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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

MS0310024 , Tri-County W/A #3-Summerland

16 of the 53 analytes this system has been tested for have been detected at least once, across 207 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 207 samples on record, detections range from September 24, 2003 to February 12, 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 Tri-County W/A #3-Summerland, 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 60 of 60 results Jul 24, 2007 Jul 19, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 39 of 43 results May 17, 2004 Feb 9, 2026
Nitrate 1040 Inorganic Chemical 39 of 43 results May 17, 2004 Feb 9, 2026
Lead 1030 Inorganic Chemical 23 of 60 results Jul 24, 2007 Jul 19, 2023
Barium 1010 Inorganic Chemical 15 of 16 results Sep 24, 2003 Mar 3, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 19 results Aug 7, 2007 Apr 8, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 24, 2019 Feb 3, 2025
Nickel 1036 Inorganic Chemical 6 of 16 results Dec 3, 2007 Mar 25, 2019
Chromium 1020 Inorganic Chemical 4 of 16 results Feb 13, 2006 Mar 25, 2019
TTHM 2950 Organic Chemical 3 of 20 results Aug 7, 2007 Feb 12, 2026
Dibromochloromethane 2944 Organic Chemical 1 of 15 results Feb 12, 2026 Feb 12, 2026
Dichloroacetic Acid 2451 Organic Chemical 1 of 13 results Feb 3, 2025 Feb 3, 2025
Trichloroacetic Acid 2452 Organic Chemical 1 of 13 results Feb 3, 2025 Feb 3, 2025
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Aug 8, 2018 Aug 8, 2018
Fluoride 1025 Inorganic Chemical 1 of 16 results Feb 13, 2006 Feb 13, 2006
Dichloromethane 2964 Organic Chemical 1 of 28 results Aug 4, 2004 Aug 4, 2004

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 207 samples, newest first — collected July 19, 2023 to May 28, 2024. The summary above covers all 207.

29 results from the 10 samples listed here: 15 detected, 14 not detected. Across the whole record it is 209 of 1,210. 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 3 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 Tri-County W/A #3-Summerland, every result from 21 to 30 of 207 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 28, 2024 08:46
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240529-005
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 28, 2024 08:46, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 2, 2024 15:50
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240503-005
Laboratory
MSDH Lab
21.2 ug/l , sample collected May 2, 2024 15:50, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Apr 1, 2024 09:40
Sampling point
TF081
Sample type
Routine
Lab sample
NI-240401-002
Laboratory
MSDH Lab
1.77 mg/l , sample collected Apr 1, 2024 09:40, sampling point TF081 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
1.77 mg/l , sample collected Apr 1, 2024 09:40, sampling point TF081 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 1, 2024 09:40, sampling point TF081 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Apr 1, 2024 10:01
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-240401-001
Laboratory
MSDH Lab
0.358 mg/l , sample collected Apr 1, 2024 10:01, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
0.358 mg/l , sample collected Apr 1, 2024 10:01, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 1, 2024 10:01, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 10, 2024 09:00
Sampling point
TF081
Sample type
Routine
Lab sample
IN-240111-031
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.0176 mg/l , sample collected Jan 10, 2024 09:00, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 09:00, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 19, 2023 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230720-075
Laboratory
MSDH Lab
0.405 mg/l , sample collected Jul 19, 2023 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.5 ug/l , sample collected Jul 19, 2023 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 19, 2023 05:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230720-071
Laboratory
MSDH Lab
0.519 mg/l , sample collected Jul 19, 2023 05:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.8 ug/l , sample collected Jul 19, 2023 05:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 19, 2023 04:00
Sampling point
LC0026 Location withheld
Sample type
Routine
Lab sample
PB-230720-070
Laboratory
MSDH Lab
0.0162 mg/l , sample collected Jul 19, 2023 04:00, sampling point LC0026 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Jul 19, 2023 04:00, sampling point LC0026 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 19, 2023 06:25
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230720-068
Laboratory
MSDH Lab
0.637 mg/l , sample collected Jul 19, 2023 06:25, sampling point LC0016 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 Jul 19, 2023 06:25, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 19, 2023 06:00
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-230720-067
Laboratory
MSDH Lab
0.239 mg/l , sample collected Jul 19, 2023 06:00, sampling point LC0017 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
2.7 ug/l , sample collected Jul 19, 2023 06:00, sampling point LC0017 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).