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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

MS0410023 , Natchez Trace Parkway

38 of the 67 analytes this system has been tested for have been detected at least once, across 216 samples on record.

The other 29 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 216 samples on record, detections range from October 1, 2003 to March 10, 2025. 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 Natchez Trace Parkway, 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 45 of 45 results Aug 4, 2004 Aug 29, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Oct 1, 2003 Mar 10, 2025
Fluoride 1025 Inorganic Chemical 22 of 24 results Oct 1, 2003 Mar 10, 2025
Nickel 1036 Inorganic Chemical 17 of 22 results Oct 1, 2003 Mar 10, 2025
Lead 1030 Inorganic Chemical 16 of 45 results Aug 4, 2004 Aug 29, 2023
Chromium 1020 Inorganic Chemical 15 of 22 results Oct 1, 2003 Sep 26, 2022
Xylenes, Total 2955 Organic Chemical 14 of 58 results Aug 9, 2004 Mar 3, 2025
Arsenic 1005 Inorganic Chemical 8 of 22 results May 10, 2010 Mar 10, 2025
TTHM 2950 Organic Chemical 6 of 8 results Sep 17, 2007 Feb 10, 2025
Sulfate 1055 Inorganic Chemical 6 of 6 results Oct 1, 2003 Apr 14, 2017
Selenium 1045 Inorganic Chemical 6 of 22 results Oct 1, 2003 Jul 9, 2012
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 8 results Sep 17, 2007 Dec 5, 2022
Dichloromethane 2964 Organic Chemical 4 of 58 results Aug 9, 2004 Jun 21, 2022
Sodium 1052 Inorganic Chemical 4 of 4 results Apr 14, 2017 Feb 14, 2022
Bromoform 2942 Organic Chemical 4 of 5 results Sep 17, 2007 Sep 10, 2018
Ethylbenzene 2992 Organic Chemical 3 of 58 results Aug 9, 2004 Oct 29, 2013
Dichloroacetic Acid 2451 Organic Chemical 2 of 4 results Jul 24, 2013 Sep 10, 2018
Dibromoacetic Acid 2454 Organic Chemical 2 of 4 results Jul 24, 2013 Sep 10, 2018
Bromodichloromethane 2943 Organic Chemical 2 of 5 results Jul 24, 2013 Sep 10, 2018
Dibromochloromethane 2944 Organic Chemical 2 of 5 results Jul 24, 2013 Sep 10, 2018
Calcium 1016 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Chloride 1017 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Iron 1028 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Magnesium 1031 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Manganese 1032 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Potassium 1042 Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
Carbon Dioxide 1901 Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
Color 1905 Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
Alkalinity, Total 1927 Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Apr 14, 2017 Apr 14, 2017
Calculated Sodium NACA Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
PH, Field Result PHFD Water Quality 2 of 2 results Apr 14, 2017 Apr 14, 2017
1,2-Dichloroethane 2980 Organic Chemical 2 of 58 results Mar 7, 2016 Mar 14, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 4 results Sep 10, 2018 Sep 10, 2018
Carbon Tetrachloride 2982 Organic Chemical 1 of 58 results Mar 14, 2017 Mar 14, 2017
Cadmium 1015 Inorganic Chemical 1 of 22 results Feb 27, 2006 Feb 27, 2006

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 31–40 of 216 samples, newest first — collected October 5, 2020 to February 14, 2022. The summary above covers all 216.

62 results from the 10 samples listed here: 7 detected, 55 not detected. Across the whole record it is 238 of 1,809. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Natchez Trace Parkway, every result from 31 to 40 of 216 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
Feb 14, 2022 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-220215-039
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Feb 14, 2022 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-220215-038
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:15, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:15, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 14, 2022 13:15, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jun 8, 2021 12:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
VO-210609-002
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 8, 2021 12:30, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Mar 15, 2021 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
210316-004VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:00, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2021 – Dec 31, 2021
Collected
Mar 8, 2021 13:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-210309-015
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Mar 8, 2021 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210309-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Oct 5, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
201006-045PB
Laboratory
MSDH Lab
0.0049 mg/l , sample collected Oct 5, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.002 mg/l , sample collected Oct 5, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Oct 5, 2020 08:12
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
201006-044PB
Laboratory
MSDH Lab
0.1673 mg/l , sample collected Oct 5, 2020 08:12, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0005 mg/l , sample collected Oct 5, 2020 08:12, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Oct 5, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
201006-043PB
Laboratory
MSDH Lab
0.3235 mg/l , sample collected Oct 5, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 5, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Oct 5, 2020 08:59
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
201006-042PB
Laboratory
MSDH Lab
0.1035 mg/l , sample collected Oct 5, 2020 08:59, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0061 mg/l , sample collected Oct 5, 2020 08:59, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020

Routine (10).