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
MS0190004 , Providence Water Association
21 of the 58 analytes this system has been tested for have been detected at least once, across 212 samples on record.
The other 37 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 212 samples on record, detections range from October 18, 1993 to June 4, 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 | 82 of 111 results | Oct 18, 1993 | Jun 4, 2025 |
| Lead 1030 | Inorganic Chemical | 48 of 111 results | Oct 18, 1993 | Jun 4, 2025 |
| Barium 1010 | Inorganic Chemical | 13 of 13 results | May 21, 2002 | Feb 4, 2025 |
| Nickel 1036 | Inorganic Chemical | 12 of 13 results | May 21, 2002 | Feb 4, 2025 |
| Fluoride 1025 | Inorganic Chemical | 11 of 13 results | Sep 10, 2003 | Feb 4, 2025 |
| TTHM 2950 | Organic Chemical | 10 of 10 results | May 19, 2004 | Feb 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 9 results | Oct 24, 2005 | Feb 11, 2025 |
| Chromium 1020 | Inorganic Chemical | 8 of 13 results | May 21, 2002 | Feb 4, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 6 results | Sep 11, 2006 | Jul 24, 2018 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 6 results | Sep 11, 2006 | Jul 24, 2018 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 10, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 4 results | Sep 17, 2008 | Jul 24, 2018 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | May 21, 2002 | Feb 4, 2004 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 18, 2019 | Jan 29, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 4 results | Jul 9, 2012 | Jul 24, 2018 |
| Selenium 1045 | Inorganic Chemical | 3 of 13 results | May 21, 2002 | Feb 28, 2005 |
| Cadmium 1015 | Inorganic Chemical | 2 of 13 results | May 21, 2002 | Feb 28, 2005 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 22 results | Apr 13, 2004 | Jul 14, 2004 |
| Styrene 2996 | Organic Chemical | 1 of 22 results | Oct 18, 2005 | Oct 18, 2005 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 23 results | May 12, 2004 | May 12, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 of 23 results | May 12, 2004 | May 12, 2004 |
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 61–70 of 212 samples, newest first — collected February 14, 2012 to February 10, 2014. The summary above covers all 212.
35 results from the 10 samples listed here: 10 detected, 25 not detected. Across the whole record it is 232 of 1,003. 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 10, 2014 14:49, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 10, 2014 14:49, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 10, 2014 14:49, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2013 12:33, 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 Jan 28, 2013 12:33, 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 Jan 28, 2013 12:33, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 1 pci/l , sample collected Jul 10, 2012 02:24, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 02:24, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.272 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 02:24, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 02:24, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1 pci/l , sample collected Jul 9, 2012 14:32, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:32, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.272 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:32, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:32, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 42 ug/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.72 ug/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 48 ug/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 14:32, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.026 mg/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.024 mg/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.05 mg/l , sample collected Jul 9, 2012 03:11, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 1 pci/l , sample collected Apr 17, 2012 12:55, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Apr 17, 2012 12:55, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.272 pci/l Minimum Reporting Level , sample collected Apr 17, 2012 12:55, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Apr 17, 2012 12:55, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 17, 2012 12:55, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 1 pci/l , sample collected Feb 14, 2012 12:30, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 12:30, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.272 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 12:30, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 12:30, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
-
- Collected
- Feb 10, 2014 14:49
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 140211-031NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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
- Jan 28, 2013 12:33
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 130129-042NI
- 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
- Jul 10, 2012 02:24
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 201210180222
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.272 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 9, 2012 14:32
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120710-060
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.272 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 9, 2012 03:11
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120710-005TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 42 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.72 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 48 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Jul 9, 2012 14:32
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120710-060RU
- 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
-
- Collected
- Jul 9, 2012 03:11
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 120710-005HA
- 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
- 0.026 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.024 mg/l
- 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
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.05 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Apr 17, 2012 12:55
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120418-024
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.272 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 17, 2012 12:55
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120418-024RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 14, 2012 12:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120215-029
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.272 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
Routine (10).