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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

MS0270018 , Humphreys Co. W/A #1-Midnight

35 of the 72 analytes this system has been tested for have been detected at least once, across 287 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 287 samples on record, detections range from August 10, 1993 to April 7, 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 Humphreys Co. W/A #1-Midnight, 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 76 of 130 results Aug 12, 1993 Jul 11, 2023
Lead 1030 Inorganic Chemical 44 of 130 results Aug 10, 1993 Jul 11, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 23 of 23 results Jun 9, 2004 Apr 7, 2025
Barium 1010 Inorganic Chemical 22 of 22 results Sep 24, 2003 Apr 7, 2025
TTHM 2950 Organic Chemical 19 of 21 results Jun 9, 2004 Apr 7, 2025
Dichloroacetic Acid 2451 Organic Chemical 14 of 14 results Jun 26, 2008 Aug 26, 2020
Fluoride 1025 Inorganic Chemical 13 of 23 results Sep 24, 2003 Apr 7, 2025
Trichloroacetic Acid 2452 Organic Chemical 13 of 14 results Jun 26, 2008 Apr 17, 2019
Chloroform 2941 Organic Chemical 13 of 14 results Oct 12, 2006 Apr 17, 2019
Chromium 1020 Inorganic Chemical 9 of 22 results Mar 21, 2005 Apr 7, 2025
Bromodichloromethane 2943 Organic Chemical 8 of 14 results Oct 12, 2006 Sep 24, 2014
Monochloroacetic Acid 2450 Organic Chemical 6 of 14 results Apr 13, 2009 Apr 17, 2019
Sodium 1052 Inorganic Chemical 4 of 4 results Jun 7, 2017 Feb 7, 2024
Nickel 1036 Inorganic Chemical 3 of 22 results Sep 24, 2003 Apr 7, 2025
Xylenes, Total 2955 Organic Chemical 3 of 20 results Aug 15, 2019 Jan 3, 2022
Sulfate 1055 Inorganic Chemical 3 of 3 results Sep 24, 2003 Jun 7, 2017
Nitrite 1041 Inorganic Chemical 2 of 32 results May 19, 2004 Aug 15, 2005
Arsenic 1005 Inorganic Chemical 1 of 22 results Feb 7, 2024 Feb 7, 2024
Ethylbenzene 2992 Organic Chemical 1 of 20 results Aug 15, 2019 Aug 15, 2019
Calcium 1016 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Iron 1028 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Magnesium 1031 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Manganese 1032 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Potassium 1042 Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Carbon Dioxide 1901 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Color 1905 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Alkalinity, Total 1927 Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jun 7, 2017 Jun 7, 2017
Calculated Sodium NACA Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
PH, Field Result PHFD Water Quality 1 of 1 result Jun 7, 2017 Jun 7, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Aug 16, 2012 Aug 16, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 14 results Aug 16, 2012 Aug 16, 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 171–180 of 287 samples, newest first — collected May 5, 2008 to July 9, 2009. The summary above covers all 287.

66 results from the 10 samples listed here: 22 detected, 44 not detected. Across the whole record it is 293 of 1,261. 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.

Chemical and radiological sample results for Humphreys Co. W/A #1-Midnight, every result from 171 to 180 of 287 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
Jul 9, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090710-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 9, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 9, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 9, 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 9, 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 9, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Jul 9, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Apr 13, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090414-012TH
Laboratory
MSDH Lab
19.5 ug/l , sample collected Apr 13, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3.38 ug/l , sample collected Apr 13, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
22.88 ug/l , sample collected Apr 13, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Apr 13, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090414-011TH
Laboratory
MSDH Lab
62.9 ug/l , sample collected Apr 13, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
7.24 ug/l , sample collected Apr 13, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
70.14 ug/l , sample collected Apr 13, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Apr 13, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090414-014HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Apr 13, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Apr 13, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Apr 13, 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 Apr 13, 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 Apr 13, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Apr 13, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Apr 13, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090414-013HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.025 mg/l , sample collected Apr 13, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.019 mg/l , sample collected Apr 13, 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 Apr 13, 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 Apr 13, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.04 mg/l , sample collected Apr 13, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Apr 13, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090414-043NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 13, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 26, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080627-007TH
Laboratory
MSDH Lab
12.2 ug/l , sample collected Jun 26, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.43 ug/l , sample collected Jun 26, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
14.63 ug/l , sample collected Jun 26, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 26, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080627-007HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Jun 26, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Jun 26, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.011 mg/l , sample collected Jun 26, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
May 28, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080529-045NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 28, 2008, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 28, 2008, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 28, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
May 5, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080506-037VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 5, 2008, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010

Routine (10).