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
MS0180014 , Brooklyn Water Association
20 of the 58 analytes this system has been tested for have been detected at least once, across 305 samples on record.
The other 38 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 305 samples on record, detections range from November 23, 1993 to February 3, 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 |
|---|---|---|---|---|
| Lead 1030 | Inorganic Chemical | 106 of 129 results | Nov 23, 1993 | Jul 11, 2023 |
| Copper, Free 1022 | Inorganic Chemical | 92 of 129 results | Nov 23, 1993 | Jul 11, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 24 of 25 results | Aug 2, 2007 | Apr 26, 2023 |
| TTHM 2950 | Organic Chemical | 23 of 24 results | May 19, 2004 | Apr 26, 2023 |
| Barium 1010 | Inorganic Chemical | 20 of 20 results | Sep 29, 2003 | Feb 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 19 of 20 results | Sep 29, 2003 | Feb 3, 2025 |
| Chloroform 2941 | Organic Chemical | 16 of 17 results | Aug 2, 2007 | Nov 7, 2017 |
| Bromodichloromethane 2943 | Organic Chemical | 15 of 17 results | Aug 2, 2007 | Nov 7, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 12 of 17 results | Feb 26, 2009 | Dec 2, 2020 |
| Dibromochloromethane 2944 | Organic Chemical | 12 of 17 results | Aug 2, 2007 | Nov 17, 2011 |
| Chromium 1020 | Inorganic Chemical | 11 of 20 results | Sep 29, 2003 | Feb 3, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 10 of 17 results | Feb 26, 2009 | Dec 2, 2020 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Mar 7, 2012 | Oct 24, 2012 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Oct 6, 2019 | Jan 29, 2024 |
| Nickel 1036 | Inorganic Chemical | 4 of 20 results | Apr 9, 2008 | Feb 3, 2025 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Sep 29, 2003 | Feb 4, 2004 |
| Cadmium 1015 | Inorganic Chemical | 2 of 20 results | Mar 9, 2005 | Mar 9, 2005 |
| Selenium 1045 | Inorganic Chemical | 2 of 20 results | Mar 9, 2005 | Mar 9, 2005 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 17 results | Sep 30, 2009 | Sep 30, 2009 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 17 results | Sep 30, 2009 | Sep 30, 2009 |
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 301–305 of 305 samples, newest first — collected November 23, 1993 to November 23, 1993. The summary above covers all 305.
10 results from the 5 samples listed here: 6 detected, 4 not detected. 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 0.02 mg/l Method Detection Limit , sample collected Nov 23, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 23, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.196 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.11 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Nov 23, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 23, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 23, 1993, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Nov 23, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931124-032L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Nov 23, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931124-031L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Nov 23, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931124-030L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.196 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Nov 23, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931124-029L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.11 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Nov 23, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931124-028L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (5).