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
MS0040029 , Conehoma Water Assn #2
21 of the 57 analytes this system has been tested for have been detected at least once, across 245 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 245 samples on record, detections range from November 9, 1993 to December 2, 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 | 117 of 152 results | Nov 9, 1993 | Jun 4, 2025 |
| Lead 1030 | Inorganic Chemical | 53 of 152 results | Nov 9, 1993 | Jun 4, 2025 |
| TTHM 2950 | Organic Chemical | 18 of 19 results | May 5, 2004 | Dec 2, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 13 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Chloroform 2941 | Organic Chemical | 12 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 12 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Jan 29, 2002 | Jan 14, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 19 results | Jun 27, 2007 | Feb 26, 2024 |
| Chromium 1020 | Inorganic Chemical | 6 of 11 results | Jan 29, 2002 | Jan 14, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 6 of 14 results | Jul 15, 2008 | May 9, 2024 |
| Nickel 1036 | Inorganic Chemical | 5 of 11 results | Feb 14, 2005 | Sep 19, 2018 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 8, 2011 | Jul 13, 2012 |
| Fluoride 1025 | Inorganic Chemical | 4 of 11 results | Feb 14, 2005 | Jan 14, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 17, 2019 | Oct 15, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 14 results | Jul 15, 2008 | Dec 7, 2023 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 14 results | Jul 15, 2008 | Mar 19, 2019 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Jan 29, 2002 | Jan 14, 2004 |
| Bromoform 2942 | Organic Chemical | 1 of 15 results | Aug 6, 2024 | Aug 6, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Jul 15, 2008 | Jul 15, 2008 |
| Cadmium 1015 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Selenium 1045 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
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 161–170 of 245 samples, newest first — collected August 29, 2001 to January 7, 2004. The summary above covers all 245.
47 results from the 10 samples listed here: 12 detected, 35 not detected. Across the whole record it is 285 of 847. 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 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Xylenes, Total 2955 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Dichloromethane 2964 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | O-Dichlorobenzene 2968 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | P-Dichlorobenzene 2969 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Vinyl Chloride 2976 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,1-Dichloroethylene 2977 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,2-Dichloroethane 2980 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,1,1-Trichloroethane 2981 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Carbon Tetrachloride 2982 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,2-Dichloropropane 2983 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Trichloroethylene 2984 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | 1,1,2-Trichloroethane 2985 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Tetrachloroethylene 2987 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Chlorobenzene 2989 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Benzene 2990 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Toluene 2991 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Ethylbenzene 2992 | Jan 1, 2004 – Mar 31, 2004 |
| Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 7, 2004, sampling point TF101 | Styrene 2996 | Jan 1, 2004 – Mar 31, 2004 |
|
||
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Not recorded |
| 0.041 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Barium 1010 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Not recorded |
| 0.002 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Chromium 1020 EPA method 200.8 | Not recorded |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Mercury 1035 EPA method 200.8 | Not recorded |
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Selenium 1045 EPA method 200.8 | Not recorded |
| 3.32 mg/l , sample collected Jan 29, 2002, sampling point TF101 | Sulfate 1055 EPA method 300.0 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 29, 2002, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 15, 2002, sampling point TF101 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jan 8, 2002, sampling point TF101 | Cyanide 1024 EPA method 335.4 | Jan 1, 2002 – Dec 31, 2004 |
|
||
| 0.019 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.34 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.192 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.017 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.045 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.234 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.007 mg/l , sample collected Aug 29, 2001, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jan 7, 2004
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 040108-010VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2004 – Mar 31, 2004
-
1,2,4-Trichlorobenzene 2378
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Cis-1,2-Dichloroethylene 2380
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Xylenes, Total 2955
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Dichloromethane 2964
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
O-Dichlorobenzene 2968
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
P-Dichlorobenzene 2969
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Vinyl Chloride 2976
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1-Dichloroethylene 2977
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trans-1,2-Dichloroethylene 2979
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloroethane 2980
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,1-Trichloroethane 2981
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Carbon Tetrachloride 2982
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,2-Dichloropropane 2983
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Trichloroethylene 2984
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
1,1,2-Trichloroethane 2985
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Tetrachloroethylene 2987
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Chlorobenzene 2989
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Benzene 2990
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Toluene 2991
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Ethylbenzene 2992
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
Styrene 2996
- Result
- Not detected below 0.0005 mg/l Method Detection Limit
-
- Collected
- Jan 29, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020130-021IN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Barium 1010 EPA method 200.8
- Result
- 0.041 mg/l
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Chromium 1020 EPA method 200.8
- Result
- 0.002 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Sulfate 1055 EPA method 300.0
- Result
- 3.32 mg/l
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0003 mg/l Minimum Reporting Level
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 15, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020116-028CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Jan 8, 2002
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 020109-004CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2002 – Dec 31, 2004
-
Cyanide 1024 EPA method 335.4
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-078PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.019 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-008PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.34 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-007PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.192 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-006PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.017 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-005PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.045 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Aug 29, 2001
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 010830-004PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.234 mg/l
-
Lead 1030
- Result
- 0.007 mg/l
Routine (10).