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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

MS0040008 , Possumneck-Carmack W/A

24 of the 57 analytes this system has been tested for have been detected at least once, across 354 samples on record.

The other 33 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 354 samples on record, detections range from September 8, 1993 to December 17, 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 Possumneck-Carmack W/A, 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 142 of 150 results Sep 8, 1993 Sep 23, 2025
Lead 1030 Inorganic Chemical 78 of 150 results Sep 8, 1993 Sep 23, 2025
TTHM 2950 Organic Chemical 40 of 41 results May 3, 2004 Dec 17, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 37 of 41 results Jun 21, 2005 Dec 17, 2025
Chloroform 2941 Organic Chemical 25 of 26 results Mar 27, 2006 Dec 17, 2025
Bromodichloromethane 2943 Organic Chemical 24 of 26 results Mar 27, 2006 Dec 17, 2025
Dibromochloromethane 2944 Organic Chemical 24 of 26 results Mar 27, 2006 Dec 17, 2025
Barium 1010 Inorganic Chemical 24 of 24 results Jan 29, 2002 Mar 5, 2025
Dichloroacetic Acid 2451 Organic Chemical 18 of 20 results Jan 29, 2008 Dec 17, 2025
Trichloroacetic Acid 2452 Organic Chemical 18 of 20 results Jan 29, 2008 Dec 17, 2025
Chromium 1020 Inorganic Chemical 15 of 24 results Jan 29, 2002 Jan 29, 2025
Dibromoacetic Acid 2454 Organic Chemical 14 of 20 results Jan 29, 2008 Dec 17, 2025
Fluoride 1025 Inorganic Chemical 11 of 24 results Sep 8, 2003 Mar 5, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 6, 2011 Jul 10, 2012
Bromoform 2942 Organic Chemical 8 of 26 results May 4, 2009 Dec 17, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 30, 2019 Oct 30, 2024
Arsenic 1005 Inorganic Chemical 6 of 24 results Jan 12, 2004 Apr 1, 2020
Selenium 1045 Inorganic Chemical 6 of 24 results Sep 8, 2003 May 4, 2011
Nickel 1036 Inorganic Chemical 5 of 24 results Mar 10, 2008 Jan 29, 2025
Monochloroacetic Acid 2450 Organic Chemical 5 of 20 results Nov 9, 2009 Apr 15, 2019
Monobromoacetic Acid 2453 Organic Chemical 4 of 20 results Sep 11, 2017 Dec 17, 2020
Sulfate 1055 Inorganic Chemical 2 of 6 results Jan 29, 2002 Jan 12, 2004
Xylenes, Total 2955 Organic Chemical 1 of 14 results May 2, 2022 May 2, 2022
Cyanide 1024 Inorganic Chemical 1 of 20 results Apr 16, 2018 Apr 16, 2018

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 354 samples, newest first — collected May 4, 2009 to November 9, 2009. The summary above covers all 354.

54 results from the 10 samples listed here: 42 detected, 12 not detected. Across the whole record it is 524 of 1,360. 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 Possumneck-Carmack W/A, every result from 181 to 190 of 354 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
Nov 9, 2009
Sampling point
SM1 County Barn
Sample type
Routine
Lab sample
091110-035HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Nov 9, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Nov 9, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Nov 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 Nov 9, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Nov 9, 2009, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Nov 9, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Nov 9, 2009
Sampling point
SM2 Emmitt Erving 3675 Ar 3007
Sample type
Routine
Lab sample
091110-016TH
Laboratory
MSDH Lab
14.1 ug/l , sample collected Nov 9, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
1.65 ug/l , sample collected Nov 9, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
14.3 ug/l , sample collected Nov 9, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
12.8 ug/l , sample collected Nov 9, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
42.85 ug/l , sample collected Nov 9, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Nov 9, 2009
Sampling point
SM1 County Barn
Sample type
Routine
Lab sample
091110-015TH
Laboratory
MSDH Lab
7.01 ug/l , sample collected Nov 9, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 9, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
4.56 ug/l , sample collected Nov 9, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.99 ug/l , sample collected Nov 9, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
14.56 ug/l , sample collected Nov 9, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 13, 2009
Sampling point
SM1 County Barn
Sample type
Routine
Lab sample
090814-019TH
Laboratory
MSDH Lab
11.3 ug/l , sample collected Aug 13, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
6.23 ug/l , sample collected Aug 13, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
3.76 ug/l , sample collected Aug 13, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
21.29 ug/l , sample collected Aug 13, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 13, 2009
Sampling point
SM2 Emmitt Erving 3675 Ar 3007
Sample type
Routine
Lab sample
090814-018TH
Laboratory
MSDH Lab
16.5 ug/l , sample collected Aug 13, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
2.62 ug/l , sample collected Aug 13, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
18.2 ug/l , sample collected Aug 13, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
18.5 ug/l , sample collected Aug 13, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
55.82 ug/l , sample collected Aug 13, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 13, 2009
Sampling point
SM2 Emmitt Erving 3675 Ar 3007
Sample type
Routine
Lab sample
090814-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 13, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Aug 13, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Aug 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 Aug 13, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 13, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Aug 13, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Aug 13, 2009
Sampling point
SM1 County Barn
Sample type
Routine
Lab sample
090814-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 13, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 13, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Aug 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 Aug 13, 2009, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 13, 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 Aug 13, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 4, 2009
Sampling point
SM1 County Barn
Sample type
Routine
Lab sample
090505-002TH
Laboratory
MSDH Lab
1.95 ug/l , sample collected May 4, 2009, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.95 ug/l , sample collected May 4, 2009, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 4, 2009
Sampling point
SM2 Emmitt Erving 3675 Ar 3007
Sample type
Routine
Lab sample
090505-001TH
Laboratory
MSDH Lab
7.63 ug/l , sample collected May 4, 2009, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
3.5 ug/l , sample collected May 4, 2009, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
7.76 ug/l , sample collected May 4, 2009, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
8.57 ug/l , sample collected May 4, 2009, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
27.46 ug/l , sample collected May 4, 2009, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 4, 2009
Sampling point
SM2 Emmitt Erving 3675 Ar 3007
Sample type
Routine
Lab sample
090505-020HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 4, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.004 mg/l , sample collected May 4, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.003 mg/l , sample collected May 4, 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 May 4, 2009, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.003 mg/l , sample collected May 4, 2009, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected May 4, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded

Routine (10).