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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

MS0350001 , Town of Dekalb

26 of the 62 analytes this system has been tested for have been detected at least once, across 166 samples on record.

The other 36 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 166 samples on record, detections range from September 24, 2003 to July 27, 2026. 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 Dekalb, 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 Jul 31, 2007 Jul 27, 2026
Barium 1010 Inorganic Chemical 15 of 15 results Sep 24, 2003 Jun 15, 2026
Nickel 1036 Inorganic Chemical 13 of 14 results Feb 23, 2004 Oct 8, 2025
Fluoride 1025 Inorganic Chemical 12 of 17 results Sep 24, 2003 Jul 15, 2026
Lead 1030 Inorganic Chemical 11 of 60 results Jul 31, 2007 Jul 27, 2026
TTHM 2950 Organic Chemical 9 of 16 results Jun 21, 2004 May 18, 2026
Dibromochloromethane 2944 Organic Chemical 7 of 12 results Aug 13, 2007 May 18, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 23, 2019 Jun 15, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 18 results Sep 22, 2009 Jun 15, 2021
Bromodichloromethane 2943 Organic Chemical 6 of 12 results Aug 13, 2007 Jun 15, 2020
Chloroform 2941 Organic Chemical 5 of 12 results Aug 13, 2007 Apr 22, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 17, 2012
Sulfate 1055 Inorganic Chemical 4 of 4 results Sep 24, 2003 May 12, 2021
Bromoform 2942 Organic Chemical 4 of 12 results Aug 13, 2007 Aug 22, 2018
Chromium 1020 Inorganic Chemical 3 of 15 results Feb 26, 2025 Jul 23, 2025
Dichloroacetic Acid 2451 Organic Chemical 3 of 13 results Jun 29, 2015 Apr 22, 2019
Calcium 1016 Inorganic Chemical 2 of 2 results May 12, 2021 May 12, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results May 12, 2021 May 12, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results May 12, 2021 May 12, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results May 12, 2021 May 12, 2021
Monobromoacetic Acid 2453 Organic Chemical 2 of 13 results Jun 29, 2015 Jun 15, 2020
Xylenes, Total 2955 Organic Chemical 1 of 8 results Oct 8, 2025 Oct 8, 2025
Arsenic 1005 Inorganic Chemical 1 of 15 results Jul 23, 2025 Jul 23, 2025
Selenium 1045 Inorganic Chemical 1 of 15 results Jul 23, 2025 Jul 23, 2025
Monochloroacetic Acid 2450 Organic Chemical 1 of 13 results Jun 29, 2015 Jun 29, 2015
Dibromoacetic Acid 2454 Organic Chemical 1 of 13 results Jun 29, 2015 Jun 29, 2015

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 131–140 of 166 samples, newest first — collected July 31, 2007 to September 23, 2009. The summary above covers all 166.

63 results from the 10 samples listed here: 15 detected, 48 not detected. Across the whole record it is 184 of 731. 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 Dekalb, every result from 131 to 140 of 166 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
Sep 23, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090924-001CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 23, 2009, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Sep 22, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090923-009TH
Laboratory
MSDH Lab
1.26 ug/l , sample collected Sep 22, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.33 ug/l , sample collected Sep 22, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.55 ug/l , sample collected Sep 22, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.98 ug/l , sample collected Sep 22, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
6.12 ug/l , sample collected Sep 22, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 22, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090923-008HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 22, 2009, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 22, 2009, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 22, 2009, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 22, 2009, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 22, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 22, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Apr 22, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090423-066NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 22, 2009, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 22, 2009, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 22, 2009, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Mar 23, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090324-002VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 23, 2009, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Feb 2, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090203-005IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.06211 mg/l , sample collected Feb 2, 2009, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
1.002 mg/l , sample collected Feb 2, 2009, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.003365 mg/l , sample collected Feb 2, 2009, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 2, 2009, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 9, 2008
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
080610-040NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 9, 2008, sampling point TF080 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 Jun 9, 2008, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 9, 2008, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Sep 24, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070925-022HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2005 – Dec 31, 2007
Collected
Aug 13, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070814-011TH
Laboratory
MSDH Lab
1.53 ug/l , sample collected Aug 13, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
2.68 ug/l , sample collected Aug 13, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.6 ug/l , sample collected Aug 13, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.62 ug/l , sample collected Aug 13, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
8.43 ug/l , sample collected Aug 13, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jul 31, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070801-404PB
Laboratory
MSDH Lab
0.0035 mg/l , sample collected Jul 31, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).