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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Sun Valley Gid

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for nitrate and nitrite. Sample information shown below was taken by Truckee Meadows Water Authority.

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

108

Samples

0

Samples exceeding legal limit (MCL)

53

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.570 ppm94ND - 2.03 ppm
20130.939 ppm2615ND - 7.80 ppm
20140.793 ppm159ND - 3.50 ppm
20150.443 ppm94ND - 1.70 ppm
20160.425 ppm227ND - 2.24 ppm
20170.105 ppm2718ND - 2.78 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for nitrate and nitrite. Sample information shown below was taken by Truckee Meadows Water Authority.

Date Lab ID Result
2012-04-020412-01I2.03 ppm
2012-04-110412-06I0.890 ppm
2012-05-160512-36I0.560 ppm
2012-05-160512-35IND
2012-06-060612-09IND
2012-06-190612-26IND
2012-06-190612-27I1.65 ppm
2012-06-260612-32IND
2012-06-260612-33IND
2013-05-070513-12-IND
2013-05-070513-09-IND
2013-05-070513-13-IND
2013-05-080513-16-IOC1.10 ppm
2013-05-080513-17I0.120 ppm
2013-05-080513-19I1.20 ppm
2013-05-080513-180.1000 ppm
2013-06-180613-20-IOCND
2013-06-180513-17-IOC0.120 ppm
2013-06-190613-230.515 ppm
2013-06-190613-280.472 ppm
2013-06-190613-220.950 ppm
2013-06-190613-262.90 ppm
2013-06-190613-21-I-13.00 ppm
2013-06-190613-252.85 ppm
2013-06-190613-25-IND
2013-06-240613-561.98 ppm
2013-06-240613-56-IND
2013-06-250613-700.940 ppm
2013-06-250613-70-IND
2013-06-250613-69ND
2013-06-250613-54ND
2013-06-250613-68ND
2013-06-250613-68-IND
2013-06-270613-730.360 ppm
2013-07-230713-14-IOC7.80 ppm
2014-04-220414-14I1.40 ppm
2014-04-220414-12-I1.10 ppm
2014-04-230414-17-IND
2014-04-230414-16-IND
2014-05-170614-13-IND
2014-06-090614-06-IND
2014-06-090614-07-IND
2014-06-170614-11-I0.300 ppm
2014-06-170614-10-I0.600 ppm
2014-06-170614-09-I0.500 ppm
2014-06-170614-12-I2.50 ppm
2014-06-170614-13-NND
2014-06-170514-14-I0.500 ppm
2014-06-240614-28-I1.50 ppm
2014-06-240614-26-I3.50 ppm
2015-06-081506017-01ND
2015-06-081506018-01ND
2015-06-111506027-010.868 ppm
2015-06-171506035-011.01 ppm
2015-06-171506036-01ND
2015-06-171506037-01ND
2015-06-171506038-01ND
2015-06-231506055-011.70 ppm
2015-06-231506061-010.406 ppm
2016-05-311605028-01ND
2016-05-311605025-01ND
2016-05-311605026-01ND
2016-05-311605027-01ND
2016-06-011606001-01ND
2016-06-061606010-011.30 ppm
2016-06-281606059-01ND
2016-06-281606052-01ND
2016-07-191607023-010.990 ppm
2016-07-191607024-01ND
2016-07-191607025-01ND
2016-08-041608010-010.980 ppm
2016-08-041608011-011.43 ppm
2016-08-041608012-01ND
2016-08-151608022-010.860 ppm
2016-08-151608023-012.24 ppm
2016-08-241608035-011.56 ppm
2016-08-241608034-01ND
2016-08-241608033-01ND
2016-08-241608037-01ND
2016-08-251608036-01ND
2016-08-251608039-01ND
2017-02-071702004-010.780 ppm
2017-03-081703009-010.880 ppm
2017-03-081703008-011.000 ppm
2017-05-021705003-01ND
2017-05-021705004-01ND
2017-05-021705005-01ND
2017-05-151705023-01ND
2017-05-151705025-01ND
2017-05-151705024-01ND
2017-05-251705041-01ND
2017-06-010.105 ppm*
2017-06-141706017-010.970 ppm
2017-07-111707003-011.79 ppm
2017-07-111707002-012.78 ppm
2017-07-111707005-010.910 ppm
2017-07-111707004-012.12 ppm
2017-07-181707020-011.49 ppm
2017-07-181707021-010.810 ppm
2017-07-181707022-01ND
2017-07-181707024-011.75 ppm
2017-08-161708013-011.50 ppm
2017-08-161708014-010.880 ppm
2017-08-291708026-011.35 ppm
2017-08-291708027-010.750 ppm
2017-08-291708029-012.46 ppm
2017-08-291708030-01ND
2017-08-291708025-010.980 ppm

* Sample result is taken from the system's CCR report.