Florida's surface water criteria for dissolved oxygen (DO) in predominantly marine waters is found in Rule 62-302.533, Florida Administrative Code. Station-by-station analysis of the continuous water quality data that does not meet this criteria are categorized as events, which are displayed in the table below by Aquatic Preserve (AP) station and year. Click the 1-day, 7-day or 30-day link (if available) to view the corresponding graph displaying percent saturation of dissolved oxygen (DO%), DO_event, and the event average. Please allow several seconds for the graphs to render. Straight lines in the graphs represent the duration of the criteria exceedance (see criteria summary below).
Disclaimer: The table and graphs should not be used to directly assess water quality of the water body in which the datasonde is located. Florida criteria assessments are conducted on an entire waterbody, not on a station-by-station basis.
Gray box = no DO measurements were recorded for that station and year.
DO criteria for Florida marine waters (62-302.533 F.A.C.) is summarized below:
1-day average criteria (daily): DO% < 42% in no more than 10% of the values
7-day average criteria (week): DO% < 51% no more than once in any 12-week period
30-day average criteria (month): DO% < 56% no more than once per year
Numbers to the right of the colon represent the number of occurrences that exceed the criteria above (i.e., "1-day: 2" means there were two occurrences that year of DO% dropping below 42% within a 24-hour period).
The number listed after "of" represents the total number of DO sampling days within the given year, which may vary based on data gaps.
Note: Data marked as suspect during secondary QA/QC were not used in these calculations.
AP/Station |
Big Bend Seagrasses/ Kings Bay BBSKB |
Big Bend Seagrasses/ Seahorse Key BBSSK |
Big Bend Seagrasses/ Suwannee BBSSW |
Biscayne Bay/ Little River BBLR03 |
Biscayne Bay/ Tuttle Basin BBBB14 |
Estero Bay/ EB01 |
Estero Bay/ EB02 |
Estero Bay/ EB03 |
Matlacha Pass/ MP1A |
Matlacha Pass/ MP2B |
Matlacha Pass/ MP3C |
Indian River Lagoon/ US 1 IRUS1 |
Indian River Lagoon/ North Prong4 IRNP |
Indian River Lagoon/ C-54 IRC54 |
Indian River Lagoon/ Donald McDonald IRDM |
Northeast/ Clapboard Creek NECC |
Northeast/ Nassau River NENR |
Northeast/ Lofton Creek NELC |
Central Panhandle/ Richardson's Hammock CPRH |
Northwest/ Yellow River YRMAP1 |
Tampa Bay/Terra Ceia/ Bishop Harbor TCBH |
Tampa Bay/Terra Ceia/ Frog Creek TCFC |
2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
of 86 days | of 364 days | 1-day:1 of 366 days | of 364 days | of 293 days | 1-day:1 of 259 days | of 295 days | of 335 days | of 321 days | 1-day:1 of 238 days | |||||||||
of 220 days | 1-day:2 7-day:1 of 42 days | of 143 days | of 359 days | of 362 days | of 329 days | of 364 days | 1-day:2 of 364 days | of 345 days | of 115 days | |||||||||
1-day:7 7-day:6 30-day:3 of 293 days | 7-day:1 of 364 days | of 363 days | 1-day:19 7-day:4 30-day:1 of 299 days | 7-day:2 of 335 days | 1-day:1 7-day:2 30-day:1 of 324 days | 1-day:1 of 338 days | of 143 days | |||||||||||
of 221 days | 1-day:71 7-day:17 30-day:6 of 328 days | 1-day:4 7-day:1 30-day:0 of 353 days | ||||||||||||||||
1-day:2 of 322 days | 1-day:3 of 303 days | of 346 days | ||||||||||||||||
1-day:2 of 170 days | 1-day:1 of 348 days | 1-day:1 of 364 days | 1-day:1 of 356 days | 1-day:18 7-day:9 30-day:3 of 363 days | 1-day:13 7-day:6 30-day:2 of 364 days | 1-day:9 7-day:4 30-day:3 of 364 days | 1-day:7 7-day:3 30-day:1 of 354 days | 1-day:24 7-day:8 30-day:2 of 365 days | 1-day:10 7-day:6 30-day:2 of 364 days | of 363 days | 1-day:22 7-day:3 30-day:0 of 353 days | 1-day:2 7-day:2 30-day:1 of 365 days | of 364 days | of 350 days | of 346 days | of 365 days | of 364 days | |
of 170 days | of 346 days | 1-day:2 of 364 days | 1-day:2 7-day:1 30-day:1 of 339 days | of 347 days | of 364 days | 1-day:1 of 364 days | 1-day:5 7-day:4 30-day:2 of 349 days | 1-day:1 7-day:2 30-day:1 of 363 days | of 334 days | of 147 days | of 351 days | of 356 days | of 365 days | 1-day:2 of 364 days | of 364 days | of 351 days | of 364 days | |
of 24 days | 1-day:2 7-day:1 of 331 days | 1-day:7 7-day:2 30-day:1 of 364 days | 1-day:5 7-day:2 30-day:1 of 362 days | 1-day:1 of 277 days | of 345 days | 1-day:5 7-day:1 of 360 days | 1-day:6 7-day:1 of 364 days | 1-day:6 7-day:1 30-day:1 of 333 days | 1-day:4 7-day:3 30-day:1 of 353 days | 1-day:1 of 355 days | 1-day:1 of 364 days | of 353 days | 1-day:20 7-day:3 30-day:1 of 364 days | 1-day:1 of 362 days | of 328 days | of 347 days | of 348 days | |
of 96 days | 1-day:1 of 364 days | of 360 days | 1-day:2 of 353 days | of 336 days | of 337 days | 1-day:1 of 363 days | 1-day:6 of 329 days | 1-day:1 of 364 days | 1-day:1 of 364 days | 1-day:3 7-day:1 of 364 days | 1-day:2 of 365 days | 1-day:1 of 364 days | 1-day:1 of 364 days | of 364 days | of 359 days | |||
of 96 days | of 358 days | of 364 days | 1-day:1 7-day:1 of 349 days | of 364 days | of 364 days | 1-day:1 7-day:1 of 334 days | of 332 days | of 349 days | of 364 days | 1-day:4 7-day:1 of 364 days | of 365 days | 1-day:1 7-day:1 of 364 days | of 336 days | of 364 days | of 365 days | |||
of 184 days | 1-day:6 of 364 days | 1-day:17 7-day:3 30-day:1 of 337 days | 1-day:12 7-day:2 30-day:1 of 365 days | 1-day:6 of 311 days | 1-day:11 7-day:2 of 364 days | 1-day:3 7-day:1 of 364 days | of 365 days | 1-day:16 7-day:3 30-day:1 of 364 days | of 335 days | 1-day:2 of 340 days | of 267 days | of 266 days | ||||||
1-day:28 7-day:4 30-day:2 of 61 days | of 42 days | 1-day:1 of 360 days | of 328 days | of 352 days | of 6 days | |||||||||||||
1-day:55 7-day:11 30-day:3 of 103 days | 1-day:10 7-day:2 30-day:0 of 62 days | 1-day:11 7-day:3 30-day:3 of 309 days | 1-day:108 7-day:28 30-day:7 of 327 days | 1-day:139 7-day:33 30-day:12 of 300 days | 1-day:58 7-day:15 30-day:5 of 125 days | |||||||||||||
1-day:27 7-day:6 30-day:1 of 103 days | 1-day:3 of 30 days | 1-day:7 7-day:2 of 311 days | 1-day:2 of 137 days | |||||||||||||||
1-day:9 7-day:3 of 103 days | of 75 days | 1-day:5 7-day:2 30-day:2 of 276 days | 1-day:1 of 298 days | of 95 days | ||||||||||||||
1-day:8 7-day:5 30-day:2 of 85 days | 1-day:26 7-day:11 30-day:4 of 364 days | 1-day:47 7-day:13 30-day:4 of 346 days | 1-day:36 7-day:17 30-day:5 of 364 days | 1-day:48 7-day:15 30-day:5 of 342 days | 1-day:67 7-day:20 30-day:6 of 361 days | 1-day:24 7-day:13 30-day:4 of 364 days | of 151 days | |||||||||||
1-day:9 7-day:10 30-day:2 of 153 days | 7-day:4 30-day:2 of 365 days | of 151 days | ||||||||||||||||
1-day:4 7-day:4 30-day:1 of 183 days | 1-day:1 of 353 days | 1-day:10 7-day:5 30-day:2 of 340 days | 1-day:8 7-day:3 30-day:1 of 365 days | 1-day:10 7-day:7 30-day:3 of 356 days | 7-day:1 of 365 days | of 150 days | ||||||||||||
1-day:4 of 158 days | of 349 days | of 360 days | of 361 days | of 364 days | of 360 days | of 129 days | ||||||||||||
1-day:8 of 328 days | 1-day:5 of 365 days | 1-day:6 of 364 days | 1-day:38 7-day:11 30-day:5 of 363 days | of 317 days | ||||||||||||||
1-day:12 7-day:2 30-day:1 of 91 days | 1-day:16 7-day:4 30-day:2 of 34 days | |||||||||||||||||
1-day:86 7-day:14 30-day:3 of 101 days | 1-day:52 7-day:8 30-day:2 of 56 days |