Chemical and radiological sample results

MS0600007 , City of Marks

38 of the 72 analytes this system has been tested for have been detected at least once, across 258 samples on record.

The other 34 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 258 samples on record, detections range from October 20, 2003 to July 2, 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 Marks, 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	168 of 168 results	Aug 7, 2007	Jul 2, 2025
Lead 1030	Inorganic Chemical	94 of 169 results	Aug 7, 2007	Jul 2, 2025
Barium 1010	Inorganic Chemical	10 of 10 results	Oct 20, 2003	Apr 14, 2025
Fluoride 1025	Inorganic Chemical	10 of 12 results	Oct 20, 2003	Apr 14, 2025
Nitrate-Nitrite 1038	Inorganic Chemical	9 of 21 results	Jun 7, 2004	Mar 21, 2012
Nitrate 1040	Inorganic Chemical	9 of 21 results	Jun 7, 2004	Mar 21, 2012
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	7 of 18 results	Sep 4, 2007	Aug 23, 2023
TTHM 2950	Organic Chemical	7 of 18 results	Sep 4, 2007	Aug 23, 2023
Chromium 1020	Inorganic Chemical	6 of 10 results	Apr 11, 2005	Apr 14, 2025
Gross Alpha, Incl. Radon & U 4002	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 19, 2012
Sodium 1052	Inorganic Chemical	4 of 4 results	May 20, 2010	Dec 13, 2023
Nickel 1036	Inorganic Chemical	3 of 10 results	Apr 11, 2005	Apr 14, 2025
Sulfate 1055	Inorganic Chemical	3 of 3 results	Oct 20, 2003	May 20, 2010
Dichloroacetic Acid 2451	Organic Chemical	2 of 12 results	Sep 6, 2013	Dec 7, 2016
Chloroform 2941	Organic Chemical	2 of 13 results	Sep 5, 2013	Dec 7, 2016
Calcium 1016	Inorganic Chemical	2 of 2 results	May 20, 2010	May 20, 2010
Chloride 1017	Inorganic Chemical	2 of 2 results	May 20, 2010	May 20, 2010
Iron 1028	Inorganic Chemical	2 of 2 results	May 20, 2010	May 20, 2010
Magnesium 1031	Inorganic Chemical	2 of 2 results	May 20, 2010	May 20, 2010
Residue, Total, Filterable 1057	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
Carbon Dioxide 1901	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
Hardness, Total (As Caco3) 1915	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
Alkalinity, Total 1927	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
Calculated Sodium NACA	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
PH, Field Result PHFD	Water Quality	2 of 2 results	May 20, 2010	May 20, 2010
Nitrite 1041	Inorganic Chemical	1 of 21 results	Oct 13, 2021	Oct 13, 2021
Monochloroacetic Acid 2450	Organic Chemical	1 of 12 results	Sep 6, 2013	Sep 6, 2013
Trichloroacetic Acid 2452	Organic Chemical	1 of 12 results	Sep 6, 2013	Sep 6, 2013
Monobromoacetic Acid 2453	Organic Chemical	1 of 12 results	Sep 6, 2013	Sep 6, 2013
Bromodichloromethane 2943	Organic Chemical	1 of 13 results	Sep 5, 2013	Sep 5, 2013
Manganese 1032	Inorganic Chemical	1 of 1 result	May 20, 2010	May 20, 2010
Potassium 1042	Inorganic Chemical	1 of 1 result	May 20, 2010	May 20, 2010
Alkalinity, Caco3 Stability 1067	Water Quality	1 of 1 result	May 20, 2010	May 20, 2010
Color 1905	Water Quality	1 of 1 result	May 20, 2010	May 20, 2010
Iron, Field Result FEFD	Inorganic Chemical	1 of 1 result	May 20, 2010	May 20, 2010
Cadmium 1015	Inorganic Chemical	1 of 10 results	Apr 11, 2005	Apr 11, 2005
Selenium 1045	Inorganic Chemical	1 of 10 results	Apr 11, 2005	Apr 11, 2005
Dichloromethane 2964	Organic Chemical	1 of 7 results	Aug 23, 2004	Aug 23, 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 41–50 of 258 samples, newest first — collected June 23, 2021 to September 14, 2022. The summary above covers all 258.

34 results from the 10 samples listed here: 5 detected, 29 not detected. Across the whole record it is 372 of 874. 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 Marks, every result from 41 to 50 of 258 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 Sep 14, 2022 17:15 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample VO-220915-014 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, 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 Sep 14, 2022 17:15, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Collected Aug 31, 2022 18:40 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample CN-220901-017 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 31, 2022 18:40, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2020 – Dec 31, 2022
Collected Jun 21, 2022 12:15 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-220622-018 Laboratory MSDH Lab
3.51 ug/l , sample collected Jun 21, 2022 12:15, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Jun 21, 2022 12:00 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-220622-018 Laboratory MSDH Lab
13 ug/l , sample collected Jun 21, 2022 12:00, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected Mar 16, 2022 17:30 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-220317-008 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2022 17:30, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2022 17:30, 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 16, 2022 17:30, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Collected Nov 17, 2021 12:40 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-211118-019 Laboratory MSDH Lab
8.5 ug/l , sample collected Nov 17, 2021 12:40, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Nov 17, 2021 12:30 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-211118-021 Laboratory MSDH Lab
7.39 ug/l , sample collected Nov 17, 2021 12:30, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected Oct 13, 2021 17:38 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample RU-211014-068 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 13, 2021 17:38, sampling point TF080	Combined Uranium 4006 EPA method 200.8	Jan 1, 2013 – Dec 31, 2021
Collected Oct 13, 2021 17:30 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-211014-007 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 13, 2021 17:30, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 13, 2021 17:30, sampling point TF080	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
0.0221 mg/l , sample collected Oct 13, 2021 17:30, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Jun 23, 2021 14:15 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample RU-210624-033 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2021 14:15, sampling point TF080	Combined Uranium 4006 EPA method 200.8	Jan 1, 2013 – Dec 31, 2021

Collected
Sep 14, 2022 17:15

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
VO-220915-014

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
Aug 31, 2022 18:40

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
CN-220901-017

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
Jun 21, 2022 12:15

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-220622-018

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  3.51 ug/l
Collected
Jun 21, 2022 12:00

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-220622-018

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  13 ug/l
Collected
Mar 16, 2022 17:30

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-220317-008

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2022 – Dec 31, 2022
- 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
Nov 17, 2021 12:40

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-211118-019

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  8.5 ug/l
Collected
Nov 17, 2021 12:30

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-211118-021

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  7.39 ug/l
Collected
Oct 13, 2021 17:38

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
RU-211014-068

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 13, 2021 17:30

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-211014-007

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
  0.0221 mg/l
Collected
Jun 23, 2021 14:15

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
RU-210624-033

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

Routine (10).