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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

MS0640003 , Town of Dlo

27 of the 57 analytes this system has been tested for have been detected at least once, across 179 samples on record.

The other 30 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 179 samples on record, detections range from October 22, 2003 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 Town of Dlo, 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 31 of 31 results Sep 27, 2007 Jul 27, 2023
Lead 1030 Inorganic Chemical 28 of 31 results Sep 27, 2007 Jul 27, 2023
Barium 1010 Inorganic Chemical 18 of 18 results Oct 22, 2003 Apr 7, 2025
Fluoride 1025 Inorganic Chemical 16 of 18 results Oct 22, 2003 Apr 7, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 15 of 43 results Mar 28, 2011 Apr 4, 2022
Nitrate 1040 Inorganic Chemical 15 of 43 results Mar 28, 2011 Apr 4, 2022
Chromium 1020 Inorganic Chemical 12 of 18 results Oct 22, 2003 Apr 7, 2025
TTHM 2950 Organic Chemical 11 of 14 results Aug 16, 2004 Mar 28, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 15, 2011 Sep 13, 2012
Nickel 1036 Inorganic Chemical 9 of 18 results Mar 22, 2004 Apr 7, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 14 results Sep 25, 2007 Mar 28, 2023
Dibromochloromethane 2944 Organic Chemical 5 of 11 results Oct 24, 2007 Jul 29, 2009
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 16, 2019 Dec 13, 2023
Monochloroacetic Acid 2450 Organic Chemical 3 of 10 results Jun 24, 2008 Aug 15, 2017
Chloroform 2941 Organic Chemical 3 of 11 results Oct 24, 2007 Sep 17, 2014
Bromodichloromethane 2943 Organic Chemical 3 of 11 results Oct 24, 2007 Nov 6, 2008
Selenium 1045 Inorganic Chemical 3 of 18 results Apr 18, 2005 Mar 27, 2006
Arsenic 1005 Inorganic Chemical 2 of 18 results Oct 18, 2022 Oct 18, 2022
Monobromoacetic Acid 2453 Organic Chemical 2 of 10 results Nov 6, 2008 Feb 4, 2009
Sulfate 1055 Inorganic Chemical 2 of 2 results Oct 22, 2003 Oct 22, 2003
Dibromoacetic Acid 2454 Organic Chemical 1 of 10 results Nov 6, 2008 Nov 6, 2008
Dichloroacetic Acid 2451 Organic Chemical 1 of 10 results Sep 11, 2008 Sep 11, 2008
Trichloroacetic Acid 2452 Organic Chemical 1 of 10 results Sep 11, 2008 Sep 11, 2008
Bromoform 2942 Organic Chemical 1 of 11 results Oct 24, 2007 Oct 24, 2007
Nitrite 1041 Inorganic Chemical 1 of 43 results Aug 2, 2006 Aug 2, 2006
Cyanide 1024 Inorganic Chemical 1 of 19 results Mar 27, 2006 Mar 27, 2006
Mercury 1035 Inorganic Chemical 1 of 17 results Mar 22, 2004 Mar 22, 2004

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 171–179 of 179 samples, newest first — collected October 22, 2003 to March 22, 2004. The summary above covers all 179.

80 results from the 9 samples listed here: 11 detected, 69 not detected. 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 Town of Dlo, every result from 171 to 179 of 179 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
Mar 22, 2004
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
040323-102IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.072 mg/l , sample collected Mar 22, 2004, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.0011 mg/l , sample collected Mar 22, 2004, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
0.001 mg/l , sample collected Mar 22, 2004, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2002 – Dec 31, 2004
Collected
Mar 22, 2004
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
040323-055CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Mar 22, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040323-054CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Mar 22, 2004, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Mar 17, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040318-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,2,4-Trichlorobenzene 2378 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Cis-1,2-Dichloroethylene 2380 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Xylenes, Total 2955 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 O-Dichlorobenzene 2968 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 P-Dichlorobenzene 2969 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Vinyl Chloride 2976 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,1-Dichloroethylene 2977 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Trans-1,2-Dichloroethylene 2979 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,2-Dichloroethane 2980 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,1,1-Trichloroethane 2981 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Carbon Tetrachloride 2982 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,2-Dichloropropane 2983 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 1,1,2-Trichloroethane 2985 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 17, 2004, sampling point TF101 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Mar 2, 2004
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
040303-027VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,2,4-Trichlorobenzene 2378 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Cis-1,2-Dichloroethylene 2380 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Xylenes, Total 2955 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 O-Dichlorobenzene 2968 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 P-Dichlorobenzene 2969 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Vinyl Chloride 2976 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,1-Dichloroethylene 2977 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Trans-1,2-Dichloroethylene 2979 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,2-Dichloroethane 2980 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,1,1-Trichloroethane 2981 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Carbon Tetrachloride 2982 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,2-Dichloropropane 2983 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 1,1,2-Trichloroethane 2985 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 2, 2004, sampling point TF102 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Oct 22, 2003
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
031023-039CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Oct 22, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
031023-038CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Cyanide 1024 EPA method QC10204001X Not recorded
Collected
Oct 22, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
031023-015IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.03 mg/l , sample collected Oct 22, 2003, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Oct 22, 2003, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
0.206 mg/l , sample collected Oct 22, 2003, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
26.6 mg/l , sample collected Oct 22, 2003, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Oct 22, 2003
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
031023-014IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.059 mg/l , sample collected Oct 22, 2003, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
0.002 mg/l , sample collected Oct 22, 2003, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
0.197 mg/l , sample collected Oct 22, 2003, sampling point TF102 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
26 mg/l , sample collected Oct 22, 2003, sampling point TF102 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 22, 2003, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded

Routine (9).