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.
Nitrate results
MS0450016 , West Madison Utl Dist
31 samples have been analysed for Nitrate at West Madison Utl Dist.
This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.
What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.
No date range is applied: this list draws on every sample on record. Show the last two years only.
Every Nitrate result
The table below lists 1–10 of 31 samples, newest first — collected March 8, 2017 to June 23, 2026.
10 Nitrate results from the 10 samples listed here: 0 detected, 10 not detected. Those samples also carried 52 results for other analytes, which are on the full results page.
| Result | Analyte | Monitoring period |
|---|---|---|
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| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 23, 2026, sampling point TF103 | Nitrate 1040 EPA method 353.2 | Apr 1, 2026 – Jun 30, 2026 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 13, 2025 09:14, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 28, 2024 07:30, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 28, 2023 16:30, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 2, 2022 16:10, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 31, 2021 09:45, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 3, 2020 14:10, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2020 – Dec 31, 2020 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 13, 2019 16:00, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2018 16:10, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
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| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 8, 2017 14:30, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
-
- Collected
- Jun 23, 2026
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 35046260001
- Laboratory
- Pace Analytical Services, LLC
- Monitoring period
- Apr 1, 2026 – Jun 30, 2026
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
-
- Collected
- Mar 13, 2025 09:14
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-250313-462
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Mar 28, 2024 07:30
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-240328-053
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Feb 28, 2023 16:30
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-230301-127
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Mar 2, 2022 16:10
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-220303-066
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Mar 31, 2021 09:45
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-210401-056
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Dec 3, 2020 14:10
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-201204-020
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Nov 13, 2019 16:00
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 191114-020NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Mar 7, 2018 16:10
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 180308-067NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
- Collected
- Mar 8, 2017 14:30
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- 170309-099NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
Routine (10).