The Power of Information

National Drinking Water Database

City of Riverside Public Utilities Utilities - Riverside, CA

Serves 280,832 people


Nitrite is a chemical that enters water from fertilizer runoff, leaching 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
190 days
Tests ConductedNumber of individual tests done for this contaminant
192 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
NitriteNitrite is a chemical that enters water from fertilizer runoff, leaching septic tanks, and erosion of natural deposits.0 ppm
0 ppm
1 ppm
1 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 Nitrite

Health Based Limits for Nitrite

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.1 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.1 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.1 ppm
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.1 ppm
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.1 ppm

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2009-07-070 ppm110 ppm
2008-09-090 ppm110 ppm
2008-08-190 ppm110 ppm
2008-08-120 ppm110 ppm
2008-07-290 ppm110 ppm
2008-07-220 ppm110 ppm
2008-07-150 ppm110 ppm
2008-07-080 ppm110 ppm
2008-07-070 ppm110 ppm
2008-07-010 ppm110 ppm
2008-06-240 ppm110 ppm
2008-06-200 ppm110 ppm
2008-06-170 ppm110 ppm
2008-06-100 ppm220 ppm
2008-06-030 ppm110 ppm
2008-05-270 ppm110 ppm
2008-05-200 ppm110 ppm
2008-05-130 ppm110 ppm
2008-05-060 ppm110 ppm
2008-04-290 ppm110 ppm
2008-04-220 ppm110 ppm
2008-04-150 ppm110 ppm
2008-04-100 ppm110 ppm
2008-04-080 ppm110 ppm
2008-04-010 ppm110 ppm
2008-03-310 ppm110 ppm
2008-03-250 ppm110 ppm
2008-03-180 ppm110 ppm
2008-03-110 ppm110 ppm
2008-03-040 ppm110 ppm
2008-02-260 ppm110 ppm
2008-02-190 ppm110 ppm
2008-02-120 ppm110 ppm
2008-02-050 ppm110 ppm
2008-01-290 ppm110 ppm
2008-01-220 ppm110 ppm
2008-01-150 ppm110 ppm
2008-01-080 ppm110 ppm
2008-01-020 ppm110 ppm
2007-12-260 ppm110 ppm
2007-12-180 ppm110 ppm
2007-11-060 ppm110 ppm
2007-10-300 ppm110 ppm
2007-10-230 ppm220 ppm
2007-10-160 ppm110 ppm
2007-10-090 ppm110 ppm
2007-10-020 ppm110 ppm
2007-09-250 ppm110 ppm
2007-09-180 ppm110 ppm
2007-09-110 ppm110 ppm
2007-09-040 ppm110 ppm
2007-08-280 ppm110 ppm
2007-08-210 ppm110 ppm
2007-08-140 ppm110 ppm
2007-08-070 ppm110 ppm
2007-07-310 ppm110 ppm
2007-07-240 ppm110 ppm
2007-07-170 ppm110 ppm
2007-07-100 ppm110 ppm
2007-06-260 ppm110 ppm
2007-06-190 ppm110 ppm
2007-06-120 ppm110 ppm
2007-06-050 ppm110 ppm
2007-05-290 ppm110 ppm
2007-05-220 ppm110 ppm
2007-05-150 ppm110 ppm
2007-05-080 ppm110 ppm
2007-05-010 ppm110 ppm
2007-04-240 ppm110 ppm
2007-04-170 ppm110 ppm
2007-04-100 ppm110 ppm
2007-04-030 ppm110 ppm
2007-03-270 ppm110 ppm
2007-03-200 ppm110 ppm
2007-03-130 ppm110 ppm
2007-03-060 ppm110 ppm
2007-02-270 ppm110 ppm
2007-02-200 ppm110 ppm
2007-02-130 ppm110 ppm
2007-02-060 ppm110 ppm
2007-01-300 ppm110 ppm
2007-01-230 ppm110 ppm
2007-01-160 ppm110 ppm
2007-01-090 ppm110 ppm
2007-01-020 ppm110 ppm
2006-12-290 ppm110 ppm
2006-12-260 ppm110 ppm
2006-12-190 ppm110 ppm
2006-12-120 ppm110 ppm
2006-12-050 ppm110 ppm
2006-11-280 ppm110 ppm
2006-11-210 ppm110 ppm
2006-11-140 ppm110 ppm
2006-11-070 ppm110 ppm
2006-10-310 ppm110 ppm
2006-10-240 ppm110 ppm
2006-10-170 ppm110 ppm
2006-10-100 ppm110 ppm
2006-10-030 ppm110 ppm
2006-09-260 ppm110 ppm
2006-09-190 ppm110 ppm
2006-09-120 ppm110 ppm
2006-09-050 ppm110 ppm
2006-08-290 ppm110 ppm
2006-08-220 ppm110 ppm
2006-08-150 ppm110 ppm
2006-08-080 ppm110 ppm
2006-08-010 ppm110 ppm
2006-07-250 ppm110 ppm
2006-07-180 ppm110 ppm
2006-07-130 ppm110 ppm
2006-07-110 ppm110 ppm
2006-07-040 ppm110 ppm
2006-06-270 ppm110 ppm
2006-06-200 ppm110 ppm
2006-06-130 ppm110 ppm
2006-06-060 ppm110 ppm
2006-05-300 ppm110 ppm
2006-05-230 ppm110 ppm
2006-05-160 ppm110 ppm
2006-05-090 ppm110 ppm
2006-05-020 ppm110 ppm
2006-04-250 ppm110 ppm
2006-04-180 ppm110 ppm
2006-04-110 ppm110 ppm
2006-04-040 ppm110 ppm
2006-03-280 ppm110 ppm
2006-03-210 ppm110 ppm
2006-03-140 ppm110 ppm
2006-03-070 ppm110 ppm
2006-02-280 ppm110 ppm
2006-02-210 ppm110 ppm
2006-02-140 ppm110 ppm
2006-02-070 ppm110 ppm
2006-01-310 ppm110 ppm
2006-01-240 ppm110 ppm
2006-01-170 ppm110 ppm
2006-01-100 ppm110 ppm
2006-01-030 ppm110 ppm
2005-12-270 ppm110 ppm
2005-12-200 ppm110 ppm
2005-12-130 ppm110 ppm
2005-12-060 ppm110 ppm
2005-11-290 ppm110 ppm
2005-11-220 ppm110 ppm
2005-11-150 ppm110 ppm
2005-11-080 ppm110 ppm
2005-11-010 ppm110 ppm
2005-10-250 ppm110 ppm
2005-10-180 ppm110 ppm
2005-10-110 ppm110 ppm
2005-10-040 ppm110 ppm
2005-09-270 ppm110 ppm
2005-09-200 ppm110 ppm
2005-09-130 ppm110 ppm
2005-09-060 ppm110 ppm
2005-08-300 ppm110 ppm
2005-08-230 ppm110 ppm
2005-08-160 ppm110 ppm
2005-08-090 ppm110 ppm
2005-08-020 ppm110 ppm
2005-07-260 ppm110 ppm
2005-07-190 ppm110 ppm
2005-07-120 ppm110 ppm
2005-07-050 ppm110 ppm
2005-06-280 ppm110 ppm
2005-06-210 ppm110 ppm
2005-06-140 ppm110 ppm
2005-06-070 ppm110 ppm
2005-05-310 ppm110 ppm
2005-05-240 ppm110 ppm
2005-05-170 ppm110 ppm
2005-05-100 ppm110 ppm
2005-05-030 ppm110 ppm
2005-04-260 ppm110 ppm
2005-04-190 ppm110 ppm
2005-04-120 ppm110 ppm
2005-04-050 ppm110 ppm
2005-03-290 ppm110 ppm
2005-03-010 ppm110 ppm
2005-02-160 ppm110 ppm
2004-08-270 ppm110 ppm
2004-08-240 ppm110 ppm
2004-08-170 ppm110 ppm
2004-08-100 ppm110 ppm
2004-08-030 ppm110 ppm
2004-07-270 ppm110 ppm
2004-07-200 ppm110 ppm
2004-07-140 ppm110 ppm
2004-06-300 ppm110 ppm