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
MS0340018 , Sharon Water Works
26 of the 58 analytes this system has been tested for have been detected at least once, across 372 samples on record.
The other 32 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 372 samples on record, detections range from September 24, 2003 to February 24, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 63 of 63 results | Jul 31, 2007 | Aug 22, 2023 |
| Barium 1010 | Inorganic Chemical | 40 of 40 results | Sep 24, 2003 | Feb 24, 2025 |
| Fluoride 1025 | Inorganic Chemical | 39 of 40 results | Sep 24, 2003 | Feb 24, 2025 |
| Lead 1030 | Inorganic Chemical | 39 of 63 results | Jul 31, 2007 | Aug 22, 2023 |
| TTHM 2950 | Organic Chemical | 26 of 30 results | Sep 13, 2004 | May 6, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 25 of 29 results | Sep 13, 2004 | May 6, 2024 |
| Chloroform 2941 | Organic Chemical | 22 of 24 results | Sep 18, 2006 | Sep 9, 2020 |
| Bromodichloromethane 2943 | Organic Chemical | 22 of 24 results | Sep 18, 2006 | Sep 9, 2020 |
| Dibromochloromethane 2944 | Organic Chemical | 20 of 24 results | Sep 18, 2006 | Sep 9, 2020 |
| Dichloroacetic Acid 2451 | Organic Chemical | 19 of 21 results | Jun 30, 2008 | Sep 8, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 19 of 21 results | Jun 30, 2008 | Sep 8, 2020 |
| Chromium 1020 | Inorganic Chemical | 19 of 40 results | Sep 24, 2003 | Mar 25, 2019 |
| Dibromoacetic Acid 2454 | Organic Chemical | 13 of 21 results | Jun 30, 2008 | Jun 23, 2014 |
| Sodium 1052 | Inorganic Chemical | 12 of 12 results | Sep 16, 2019 | Feb 3, 2025 |
| Sulfate 1055 | Inorganic Chemical | 8 of 8 results | Sep 24, 2003 | Feb 23, 2004 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Mar 5, 2012 | Oct 2, 2012 |
| Carbon Tetrachloride 2982 | Organic Chemical | 4 of 49 results | Jul 15, 2019 | Apr 1, 2024 |
| Bromoform 2942 | Organic Chemical | 4 of 24 results | Sep 18, 2006 | Jun 23, 2014 |
| Dichloromethane 2964 | Organic Chemical | 4 of 49 results | Aug 3, 2004 | Sep 9, 2013 |
| Arsenic 1005 | Inorganic Chemical | 4 of 40 results | Feb 23, 2004 | Mar 21, 2005 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 21 results | Sep 8, 2009 | Dec 7, 2009 |
| Xylenes, Total 2955 | Organic Chemical | 3 of 49 results | May 10, 2004 | Nov 2, 2004 |
| Ethylbenzene 2992 | Organic Chemical | 3 of 49 results | May 10, 2004 | Nov 2, 2004 |
| Selenium 1045 | Inorganic Chemical | 3 of 40 results | Feb 23, 2004 | Feb 23, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 21 results | Nov 13, 2017 | Sep 8, 2020 |
| Nickel 1036 | Inorganic Chemical | 1 of 40 results | Apr 15, 2015 | Apr 15, 2015 |
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 11–20 of 372 samples, newest first — collected April 1, 2024 to February 24, 2025. The summary above covers all 372.
36 results from the 10 samples listed here: 7 detected, 29 not detected. Across the whole record it is 422 of 2,220. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:50, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:50, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:50, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 166 mg/l , sample collected Feb 3, 2025 13:15, sampling point TF104 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 175 mg/l , sample collected Feb 3, 2025 13:35, sampling point TF103 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 114 mg/l , sample collected Feb 3, 2025 13:55, sampling point TF102 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 160 mg/l , sample collected Feb 3, 2025 13:00, sampling point TF101 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 5.49 ug/l , sample collected May 6, 2024 13:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 4.51 ug/l , sample collected May 6, 2024 13:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| 0.578 ug/l , sample collected Apr 1, 2024 13:20, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 1, 2024 13:20, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
-
- Collected
- Feb 24, 2025 12:50
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-250225-048
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Feb 24, 2025 12:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-250225-046
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Feb 24, 2025 12:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-250225-047
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Feb 3, 2025 13:15
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- NA-250204-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 166 mg/l
-
- Collected
- Feb 3, 2025 13:35
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NA-250204-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 175 mg/l
-
- Collected
- Feb 3, 2025 13:55
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NA-250204-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 114 mg/l
-
- Collected
- Feb 3, 2025 13:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-250204-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 160 mg/l
-
- Collected
- May 6, 2024 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-240507-011
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 5.49 ug/l
-
- Collected
- May 6, 2024 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-240507-011
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 4.51 ug/l
-
- Collected
- Apr 1, 2024 13:20
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- VO-240402-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
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
- 0.578 ug/l
-
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
Routine (10).