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
MS0310008 , Montrose Water Association
39 of the 72 analytes this system has been tested for have been detected at least once, across 226 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 226 samples on record, detections range from June 9, 2003 to April 1, 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 | 53 of 53 results | Aug 4, 2004 | Aug 20, 2024 |
| Lead 1030 | Inorganic Chemical | 41 of 53 results | Aug 4, 2004 | Aug 20, 2024 |
| Barium 1010 | Inorganic Chemical | 15 of 15 results | Sep 24, 2003 | Feb 25, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 12 of 52 results | May 7, 2008 | Jun 14, 2022 |
| Nickel 1036 | Inorganic Chemical | 11 of 15 results | Feb 23, 2004 | Feb 25, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 20, 2011 | Jul 31, 2012 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 11 results | Aug 7, 2007 | Apr 1, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 10 results | Sep 6, 2007 | Apr 1, 2025 |
| Sodium 1052 | Inorganic Chemical | 8 of 8 results | May 25, 2017 | Feb 4, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 15 results | Sep 24, 2003 | May 22, 2017 |
| Chloroform 2941 | Organic Chemical | 4 of 5 results | Sep 6, 2007 | Aug 7, 2018 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 5 results | Jun 24, 2015 | Aug 7, 2018 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 5 results | Sep 6, 2007 | Aug 7, 2018 |
| Sulfate 1055 | Inorganic Chemical | 3 of 4 results | Sep 24, 2003 | May 25, 2017 |
| Fluoride 1025 | Inorganic Chemical | 2 of 17 results | May 25, 2017 | Jan 10, 2024 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 5 results | Sep 6, 2007 | Aug 7, 2018 |
| Calcium 1016 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Chloride 1017 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Iron 1028 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Magnesium 1031 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Manganese 1032 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Potassium 1042 | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Carbon Dioxide 1901 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Color 1905 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Alkalinity, Total 1927 | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Iron, Field Result FEFD | Inorganic Chemical | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Calculated Sodium NACA | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| PH, Field Result PHFD | Water Quality | 2 of 2 results | May 25, 2017 | May 25, 2017 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 52 results | May 7, 2008 | May 7, 2009 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 2 of 44 results | Jun 9, 2003 | Nov 24, 2003 |
| Nitrate 1040 | Inorganic Chemical | 2 of 44 results | Jun 9, 2003 | Nov 24, 2003 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Aug 7, 2018 | Aug 7, 2018 |
| Cyanide 1024 | Inorganic Chemical | 1 of 15 results | May 16, 2017 | May 16, 2017 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 5 results | Jun 24, 2015 | Jun 24, 2015 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 5 results | Jun 24, 2015 | Jun 24, 2015 |
| Nitrite 1041 | Inorganic Chemical | 1 of 44 results | Jun 9, 2003 | Jun 9, 2003 |
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 226 samples, newest first — collected June 28, 2007 to October 18, 2007. The summary above covers all 226.
22 results from the 10 samples listed here: 21 detected, 1 not detected. Across the whole record it is 231 of 1,669. 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 |
|---|---|---|
|
||
| 0.1032 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0043 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.0468 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0012 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.3643 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0014 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.9746 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0434 mg/l , sample collected Oct 18, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 1.48 ug/l , sample collected Sep 6, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 6, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.47 ug/l , sample collected Sep 6, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.96 ug/l , sample collected Sep 6, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 4.91 ug/l , sample collected Sep 6, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| 0.0023 mg/l 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 Aug 7, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| 0.1417 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.002 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.0658 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0015 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.2956 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0053 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
|
||
| 0.2015 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
| 0.0082 mg/l , sample collected Jun 28, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2007 – Dec 31, 2009 |
-
- Collected
- Oct 18, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 071019-094PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1032 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0043 mg/l
-
- Collected
- Oct 18, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 071019-093PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0468 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Oct 18, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 071019-092PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3643 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Oct 18, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 071019-091PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.9746 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0434 mg/l
-
- Collected
- Sep 6, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070907-004TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.48 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
- 1.47 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.96 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 4.91 ug/l
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
- Collected
- Aug 7, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070808-008HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0023 mg/l 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.
-
- Collected
- Jun 28, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070629-127PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1417 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.002 mg/l
-
- Collected
- Jun 28, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070629-124PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0658 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- Jun 28, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070629-117PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2956 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0053 mg/l
-
- Collected
- Jun 28, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070629-119PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2009
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0082 mg/l
Routine (10).