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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

MS0580004 , Oak Hill Water Assn

35 of the 72 analytes this system has been tested for have been detected at least once, across 333 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 333 samples on record, detections range from October 15, 2003 to June 23, 2026. 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 Oak Hill Water Assn, 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 62 of 62 results Sep 25, 2007 Sep 13, 2023
Barium 1010 Inorganic Chemical 38 of 38 results Oct 15, 2003 Jun 23, 2026
Fluoride 1025 Inorganic Chemical 30 of 39 results Oct 15, 2003 Jun 23, 2026
Nickel 1036 Inorganic Chemical 29 of 37 results Mar 15, 2004 Mar 18, 2025
Chromium 1020 Inorganic Chemical 24 of 38 results Oct 15, 2003 Mar 24, 2020
Arsenic 1005 Inorganic Chemical 21 of 38 results Mar 15, 2004 Mar 18, 2025
Lead 1030 Inorganic Chemical 21 of 62 results Sep 25, 2007 Sep 13, 2023
TTHM 2950 Organic Chemical 17 of 19 results Jul 26, 2004 Sep 10, 2025
Sodium 1052 Inorganic Chemical 14 of 14 results May 12, 2016 Jun 23, 2026
Bromoform 2942 Organic Chemical 12 of 15 results Jun 29, 2010 Sep 10, 2025
Selenium 1045 Inorganic Chemical 11 of 38 results Mar 15, 2004 May 9, 2017
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 12, 2011 Oct 11, 2012
Sulfate 1055 Inorganic Chemical 8 of 9 results Oct 15, 2003 May 12, 2016
Dibromochloromethane 2944 Organic Chemical 5 of 15 results Mar 13, 2024 Sep 10, 2025
Xylenes, Total 2955 Organic Chemical 5 of 43 results Aug 18, 2010 Sep 6, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 19 results Jun 29, 2010 Apr 22, 2019
Ethylbenzene 2992 Organic Chemical 2 of 43 results May 9, 2018 Aug 21, 2018
Combined Radium (-226 & -228) 4010 Radionuclide 2 of 12 results Sep 20, 2012 Dec 10, 2012
Radium-226 4020 Radionuclide 2 of 12 results Sep 20, 2012 Dec 10, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 15 results Apr 22, 2019 Apr 22, 2019
Calcium 1016 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Chloride 1017 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Iron 1028 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Magnesium 1031 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Manganese 1032 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Potassium 1042 Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Residue, Total, Filterable 1057 Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Carbon Dioxide 1901 Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Color 1905 Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Alkalinity, Total 1927 Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result May 12, 2016 May 12, 2016
Calculated Sodium NACA Water Quality 1 of 1 result May 12, 2016 May 12, 2016
PH, Field Result PHFD Water Quality 1 of 1 result May 12, 2016 May 12, 2016
Gross Alpha Particle Activity 4109 Radionuclide 1 of 2 results Dec 10, 2012 Dec 10, 2012

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 101–110 of 333 samples, newest first — collected April 15, 2019 to September 19, 2019. The summary above covers all 333.

79 results from the 10 samples listed here: 7 detected, 72 not detected. Across the whole record it is 331 of 2,009. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Oak Hill Water Assn, every result from 101 to 110 of 333 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
Sep 19, 2019 11:42
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
680-174388-187
Laboratory
Test America-Savannah
45000 ug/l , sample collected Sep 19, 2019 11:42, sampling point TF104 Sodium 1052 EPA method 200.7 Not recorded
Collected
Sep 19, 2019 11:02
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
680-174388-186
Laboratory
Test America-Savannah
64000 ug/l , sample collected Sep 19, 2019 11:02, sampling point TF103 Sodium 1052 EPA method 200.7 Not recorded
Collected
Sep 19, 2019 12:12
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
680-174388-185
Laboratory
Test America-Savannah
50000 ug/l , sample collected Sep 19, 2019 12:12, sampling point TF102 Sodium 1052 EPA method 200.7 Not recorded
Collected
Sep 3, 2019 12:20
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
190904-015VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Benzene 2990 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Toluene 2991 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 3, 2019 12:20, sampling point TF106 Styrene 2996 EPA method 524.2 Not recorded
Collected
Jun 18, 2019 02:01
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
190619-045CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 18, 2019 02:01, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Jun 18, 2019 01:40
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
190619-040CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 18, 2019 01:40, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
May 14, 2019 13:25
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
190515-009VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Benzene 2990 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Toluene 2991 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 14, 2019 13:25, sampling point TF106 Styrene 2996 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Collected
Apr 22, 2019 14:31
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190423-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 22, 2019 14:31, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 22, 2019 14:31, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 22, 2019 14:31, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 22, 2019 14:31, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Apr 22, 2019 14:31, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Apr 22, 2019 14:31, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Apr 22, 2019 13:50
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
190423-002TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 22, 2019 13:50, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.18 ug/l , sample collected Apr 22, 2019 13:50, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 22, 2019 13:50, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 22, 2019 13:50, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.18 ug/l , sample collected Apr 22, 2019 13:50, sampling point MRT000 TTHM 2950 Jan 1, 2019 – Dec 31, 2019
Collected
Apr 15, 2019 14:20
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
190416-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Dichloromethane 2964 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Benzene 2990 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Toluene 2991 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 15, 2019 14:20, sampling point TF106 Styrene 2996 EPA method 524.2 Apr 1, 2019 – Jun 30, 2019

Routine (10).