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 11–20 of 281 samples, newest first — collected May 14, 2024 to August 13, 2024. The summary above covers all 281.
47 results from the 10 samples listed here: 28 detected, 19 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 6 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 |
|---|---|---|
|
||
| 0.0547 mg/l , sample collected Aug 13, 2024 08:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 2 ug/l , sample collected Aug 13, 2024 08:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0109 mg/l , sample collected Aug 13, 2024 07:59, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 07:59, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0388 mg/l , sample collected Aug 13, 2024 07:26, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 1.5 ug/l , sample collected Aug 13, 2024 07:26, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0321 mg/l , sample collected Aug 13, 2024 06:41, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 2.8 ug/l , sample collected Aug 13, 2024 06:41, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0136 mg/l , sample collected Aug 13, 2024 07:51, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 07:51, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0275 mg/l , sample collected Aug 13, 2024 08:15, sampling point LC0002 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| 2.4 ug/l , sample collected Aug 13, 2024 08:15, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.368 mg/l , sample collected Aug 13, 2024 05:36, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 05:36, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 12:10, sampling point SM4 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 7.8 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 13 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 12:10, sampling point SM4 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 12:10, sampling point SM4 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 20.8 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 25 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 12:10, sampling point SM4 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.5 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 0.95 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 31.45 ug/l , sample collected Aug 6, 2024 12:10, sampling point SM4 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 11:50, sampling point SM3 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 7.8 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 13 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 11:50, sampling point SM3 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 11:50, sampling point SM3 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 20.8 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 25 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 6, 2024 11:50, sampling point SM3 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.4 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 0.95 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 31.35 ug/l , sample collected Aug 6, 2024 11:50, sampling point SM3 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 9.6 ug/l , sample collected May 14, 2024 12:10, sampling point SM4 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 13 ug/l , sample collected May 14, 2024 12:10, sampling point SM4 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 22.6 ug/l , sample collected May 14, 2024 12:10, sampling point SM4 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2024 12:10, sampling point SM4 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
-
- Collected
- Aug 13, 2024 08:15
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- PB-240814-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0547 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2 ug/l
-
- Collected
- Aug 13, 2024 07:59
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240814-021
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0109 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 13, 2024 07:26
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240814-022
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0388 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.5 ug/l
-
- Collected
- Aug 13, 2024 06:41
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- PB-240814-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0321 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.8 ug/l
-
- Collected
- Aug 13, 2024 07:51
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- PB-240814-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0136 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 13, 2024 08:15
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240814-028
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0275 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.4 ug/l
-
- Collected
- Aug 13, 2024 05:36
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240814-030
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.368 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 6, 2024 12:10
- Sampling point
- SM4 Location withheld
- Sample type
- Routine
- Lab sample
- 810-114627-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 7.8 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 13 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 20.8 ug/l
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 25 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.5 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 0.95 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 31.45 ug/l
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
- Collected
- Aug 6, 2024 11:50
- Sampling point
- SM3 Location withheld
- Sample type
- Routine
- Lab sample
- 810-114627-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 7.8 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 13 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 20.8 ug/l
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 25 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.4 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 0.95 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 31.35 ug/l
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
- Collected
- May 14, 2024 12:10
- Sampling point
- SM4 Location withheld
- Sample type
- Routine
- Lab sample
- 810-104592-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 9.6 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 13 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 22.6 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
Routine (10).