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Florida / Waters /

Hillsborough Bay

Bay in Florida, near Tampa

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.

Square boat markers mark boat launches listed by OpenBoatLaunch.

Get alerts from City of Tampa Wastewater Department (Howard F. Curren Advanced Wastewater Treatment Plant) · 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: a public source (last successful check 2026-11-05 01:05 UTC); a public source (last successful check 2026-11-05 01:05 UTC); Florida DEP Public Notice of Pollution, sewage and wastewater notices (PNP feature service) (last successful check 2026-11-05 01:06 UTC). Status by DirtyWaterWatch, updated 2026-11-05 01:25 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
    1 report: Tampa 1
    Show records

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

  • Discharge or advisory reported: to
    1 report: Tampa 1
    Show records

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

  • Caution: to
    1 report: Tampa 1
    Show records

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

  • Discharge or advisory reported: to
    1 report: Tampa 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 01:25 UTC.

Reported discharges over time

  • Discharges affecting the Hillsborough Bay in Florida, last 12 months77 affecting this water: 7 reported on the Hillsborough Bay; 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 Hillsborough Bay in Florida, last 12 months7Reported on the Hillsborough Bay in Florida: 7 · 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 Hillsborough Bay in Florida, last 12 months192Reported on the Hillsborough Bay in Florida: 192 · 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 Hillsborough Bay in Florida2.2%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 Hillsborough Bay in Florida2Reported on the Hillsborough Bay in Florida: 2 · 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

45 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 4, 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

1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 4, 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 4, 2026.

Show table

Reported discharges per year, 2017 to 2026

80 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 4, 2026.

Show table

Reported volume per year

Gallons (axis: K thousand, M million), summed from the 67 reports that gave a volume as a number (13 did not).

  • Incomplete source coverage

13 of 80 discharge reports gave no volume as a number; only numbers are summed.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 4, 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

1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 4, 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. 1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

Source: fl-dep-pnp. Records cover May 17, 2017 to November 4, 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 4, 2026.

Show table

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 76, 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 4, 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.

  • U.S. Environmental Protection Agency sewer overflow records: records from May 3, 2022 to the latest update (limited records)
  • fl-dep-pnp: records from May 17, 2017 to the latest update

Reports linked to Hillsborough Bay

Reports linked to Hillsborough Bay, newest first
WhenReportStatus
to Sep 29Tampa · Wastewater Overflow near 6601 E. 14 Ave. · SSO · 1,500 gallons report · notice · mapended
to Sep 23Tampa · Wastewater Overflow near 122 S. Rome Ave. · SSO · 1,470 gallons report · notice · mapended
to Jun 26Tampa · Denitrification Filter Overflow June 25, 2026 · Bypass · volume not reported report · notice · mapended
to Apr 23Tampa · Wastewater overflow near 275 Bayshore Blvd. · SSO · 1,275 gallons report · notice · mapended
to Apr 10Tampa · Wastewater overflow near 6601 E. 14 Ave. · SSO · 1,500 gallons report · notice · mapended
to Feb 19Tampa · Wastewater Overflow near 3105 Orient Rd. · SSO · 12,000 gallons report · notice · mapended
to Feb 18Tampa · Wastewater Overflow near 3105 Orient Rd. · SSO · 5,250 gallons report · notice · mapended
to Sep 1 ’25Tampa · wastewater overflow near 2900 N. Himes Ave. · SSO · 1,200 gallons report · notice · mapended
to Feb 13 ’25Tampa · Waste Water overage in Man hole · SSO · 1 gallon report · notice · mapended
to Jan 27 ’25Tampa · wastewater overflow near 1606 E. 24th Ave. · SSO · 1,182 gallons report · notice · mapended
to Jan 22 ’25Tampa · wastewater overflow near 5205 E. Adamo Dr. · SSO · 2,200 gallons report · notice · mapended
to Jan 1 ’25Tampa · wastewater overflow near 1211 N. Marion St. · SSO · 1,950 gallons report · notice · mapended
to Nov 12 ’24Tampa · Wastewater Overflow near 1501 N. Morgan St. · SSO · 4,368 gallons report · notice · mapended
to Oct 16 ’24Tampa · wastewater overflow at 3232 W. Fielder Street · SSO · 7,000 gallons report · notice · mapended
to Oct 13 ’24Tampa · Wastewater overflow near 5608 Terra Ceia Dr. · SSO · 1,000 gallons report · notice · mapended
to Oct 12 ’24Tampa · Wastewater overflow near 3741 Bellewater Blvd · SSO · 2,750 gallons report · notice · mapended
to Oct 14 ’24Grande Oasis at Carrollwood · 10.11.24-10.14.24 · SSO · volume not reported report · notice · mapended
to Oct 12 ’24Tampa · Wastewater overflow near 40th Street and Curtis Street · SSO · 55,000 gallons report · notice · mapended
Tampa · wastewater overflow at 3300 Bayshore Blvd · SSO · volume not reported report · notice · mapongoing
to Oct 11 ’24Tampa · wastewater overflow near 2922 Alline Ave · SSO · volume not reported report · notice · mapended
to Oct 11 ’24Tampa · wastewater overflow at 2922 Coachman Ave · SSO · volume not reported report · notice · mapended
to Oct 10 ’24Tampa · wastewater overflow at 2700 Maritime Blvd · Bypass · 2.93 million gallons report · notice · mapended
to Sep 27 ’24Tampa · wastewater overflow near 2922 W. Alline Ave. · SSO · 41,250 gallons report · notice · mapended
to Sep 28 ’24Tampa · wastewater overflow near 2510W. Conley Ave. · SSO · 4,400 gallons report · notice · mapended
to Sep 27 ’24Tampa · Helene Storm Surge Krause PS · SSO · 6.5 million gallons report · notice · mapended

Sources: Florida DEP Public Notice of Pollution, sewage and wastewater notices (PNP feature service), retrieved 2026-11-04 09:03 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 82 records.See them all with filters.

All reports in Florida by year: 2026 (7 here) · 2025 (5 here) · 2024 (20 here) · 2023 (8 here) · 2022 (5 here) · 2021 (8 here) · 2020 (2 here) · 2019 (15 here) · 2018 (8 here) · 2017 (4 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 Tampa Wastewater Department (Howard F. Curren Advanced Wastewater Treatment Plant), FALKENBURG ROAD AWTP.

Boat launches

Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, Open Database License). · Hillsborough Bay on OpenBoatLaunch

Nearby waters

Sources covering this water

80 records linked to this water, besides 2 earlier versions or duplicates. Updated .