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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0520005 , Mashulaville Water District Inc

19 of the 57 analytes this system has been tested for have been detected at least once, across 215 samples on record.

The other 38 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 215 samples on record, detections range from March 17, 2004 to March 17, 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 Mashulaville Water District Inc, 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 Aug 7, 2008 Sep 14, 2023
Lead 1030 Inorganic Chemical 31 of 60 results Aug 7, 2008 Sep 14, 2023
Barium 1010 Inorganic Chemical 18 of 18 results Mar 17, 2004 Mar 17, 2025
Fluoride 1025 Inorganic Chemical 18 of 18 results Mar 17, 2004 Mar 17, 2025
Arsenic 1005 Inorganic Chemical 16 of 18 results Mar 17, 2004 Mar 17, 2025
Nickel 1036 Inorganic Chemical 13 of 18 results Nov 15, 2004 Mar 17, 2025
Chromium 1020 Inorganic Chemical 12 of 18 results Dec 19, 2005 Oct 19, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 15, 2011 Jul 20, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 10 of 10 results Dec 15, 2011 Jul 20, 2012
Radium-226 4020 Radionuclide 10 of 10 results Dec 15, 2011 Jul 20, 2012
Radium-228 4030 Radionuclide 10 of 10 results Dec 15, 2011 Jul 20, 2012
Selenium 1045 Inorganic Chemical 8 of 18 results Mar 17, 2004 Mar 17, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 9 results Jun 14, 2007 Mar 13, 2024
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 18, 2019 Mar 4, 2025
TTHM 2950 Organic Chemical 6 of 9 results Jun 14, 2007 Mar 13, 2024
Dibromoacetic Acid 2454 Organic Chemical 3 of 5 results Sep 24, 2009 Jul 23, 2014
Bromoform 2942 Organic Chemical 2 of 6 results Sep 24, 2009 Sep 12, 2011
Xylenes, Total 2955 Organic Chemical 1 of 34 results Jul 18, 2018 Jul 18, 2018
Dichloroacetic Acid 2451 Organic Chemical 1 of 5 results Sep 12, 2011 Sep 12, 2011

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 21–30 of 215 samples, newest first — collected October 19, 2022 to September 14, 2023. The summary above covers all 215.

58 results from the 10 samples listed here: 15 detected, 43 not detected. Across the whole record it is 242 of 1,301. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 4 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 Mashulaville Water District Inc, every result from 21 to 30 of 215 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, 2023 07:00
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-230915-059
Laboratory
MSDH Lab
0.0511 mg/l , sample collected Sep 14, 2023 07:00, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2023 07:00, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 14, 2023 07:30
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-230915-058
Laboratory
MSDH Lab
0.0359 mg/l , sample collected Sep 14, 2023 07:30, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2023 07:30, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 14, 2023 07:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230915-057
Laboratory
MSDH Lab
0.00951 mg/l , sample collected Sep 14, 2023 07:00, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2023 07:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 14, 2023 07:45
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230915-056
Laboratory
MSDH Lab
0.203 mg/l , sample collected Sep 14, 2023 07:45, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2023 07:45, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Apr 4, 2023 13:40
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230405-033
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:40, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:40, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:40, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Apr 4, 2023 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230405-032
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 4, 2023 13:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 27, 2023 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
VO-230228-003
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 27, 2023 13:15, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Oct 19, 2022 13:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-221020-007
Laboratory
MSDH Lab
0.0063 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.199 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0006 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.342 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF102 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 Oct 19, 2022 13:30, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0014 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF102 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 Oct 19, 2022 13:30, sampling point TF102 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 Oct 19, 2022 13:30, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Oct 19, 2022 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-221020-006
Laboratory
MSDH Lab
0.0066 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.2 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0007 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.344 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF101 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 Oct 19, 2022 13:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0014 mg/l , sample collected Oct 19, 2022 13:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 19, 2022 13:30, sampling point TF101 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 Oct 19, 2022 13:30, sampling point TF101 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 Oct 19, 2022 13:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Oct 19, 2022 13:40
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-221020-014
Laboratory
MSDH Lab
11.8 ug/l , sample collected Oct 19, 2022 13:40, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Dec 31, 2024

Routine (10).