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National Drinking Water Database


Nitrite in Alabama


Nitrite is a chemical that enters water from fertilizer runoff, leaching septic tanks, and erosion of natural deposits.

The Most Polluted Communities in Alabama

10 water utilities reported detecting Nitrite in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Nitrite level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Uniontown Utilities Board
Uniontown, AL
3,8941 of 20.09 ppm
(0 to 0.17 ppm)
2Slocomb Water Works and Sewer Board
Slocomb, AL
3,6181 of 10.09 ppm
(0.09 ppm)
3Town of Silverhill Water System
Silverhill, AL
1,5721 of 10.01 ppm
(0.01 ppm)
4Florala Water Works & Sewer Board
Florala, AL
3,2912 of 20.01 ppm
(0.01 ppm)
5Goodwater Utilities Board
Goodwater, AL
2,3701 of 10.01 ppm
(0.01 ppm)
6Auburn Water Works
Auburn, AL
51,0001 of 2<0.01 ppm
(0 to 0.01 ppm)
7Central Elmore Water Authority
Wetumpka, AL
29,8201 of 2<0.01 ppm
(0 to 0.01 ppm)
8Talladega-Shelby Water Treatment Plant
Alpine, AL
251 of 2<0.01 ppm
(0 to 0.01 ppm)
9Five Star Water Supply District
Auburn, AL
1001 of 2<0.01 ppm
(0 to 0.01 ppm)
10Montgomery Water Works
Montgomery, AL
237,3901 of 7<0.01 ppm
(< .01 to 0.007625 ppm)

Health Based Limits for 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.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

Violation Summary for Nitrite in Alabama

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Alabama since 2004

Violation TypeNumber of Violations
Failure to monitor regularly17