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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

MS0800005 , City of Louisville - Northeast

18 of the 62 analytes this system has been tested for have been detected at least once, across 142 samples on record.

The other 44 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 142 samples on record, detections range from November 3, 2003 to August 5, 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.

Every analyte ever detected for City of Louisville - Northeast, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 52 of 52 results Sep 17, 2008 Aug 15, 2023
Lead 1030 Inorganic Chemical 28 of 52 results Sep 17, 2008 Aug 15, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 22 of 22 results Jun 21, 2004 Aug 5, 2026
Nitrate 1040 Inorganic Chemical 22 of 22 results Jun 21, 2004 Aug 5, 2026
Barium 1010 Inorganic Chemical 10 of 10 results Nov 3, 2003 Apr 8, 2025
Nickel 1036 Inorganic Chemical 10 of 10 results Nov 3, 2003 Apr 8, 2025
Dibromochloromethane 2944 Organic Chemical 7 of 13 results Sep 18, 2007 Apr 28, 2025
TTHM 2950 Organic Chemical 7 of 18 results Sep 18, 2007 Apr 28, 2025
Bromodichloromethane 2943 Organic Chemical 5 of 13 results Sep 18, 2007 Apr 28, 2025
Bromoform 2942 Organic Chemical 3 of 13 results Mar 7, 2024 Apr 28, 2025
Chromium 1020 Inorganic Chemical 3 of 10 results Nov 3, 2003 Apr 8, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 19 results Aug 4, 2010 Aug 13, 2024
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 18, 2019 Mar 20, 2023
Calcium 1016 Inorganic Chemical 1 of 1 result Oct 28, 2021 Oct 28, 2021
Chloride 1017 Inorganic Chemical 1 of 1 result Oct 28, 2021 Oct 28, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 1 of 1 result Oct 28, 2021 Oct 28, 2021
Selenium 1045 Inorganic Chemical 1 of 10 results Apr 5, 2004 Apr 5, 2004
Sulfate 1055 Inorganic Chemical 1 of 3 results Nov 3, 2003 Nov 3, 2003

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 21–30 of 142 samples, newest first — collected March 20, 2023 to August 15, 2023. The summary above covers all 142.

20 results from the 10 samples listed here: 14 detected, 6 not detected. Across the whole record it is 180 of 648. 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 8 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.

Chemical and radiological sample results for City of Louisville - Northeast, every result from 21 to 30 of 142 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Aug 15, 2023 07:40
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230816-063
Laboratory
MSDH Lab
0.0045 mg/l , sample collected Aug 15, 2023 07:40, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 15, 2023 07:40, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 06:30
Sampling point
LC0023 Location withheld
Sample type
Routine
Lab sample
PB-230816-062
Laboratory
MSDH Lab
0.0062 mg/l , sample collected Aug 15, 2023 06:30, sampling point LC0023 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
4.2 ug/l , sample collected Aug 15, 2023 06:30, sampling point LC0023 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 06:20
Sampling point
LC0021 Location withheld
Sample type
Routine
Lab sample
PB-230816-061
Laboratory
MSDH Lab
0.0055 mg/l , sample collected Aug 15, 2023 06:20, sampling point LC0021 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 Aug 15, 2023 06:20, sampling point LC0021 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 07:00
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-230816-056
Laboratory
MSDH Lab
0.001 mg/l , sample collected Aug 15, 2023 07:00, sampling point LC0020 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 Aug 15, 2023 07:00, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 05:30
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-230816-058
Laboratory
MSDH Lab
0.0029 mg/l , sample collected Aug 15, 2023 05:30, sampling point LC0015 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 Aug 15, 2023 05:30, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 07:16
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-230816-059
Laboratory
MSDH Lab
0.0016 mg/l , sample collected Aug 15, 2023 07:16, sampling point LC0019 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 Aug 15, 2023 07:16, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 15, 2023 07:30
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230816-060
Laboratory
MSDH Lab
0.0033 mg/l , sample collected Aug 15, 2023 07:30, sampling point LC0011 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 Aug 15, 2023 07:30, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 14, 2023 17:45
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-230816-057
Laboratory
MSDH Lab
0.0059 mg/l , sample collected Aug 14, 2023 17:45, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
2.3 ug/l , sample collected Aug 14, 2023 17:45, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Mar 20, 2023 13:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-230321-028
Laboratory
MSDH Lab
9.8 mg/l , sample collected Mar 20, 2023 13:30, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded
Collected
Mar 20, 2023 13:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-230321-029
Laboratory
MSDH Lab
0.706 mg/l , sample collected Mar 20, 2023 13:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.706 mg/l , sample collected Mar 20, 2023 13:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 13:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023

Routine (10).