Chemical and radiological sample results

MS0010002 , City of Natchez

25 of the 60 analytes this system has been tested for have been detected at least once, across 805 samples on record.

The other 35 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 805 samples on record, detections range from September 24, 1992 to June 22, 2026. 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 City of Natchez, 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	302 of 496 results	Sep 30, 1992	Jun 17, 2024
Lead 1030	Inorganic Chemical	293 of 496 results	Sep 24, 1992	Jun 17, 2024
TTHM 2950	Organic Chemical	125 of 125 results	Mar 9, 2004	Jun 16, 2026
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	122 of 125 results	Mar 9, 2004	Jun 16, 2026
Chloroform 2941	Organic Chemical	107 of 107 results	Jul 24, 2006	Jun 16, 2026
Bromodichloromethane 2943	Organic Chemical	107 of 107 results	Jul 24, 2006	Jun 16, 2026
Dibromochloromethane 2944	Organic Chemical	107 of 107 results	Jul 24, 2006	Jun 16, 2026
Dichloroacetic Acid 2451	Organic Chemical	104 of 104 results	Dec 10, 2007	Jun 16, 2026
Trichloroacetic Acid 2452	Organic Chemical	104 of 104 results	Dec 10, 2007	Jun 16, 2026
Monochloroacetic Acid 2450	Organic Chemical	36 of 104 results	Dec 10, 2007	Apr 15, 2019
Dibromoacetic Acid 2454	Organic Chemical	32 of 104 results	Dec 10, 2007	Nov 27, 2017
Nitrate-Nitrite 1038	Inorganic Chemical	21 of 23 results	May 3, 2004	Jan 28, 2026
Nitrate 1040	Inorganic Chemical	21 of 23 results	May 3, 2004	Jan 28, 2026
Fluoride 1025	Inorganic Chemical	12 of 12 results	Jan 15, 2002	Jun 22, 2026
Barium 1010	Inorganic Chemical	11 of 11 results	Jan 15, 2002	Jan 13, 2025
Chromium 1020	Inorganic Chemical	7 of 11 results	Jan 12, 2004	Jan 13, 2025
Monobromoacetic Acid 2453	Organic Chemical	5 of 104 results	Aug 10, 2010	Mar 12, 2019
Sodium 1052	Inorganic Chemical	3 of 3 results	Sep 16, 2019	Oct 14, 2024
Gross Alpha, Incl. Radon & U 4002	Radionuclide	1 of 1 result	Mar 20, 2018	Mar 20, 2018
Radium-226 4020	Radionuclide	1 of 3 results	Mar 20, 2018	Mar 20, 2018
Gross Alpha, Excl. Radon & U 4000	Radionuclide	1 of 2 results	Jan 28, 2009	Jan 28, 2009
Gross Alpha Particle Activity 4109	Radionuclide	1 of 2 results	Jan 28, 2009	Jan 28, 2009
Nickel 1036	Inorganic Chemical	1 of 11 results	Mar 10, 2008	Mar 10, 2008
Mercury 1035	Inorganic Chemical	1 of 11 results	Jan 10, 2005	Jan 10, 2005
Selenium 1045	Inorganic Chemical	1 of 11 results	Jan 10, 2005	Jan 10, 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 191–200 of 805 samples, newest first — collected August 22, 2016 to November 29, 2016. The summary above covers all 805.

54 results from the 10 samples listed here: 39 detected, 15 not detected. Across the whole record it is 1,526 of 2,562. 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 4 sampling points 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 City of Natchez, every result from 191 to 200 of 805 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 Nov 29, 2016 09:13 Sampling point SM4 Location withheld Sample type Routine Lab sample 161130-013TH Laboratory MSDH Lab
17.5 ug/l , sample collected Nov 29, 2016 09:13, sampling point SM4	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 29, 2016 09:13, sampling point SM4	Bromoform 2942 EPA method 524.2	Not recorded
9.41 ug/l , sample collected Nov 29, 2016 09:13, sampling point SM4	Bromodichloromethane 2943 EPA method 524.2	Not recorded
2.9 ug/l , sample collected Nov 29, 2016 09:13, sampling point SM4	Dibromochloromethane 2944 EPA method 524.2	Not recorded
29.8 ug/l , sample collected Nov 29, 2016 09:13, sampling point SM4	TTHM 2950	Oct 1, 2016 – Dec 31, 2016
Collected Nov 29, 2016 08:45 Sampling point SM3 Location withheld Sample type Routine Lab sample 161130-012TH Laboratory MSDH Lab
23.6 ug/l , sample collected Nov 29, 2016 08:45, sampling point SM3	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 29, 2016 08:45, sampling point SM3	Bromoform 2942 EPA method 524.2	Not recorded
10.4 ug/l , sample collected Nov 29, 2016 08:45, sampling point SM3	Bromodichloromethane 2943 EPA method 524.2	Not recorded
3.13 ug/l , sample collected Nov 29, 2016 08:45, sampling point SM3	Dibromochloromethane 2944 EPA method 524.2	Not recorded
37.1 ug/l , sample collected Nov 29, 2016 08:45, sampling point SM3	TTHM 2950	Oct 1, 2016 – Dec 31, 2016
Collected Nov 29, 2016 08:00 Sampling point SM1 Location withheld Sample type Routine Lab sample 161130-011TH Laboratory MSDH Lab
8.68 ug/l , sample collected Nov 29, 2016 08:00, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 29, 2016 08:00, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
5.04 ug/l , sample collected Nov 29, 2016 08:00, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
1.7 ug/l , sample collected Nov 29, 2016 08:00, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
15.4 ug/l , sample collected Nov 29, 2016 08:00, sampling point SM1	TTHM 2950	Oct 1, 2016 – Dec 31, 2016
Collected Aug 22, 2016 01:45 Sampling point SM3 Location withheld Sample type Routine Lab sample 160823-031HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:45, sampling point SM3	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.009 mg/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:45, sampling point SM3	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.02 mg/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 01:00 Sampling point SM1 Location withheld Sample type Routine Lab sample 160823-030HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:00, sampling point SM1	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.007 mg/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 01:00, sampling point SM1	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.02 mg/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 03:15 Sampling point SM5 Location withheld Sample type Routine Lab sample 160823-029HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 03:15, sampling point SM5	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.004 mg/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 03:15, sampling point SM5	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 03:15, sampling point SM5	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 02:30 Sampling point SM4 Location withheld Sample type Routine Lab sample 160823-028HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 02:30, sampling point SM4	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.008 mg/l , sample collected Aug 22, 2016 02:30, sampling point SM4	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.008 mg/l , sample collected Aug 22, 2016 02:30, sampling point SM4	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2016 02:30, sampling point SM4	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Aug 22, 2016 02:30, sampling point SM4	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.017 mg/l , sample collected Aug 22, 2016 02:30, sampling point SM4	Total Haloacetic Acids (Haa5) 2456	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 01:45 Sampling point SM3 Location withheld Sample type Routine Lab sample 160823-031TH Laboratory MSDH Lab
42.7 ug/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2016 01:45, sampling point SM3	Bromoform 2942 EPA method 524.2	Not recorded
9.82 ug/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Bromodichloromethane 2943 EPA method 524.2	Not recorded
3.11 ug/l , sample collected Aug 22, 2016 01:45, sampling point SM3	Dibromochloromethane 2944 EPA method 524.2	Not recorded
55.6 ug/l , sample collected Aug 22, 2016 01:45, sampling point SM3	TTHM 2950	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 01:00 Sampling point SM1 Location withheld Sample type Routine Lab sample 160823-030TH Laboratory MSDH Lab
52.5 ug/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2016 01:00, sampling point SM1	Bromoform 2942 EPA method 524.2	Not recorded
10 ug/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Bromodichloromethane 2943 EPA method 524.2	Not recorded
2.88 ug/l , sample collected Aug 22, 2016 01:00, sampling point SM1	Dibromochloromethane 2944 EPA method 524.2	Not recorded
65 ug/l , sample collected Aug 22, 2016 01:00, sampling point SM1	TTHM 2950	Jul 1, 2016 – Sep 30, 2016
Collected Aug 22, 2016 03:15 Sampling point SM5 Location withheld Sample type Routine Lab sample 160823-029TH Laboratory MSDH Lab
59.8 ug/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2016 03:15, sampling point SM5	Bromoform 2942 EPA method 524.2	Not recorded
11 ug/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Bromodichloromethane 2943 EPA method 524.2	Not recorded
3.2 ug/l , sample collected Aug 22, 2016 03:15, sampling point SM5	Dibromochloromethane 2944 EPA method 524.2	Not recorded
74 ug/l , sample collected Aug 22, 2016 03:15, sampling point SM5	TTHM 2950	Jul 1, 2016 – Sep 30, 2016

Collected
Nov 29, 2016 09:13

Sampling point
SM4 Location withheld

Sample type
Routine

Lab sample
161130-013TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  17.5 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  9.41 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  2.9 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  29.8 ug/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Nov 29, 2016 08:45

Sampling point
SM3 Location withheld

Sample type
Routine

Lab sample
161130-012TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  23.6 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  10.4 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  3.13 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  37.1 ug/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Nov 29, 2016 08:00

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
161130-011TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  8.68 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  5.04 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  1.7 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  15.4 ug/l
  
  Monitoring period
  Oct 1, 2016 – Dec 31, 2016
Collected
Aug 22, 2016 01:45

Sampling point
SM3 Location withheld

Sample type
Routine

Lab sample
160823-031HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.009 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.02 mg/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 01:00

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
160823-030HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.007 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.02 mg/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 03:15

Sampling point
SM5 Location withheld

Sample type
Routine

Lab sample
160823-029HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.004 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.01 mg/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 02:30

Sampling point
SM4 Location withheld

Sample type
Routine

Lab sample
160823-028HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.008 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.008 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.017 mg/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 01:45

Sampling point
SM3 Location withheld

Sample type
Routine

Lab sample
160823-031TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  42.7 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  9.82 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  3.11 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  55.6 ug/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 01:00

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
160823-030TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  52.5 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  10 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  2.88 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  65 ug/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016
Collected
Aug 22, 2016 03:15

Sampling point
SM5 Location withheld

Sample type
Routine

Lab sample
160823-029TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  59.8 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  11 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  3.2 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  74 ug/l
  
  Monitoring period
  Jul 1, 2016 – Sep 30, 2016

Routine (10).