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
MS0450019 , PRVWSD-Main Harbor
23 of the 56 analytes this system has been tested for have been detected at least once, across 224 samples on record.
The other 33 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 224 samples on record, detections range from October 6, 2003 to February 12, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 | 69 of 69 results | Aug 13, 2007 | Sep 7, 2023 |
| Lead 1030 | Inorganic Chemical | 43 of 69 results | Aug 14, 2007 | Sep 7, 2023 |
| TTHM 2950 | Organic Chemical | 20 of 22 results | Aug 21, 2007 | Feb 12, 2026 |
| Barium 1010 | Inorganic Chemical | 18 of 18 results | Oct 6, 2003 | Mar 11, 2025 |
| Fluoride 1025 | Inorganic Chemical | 18 of 18 results | Oct 6, 2003 | Mar 11, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 15 of 16 results | Sep 28, 2009 | Feb 12, 2026 |
| Chloroform 2941 | Organic Chemical | 14 of 16 results | Aug 7, 2013 | Feb 12, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 14 of 16 results | Sep 28, 2009 | Feb 12, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 13 of 22 results | Aug 21, 2007 | Feb 12, 2026 |
| Bromoform 2942 | Organic Chemical | 13 of 16 results | Sep 28, 2009 | Feb 12, 2026 |
| Dibromoacetic Acid 2454 | Organic Chemical | 10 of 15 results | Sep 28, 2009 | Feb 12, 2026 |
| Chromium 1020 | Inorganic Chemical | 10 of 18 results | Oct 6, 2003 | Nov 23, 2015 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 16, 2019 | Feb 24, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 10 results | Dec 5, 2011 | Jul 12, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 10 results | Dec 5, 2011 | Jul 12, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 10 results | Dec 5, 2011 | Jul 12, 2012 |
| Selenium 1045 | Inorganic Chemical | 4 of 18 results | Mar 8, 2004 | Apr 11, 2005 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Oct 6, 2003 | Mar 8, 2004 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 15 results | Jul 7, 2016 | Feb 12, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 15 results | Jul 7, 2016 | Feb 12, 2026 |
| Nickel 1036 | Inorganic Chemical | 3 of 18 results | Mar 8, 2004 | Feb 3, 2010 |
| Cadmium 1015 | Inorganic Chemical | 2 of 18 results | Apr 11, 2005 | Apr 11, 2005 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 15 results | Sep 14, 2020 | Sep 14, 2020 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 13 samples, newest first — collected February 13, 2025 to February 12, 2026. The summary above covers all 13.
44 results from the 10 samples listed here: 16 detected, 28 not detected. Across the whole record it is 298 of 1,023. 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 1 sampling point 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 12, 2026 08:20, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 1.1 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 1.3 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 12, 2026 08:20, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 1.8 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 4.2 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2026 – Dec 31, 2026 |
| 1.5 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 2 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 5 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 11.5 ug/l , sample collected Feb 12, 2026 08:20, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 16, 2025 07:55, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 16, 2025 08:10, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0075 mg/l , sample collected Mar 11, 2025 09:28, sampling point TF103 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.72 mg/l , sample collected Mar 11, 2025 09:28, sampling point TF103 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:28, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0075 mg/l , sample collected Mar 11, 2025 09:15, sampling point TF102 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.728 mg/l , sample collected Mar 11, 2025 09:15, sampling point TF102 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 09:15, 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 Mar 11, 2025 09:15, 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 Mar 11, 2025 09:15, 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 Mar 11, 2025 09:00, 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 Mar 11, 2025 09:00, 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 Mar 11, 2025 09:00, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 147 mg/l , sample collected Feb 24, 2025 09:50, sampling point TF103 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| 141 mg/l , sample collected Feb 24, 2025 09:40, sampling point TF102 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| 12.1 ug/l , sample collected Feb 13, 2025 07:30, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Feb 12, 2026 08:20
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-180876-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 1.1 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 1.3 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 1.8 ug/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 4.2 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Chloroform 2941 EPA method 524.2
- Result
- 1.5 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 2 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 5 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 11.5 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
- Collected
- Sep 16, 2025 07:55
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250916-036
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 16, 2025 08:10
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- CN-250916-035
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 09:28
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- IN-250311-094
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0075 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.72 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
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, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Mar 11, 2025 09:15
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250311-093
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0075 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.728 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
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, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Mar 11, 2025 09:15
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-250311-078
- 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
- Mar 11, 2025 09:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-250311-077
- 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 09:50
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NA-250225-046
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 147 mg/l
-
- Collected
- Feb 24, 2025 09:40
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NA-250225-045
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 141 mg/l
-
- Collected
- Feb 13, 2025 07:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- HA-250214-005
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 12.1 ug/l
Routine (10).