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Florida / Waters /

Massalina Bayou

Bay in Florida, near Panama City

Current status

No current status shown

No current status is assigned to this water outline. Check the water page for reports and any estimated downstream stretches. Why this status, and its source

Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.

Get alerts from City of Panama City (Millville AWT and St Andrews WWTF) · Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

No current status shown: no report we track sets a status on this water now; how statuses work. No status does not mean the water is safe. Follow posted signs and local health advice.

Sources checked: Florida DEP Public Notice of Pollution, sewage and wastewater notices (PNP feature service) (last successful check 2026-11-05 06:09 UTC). Status by DirtyWaterWatch, updated 2026-11-05 06:27 UTC. · Updated

The last 90 days

Last 90 days, hour by hour. Red: discharge or advisory reported. Amber: caution. Hatched amber: end not confirmed. Plum: algal bloom advisory. Red or amber with a light line inside: beach advisory or caution. Dotted: monthly report (days with discharge, dates not given). Grey: no current status on the water outline. Purple hatching: source update overdue.
  • Caution: to
    2 reports: Panama City 2
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    3 reports: Panama City 3
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Panama City 1
    Show records

    The records are also in the report table on this page.

Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-05 06:27 UTC.

Reported discharges over time

  • Discharges affecting the Massalina Bayou in Florida, last 12 months2424 affecting this water: 24 reported on the Massalina Bayou; none arriving from upstreamDecember 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once. Arriving discharges are estimated from modeled downstream reaches.
  • Days with a discharge affecting the Massalina Bayou in Florida, last 12 months22Reported on the Massalina Bayou in Florida: 22 · Arriving from outfalls upstream, estimated: 0 (counted apart; together they need not equal the total)December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status on the Massalina Bayou in Florida, last 12 months504Reported on the Massalina Bayou in Florida: 504 · Arriving from outfalls upstream, estimated: 0December 2025 to November 2026Red hours by the map's rules: each discharge to its reported end plus the state's post-discharge period; overlapping hours count once.
  • 2026 season with a discharge or advisory status on the Massalina Bayou in Florida9.8%May to October 2026Share of May 1 to October 31 hours with red status by the map's rules, of the hours a source covered.
  • Records behind the last-90-days strip for the Massalina Bayou in Florida6Reported on the Massalina Bayou in Florida: 6 · Arriving from outfalls upstream, estimated: 0last 90 daysEvery distinct record the strip lists for its red, yellow and unresolved hours, notices and unresolved reports included; counted as the strip counts them.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater. Outfall: a pipe or outlet where wastewater enters a water body.

Reported discharges per month

60 reported discharges, January 2022 to November 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other

Source: fl-dep-pnp. Records cover January 1, 2022 to November 5, 2026.

Show table

Hours with a discharge or advisory status per month

Hours when this water had a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported

3 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Days with a reported discharge per month

A day counts when any counted discharge was under way on it, from its start to its reported end in Eastern Time; a report with no end counts its start day.

Source: fl-dep-pnp. Records cover January 1, 2022 to November 5, 2026.

Show table

Reported discharges per year, 2017 to 2026

79 reported discharges, 2017 to 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other
  • Incomplete source coverage

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Reported volume per year

Gallons (axis: K thousand, M million), summed from the 78 reports that gave a volume as a number (1 did not).

  • Incomplete source coverage

1 of 79 discharge reports gave no volume as a number; only numbers are summed.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Hours with a discharge or advisory status per year

Hours with a discharge or advisory status each year under DirtyWaterWatch rules; 2026 to date.

  • Discharge or advisory reported
  • Incomplete source coverage

3 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Share of the May to October season with a discharge or advisory status

Share of the hours from May 1 to October 31 with a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported
  • Season with incomplete source coverage

Seasons with incomplete source coverage: 2017. The share is of the hours a source covered. 3 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Reported discharges by calendar month, all years

Every counted discharge report, by the calendar month it began.

Months are summed over every year a tracked source covers; the table gives the number of years behind each month.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 52, all years. Counts depend on reporting coverage and do not measure legal compliance or harm.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 5, 2026.

Show table
How these charts are counted

We count each discharge once. Where a source publishes notices and confirmed reports, we use confirmed reports for an operator's month when available; otherwise we use notices. We combine revisions and exclude duplicate state reports copied by the U.S. Environmental Protection Agency (EPA). Monthly and yearly totals appear separately. Status hours follow this site's rules. Shaded gaps mean missing coverage, not zero discharges.

  • fl-dep-pnp: records from May 17, 2017 to the latest update

Reports linked to Massalina Bayou

Reports linked to Massalina Bayou, newest first
WhenReportStatus
to Oct 20Panama City · 530 E 6th St Ls 41 - 10.20.26 · SSO · 105 gallons report · notice · mapended
to Oct 18Panama City · Ls 41 · Bypass · 300 gallons report · notice · mapended
to Oct 14Panama City · 530 E 6th St · Bypass · 405 gallons report · notice · mapended
to Oct 11Panama City · 530 E 6th St Ls # 41 · SSO · 9,000 gallons report · notice · mapended
to Oct 10Panama City · 1517 W 23rd St · SSO · 2,700 gallons report · notice · mapended
to Oct 10Panama City · 300 Massalina Dr Ls 79 · SSO · 10,275 gallons report · notice · mapended
to Jul 17Panama City · 530 E 6th St · SSO · 25 gallons report · notice · mapended
to Jul 16Panama City · 530 E 6th St · SSO · 250 gallons report · notice · mapended
to Jul 10Panama City · 530 E 6th St Ls 41 - 07.10.26 Swo Id 2026-6641 · SSO · 30 gallons report · notice · mapended
to Jun 14Panama City · 530 E 6th St Ls 41 5.14.2026 · SSO · 575 gallons report · notice · mapended
to Jun 4Panama City · 530 E 6th St Ls 41 -06.03.2026 Swo Id 2026-5341 · Bypass · 7,500 gallons report · notice · mapended
to Jun 3Panama City · 530 E 6th St Ls 41 -06.03.2026 Swo Id 2026-05282 · Bypass · 400 gallons report · notice · mapended
to Jun 1Panama City · 530 E 6th St · SSO · 7,900 gallons report · notice · mapended
to May 31Panama City · 530 E 6th St · SSO · 1,925 gallons report · notice · mapended
to May 29Panama City · 530 E 6th St · SSO · 70 gallons report · notice · mapended
to May 27Panama City · 530 E 6th St · Bypass · 4,515 gallons report · notice · mapended
to May 26Panama City · 530 E 6th St · SSO · 890 gallons report · notice · mapended
to May 15Panama City · 530 E 6th St Ls 41 5.15.2026 · SSO · 1,750 gallons report · notice · mapended
to May 5Panama City · 530 E 6th St Ls 41 · SSO · 1,015 gallons report · notice · mapended
to May 4Panama City · 530 E 6th St · SSO · 1,050 gallons report · notice · mapended
to Feb 19Panama City · 530 E 6th St Ls 41 · Bypass · 2,425 gallons report · notice · mapended
to Feb 17Panama City · 530 E 6th St Ls 41 · SSO · 4,200 gallons report · notice · mapended
to Dec 17 ’25Panama City · 350 Massalina Dr · SSO · 225 gallons report · notice · mapended
to Dec 13 ’25Panama City · Ls#79 · SSO · 5,400 gallons report · notice · mapended
to Jun 14 ’25Panama City · 530 E 6TH St · SSO · 1,425 gallons report · notice · mapended

Sources: Florida DEP Public Notice of Pollution, sewage and wastewater notices (PNP feature service), retrieved 2026-11-05 06:08 UTC. A report's record id and times show when you hover or focus its "report" link.

Download these reports as CSV

Showing the latest 25 records of 79 records.See them all with filters.

All reports in Florida by year: 2026 (22 here) · 2025 (4 here) · 2024 (12 here) · 2023 (11 here) · 2022 (11 here) · 2021 (9 here) · 2020 (4 here) · 2019 (4 here) · 2018 (1 here) · 2017 (1 here)

Wastewater outlets on this water

No wastewater outlet in our records is linked to this water.

Sewer operators listed for this water: City of Panama City (Millville AWT and St Andrews WWTF).

Boat launches

No public boat launch is listed in our records for this water.

Nearby waters

Sources covering this water

79 records linked to this water. Updated .