ppm10< .01 to 0.0021 ppm
2008-06-24<0.01 ppm110< .01 to 0.00811 ppm
2008-06-23<0.01 ppm30< .01 to 0.00899 ppm
2008-06-18<0.01 ppm30<0.01 to 0.01 ppm
2008-06-17<0.01 ppm101< .01 to 0.00767 ppm
2008-06-16<0.01 ppm20< .01 to 0.00843 ppm
2008-06-12<0.01 ppm60< .01 to 0.00778 ppm
2008-06-11<0.01 ppm10< .01 to 0.00725 ppm
2008-06-10<0.01 ppm130<0.01 to 0.02 ppm
2008-06-05<0.01 ppm10< .01 to 0.00837 ppm
2008-06-04<0.01 ppm40< .01 to 0.00715 ppm
2008-06-03<0.01 ppm100<0.01 to 0.01 ppm
2008-05-28<0.01 ppm20< .01 to 0.00775 ppm
2008-05-27<0.01 ppm70< .01 to 0.00702 ppm
2008-05-23<0.01 ppm20< .01 to 0.0012 ppm
2008-05-22<0.01 ppm20< .01 to 0.00111 ppm
2008-05-21<0.01 ppm40<0.01 to 0.01 ppm
2008-05-20<0.01 ppm100< .01 to 0.00692 ppm
2008-05-19<0.01 ppm20< .01 to 0.0011 ppm
2008-05-18<0.01 ppm20< .01 to 0.00124 ppm
2008-05-17<0.01 ppm20< .01 to 0.00119 ppm
2008-05-16<0.01 ppm20< .01 to 0.0012 ppm
2008-05-15<0.01 ppm20< .01 to 0.00121 ppm
2008-05-14<0.01 ppm30< .01 to 0.00754 ppm
2008-05-13<0.01 ppm140<0.01 to 0.01 ppm
2008-05-12<0.01 ppm20< .01 to 0.00126 ppm
2008-05-11<0.01 ppm20< .01 to 0.00113 ppm
2008-05-10<0.01 ppm20< .01 to 0.0011 ppm
2008-05-09<0.01 ppm20< .01 to 0.00126 ppm
2008-05-08<0.01 ppm20< .01 to 0.00118 ppm
2008-05-07<0.01 ppm50< .01 to 0.00669 ppm
2008-05-06<0.01 ppm120<0.01 to 0.01 ppm
2008-05-05<0.01 ppm30< .01 to 0.00123 ppm
2008-05-04<0.01 ppm20< .01 to 0.00127 ppm
2008-05-03<0.01 ppm20< .01 to 0.00131 ppm
2008-05-02<0.01 ppm20< .01 to 0.0012 ppm
2008-05-01<0.01 ppm20< .01 to 0.000972 ppm
2008-04-30<0.01 ppm30< .01 to 0.00791 ppm
2008-04-29<0.01 ppm110< .01 to 0.00604 ppm
2008-04-28<0.01 ppm30< .01 to 0.00122 ppm
2008-04-27<0.01 ppm20< .01 to 0.0014 ppm
2008-04-26<0.01 ppm20< .01 to 0.00132 ppm
2008-04-25<0.01 ppm20< .01 to 0.00118 ppm
2008-04-24<0.01 ppm20< .01 to 0.00115 ppm
2008-04-23<0.01 ppm40< .01 to 0.00845 ppm
2008-04-22<0.01 ppm120< .01 to 0.00904 ppm
2008-04-21<0.01 ppm20< .01 to 0.00682 ppm
2008-04-17<0.01 ppm10< .01 to 0.00832 ppm
2008-04-16<0.01 ppm40<0.01 to 0.01 ppm
2008-04-15<0.01 ppm120<0.01 to 0.01 ppm
2008-04-14<0.01 ppm40< .01 to 0.00437 ppm
2008-04-09<0.01 ppm20< .01 to 0.00795 ppm
2008-04-08<0.01 ppm90<0.01 to 0.01 ppm
2008-04-07<0.01 ppm10< .01 to 0.00452 ppm
2008-04-02<0.01 ppm10< .01 to 0.00726 ppm
2008-04-01<0.01 ppm60< .01 to 0.00934 ppm
2008-03-27<0.01 ppm80< .01 to 0.00919 ppm
2008-03-25<0.01 ppm10< .01 to 0.00341 ppm
2008-03-24<0.01 ppm10< .01 to 0.000787 ppm
2008-03-21<0.01 ppm10< .01 to 0.00968 ppm
2008-03-19<0.01 ppm30< .01 to 0.00923 ppm
2008-03-18<0.01 ppm60< .01 to 0.00726 ppm
2008-03-17<0.01 ppm20< .01 to 0.00495 ppm
2008-03-12<0.01 ppm10< .01 to 0.00761 ppm
2008-03-11<0.01 ppm80< .01 to 0.00738 ppm
2008-03-10<0.01 ppm10< .01 to 0.00464 ppm
2008-03-05<0.01 ppm30< .01 to 0.00754 ppm
2008-03-04<0.01 ppm90<0.01 to 0.01 ppm
2008-03-03<0.01 ppm10< .01 to 0.000808 ppm
2008-02-27<0.01 ppm30< .01 to 0.00818 ppm
2008-02-26<0.01 ppm30< .01 to 0.00335 ppm
2008-02-25<0.01 ppm40< .01 to 0.00386 ppm
2008-02-20<0.01 ppm30< .01 to 0.00737 ppm
2008-02-19<0.01 ppm110< .01 to 0.00457 ppm
2008-02-14<0.01 ppm10< .01 to 0.000197 ppm
2008-02-13<0.01 ppm20< .01 to 0.00771 ppm
2008-02-12<0.01 ppm80<0.01 to 0.01 ppm
2008-02-11<0.01 ppm10< .01 to 0.00623 ppm
2008-02-07<0.01 ppm20< .01 to 0.00797 ppm
2008-02-05<0.01 ppm70<0.01 to 0.01 ppm
2008-02-04<0.01 ppm30< .01 to 0.00882 ppm
2008-01-30<0.01 ppm10< .01 to 0.00763 ppm
2008-01-29<0.01 ppm30< .01 to 0.00362 ppm
2008-01-28<0.01 ppm10< .01 to 0.000719 ppm
2008-01-23<0.01 ppm10< .01 to 0.00776 ppm
2008-01-22<0.01 ppm40< .01 to 0.00282 ppm
2008-01-17<0.01 ppm10< .01 to 0.0074 ppm
2008-01-15<0.01 ppm50<0.01 to 0.01 ppm
2008-01-09<0.01 ppm20< .01 to 0.00765 ppm
2008-01-07<0.01 ppm60<0.01 to 0.01 ppm
2008-01-02<0.01 ppm30< .01 to 0.00754 ppm
2007-12-26<0.01 ppm40< .01 to 0.00739 ppm
2007-12-24<0.01 ppm10< .01 to 0.000878 ppm
2007-12-19<0.01 ppm10< .01 to 0.00735 ppm
2007-12-18<0.01 ppm20< .01 to 0.00106 ppm
2007-12-17<0.01 ppm40< .01 to 0.00394 ppm
2007-12-12<0.01 ppm10< .01 to 0.00698 ppm
2007-12-11<0.01 ppm50<0.01 to 0.01 ppm
2007-12-10<0.01 ppm20< .01 to 0.00796 ppm
2007-12-07<0.01 ppm20< .01 to 0.00726 ppm
2007-12-06<0.01 ppm20< .01 to 0.00703 ppm
2007-12-05<0.01 ppm20< .01 to 0.00602 ppm
2007-12-04<0.01 ppm80<0.01 to 0.01 ppm
2007-12-03<0.01 ppm20<0.01 to 0.01 ppm
2007-11-300.02 ppm200.01 to 0.02 ppm
2007-11-29<0.01 ppm20<0.01 to 0.01 ppm
2007-11-27<0.01 ppm50< .01 to 0.00387 ppm
2007-11-26<0.01 ppm10< .01 to 0.000711 ppm
2007-11-20<0.01 ppm70< .01 to 0.00716 ppm
2007-11-19<0.01 ppm30< .01 to 0.00954 ppm
2007-11-18<0.01 ppm20< .01 to 0.00642 ppm
2007-11-17<0.01 ppm20< .01 to 0.00805 ppm
2007-11-16<0.01 ppm110<0.01 to 0.01 ppm
2007-11-15<0.01 ppm140<0.01 to 0.01 ppm
2007-11-14<0.01 ppm140<0.01 to 0.01 ppm
2007-11-13<0.01 ppm200<0.01 to 0.02 ppm
2007-11-12<0.01 ppm130< .01 to 0.00764 ppm
2007-11-11<0.01 ppm130< .01 to 0.00757 ppm
2007-11-10<0.01 ppm130< .01 to 0.0078 ppm
2007-11-09<0.01 ppm140<0.01 to 0.01 ppm
2007-11-08<0.01 ppm130< .01 to 0.00778 ppm
2007-11-07<0.01 ppm150<0.01 to 0.01 ppm
2007-11-06<0.01 ppm190<0.01 to 0.01 ppm
2007-11-05<0.01 ppm110< .01 to 0.00779 ppm
2007-11-04<0.01 ppm100< .01 to 0.00788 ppm
2007-11-03<0.01 ppm110<0.01 to 0.01 ppm
2007-11-02<0.01 ppm120<0.01 to 0.01 ppm
2007-11-01<0.01 ppm100< .01 to 0.00784 ppm
2007-10-31<0.01 ppm100< .01 to 0.0076 ppm
2007-10-30<0.01 ppm130< .01 to 0.00777 ppm
2007-10-29<0.01 ppm100< .01 to 0.00746 ppm
2007-10-28<0.01 ppm100< .01 to 0.0075 ppm
2007-10-27<0.01 ppm100< .01 to 0.00805 ppm
2007-10-26<0.01 ppm100< .01 to 0.00735 ppm
2007-10-25<0.01 ppm100< .01 to 0.00749 ppm
2007-10-24<0.01 ppm100< .01 to 0.00757 ppm
2007-10-23<0.01 ppm140< .01 to 0.0077 ppm
2007-10-22<0.01 ppm110< .01 to 0.00788 ppm
2007-10-21<0.01 ppm100< .01 to 0.00788 ppm
2007-10-20<0.01 ppm100< .01 to 0.00793 ppm
2007-10-19<0.01 ppm100< .01 to 0.00863 ppm
2007-10-18<0.01 ppm100< .01 to 0.00791 ppm
2007-10-17<0.01 ppm120<0.01 to 0.01 ppm
2007-10-16<0.01 ppm170< .01 to 0.00788 ppm
2007-10-15<0.01 ppm130< .01 to 0.00798 ppm
2007-10-14<0.01 ppm120< .01 to 0.00805 ppm
2007-10-13<0.01 ppm120< .01 to 0.00792 ppm
2007-10-12<0.01 ppm120< .01 to 0.00758 ppm
2007-10-11<0.01 ppm120< .01 to 0.00793 ppm
2007-10-10<0.01 ppm140< .01 to 0.00784 ppm
2007-10-09<0.01 ppm170<0.01 to 0.01 ppm
2007-10-08<0.01 ppm120< .01 to 0.00776 ppm
2007-10-07<0.01 ppm120< .01 to 0.00791 ppm
2007-10-06<0.01 ppm120< .01 to 0.00815 ppm
2007-10-05<0.01 ppm120< .01 to 0.00813 ppm
2007-10-04<0.01 ppm120< .01 to 0.00851 ppm
2007-10-03<0.01 ppm120< .01 to 0.00788 ppm
2007-10-02<0.01 ppm180<0.01 to 0.01 ppm
2007-10-01<0.01 ppm120< .01 to 0.00822 ppm
2007-09-30<0.01 ppm120< .01 to 0.00782 ppm
2007-09-29<0.01 ppm120< .01 to 0.00819 ppm
2007-09-28<0.01 ppm120< .01 to 0.00774 ppm
2007-09-27<0.01 ppm120< .01 to 0.00788 ppm
2007-09-26<0.01 ppm120< .01 to 0.00984 ppm
2007-09-25<0.01 ppm150< .01 to 0.00844 ppm
2007-09-24<0.01 ppm110< .01 to 0.00752 ppm
2007-09-23<0.01 ppm100< .01 to 0.00815 ppm
2007-09-22<0.01 ppm120< .01 to 0.00848 ppm
2007-09-21<0.01 ppm120< .01 to 0.00828 ppm
2007-09-20<0.01 ppm120< .01 to 0.00776 ppm
2007-09-19<0.01 ppm130<0.01 to 0.01 ppm
2007-09-18<0.01 ppm170< .01 to 0.00773 ppm
2007-09-17<0.01 ppm120< .01 to 0.00771 ppm
2007-09-16<0.01 ppm120< .01 to 0.00768 ppm
2007-09-15<0.01 ppm120< .01 to 0.00772 ppm
2007-09-14<0.01 ppm120< .01 to 0.00764 ppm
2007-09-13<0.01 ppm120< .01 to 0.00814 ppm
2007-09-12<0.01 ppm120< .01 to 0.00846 ppm
2007-09-11<0.01 ppm160< .01 to 0.00792 ppm
2007-09-10<0.01 ppm120< .01 to 0.00776 ppm
2007-09-09<0.01 ppm120< .01 to 0.00832 ppm
2007-09-08<0.01 ppm120< .01 to 0.00779 ppm
2007-09-07<0.01 ppm120< .01 to 0.0078 ppm
2007-09-06<0.01 ppm120< .01 to 0.00754 ppm
2007-09-05<0.01 ppm130< .01 to 0.00803 ppm
2007-09-04<0.01 ppm190<0.01 to 0.01 ppm
2007-09-03<0.01 ppm120< .01 to 0.00779 ppm
2007-09-02<0.01 ppm120< .01 to 0.00786 ppm
2007-09-01<0.01 ppm120< .01 to 0.00742 ppm
2007-08-31<0.01 ppm100< .01 to 0.00795 ppm
2007-08-30<0.01 ppm130< .01 to 0.00773 ppm
2007-08-29<0.01 ppm100< .01 to 0.00769 ppm
2007-08-28<0.01 ppm160< .01 to 0.00883 ppm
2007-08-27<0.01 ppm110< .01 to 0.00834 ppm
2007-08-26<0.01 ppm100< .01 to 0.00801 ppm
2007-08-25<0.01 ppm100< .01 to 0.00789 ppm
2007-08-24<0.01 ppm100< .01 to 0.00758 ppm
2007-08-23<0.01 ppm120< .01 to 0.00808 ppm
2007-08-22<0.01 ppm120< .01 to 0.00808 ppm
2007-08-21<0.01 ppm190<0.01 to 0.01 ppm
2007-08-20<0.01 ppm120< .01 to 0.00792 ppm
2007-08-19<0.01 ppm120< .01 to 0.00802 ppm
2007-08-18<0.01 ppm120< .01 to 0.0079 ppm
2007-08-17<0.01 ppm120< .01 to 0.00767 ppm
2007-08-16<0.01 ppm130< .01 to 0.00868 ppm
2007-08-15<0.01 ppm130<0.01 to 0.01 ppm
2007-08-14<0.01 ppm170<0.01 to 0.02 ppm
2007-08-13<0.01 ppm120< .01 to 0.00823 ppm
2007-08-12<0.01 ppm120< .01 to 0.00814 ppm
2007-08-11<0.01 ppm120< .01 to 0.0078 ppm
2007-08-10<0.01 ppm120< .01 to 0.00764 ppm
2007-08-09<0.01 ppm120< .01 to 0.00792 ppm
2007-08-08<0.01 ppm140< .01 to 0.00822 ppm
2007-08-07<0.01 ppm160<0.01 to 0.01 ppm
2007-08-06<0.01 ppm120< .01 to 0.00852 ppm
2007-08-05<0.01 ppm120< .01 to 0.00789 ppm
2007-08-04<0.01 ppm120< .01 to 0.00776 ppm
2007-08-03<0.01 ppm120< .01 to 0.00716 ppm
2007-08-02<0.01 ppm120< .01 to 0.00786 ppm
2007-08-01<0.01 ppm140< .01 to 0.00782 ppm
2007-07-31<0.01 ppm170< .01 to 0.00791 ppm
2007-07-30<0.01 ppm140< .01 to 0.00827 ppm
2007-07-29<0.01 ppm140< .01 to 0.0077 ppm
2007-07-28<0.01 ppm140< .01 to 0.00785 ppm
2007-07-27<0.01 ppm150< .01 to 0.0078 ppm
2007-07-26<0.01 ppm140< .01 to 0.00714 ppm
2007-07-25<0.01 ppm140< .01 to 0.00712 ppm
2007-07-24<0.01 ppm180< .01 to 0.00768 ppm
2007-07-23<0.01 ppm150< .01 to 0.00774 ppm
2007-07-22<0.01 ppm140< .01 to 0.00895 ppm
2007-07-21<0.01 ppm140< .01 to 0.00863 ppm
2007-07-20<0.01 ppm140< .01 to 0.00841 ppm
2007-07-19<0.01 ppm160< .01 to 0.00746 ppm
2007-07-18<0.01 ppm150<0.01 to 0.01 ppm
2007-07-17<0.01 ppm190<0.01 to 0.02 ppm
2007-07-16<0.01 ppm120< .01 to 0.00755 ppm
2007-07-15<0.01 ppm120< .01 to 0.00857 ppm
2007-07-14<0.01 ppm120< .01 to 0.00824 ppm
2007-07-13<0.01 ppm120< .01 to 0.008 ppm
2007-07-12<0.01 ppm120< .01 to 0.00784 ppm
2007-07-11<0.01 ppm170< .01 to 0.00948 ppm
2007-07-10<0.01 ppm210<0.01 to 0.01 ppm
2007-07-09<0.01 ppm160<0.01 to 0.01 ppm
2007-07-08<0.01 ppm160< .01 to 0.00859 ppm
2007-07-07<0.01 ppm160< .01 to 0.00815 ppm
2007-07-06<0.01 ppm160< .01 to 0.00907 ppm
2007-07-05<0.01 ppm160< .01 to 0.0079 ppm
2007-07-04<0.01 ppm160< .01 to 0.00801 ppm
2007-07-03<0.01 ppm220<0.01 to 0.01 ppm
2007-07-02<0.01 ppm160< .01 to 0.00814 ppm
2007-07-01<0.01 ppm160< .01 to 0.00841 ppm
2007-06-30<0.01 ppm160< .01 to 0.00807 ppm
2007-06-29<0.01 ppm160< .01 to 0.00791 ppm
2007-06-28<0.01 ppm140< .01 to 0.00851 ppm
2007-06-27<0.01 ppm150< .01 to 0.00804 ppm
2007-06-26<0.01 ppm190< .01 to 0.00776 ppm
2007-06-25<0.01 ppm150< .01 to 0.00796 ppm
2007-06-24<0.01 ppm140< .01 to 0.00843 ppm
2007-06-23<0.01 ppm140< .01 to 0.00822 ppm
2007-06-22<0.01 ppm150< .01 to 0.0098 ppm
2007-06-21<0.01 ppm140< .01 to 0.00803 ppm
2007-06-20<0.01 ppm160<0.01 to 0.01 ppm
2007-06-19<0.01 ppm200< .01 to 0.00783 ppm
2007-06-18<0.01 ppm150< .01 to 0.00863 ppm
2007-06-17<0.01 ppm140< .01 to 0.00764 ppm
2007-06-16<0.01 ppm140< .01 to 0.00695 ppm
2007-06-15<0.01 ppm140< .01 to 0.00804 ppm
2007-06-14<0.01 ppm140< .01 to 0.0078 ppm
2007-06-13<0.01 ppm160< .01 to 0.0076 ppm
2007-06-121.25 ppm300<0.01 to 9.53 ppm
2007-06-11<0.01 ppm140< .01 to 0.00698 ppm
2007-06-10<0.01 ppm140< .01 to 0.00781 ppm
2007-06-09<0.01 ppm140< .01 to 0.00818 ppm
2007-06-08<0.01 ppm170< .01 to 0.0097 ppm
2007-06-07<0.01 ppm170<0.01 to 0.01 ppm
2007-06-06<0.01 ppm140< .01 to 0.00764 ppm
2007-06-05<0.01 ppm190<0.01 to 0.01 ppm
2007-06-04<0.01 ppm140< .01 to 0.00742 ppm
2007-06-03<0.01 ppm140< .01 to 0.00755 ppm
2007-06-02<0.01 ppm140< .01 to 0.00758 ppm
2007-06-01<0.01 ppm140< .01 to 0.00737 ppm
2007-05-31<0.01 ppm140< .01 to 0.0099 ppm
2007-05-30<0.01 ppm140< .01 to 0.00729 ppm
2007-05-29<0.01 ppm170< .01 to 0.00763 ppm
2007-05-28<0.01 ppm120< .01 to 0.00799 ppm
2007-05-27<0.01 ppm120< .01 to 0.00727 ppm
2007-05-26<0.01 ppm140< .01 to 0.00775 ppm
2007-05-25<0.01 ppm140< .01 to 0.00752 ppm
2007-05-24<0.01 ppm150< .01 to 0.00776 ppm
2007-05-23<0.01 ppm140< .01 to 0.00753 ppm
2007-05-22<0.01 ppm180< .01 to 0.00772 ppm
2007-05-21<0.01 ppm140< .01 to 0.0077 ppm
2007-05-20<0.01 ppm140< .01 to 0.0077 ppm
2007-05-19<0.01 ppm140< .01 to 0.00763 ppm
2007-05-18<0.01 ppm140< .01 to 0.00743 ppm
2007-05-17<0.01 ppm140< .01 to 0.0074 ppm
2007-05-16<0.01 ppm150< .01 to 0.00972 ppm
2007-05-15<0.01 ppm200< .01 to 0.00761 ppm
2007-05-14<0.01 ppm150<0.01 to 0.01 ppm
2007-05-13<0.01 ppm120< .01 to 0.00787 ppm
2007-05-12<0.01 ppm120< .01 to 0.00724 ppm
2007-05-11<0.01 ppm140< .01 to 0.00738 ppm
2007-05-10<0.01 ppm140< .01 to 0.0079 ppm
2007-05-09<0.01 ppm160< .01 to 0.00737 ppm
2007-05-08<0.01 ppm190< .01 to 0.00795 ppm
2007-05-07<0.01 ppm140< .01 to 0.00745 ppm
2007-05-06<0.01 ppm140< .01 to 0.00728 ppm
2007-05-05<0.01 ppm140< .01 to 0.00736 ppm
2007-05-04<0.01 ppm140< .01 to 0.00768 ppm
2007-05-03<0.01 ppm140< .01 to 0.00747 ppm
2007-05-02<0.01 ppm140< .01 to 0.00731 ppm
2007-05-01<0.01 ppm190<0.01 to 0.01 ppm
2007-04-30<0.01 ppm140< .01 to 0.00756 ppm
2007-04-25<0.01 ppm30< .01 to 0.00893 ppm
2007-04-24<0.01 ppm130<0.01 to 0.01 ppm
2007-04-20<0.01 ppm20< .01 to 0.00919 ppm
2007-04-19<0.01 ppm40<0.01 to 0.01 ppm
2007-04-18<0.01 ppm20< .01 to 0.00944 ppm
2007-04-17<0.01 ppm130< .01 to 0.00885 ppm
2007-04-16<0.01 ppm30<0.01 to 0.01 ppm
2007-04-130.01 ppm200.01 ppm
2007-04-11<0.01 ppm10< .01 to 0.00878 ppm
2007-04-10<0.01 ppm130< .01 to 0.00764 ppm
2007-04-04<0.01 ppm50< .01 to 0.00968 ppm
2007-04-03<0.01 ppm140<0.01 to 0.01 ppm
2007-04-02<0.01 ppm10< .01 to 0.00535 ppm
2007-03-30<0.01 ppm20< .01 to 0.00995 ppm
2007-03-28<0.01 ppm70< .01 to 0.00587 ppm
2007-03-27<0.01 ppm40< .01 to 0.00654 ppm
2007-03-22<0.01 ppm10< .01 to 0.00706 ppm
2007-03-21<0.01 ppm50< .01 to 0.00953 ppm
2007-03-20<0.01 ppm60<0.01 to 0.01 ppm
2007-03-19<0.01 ppm20<0.01 to 0.01 ppm
2007-03-15<0.01 ppm40<0.01 to 0.01 ppm
2007-03-14<0.01 ppm70< .01 to 0.00954 ppm
2007-03-13<0.01 ppm90< .01 to 0.00725 ppm
2007-03-07<0.01 ppm100<0.01 to 0.01 ppm
2007-03-06<0.01 ppm90<0.01 to 0.01 ppm
2007-02-28<0.01 ppm10< .01 to 0.000677 ppm
2007-02-22<0.01 ppm20< .01 to 0.0032 ppm
2007-02-21<0.01 ppm80< .01 to 0.0095 ppm
2007-02-20<0.01 ppm100< .01 to 0.00885 ppm
2007-02-15<0.01 ppm10< .01 to 0.0032 ppm
2007-02-14<0.01 ppm100< .01 to 0.00933 ppm
2007-02-13<0.01 ppm110< .01 to 0.00742 ppm
2007-02-07<0.01 ppm110<0.01 to 0.01 ppm
2007-02-06<0.01 ppm100< .01 to 0.00643 ppm
2007-01-31<0.01 ppm20< .01 to 0.00281 ppm
2007-01-30<0.01 ppm60< .01 to 0.00811 ppm
2007-01-24<0.01 ppm60< .01 to 0.00768 ppm
2007-01-23<0.01 ppm50< .01 to 0.00755 ppm
2007-01-17<0.01 ppm120< .01 to 0.00918 ppm
2007-01-10<0.01 ppm50< .01 to 0.00785 ppm
2007-01-09<0.01 ppm70< .01 to 0.00737 ppm
2007-01-08<0.01 ppm10< .01 to 0.00111 ppm
2007-01-03<0.01 ppm90<0.01 to 0.01 ppm
2007-01-02<0.01 ppm100< .01 to 0.00718 ppm
2006-12-27<0.01 ppm50< .01 to 0.00696 ppm
2006-12-26<0.01 ppm50< .01 to 0.00624 ppm
2006-12-20<0.01 ppm40< .01 to 0.00862 ppm
2006-12-19<0.01 ppm90< .01 to 0.00634 ppm
2006-12-13<0.01 ppm110< .01 to 0.00638 ppm
2006-12-11<0.01 ppm10< .01 to 0.00686 ppm
2006-12-06<0.01 ppm100<0.01 to 0.01 ppm
2006-12-05<0.01 ppm100< .01 to 0.00737 ppm
2006-11-29<0.01 ppm40< .01 to 0.00724 ppm
2006-11-27<0.01 ppm60< .01 to 0.00883 ppm
2006-11-22<0.01 ppm50< .01 to 0.00685 ppm
2006-11-21<0.01 ppm70< .01 to 0.00801 ppm
2006-11-15<0.01 ppm80<0.01 to 0.01 ppm
2006-11-14<0.01 ppm10< .01 to 0.0075 ppm
2006-11-13<0.01 ppm50< .01 to 0.00607 ppm
2006-11-08<0.01 ppm60< .01 to 0.00733 ppm
2006-11-07<0.01 ppm90< .01 to 0.00787 ppm
2006-11-01<0.01 ppm110<0.01 to 0.01 ppm
2006-10-25<0.01 ppm50< .01 to 0.0064 ppm
2006-10-24<0.01 ppm50< .01 to 0.00664 ppm
2006-10-18<0.01 ppm60< .01 to 0.00857 ppm
2006-10-17<0.01 ppm50< .01 to 0.00951 ppm
2006-10-11<0.01 ppm60< .01 to 0.00728 ppm
2006-10-10<0.01 ppm60< .01 to 0.00842 ppm
2006-10-04<0.01 ppm90<0.01 to 0.01 ppm
2006-10-03<0.01 ppm100< .01 to 0.00851 ppm
2006-09-27<0.01 ppm50< .01 to 0.0079 ppm
2006-09-26<0.01 ppm40< .01 to 0.00761 ppm
2006-09-20<0.01 ppm60< .01 to 0.00932 ppm
2006-09-19<0.01 ppm40< .01 to 0.00756 ppm
2006-09-13<0.01 ppm60< .01 to 0.00849 ppm
2006-09-12<0.01 ppm70< .01 to 0.00791 ppm
2006-09-06<0.01 ppm100< .01 to 0.00953 ppm
2006-09-05<0.01 ppm110< .01 to 0.00683 ppm
2006-08-30<0.01 ppm50< .01 to 0.00751 ppm
2006-08-29<0.01 ppm50< .01 to 0.00712 ppm
2006-08-23<0.01 ppm40< .01 to 0.00813 ppm
2006-08-22<0.01 ppm60< .01 to 0.00763 ppm
2006-08-16<0.01 ppm70< .01 to 0.00956 ppm
2006-08-15<0.01 ppm50< .01 to 0.00854 ppm
2006-08-09<0.01 ppm70< .01 to 0.00825 ppm
2006-08-08<0.01 ppm90< .01 to 0.00805 ppm
2006-08-03<0.01 ppm20< .01 to 0.00551 ppm
2006-08-02<0.01 ppm60<0.01 to 0.01 ppm
2006-08-01<0.01 ppm100< .01 to 0.00815 ppm
2006-07-31<0.01 ppm10< .01 to 0.00225 ppm
2006-07-27<0.01 ppm20< .01 to 0.00957 ppm
2006-07-26<0.01 ppm50< .01 to 0.00828 ppm
2006-07-25<0.01 ppm50< .01 to 0.00822 ppm
2006-07-20<0.01 ppm10< .01 to 0.0058 ppm
2006-07-19<0.01 ppm60< .01 to 0.00964 ppm
2006-07-18<0.01 ppm60< .01 to 0.00993 ppm
2006-07-14<0.01 ppm20< .01 to 0.00661 ppm
2006-07-13<0.01 ppm10< .01 to 0.00737 ppm
2006-07-12<0.01 ppm50<0.01 to 0.01 ppm
2006-07-11<0.01 ppm60< .01 to 0.00785 ppm
2006-07-05<0.01 ppm2110 to 0.01 ppm
2006-06-29<0.01 ppm10< .01 to 0.000408 ppm
2006-06-28<0.01 ppm80< .01 to 0.00807 ppm
2006-06-27<0.01 ppm40< .01 to 0.00875 ppm
2006-06-22<0.01 ppm10< .01 to 0.0045 ppm
2006-06-21<0.01 ppm70< .01 to 0.00824 ppm
2006-06-20<0.01 ppm40< .01 to 0.00832 ppm
2006-06-14<0.01 ppm60< .01 to 0.00957 ppm
2006-06-13<0.01 ppm50< .01 to 0.00837 ppm
2006-06-07<0.01 ppm1310 to 0.01 ppm
2006-06-06<0.01 ppm100< .01 to 0.00832 ppm
2006-05-31<0.01 ppm80< .01 to 0.00782 ppm
2006-05-30<0.01 ppm30< .01 to 0.0083 ppm
2006-05-26<0.01 ppm10< .01 to 0.00615 ppm
2006-05-25<0.01 ppm20< .01 to 0.00691 ppm
2006-05-24<0.01 ppm50< .01 to 0.00802 ppm
2006-05-23<0.01 ppm80< .01 to 0.00806 ppm
2006-05-19<0.01 ppm20< .01 to 0.00738 ppm
2006-05-18<0.01 ppm10< .01 to 0.008 ppm
2006-05-17<0.01 ppm120< .01 to 0.0092 ppm
2006-05-16<0.01 ppm80< .01 to 0.00789 ppm
2006-05-10<0.01 ppm40< .01 to 0.00714 ppm
2006-05-09<0.01 ppm40< .01 to 0.00782 ppm
2006-05-08<0.01 ppm130< .01 to 0.00921 ppm
2006-05-03<0.01 ppm130< .01 to 0.00727 ppm
2006-05-02<0.01 ppm80< .01 to 0.00792 ppm
2006-04-26<0.01 ppm40< .01 to 0.00738 ppm
2006-04-25<0.01 ppm50< .01 to 0.00651 ppm
2006-04-19<0.01 ppm70< .01 to 0.00938 ppm
2006-04-18<0.01 ppm60< .01 to 0.00761 ppm
2006-04-12<0.01 ppm50< .01 to 0.00748 ppm
2006-04-11<0.01 ppm50< .01 to 0.00732 ppm
2006-04-05<0.01 ppm121< .01 to 0.0077 ppm
2006-04-04<0.01 ppm100< .01 to 0.00702 ppm
2006-03-30<0.01 ppm20< .01 to 0.00674 ppm
2006-03-29<0.01 ppm30< .01 to 0.00569 ppm
2006-03-28<0.01 ppm40< .01 to 0.00672 ppm
2006-03-22<0.01 ppm60< .01 to 0.00833 ppm
2006-03-21<0.01 ppm40< .01 to 0.00621 ppm
2006-03-15<0.01 ppm60< .01 to 0.0093 ppm
2006-03-14<0.01 ppm70< .01 to 0.00708 ppm
2006-03-08<0.01 ppm50< .01 to 0.00786 ppm
2006-03-07<0.01 ppm100< .01 to 0.00889 ppm
2006-03-02<0.01 ppm50< .01 to 0.0031 ppm
2006-03-01<0.01 ppm80< .01 to 0.00774 ppm
2006-02-28<0.01 ppm70< .01 to 0.008 ppm
2006-02-24<0.01 ppm40< .01 to 0.00755 ppm
2006-02-22<0.01 ppm40< .01 to 0.00343 ppm
2006-02-21<0.01 ppm80< .01 to 0.00706 ppm
2006-02-15<0.01 ppm120< .01 to 0.00714 ppm
2006-02-14<0.01 ppm100< .01 to 0.00954 ppm
2006-02-08<0.01 ppm120< .01 to 0.0073 ppm
2006-02-07<0.01 ppm90< .01 to 0.00843 ppm
2006-02-01<0.01 ppm140< .01 to 0.00781 ppm
2006-01-31<0.01 ppm20< .01 to 0.00931 ppm
2006-01-26<0.01 ppm10< .01 to 0.00598 ppm
2006-01-25<0.01 ppm30< .01 to 0.00788 ppm
2006-01-24<0.01 ppm21< .01 to 0.00883 ppm
2006-01-18<0.01 ppm50< .01 to 0.008 ppm
2006-01-17<0.01 ppm20< .01 to 0.00852 ppm
2006-01-12<0.01 ppm10< .01 to 0.00453 ppm
2006-01-11<0.01 ppm40< .01 to 0.0081 ppm
2006-01-10<0.01 ppm30< .01 to 0.00877 ppm
2006-01-04<0.01 ppm60< .01 to 0.00792 ppm
2006-01-03<0.01 ppm130< .01 to 0.0089 ppm
2005-12-28<0.01 ppm70< .01 to 0.00786 ppm
2005-12-27<0.01 ppm30< .01 to 0.00691 ppm
2005-12-21<0.01 ppm20< .01 to 0.00825 ppm
2005-12-20<0.01 ppm70< .01 to 0.00693 ppm
2005-12-14<0.01 ppm30< .01 to 0.00791 ppm
2005-12-13<0.01 ppm90< .01 to 0.00733 ppm
2005-12-09<0.01 ppm20< .01 to 0.00402 ppm
2005-12-08<0.01 ppm10< .01 to 0.00346 ppm
2005-12-07<0.01 ppm100< .01 to 0.00765 ppm
2005-12-06<0.01 ppm100< .01 to 0.00926 ppm
2005-12-05<0.01 ppm10< .01 to 0.00324 ppm
2005-12-04<0.01 ppm10< .01 to 0.00282 ppm
2005-12-03<0.01 ppm10< .01 to 0.00281 ppm
2005-12-02<0.01 ppm10< .01 to 0.00252 ppm
2005-12-01<0.01 ppm10< .01 to 0.00168 ppm
2005-11-30<0.01 ppm10< .01 to 0.00157 ppm
2005-11-29<0.01 ppm30< .01 to 0.00948 ppm
2005-11-23<0.01 ppm20< .01 to 0.00647 ppm
2005-11-22<0.01 ppm160< .01 to 0.00962 ppm
2005-11-16<0.01 ppm50< .01 to 0.00787 ppm
2005-11-15<0.01 ppm110< .01 to 0.00872 ppm
2005-11-09<0.01 ppm80< .01 to 0.00783 ppm
2005-11-08<0.01 ppm120< .01 to 0.00923 ppm
2005-11-02<0.01 ppm70< .01 to 0.00744 ppm
2005-11-01<0.01 ppm130< .01 to 0.00942 ppm
2005-10-27<0.01 ppm40< .01 to 0.00749 ppm
2005-10-26<0.01 ppm70< .01 to 0.00681 ppm
2005-10-25<0.01 ppm90< .01 to 0.00966 ppm
2005-10-19<0.01 ppm50< .01 to 0.00726 ppm
2005-10-18<0.01 ppm110< .01 to 0.00957 ppm
2005-10-12<0.01 ppm70< .01 to 0.00699 ppm
2005-10-11<0.01 ppm110< .01 to 0.00876 ppm
2005-10-06<0.01 ppm50< .01 to 0.00769 ppm
2005-10-05<0.01 ppm70< .01 to 0.00705 ppm
2005-10-04<0.01 ppm70< .01 to 0.00857 ppm
2005-09-29<0.01 ppm40<0.01 to 0.01 ppm
2005-09-28<0.01 ppm60< .01 to 0.00789 ppm
2005-09-27<0.01 ppm120< .01 to 0.00949 ppm
2005-09-22<0.01 ppm40< .01 to 0.00642 ppm
2005-09-21<0.01 ppm20< .01 to 0.00579 ppm
2005-09-20<0.01 ppm110< .01 to 0.00799 ppm
2005-09-15<0.01 ppm60< .01 to 0.00672 ppm
2005-09-14<0.01 ppm20< .01 to 0.00509 ppm
2005-09-13<0.01 ppm130< .01 to 0.00825 ppm
2005-09-07<0.01 ppm60< .01 to 0.00701 ppm
2005-09-06<0.01 ppm170< .01 to 0.00946 ppm
2005-09-01<0.01 ppm10< .01 to 0.00615 ppm
2005-08-30<0.01 ppm50< .01 to 0.00906 ppm
2005-08-26<0.01 ppm10< .01 to 0.00744 ppm
2005-08-25<0.01 ppm40< .01 to 0.00774 ppm
2005-08-24<0.01 ppm40< .01 to 0.00759 ppm
2005-08-23<0.01 ppm121< .01 to 0.00906 ppm
2005-08-22<0.01 ppm10< .01 to 0.00793 ppm
2005-08-17<0.01 ppm20< .01 to 0.00742 ppm
2005-08-16<0.01 ppm110< .01 to 0.00921 ppm
2005-08-15<0.01 ppm10< .01 to 0.00844 ppm
2005-08-14<0.01 ppm10< .01 to 0.00888 ppm
2005-08-13<0.01 ppm10< .01 to 0.00772 ppm
2005-08-12<0.01 ppm10< .01 to 0.00854 ppm
2005-08-11<0.01 ppm10< .01 to 0.00812 ppm
2005-08-10<0.01 ppm40< .01 to 0.00772 ppm
2005-08-09<0.01 ppm100< .01 to 0.00962 ppm
2005-08-08<0.01 ppm10< .01 to 0.00821 ppm
2005-08-03<0.01 ppm110< .01 to 0.00964 ppm
2005-08-02<0.01 ppm130< .01 to 0.00837 ppm
2005-08-01<0.01 ppm10< .01 to 0.00842 ppm
2005-07-31<0.01 ppm10< .01 to 0.00741 ppm
2005-07-30<0.01 ppm10< .01 to 0.00846 ppm
2005-07-29<0.01 ppm10< .01 to 0.00839 ppm
2005-07-28<0.01 ppm10< .01 to 0.00849 ppm
2005-07-27<0.01 ppm90< .01 to 0.00818 ppm
2005-07-26<0.01 ppm200< .01 to 0.00886 ppm
2005-07-25<0.01 ppm10< .01 to 0.00787 ppm
2005-07-24<0.01 ppm10< .01 to 0.00765 ppm
2005-07-23<0.01 ppm10< .01 to 0.00824 ppm
2005-07-22<0.01 ppm10< .01 to 0.0082 ppm
2005-07-21<0.01 ppm10< .01 to 0.00852 ppm
2005-07-20<0.01 ppm70< .01 to 0.00807 ppm
2005-07-19<0.01 ppm140< .01 to 0.00945 ppm
2005-07-18<0.01 ppm10< .01 to 0.00796 ppm
2005-07-15<0.01 ppm10< .01 to 0.00837 ppm
2005-07-14<0.01 ppm10< .01 to 0.0089 ppm
2005-07-13<0.01 ppm60< .01 to 0.00772 ppm
2005-07-12<0.01 ppm160< .01 to 0.00966 ppm
2005-07-07<0.01 ppm10< .01 to 0.00853 ppm
2005-07-06<0.01 ppm60< .01 to 0.0089 ppm
2005-07-05<0.01 ppm130< .01 to 0.00734 ppm
2005-06-30<0.01 ppm10< .01 to 0.00836 ppm
2005-06-29<0.01 ppm20< .01 to 0.00748 ppm
2005-06-28<0.01 ppm210<0.01 to 0.01 ppm
2005-06-27<0.01 ppm10< .01 to 0.00889 ppm
2005-06-26<0.01 ppm10< .01 to 0.00859 ppm
2005-06-25<0.01 ppm10< .01 to 0.00868 ppm
2005-06-24<0.01 ppm10< .01 to 0.0077 ppm
2005-06-23<0.01 ppm10< .01 to 0.00788 ppm
2005-06-22<0.01 ppm80< .01 to 0.00783 ppm
2005-06-21<0.01 ppm150< .01 to 0.00843 ppm
2005-06-20<0.01 ppm10< .01 to 0.00639 ppm
2005-06-19<0.01 ppm10< .01 to 0.00742 ppm
2005-06-18<0.01 ppm10< .01 to 0.00861 ppm
2005-06-17<0.01 ppm10< .01 to 0.00953 ppm
2005-06-16<0.01 ppm10< .01 to 0.00804 ppm
2005-06-15<0.01 ppm70< .01 to 0.00765 ppm
2005-06-14<0.01 ppm180< .01 to 0.00922 ppm
2005-06-13<0.01 ppm10< .01 to 0.00868 ppm
2005-06-12<0.01 ppm10< .01 to 0.00868 ppm
2005-06-11<0.01 ppm10< .01 to 0.00824 ppm
2005-06-10<0.01 ppm10< .01 to 0.00843 ppm
2005-06-09<0.01 ppm10< .01 to 0.00771 ppm
2005-06-08<0.01 ppm140< .01 to 0.00763 ppm
2005-06-07<0.01 ppm150< .01 to 0.00937 ppm
2005-06-06<0.01 ppm10< .01 to 0.00981 ppm
2005-06-05<0.01 ppm10< .01 to 0.00858 ppm
2005-06-04<0.01 ppm10< .01 to 0.00723 ppm
2005-06-03<0.01 ppm10< .01 to 0.00861 ppm
2005-06-02<0.01 ppm10< .01 to 0.00729 ppm
2005-06-01<0.01 ppm10< .01 to 0.00729 ppm
2005-05-31<0.01 ppm30< .01 to 0.00887 ppm
2005-05-30<0.01 ppm10< .01 to 0.00826 ppm
2005-05-29<0.01 ppm10< .01 to 0.0078 ppm
2005-05-28<0.01 ppm10< .01 to 0.00793 ppm
2005-05-27<0.01 ppm10< .01 to 0.00826 ppm
2005-05-26<0.01 ppm10< .01 to 0.00785 ppm
2005-05-25<0.01 ppm70< .01 to 0.00783 ppm
2005-05-24<0.01 ppm170< .01 to 0.00958 ppm
2005-05-23<0.01 ppm20< .01 to 0.00892 ppm
2005-05-22<0.01 ppm20< .01 to 0.00714 ppm
2005-05-21<0.01 ppm20< .01 to 0.00719 ppm
2005-05-20<0.01 ppm20< .01 to 0.00713 ppm
2005-05-19<0.01 ppm20< .01 to 0.0077 ppm
2005-05-18<0.01 ppm60< .01 to 0.00858 ppm
2005-05-17<0.01 ppm200< .01 to 0.00971 ppm
2005-05-16<0.01 ppm20< .01 to 0.00982 ppm
2005-05-15<0.01 ppm10< .01 to 0.00628 ppm
2005-05-14<0.01 ppm10< .01 to 0.00634 ppm
2005-05-13<0.01 ppm10< .01 to 0.00671 ppm
2005-05-12<0.01 ppm10< .01 to 0.00597 ppm
2005-05-11<0.01 ppm60< .01 to 0.0069 ppm
2005-05-10<0.01 ppm180< .01 to 0.00882 ppm
2005-05-04<0.01 ppm90< .01 to 0.00751 ppm
2005-05-03<0.01 ppm160< .01 to 0.00963 ppm
2005-04-28<0.01 ppm20< .01 to 0.00385 ppm
2005-04-27<0.01 ppm80< .01 to 0.00765 ppm
2005-04-26<0.01 ppm160< .01 to 0.00731 ppm
2005-04-20<0.01 ppm30< .01 to 0.00794 ppm
2005-04-19<0.01 ppm150< .01 to 0.00968 ppm
2005-04-13<0.01 ppm60< .01 to 0.00824 ppm
2005-04-12<0.01 ppm150< .01 to 0.00988 ppm
2005-04-06<0.01 ppm30< .01 to 0.00616 ppm
2005-04-05<0.01 ppm160< .01 to 0.00995 ppm
2005-03-29<0.01 ppm20< .01 to 0.00983 ppm
2005-03-23<0.01 ppm30< .01 to 0.00656 ppm
2005-03-22<0.01 ppm150<0.01 to 0.01 ppm
2005-03-17<0.01 ppm20< .01 to 0.0083 ppm
2005-03-16<0.01 ppm90< .01 to 0.00711 ppm
2005-03-15<0.01 ppm100< .01 to 0.00984 ppm
2005-03-09<0.01 ppm30< .01 to 0.00687 ppm
2005-03-08<0.01 ppm140< .01 to 0.00977 ppm
2005-03-07<0.01 ppm10< .01 to 0.000722 ppm
2005-03-02<0.01 ppm10< .01 to 0.00638 ppm
2005-03-01<0.01 ppm120< .01 to 0.00856 ppm
2005-02-23<0.01 ppm80< .01 to 0.00517 ppm
2005-02-22<0.01 ppm150< .01 to 0.00627 ppm
2005-02-16<0.01 ppm161< .01 to 0.00727 ppm
2005-02-15<0.01 ppm70< .01 to 0.00719 ppm
2005-02-09<0.01 ppm60< .01 to 0.00713 ppm
2005-02-08<0.01 ppm160< .01 to 0.00797 ppm
2005-02-02<0.01 ppm90< .01 to 0.00718 ppm
2005-02-01<0.01 ppm160< .01 to 0.0084 ppm
2005-01-26<0.01 ppm40< .01 to 0.00779 ppm
2005-01-25<0.01 ppm170<0.01 to 0.01 ppm
2005-01-19<0.01 ppm30< .01 to 0.00734 ppm
2005-01-18<0.01 ppm150< .01 to 0.00964 ppm
2005-01-12<0.01 ppm40< .01 to 0.00738 ppm
2005-01-11<0.01 ppm170< .01 to 0.0066 ppm
2005-01-06<0.01 ppm10< .01 to 0.00479 ppm
2005-01-05<0.01 ppm70< .01 to 0.00684 ppm
2005-01-04<0.01 ppm170< .01 to 0.00701 ppm
2004-12-29<0.01 ppm70< .01 to 0.00624 ppm
2004-12-28<0.01 ppm110< .01 to 0.00685 ppm
2004-12-22<0.01 ppm60< .01 to 0.00766 ppm
2004-12-21<0.01 ppm120< .01 to 0.0074 ppm
2004-12-15<0.01 ppm80< .01 to 0.00632 ppm
2004-12-14<0.01 ppm110< .01 to 0.00498 ppm
2004-12-08<0.01 ppm100< .01 to 0.00769 ppm
2004-12-07<0.01 ppm120< .01 to 0.00729 ppm
2004-11-30<0.01 ppm20< .01 to 0.00829 ppm
2004-11-24<0.01 ppm20< .01 to 0.00634 ppm
2004-11-23<0.01 ppm20< .01 to 0.00732 ppm
2004-11-22<0.01 ppm140< .01 to 0.00759 ppm
2004-11-17<0.01 ppm10< .01 to 0.00537 ppm
2004-11-16<0.01 ppm30< .01 to 0.0074 ppm
2004-11-15<0.01 ppm140< .01 to 0.00763 ppm
2004-11-10<0.01 ppm50< .01 to 0.0062 ppm
2004-11-09<0.01 ppm20< .01 to 0.00381 ppm
2004-11-08<0.01 ppm230< .01 to 0.00777 ppm
2004-11-03<0.01 ppm70< .01 to 0.00756 ppm
2004-11-02<0.01 ppm20< .01 to 0.00399 ppm
2004-11-01<0.01 ppm140< .01 to 0.00689 ppm
2004-10-27<0.01 ppm40< .01 to 0.00672 ppm
2004-10-26<0.01 ppm20< .01 to 0.00882 ppm
2004-10-25<0.01 ppm140< .01 to 0.00778 ppm
2004-10-21<0.01 ppm10< .01 to 0.00656 ppm
2004-10-20<0.01 ppm30< .01 to 0.00773 ppm
2004-10-19<0.01 ppm20< .01 to 0.0088 ppm
2004-10-18<0.01 ppm140< .01 to 0.00757 ppm
2004-10-13<0.01 ppm50< .01 to 0.00643 ppm
2004-10-12<0.01 ppm20< .01 to 0.00794 ppm
2004-10-11<0.01 ppm170< .01 to 0.00605 ppm
2004-10-07<0.01 ppm10< .01 to 0.0028 ppm
2004-10-06<0.01 ppm100< .01 to 0.00614 ppm
2004-10-05<0.01 ppm20< .01 to 0.00803 ppm
2004-10-04<0.01 ppm150< .01 to 0.00666 ppm
2004-09-30<0.01 ppm30< .01 to 0.00778 ppm
2004-09-29<0.01 ppm30< .01 to 0.00592 ppm
2004-09-28<0.01 ppm20< .01 to 0.0043 ppm
2004-09-27<0.01 ppm160< .01 to 0.00706 ppm
2004-09-23<0.01 ppm20< .01 to 0.00818 ppm
2004-09-22<0.01 ppm40< .01 to 0.00617 ppm
2004-09-21<0.01 ppm20< .01 to 0.00536 ppm
2004-09-20<0.01 ppm160< .01 to 0.00701 ppm
2004-09-17<0.01 ppm20< .01 to 0.00452 ppm
2004-09-15<0.01 ppm230< .01 to 0.00704 ppm
2004-09-14<0.01 ppm50< .01 to 0.00576 ppm
2004-09-13<0.01 ppm50< .01 to 0.00768 ppm
2004-09-12<0.01 ppm20< .01 to 0.00432 ppm
2004-09-11<0.01 ppm20< .01 to 0.00786 ppm
2004-09-10<0.01 ppm50< .01 to 0.00647 ppm
2004-09-09<0.01 ppm50< .01 to 0.006 ppm
2004-09-08<0.01 ppm140< .01 to 0.00647 ppm
2004-09-07<0.01 ppm90< .01 to 0.00734 ppm
2004-08-31<0.01 ppm10< .01 to 0.00616 ppm
2004-08-30<0.01 ppm160< .01 to 0.0094 ppm
2004-08-29<0.01 ppm20< .01 to 0.00708 ppm
2004-08-28<0.01 ppm20< .01 to 0.00568 ppm
2004-08-27<0.01 ppm20< .01 to 0.00726 ppm
2004-08-25<0.01 ppm40< .01 to 0.00648 ppm
2004-08-23<0.01 ppm130< .01 to 0.00778 ppm
2004-08-18<0.01 ppm130< .01 to 0.00757 ppm
2004-08-16<0.01 ppm40< .01 to 0.00627 ppm
2004-08-12<0.01 ppm10< .01 to 0.00626 ppm
2004-08-11<0.01 ppm90< .01 to 0.00666 ppm
2004-08-09<0.01 ppm230< .01 to 0.0074 ppm
2004-08-04<0.01 ppm30< .01 to 0.00685 ppm
2004-08-03<0.01 ppm70< .01 to 0.00622 ppm
2004-08-02<0.01 ppm170< .01 to 0.00777 ppm
2004-07-30<0.01 ppm20< .01 to 0.00599 ppm
2004-07-28<0.01 ppm170< .01 to 0.0079 ppm
2004-07-26<0.01 ppm40< .01 to 0.00395 ppm
2004-07-22<0.01 ppm10< .01 to 0.00578 ppm
2004-07-21<0.01 ppm50< .01 to 0.00596 ppm
2004-07-19<0.01 ppm170< .01 to 0.00681 ppm
2004-07-15<0.01 ppm80< .01 to 0.00682 ppm
2004-07-14<0.01 ppm90< .01 to 0.00679 ppm
2004-07-13<0.01 ppm90< .01 to 0.00968 ppm
2004-07-12<0.01 ppm270< .01 to 0.00749 ppm
2004-07-09<0.01 ppm20< .01 to 0.00593 ppm
2004-07-07<0.01 ppm140< .01 to 0.00748 ppm
2004-07-06<0.01 ppm250< .01 to 0.00739 ppm
2004-06-30<0.01 ppm80< .01 to 0.00706 ppm
2004-06-28<0.01 ppm270< .01 to 0.00858 ppm
2004-06-23<0.01 ppm110< .01 to 0.00721 ppm
2004-06-21<0.01 ppm240< .01 to 0.00668 ppm
2004-06-16<0.01 ppm110< .01 to 0.00598 ppm
2004-06-14<0.01 ppm330< .01 to 0.00702 ppm
2004-06-09<0.01 ppm360< .01 to 0.00672 ppm
2004-06-07<0.01 ppm90< .01 to 0.0081 ppm
2004-06-02<0.01 ppm110< .01 to 0.00633 ppm
2004-06-01<0.01 ppm20< .01 to 0.00107 ppm
2004-05-26<0.01 ppm120< .01 to 0.00698 ppm
2004-05-24<0.01 ppm260< .01 to 0.00793 ppm
2004-05-19<0.01 ppm110< .01 to 0.00733 ppm
2004-05-17<0.01 ppm280< .01 to 0.00716 ppm
2004-05-12<0.01 ppm240< .01 to 0.00772 ppm
2004-05-10<0.01 ppm260< .01 to 0.00707 ppm
2004-05-05<0.01 ppm120< .01 to 0.00766 ppm
2004-05-03<0.01 ppm260< .01 to 0.00815 ppm
2004-04-28<0.01 ppm180<0.01 to 0.01 ppm
2004-04-27<0.01 ppm10< .01 to 0.00961 ppm
2004-04-26<0.01 ppm200< .01 to 0.00878 ppm
2004-04-25<0.01 ppm30< .01 to 0.00948 ppm
2004-04-24<0.01 ppm30< .01 to 0.00902 ppm
2004-04-230.01 ppm30<0.01 to 0.01 ppm
2004-04-22<0.01 ppm30< .01 to 0.00961 ppm
2004-04-21<0.01 ppm190<0.01 to 0.01 ppm
2004-04-20<0.01 ppm90< .01 to 0.0088 ppm
2004-04-19<0.01 ppm210<0.01 to 0.01 ppm
2004-04-180.01 ppm100.01 ppm
2004-04-170.01 ppm100.01 ppm
2004-04-16<0.01 ppm10< .01 to 0.00954 ppm
2004-04-15<0.01 ppm10< .01 to 0.00997 ppm
2004-04-14<0.01 ppm140<0.01 to 0.01 ppm
2004-04-13<0.01 ppm10< .01 to 0.00611 ppm
2004-04-12<0.01 ppm280< .01 to 0.00999 ppm
2004-04-11<0.01 ppm10< .01 to 0.00868 ppm
2004-04-100.01 ppm100.01 ppm
2004-04-09<0.01 ppm10< .01 to 0.00854 ppm
2004-04-08<0.01 ppm10< .01 to 0.00749 ppm
2004-04-07<0.01 ppm240< .01 to 0.00679 ppm
2004-04-06<0.01 ppm10< .01 to 0.00326 ppm
2004-04-05<0.01 ppm330< .01 to 0.00967 ppm
2004-04-040.01 ppm100.01 ppm
2004-04-030.01 ppm100.01 ppm
2004-04-02<0.01 ppm10< .01 to 0.0087 ppm
2004-03-31<0.01 ppm140< .01 to 0.00801 ppm
2004-03-29<0.01 ppm250< .01 to 0.00733 ppm
2004-03-24<0.01 ppm120< .01 to 0.00728 ppm
2004-03-23<0.01 ppm10< .01 to 0.00769 ppm
2004-03-22<0.01 ppm290<0.01 to 0.01 ppm
2004-03-17<0.01 ppm130< .01 to 0.0091 ppm
2004-03-15<0.01 ppm230< .01 to 0.00787 ppm
2004-03-10<0.01 ppm140< .01 to 0.00678 ppm
2004-03-08<0.01 ppm380< .01 to 0.00877 ppm
2004-03-05<0.01 ppm10< .01 to 0.00335 ppm
2004-03-03<0.01 ppm100< .01 to 0.00704 ppm
2004-03-02<0.01 ppm10< .01 to 0.00145 ppm
2004-03-01<0.01 ppm310< .01 to 0.00846 ppm
2004-02-26<0.01 ppm30< .01 to 0.00761 ppm
2004-02-25<0.01 ppm130< .01 to 0.00679 ppm
2004-02-24<0.01 ppm100< .01 to 0.00832 ppm
2004-02-23<0.01 ppm120< .01 to 0.00682 ppm
2004-02-18<0.01 ppm90< .01 to 0.00725 ppm
2004-02-17<0.01 ppm290< .01 to 0.00774 ppm
2004-02-11<0.01 ppm200< .01 to 0.00782 ppm
2004-02-09<0.01 ppm370< .01 to 0.00669 ppm
2004-02-03<0.01 ppm190< .01 to 0.00592 ppm
2004-02-02<0.01 ppm220< .01 to 0.00687 ppm
2004-01-28<0.01 ppm70< .01 to 0.00842 ppm
2004-01-26<0.01 ppm280< .01 to 0.00664 ppm
2004-01-21<0.01 ppm140< .01 to 0.00559 ppm
2004-01-20<0.01 ppm210< .01 to 0.00794 ppm
2004-01-14<0.01 ppm200< .01 to 0.00698 ppm
2004-01-12<0.01 ppm230< .01 to 0.00749 ppm
2004-01-08<0.01 ppm60< .01 to 0.00306 ppm
2004-01-07<0.01 ppm190< .01 to 0.0077 ppm
2004-01-05<0.01 ppm250< .01 to 0.00658 ppm