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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

MS0270003 , Town of Isola

35 of the 72 analytes this system has been tested for have been detected at least once, across 373 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 373 samples on record, detections range from July 14, 1993 to April 10, 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 Isola, 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 100 of 142 results Jul 14, 1993 Jul 31, 2023
Lead 1030 Inorganic Chemical 56 of 142 results Jul 14, 1993 Jul 31, 2023
Fluoride 1025 Inorganic Chemical 36 of 37 results Sep 17, 2003 Feb 24, 2025
Barium 1010 Inorganic Chemical 31 of 34 results Sep 17, 2003 Feb 24, 2025
Chromium 1020 Inorganic Chemical 21 of 34 results Sep 17, 2003 Jun 10, 2019
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 12 of 12 results Aug 9, 2004 Apr 10, 2025
TTHM 2950 Organic Chemical 11 of 11 results Aug 9, 2004 Apr 10, 2025
Sodium 1052 Inorganic Chemical 9 of 9 results Jul 29, 2010 Feb 24, 2025
Sulfate 1055 Inorganic Chemical 9 of 9 results Sep 17, 2003 Jul 29, 2010
Nickel 1036 Inorganic Chemical 5 of 34 results Apr 14, 2008 May 23, 2022
Dichloroacetic Acid 2451 Organic Chemical 5 of 5 results Sep 23, 2008 Sep 23, 2019
Trichloroacetic Acid 2452 Organic Chemical 5 of 5 results Sep 23, 2008 Sep 23, 2019
Chloroform 2941 Organic Chemical 5 of 5 results Aug 1, 2007 Sep 25, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 3 of 65 results Feb 17, 2022 Feb 17, 2022
Nitrate 1040 Inorganic Chemical 3 of 65 results Feb 17, 2022 Feb 17, 2022
Monochloroacetic Acid 2450 Organic Chemical 3 of 5 results Aug 21, 2012 Sep 23, 2019
Bromodichloromethane 2943 Organic Chemical 3 of 5 results Aug 21, 2012 Sep 25, 2018
Calcium 1016 Inorganic Chemical 3 of 3 results Jul 29, 2010 Jul 29, 2010
Potassium 1042 Inorganic Chemical 3 of 3 results Jul 29, 2010 Jul 29, 2010
Residue, Total, Filterable 1057 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Carbon Dioxide 1901 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Color 1905 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Hardness, Total (As Caco3) 1915 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Alkalinity, Total 1927 Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Iron, Field Result FEFD Inorganic Chemical 3 of 3 results Jul 29, 2010 Jul 29, 2010
Calculated Sodium NACA Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
PH, Field Result PHFD Water Quality 3 of 3 results Jul 29, 2010 Jul 29, 2010
Cadmium 1015 Inorganic Chemical 3 of 34 results Mar 10, 2005 Mar 10, 2005
Selenium 1045 Inorganic Chemical 3 of 34 results Mar 10, 2005 Mar 10, 2005
Monobromoacetic Acid 2453 Organic Chemical 2 of 5 results Aug 21, 2012 Jul 21, 2015
Nitrite 1041 Inorganic Chemical 2 of 65 results Aug 15, 2005 Jul 7, 2010
Xylenes, Total 2955 Organic Chemical 1 of 40 results Feb 15, 2023 Feb 15, 2023
Manganese 1032 Inorganic Chemical 1 of 3 results Jul 29, 2010 Jul 29, 2010
Antimony, Total 1074 Inorganic Chemical 1 of 34 results Sep 17, 2003 Sep 17, 2003

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 281–290 of 373 samples, newest first — collected September 17, 2003 to February 11, 2004. The summary above covers all 373.

92 results from the 10 samples listed here: 8 detected, 84 not detected. Across the whole record it is 363 of 1,932. 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 Isola, every result from 281 to 290 of 373 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
Feb 11, 2004
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
040212-065CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 11, 2004, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Feb 11, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040212-064CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Feb 11, 2004, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Jan 28, 2004
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
040129-020VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,2,4-Trichlorobenzene 2378 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Cis-1,2-Dichloroethylene 2380 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Xylenes, Total 2955 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 O-Dichlorobenzene 2968 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 P-Dichlorobenzene 2969 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Vinyl Chloride 2976 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,1-Dichloroethylene 2977 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Trans-1,2-Dichloroethylene 2979 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,2-Dichloroethane 2980 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,1,1-Trichloroethane 2981 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Carbon Tetrachloride 2982 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,2-Dichloropropane 2983 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 1,1,2-Trichloroethane 2985 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF103 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Jan 28, 2004
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
040129-019VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 2004, sampling point TF102 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 2004, sampling point TF102 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 2004, sampling point TF102 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF102 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF102 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF102 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF102 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF102 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Jan 28, 2004
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
040129-018VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 2004, sampling point TF101 Dichloromethane 2964 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 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 Jan 28, 2004, sampling point TF101 Trichloroethylene 2984 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 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 Jan 28, 2004, sampling point TF101 Tetrachloroethylene 2987 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 Chlorobenzene 2989 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 Benzene 2990 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 Toluene 2991 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 Ethylbenzene 2992 Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 28, 2004, sampling point TF101 Styrene 2996 Jan 1, 2004 – Mar 31, 2004
Collected
Sep 17, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
030918-038CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Sep 17, 2003
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
030918-031CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Sep 17, 2003
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
030918-029CN
Laboratory
MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2002 – Dec 31, 2004
Collected
Sep 17, 2003
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
030918-003IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Arsenic 1005 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Sep 17, 2003, sampling point TF102 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Cadmium 1015 EPA method 200.8 Not recorded
0.002 mg/l , sample collected Sep 17, 2003, sampling point TF102 Chromium 1020 EPA method 200.8 Not recorded
0.262 mg/l , sample collected Sep 17, 2003, sampling point TF102 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF102 Selenium 1045 EPA method 200.8 Not recorded
6.99 mg/l , sample collected Sep 17, 2003, sampling point TF102 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 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 Sep 17, 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 Sep 17, 2003, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Sep 17, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
030918-002IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.003 mg/l , sample collected Sep 17, 2003, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
0.128 mg/l , sample collected Sep 17, 2003, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
8.04 mg/l , sample collected Sep 17, 2003, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
0.001 mg/l , sample collected Sep 17, 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 Sep 17, 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 Sep 17, 2003, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded

Routine (10).