The Power of Information

National Drinking Water Database


Puddledock Road Utilities - Prince George, VA


Serves 6,525 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
33 days
Tests ConductedNumber of individual tests done for this contaminant
102 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.282.52 ppb
674 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
2009-04-06186.67 ppb30126 to 246 ppb
2009-01-08228 ppb30170 to 280 ppb
2008-10-06196 ppb30168 to 233 ppb
2008-07-0242.8 ppb3020.1 to 55.6 ppb
2008-04-03188.67 ppb30155 to 226 ppb
2008-01-07336 ppb30206 to 570 ppb
2006-10-06258.33 ppb30145 to 326 ppb
2006-07-0665.23 ppb3016.8 to 100 ppb
2006-04-0398.2 ppb3083.6 to 108 ppb
2006-01-03518 ppb20311 to 725 ppb
2005-12-08296.33 ppb30139 to 418 ppb
2005-11-22323.33 ppb30211 to 398 ppb
2005-10-07219.57 ppb3083.7 to 335 ppb
2005-09-06209.67 ppb30135 to 258 ppb
2005-08-09226.67 ppb30121 to 288 ppb
2005-07-14468.27 ppb3097.8 to 679 ppb
2005-06-20192.03 ppb3094.1 to 247 ppb
2005-05-19181.67 ppb30131 to 245 ppb
2005-04-06244.33 ppb30178 to 317 ppb
2005-03-08277 ppb30200 to 358 ppb
2005-02-09360 ppb30267 to 488 ppb
2005-01-28379 ppb30257 to 590 ppb
2005-01-03674 ppb10674 ppb
2004-12-07444 ppb30288 to 681 ppb
2004-11-02358.67 ppb30256 to 558 ppb
2004-10-15326.33 ppb30247 to 417 ppb
2004-09-17318 ppb30194 to 384 ppb
2004-08-17383.33 ppb30206 to 492 ppb
2004-07-29317.9 ppb3092.7 to 476 ppb
2004-06-22272.63 ppb3044.9 to 558 ppb
2004-05-17145.93 ppb3094.8 to 178 ppb
2004-04-28185.9 ppb3089.7 to 258 ppb
2004-02-17400.78 ppb90274 to 596 ppb