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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

MS0780016 , Spring Valley Water Assn

6 of the 13 analytes this system has been tested for have been detected at least once, across 46 samples on record.

The other 7 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 46 samples on record, detections range from July 10, 2008 to March 25, 2025. 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 Spring Valley Water Assn, 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 24 of 24 results Jun 22, 2011 Aug 22, 2023
Lead 1030 Inorganic Chemical 22 of 24 results Jun 22, 2011 Aug 22, 2023
TTHM 2950 Organic Chemical 9 of 11 results Jul 10, 2008 Mar 25, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 11 results Aug 31, 2009 Aug 21, 2017
Bromoform 2942 Organic Chemical 2 of 5 results Sep 19, 2011 Aug 21, 2017
Monochloroacetic Acid 2450 Organic Chemical 1 of 6 results Aug 21, 2017 Aug 21, 2017

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

10 results from the 5 samples listed here: 2 detected, 8 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 The location on record identifies a private home, and we do not publish those.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 Spring Valley Water Assn, every result from the 5 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
Dec 3, 2025 14:40
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-174107-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Dec 3, 2025 14:40, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 25, 2025 13:11
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-250326-010
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 25, 2025 13:11, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 25, 2025 13:11
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-250326-009
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 25, 2025 13:11, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 25, 2025 13:11
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-250326-009
Laboratory
MSDH Lab
2.49 ug/l , sample collected Mar 25, 2025 13:11, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 25, 2025 13:07
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-250326-008
Laboratory
MSDH Lab
2.52 ug/l , sample collected Mar 25, 2025 13:07, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025

Routine (5).