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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 131–140 of 216 samples, newest first — collected November 9, 2009 to August 9, 2010. The summary above covers all 216.

51 results from the 10 samples listed here: 17 detected, 34 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 131 to 140 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
Aug 9, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100810-082NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 9, 2010, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Jun 8, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100609-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 8, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 8, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100609-002TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
2.38 ug/l , sample collected Jun 8, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 8, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.38 ug/l , sample collected Jun 8, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
May 10, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100511-048IN
Laboratory
MSDH Lab
0.001 mg/l , sample collected May 10, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.1504 mg/l , sample collected May 10, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0013 mg/l , sample collected May 10, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.123 mg/l , sample collected May 10, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0025 mg/l , sample collected May 10, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
May 10, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100511-047IN
Laboratory
MSDH Lab
0.0011 mg/l , sample collected May 10, 2010, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.1502 mg/l , sample collected May 10, 2010, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
0.0011 mg/l , sample collected May 10, 2010, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
0.132 mg/l , sample collected May 10, 2010, sampling point TF102 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
0.0016 mg/l , sample collected May 10, 2010, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2010, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
May 3, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100504-032CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 3, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100504-031CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 3, 2010, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Dec 7, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
091208-009CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Dec 7, 2009, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Dec 7, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
091208-008CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Dec 7, 2009, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Nov 9, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
091110-006IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.157715 mg/l , sample collected Nov 9, 2009, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
0.001834 mg/l , sample collected Nov 9, 2009, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
0.14 mg/l , sample collected Nov 9, 2009, sampling point TF102 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
0.0015 mg/l , sample collected Nov 9, 2009, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded

Routine (10).