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
MS0340002 , Ellisville State School #1
35 of the 70 analytes this system has been tested for have been detected at least once, across 285 samples on record.
The other 35 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 285 samples on record, detections range from September 24, 2003 to August 3, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 71 of 73 results | Jul 24, 2007 | Aug 3, 2026 |
| Lead 1030 | Inorganic Chemical | 28 of 73 results | Jul 24, 2007 | Aug 22, 2023 |
| Barium 1010 | Inorganic Chemical | 22 of 22 results | Sep 24, 2003 | Jul 6, 2026 |
| Fluoride 1025 | Inorganic Chemical | 21 of 21 results | Sep 24, 2003 | Feb 25, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 18 of 24 results | Jun 5, 2006 | Jun 23, 2025 |
| TTHM 2950 | Organic Chemical | 18 of 21 results | Jun 16, 2004 | Jun 23, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 13 of 17 results | Sep 28, 2009 | Jun 23, 2025 |
| Chloroform 2941 | Organic Chemical | 13 of 16 results | Sep 5, 2007 | Jun 23, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 13 of 16 results | Sep 5, 2007 | Jun 23, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 12 of 65 results | Feb 7, 2005 | Aug 9, 2021 |
| Dichloroacetic Acid 2451 | Organic Chemical | 11 of 17 results | Sep 28, 2009 | Jun 23, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Feb 27, 2018 | Feb 3, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 16 results | Jun 17, 2024 | Jun 23, 2025 |
| Sulfate 1055 | Inorganic Chemical | 5 of 5 results | Sep 24, 2003 | Feb 27, 2018 |
| Chromium 1020 | Inorganic Chemical | 5 of 22 results | Mar 21, 2005 | Apr 13, 2015 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 10 results | Dec 13, 2011 | Jul 18, 2012 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 17 results | Aug 15, 2018 | Sep 10, 2020 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 65 results | Feb 7, 2005 | Sep 28, 2005 |
| Nickel 1036 | Inorganic Chemical | 1 of 20 results | Feb 7, 2024 | Feb 7, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 17 results | Sep 10, 2020 | Sep 10, 2020 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Iron 1028 | Inorganic Chemical | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Color 1905 | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | Feb 27, 2018 | Feb 27, 2018 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 46 results | Jul 25, 2006 | Jul 25, 2006 |
| Nitrate 1040 | Inorganic Chemical | 1 of 46 results | Jul 25, 2006 | Jul 25, 2006 |
| Styrene 2996 | Organic Chemical | 1 of 65 results | Sep 28, 2005 | Sep 28, 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 71–80 of 285 samples, newest first — collected July 14, 2020 to May 10, 2021. The summary above covers all 285.
46 results from the 10 samples listed here: 11 detected, 35 not detected. Across the whole record it is 288 of 2,175. 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 Minimum Reporting Level , sample collected May 10, 2021 15:00, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2021 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 10, 2021 15:45, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2021 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 15, 2021 13:30, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2021 – Mar 31, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:15, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 8, 2021 13:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| 0.003 mg/l , sample collected Sep 10, 2020 03:40, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.007 mg/l , sample collected Sep 10, 2020 03:40, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Sep 10, 2020 03:40, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 0.006 mg/l , sample collected Sep 10, 2020 03:40, 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 10, 2020 03:40, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.024 mg/l , sample collected Sep 10, 2020 03:40, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2020 – Dec 31, 2020 |
|
||
| 17.4 ug/l , sample collected Sep 10, 2020 12:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 10, 2020 12:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.15 ug/l , sample collected Sep 10, 2020 12:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 10, 2020 12:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 20.6 ug/l , sample collected Sep 10, 2020 12:30, sampling point MRT000 | TTHM 2950 | Jan 1, 2020 – Dec 31, 2020 |
|
||
| 0.0635 mg/l , sample collected Jul 14, 2020 05:06, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 14, 2020 05:06, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.008 mg/l , sample collected Jul 14, 2020 05:10, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 14, 2020 05:10, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0725 mg/l , sample collected Jul 14, 2020 05:01, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 14, 2020 05:01, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
-
- Collected
- May 10, 2021 15:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- RU-210511-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2021
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- May 10, 2021 15:45
- Sampling point
- TF103 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- RU-210511-007
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2021
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 15, 2021 13:30
- Sampling point
- TF103 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 210316-008VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Mar 31, 2021
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Mar 8, 2021 13:15
- Sampling point
- TF103 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-210309-057
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 8, 2021 13:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-210309-060
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 10, 2020 03:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 200911-004HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.007 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.008 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 0.006 mg/l
- 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
- 0.024 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
- Collected
- Sep 10, 2020 12:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 200911-004TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 17.4 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
- 3.15 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
- Result
- 20.6 ug/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
- Collected
- Jul 14, 2020 05:06
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200715-010PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0635 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 14, 2020 05:10
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200715-009PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 14, 2020 05:01
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200715-008PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0725 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).