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.
Samples for one analyte
Samples taken for Cyanide across the water systems Mississippi State Department of Health serves — where it was looked for, and at which sampling point.
521–540 of 2,098 samples. From samples collected September 27, 2024 to September 27, 2026. These dates are applied here by default; they are not a limit on what the agency records. Show 5 years, back to September 27, 2021.
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This is where it was looked for
Each row is a sample taken for Cyanide. These rows carry no result and no measured amount — a row means the analyte was sampled for at that point, not that it was found there.
Which analytes a system has detected, and when, is on that system’s own sample results page, reachable from its record.
| County | Water system | Collected | Sampling point | Sample type |
|---|---|---|---|---|
| Harrison | Keesler Air Force Base, MS0240049 | April 30, 2025 | TF117 , Treatment Facility TF117 | Routine |
| Harrison | Lakewood Environmental, MS0240052 | August 25, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | Pass Christian Isles, MS0240066 | August 25, 2025 | TF103 , Treatment Plant T103 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | August 25, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | August 25, 2025 | TF104 , Treatment Plant T104 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | August 25, 2025 | TF105 , Treatment Plant T105 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | August 25, 2025 | TF106 , Treatment Plant T106 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | August 25, 2025 | TF107 , Treatment Plant T107 | Routine |
| Harrison | City of Biloxi-North, MS0240084 | October 23, 2024 | TF108 | Routine |
| Harrison | Tuxachanie Estates #2, MS0240089 | August 14, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | Lizana Elementary School, MS0240135 | August 14, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | Lizana Elementary School, MS0240135 | August 14, 2025 | TF102 , Treatment Plant T102 | Routine |
| Harrison | Harrison Central High School, MS0240154 | August 14, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | Riverbend Utilities Inc, MS0240194 | August 19, 2025 | TF102 , Treatment Plant T102 | Routine |
| Harrison | Riverbend Utilities Inc, MS0240194 | August 19, 2025 | TF103 , Treatment Plant T103 | Routine |
| Harrison | Robinwood Forest Utility Inc, MS0240212 | August 19, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | Robinwood Forest Utility Inc, MS0240212 | August 19, 2025 | TF102 , Treatment Plant T102 | Routine |
| Harrison | McGill Wellworks, Inc, MS0240214 | April 29, 2025 | TF101 , Treatment Plant T101 | Routine |
| Harrison | McGill Wellworks, Inc, MS0240214 | October 21, 2024 | TF102 | Routine |
| Harrison | The Chemours Company FC, LLC, MS0240232 | August 18, 2025 | TF101 , Treatment Plant T101 | Routine |