The Power of Information

National Drinking Water Database


Goldston-Gulf Sanitary Dist Utilities - Bear Creek, NC


Serves 1,443 people

Chlorite

Chlorite is a disinfection byproduct resulting from water treatment with chlorine dioxide, or from the use of chlorine dioxide as a bleaching agent for cellulose, paper pulp, flour and oils.
 
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
24 days
Tests ConductedNumber of individual tests done for this contaminant
70 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
ChloriteChlorite is a disinfection byproduct resulting from water treatment with chlorine dioxide, or from the use of chlorine dioxide as a bleaching agent for cellulose, paper pulp, flour and oils.518.97 ppb
780 ppb
No
800 ppb
No
1000 ppb
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 Chlorite

Health Based Limits for Chlorite

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.800 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.800 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.840 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.840 ppb
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.1000 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.1000 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2005-12-14580 ppb20560 to 600 ppb
2005-12-07460 ppb20460 ppb
2005-11-23555 ppb20550 to 560 ppb
2005-10-12442 ppb50390 to 470 ppb
2005-09-28460 ppb30420 to 500 ppb
2005-08-01726.67 ppb30670 to 760 ppb
2005-07-06670 ppb30600 to 730 ppb
2005-06-20583.33 ppb30570 to 610 ppb
2005-05-09640 ppb30440 to 760 ppb
2005-04-11453.33 ppb30380 to 510 ppb
2005-03-14246.67 ppb30230 to 260 ppb
2005-02-01593.33 ppb30550 to 640 ppb
2005-01-10640 ppb30610 to 690 ppb
2004-12-15550 ppb30400 to 700 ppb
2004-11-22596.67 ppb30480 to 660 ppb
2004-10-04350 ppb30330 to 370 ppb
2004-09-08273.33 ppb30150 to 350 ppb
2004-08-16405 ppb20390 to 420 ppb
2004-07-20630 ppb30610 to 640 ppb
2004-06-15780 ppb30760 to 820 ppb
2004-05-18500 ppb30360 to 760 ppb
2004-04-13570 ppb30540 to 620 ppb
2004-03-17566.67 ppb30540 to 580 ppb
2004-02-11183.33 ppb30160 to 220 ppb