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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Rockford

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.

 

151

Samples

0

Samples exceeding legal limit (MCL)

51

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.417 ppm2517ND - 3.60 ppm
20130.390 ppm2818ND - 4.10 ppm
20140.674 ppm2213ND - 4.40 ppm
20150.521 ppm2812ND - 4.10 ppm
20160.592 ppm2617ND - 4.30 ppm
20170.621 ppm229ND - 4.10 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
2012-04-252043207-010.490 ppm
2012-04-252043207-030.0300 ppm
2012-04-252043207-040.0500 ppm
2012-04-252043207-050.0200 ppm
2012-04-252043207-060.0200 ppm
2012-05-152052166-010.150 ppm
2012-05-152052166-02ND
2012-05-152052166-05ND
2012-05-152052166-041.80 ppm
2012-05-152052166-06ND
2012-05-152052166-07ND
2012-05-152052166-08ND
2012-05-162052166-030.0800 ppm
2012-05-292053481-020.0300 ppm
2012-05-292053481-030.0300 ppm
2012-06-202062941-01ND
2012-06-202062941-020.0200 ppm
2012-06-202062941-05ND
2012-06-212062941-033.60 ppm
2012-06-212062941-04ND
2012-06-272063553-010.430 ppm
2012-07-172072461-011.60 ppm
2012-10-242103457-021.90 ppm
2012-10-242103457-040.0200 ppm
2012-10-242103457-060.150 ppm
2013-03-123031609-010.0200 ppm
2013-05-213052934-01ND
2013-05-213052934-020.280 ppm
2013-05-213052934-031.80 ppm
2013-05-213052934-044.10 ppm
2013-05-213052934-05ND
2013-05-213052934-06ND
2013-05-213052934-07ND
2013-05-213052934-08ND
2013-06-243063688-02ND
2013-06-243063688-03ND
2013-06-243063688-04ND
2013-06-253063688-010.0700 ppm
2013-06-283063989-01ND
2013-08-283084147-011.80 ppm
2013-10-303104028-030.330 ppm
2013-10-303104028-040.0300 ppm
2013-10-303104028-010.0300 ppm
2013-10-303104028-020.0600 ppm
2013-11-133111834-030.200 ppm
2013-11-133111834-04ND
2013-11-133111834-050.0200 ppm
2013-11-133111834-020.200 ppm
2013-11-203112716-010.0400 ppm
2013-11-203112722-010.0400 ppm
2013-11-203112716-020.0400 ppm
2013-12-113121606-010.0500 ppm
2013-12-113121606-021.80 ppm
2014-04-164042724-010.0600 ppm
2014-04-164042724-021.80 ppm
2014-04-294044301-030.0400 ppm
2014-04-304044301-010.260 ppm
2014-04-304044301-024.40 ppm
2014-04-304044301-04ND
2014-04-304044301-05ND
2014-05-144052114-01ND
2014-05-144052114-020.0400 ppm
2014-05-144052114-03ND
2014-07-304074473-011.90 ppm
2014-11-194112673-010.330 ppm
2014-11-194112673-02ND
2014-11-194112673-03ND
2014-11-194112673-043.70 ppm
2014-11-194112673-050.0300 ppm
2014-12-034120551-01ND
2014-12-104121748-011.90 ppm
2014-12-104121748-02ND
2014-12-174122805-02ND
2014-12-314123869-020.170 ppm
2014-12-314123869-010.190 ppm
2015-01-285013651-01ND
2015-01-285013651-02ND
2015-02-115021699-01ND
2015-04-085041271-020.0400 ppm
2015-04-225043414-010.290 ppm
2015-04-225043414-021.50 ppm
2015-04-225043414-034.10 ppm
2015-05-135051942-011.90 ppm
2015-05-135051942-05ND
2015-05-135051942-06ND
2015-05-205053045-01ND
2015-05-275053787-01ND
2015-05-275053787-02ND
2015-06-035060644-01ND
2015-06-105061807-01ND
2015-07-225073712-012.60 ppm
2015-10-215103178-010.240 ppm
2015-10-215103178-020.310 ppm
2015-10-215103178-06ND
2015-10-215103178-030.0600 ppm
2015-10-215103178-043.30 ppm
2015-10-215103178-050.220 ppm
2015-10-285104119-03ND
2015-10-285104119-01ND
2015-11-045110645-01ND
2015-11-045110645-02ND
2015-11-045110645-03ND
2015-12-095121573-010.0400 ppm
2016-04-206043262-010.0500 ppm
2016-04-206043262-020.370 ppm
2016-04-206043262-034.30 ppm
2016-04-206043262-040.0500 ppm
2016-04-276044108-01ND
2016-04-276044108-020.0500 ppm
2016-04-276044108-03ND
2016-04-276044108-04ND
2016-04-276044108-05ND
2016-05-116051794-010.0900 ppm
2016-05-116051794-021.60 ppm
2016-06-086061378-010.0300 ppm
2016-07-276074414-011.90 ppm
2016-07-276074413-012.80 ppm
2016-07-276074414-020.0300 ppm
2016-10-266104047-010.290 ppm
2016-10-266104047-020.0300 ppm
2016-10-266104047-030.0200 ppm
2016-11-096111726-01ND
2016-11-096111726-02ND
2016-11-166112706-050.220 ppm
2016-11-166112706-01ND
2016-11-166112706-02ND
2016-11-166112706-033.30 ppm
2016-11-166112706-040.250 ppm
2016-12-076121136-01ND
2017-06-147062746-011.60 ppm
2017-06-147062746-020.0500 ppm
2017-06-147062746-03ND
2017-06-147062746-040.210 ppm
2017-06-147062746-051.50 ppm
2017-06-147062746-064.10 ppm
2017-06-217063899-01ND
2017-06-217063899-02ND
2017-06-217063899-03ND
2017-06-217063899-04ND
2017-06-217063899-05ND
2017-06-217063899-06ND
2017-07-267075066-012.40 ppm
2017-08-027080621-01ND
2017-11-157112878-010.340 ppm
2017-11-157112878-02ND
2017-11-157112878-03ND
2017-11-157112878-04ND
2017-11-157112878-053.20 ppm
2017-11-157112878-06ND
2017-11-157112878-070.270 ppm
2017-12-067121184-05ND