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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

MS0600004 , Darling Water Association

27 of the 59 analytes this system has been tested for have been detected at least once, across 195 samples on record.

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 195 samples on record, detections range from October 27, 2003 to September 30, 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 Darling 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 79 of 80 results Jul 11, 2007 Sep 30, 2025
Lead 1030 Inorganic Chemical 68 of 80 results Jul 11, 2007 Sep 30, 2025
TTHM 2950 Organic Chemical 16 of 16 results Jun 20, 2007 Dec 20, 2022
Chloroform 2941 Organic Chemical 15 of 15 results Jun 20, 2007 Dec 5, 2016
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 14 of 15 results Jun 20, 2007 Dec 20, 2022
Bromodichloromethane 2943 Organic Chemical 14 of 15 results Jun 20, 2007 Dec 5, 2016
Bromoform 2942 Organic Chemical 13 of 15 results Jun 20, 2007 Dec 5, 2016
Dibromochloromethane 2944 Organic Chemical 13 of 15 results Jun 20, 2007 Dec 5, 2016
Dichloroacetic Acid 2451 Organic Chemical 11 of 13 results Oct 24, 2007 Dec 5, 2016
Xylenes, Total 2955 Organic Chemical 10 of 32 results Aug 16, 2010 Sep 21, 2021
Dibromoacetic Acid 2454 Organic Chemical 10 of 13 results Oct 24, 2007 Dec 5, 2016
Barium 1010 Inorganic Chemical 9 of 9 results Oct 27, 2003 Mar 25, 2025
Fluoride 1025 Inorganic Chemical 9 of 9 results Oct 27, 2003 Mar 25, 2025
Arsenic 1005 Inorganic Chemical 8 of 9 results Mar 22, 2004 Mar 25, 2025
Chromium 1020 Inorganic Chemical 8 of 9 results Oct 27, 2003 Mar 25, 2025
Trichloroacetic Acid 2452 Organic Chemical 8 of 13 results Oct 24, 2007 Dec 5, 2016
Selenium 1045 Inorganic Chemical 7 of 9 results Mar 22, 2004 Oct 18, 2022
Nickel 1036 Inorganic Chemical 6 of 9 results Apr 12, 2006 Mar 25, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 17, 2019 Nov 7, 2023
Monobromoacetic Acid 2453 Organic Chemical 2 of 13 results Oct 24, 2007 Dec 5, 2016
Carbon Tetrachloride 2982 Organic Chemical 1 of 32 results Sep 21, 2021 Sep 21, 2021
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 3 results Aug 4, 2020 Aug 4, 2020
Radium-226 4020 Radionuclide 1 of 3 results Aug 4, 2020 Aug 4, 2020
Gross Alpha Particle Activity 4109 Radionuclide 1 of 4 results Sep 10, 2012 Sep 10, 2012
Dichloromethane 2964 Organic Chemical 1 of 32 results Aug 22, 2011 Aug 22, 2011
Monochloroacetic Acid 2450 Organic Chemical 1 of 13 results Nov 16, 2009 Nov 16, 2009
Nitrite 1041 Inorganic Chemical 1 of 22 results Jul 14, 2008 Jul 14, 2008

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 141–150 of 195 samples, newest first — collected March 15, 2010 to June 13, 2011. The summary above covers all 195.

85 results from the 10 samples listed here: 17 detected, 68 not detected. Across the whole record it is 329 of 1,186. 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 Darling Water Association, every result from 141 to 150 of 195 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
Jun 13, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110614-011PB
Laboratory
MSDH Lab
0.0431 mg/l , sample collected Jun 13, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Jun 13, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Jun 12, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110614-015PB
Laboratory
MSDH Lab
0.0628 mg/l , sample collected Jun 12, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Not recorded
0.0009 mg/l , sample collected Jun 12, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Not recorded
Collected
Apr 18, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110419-013VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 18, 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 18, 2011, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
0.624 ug/l , sample collected Apr 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 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 18, 2011, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2011 – Jun 30, 2011
Collected
Mar 21, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110322-112NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 21, 2011, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 21, 2011, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Feb 22, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110223-025VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
0.949 ug/l , sample collected Feb 22, 2011, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Feb 22, 2011, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Collected
Sep 13, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100914-050NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Sep 13, 2010, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Sep 13, 2010, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Sep 13, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 16, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100817-019TH
Laboratory
MSDH Lab
3.61 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
17.8 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
5.25 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
13.1 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
39.76 ug/l , sample collected Aug 16, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 16, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100817-019HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 16, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Aug 16, 2010, sampling point MRT000 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 16, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 16, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100817-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
0.539 ug/l , sample collected Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 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 Aug 16, 2010, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Aug 16, 2010, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Mar 15, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100317-003IN
Laboratory
MSDH Lab
0.295 mg/l , sample collected Mar 15, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010

Routine (10).