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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

MS0580010 , Troy Water Association

40 of the 75 analytes this system has been tested for have been detected at least once, across 254 samples on record.

The other 35 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 254 samples on record, detections range from October 15, 2003 to August 19, 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 Troy Water Association, 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 60 of 60 results Aug 7, 2007 Jul 27, 2023
Lead 1030 Inorganic Chemical 36 of 60 results Aug 7, 2007 Jul 27, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Oct 15, 2003 Mar 18, 2025
Fluoride 1025 Inorganic Chemical 17 of 20 results Oct 15, 2003 Mar 18, 2025
Nickel 1036 Inorganic Chemical 11 of 20 results Apr 11, 2005 Mar 18, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 11 of 12 results Mar 12, 2012 Oct 27, 2014
Arsenic 1005 Inorganic Chemical 10 of 20 results Apr 11, 2005 Mar 18, 2025
Nitrite 1041 Inorganic Chemical 8 of 45 results Sep 26, 2005 May 4, 2015
Chromium 1020 Inorganic Chemical 7 of 20 results Oct 15, 2003 May 6, 2013
Selenium 1045 Inorganic Chemical 7 of 20 results Apr 11, 2005 May 6, 2013
TTHM 2950 Organic Chemical 6 of 20 results Sep 4, 2007 Aug 19, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 20, 2019 Mar 5, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 3 of 45 results Sep 26, 2005 Jul 14, 2008
Bromoform 2942 Organic Chemical 2 of 14 results Dec 4, 2024 May 14, 2025
Dibromochloromethane 2944 Organic Chemical 2 of 14 results Feb 13, 2025 May 14, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 20 results Jun 28, 2010 Nov 3, 2021
Endrin 2005 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Toxaphene 2020 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Hexachlorocyclopentadiene 2042 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Heptachlor 2065 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aldrin 2356 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1016 2388 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1221 2390 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1232 2392 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1242 2394 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1254 2398 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1260 2400 Organic Chemical 2 of 2 results Apr 6, 2020 Apr 6, 2020
Xylenes, Total 2955 Organic Chemical 2 of 46 results Aug 17, 2010 Aug 17, 2010
Nitrate 1040 Inorganic Chemical 2 of 45 results Jul 14, 2008 Jul 14, 2008
Cadmium 1015 Inorganic Chemical 2 of 20 results Apr 11, 2005 Apr 11, 2005
Sulfate 1055 Inorganic Chemical 2 of 4 results Mar 17, 2004 Mar 17, 2004
BHC-Gamma 2010 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Methoxychlor 2015 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Heptachlor Epoxide 2067 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Dieldrin 2070 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Hexachlorobenzene 2274 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Aroclor 1248 2396 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Chlordane 2959 Organic Chemical 1 of 2 results Apr 6, 2020 Apr 6, 2020
Cyanide 1024 Inorganic Chemical 1 of 20 results Apr 10, 2006 Apr 10, 2006
Dichloromethane 2964 Organic Chemical 1 of 46 results Aug 23, 2004 Aug 23, 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 181–190 of 254 samples, newest first — collected April 20, 2011 to August 23, 2011. The summary above covers all 254.

58 results from the 10 samples listed here: 13 detected, 45 not detected. Across the whole record it is 247 of 1,728. 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 Troy Water Association, every result from 181 to 190 of 254 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
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-086PB
Laboratory
MSDH Lab
0.006 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0006 mg/l , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-084PB
Laboratory
MSDH Lab
0.0803 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.002 mg/l , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-085PB
Laboratory
MSDH Lab
0.0129 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0006 mg/l , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-083PB
Laboratory
MSDH Lab
0.2818 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-020PB
Laboratory
MSDH Lab
0.1197 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-019PB
Laboratory
MSDH Lab
0.3173 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-018PB
Laboratory
MSDH Lab
0.1841 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0005 mg/l , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 23, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110824-017PB
Laboratory
MSDH Lab
0.073 mg/l , sample collected Aug 23, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0005 mg/l , sample collected Aug 23, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Apr 20, 2011
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
110421-025VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Benzene 2990 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Toluene 2991 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF102 Styrene 2996 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Collected
Apr 20, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110421-024VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Benzene 2990 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Toluene 2991 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 20, 2011, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011

Routine (10).