The Power of Information

National Drinking Water Database

Charlotte-Mecklenburg Utilities Utilities - Charlotte, NC

Serves 761,830 people


Dicamba is an herbicide applied in agriculture, rangeland, pasture and industry; it is used for corn, wheat and other crops.
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
27 days
Tests ConductedNumber of individual tests done for this contaminant
86 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
DicambaDicamba is an herbicide applied in agriculture, rangeland, pasture and industry; it is used for corn, wheat and other crops.0 ppb
0 ppb
3000 ppb
Legal 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 Dicamba

Health Based Limits for Dicamba

Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.3000 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.4000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.18000 ppb

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2008-08-200 ppb550 ppb
2008-02-040 ppb440 ppb
2007-12-060 ppb550 ppb
2007-08-150 ppb550 ppb
2007-05-020 ppb660 ppb
2007-02-150 ppb550 ppb
2006-11-080 ppb550 ppb
2006-08-090 ppb550 ppb
2006-05-110 ppb550 ppb
2006-02-160 ppb110 ppb
2006-02-150 ppb330 ppb
2005-11-300 ppb440 ppb
2005-11-290 ppb330 ppb
2005-09-140 ppb220 ppb
2005-09-080 ppb330 ppb
2005-06-070 ppb220 ppb
2005-06-010 ppb330 ppb
2005-03-220 ppb220 ppb
2005-03-100 ppb220 ppb
2005-03-090 ppb110 ppb
2004-08-190 ppb110 ppb
2004-08-180 ppb220 ppb
2004-08-170 ppb220 ppb
2004-05-060 ppb440 ppb
2004-05-050 ppb110 ppb
2004-02-120 ppb220 ppb
2004-02-090 ppb330 ppb