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.
| 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 151–160 of 195 samples, newest first — collected January 28, 2009 to March 8, 2010. The summary above covers all 195.
48 results from the 10 samples listed here: 29 detected, 19 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 8, 2010, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.004 mg/l , sample collected Nov 16, 2009, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Nov 16, 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 Nov 16, 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 Nov 16, 2009, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Nov 16, 2009, 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 Nov 16, 2009, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Oct 1, 2009 – Dec 31, 2009 |
|
||
| 2.37 ug/l , sample collected Nov 16, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 16, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.07 ug/l , sample collected Nov 16, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 16, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 3.44 ug/l , sample collected Nov 16, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2009 – Dec 31, 2009 |
|
||
| 4.55 ug/l , sample collected Jul 22, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 2.48 ug/l , sample collected Jul 22, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.13 ug/l , sample collected Jul 22, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 3.53 ug/l , sample collected Jul 22, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 13.69 ug/l , sample collected Jul 22, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jul 1, 2009 – Sep 30, 2009 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 22, 2009, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Jul 22, 2009, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jul 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 Jul 22, 2009, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jul 22, 2009, 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 Jul 22, 2009, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jul 1, 2009 – Sep 30, 2009 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF101 | 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 May 18, 2009, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 18, 2009, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected May 18, 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 May 18, 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 May 18, 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 May 18, 2009, 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 May 18, 2009, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Apr 1, 2009 – Jun 30, 2009 |
|
||
| 2.19 ug/l , sample collected May 18, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 18, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 18, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 18, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 2.19 ug/l , sample collected May 18, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2009 – Jun 30, 2009 |
|
||
| 4.66 ug/l , sample collected Jan 28, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 25.3 ug/l , sample collected Jan 28, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 4.99 ug/l , sample collected Jan 28, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 11.5 ug/l , sample collected Jan 28, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 46.45 ug/l , sample collected Jan 28, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2009 – Mar 31, 2009 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jan 28, 2009, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jan 28, 2009, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Jan 28, 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 Jan 28, 2009, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.009 mg/l , sample collected Jan 28, 2009, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.01 mg/l , sample collected Jan 28, 2009, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2009 – Mar 31, 2009 |
-
- Collected
- Mar 8, 2010
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 100309-038CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Nov 16, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 091117-013HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 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.
- Monitoring period
- Oct 1, 2009 – Dec 31, 2009
-
- Collected
- Nov 16, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 091117-013TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.37 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.07 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.44 ug/l
- Monitoring period
- Oct 1, 2009 – Dec 31, 2009
-
- Collected
- Jul 22, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090723-012TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 4.55 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 2.48 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3.13 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 3.53 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 13.69 ug/l
- Monitoring period
- Jul 1, 2009 – Sep 30, 2009
-
- Collected
- Jul 22, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090723-012HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 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.
- Monitoring period
- Jul 1, 2009 – Sep 30, 2009
-
- Collected
- May 18, 2009
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 090519-057NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
-
- Collected
- May 18, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090519-015HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 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.
- Monitoring period
- Apr 1, 2009 – Jun 30, 2009
-
- Collected
- May 18, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090519-016TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.19 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.19 ug/l
- Monitoring period
- Apr 1, 2009 – Jun 30, 2009
-
- Collected
- Jan 28, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090129-009TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 4.66 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 25.3 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 4.99 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 11.5 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 46.45 ug/l
- Monitoring period
- Jan 1, 2009 – Mar 31, 2009
-
- Collected
- Jan 28, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090129-009HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.009 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.01 mg/l
- Monitoring period
- Jan 1, 2009 – Mar 31, 2009
Routine (10).