Chemical and radiological sample results

MS0140003 , Town of Coahoma

28 of the 58 analytes this system has been tested for have been detected at least once, across 302 samples on record.

The other 30 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 302 samples on record, detections range from December 8, 1993 to February 10, 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 Town of Coahoma, 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
TTHM 2950	Organic Chemical	74 of 85 results	May 17, 2004	Feb 10, 2026
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	62 of 83 results	May 17, 2004	Nov 18, 2025
Lead 1030	Inorganic Chemical	62 of 75 results	Dec 8, 1993	Sep 9, 2025
Copper, Free 1022	Inorganic Chemical	56 of 75 results	Dec 8, 1993	Sep 9, 2025
Bromoform 2942	Organic Chemical	50 of 64 results	Sep 11, 2006	Feb 10, 2026
Dibromochloromethane 2944	Organic Chemical	50 of 64 results	Sep 11, 2006	Feb 10, 2026
Bromodichloromethane 2943	Organic Chemical	49 of 64 results	Sep 11, 2006	Feb 10, 2026
Chloroform 2941	Organic Chemical	49 of 64 results	Sep 11, 2006	Jul 30, 2024
Dibromoacetic Acid 2454	Organic Chemical	42 of 62 results	Aug 27, 2007	Nov 18, 2025
Dichloroacetic Acid 2451	Organic Chemical	25 of 62 results	Aug 27, 2007	Nov 18, 2025
Trichloroacetic Acid 2452	Organic Chemical	19 of 62 results	Aug 27, 2007	Nov 18, 2025
Arsenic 1005	Inorganic Chemical	12 of 12 results	May 7, 2002	Feb 4, 2025
Barium 1010	Inorganic Chemical	12 of 12 results	May 7, 2002	Feb 4, 2025
Fluoride 1025	Inorganic Chemical	12 of 12 results	May 7, 2002	Feb 4, 2025
Selenium 1045	Inorganic Chemical	10 of 12 results	May 7, 2002	May 9, 2022
Monobromoacetic Acid 2453	Organic Chemical	9 of 62 results	May 11, 2011	Nov 18, 2025
Chromium 1020	Inorganic Chemical	7 of 12 results	Jan 28, 2004	Feb 4, 2025
Nickel 1036	Inorganic Chemical	3 of 12 results	Mar 19, 2008	Feb 4, 2025
Monochloroacetic Acid 2450	Organic Chemical	3 of 62 results	Feb 26, 2019	Dec 18, 2023
Sodium 1052	Inorganic Chemical	2 of 2 results	Feb 2, 2021	Oct 14, 2024
Thallium, Total 1085	Inorganic Chemical	2 of 12 results	Feb 28, 2005	Apr 20, 2020
Gross Alpha, Excl. Radon & U 4000	Radionuclide	1 of 2 results	Dec 6, 2011	Dec 6, 2011
Combined Radium (-226 & -228) 4010	Radionuclide	1 of 2 results	Dec 6, 2011	Dec 6, 2011
Radium-228 4030	Radionuclide	1 of 2 results	Dec 6, 2011	Dec 6, 2011
Gross Alpha Particle Activity 4109	Radionuclide	1 of 6 results	Dec 6, 2011	Dec 6, 2011
Mercury 1035	Inorganic Chemical	1 of 12 results	Feb 28, 2005	Feb 28, 2005
Xylenes, Total 2955	Organic Chemical	1 of 13 results	Oct 14, 2004	Oct 14, 2004
Beryllium, Total 1075	Inorganic Chemical	1 of 12 results	May 7, 2002	May 7, 2002

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 61–70 of 302 samples, newest first — collected December 1, 2020 to April 19, 2021. The summary above covers all 302.

46 results from the 10 samples listed here: 17 detected, 29 not detected. Across the whole record it is 617 of 1,389. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Total Haloacetic Acids (Haa5) is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 2 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 Town of Coahoma, every result from 61 to 70 of 302 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 Apr 19, 2021 12:25 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 210420-002VO Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Dichloromethane 2964 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Benzene 2990 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Toluene 2991 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 19, 2021 12:25, sampling point TF102	Styrene 2996 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Collected Apr 19, 2021 12:23 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample CN-210420-015 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 19, 2021 12:23, sampling point TF102	Cyanide 1024 EPA method QC10204001X	Jan 1, 2020 – Dec 31, 2022
Collected Feb 22, 2021 13:00 Sampling point SMT Location withheld Sample type Routine Lab sample HA-210223-004 Laboratory MSDH Lab
16.3 ug/l , sample collected Feb 22, 2021 13:00, sampling point SMT	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2021 – Mar 31, 2021
Collected Feb 22, 2021 13:00 Sampling point SMT Location withheld Sample type Routine Lab sample TH-210223-004 Laboratory MSDH Lab
80.6 ug/l , sample collected Feb 22, 2021 13:00, sampling point SMT	TTHM 2950 EPA method 524.2	Jan 1, 2021 – Mar 31, 2021
Collected Feb 22, 2021 12:45 Sampling point SMH Location withheld Sample type Routine Lab sample TH-210223-003 Laboratory MSDH Lab
48.4 ug/l , sample collected Feb 22, 2021 12:45, sampling point SMH	TTHM 2950 EPA method 524.2	Jan 1, 2021 – Mar 31, 2021
Collected Feb 2, 2021 11:45 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample NA-210203-001 Laboratory MSDH Lab
141 mg/l , sample collected Feb 2, 2021 11:45, sampling point TF102	Sodium 1052 EPA method 200.7	Not recorded
Collected Feb 2, 2021 12:25 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample NI-210203-007 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 2, 2021 12:25, 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 Feb 2, 2021 12:25, 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 Feb 2, 2021 12:25, sampling point TF102	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Dec 1, 2020 13:45 Sampling point SMT Location withheld Sample type Routine Lab sample 201202-002HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 13:45, sampling point SMT	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 13:45, sampling point SMT	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2020 – Dec 31, 2020
Collected Dec 1, 2020 13:30 Sampling point SMH Location withheld Sample type Routine Lab sample 201202-001HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 13:30, sampling point SMH	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2020 13:30, sampling point SMH	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.001 mg/l , sample collected Dec 1, 2020 13:30, sampling point SMH	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 13:30, sampling point SMH	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Dec 1, 2020 13:30, sampling point SMH	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Dec 1, 2020 13:30, sampling point SMH	Total Haloacetic Acids (Haa5) 2456	Oct 1, 2020 – Dec 31, 2020
Collected Dec 1, 2020 13:45 Sampling point SMT Location withheld Sample type Routine Lab sample 201202-002TH Laboratory MSDH Lab
2.41 ug/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Chloroform 2941 EPA method 524.2	Not recorded
39.4 ug/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Bromoform 2942 EPA method 524.2	Not recorded
8.3 ug/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Bromodichloromethane 2943 EPA method 524.2	Not recorded
30.2 ug/l , sample collected Dec 1, 2020 13:45, sampling point SMT	Dibromochloromethane 2944 EPA method 524.2	Not recorded
80.3 ug/l , sample collected Dec 1, 2020 13:45, sampling point SMT	TTHM 2950	Oct 1, 2020 – Dec 31, 2020

Collected
Apr 19, 2021 12:25

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
210420-002VO

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2016 – Dec 31, 2021
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Apr 19, 2021 12:23

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
CN-210420-015

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2022
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Feb 22, 2021 13:00

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
HA-210223-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Mar 31, 2021
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  16.3 ug/l
Collected
Feb 22, 2021 13:00

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
TH-210223-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Mar 31, 2021
- TTHM 2950 EPA method 524.2
  
  Result
  80.6 ug/l
Collected
Feb 22, 2021 12:45

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
TH-210223-003

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Mar 31, 2021
- TTHM 2950 EPA method 524.2
  
  Result
  48.4 ug/l
Collected
Feb 2, 2021 11:45

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
NA-210203-001

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  141 mg/l
Collected
Feb 2, 2021 12:25

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
NI-210203-007

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Dec 1, 2020 13:45

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
201202-002HA

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
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.001 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
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.01 mg/l
  
  Monitoring period
  Oct 1, 2020 – Dec 31, 2020
Collected
Dec 1, 2020 13:30

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
201202-001HA

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
  0.001 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.001 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
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.01 mg/l
  
  Monitoring period
  Oct 1, 2020 – Dec 31, 2020
Collected
Dec 1, 2020 13:45

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
201202-002TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  2.41 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  39.4 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  8.3 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  30.2 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  80.3 ug/l
  
  Monitoring period
  Oct 1, 2020 – Dec 31, 2020

Routine (10).