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.
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 |
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 81–90 of 224 samples, newest first — collected July 6, 2017 to September 18, 2018. The summary above covers all 224.
26 results from the 10 samples listed here: 12 detected, 14 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Sep 18, 2018 11:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:00, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:00, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:00, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:20, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:20, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 08:20, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| 0.6982 mg/l , sample collected Jul 6, 2017 08:34, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0005 mg/l , sample collected Jul 6, 2017 08:34, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0701 mg/l , sample collected Jul 6, 2017 09:48, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0006 mg/l , sample collected Jul 6, 2017 09:48, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.146 mg/l , sample collected Jul 6, 2017 07:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 6, 2017 07:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.3344 mg/l , sample collected Jul 6, 2017 09:33, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 6, 2017 09:33, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.4861 mg/l , sample collected Jul 6, 2017 07:20, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 6, 2017 07:20, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.6903 mg/l , sample collected Jul 6, 2017 08:19, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 6, 2017 08:19, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.4546 mg/l , sample collected Jul 6, 2017 08:48, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0007 mg/l , sample collected Jul 6, 2017 08:48, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
-
- Collected
- Sep 18, 2018 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 180919-006HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.002 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Mar 7, 2018 08:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 180308-026NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
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 7, 2018 08:20
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 180308-025NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
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
- Jul 6, 2017 08:34
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-090PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6982 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Jul 6, 2017 09:48
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-089PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0701 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 6, 2017 07:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-077PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.146 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 6, 2017 09:33
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-073PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3344 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 6, 2017 07:20
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-071PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4861 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 6, 2017 08:19
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-069PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6903 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 6, 2017 08:48
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170707-068PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4546 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
Routine (10).