Chemical and radiological sample results

MS0460003 , City of Columbia

38 of the 73 analytes this system has been tested for have been detected at least once, across 396 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 396 samples on record, detections range from October 8, 2003 to March 27, 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 Columbia, 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	300 of 301 results	Jun 15, 2004	Aug 17, 2024
Lead 1030	Inorganic Chemical	116 of 301 results	Sep 6, 2007	Aug 17, 2024
Nitrate-Nitrite 1038	Inorganic Chemical	21 of 22 results	Jun 7, 2004	Mar 27, 2025
Nitrate 1040	Inorganic Chemical	21 of 22 results	Jun 7, 2004	Mar 27, 2025
Barium 1010	Inorganic Chemical	9 of 9 results	Oct 8, 2003	Mar 27, 2025
Fluoride 1025	Inorganic Chemical	8 of 10 results	Oct 8, 2003	Apr 16, 2019
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	6 of 20 results	Aug 21, 2007	May 9, 2023
TTHM 2950	Organic Chemical	5 of 20 results	Jul 14, 2004	Sep 9, 2019
Gross Alpha, Incl. Radon & U 4002	Radionuclide	5 of 5 results	Mar 15, 2012	Oct 12, 2012
Chromium 1020	Inorganic Chemical	4 of 9 results	Jul 11, 2012	Mar 27, 2025
Nickel 1036	Inorganic Chemical	3 of 9 results	Mar 8, 2004	Mar 27, 2025
Sodium 1052	Inorganic Chemical	3 of 3 results	Jun 16, 2017	Feb 26, 2025
Chloroform 2941	Organic Chemical	3 of 15 results	Aug 21, 2007	Sep 9, 2019
Monobromoacetic Acid 2453	Organic Chemical	2 of 14 results	Sep 18, 2019	Sep 30, 2020
Bromodichloromethane 2943	Organic Chemical	2 of 15 results	Aug 21, 2007	Dec 19, 2016
Dibromochloromethane 2944	Organic Chemical	2 of 15 results	Aug 21, 2007	Dec 19, 2016
Gross Alpha, Excl. Radon & U 4000	Radionuclide	2 of 2 results	Sep 16, 2009	Mar 15, 2010
Combined Radium (-226 & -228) 4010	Radionuclide	2 of 7 results	Sep 16, 2009	Mar 15, 2010
Radium-226 4020	Radionuclide	2 of 7 results	Sep 16, 2009	Mar 15, 2010
Gross Beta Particle Activity 4100	Radionuclide	2 of 2 results	Sep 16, 2009	Mar 15, 2010
Gross Alpha Particle Activity 4109	Radionuclide	2 of 2 results	Sep 16, 2009	Mar 15, 2010
Monochloroacetic Acid 2450	Organic Chemical	1 of 14 results	Sep 18, 2019	Sep 18, 2019
Dichloroacetic Acid 2451	Organic Chemical	1 of 14 results	Sep 18, 2019	Sep 18, 2019
Calcium 1016	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Chloride 1017	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Iron 1028	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Magnesium 1031	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Manganese 1032	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Potassium 1042	Inorganic Chemical	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Residue, Total, Filterable 1057	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Carbon Dioxide 1901	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Color 1905	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Hardness, Total (As Caco3) 1915	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Alkalinity, Total 1927	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Calculated Sodium NACA	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
PH, Field Result PHFD	Water Quality	1 of 1 result	Jun 16, 2017	Jun 16, 2017
Selenium 1045	Inorganic Chemical	1 of 9 results	Jan 13, 2010	Jan 13, 2010
Radium-228 4030	Radionuclide	1 of 7 results	Sep 16, 2009	Sep 16, 2009

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 41–50 of 396 samples, newest first — collected September 24, 2021 to July 20, 2022. The summary above covers all 396.

33 results from the 10 samples listed here: 6 detected, 27 not detected. Across the whole record it is 537 of 1,154. 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 Columbia, every result from 41 to 50 of 396 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 Jul 20, 2022 13:30 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample VO-220721-008 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Dichloromethane 2964 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Benzene 2990 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Toluene 2991 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2022 13:30, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Collected Jun 16, 2022 10:50 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-220617-001 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 16, 2022 10:50, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Jun 16, 2022 10:48 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-220617-001 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 16, 2022 10:48, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected May 24, 2022 14:00 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample CN-220525-004 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 24, 2022 14:00, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2020 – Dec 31, 2022
Collected Mar 2, 2022 15:01 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NA-220303-046 Laboratory MSDH Lab
10.2 mg/l , sample collected Mar 2, 2022 15:01, sampling point TF080	Sodium 1052 EPA method 200.7	Not recorded
Collected Mar 2, 2022 15:00 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-220303-044 Laboratory MSDH Lab
0.244 mg/l , sample collected Mar 2, 2022 15:00, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
0.244 mg/l , sample collected Mar 2, 2022 15:00, sampling point TF080	Nitrate 1040 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 2, 2022 15:00, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Collected Oct 20, 2021 15:20 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample RU-211021-002 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2021 15:20, sampling point TF080	Combined Uranium 4006 EPA method 200.8	Jan 1, 2013 – Dec 31, 2021
Collected Oct 20, 2021 15:10 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-211021-019 Laboratory MSDH Lab
1.63 ug/l , sample collected Oct 20, 2021 15:10, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Oct 20, 2021 15:10 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-211021-019 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 15:10, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected Sep 24, 2021 10:40 Sampling point DS000 Distribution Sample type Routine Lab sample PB-210929-017 Laboratory MSDH Lab
0.244 mg/l , sample collected Sep 24, 2021 10:40, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
1.5 ug/l , sample collected Sep 24, 2021 10:40, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021

Collected
Jul 20, 2022 13:30

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
VO-220721-008

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2017 – Dec 31, 2022
- 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
Jun 16, 2022 10:50

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-220617-001

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Jun 16, 2022 10:48

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-220617-001

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
May 24, 2022 14:00

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
CN-220525-004

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
Mar 2, 2022 15:01

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NA-220303-046

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  10.2 mg/l
Collected
Mar 2, 2022 15:00

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-220303-044

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2022 – Dec 31, 2022
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  0.244 mg/l
- Nitrate 1040 EPA method QC10107041C
  
  Result
  0.244 mg/l
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Oct 20, 2021 15:20

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
RU-211021-002

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2013 – Dec 31, 2021
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Oct 20, 2021 15:10

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-211021-019

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  1.63 ug/l
Collected
Oct 20, 2021 15:10

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-211021-019

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Sep 24, 2021 10:40

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
PB-210929-017

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.244 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  1.5 ug/l

Routine (10).