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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.

Samples for one analyte

Samples taken for Mercury across the water systems Mississippi State Department of Health serves — where it was looked for, and at which sampling point.

1,921–1,940 of 2,075 samples. From samples collected October 1, 2024 to October 1, 2026. These dates are applied here by default; they are not a limit on what the agency records. Show 5 years, back to October 1, 2021.

Choose a date range

This page can show a range of up to 5 years at a time. That is a limit of this service, not of what the agency records.

Choose water systems

This is where it was looked for

Each row is a sample taken for Mercury. 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.

Samples taken for Mercury across the systems Mississippi State Department of Health serves, 1,921 to 1,940 of 2,075 samples shown. Each row is a sample and carries no result: it says where the analyte was looked for, not what was found.
County Water system Collected Sampling point Sample type
Union Mud Creek Water Association #4, MS0730026 May 12, 2025 TF101 , Treatment Plant T101 Routine
Walthall Improve Water Association, MS0740002 July 30, 2026 TF080 , Treatment Plant T080 Routine
Walthall Improve Water Association, MS0740002 July 30, 2026 TF082 , Treatment Facility TF082 Routine
Walthall Improve Water Association, MS0740002 September 24, 2025 TF080 , Treatment Plant T080 Routine
Walthall Lexie Water Association, Inc., MS0740004 September 22, 2025 TF080 , Treatment Plant T080 Routine
Walthall Town of Tylertown, MS0740005 September 22, 2025 TF080 , Treatment Plant T080 Routine
Walthall Magees Creek W/A-North, MS0740076 September 22, 2025 TF082 , Treatment Plant T082 Routine
Warren Culkin Water Dist, MS0750002 September 22, 2025 TF080 , Treatment Plant T080 Routine
Warren Eagle Lake Water District, MS0750003 September 22, 2025 TF080 , Treatment Plant T080 Routine
Warren Fisher Ferry Water District, MS0750004 August 4, 2026 TF080 Routine
Warren Hilldale Water District, MS0750005 September 25, 2025 TF080 , Treatment Plant T080 Routine
Warren Hilldale Water District, MS0750005 September 25, 2025 TF081 Routine
Warren City of Vicksburg, MS0750010 September 25, 2025 TF080 , Treatment Plant T080 Routine
Washington Town of Arcola, MS0760001 October 14, 2025 TF102 , Treatment Plant T102 Routine
Washington Town of Arcola, MS0760001 October 14, 2025 TF103 , Treatment Plant T103 Routine
Washington Glen Allan Utility District, MS0760003 June 29, 2026 TF103 , Treatment Plant T103 Routine
Washington Glen Allan Utility District, MS0760003 September 22, 2025 TF103 , Treatment Plant T103 Routine
Washington City of Greenville, MS0760004 September 29, 2025 TF108 , Treatment Plant T108 Routine
Washington City of Greenville, MS0760004 September 29, 2025 TF109 , Treatment Plant T109 Routine
Washington City of Greenville, MS0760004 September 29, 2025 TF110 , Treatment Plant T110 Routine