Chemical and radiological sample results

MS0570004 , City of McComb

25 of the 65 analytes this system has been tested for have been detected at least once, across 395 samples on record.

The other 40 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 395 samples on record, detections range from July 23, 2002 to August 19, 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 City of McComb, 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	242 of 242 results	Jun 10, 2004	Aug 19, 2025
Lead 1030	Inorganic Chemical	159 of 242 results	Jun 10, 2004	Aug 19, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	20 of 46 results	Aug 8, 2005	Nov 1, 2021
Fluoride 1025	Inorganic Chemical	11 of 11 results	Jul 23, 2002	Mar 19, 2025
Monochloroacetic Acid 2450	Organic Chemical	11 of 30 results	Jun 11, 2012	Jun 11, 2018
Barium 1010	Inorganic Chemical	10 of 10 results	Jul 23, 2002	Mar 19, 2025
Arsenic 1005	Inorganic Chemical	9 of 10 results	Mar 17, 2004	Mar 19, 2025
TTHM 2950	Organic Chemical	9 of 49 results	Aug 4, 2004	Aug 19, 2010
Sodium 1052	Inorganic Chemical	3 of 3 results	Oct 15, 2021	Feb 24, 2025
Sulfate 1055	Inorganic Chemical	3 of 3 results	Jul 23, 2002	Oct 15, 2021
Chromium 1020	Inorganic Chemical	3 of 10 results	Jul 23, 2002	Dec 12, 2016
Cadmium 1015	Inorganic Chemical	2 of 10 results	Apr 11, 2005	May 8, 2013
Calcium 1016	Inorganic Chemical	1 of 1 result	Oct 15, 2021	Oct 15, 2021
Chloride 1017	Inorganic Chemical	1 of 1 result	Oct 15, 2021	Oct 15, 2021
Conductivity @ 25 C Umhos/CM 1064	Water Quality	1 of 1 result	Oct 15, 2021	Oct 15, 2021
Alkalinity, Total 1927	Water Quality	1 of 1 result	Oct 15, 2021	Oct 15, 2021
Gross Alpha, Incl. Radon & U 4002	Radionuclide	1 of 1 result	Sep 17, 2019	Sep 17, 2019
Combined Radium (-226 & -228) 4010	Radionuclide	1 of 3 results	Sep 17, 2019	Sep 17, 2019
Radium-226 4020	Radionuclide	1 of 3 results	Sep 17, 2019	Sep 17, 2019
Radium-228 4030	Radionuclide	1 of 3 results	Sep 17, 2019	Sep 17, 2019
Dichloroacetic Acid 2451	Organic Chemical	1 of 30 results	Dec 1, 2016	Dec 1, 2016
Nickel 1036	Inorganic Chemical	1 of 10 results	May 8, 2013	May 8, 2013
Monobromoacetic Acid 2453	Organic Chemical	1 of 30 results	Sep 3, 2009	Sep 3, 2009
Selenium 1045	Inorganic Chemical	1 of 10 results	Apr 11, 2005	Apr 11, 2005
Dichloromethane 2964	Organic Chemical	1 of 7 results	Aug 24, 2004	Aug 24, 2004

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 391–395 of 395 samples, newest first — collected February 5, 2002 to March 11, 2004. The summary above covers all 395.

36 results from the 5 samples listed here: 4 detected, 32 not detected. 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 City of McComb, every result from 391 to 395 of 395 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 Mar 11, 2004 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 040312-003TH Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 11, 2004, sampling point MRT000	TTHM 2950 EPA method 524.2	Jan 1, 2004 – Mar 31, 2004
Collected Feb 26, 2004 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 040227-030VO Laboratory MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,2,4-Trichlorobenzene 2378	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Cis-1,2-Dichloroethylene 2380	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Xylenes, Total 2955	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Dichloromethane 2964	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	O-Dichlorobenzene 2968	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	P-Dichlorobenzene 2969	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Vinyl Chloride 2976	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,1-Dichloroethylene 2977	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Trans-1,2-Dichloroethylene 2979	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,2-Dichloroethane 2980	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,1,1-Trichloroethane 2981	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Carbon Tetrachloride 2982	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,2-Dichloropropane 2983	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Trichloroethylene 2984	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	1,1,2-Trichloroethane 2985	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Tetrachloroethylene 2987	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Chlorobenzene 2989	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Benzene 2990	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Toluene 2991	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Ethylbenzene 2992	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 26, 2004, sampling point TF080	Styrene 2996	Jan 1, 2004 – Mar 31, 2004
Collected Jul 23, 2002 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 020724-013IN Laboratory MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Arsenic 1005 EPA method 200.8	Not recorded
0.005 mg/l , sample collected Jul 23, 2002, sampling point TF080	Barium 1010 EPA method 200.8	Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Cadmium 1015 EPA method 200.8	Not recorded
0.007 mg/l , sample collected Jul 23, 2002, sampling point TF080	Chromium 1020 EPA method 200.8	Not recorded
0.898 mg/l , sample collected Jul 23, 2002, sampling point TF080	Fluoride 1025 EPA method 300.0	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Mercury 1035 EPA method 200.8	Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Selenium 1045 EPA method 200.8	Not recorded
18.7 mg/l , sample collected Jul 23, 2002, sampling point TF080	Sulfate 1055 EPA method 300.0	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Antimony, Total 1074 EPA method 200.8	Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Beryllium, Total 1075 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2002, sampling point TF080	Thallium, Total 1085 EPA method 200.8	Not recorded
Collected Feb 19, 2002 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 020220-013CN Laboratory MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 19, 2002, sampling point TF080	Cyanide 1024 EPA method 335.4	Jan 1, 2002 – Dec 31, 2004
Collected Feb 5, 2002 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 020206-041CN Laboratory MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 5, 2002, sampling point TF080	Cyanide 1024 EPA method 335.4	Jan 1, 2002 – Dec 31, 2004

Collected
Mar 11, 2004

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
040312-003TH

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2004 – Mar 31, 2004
- TTHM 2950 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Feb 26, 2004

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
040227-030VO

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2004 – Mar 31, 2004
- 1,2,4-Trichlorobenzene 2378
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Cis-1,2-Dichloroethylene 2380
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Xylenes, Total 2955
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Dichloromethane 2964
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- O-Dichlorobenzene 2968
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- P-Dichlorobenzene 2969
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Vinyl Chloride 2976
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1-Dichloroethylene 2977
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trans-1,2-Dichloroethylene 2979
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloroethane 2980
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,1-Trichloroethane 2981
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Carbon Tetrachloride 2982
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloropropane 2983
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trichloroethylene 2984
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,2-Trichloroethane 2985
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Tetrachloroethylene 2987
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Chlorobenzene 2989
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Benzene 2990
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Toluene 2991
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Ethylbenzene 2992
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Styrene 2996
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
Collected
Jul 23, 2002

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
020724-013IN

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Barium 1010 EPA method 200.8
  
  Result
  0.005 mg/l
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0001 mg/l Minimum Reporting Level
- Chromium 1020 EPA method 200.8
  
  Result
  0.007 mg/l
- Fluoride 1025 EPA method 300.0
  
  Result
  0.898 mg/l
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.005 mg/l Minimum Reporting Level
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Sulfate 1055 EPA method 300.0
  
  Result
  18.7 mg/l
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0003 mg/l Minimum Reporting Level
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Feb 19, 2002

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
020220-013CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2002 – Dec 31, 2004
- Cyanide 1024 EPA method 335.4
  
  Result
  Not detected below 0.01 mg/l Minimum Reporting Level
Collected
Feb 5, 2002

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
020206-041CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2002 – Dec 31, 2004
- Cyanide 1024 EPA method 335.4
  
  Result
  Not detected below 0.01 mg/l Minimum Reporting Level

Routine (5).