Nitrate
Vandalia
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.688 ppm | 24 | 24 | 0.340 ppm - 0.970 ppm |
| 2019 | 0.879 ppm | 25 | 25 | 0.350 ppm - 1.60 ppm |
| 2020 | 1.06 ppm | 25 | 25 | 0.670 ppm - 1.70 ppm |
| 2021 | 1.03 ppm | 33 | 33 | 0.310 ppm - 2.10 ppm |
| 2022 | 1.08 ppm | 34 | 34 | 0.220 ppm - 2.00 ppm |
| 2023 | 0.643 ppm | 40 | 39 | ND - 1.30 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 |
|---|---|---|
| 2018-01-08 | 8011021-01 | 0.770 ppm |
| 2018-01-09 | 8011456-01 | 0.760 ppm |
| 2018-01-22 | 8013385-01 | 0.840 ppm |
| 2018-02-12 | 8021846-01 | 0.770 ppm |
| 2018-02-20 | 8023257-01 | 0.800 ppm |
| 2018-03-05 | 8030620-01 | 0.840 ppm |
| 2018-03-20 | 8033502-01 | 0.850 ppm |
| 2018-04-09 | 8041629-01 | 0.840 ppm |
| 2018-04-17 | 8043210-01 | 0.890 ppm |
| 2018-05-01 | 8050391-01 | 0.950 ppm |
| 2018-05-21 | 8053773-01 | 0.350 ppm |
| 2018-06-05 | 8060919-01 | 0.450 ppm |
| 2018-06-19 | 8063477-01 | 0.550 ppm |
| 2018-07-24 | 8074755-01 | 0.480 ppm |
| 2018-07-24 | 8074757-01 | 0.480 ppm |
| 2018-08-01 | 8080326-01 | 0.390 ppm |
| 2018-08-20 | 8083939-01 | 0.340 ppm |
| 2018-09-17 | 8092968-01 | 0.340 ppm |
| 2018-10-09 | 8102126-01 | 0.430 ppm |
| 2018-10-23 | 8104637-01 | 0.850 ppm |
| 2018-11-06 | 8111161-01 | 0.970 ppm |
| 2018-11-19 | 8113534-01 | 0.950 ppm |
| 2018-12-03 | 8120175-01 | 0.840 ppm |
| 2018-12-17 | 8123152-01 | 0.790 ppm |
| 2019-01-07 | 9010874-01 | 0.970 ppm |
| 2019-01-08 | 9011357-01 | 1.10 ppm |
| 2019-01-23 | 9013830-01 | 0.960 ppm |
| 2019-02-05 | 9020860-01 | 0.870 ppm |
| 2019-02-26 | 9024369-01 | 0.990 ppm |
| 2019-03-05 | 9030723-01 | 0.900 ppm |
| 2019-03-19 | 9033234-01 | 0.930 ppm |
| 2019-04-09 | 9042279-01 | 1.10 ppm |
| 2019-04-24 | 9045236-01 | 0.900 ppm |
| 2019-05-07 | 9051726-01 | 0.820 ppm |
| 2019-05-20 | 9054434-01 | 0.670 ppm |
| 2019-06-04 | 9060675-01 | 0.370 ppm |
| 2019-06-18 | 9063420-01 | 0.630 ppm |
| 2019-07-02 | 9070671-01 | 0.720 ppm |
| 2019-07-23 | 9074887-01 | 0.640 ppm |
| 2019-08-08 | 9082158-01 | 0.350 ppm |
| 2019-08-20 | 9084577-01 | 0.550 ppm |
| 2019-09-09 | 9091427-01 | 0.560 ppm |
| 2019-09-24 | 9094791-01 | 0.650 ppm |
| 2019-10-08 | 9102012-01 | 0.500 ppm |
| 2019-10-22 | 9104617-01 | 1.10 ppm |
| 2019-11-12 | 9112010-01 | 1.30 ppm |
| 2019-11-25 | 9114532-01 | 1.60 ppm |
| 2019-12-09 | 9121819-01 | 1.40 ppm |
| 2019-12-16 | 9123236-01 | 1.40 ppm |
| 2020-01-06 | 0010755-01 | 1.20 ppm |
| 2020-01-21 | 0013771-01 | 0.760 ppm |
| 2020-02-10 | 0021741-01 | 0.870 ppm |
| 2020-02-25 | 0024323-01 | 0.910 ppm |
| 2020-02-25 | 0024325-01 | 0.920 ppm |
| 2020-03-10 | 0031993-01 | 1.20 ppm |
| 2020-03-24 | 0034236-01 | 1.10 ppm |
| 2020-04-07 | 0041606-01 | 1.20 ppm |
| 2020-04-20 | 0043619-01 | 1.10 ppm |
| 2020-05-05 | 0050930-01 | 1.10 ppm |
| 2020-05-19 | 0053575-01 | 1.30 ppm |
| 2020-06-08 | 0061749-01 | 0.980 ppm |
| 2020-06-23 | 0064954-01 | 0.670 ppm |
| 2020-07-13 | 0072524-01 | 0.800 ppm |
| 2020-07-21 | 0074471-01 | 0.870 ppm |
| 2020-08-12 | 0082996-01 | 0.790 ppm |
| 2020-08-25 | 0085494-01 | 0.790 ppm |
| 2020-09-08 | 0091699-01 | 0.780 ppm |
| 2020-09-23 | 0095270-01 | 0.810 ppm |
| 2020-10-07 | 0101754-01 | 1.10 ppm |
| 2020-10-20 | 0104058-01 | 1.10 ppm |
| 2020-11-10 | 0112092-01 | 1.30 ppm |
| 2020-11-23 | 0114311-01 | 1.40 ppm |
| 2020-12-10 | 0122483-01 | 1.70 ppm |
| 2020-12-21 | 0124069-01 | 1.70 ppm |
| 2021-01-12 | EA02013-01 | 1.70 ppm |
| 2021-01-12 | EA02075-01 | 1.80 ppm |
| 2021-01-26 | EA04372-01 | 1.50 ppm |
| 2021-02-09 | EB01934-01 | 1.50 ppm |
| 2021-02-09 | EB01940-01 | 1.40 ppm |
| 2021-02-23 | EB04016-01 | 2.10 ppm |
| 2021-03-09 | EC02074-01 | 1.40 ppm |
| 2021-03-23 | EC04376-01 | 1.40 ppm |
| 2021-04-12 | ED02281-01 | 1.20 ppm |
| 2021-04-12 | ED02285-01 | 1.30 ppm |
| 2021-04-21 | ED04395-01 | 1.20 ppm |
| 2021-05-12 | EE02689-01 | 0.950 ppm |
| 2021-05-12 | EE02760-01 | 0.950 ppm |
| 2021-05-26 | EE05124-01 | 0.580 ppm |
| 2021-06-08 | EF01887-01 | 0.500 ppm |
| 2021-06-08 | EF01889-01 | 0.490 ppm |
| 2021-06-23 | EF04841-01 | 0.630 ppm |
| 2021-07-12 | EG02118-01 | 0.360 ppm |
| 2021-07-12 | EG02121-01 | 0.360 ppm |
| 2021-07-27 | EG05602-01 | 0.310 ppm |
| 2021-08-11 | EH02851-01 | 0.390 ppm |
| 2021-08-25 | EH05573-01 | 0.370 ppm |
| 2021-09-08 | EI01649-01 | 0.560 ppm |
| 2021-09-08 | EI01653-01 | 0.560 ppm |
| 2021-09-28 | EI05408-01 | 0.610 ppm |
| 2021-10-12 | EJ02495-01 | 0.360 ppm |
| 2021-10-27 | EJ05310-01 | 0.860 ppm |
| 2021-11-09 | EK02182-01 | 1.30 ppm |
| 2021-11-09 | EK02183-01 | 1.30 ppm |
| 2021-11-22 | EK04511-01 | 1.40 ppm |
| 2021-12-07 | EL01627-01 | 1.40 ppm |
| 2021-12-07 | EL01631-01 | 1.40 ppm |
| 2021-12-20 | EL04038-01 | 1.70 ppm |
| 2022-01-04 | FA00641-01 | 1.60 ppm |
| 2022-01-04 | FA00648-01 | 1.60 ppm |
| 2022-01-26 | FA04620-01 | 2.00 ppm |
| 2022-02-08 | FB01476-01 | 2.00 ppm |
| 2022-02-08 | FB01496-01 | 1.90 ppm |
| 2022-02-08 | FB01511-01 | 1.90 ppm |
| 2022-02-22 | FB04011-01 | 1.60 ppm |
| 2022-03-09 | FC02052-01 | 1.60 ppm |
| 2022-03-09 | FC02054-01 | 1.60 ppm |
| 2022-03-29 | FC05167-01 | 1.30 ppm |
| 2022-04-13 | FD02511-01 | 1.000 ppm |
| 2022-04-13 | FD02512-01 | 0.940 ppm |
| 2022-04-27 | FD04916-01 | 1.000 ppm |
| 2022-05-11 | FE02605-01 | 0.990 ppm |
| 2022-05-11 | FE02607-01 | 0.990 ppm |
| 2022-05-25 | FE05123-01 | 0.780 ppm |
| 2022-06-08 | FF01968-01 | 0.510 ppm |
| 2022-06-08 | FF02013-01 | 0.480 ppm |
| 2022-06-27 | FF05175-01 | 0.520 ppm |
| 2022-07-11 | FG01777-01 | 0.420 ppm |
| 2022-07-11 | FG01778-01 | 0.420 ppm |
| 2022-07-27 | FG05280-01 | 0.220 ppm |
| 2022-08-10 | FH02699-01 | 0.550 ppm |
| 2022-08-10 | FH02711-01 | 0.530 ppm |
| 2022-08-24 | FH05354-01 | 0.440 ppm |
| 2022-10-11 | FJ02104-01 | 0.900 ppm |
| 2022-10-11 | FJ02190-01 | 0.930 ppm |
| 2022-10-26 | FJ04999-01 | 0.990 ppm |
| 2022-11-08 | FK01810-01 | 1.10 ppm |
| 2022-11-08 | FK01831-01 | 1.10 ppm |
| 2022-11-28 | FK04760-01 | 1.10 ppm |
| 2022-12-13 | FL02693-01 | 1.30 ppm |
| 2022-12-13 | FL02923-01 | 1.20 ppm |
| 2022-12-28 | FL04791-01 | 1.20 ppm |
| 2023-01-10 | GA01813-01 | 1.30 ppm |
| 2023-01-10 | GA01816-01 | 1.30 ppm |
| 2023-01-25 | GA04260-01 | 1.10 ppm |
| 2023-01-26 | GA04258-01 | 1.10 ppm |
| 2023-02-13 | GB02619-01 | 1.000 ppm |
| 2023-02-13 | GB02630-01 | 1.000 ppm |
| 2023-02-27 | GB04720-01 | 0.870 ppm |
| 2023-02-27 | GB04728-01 | 0.880 ppm |
| 2023-03-13 | GC02282-01 | 0.760 ppm |
| 2023-03-13 | GC02288-01 | 0.780 ppm |
| 2023-03-29 | GC04877-01 | 0.900 ppm |
| 2023-04-11 | GD01888-01 | 1.000 ppm |
| 2023-04-11 | GD01893-01 | 1.000 ppm |
| 2023-04-25 | GD04594-01 | 1.20 ppm |
| 2023-04-28 | GD04979-01 | 1.000 ppm |
| 2023-05-10 | GE02357-01 | 0.970 ppm |
| 2023-05-10 | GE02371-01 | 0.960 ppm |
| 2023-05-16 | GE03428-01 | 1.000 ppm |
| 2023-06-12 | GF02298-01 | 0.190 ppm |
| 2023-06-12 | GF02300-01 | 0.230 ppm |
| 2023-06-26 | GF04641-01 | 0.280 ppm |
| 2023-07-12 | GG01987-01 | 0.380 ppm |
| 2023-07-12 | GG02073-01 | 0.390 ppm |
| 2023-07-26 | GG04719-01 | 0.110 ppm |
| 2023-07-26 | GG04726-01 | 0.1000 ppm |
| 2023-08-09 | GH02348-01 | 0.270 ppm |
| 2023-08-09 | GH02349-01 | 0.260 ppm |
| 2023-08-30 | GH06025-01 | 0.190 ppm |
| 2023-09-13 | GI02296-01 | ND |
| 2023-09-13 | GI02322-01 | 0.230 ppm |
| 2023-09-27 | GI04916-01 | 0.360 ppm |
| 2023-10-11 | GJ02285-01 | 0.130 ppm |
| 2023-10-11 | GJ02288-01 | 0.140 ppm |
| 2023-10-24 | GJ04489-01 | 0.850 ppm |
| 2023-11-13 | GK02343-01 | 0.590 ppm |
| 2023-11-13 | GK02345-01 | 0.580 ppm |
| 2023-11-28 | GK04435-01 | 0.610 ppm |
| 2023-12-13 | GL02656-01 | 0.570 ppm |
| 2023-12-13 | GL02671-01 | 0.570 ppm |
| 2023-12-20 | GL03905-01 | 0.560 ppm |