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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.

Nitrate-Nitrite results

MS0080001 , Black Hawk Water Assn #1

44 samples have been analysed for Nitrate-Nitrite at Black Hawk Water Assn #1.

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-Nitrite result

The table below lists 1–10 of 44 samples, newest first — collected January 20, 2021 to June 22, 2026.

10 Nitrate-Nitrite results from the 10 samples listed here: 3 detected, 7 not detected. Those samples also carried 20 results for other analytes, which are on the full results page.

Nitrate-Nitrite results for Black Hawk Water Assn #1, from 1 to 10 of 44 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Jun 22, 2026
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
35045852001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 22, 2026, sampling point TF102 Nitrate-Nitrite 1038 Not recorded
Collected
Jan 14, 2025 15:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250115-007
Laboratory
MSDH Lab
0.442 mg/l , sample collected Jan 14, 2025 15:10, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jan 14, 2025 15:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250115-008
Laboratory
MSDH Lab
0.442 mg/l , sample collected Jan 14, 2025 15:10, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jan 9, 2024 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-240109-054
Laboratory
MSDH Lab
0.425 mg/l , sample collected Jan 9, 2024 14:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 18, 2023 13:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230119-042
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2023 13:50, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 18, 2023 13:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230119-041
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2023 13:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 19, 2022 09:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-220120-076
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 19, 2022 09:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jan 19, 2022 09:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-220120-057
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 19, 2022 09:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jan 20, 2021 14:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-210121-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:45, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jan 20, 2021 11:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210121-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 11:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021

Routine (10).