Know Your Environment. Protect Your Health.

Nitrate

Panora Water Works

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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.59 ppm12121.80 ppm - 5.30 ppm
20193.95 ppm12121.70 ppm - 5.90 ppm
20202.37 ppm1211ND - 4.70 ppm
20210.597 ppm128ND - 1.80 ppm
20221.87 ppm1211ND - 6.90 ppm
20230.493 ppm1210ND - 1.10 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG 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

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
2018-01-08OE6080512.00 ppm
2018-02-06OE6190082.60 ppm
2018-03-05OE6294251.80 ppm
2018-04-09OE6428232.40 ppm
2018-05-07OE6541904.20 ppm
2018-06-04OE6652163.70 ppm
2018-07-09OE6799925.30 ppm
2018-08-08OE6955424.10 ppm
2018-09-05OE7087333.80 ppm
2018-10-09OE7244814.50 ppm
2018-11-12OE7387594.30 ppm
2018-12-05OE7468704.40 ppm
2019-01-07OE7568695.00 ppm
2019-02-04OE7667344.60 ppm
2019-03-04OE7767374.00 ppm
2019-04-03OE7892112.00 ppm
2019-05-06OE8036283.10 ppm
2019-06-04OE8160235.30 ppm
2019-07-15OE8344265.90 ppm
2019-08-05OE8445884.30 ppm
2019-09-04OE8601091.70 ppm
2019-10-08OE8762013.40 ppm
2019-11-04OE8885634.30 ppm
2019-12-03OE9004303.80 ppm
2020-01-07OE9131884.10 ppm
2020-02-04OE9241614.50 ppm
2020-03-10OE9389653.20 ppm
2020-04-07OE9540334.70 ppm
2020-05-04OE9922653.70 ppm
2020-06-02OE10298213.40 ppm
2020-07-08OE10979822.70 ppm
2020-08-04OE11566311.30 ppm
2020-09-14OE12537400.320 ppm
2020-10-05OE1312705ND
2020-11-02OE13839210.270 ppm
2020-12-01OE14638420.280 ppm
2021-01-07OE15316000.430 ppm
2021-02-09OE15818420.650 ppm
2021-03-01OE16076270.660 ppm
2021-04-05OE16484011.60 ppm
2021-05-04OE16835131.80 ppm
2021-06-02OE17153641.20 ppm
2021-07-07OE17496550.330 ppm
2021-08-03OE1779553ND
2021-09-14OE1845012ND
2021-10-04OE1875167ND
2021-11-02OE1915716ND
2021-12-08OE19615880.490 ppm
2022-01-04OE19946520.430 ppm
2022-02-07OE20375230.540 ppm
2022-03-09OE20616390.590 ppm
2022-04-04OE20754900.680 ppm
2022-05-03OE20921381.50 ppm
2022-06-07OE21120076.90 ppm
2022-07-05OE21280395.70 ppm
2022-08-03OE21474033.50 ppm
2022-09-06OE21675641.70 ppm
2022-10-05OE2185902ND
2022-11-01OE21988230.630 ppm
2022-12-01OE22119970.300 ppm
2023-01-04OE22251430.340 ppm
2023-02-07OE22387540.460 ppm
2023-03-06OE22495271.10 ppm
2023-04-04OE22616631.10 ppm
2023-05-02OE22743531.000 ppm
2023-06-12OE22919070.490 ppm
2023-07-10OE2303804ND
2023-08-02OE2316202ND
2023-09-06OE23323120.270 ppm
2023-10-03OE23451630.360 ppm
2023-11-07OE23598690.400 ppm
2023-12-12OE23741530.400 ppm