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
MS0250014 , Mt Olive Water Association
51 of the 74 analytes this system has been tested for have been detected at least once, across 336 samples on record.
The other 23 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 336 samples on record, detections range from October 18, 1993 to June 25, 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 | 127 of 132 results | Oct 18, 1993 | Jun 30, 2023 |
| Lead 1030 | Inorganic Chemical | 98 of 132 results | Oct 19, 1993 | Jun 30, 2023 |
| Fluoride 1025 | Inorganic Chemical | 24 of 24 results | Sep 15, 2003 | Feb 18, 2025 |
| TTHM 2950 | Organic Chemical | 22 of 22 results | Jun 7, 2004 | Jun 25, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 21 of 24 results | Sep 5, 2007 | Jun 25, 2026 |
| Barium 1010 | Inorganic Chemical | 20 of 20 results | Sep 15, 2003 | Feb 18, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 17 of 18 results | Jul 25, 2013 | Jun 25, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 16 of 18 results | Sep 23, 2008 | Jun 25, 2026 |
| Chloroform 2941 | Organic Chemical | 16 of 17 results | Jul 31, 2007 | Jun 25, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 16 of 17 results | Jul 31, 2007 | Jun 25, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 12 of 17 results | Jul 31, 2007 | May 5, 2025 |
| Sodium 1052 | Inorganic Chemical | 10 of 10 results | Apr 26, 2010 | Feb 7, 2024 |
| Selenium 1045 | Inorganic Chemical | 7 of 20 results | Nov 15, 2004 | Apr 14, 2008 |
| Sulfate 1055 | Inorganic Chemical | 6 of 6 results | Sep 15, 2003 | Mar 11, 2021 |
| Chromium 1020 | Inorganic Chemical | 6 of 20 results | Mar 13, 2005 | Mar 11, 2015 |
| Xylenes, Total 2955 | Organic Chemical | 6 of 54 results | Apr 5, 2004 | Sep 10, 2008 |
| Nickel 1036 | Inorganic Chemical | 6 of 20 results | Sep 15, 2003 | Apr 14, 2008 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 5 of 5 results | Apr 19, 2012 | Jan 23, 2013 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 15, 2011 | Jul 13, 2012 |
| Calcium 1016 | Inorganic Chemical | 4 of 4 results | Apr 26, 2010 | Mar 11, 2021 |
| Chloride 1017 | Inorganic Chemical | 4 of 4 results | Apr 26, 2010 | Mar 11, 2021 |
| Color 1905 | Water Quality | 4 of 4 results | Apr 26, 2010 | Mar 11, 2021 |
| Alkalinity, Total 1927 | Water Quality | 4 of 4 results | Apr 26, 2010 | Mar 11, 2021 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 of 18 results | Jul 25, 2013 | Aug 26, 2020 |
| Bromoform 2942 | Organic Chemical | 3 of 17 results | Jul 25, 2019 | Feb 28, 2024 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 3 of 45 results | Aug 8, 2005 | Feb 19, 2014 |
| Nitrate 1040 | Inorganic Chemical | 3 of 45 results | Aug 8, 2005 | Feb 19, 2014 |
| Carbon Tetrachloride 2982 | Organic Chemical | 3 of 54 results | Oct 18, 2006 | May 21, 2007 |
| Nitrite 1041 | Inorganic Chemical | 3 of 45 results | Aug 8, 2005 | Aug 15, 2006 |
| Cadmium 1015 | Inorganic Chemical | 3 of 20 results | Sep 15, 2003 | Mar 13, 2005 |
| Ethylbenzene 2992 | Organic Chemical | 3 of 54 results | Apr 5, 2004 | Apr 21, 2004 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 2 of 2 results | Mar 11, 2021 | Mar 11, 2021 |
| Magnesium 1031 | Inorganic Chemical | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Manganese 1032 | Inorganic Chemical | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Potassium 1042 | Inorganic Chemical | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Carbon Dioxide 1901 | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Iron, Field Result FEFD | Inorganic Chemical | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Calculated Sodium NACA | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| PH, Field Result PHFD | Water Quality | 2 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Toluene 2991 | Organic Chemical | 2 of 54 results | Apr 21, 2004 | Apr 21, 2004 |
| Antimony, Total 1074 | Inorganic Chemical | 1 of 20 results | Feb 18, 2025 | Feb 18, 2025 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 10 results | Sep 28, 2012 | Sep 28, 2012 |
| Radium-226 4020 | Radionuclide | 1 of 10 results | Sep 28, 2012 | Sep 28, 2012 |
| Radium-228 4030 | Radionuclide | 1 of 10 results | Sep 28, 2012 | Sep 28, 2012 |
| Iron 1028 | Inorganic Chemical | 1 of 2 results | Apr 26, 2010 | Apr 26, 2010 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 18 results | Sep 23, 2008 | Sep 23, 2008 |
| Arsenic 1005 | Inorganic Chemical | 1 of 20 results | Feb 7, 2006 | Feb 7, 2006 |
| Benzene 2990 | Organic Chemical | 1 of 54 results | Sep 21, 2005 | Sep 21, 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 31–40 of 336 samples, newest first — collected May 17, 2022 to June 30, 2023. The summary above covers all 336.
29 results from the 10 samples listed here: 11 detected, 18 not detected. Across the whole record it is 513 of 2,088. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 5 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.382 mg/l , sample collected Jun 30, 2023 07:00, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 30, 2023 07:00, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.473 mg/l , sample collected Jun 29, 2023 22:00, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 0.8 ug/l , sample collected Jun 29, 2023 22:00, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.146 mg/l , sample collected Jun 29, 2023 17:00, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 0.6 ug/l , sample collected Jun 29, 2023 17:00, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0853 mg/l , sample collected Jun 29, 2023 16:07, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2023 16:07, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.108 mg/l , sample collected Jun 29, 2023 12:00, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2023 12:00, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 9.13 ug/l , sample collected May 18, 2023 09:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| 5.52 ug/l , sample collected May 18, 2023 08:40, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:30, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:30, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:48, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:48, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 1, 2023 13:48, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.0164 mg/l , sample collected May 17, 2022 10:45, sampling point TF102 | Barium 1010 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.274 mg/l , sample collected May 17, 2022 10:45, sampling point TF102 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 17, 2022 10:45, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
-
- Collected
- Jun 30, 2023 07:00
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230705-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.382 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 29, 2023 22:00
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230705-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.473 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.8 ug/l
-
- Collected
- Jun 29, 2023 17:00
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230705-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.146 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Jun 29, 2023 16:07
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230705-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0853 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 29, 2023 12:00
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230705-030
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.108 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 18, 2023 09:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230519-004
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 9.13 ug/l
-
- Collected
- May 18, 2023 08:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230519-004
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 5.52 ug/l
-
- Collected
- Feb 1, 2023 13:30
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- NI-230202-051
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
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
- Feb 1, 2023 13:48
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-230202-050
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
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
- May 17, 2022 10:45
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- IN-220517-093
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Barium 1010 EPA method 200.8
- Result
- 0.0164 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.274 mg/l
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
Routine (10).