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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0820024 , CF Industries Nitrogen, LLC

19 of the 53 analytes this system has been tested for have been detected at least once, across 211 samples on record.

The other 34 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 211 samples on record, detections range from November 5, 2003 to February 14, 2024. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for CF Industries Nitrogen, LLC, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 66 of 66 results Jul 19, 2007 Aug 16, 2023
Lead 1030 Inorganic Chemical 43 of 66 results Jul 19, 2007 Sep 11, 2020
Barium 1010 Inorganic Chemical 27 of 27 results Nov 5, 2003 Feb 14, 2024
Sulfate 1055 Inorganic Chemical 11 of 11 results Nov 5, 2003 Apr 7, 2004
Fluoride 1025 Inorganic Chemical 7 of 27 results Apr 7, 2004 Feb 14, 2024
Chromium 1020 Inorganic Chemical 6 of 27 results May 4, 2005 Dec 12, 2023
TTHM 2950 Organic Chemical 5 of 7 results Sep 17, 2007 Dec 14, 2022
Nickel 1036 Inorganic Chemical 4 of 27 results May 4, 2005 May 10, 2017
Chloroform 2941 Organic Chemical 2 of 4 results Sep 24, 2013 Sep 13, 2016
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 6 results Aug 4, 2010 Sep 24, 2013
Sodium 1052 Inorganic Chemical 1 of 1 result Mar 29, 2023 Mar 29, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 35 results May 26, 2020 May 26, 2020
Nitrate 1040 Inorganic Chemical 1 of 35 results May 26, 2020 May 26, 2020
Nitrite 1041 Inorganic Chemical 1 of 35 results May 26, 2020 May 26, 2020
Dichloroacetic Acid 2451 Organic Chemical 1 of 3 results Sep 24, 2013 Sep 24, 2013
Trichloroacetic Acid 2452 Organic Chemical 1 of 3 results Sep 24, 2013 Sep 24, 2013
Selenium 1045 Inorganic Chemical 1 of 27 results Apr 26, 2006 Apr 26, 2006
Arsenic 1005 Inorganic Chemical 1 of 27 results May 4, 2005 May 4, 2005
Beryllium, Total 1075 Inorganic Chemical 1 of 27 results May 4, 2005 May 4, 2005

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 1–10 of 211 samples, newest first — collected August 16, 2023 to August 11, 2026. The summary above covers all 211.

40 results from the 10 samples listed here: 8 detected, 32 not detected. Across the whole record it is 182 of 1,482. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for CF Industries Nitrogen, LLC, every result from 1 to 10 of 211 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Aug 11, 2026
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
35057758001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Aug 11, 2026, sampling point TF101 Cyanide 1024 EPA method 335.4 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 11, 2026, sampling point TF101 Nitrate-Nitrite 1038 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 11, 2026, sampling point TF101 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 11, 2026, sampling point TF101 Nitrite 1041 EPA method 353.2 Not recorded
Collected
Feb 9, 2026 15:12
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
NI-260210-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 9, 2026 15:12, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 9, 2026 15:12, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 9, 2026 15:12, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
May 12, 2025 14:15
Sampling point
SM2 Anf
Sample type
Routine
Lab sample
HA-250513-002
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 12, 2025 14:15, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
May 12, 2025 14:08
Sampling point
SM2 Anf
Sample type
Routine
Lab sample
TH-250513-002
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 12, 2025 14:08, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 23, 2024 15:15
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
NI-240424-010
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 23, 2024 15:15, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 23, 2024 15:15, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 23, 2024 15:15, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 14, 2024 10:48
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
IN-240215-018
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.0067 mg/l , sample collected Feb 14, 2024 10:48, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.148 mg/l , sample collected Feb 14, 2024 10:48, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2024 10:48, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Collected
Dec 12, 2023 11:14
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
IN-231212-001
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.0066 mg/l , sample collected Dec 12, 2023 11:14, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.002 mg/l , sample collected Dec 12, 2023 11:14, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.141 mg/l , sample collected Dec 12, 2023 11:14, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2023 11:14, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 16, 2023 18:59
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230817-128
Laboratory
MSDH Lab
0.0548 mg/l , sample collected Aug 16, 2023 18:59, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2023 18:59, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 16, 2023 18:58
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230817-127
Laboratory
MSDH Lab
0.0197 mg/l , sample collected Aug 16, 2023 18:58, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2023 18:58, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 16, 2023 18:57
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230817-126
Laboratory
MSDH Lab
0.0189 mg/l , sample collected Aug 16, 2023 18:57, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 16, 2023 18:57, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).