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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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The 9 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

72 results from the 9 samples listed here: 14 detected, 58 not detected. 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 2 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 the 9 samples on record, 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 5, 2026
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
35056399001
Laboratory
Pace Analytical Services, LLC
550 mg/l , sample collected Aug 5, 2026, sampling point TF080 Nitrate-Nitrite 1038 Not recorded
550 mg/l , sample collected Aug 5, 2026, sampling point TF080 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 10 mg/l Minimum Reporting Level , sample collected Aug 5, 2026, sampling point TF080 Nitrite 1041 EPA method 353.2 Not recorded
Collected
Dec 10, 2025 10:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-251211-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 10, 2025 10:15, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 23, 2025 09:12
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-165162-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2025 09:12, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Apr 28, 2025 08:35
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-146351-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:35, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
0.64 ug/l , sample collected Apr 28, 2025 08:35, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
0.55 ug/l , sample collected Apr 28, 2025 08:35, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.89 ug/l , sample collected Apr 28, 2025 08:35, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.08 ug/l , sample collected Apr 28, 2025 08:35, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
Apr 28, 2025 08:10
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-146351-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 28, 2025 08:10, sampling point SM1 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
Apr 14, 2025 13:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250415-049
Laboratory
MSDH Lab
0.68 mg/l , sample collected Apr 14, 2025 13:45, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.68 mg/l , sample collected Apr 14, 2025 13:45, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2025 13:45, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Apr 8, 2025 13:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250409-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0154 mg/l , sample collected Apr 8, 2025 13:25, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.001 mg/l , sample collected Apr 8, 2025 13:25, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
0.0012 mg/l , sample collected Apr 8, 2025 13:25, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2025 13:25, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Nov 6, 2024 08:25
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-127030-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:25, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
0.68 ug/l , sample collected Nov 6, 2024 08:25, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.64 ug/l , sample collected Nov 6, 2024 08:25, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.32 ug/l , sample collected Nov 6, 2024 08:25, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Nov 6, 2024 08:43
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-127030-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 08:43, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (9).