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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

MS0680012 , Town of Webb

39 of the 72 analytes this system has been tested for have been detected at least once, across 234 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 234 samples on record, detections range from October 27, 2003 to July 9, 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 Webb, 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 69 of 69 results Aug 16, 2007 Aug 22, 2023
Lead 1030 Inorganic Chemical 29 of 69 results Aug 16, 2007 Aug 22, 2023
Fluoride 1025 Inorganic Chemical 22 of 22 results Oct 27, 2003 Apr 2, 2025
Barium 1010 Inorganic Chemical 20 of 20 results Oct 27, 2003 Apr 2, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 16 of 20 results Aug 16, 2004 Jul 9, 2025
TTHM 2950 Organic Chemical 16 of 21 results Aug 16, 2004 Jul 9, 2025
Chromium 1020 Inorganic Chemical 13 of 20 results Oct 27, 2003 May 14, 2019
Chloroform 2941 Organic Chemical 11 of 12 results Oct 4, 2006 May 28, 2019
Dichloroacetic Acid 2451 Organic Chemical 10 of 10 results Jul 8, 2008 Aug 16, 2017
Bromoform 2942 Organic Chemical 8 of 12 results May 11, 2009 May 28, 2019
Bromodichloromethane 2943 Organic Chemical 8 of 12 results May 11, 2009 May 28, 2019
Dibromochloromethane 2944 Organic Chemical 8 of 12 results May 11, 2009 May 28, 2019
Selenium 1045 Inorganic Chemical 8 of 20 results Mar 29, 2004 Feb 8, 2010
Trichloroacetic Acid 2452 Organic Chemical 7 of 10 results May 11, 2009 Jun 22, 2011
Sodium 1052 Inorganic Chemical 6 of 6 results Nov 4, 2010 Dec 11, 2023
Arsenic 1005 Inorganic Chemical 6 of 20 results Mar 29, 2004 Nov 28, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 6, 2011 Jul 20, 2012
Dibromoacetic Acid 2454 Organic Chemical 5 of 10 results Nov 9, 2009 Jun 22, 2011
Monochloroacetic Acid 2450 Organic Chemical 4 of 10 results Jul 8, 2008 Feb 8, 2010
Nickel 1036 Inorganic Chemical 3 of 20 results May 22, 2013 May 14, 2019
Monobromoacetic Acid 2453 Organic Chemical 3 of 10 results Jul 8, 2008 Jun 22, 2011
Cadmium 1015 Inorganic Chemical 3 of 20 results Apr 26, 2005 Apr 10, 2006
Nitrite 1041 Inorganic Chemical 2 of 42 results Sep 28, 2022 Sep 28, 2022
Calcium 1016 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Chloride 1017 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Iron 1028 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Magnesium 1031 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Manganese 1032 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Potassium 1042 Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Carbon Dioxide 1901 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Color 1905 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Alkalinity, Total 1927 Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Nov 4, 2010 Nov 4, 2010
Calculated Sodium NACA Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
PH, Field Result PHFD Water Quality 2 of 2 results Nov 4, 2010 Nov 4, 2010
Cyanide 1024 Inorganic Chemical 1 of 20 results Apr 10, 2006 Apr 10, 2006

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 234 samples, newest first — collected August 16, 2007 to May 11, 2009. The summary above covers all 234.

37 results from the 10 samples listed here: 20 detected, 17 not detected. Across the whole record it is 313 of 1,033. 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 Town of Webb, every result from 181 to 190 of 234 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
May 11, 2009
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
090512-021HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 11, 2009, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.004 mg/l , sample collected May 11, 2009, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.004 mg/l , sample collected May 11, 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 11, 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 May 11, 2009, sampling point SM2 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 May 11, 2009, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
May 11, 2009
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
090512-020HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 11, 2009, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.005 mg/l , sample collected May 11, 2009, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.004 mg/l , sample collected May 11, 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 May 11, 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 May 11, 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 May 11, 2009, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 Not recorded
Collected
Dec 1, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
081202-037NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Dec 1, 2008, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 22, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080723-005NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 22, 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 Jul 22, 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 Jul 22, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 8, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080709-019HA
Laboratory
MSDH Lab
0.004 mg/l , sample collected Jul 8, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Jul 8, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 8, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Jul 8, 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 Jul 8, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Jul 8, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 8, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080709-018TH
Laboratory
MSDH Lab
1.46 ug/l , sample collected Jul 8, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 8, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 8, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 8, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.46 ug/l , sample collected Jul 8, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2008
Collected
Aug 16, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070817-156PB
Laboratory
MSDH Lab
0.0874 mg/l , sample collected Aug 16, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0013 mg/l , sample collected Aug 16, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 16, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070817-152PB
Laboratory
MSDH Lab
0.2537 mg/l , sample collected Aug 16, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0015 mg/l , sample collected Aug 16, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 16, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070817-093PB
Laboratory
MSDH Lab
0.0298 mg/l , sample collected Aug 16, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0016 mg/l , sample collected Aug 16, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 16, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070817-153PB
Laboratory
MSDH Lab
0.1533 mg/l , sample collected Aug 16, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.001 mg/l , sample collected Aug 16, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).