DEPARTMENT OF ENVIRONMENTAL PROTECTION
RULE NO.:RULE TITLE:
62-302.532Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion
NOTICE OF CHANGE
Notice is hereby given that the following changes have been made to the proposed rule in accordance with subparagraph 120.54(3)(d)1., F.S., published in the October 27, 2014 issue of the Florida Administrative Register, Volume 40, Number 209, pages 4771-4773. The changes are made in response to written and oral comments from the Joint Administrative Procedures Committee or as the result of staff recommendations that were discussed at an adoption hearing held on November 19, 2014. Two of the maps incorporated by reference in subsection 62-302.532(3), F.A.C., are updated to reflect the addition of Judges Bayou to the Upper Escambia Bay Estuarine Nutrient Region and to correct the numbering of estuarine segments for the St. Marys River Estuarine Nutrient Region. The proposed rule has changed so that when it is adopted it will read:
62-302.532 Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion.
(1) No change to introductory paragraph.
Estuary
Total Phosphorus
Total Nitrogen
Chlorophyll a
(a) No change.
(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. through 8. No change.
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 15 µg/L as annual mean 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 annual mean 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 annual mean AGM
3. Roberts Bay
0.23 mg/L as AGM
0.54 mg/L as AGM
11.0 µg/L as annual mean AGM
4. Little Sarasota Bay
0.21 mg/L as AGM
0.60 mg/L as AGM
10.4 µg/L as annual mean AGM
5. Blackburn Bay
0.21 mg/L as AGM
0.43 mg/L as AGM
8.2 µg/L as annual mean AGM
(d) through (k) No change.
(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. through 6. No change.
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 µg/L as long-term average of annual means
(m) through (w) No change.
(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. through 3. No change.
4. St. Marks Offshore (includes Oyster and Dickerson Bays)
0.045 mg/L
0.63 mg/L
8.0 µg/L
5. through 13. No change.
14. Horseshoe Beach Offshore
0.021 mg/L as AGM 0.017 mg/L as AGM
0.45 mg/L as AGM
0.41 mg/L as AGM
3.3 µg/L as AGM
2.1 µg/L as AGM
15. No change.
(y) through (z) No change.
(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. through 6. No change.
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
5.9 6.0 µg/L as AGM
8. through 13. No change.
(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. 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. Criteria expressed an 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 long-term average of annual means annual mean
(cc) No change.
(2) through (4) No change.
