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
MS0180022 , S MS Public Water Auth-Rock Hill
19 of the 56 analytes this system has been tested for have been detected at least once, across 281 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 281 samples on record, detections range from May 19, 2004 to August 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 | 113 of 113 results | Jun 26, 2007 | Aug 13, 2024 |
| Lead 1030 | Inorganic Chemical | 69 of 113 results | Jun 26, 2007 | Aug 13, 2024 |
| TTHM 2950 | Organic Chemical | 44 of 45 results | May 19, 2004 | Aug 4, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 42 of 47 results | May 19, 2004 | Aug 6, 2024 |
| Chloroform 2941 | Organic Chemical | 36 of 37 results | Sep 12, 2006 | Aug 4, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 33 of 37 results | Sep 12, 2006 | Aug 4, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 30 of 34 results | Jan 29, 2008 | Aug 6, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 30 of 34 results | Jan 29, 2008 | Aug 6, 2024 |
| Xylenes, Total 2955 | Organic Chemical | 13 of 30 results | Jul 14, 2004 | Jul 13, 2009 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 15, 2004 | Feb 4, 2025 |
| Fluoride 1025 | Inorganic Chemical | 9 of 10 results | Nov 15, 2004 | Feb 4, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 8 of 34 results | Apr 29, 2008 | Jun 26, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 37 results | Apr 29, 2008 | Aug 4, 2025 |
| Chromium 1020 | Inorganic Chemical | 5 of 10 results | Mar 2, 2005 | Jan 26, 2021 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 12, 2011 | Jul 10, 2012 |
| Ethylbenzene 2992 | Organic Chemical | 4 of 30 results | Jul 14, 2004 | May 12, 2008 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Jan 30, 2024 |
| Nickel 1036 | Inorganic Chemical | 2 of 10 results | Apr 2, 2008 | Apr 16, 2014 |
| Selenium 1045 | Inorganic Chemical | 2 of 10 results | Mar 2, 2005 | Feb 6, 2006 |
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 91–100 of 281 samples, newest first — collected June 23, 2014 to June 23, 2015. The summary above covers all 281.
24 results from the 10 samples listed here: 13 detected, 11 not detected. Across the whole record it is 465 of 1,480. 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 |
|---|---|---|
|
||
| 0.4835 mg/l , sample collected Jun 23, 2015 06:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| 0.0025 mg/l , sample collected Jun 23, 2015 06:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.1548 mg/l , sample collected Jun 23, 2015 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2015 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.4827 mg/l , sample collected Jun 23, 2015 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2015 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.1172 mg/l , sample collected Jun 23, 2015 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2015 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.0079 mg/l , sample collected Jun 23, 2015 07:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2015 07:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.3381 mg/l , sample collected Jun 23, 2015 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| 0.0009 mg/l , sample collected Jun 23, 2015 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.3932 mg/l , sample collected Jun 23, 2015 05:20, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| 0.002 mg/l , sample collected Jun 23, 2015 05:20, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 2, 2015 12:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 2, 2015 12:30, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 2, 2015 12:30, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 30, 2014 12:45, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 23, 2014 01:30, sampling point SMH | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.016 mg/l , sample collected Jun 23, 2014 01:30, sampling point SMH | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.011 mg/l , sample collected Jun 23, 2014 01:30, sampling point SMH | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 23, 2014 01:30, sampling point SMH | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 23, 2014 01:30, sampling point SMH | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.027 mg/l , sample collected Jun 23, 2014 01:30, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2014 – Dec 31, 2014 |
-
- Collected
- Jun 23, 2015 06:50
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-007PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4835 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0025 mg/l
-
- Collected
- Jun 23, 2015 06:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-006PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1548 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 23, 2015 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-005PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4827 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 23, 2015 06:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-004PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1172 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 23, 2015 07:50
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-003PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0079 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 23, 2015 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-002PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3381 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
-
- Collected
- Jun 23, 2015 05:20
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 150624-001PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3932 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.002 mg/l
-
- Collected
- Feb 2, 2015 12:30
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- 150203-043NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2015
-
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 30, 2014 12:45
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- 140731-010CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 23, 2014 01:30
- Sampling point
- SMH Location withheld
- Sample type
- Routine
- Lab sample
- 140624-002HA
- 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
- 0.016 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.011 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
- 0.027 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
Routine (10).