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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

MS0340004 , Erata Water Association

33 of the 72 analytes this system has been tested for have been detected at least once, across 165 samples on record.

The other 39 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 165 samples on record, detections range from September 24, 2003 to July 27, 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 Erata Water Association, 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 62 of 71 results Jul 25, 2007 Jul 27, 2026
Lead 1030 Inorganic Chemical 50 of 71 results Jul 25, 2007 Aug 29, 2023
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Feb 24, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 19 results Aug 7, 2007 Nov 20, 2024
Fluoride 1025 Inorganic Chemical 7 of 11 results Feb 23, 2004 Aug 29, 2022
TTHM 2950 Organic Chemical 6 of 20 results Jun 14, 2004 Jun 3, 2024
Nickel 1036 Inorganic Chemical 5 of 10 results Jan 12, 2009 Aug 29, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 17, 2012
Sodium 1052 Inorganic Chemical 4 of 4 results Jul 6, 2010 Feb 3, 2025
Monochloroacetic Acid 2450 Organic Chemical 4 of 15 results Jul 1, 2015 Nov 20, 2024
Sulfate 1055 Inorganic Chemical 3 of 3 results Sep 24, 2003 Jul 6, 2010
Dibromochloromethane 2944 Organic Chemical 2 of 16 results Jun 3, 2024 Jun 3, 2024
Monobromoacetic Acid 2453 Organic Chemical 2 of 15 results Aug 14, 2018 Jun 15, 2020
Dichloroacetic Acid 2451 Organic Chemical 1 of 15 results Jun 15, 2020 Jun 15, 2020
Calcium 1016 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Chloride 1017 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Iron 1028 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Magnesium 1031 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Manganese 1032 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Potassium 1042 Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Carbon Dioxide 1901 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Color 1905 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Alkalinity, Total 1927 Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jul 6, 2010 Jul 6, 2010
Calculated Sodium NACA Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
PH, Field Result PHFD Water Quality 1 of 1 result Jul 6, 2010 Jul 6, 2010
Dichloromethane 2964 Organic Chemical 1 of 8 results Aug 2, 2004 Aug 2, 2004
Chromium 1020 Inorganic Chemical 1 of 10 results Feb 23, 2004 Feb 23, 2004
Mercury 1035 Inorganic Chemical 1 of 10 results Feb 23, 2004 Feb 23, 2004
Selenium 1045 Inorganic Chemical 1 of 10 results Feb 23, 2004 Feb 23, 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 165 samples, newest first — collected August 29, 2023 to August 13, 2024. The summary above covers all 165.

65 results from the 10 samples listed here: 6 detected, 59 not detected. Across the whole record it is 188 of 722. 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 Erata Water Association, every result from 21 to 30 of 165 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 13, 2024 09:40
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-115894-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2024 – Sep 30, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 09:40, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Jun 3, 2024
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-106781-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2024 – Jun 30, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.61 ug/l , sample collected Jun 3, 2024, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0.61 ug/l , sample collected Jun 3, 2024, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024
Collected
Jun 3, 2024
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-106781-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2024 – Jun 30, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2024, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.56 ug/l , sample collected Jun 3, 2024, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0.56 ug/l , sample collected Jun 3, 2024, sampling point SM1 TTHM 2950 EPA method 524.2 Apr 1, 2024 – Jun 30, 2024
Collected
May 6, 2024 11:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240507-018
Laboratory
MSDH Lab
1.45 ug/l , sample collected May 6, 2024 11:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Dec 31, 2024
Collected
May 6, 2024 11:32
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240507-018
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 6, 2024 11:32, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2024
Collected
Mar 12, 2024 08:30
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-96980-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:30, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Mar 12, 2024 08:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-96980-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Mar 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 12, 2024 08:45, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Feb 12, 2024 11:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-240213-026
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 11:15, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 11:15, 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 Feb 12, 2024 11:15, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Oct 23, 2023 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-231024-002
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 13:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 13:00, 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 Oct 23, 2023 13:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Aug 29, 2023 09:45
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230830-097
Laboratory
MSDH Lab
0.0216 mg/l , sample collected Aug 29, 2023 09:45, sampling point LC0001 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 29, 2023 09:45, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).