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
MS0580004 , Oak Hill Water Assn
35 of the 72 analytes this system has been tested for have been detected at least once, across 333 samples on record.
The other 37 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 333 samples on record, detections range from October 15, 2003 to June 23, 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 | 62 of 62 results | Sep 25, 2007 | Sep 13, 2023 |
| Barium 1010 | Inorganic Chemical | 38 of 38 results | Oct 15, 2003 | Jun 23, 2026 |
| Fluoride 1025 | Inorganic Chemical | 30 of 39 results | Oct 15, 2003 | Jun 23, 2026 |
| Nickel 1036 | Inorganic Chemical | 29 of 37 results | Mar 15, 2004 | Mar 18, 2025 |
| Chromium 1020 | Inorganic Chemical | 24 of 38 results | Oct 15, 2003 | Mar 24, 2020 |
| Arsenic 1005 | Inorganic Chemical | 21 of 38 results | Mar 15, 2004 | Mar 18, 2025 |
| Lead 1030 | Inorganic Chemical | 21 of 62 results | Sep 25, 2007 | Sep 13, 2023 |
| TTHM 2950 | Organic Chemical | 17 of 19 results | Jul 26, 2004 | Sep 10, 2025 |
| Sodium 1052 | Inorganic Chemical | 14 of 14 results | May 12, 2016 | Jun 23, 2026 |
| Bromoform 2942 | Organic Chemical | 12 of 15 results | Jun 29, 2010 | Sep 10, 2025 |
| Selenium 1045 | Inorganic Chemical | 11 of 38 results | Mar 15, 2004 | May 9, 2017 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 12, 2011 | Oct 11, 2012 |
| Sulfate 1055 | Inorganic Chemical | 8 of 9 results | Oct 15, 2003 | May 12, 2016 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 15 results | Mar 13, 2024 | Sep 10, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 5 of 43 results | Aug 18, 2010 | Sep 6, 2022 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 2 of 19 results | Jun 29, 2010 | Apr 22, 2019 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 43 results | May 9, 2018 | Aug 21, 2018 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 2 of 12 results | Sep 20, 2012 | Dec 10, 2012 |
| Radium-226 4020 | Radionuclide | 2 of 12 results | Sep 20, 2012 | Dec 10, 2012 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 15 results | Apr 22, 2019 | Apr 22, 2019 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Iron 1028 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Carbon Dioxide 1901 | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Color 1905 | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | May 12, 2016 | May 12, 2016 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 2 results | Dec 10, 2012 | Dec 10, 2012 |
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 41–50 of 333 samples, newest first — collected March 13, 2023 to September 13, 2023. The summary above covers all 333.
20 results from the 10 samples listed here: 6 detected, 14 not detected. Across the whole record it is 331 of 2,009. 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 |
|---|---|---|
|
||
| 0.399 mg/l , sample collected Sep 13, 2023 03:45, sampling point DS000 | 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 Sep 13, 2023 03:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.175 mg/l , sample collected Sep 13, 2023 08:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 0.7 ug/l , sample collected Sep 13, 2023 08:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.158 mg/l , sample collected Sep 13, 2023 04:50, sampling point DS000 | 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 Sep 13, 2023 04:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.341 mg/l , sample collected Sep 13, 2023 07:30, sampling point DS000 | 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 Sep 13, 2023 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 12:35, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2021 – Dec 31, 2023 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2023 13:57, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 1.6 ug/l , sample collected Jun 26, 2023 13:57, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:35, sampling point TF106 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:35, sampling point TF106 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:35, sampling point TF106 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:15, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:15, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:15, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:53, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:53, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2023 12:53, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
-
- Collected
- Sep 13, 2023 03:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-230914-169
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.399 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 13, 2023 08:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-230914-168
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.175 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 13, 2023 04:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-230914-167
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.158 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Sep 13, 2023 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-230914-166
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.341 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 10, 2023 12:35
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-230711-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 26, 2023 13:57
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230627-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jun 26, 2023 13:57
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230627-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 1.6 ug/l
-
- Collected
- Mar 13, 2023 12:35
- Sampling point
- TF106 Treatment Facility TF106
- Sample type
- Routine
- Lab sample
- NI-230314-052
- 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
- Mar 13, 2023 12:15
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- NI-230314-051
- 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
- Mar 13, 2023 12:53
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-230314-050
- 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
Routine (10).