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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

MS0420041 , Blue Lake Water Assn. Inc

10 of the 13 analytes this system has been tested for have been detected at least once, across 59 samples on record.

The other 3 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 59 samples on record, detections range from September 23, 2004 to May 7, 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.

Every analyte ever detected for Blue Lake Water Assn. Inc, 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 37 of 37 results Sep 23, 2004 Sep 7, 2023
Lead 1030 Inorganic Chemical 22 of 37 results Sep 23, 2004 Sep 7, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 11 results Jun 14, 2007 May 7, 2025
TTHM 2950 Organic Chemical 10 of 11 results Jun 14, 2007 May 7, 2025
Dichloroacetic Acid 2451 Organic Chemical 5 of 6 results Jul 2, 2008 Aug 30, 2017
Chloroform 2941 Organic Chemical 5 of 7 results Jul 2, 2008 Aug 30, 2017
Trichloroacetic Acid 2452 Organic Chemical 4 of 6 results Jun 28, 2011 Aug 30, 2017
Bromodichloromethane 2943 Organic Chemical 3 of 7 results Jun 28, 2011 Aug 30, 2017
Dibromochloromethane 2944 Organic Chemical 1 of 7 results Jun 28, 2011 Jun 28, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 6 results Jul 2, 2008 Jul 2, 2008

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 1–10 of 59 samples, newest first — collected September 9, 2021 to May 7, 2025. The summary above covers all 59.

15 results from the 10 samples listed here: 13 detected, 2 not detected. Across the whole record it is 98 of 154. 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 6 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 Blue Lake Water Assn. Inc, every result from 1 to 10 of 59 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
May 7, 2025 12:20
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-250508-001
Laboratory
MSDH Lab
4.84 ug/l , sample collected May 7, 2025 12:20, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2027
Collected
May 7, 2025 12:20
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-250508-001
Laboratory
MSDH Lab
13.7 ug/l , sample collected May 7, 2025 12:20, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2027
Collected
Sep 7, 2023 08:00
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230908-005
Laboratory
MSDH Lab
0.0059 mg/l , sample collected Sep 7, 2023 08:00, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Sep 7, 2023 08:00, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 7, 2023 07:30
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-230908-004
Laboratory
MSDH Lab
0.0034 mg/l , sample collected Sep 7, 2023 07:30, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Sep 7, 2023 07:30, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 7, 2023 07:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230908-003
Laboratory
MSDH Lab
0.0022 mg/l , sample collected Sep 7, 2023 07:00, sampling point LC0003 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 7, 2023 07:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 7, 2023 06:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230908-002
Laboratory
MSDH Lab
0.0021 mg/l , sample collected Sep 7, 2023 06:00, sampling point LC0002 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 7, 2023 06:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 7, 2023 04:45
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230908-001
Laboratory
MSDH Lab
0.0065 mg/l , sample collected Sep 7, 2023 04:45, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.9 ug/l , sample collected Sep 7, 2023 04:45, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Dec 13, 2022 12:10
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-221214-024
Laboratory
MSDH Lab
5.23 ug/l , sample collected Dec 13, 2022 12:10, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Dec 31, 2024
Collected
Dec 13, 2022 12:10
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-221214-024
Laboratory
MSDH Lab
5.93 ug/l , sample collected Dec 13, 2022 12:10, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 9, 2021 12:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210910-001
Laboratory
MSDH Lab
9.72 ug/l , sample collected Sep 9, 2021 12:15, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2019 – Dec 31, 2021

Routine (10).