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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Southern Utilities

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

 

157

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0314 ppm2725ND - 0.167 ppm
20150.0452 ppm2624ND - 0.538 ppm
20160.0257 ppm2624ND - 0.150 ppm
20170.0300 ppm2624ND - 0.192 ppm
20180.0296 ppm2625ND - 0.155 ppm
20190.0264 ppm26260.0103 ppm - 0.151 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2014-06-12Q14211200040.114 ppm
2014-06-30Q14244770040.0300 ppm
2014-06-30Q14244770090.0295 ppm
2014-06-30Q14244770100.0390 ppm
2014-06-30Q14244770110.0295 ppm
2014-06-30Q1424477012ND
2014-06-30Q14244770130.0150 ppm
2014-08-14Q14364660080.0120 ppm
2014-08-14Q1436466014ND
2014-08-14Q14364660160.0170 ppm
2014-08-14Q14364660180.0225 ppm
2014-08-14Q14364660200.0285 ppm
2014-08-26Q14395380290.0155 ppm
2014-08-26Q14395380300.0185 ppm
2014-08-26Q14395380310.0270 ppm
2014-08-26Q14395380320.0235 ppm
2014-08-26Q14395380330.167 ppm
2014-08-26Q14395380340.0235 ppm
2014-10-02Q14505440030.0385 ppm
2014-10-02Q14505440060.0225 ppm
2014-10-02Q14505440070.0360 ppm
2014-10-02Q14505440080.0305 ppm
2014-10-02Q14505440360.01000 ppm
2014-10-02Q14505440370.0150 ppm
2014-12-03Q14583230020.0485 ppm
2014-12-03Q14583230060.0135 ppm
2014-12-03Q14583230070.0215 ppm
2015-01-22Q1502328023ND
2015-01-22Q15023280240.0270 ppm
2015-01-22Q15023280250.0205 ppm
2015-01-22Q15023280260.0390 ppm
2015-01-22Q15023280270.0430 ppm
2015-01-22Q15023280280.0225 ppm
2015-01-22Q15023280290.0255 ppm
2015-03-16Q15096390020.0195 ppm
2015-04-02Q15122600330.0140 ppm
2015-04-02Q15122600340.0210 ppm
2015-04-02Q15122600350.0215 ppm
2015-04-02Q15122600360.0220 ppm
2015-04-02Q15122600370.0165 ppm
2015-04-02Q15122600380.158 ppm
2015-04-02Q15122600390.0145 ppm
2015-04-02Q15122600400.0135 ppm
2015-04-02Q15122600410.0225 ppm
2015-04-02Q15122600420.0300 ppm
2015-04-02Q1512260045ND
2015-04-30Q15159790230.0165 ppm
2015-04-30Q15159790240.0105 ppm
2015-04-30Q15159790250.0130 ppm
2015-04-30Q15159790260.0225 ppm
2015-04-30Q15159790270.538 ppm
2015-04-30Q15159790280.0205 ppm
2015-04-30Q15159790290.0240 ppm
2016-01-07Q16004750010.0180 ppm
2016-01-07Q16004750020.0265 ppm
2016-01-07Q16004750030.0320 ppm
2016-01-07Q16004750040.0345 ppm
2016-04-07Q16138190210.0240 ppm
2016-04-07Q1613819023ND
2016-04-07Q16138190240.0155 ppm
2016-04-07Q16138190250.0155 ppm
2016-04-07Q16138190260.0235 ppm
2016-04-07Q16138190270.150 ppm
2016-04-07Q16138190280.0245 ppm
2016-04-07Q16138190290.0205 ppm
2016-06-15Q16242520030.0185 ppm
2016-10-06Q16424890230.0250 ppm
2016-10-06Q16424890240.0225 ppm
2016-10-06Q16424890250.0180 ppm
2016-10-06Q16424890260.0235 ppm
2016-10-06Q16424890270.0190 ppm
2016-10-06Q16424890280.0255 ppm
2016-10-06Q16424890290.0110 ppm
2016-10-06Q16424890300.0290 ppm
2016-10-06Q16424890310.0400 ppm
2016-10-06Q16424890390.0110 ppm
2016-10-06Q1642489040ND
2016-10-27Q16460140070.0195 ppm
2016-10-27Q16460140080.0210 ppm
2017-01-04Q17003690280.0219 ppm
2017-01-04Q17003690080.0260 ppm
2017-01-04Q17003690290.0123 ppm
2017-04-11Q17148040170.0111 ppm
2017-04-11Q17148040180.0208 ppm
2017-04-11Q17148040190.0236 ppm
2017-04-11Q17148040200.0245 ppm
2017-06-14Q1724888001ND
2017-07-10Q17278740070.0235 ppm
2017-08-15Q17357570120.192 ppm
2017-08-15Q17357570130.0169 ppm
2017-08-15Q17357570140.0200 ppm
2017-08-15Q1735757015ND
2017-08-15Q17357570470.0389 ppm
2017-08-15Q17357570360.0120 ppm
2017-09-13Q17434250160.0343 ppm
2017-09-13Q17434250170.0213 ppm
2017-09-13Q17434250180.0276 ppm
2017-09-13Q17434250190.0413 ppm
2017-09-13Q17434250480.0225 ppm
2017-09-13Q17434250490.0344 ppm
2017-10-17Q17535640270.0331 ppm
2017-10-17Q17535640050.0290 ppm
2017-10-17Q17535640410.0234 ppm
2017-10-17Q17535640470.0412 ppm
2017-10-17Q17535640440.0274 ppm
2018-02-05Q18043750050.0353 ppm
2018-03-01Q18087660240.0107 ppm
2018-03-01Q1808766026ND
2018-03-01Q18087660420.0231 ppm
2018-03-01Q18087660160.0157 ppm
2018-03-01Q18087660430.0258 ppm
2018-03-01Q18087660170.0149 ppm
2018-03-01Q18087660440.0176 ppm
2018-03-01Q18087660270.0105 ppm
2018-03-01Q18087660180.0128 ppm
2018-03-01Q18087660450.0195 ppm
2018-03-01Q18087660190.0180 ppm
2018-08-07Q18312110100.0306 ppm
2018-08-07Q18312110110.0192 ppm
2018-08-07Q18312110120.0484 ppm
2018-08-07Q18312110130.0297 ppm
2018-08-07Q18312110140.0229 ppm
2018-08-07Q18312110160.155 ppm
2018-08-07Q18312110170.0387 ppm
2018-08-07Q18312110180.0132 ppm
2018-10-31Q18437630020.0234 ppm
2018-10-31Q18437630170.0335 ppm
2018-10-31Q18437630030.0261 ppm
2018-10-31Q18437630180.0632 ppm
2018-10-31Q18437630190.0280 ppm
2018-10-31Q18437630040.0341 ppm
2019-02-21Q19076600010.0110 ppm
2019-02-21Q19076600100.0174 ppm
2019-02-21Q19076600110.0166 ppm
2019-02-21Q19076600120.0251 ppm
2019-02-21Q19076600130.0243 ppm
2019-02-21Q19076600140.0103 ppm
2019-02-21Q19076600150.0131 ppm
2019-02-21Q19076600160.0211 ppm
2019-02-21Q19076600170.0203 ppm
2019-02-21Q19076600220.0166 ppm
2019-03-26Q19121750220.0212 ppm
2019-03-26Q19121750230.0382 ppm
2019-03-26Q19121750240.0300 ppm
2019-03-26Q19121750250.151 ppm
2019-03-26Q19121750260.0169 ppm
2019-03-26Q19121750270.0178 ppm
2019-03-26Q19121750280.0402 ppm
2019-08-08Q19525850330.0230 ppm
2019-08-08Q19525850340.0227 ppm
2019-08-08Q19525850110.0212 ppm
2019-08-08Q19525850120.0266 ppm
2019-08-08Q19525850130.0232 ppm
2019-08-08Q19525850140.0172 ppm
2019-08-08Q19525850350.0138 ppm
2019-08-08Q19525850360.0275 ppm
2019-08-08Q19525850010.0194 ppm