Chemical and radiological sample results

MS0330008 , Town of Prentiss

19 of the 58 analytes this system has been tested for have been detected at least once, across 157 samples on record.

The other 39 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 157 samples on record, detections range from September 24, 2003 to July 9, 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 Prentiss, 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	60 of 60 results	Jul 24, 2007	Aug 22, 2023
Nitrate-Nitrite 1038	Inorganic Chemical	23 of 23 results	May 17, 2004	Jul 9, 2026
Nitrate 1040	Inorganic Chemical	23 of 23 results	May 17, 2004	Jul 9, 2026
TTHM 2950	Organic Chemical	19 of 21 results	Jun 14, 2004	Dec 17, 2025
Chloroform 2941	Organic Chemical	14 of 16 results	Aug 8, 2007	Dec 17, 2025
Lead 1030	Inorganic Chemical	14 of 60 results	Jul 24, 2007	Sep 10, 2020
Bromodichloromethane 2943	Organic Chemical	11 of 16 results	Sep 22, 2009	Dec 17, 2025
Barium 1010	Inorganic Chemical	10 of 10 results	Sep 24, 2003	Feb 25, 2025
Fluoride 1025	Inorganic Chemical	9 of 10 results	Sep 24, 2003	May 17, 2022
Dibromochloromethane 2944	Organic Chemical	7 of 16 results	Sep 22, 2009	Oct 22, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	5 of 22 results	Sep 22, 2009	May 24, 2023
Gross Alpha, Incl. Radon & U 4002	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 17, 2012
Combined Radium (-226 & -228) 4010	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 17, 2012
Radium-226 4020	Radionuclide	5 of 5 results	Dec 12, 2011	Jul 17, 2012
Sodium 1052	Inorganic Chemical	3 of 3 results	Sep 17, 2019	Feb 4, 2025
Monobromoacetic Acid 2453	Organic Chemical	2 of 16 results	Aug 6, 2019	Sep 8, 2020
Dichloroacetic Acid 2451	Organic Chemical	2 of 16 results	Jun 4, 2019	Aug 6, 2019
Dibromoacetic Acid 2454	Organic Chemical	1 of 16 results	Jun 4, 2019	Jun 4, 2019
Nickel 1036	Inorganic Chemical	1 of 10 results	Feb 23, 2004	Feb 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 31–40 of 157 samples, newest first — collected June 8, 2021 to May 24, 2023. The summary above covers all 157.

42 results from the 10 samples listed here: 8 detected, 34 not detected. Across the whole record it is 219 of 674. 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 Town of Prentiss, every result from 31 to 40 of 157 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 May 24, 2023 14:24 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-230525-003 Laboratory MSDH Lab
2.08 ug/l , sample collected May 24, 2023 14:24, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Jun 7, 2022 14:40 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample VO-220608-008 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, 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 Jun 7, 2022 14:40, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Collected May 17, 2022 14:56 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample IN-220518-008 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Arsenic 1005 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
0.0155 mg/l , sample collected May 17, 2022 14:56, sampling point TF080	Barium 1010 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Cadmium 1015 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Chromium 1020 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
0.989 mg/l , sample collected May 17, 2022 14:56, sampling point TF080	Fluoride 1025 EPA method QC 10-109-12-2-A	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Mercury 1035 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Selenium 1045 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Antimony, Total 1074 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Beryllium, Total 1075 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:56, sampling point TF080	Thallium, Total 1085 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Collected Mar 23, 2022 15:32 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-220324-002 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 23, 2022 15:32, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Mar 23, 2022 15:30 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-220324-002 Laboratory MSDH Lab
4.4 ug/l , sample collected Mar 23, 2022 15:30, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected Feb 8, 2022 14:48 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NA-220209-044 Laboratory MSDH Lab
3.21 mg/l , sample collected Feb 8, 2022 14:48, sampling point TF080	Sodium 1052 EPA method 200.7	Not recorded
Collected Feb 8, 2022 14:47 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-220209-051 Laboratory MSDH Lab
0.512 mg/l , sample collected Feb 8, 2022 14:47, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
0.512 mg/l , sample collected Feb 8, 2022 14:47, 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 Feb 8, 2022 14:47, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Collected Dec 14, 2021 14:17 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-211215-005 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 14, 2021 14:17, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Dec 14, 2021 14:15 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-211215-004 Laboratory MSDH Lab
3.55 ug/l , sample collected Dec 14, 2021 14:15, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected Jun 8, 2021 15:38 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample CN-210609-012 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 8, 2021 15:38, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2020 – Dec 31, 2022

Collected
May 24, 2023 14:24

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-230525-003

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  2.08 ug/l
Collected
Jun 7, 2022 14:40

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
VO-220608-008

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
May 17, 2022 14:56

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
IN-220518-008

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Barium 1010 EPA method 200.8
  
  Result
  0.0155 mg/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Chromium 1020 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.989 mg/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2022
Collected
Mar 23, 2022 15:32

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-220324-002

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
Mar 23, 2022 15:30

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-220324-002

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  4.4 ug/l
Collected
Feb 8, 2022 14:48

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NA-220209-044

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  3.21 mg/l
Collected
Feb 8, 2022 14:47

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-220209-051

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2022 – Dec 31, 2022
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  0.512 mg/l
- Nitrate 1040 EPA method QC10107041C
  
  Result
  0.512 mg/l
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Dec 14, 2021 14:17

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-211215-005

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
Dec 14, 2021 14:15

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-211215-004

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  3.55 ug/l
Collected
Jun 8, 2021 15:38

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
CN-210609-012

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

Routine (10).