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Home » 2013 Issues » Vol. 39, No. 130 (07/05/2013) » Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion
Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion
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 Vol. 39, No. 104, May 29, 2013 issue of the Florida Administrative Register. The changes are made as the result of staff recommendations that were discussed at an adoption hearing held on June 20, 2013. 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) 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. 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. 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.
(a) through (p) No change.
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.
1. through 2. No change.
3. Upper Loxahatchee
0.075 0.072 mg/L as AGM
1.26 1.35 mg/L as AGM
5.5 14.3 μg/L as AGM
(r) Lake Worth Lagoon
1. Northern Lake Worth Lagoon
2.9 2.7 μg/L as AGM
2. Central Lake Worth Lagoon
10.2 10.3 μg/L
3. No change.
(s) through (w) No change.
(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, 2012, 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, 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, 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, Standards and Assessment Section, 2600 Blair Stone Road, MS 6511, Tallahassee, FL 32399-2400.
Table – no change.
(3) No change.
(4)(3) No change.
Related Rules: (1)
62-302.532. Estuary-Specific Numeric Interpretations of the Narrative Nutrient Criterion
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