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
MS0530017 , Rock Hill Water Association
16 of the 57 analytes this system has been tested for have been detected at least once, across 215 samples on record.
The other 41 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 215 samples on record, detections range from October 13, 2003 to March 17, 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 | 64 of 65 results | Aug 21, 2007 | Sep 11, 2023 |
| Lead 1030 | Inorganic Chemical | 19 of 65 results | Aug 21, 2007 | Sep 11, 2023 |
| Barium 1010 | Inorganic Chemical | 15 of 15 results | Oct 13, 2003 | Mar 17, 2025 |
| Fluoride 1025 | Inorganic Chemical | 11 of 16 results | Oct 13, 2003 | Mar 17, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Arsenic 1005 | Inorganic Chemical | 8 of 15 results | Mar 15, 2004 | Mar 17, 2025 |
| Chromium 1020 | Inorganic Chemical | 8 of 15 results | Oct 13, 2003 | Apr 28, 2020 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 10 results | Dec 7, 2011 | Jul 11, 2012 |
| TTHM 2950 | Organic Chemical | 4 of 19 results | Aug 27, 2007 | Sep 9, 2024 |
| Nickel 1036 | Inorganic Chemical | 3 of 15 results | Mar 15, 2004 | Mar 31, 2014 |
| Selenium 1045 | Inorganic Chemical | 3 of 15 results | Mar 15, 2004 | Mar 20, 2006 |
| Bromoform 2942 | Organic Chemical | 2 of 14 results | Sep 9, 2024 | Sep 9, 2024 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 23, 2019 | Sep 23, 2019 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 31 results | Feb 23, 2010 | Apr 18, 2011 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 1 of 19 results | Jun 21, 2010 | Jun 21, 2010 |
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 131–140 of 215 samples, newest first — collected April 23, 2012 to July 11, 2012. The summary above covers all 215.
28 results from the 10 samples listed here: 12 detected, 16 not detected. Across the whole record it is 162 of 1,293. 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 |
|---|---|---|
|
||
| 0.7 pci/l , sample collected Jul 11, 2012 16:00, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.2 pci/l , sample collected Jul 11, 2012 16:00, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.2 pci/l , sample collected Jul 11, 2012 16:00, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.55 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 16:00, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1 pci/l , sample collected Jul 11, 2012 15:10, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:10, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.216 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:10, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 15:10, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.7 pci/l , sample collected Jul 10, 2012 13:42, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.2 pci/l , sample collected Jul 10, 2012 13:42, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.2 pci/l , sample collected Jul 10, 2012 13:42, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.55 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:42, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1 pci/l , sample collected Jul 10, 2012 13:10, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:10, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.216 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:10, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:10, sampling point TF101 | 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 10, 2012 13:43, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2012 13:12, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.7 pci/l , sample collected Apr 23, 2012 13:05, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.2 pci/l , sample collected Apr 23, 2012 13:05, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.2 pci/l , sample collected Apr 23, 2012 13:05, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.55 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 13:05, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 1 pci/l , sample collected Apr 23, 2012 14:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.216 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.64 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 14:15, sampling point TF101 | 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 23, 2012 13:15, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 23, 2012 14:26, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
-
- Collected
- Jul 11, 2012 16:00
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 201210050195
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.2 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.2 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.55 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 11, 2012 15:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201210050194
- 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 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.216 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 10, 2012 13:42
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120711-109
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.2 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.2 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.55 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 10, 2012 13:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120711-081
- 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 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.216 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 10, 2012 13:43
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120711-109RU
- 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 10, 2012 13:12
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120711-081RU
- 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
- Apr 23, 2012 13:05
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120424-156
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.2 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.2 pci/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.55 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 23, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120424-113
- 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 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.216 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.64 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 23, 2012 13:15
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120424-156RU
- 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
- Apr 23, 2012 14:26
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120424-113RU
- 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
Routine (10).