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 71–80 of 281 samples, newest first — collected November 7, 2017 to July 11, 2018. The summary above covers all 281.
31 results from the 10 samples listed here: 17 detected, 14 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 2 sampling points 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 |
|---|---|---|
|
||
| 0.4798 mg/l , sample collected Jul 11, 2018 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.001 mg/l , sample collected Jul 11, 2018 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.0983 mg/l , sample collected Jul 11, 2018 06:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 11, 2018 06:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.2851 mg/l , sample collected Jul 11, 2018 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 11, 2018 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.3649 mg/l , sample collected Jul 11, 2018 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 11, 2018 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.3311 mg/l , sample collected Jul 10, 2018 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.001 mg/l , sample collected Jul 10, 2018 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 24.5 ug/l , sample collected Jun 26, 2018 11:45, sampling point SMT | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2018 11:45, sampling point SMT | Bromoform 2942 EPA method 524.2 | Not recorded |
| 4.55 ug/l , sample collected Jun 26, 2018 11:45, sampling point SMT | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2018 11:45, sampling point SMT | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 29.1 ug/l , sample collected Jun 26, 2018 11:45, sampling point SMT | TTHM 2950 | Jan 1, 2018 – Dec 31, 2018 |
|
||
| 0.002 mg/l , sample collected Jun 26, 2018 12:10, sampling point SMH | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.007 mg/l , sample collected Jun 26, 2018 12:10, sampling point SMH | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.01 mg/l , sample collected Jun 26, 2018 12:10, 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 26, 2018 12:10, 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 26, 2018 12:10, sampling point SMH | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.02 mg/l , sample collected Jun 26, 2018 12:10, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2018 – Dec 31, 2018 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 8, 2018 12:10, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2018 11:50, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2018 11:50, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2018 11:50, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 12:25, sampling point SMH | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.013 mg/l , sample collected Nov 7, 2017 12:25, sampling point SMH | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.015 mg/l , sample collected Nov 7, 2017 12:25, sampling point SMH | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 12:25, sampling point SMH | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 7, 2017 12:25, sampling point SMH | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.028 mg/l , sample collected Nov 7, 2017 12:25, sampling point SMH | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2017 |
-
- Collected
- Jul 11, 2018 07:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 180712-016PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.4798 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.001 mg/l
-
- Collected
- Jul 11, 2018 06:45
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 180712-015PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0983 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 11, 2018 07:15
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 180712-014PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2851 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 11, 2018 06:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 180712-013PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3649 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 10, 2018 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 180712-017PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3311 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.001 mg/l
-
- Collected
- Jun 26, 2018 11:45
- Sampling point
- SMT Location withheld
- Sample type
- Routine
- Lab sample
- 180627-013TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 24.5 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
- 4.55 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
- Result
- 29.1 ug/l
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
- Collected
- Jun 26, 2018 12:10
- Sampling point
- SMH Location withheld
- Sample type
- Routine
- Lab sample
- 180627-013HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.007 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.01 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
- 0.02 mg/l
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
- Collected
- May 8, 2018 12:10
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- 180509-002CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Feb 5, 2018 11:50
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- 180206-036NI
- 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
- Nov 7, 2017 12:25
- Sampling point
- SMH Location withheld
- Sample type
- Routine
- Lab sample
- 171108-005HA
- 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
- 0.013 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.015 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
- 0.028 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
Routine (10).