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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.

Every analyte ever detected for S MS Public Water Auth-Rock Hill, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 151–160 of 281 samples, newest first — collected June 10, 2009 to October 5, 2009. The summary above covers all 281.

61 results from the 10 samples listed here: 28 detected, 33 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.

Chemical and radiological sample results for S MS Public Water Auth-Rock Hill, every result from 151 to 160 of 281 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Oct 5, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
091006-026HA
Laboratory
MSDH Lab
0.004 mg/l , sample collected Oct 5, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.009 mg/l , sample collected Oct 5, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Oct 5, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 5, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 5, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Oct 5, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Oct 5, 2009
Sampling point
SM1 Churchwell Rd-Long Leaf Plantation
Sample type
Routine
Lab sample
091006-025HA
Laboratory
MSDH Lab
0.004 mg/l , sample collected Oct 5, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.009 mg/l , sample collected Oct 5, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Oct 5, 2009, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 5, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 5, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Oct 5, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jul 13, 2009
Sampling point
TF101
Sample type
Routine
Lab sample
090714-019VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
2.37 ug/l , sample collected Jul 13, 2009, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 13, 2009, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Collected
Jul 7, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090708-010TH
Laboratory
MSDH Lab
32.7 ug/l , sample collected Jul 7, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
4.59 ug/l , sample collected Jul 7, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
37.29 ug/l , sample collected Jul 7, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jul 7, 2009
Sampling point
SM1 Churchwell Rd-Long Leaf Plantation
Sample type
Routine
Lab sample
090708-009TH
Laboratory
MSDH Lab
61.5 ug/l , sample collected Jul 7, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
7.7 ug/l , sample collected Jul 7, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
69.2 ug/l , sample collected Jul 7, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jul 7, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090708-010HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.011 mg/l , sample collected Jul 7, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Jul 7, 2009, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Jul 7, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jul 7, 2009
Sampling point
SM1 Churchwell Rd-Long Leaf Plantation
Sample type
Routine
Lab sample
090708-009HA
Laboratory
MSDH Lab
0.002 mg/l , sample collected Jul 7, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Jul 7, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.016 mg/l , sample collected Jul 7, 2009, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 7, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.03 mg/l , sample collected Jul 7, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Jun 10, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
090611-056PB
Laboratory
MSDH Lab
0.037 mg/l , sample collected Jun 10, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009
0.0031 mg/l , sample collected Jun 10, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 10, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
090611-055PB
Laboratory
MSDH Lab
0.0361 mg/l , sample collected Jun 10, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009
0.003 mg/l , sample collected Jun 10, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 10, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
090611-054PB
Laboratory
MSDH Lab
0.0353 mg/l , sample collected Jun 10, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009
0.0029 mg/l , sample collected Jun 10, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2009

Routine (10).