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 121–130 of 224 samples, newest first — collected July 11, 2012 to August 7, 2013. The summary above covers all 224.
33 results from the 10 samples listed here: 13 detected, 20 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 |
|---|---|---|
|
||
| 1.36 ug/l , sample collected Aug 7, 2013 01:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 3 ug/l , sample collected Aug 7, 2013 01:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2.66 ug/l , sample collected Aug 7, 2013 01:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 5.15 ug/l , sample collected Aug 7, 2013 01:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 12 ug/l , sample collected Aug 7, 2013 01:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Aug 7, 2013 01:10, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 27, 2013 12:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 27, 2013 12:30, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2013 12:30, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 19, 2012 11:27, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 19, 2012 11:00, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 13:10, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.7 pci/l , sample collected Jul 12, 2012 13:10, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.7 pci/l , sample collected Jul 12, 2012 13:10, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 13:10, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.9 pci/l , sample collected Jul 12, 2012 12:40, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 12:40, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.242 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 12:40, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Jul 12, 2012 12:40, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 08:00, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.7 pci/l , sample collected Jul 11, 2012 08:00, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.7 pci/l , sample collected Jul 11, 2012 08:00, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.23 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 08:00, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.9 pci/l , sample collected Jul 11, 2012 08:30, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 08:30, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.242 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 08:30, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 08:30, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 11, 2012 08:30, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
-
- Collected
- Aug 7, 2013 01:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130808-003TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.36 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 3 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 2.66 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 5.15 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 12 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Aug 7, 2013 01:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130808-003HA
- 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, 2011 – Dec 31, 2013
-
- Collected
- Feb 27, 2013 12:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 130228-079NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 19, 2012 11:27
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120920-012CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Sep 19, 2012 11:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120920-011CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Jul 12, 2012 13:10
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 201211120079
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.7 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.23 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 12, 2012 12:40
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 201211120078
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.9 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.26 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.242 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.26 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 11, 2012 08:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120712-005
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.7 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.23 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 11, 2012 08:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120712-004
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.9 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.26 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.242 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.26 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 11, 2012 08:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120712-004RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).