Florida Administrative Code › 62 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 62 - Departmental › Chapter 62-302 - SURFACE WATER QUALITY STANDARDS › Section 62-302.532 - Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion

Current through Reg. 50, No. 138; July 16, 2024
(1) Estuary-specific numeric interpretations
				of the narrative nutrient criterion in paragraph
				 62-302.530(47)(b),
				F.A.C., are in the table below. The concentration-based estuary interpretations
				are open water, area-wide averages. Numeric values listed below for nutrient
				and nutrient response values do not apply to wetlands or to tidal tributaries
				that fluctuate between predominantly marine and predominantly fresh waters
				during typical climatic and hydrologic conditions unless specifically provided
				by name below. The interpretations expressed as load per million cubic meters
				of freshwater inflow are the total load of that nutrient to the estuary divided
				by the total volume of freshwater inflow to that estuary. The numeric values
				listed below will be superseded if, pursuant to subsection
				 62-302.531(2),
				F.A.C., a more recent numeric interpretation of the narrative nutrient
				criterion in paragraph
				 62-302.530(47)(b),
				F.A.C., such as a Level II Water Quality Based Effluent Limitation (WQBEL),
				Site Specific Alternative Criterion (SSAC), Total Maximum Daily Load (TMDL), or
				Reasonable Assurance Demonstration, is established by the Department.
Estuary
Total Phosphorus
Total Nitrogen
Chlorophyll
a
(a) Clearwater Harbor/St. Joseph Sound
Criteria expressed as annual geometric mean (AGM)
							 values are not to be exceeded more than once in a three year period. Nutrient
							 and nutrient response values do not apply to tidally influenced areas that
							 fluctuate between predominantly marine and predominantly fresh waters during
							 typical climatic and hydrologic conditions.
1. St. Joseph Sound
0.05 mg/L as AGM
0.66 mg/L as AGM
3.1 µg/L as AGM
2. Clearwater North
0.05 mg/L as AGM
0.61 mg/L as AGM
5.4 µg/L as AGM
3. Clearwater South
0.06 mg/L as AGM
0.58 mg/L as AGM
7.6 µg/L as AGM
(b) Tampa Bay
Criteria expressed as ton/million cubic meters of
							 water are annual totals and are not to be exceeded more than once in a three
							 year period. Criteria expressed as annual means are arithmetic means and are
							 not to be exceeded more than once in a three year period. For criteria
							 expressed as the long-term average of annual means, the long-term average shall
							 be based on data from the most recent seven-year period and shall not be
							 exceeded. Nutrient and nutrient response values do not apply to tidally
							 influenced areas that fluctuate between predominantly marine and predominantly
							 fresh waters during typical climatic and hydrologic conditions.
1. Old Tampa Bay
0.23 tons/million cubic meters of water
1.08 tons/million cubic meters of water
9.3 µg/L as annual mean
2. Hillsborough Bay
1.28 tons/million cubic meters of water
1.62 tons/million cubic meters of water
15.0 µg/L as annual mean
3. Middle Tampa Bay
0.24 tons/million cubic meters of water
1.24 tons/million cubic meters of water
8.5 µg/L as annual mean
4. Lower Tampa Bay
0.14 tons/million cubic meters of water
0.97 tons/million cubic meters of water
5.1 µg/L as annual mean
5. Boca Ciega North
0.18 tons/million cubic meters of water
1.54 tons/million cubic meters of water
8.3 µg/L as annual mean
6. Boca Ciega South
0.06 tons/million cubic meters of water
0.97 tons/million cubic meters of water
6.3 µg/L as annual mean
7. Terra Ceia Bay
0.14 tons/million cubic meters of water
1.10 tons/million cubic meters of water
8.7 µg/L as annual mean
8. Manatee River Estuary
0.37 tons/million cubic meters of water
1.80 tons/million cubic meters of water
8.8 µg/L as annual mean
9. Alafia River Estuary
0.86 mg/L as long-term average of annual means
See subsection
							  62-304.605(2),
							 F.A.C.
15.0 µg/L as long-term average of annual
							 means
(c) Sarasota Bay
Criteria expressed as annual geometric mean (AGM)
							 values for nutrients and annual arithmetic means for chlorophyll
a
are not to be exceeded more than once in a three year
							 period. Nutrient and nutrient response values do not apply to tidally
							 influenced areas that fluctuate between predominantly marine and predominantly
							 fresh waters during typical climatic and hydrologic conditions.
1. Palma Sola Bay
0.26 mg/L as AGM
0.93 mg/L as AGM
11.8 µg/L as AGM
2. Sarasota Bay (Total Phosphorus and Chlorophyll
a
)
0.19 mg/L as AGM
See paragraph
							  62-302.532(i),
							 F.A.C.
6.1 µg/L as AGM
3. Roberts Bay
0.23 mg/L as AGM
0.54 mg/L as AGM
11.0 µg/L as AGM
4. Little Sarasota Bay
0.21 mg/L as AGM
0.60 mg/L as AGM
10.4 µg/L as AGM
5. Blackburn Bay
0.21 mg/L as AGM
0.43 mg/L as AGM
8.2 µg/L as AGM
(d) Charlotte Harbor/Estero Bay
Criteria expressed as annual means are arithmetic
							 means and are not to be exceeded more than once in a three year period. For
							 criteria expressed as long-term averages, the long-term average shall be based
							 on data from the most recent seven-year period and shall not be exceeded.
							 Criteria expressed as annual geometric means (AGM) are not be exceeded more
							 than once in a three year period. For criteria expressed as not to be exceeded
							 in more than 10 percent of the samples, the criteria shall be assessed over the
							 most recent seven year period. Nutrient and nutrient response values do not
							 apply to tidally influenced areas that fluctuate between predominantly marine
							 and predominantly fresh waters during typical climatic and hydrologic
							 conditions.
1. Dona and Roberts Bay
0.18 mg/L as annual mean
0.42 mg/L as annual mean
4.9 µg/L as annual mean
2. Upper Lemon Bay
0.26 mg/L as annual mean
0.56 mg/L as annual mean
8.9 µg/L as annual mean
3. Lower Lemon Bay
0.17 mg/L as annual mean
0.62 mg/L as annual mean
6.1 µg/L as annual mean
4. Charlotte Harbor Proper
0.19 mg/L as annual mean
0.67 mg/L as annual mean
6.1 µg/L as annual mean
5. Pine Island Sound
0.06 mg/L as annual mean
0.57 mg/L as annual mean
6.5 µg/L as annual mean
6. San Carlos Bay
0.045 mg/L as long-term average
0.44 mg/L as long-term average
3.7 µg/L as long-term average
7. Tidal Myakka River
0.31 mg/L as annual mean
1.02 mg/L as annual mean
11.7 µg/L as annual mean
8. Tidal Peace River
0.50 mg/L as annual mean
1.08 mg/L as annual mean
12.6 µg/L as annual mean
9. Matlacha Pass
0.08 mg/L as annual mean
0.58 mg/L as annual mean
6.1 µg/L as annual mean
10. Estero Bay (including Tidal Imperial
							 River)
0.07 mg/L as annual mean
0.63 mg/L as annual mean
5.9 µg/L as annual mean
11. Little Hickory Bay
0.070 mg/L as AGM
0.63 mg/L as AGM
5.9 µg/L as AGM
12. Water Turkey Bay
0.057 mg/L as AGM
0.47 mg/L as AGM
5.8 µg/L as AGM
13. Moorings Bay
0.040 mg/L, not to be exceeded in more than ten
							 percent of the samples
0.85 mg/L, not to be exceeded in more than ten
							 percent of the samples
8.1 µg/L as AGM
14. Upper Caloosahatchee River Estuary
0.086 mg/L as long-term average
See subsection
							  62-304.800(2),
							 F.A.C.
4.2 µg/L as long-term average
15. Middle Caloosahatchee River Estuary
0.055 mg/L as long-term average
See subsection
							  62-304.800(2),
							 F.A.C.
6.5 µg/L as long-term average
16. Lower Caloosahatchee River Estuary
0.040 mg/L as long-term average
See subsection
							  62-304.800(2),
							 F.A.C.
5.6 µg/L as long-term average
(e) Tidal Cocohatchee River/Ten Thousand
							 Islands
Criteria expressed as annual geometric means (AGM)
							 are not to be exceeded more than once in a three year period.
1. Tidal Cocohatchee River
0.057 mg/L as AGM
0.47 mg/L as AGM
5.8 µg/L as AGM
2. Collier Inshore
0.032 mg/L as AGM
0.25 mg/L as AGM
3.1 µg/L as AGM
3. Rookery Bay/Marco Island
0.046 mg/L as AGM
0.30 mg/L as AGM
4.9 µg/L as AGM
4. Naples Bay
0.045 mg/L as AGM
0.57mg/L as AGM
4.3 µg/L as AGM
5. Inner Gulf Shelf
0.018 mg/L as AGM
0.29 mg/L as AGM
1.6 µg/L as AGM
6. Middle Gulf Shelf
0.016 mg/L as AGM
0.26 mg/L as AGM
1.4 µg/L as AGM
7. Outer Gulf Shelf
0.013 mg/L as AGM
0.22 mg/L as AGM
1.0 µg/L as AGM
8. Blackwater River
0.053 mg/L as AGM
0.41 mg/L as AGM
4.1 µg/L as AGM
9. Coastal Transition Zone
0.034 mg/L as AGM
0.61 mg/L as AGM
3.9 µg/L as AGM
10. Gulf Islands
0.038 mg/L as AGM
0.44 mg/L as AGM
3.4 µg/L as AGM
11. Inner Waterway
0.033 mg/L as AGM
0.69 mg/L as AGM
5.2 µg/L as AGM
12. Mangrove Rivers
0.021 mg/L as AGM
0.71 mg/L as AGM
3.7 µg/L as AGM
13. Ponce de Leon
0.024 mg/L as AGM
0.52 mg/L as AGM
3.0 µg/L as AGM
14. Shark River Mouth
0.022 mg/L as AGM
0.75 mg/L as AGM
2.2 µg/L as AGM
15. Whitewater Bay
0.026 mg/L as AGM
0.82 mg/L as AGM
4.1 µg/L as AGM
(f) Florida Bay
Criteria expressed as annual geometric means (AGM)
							 are not to be exceeded more than once in a three year period.
1. Central Florida Bay
0.019 mg/L as AGM
0.99 mg/L as AGM
2.2 µg/L as AGM
2. Coastal Lakes
0.045 mg/L as AGM
1.29 mg/L as AGM
9.3 µg/L as AGM
3. East Central Florida Bay
0.007 mg/L as AGM
0.65 mg/L as AGM
0.4 µg/L as AGM
4. Northern Florida Bay
0.010 mg/L as AGM
0.68 mg/L as AGM
0.8 µg/L as AGM
5. Southern Florida Bay
0.009 mg/L as AGM
0.64 mg/L as AGM
0.8 µg/L as AGM
6. Western Florida Bay
0.015 mg/L as AGM
0.37 mg/L as AGM
1.4 µg/L as AGM
(g) Florida Keys
Criteria expressed as annual geometric means (AGM)
							 are not to be exceeded more than once in a three year period.
1. Back Bay
0.009 mg/L as AGM
0.25 mg/L as AGM
0.3 µg/L as AGM
2. Backshelf
0.011 mg/L as AGM
0.23 mg/L as AGM
0.7 µg/L as AGM
3. Lower Keys
0.008 mg/L as AGM
0.21 mg/L as AGM
0.3 µg/L as AGM
4. Marquesas
0.008 mg/L as AGM
0.21 mg/L as AGM
0.6 µg/L as AGM
5. Middle Keys
0.007 mg/L as AGM
0.22 mg/L as AGM
0.3 µg/L as AGM
6. Oceanside
0.007 mg/L as AGM
0.17 mg/L as AGM
0.3 µg/L as AGM
7. Upper Keys
0.007 mg/L as AGM
0.18 mg/L as AGM
0.2 µg/L as AGM
(h) Biscayne Bay
Criteria expressed as annual geometric means (AGM)
							 are not to be exceeded more than once in a three year period.
1. Card Sound
0.008 mg/L as AGM
0.33 mg/L as AGM
0.5 µg/L as AGM
2. Manatee Bay - Barnes Sound
0.007 mg/L as AGM
0.58 mg/L as AGM
0.4 µg/L as AGM
3. North Central Inshore
0.007 mg/L as AGM
0.31 mg/L as AGM
0.5 µg/L as AGM
4. North Central Outer-Bay
0.008 mg/L as AGM
0.28 mg/L as AGM
0.7 µg/L as AGM
5. Northern North Bay
0.012 mg/L as AGM
0.30 mg/L as AGM
1.7 µg/L as AGM
6. South Central Inshore
0.007 mg/L as AGM
0.48 mg/L as AGM
0.4 µg/L as AGM
7. South Central Mid-Bay
0.007 mg/L as AGM
0.35 mg/L as AGM
0.2 µg/L as AGM
8. South Central Outer-Bay
0.006 mg/L as AGM
0.24 mg/L as AGM
0.2 µg/L as AGM
9. Southern North Bay
0.010 mg/L as AGM
0.29 mg/L as AGM
1.1 µg/L as AGM
(i) Sarasota Bay
For TN, the annual geometric mean target is
							 calculated from monthly arithmetic mean color by region and season. Annual
							 geometric means that shall not be exceeded more than once in a three year
							 period. The Sarasota Bay regions are defined as north (Manatee County) and
							 south (Sarasota County). The wet season for Sarasota Bay is defined as July
							 through October and the dry season is defined as all other months of the year.
							 The seasonal region targets are calculated using monthly color data and shall
							 be calculated as follows:
NWi
=Ln[(13.35-(0.32*
CNi
))/3.58]
NDi
=Ln[(10.39-(0.32*
CNi)
)/3.58]
SWi
=Ln[(8.51-(0.32*
CSi,
)/3.58]
SDi
=Ln[(5.55-(0.32*
CSi)
)/3.58]
Where,
NWi
is the TN
							 target for
ith
month calculated for
							 the north region during the wet season
NDi
is the TN
							 target for
ith
month calculated for
							 the north region during the dry season
SWi
is the TN
							 target for
ith
month calculated for
							 the south region during the wet season
SDi
is the TN
							 target for
ith
month calculated for
							 the south region during the dry season
CNi
is the
							 arithmetic mean color during the ith month within
							 the north region
CSi
is the
							 arithmetic mean color during the ith month within
							 the south region
The annual TN target is calculated as the geometric
							 mean of all monthly regional and season targets as follows:
Click to view
							 image
Nutrient and nutrient response values do not apply to
							 tidally influenced areas that fluctuate between predominantly marine and
							 predominantly fresh waters during typical climatic and hydrologic
							 conditions.
(j) Clam Bay (Collier County)
No more than 10 percent of the individual Total
							 Phosphorus (TP) or Total Nitrogen (TN) measurements shall exceed the respective
							 TP Upper Limit or TN Upper Limit.
TP Upper Limit (mg/L) = e 
							 (-1.06256- 0.0000328465 *Conductivity
								(µS))
TN Upper Limit (mg/L) = 2.3601 - 0.0000268325
							 *Conductivity (µS)
Estuary
Total Phosphorus
Total Nitrogen
Chlorophyll
a
(k) Perdido Bay
Criteria expressed as annual geometric means (AGM)
							 are not to be exceeded more than once in a three year period. For all other bay
							 segments, the criteria shall not be exceeded in more than 10 percent of the
							 measurements and shall be assessed over the most recent seven year period.
							 Nutrient and nutrient response values do not apply to tidally influenced areas
							 that fluctuate between predominantly marine and predominantly fresh waters
							 during typical climatic and hydrologic conditions.
1. Big Lagoon
0.036 mg/L as AGM
0.61 mg/L as AGM
6.4 µg/L
(l) Pensacola Bay
For bay segments with criteria expressed as annual
							 geometric means (AGM), the values shall not be exceeded more than once in a
							 three year period. For criteria expressed as the long-term average of annual
							 means, the long-term average shall be based on data from the most recent
							 seven-year period and shall not be exceeded. For all other bay segments, the
							 criteria shall not be exceeded in more than 10 percent of the measurements.
							 Nutrient and nutrient response values do not apply to tidally influenced areas
							 that fluctuate between predominantly marine and predominantly fresh waters
							 during typical climatic and hydrologic conditions.
1. Lower Escambia Bay
0.076 mg/L
0.56 mg/L as AGM
6.8 g/L as AGM
2. East Bay
0.084 mg/L
0.83 mg/L
4.0 µg/L as AGM
3. Upper Pensacola Bay
0.084 mg/L
0.77 mg/L
6.0 µg/L as AGM
4. Lower Pensacola Bay
0.024 mg/L as AGM
0.48 mg/L as AGM
3.9 µg/L as AGM
5. Santa Rosa Sound
0.022 mg/L as AGM
0.41 mg/L as AGM
3.4 µg/L as AGM
6. Blackwater Bay
0.082 mg/L
0.61 mg/L
11.3 µg/L
7. Upper Escambia Bay and Judges
							 Bayou
See subsection
							  62-304.330(10),
							 F.A.C.
See subsection
							  62-304.330(10),
							 F.A.C.
7.4 g/L as long-term average of annual
							 means
(m) Choctawhatchee Bay
For bay segments with criteria expressed as annual
							 geometric means (AGM), the values shall not be exceeded more than once in a
							 three year period. For all other bay segments, the criteria shall not be
							 exceeded in more than 10 percent of the measurements. Nutrient and nutrient
							 response values do not apply to tidally influenced areas that fluctuate between
							 predominantly marine and predominantly fresh waters during typical climatic and
							 hydrologic conditions.
1. Alaqua Bayou
0.027 mg/L as AGM
0.41 mg/L as AGM
4.0 µg/L as AGM
2. Basin Bayou
0.019 mg/L as AGM
0.31 mg/L as AGM
4.7 µg/L
3. Boggy Bayou
0.015 mg/L as AGM
0.33 mg/L as AGM
3.0 µg/L as AGM
4. East Bay
0.027 mg/L as AGM
0.46 mg/L as AGM
4.4 µg/L as AGM
5. Garnier Bayou
0.017 mg/L as AGM
0.91 mg/L as AGM
4.0 µg/L as AGM
6. LaGrange Bayou
0.029 mg/L as AGM
0.58 mg/L as AGM
5.1 µg/L as AGM
7. Middle Bay
0.020 mg/L as AGM
0.36 mg/L as AGM
3.1 µg/L as AGM
8. Rocky Bayou
0.016 mg/L as AGM
0.33 mg/L as AGM
3.1 µg/L as AGM
9. West Bay
0.049 mg/L as AGM
0.54 mg/L as AGM
4.1 µg/L as AGM
(n) St. Andrew Bay
Criteria for all bay segments are expressed as annual
							 geometric mean (AGM) values not to be exceeded more than once in a three year
							 period. Nutrient and nutrient response values do not apply to tidally
							 influenced areas that fluctuate between predominantly marine and predominantly
							 fresh waters during typical climatic and hydrologic conditions.
1. East Bay
0.016 mg/L as AGM
0.33 mg/L as AGM
3.9 µg/L as AGM
2. North Bay
0.014 mg/L as AGM
0.28 mg/L as AGM
3.1 µg/L as AGM
3. St. Andrew Bay
0.019 mg/L as AGM
0.34 mg/L as AGM
3.7 µg/L as AGM
4. West Bay
0.017 mg/L as AGM
0.35 mg/L as AGM
3.8 µg/L as AGM
5. Crooked Island Sound
0.019 mg/L as AGM
0.34 mg/L as AGM
3.7 µg/L as AGM
(o) St. Joseph Bay
Criteria for all bay segments are expressed as annual
							 geometric mean (AGM) values not to be exceeded more than once in a three year
							 period. Nutrient and nutrient response values do not apply to tidally
							 influenced areas that fluctuate between predominantly marine and predominantly
							 fresh waters during typical climatic and hydrologic conditions.
St. Joseph Bay
0.021 mg/L as AGM
0.34 mg/L as AGM
3.8 µg/L as AGM
(p) Apalachicola Bay and Alligator Harbor
For bay segments with criteria expressed as annual
							 geometric means (AGM), the values shall not be exceeded more than once in a
							 three year period. For all other bay segments, the criteria shall not be
							 exceeded in more than 10 percent of the measurements and shall be assessed over
							 the most recent seven year period. Nutrient and nutrient response values do not
							 apply to tidally influenced areas that fluctuate between predominantly marine
							 and predominantly fresh waters during typical climatic and hydrologic
							 conditions.
1. Apalachicola Bay
0.063 mg/L as AGM
0.84 mg/L as AGM
8.4 µg/L as AGM
2. St. George Sound
0.083 mg/L
0.92 mg/L
6.1 µg/L as AGM
3. East Bay
0.101 mg/L
1.12 mg/L
9.7 µg/L as AGM
4. St. Vincent Sound
0.116 mg/L
1.10 mg/L
17.4 µg/L
5. Apalachicola Offshore
0.032 mg/L
0.57 mg/L
8.2 µg/L
6. Alligator Harbor
0.028 mg/L as AGM
0.42 mg/L as AGM
6.0 µg/L as AGM
Estuary
Total Phosphorus
Total Nitrogen
Chlorophyll a
(q) Loxahatchee River Estuary
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For all other estuary segments, the criteria shall not
							 be exceeded in more than 10 percent of the measurements and shall be assessed
							 over the most recent seven year period.
1. Lower Loxahatchee
0.032 mg/L as AGM
0.63 mg/L as AGM
1.8 µg/L as AGM
2. Middle Loxahatchee
0.030 mg/L as AGM
0.80 mg/L as AGM
4.0 µg/L as AGM
3. Upper Loxahatchee
0.075 mg/L as AGM
1.26 mg/L as AGM
5.5 µg/L as AGM
4. Loxahatchee River Estuary (Southwest Fork)
0.075 mg/L as AGM
1.26 mg/L as AGM
5.5 µg/L as AGM
(r) Lake Worth Lagoon
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For all other estuary segments, the criteria shall not
							 be exceeded in more than 10 percent of the measurements.
1. Northern Lake Worth Lagoon
0.044 mg/L as AGM
0.54 mg/L as AGM
2.9 µg/L as AGM
2. Central Lake Worth Lagoon
0.049 mg/L as AGM
0.66 mg/L as AGM
10.2 µg/L
3. Southern Lake Worth Lagoon
0.050 mg/L as AGM
0.59 mg/L as AGM
5.7 µg/L as AGM
(s) Halifax River Estuary and Tomoka River
							 Estuary
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. Criteria expressed as annual means are not to be
							 exceeded in any year.
1. Lower Halifax River Estuary
0.142 mg/L as AGM
0.72 mg/L as AGM
6.2 µg/L as AGM
2. Upper Halifax River Estuary
See subsection
							  62-304.435(5),
							 F.A.C.
See subsection
							  62-304.435(5),
							 F.A.C.
9.0 µg/L as annual mean
3. Tomoka River Estuary
0.132 mg/L as AGM
1.24 mg/L as AGM
7.2 µg/L as AGM
4. Tomoka Basin
0.105 mg/L as AGM
1.20 mg/L as AGM
7.1 µg/L as AGM
(t) Guana River/Tolomato River/Matanzas River (GTM)
							 Estuary
Criteria for all estuary segments are expressed as
							 annual geometric mean values (AGM) not to be exceeded more than once in a three
							 year period.
1. Tolomato
0.105 mg/L as AGM
0.65 mg/L as AGM
6.6 µg/L as AGM
2. North Matanzas
0.110 mg/L as AGM
0.55 mg/L as AGM
4.0 µg/L as AGM
3. South Matanzas
0.111 mg/L as AGM
0.53 mg/L as AGM
5.5 µg/L as AGM
4. Pellicer Creek Estuary
0.123 mg/L as AGM
1.10 mg/L as AGM
4.3 µg/L as AGM
(u) Nassau River Estuary
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For all other estuary segments, the criteria shall not
							 be exceeded in more than 10 percent of the measurements.
1. Ft. George River Estuary
0.107 mg/L as AGM
0.60 mg/L as AGM
5.9 µg/L as AGM
2. Lower Nassau
0.107 mg/L as AGM
0.80mg/L as AGM
17.5 µg/L
3. Middle Nassau
0.137 mg/L as AGM
0.83 mg/L as AGM
17.1 µg/L
4. Upper Nassau
0.191 mg/L as AGM
1.29 mg/L as AGM
4.7 µg/L as AGM
(v) Suwannee, Waccasassa, and Withlacoochee River
							 Estuaries
For estuary segments with criteria expressed as
							 single value annual geometric means (AGM), the values shall not be exceeded
							 more than once in a three year period. For estuary segments with criteria
							 expressed as a salinity dependent equation, the annual nutrient criteria are
							 expressed as annual geometric means applied to individual monitoring stations
							 by solving the applicable equation below using the annual arithmetic average
							 salinity (AASal) in practical salinity units (PSU) for the station. The AASal
							 shall be calculated as the annual mean of the salinity measurements for each
							 station made in conjunction with the collection of the nutrient samples. For
							 criteria expressed as a salinity dependent equation, no more than 10 percent of
							 the monitoring stations within the segment shall exceed the limit (expressed as
							 AGM) on an annual basis, more than once in a three year period.
1. Suwannee Offshore
TP as AGM = -0.0035*AASal + 0.1402
TN as AGM = -0.0328*AASal + 1.4177
5.7 µg/L as AGM
2. Waccasassa Offshore
0.063 mg/L as AGM
0.69 mg/L as AGM
5.6 µg/L as AGM
3. Withlacoochee Offshore
TP as AGM = -0.0021*AASal + 0.0942
TN as AGM = -0.0183*AASal + 0.9720
4.9 µg/L as AGM
(w) Springs Coast (Crystal River to Anclote
							 River)
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period.
1. Anclote Offshore
0.014 mg/L as AGM
0.42 mg/L as AGM
1.7 µg/L as AGM
2. Anclote River Estuary
0.063 mg/L as AGM
0.65 mg/L as AGM
3.8 µg/L as AGM
3. Aripeka and Hudson Offshore
0.008 mg/L as AGM
0.45 mg/L as AGM
0.8 µg/L as AGM
4. Chassahowitzka NWR
0.015 mg/L as AGM
0.55 mg/L as AGM
2.0 µg/L as AGM
5. Chassahowitzka Offshore
0.011 mg/L as AGM
0.46 mg/L as AGM
1.5 µg/L as AGM
6. Chassahowitzka River Estuary
0.021 mg/L as AGM
0.44 mg/L as AGM
3.9 µg/L as AGM
7. Crystal Offshore
0.034 mg/L as AGM
0.40 mg/L as AGM
2.4 µg/L as AGM
8. Crystal River Estuary
0.047 mg/L as AGM
0.37 mg/L as AGM
4.4 µg/L as AGM
9. Homosassa Offshore
0.012 mg/L as AGM
0.46 mg/L as AGM
1.3 µg/L as AGM
10. Homosassa River Estuary
0.028 mg/L as AGM
0.51 mg/L as AGM
7.7 µg/L as AGM
11. Pithlachascotee Offshore
0.010 mg/L as AGM
0.47 mg/L as AGM
1.0 µg/L as AGM
12. Pithlachascotee River Estuary
0.034 mg/L as AGM
0.65 mg/L as AGM
4.0 µg/L as AGM
13. St. Martins Marsh
0.031 mg/L as AGM
0.51 mg/L as AGM
3.2 µg/L as AGM
14. Weeki Wachee Offshore
0.017 mg/L as AGM
0.54 mg/L as AGM
1.2 µg/L as AGM
15. Weeki Wachee River Estuary
0.019 mg/L as AGM
0.60 mg/L as AGM
1.9 µg/L as AGM
16. Anclote Bayou
0.063 mg/L as AGM
0.65 mg/L as AGM
3.8 µg/L as AGM
17. Kings Bay
See subsection
							  62-304.645(17),
							 F.A.C.
See subsection
							  62-304.645(17),
							 F.A.C.
5.7 µg/L as AGM
(x) Big Bend and Apalachee Bay
For bay segments with criteria expressed as annual
							 geometric means (AGM), the values shall not be exceeded more than once in a
							 three year period. For all other bay segments, the criteria shall not be
							 exceeded in more than 10 percent of the measurements and shall be assessed over
							 the most recent seven year period. Nutrient and nutrient response values do not
							 apply to tidally influenced areas that fluctuate between predominantly marine
							 and predominantly fresh waters during typical climatic and hydrologic
							 conditions.
1. Ochlockonee River Estuary
0.067 mg/L
0.86 mg/L
9.2 µg/L
2. Ochlockonee/Alligator Harbor Offshore
0.032 mg/L
0.57 mg/L
8.2 µg/L
3. St. Marks River Estuary
0.044 mg/L
0.70 mg/L
6.0 µg/L
4. St. Marks Offshore
0.045 mg/L
0.63 mg/L
8.0 µg/L
5. Aucilla River Estuary
0.080 mg/L
0.89 mg/L
2.2 µg/L
6. Aucilla Offshore
0.025 mg/L
0.60 mg/L
9.5 µg/L
7. Econfina River Estuary
0.101 mg/L as AGM
1.14 mg/L as AGM
4.9 µg/L as AGM
8. Econfina Offshore
0.042 mg/L as AGM
0.65 mg/L as AGM
3.7 µg/L as AGM
9. Fenholloway River Estuary
839 lbs/day, as an annual average, based on Level II
							 WQBEL
5, 573 lbs/day, as an annual average, based on Level
							 II WQBEL
4.6 µg/L as AGM
10. Fenholloway Offshore
0.059 mg/L as AGM
0.68 mg/L as AGM
4.1 µg/L as AGM
11. Spring Warrior Offshore
0.047 mg/L
0.67 mg/L
8.3 µg/L
12. Steinhatchee River Estuary
0.062 mg/L as AGM
0.86 mg/L as AGM
3.9 µg/L as AGM
13. Steinhatchee Offshore
0.021 mg/L as AGM
0.45 mg/L as AGM
3.3 µg/L as AGM
14. Horseshoe Beach Offshore
0.017 mg/L as AGM
0.41 mg/L as AGM
2.1 µg/L as AGM
15. Cedar Key
0.060 mg/L as AGM
0.79 mg/L as AGM
10.9 µg/L as AGM
(y) Intracoastal Waterway (ICWW)
For ICWW segments with criteria expressed as annual
							 geometric means (AGM), the values shall not be exceeded more than once in a
							 three year period. Criteria expressed as kg/year and annual means are not to be
							 exceeded in any year. For all other ICWW segments, the criteria shall not be
							 exceeded in more than 10 percent of the measurements and shall be assessed over
							 the most recent seven year period.
1. Gulf ICWW between Choctawhatchee Bay and St.
							 Andrew Bay
0.108 mg/L
1.13 mg/L
6.6 µg/L
2. Gulf ICWW between St. Andrew Bay and St. Joseph
							 Bay
0.108 mg/L
1.13 mg/L
6.6 µg/L
3. ICWW between Roberts Bay and Lemon Bay
0.253 mg/L as AGM
0.59 mg/L as AGM
4.0 µg/L as AGM
4. Central Broward County ICWW
0.045 mg/L as AGM
0.80 mg/L as AGM
2.7 µg/L as AGM
5. North Broward County ICWW
0.059 mg/L as AGM
0.79 mg/L as AGM
3.0 µg/L as AGM
6. North Central Broward County ICWW
0.048 mg/L as AGM
0.88 mg/L as AGM
3.3 µg/L as AGM
7. South Broward County ICWW
0.043 mg/L as AGM
0.70 mg/L as AGM
2.0 µg/L as AGM
8. Palm Beach County ICWW
0.146 mg/L
1.17 mg/L
13.4 µg/L
9. ICWW between North Lake Worth Lagoon and Lower
							 Loxahatchee River
0.035 mg/L as AGM
0.66 mg/L as AGM
4.7 µg/L as AGM
10. ICWW Palm Coast
73, 142 kg/year
798, 913 kg/year
4.5 µg/L as annual mean
11. ICWW from north Tolomato River to St. Johns
							 River
0.191 mg/L as AGM
1.27 mg/L
10.2 µg/L
(z) St. Lucie Estuary
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For criteria expressed as long-term averages, the
							 long-term average shall be based on data from the most recent seven-year period
							 and shall not be exceeded.
1. St. Lucie Estuary
See subsection
							  62-304.705(1),
							 F.A.C.
See subsection
							  62-304.705(1),
							 F.A.C.
5.9 µg/L as AGM
2. Upper North Fork St. Lucie River
See subsection
							  62-304.705(2),
							 F.A.C.
See subsection
							  62-304.705(2),
							 F.A.C.
6.7 µg/L as AGM
3. Lower North Fork St. Lucie River
See subsection
							  62-304.705(3),
							 F.A.C.
See subsection
							  62-304.705(3),
							 F.A.C.
7.4 µg/L as AGM
4. Lower South Fork St. Lucie River
See subsection
							  62-304.705(6),
							 F.A.C.
See subsection
							  62-304.705(6),
							 F.A.C.
6.7 µg/L as AGM
5. Upper South Fork St. Lucie River
See subsection
							  62-304.705(7),
							 F.A.C.
See subsection
							  62-304.705(7),
							 F.A.C.
5.0 µg/L as AGM
6. Manatee Creek
0.081 mg/L as long-term average
0.72 mg/L as long-term average
5.9 µg/L as AGM
(aa) Indian River Lagoon, Banana River Lagoon, and
							 Mosquito Lagoon
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For all other estuary segments, the criteria shall not
							 be exceeded in more than 10 percent of the measurements and shall be assessed
							 over the most recent seven year period.
1. Indian River Lagoon between Loxahatchee River up
							 to and including Hobe Sound
0.021 mg/L as AGM
0.49 mg/L as AGM
2.0 µg/L as AGM
2. Indian River Lagoon between Hobe Sound and St.
							 Lucie
0.060 mg/L as AGM
0.63 mg/L as AGM
6.9 µg/L
3. Indian River Lagoon from St. Lucie Estuary to Ft.
							 Pierce Inlet
0.070 mg/L as AGM
0.72 mg/L as AGM
4.7 µg/L as AGM
4. Indian River Lagoon from Ft. Pierce Inlet to
							 Indian River County Line
0.070 mg/L as AGM
0.72 mg/L as AGM
4.7 µg/L as AGM
5. Central Indian River Lagoon
See subsections
							  62-304.520(7) and
							 (8), F.A.C.
See subsections
							  62-304.520(7) and
							 (8), F.A.C.
5.9 µg/L as AGM
6. North Indian River Lagoon
See subsections
							  62-304.520(3)  -
							 (6), F.A.C.
See subsections
							  62-304.520(3)  -
							 (6), F.A.C.
6.4 µg/L as AGM
7. Sebastian River Estuary
63, 991 pounds/year, not to be exceeded in any
							 year
323, 382 pounds/year, not to be exceeded in any
							 year
6.0 µg/L as AGM
8. Banana River Lagoon
See subsections
							  62-304.520(9) and
							 (10), F.A.C.
See subsections
							  62-304.520(9) and
							 (10), F.A.C.
7.3 µg/L as AGM
9. Newfound Harbor
See subsection
							  62-304.520(11),
							 F.A.C.
See subsection
							  62-304.520(11),
							 F.A.C.
7.3 µg/L as AGM
10. Sykes Creek Estuary
See subsection
							  62-304.520(13),
							 F.A.C.
See subsection
							  62-304.520(13),
							 F.A.C.
7.3 µg/L as AGM
11. Mosquito Lagoon: Oak Hill to the Southern
							 Terminus
0.034 mg/L as AGM
1.14 mg/L as AGM
2.5 µg/L as AGM
12. Mosquito Lagoon: Edgewater to Oak Hill
0.048 mg/L as AGM
0.65 mg/L as AGM
3.4 µg/L as AGM
13. Mosquito Lagoon: Ponce de Leon to
							 Edgewater
0.049 mg/L as AGM
0.51 mg/L as AGM
4.0 µg/L as AGM
(bb) Lower St. Johns River and Tributaries
							 (predominantly marine)
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. Criteria expressed as annual means are not to be
							 exceeded in any year.
Lower St. Johns River and Tributaries (predominantly
							 marine)
722, 834 kilograms/year
See subsection
							  62-304.415(2),
							 F.A.C.
5.4 µg/L as annual mean
(cc) St. Marys River
For estuary segments with criteria expressed as
							 annual geometric means (AGM), the values shall not be exceeded more than once
							 in a three year period. For all other estuary segments, the criteria shall not
							 be exceeded in more than 10 percent of the measurements and shall be assessed
							 over the most recent seven year period.
1. Lower St. Marys River
0.181 mg/L
0.77 mg/L as AGM
12.9 µg/L
2. Middle St. Marys River
0.113 mg/L as AGM
1.12 mg/L as AGM
8.0 µg/L
3. Upper St. Marys River
0.093 mg/L as AGM
1.35 mg/L as AGM
3.0 µg/L as AGM
(2)
				Criteria for chlorophyll
a
in open ocean coastal waters,
				derived from satellite remote sensing techniques, are provided in the table
				below. In each coastal segment specified in the Map of Florida Coastal
				Segments, dated May 13, 2013 (
http://www.flrules.org/Gateway/reference.asp?No=Ref-03017
),
				which is incorporated by reference herein, the Annual Geometric Mean remotely
				sensed chlorophyll
a
value, calculated excluding
Karenia brevis
blooms (>=50, 000 cells/L), shall not be
				exceeded more than once in a three year period. The annual geometric means
				provided in the table below are based on measurements using the SeaWiFS
				satellite. Achievement of these criteria shall be assessed only by using
				satellite remote sensing data that are processed in a manner consistent with
				the derivation of the criteria. Data selection and preparation shall be
				consistent with the process described in Section 1.4.3 and Section 1.4.4, pages
				14 through 17, in the report titled "Technical Support Document for U.S. EPA's
				Proposed Rule for Numeric Nutrient Criteria for Florida's Estuaries, Coastal
				Waters, and South Florida Inland Flowing Waters, Volume 2: Coastal Waters, "
				U.S. Environmental Protection Agency, November 30, 2012 (
http://www.flrules.org/Gateway/reference.asp?No=Ref-03018
),
				the specified pages of which are incorporated by reference herein. If MODIS or
				MERIS satellite data are used, the data shall be normalized using the
				standardization factors provided in the table below, consistent with the
				process described in Section 1.6.3, pages 26 through 33 (
http://www.flrules.org/Gateway/reference.asp?No=Ref-03019
),
				in the above referenced EPA document, the specified pages of which are
				incorporated herein. A copy of the Map of Florida Coastal Segments and the
				referenced pages from EPA's document above are available by writing to the
				Florida Department of Environmental Protection, Water Quality Standards
				Program, 2600 Blair Stone Road, MS #6511, Tallahassee, FL 32399-2400.
Coastal Segment
Annual Geometric Mean Remotely Sensed
							 Chlorophyll
a
MODIS Standardization Factor
MERIS Standardization Factor
1
2.45
0.54
-0.71
2
2.65
0.99
-0.07
3
1.48
0.41
-0.22
4
1.20
0.26
-0.30
5
1.09
0.15
-0.28
6
1.07
0.29
-0.01
7
1.17
0.33
-0.02
8
1.27
0.38
-0.05
9
1.09
0.20
-0.07
10
1.13
0.41
-0.07
11
1.14
0.31
-0.05
12
1.21
0.41
-0.05
13
1.53
0.50
-0.13
14
1.80
0.69
0.01
15
2.80
0.68
0.58
16
2.49
-0.14
0.27
17
3.57
0.08
1.41
18
5.62
0.50
0.03
19
4.90
0.50
0.31
20
4.33
-0.02
-0.69
21
4.06
-0.63
-1.09
22
4.54
-0.46
-0.17
23
3.40
-1.21
-0.67
24
3.41
-2.37
0.01
25
3.11
-2.84
0.05
26
3.00
-4.16
-0.36
27
3.05
-1.77
-0.81
28
3.41
-2.13
-0.61
29
4.55
-0.83
-0.74
30
4.32
-0.74
-0.04
31
3.77
-0.29
-0.90
32
4.30
0.17
-0.47
33
5.98
0.10
0.80
34
4.63
-0.77
-0.32
35
4.14
0.42
-0.83
37
1.01
0.39
0.59
38
0.26
-0.04
-0.03
39
0.27
-0.02
0.00
40
0.25
-0.03
-0.01
41
0.21
-0.06
-0.01
42
0.21
-0.03
0.03
43
0.21
-0.02
0.04
44
0.20
-0.02
0.01
45
0.21
-0.04
0.02
46
0.26
-0.05
-0.01
47
0.58
-0.10
0.03
48
1.09
0.03
0.09
49
1.48
0.39
0.36
50
1.85
0.21
0.32
51
1.72
0.23
0.31
52
1.73
0.05
0.58
53
1.87
0.00
0.47
54
1.66
-0.13
0.31
55
1.60
0.18
0.71
56
2.12
0.11
0.39
57
2.83
0.44
0.84
58
2.63
0.09
0.40
59
2.34
0.06
0.33
60
2.17
0.07
0.29
61
2.01
-0.20
-0.06
62
1.93
0.18
-0.11
63
1.90
-0.69
-0.20
64
2.13
-0.79
-0.20
65
1.96
-0.72
-0.13
66
1.95
-0.85
-0.40
67
2.06
-0.33
-0.53
68
2.51
-0.47
-0.08
69
2.86
-0.60
-0.22
70
2.88
-1.39
-0.32
71
3.62
-2.00
-0.38
72
3.80
-1.38
-0.40
73
3.94
-0.28
-0.49
74
4.36
-0.16
-1.17
(3)
				Estuarine and marine areas for the estuaries listed in subsection
				 62-302.532(1),
				F.A.C., are delineated in the maps of the Florida Estuary Nutrient Regions,
				dated October 2014 and October 2015 (
http://www.flrules.org/Gateway/reference.asp?No=Ref-06050
),
				which are incorporated by reference herein. Copies of these maps may be
				obtained by writing to the Florida Department of Environmental Protection,
				Water Quality Standards Program, 2600 Blair Stone Road, MS #6511, Tallahassee,
				FL 32399-2400.
(4) To calculate an
				annual geometric or arithmetic mean for TN, TP, or chlorophyll
a
, there shall be at least four temporally-independent samples
				per year with at least one sample taken between May 1 and September 30 and at
				least one sample taken during the other months of the calendar year. To be
				treated as temporally-independent, samples must be taken at least one week
				apart.
Rulemaking Authority
					 403.061,
					 403.062,
					 403.087,
					 403.504,
					 403.704,
					 403.804 FS. Law Implemented
					  403.021(11),
					  403.061,
					  403.087,
					  403.088,
					  403.141,
					  403.161,
					  403.182,
					  403.502,
					  403.702,
					  403.708 FS.
Paragraphs  62-302.532(1)(a)  -(j) became effective on
					 7-3-12, and paragraphs  62-302.532(1)(k)  -(p) became effective on 12-20-12, 20
					 days after filing the rule certification packages for these numeric nutrient
					 criteria. In accordance with Section 4 of 2013-71, Laws of Florida, and
					 subsection  62-302.531(9),
					 F.A.C., paragraphs  62-302.532(1)(q)  -(w), subsections  62-302.532(2) and (4),
					 and the maps delineating these Florida Estuary Nutrient Regions in subsection
					  62-302.532(3)  will become effective upon approval by EPA in their entirety,
					 conclusion of rulemaking by EPA to repeal its federal numeric nutrient
					 criterion for Florida, and EPA's determination that Florida's rules address its
					 January 2009 determination that numeric nutrient criteria are needed in
					 Florida.
New 7-3-12, Amended 12-20-12, 8-1-13, 8-20-13, 6-7-15,
					 2-17-16.