When used in this chapter, unless the context clearly
indicates otherwise, the following words shall mean:
(1) "Annual Average Flow" is the long-term
harmonic mean flow of the receiving water, or an equivalent flow based on
generally accepted scientific procedures in waters for which such a mean cannot
be calculated. For waters for which flow records have been kept for at least
the last three years, "long-term" shall mean the period of record. For all
other waters, "long-term" shall mean three years (unless the Department finds
the data from that period not representative of present flow conditions, based
on evidence of land use or other changes affecting the flow) or the period of
records sufficient to show a variation of flow of at least three orders of
magnitude, whichever period is less. For nontidal portions of rivers and
streams, the harmonic mean (Q
hm) shall be calculated as:
|
Qhm
|
=
|
n
____________________________________
|
|
|
|
1
|
+
|
1
|
+
|
1
|
+
|
1
|
+
|
1
|
+
|
...
|
+
|
1
|
|
|
|
Q1
|
|
Q2
|
|
Q3
|
|
Q4
|
|
Q5
|
|
|
|
Qn
|
in which each Q is an individual flow record and n is the
total number of records. In lakes and reservoirs, the annual average flow shall
be based on the hydraulic residence time, which shall be calculated according
to generally accepted scientific procedures, using the harmonic mean flows for
the inflow sources. In tidal estuaries and coastal systems or tidal portions of
rivers and streams, the annual average flow shall be determined using methods
described in EPA publication no. 600/6-85/002b pages 142-227, incorporated by
reference in paragraph
62-4.246(9)(k),
F.A.C., or by other generally accepted scientific procedures, using the
harmonic mean flow for any freshwater inflow. If there are insufficient data to
determine the harmonic mean then the harmonic mean shall be estimated by
methods as set forth in the EPA publication Technical Support Document
for Water Quality-Based Toxics Control (March 1991), incorporated by
reference in paragraph
62-4.246(9)(d),
F.A.C., or other generally accepted scientific procedures. In situations with
seasonably variable effluent discharge rates, hold-and-release treatment
systems, and effluent-dominated sites, annual average flow shall mean modeling
techniques that calculate long-term average daily concentrations from long-term
individual daily flows and concentrations in accordance with generally accepted
scientific procedures.
(2)
"Approved Analytical Method" shall mean any of the analytical methods approved
under Chapter 62-160, F.A.C.
(3)
"Commission" is the State of Florida Environmental Regulation
Commission.
(4) "Construction
permit" is the legal authorization granted by the Department to construct,
expand, modify, or make alterations to any installation and to temporarily
operate and test such new or modified installations.
(5) "Department" is the State of Florida
Department of Environmental Regulation or its delegatee as provided in the
Operating Agreements Concerning Management and Storage of Surface Water
Regulation and Wetland Resource Regulation adopted by reference in Rule
62-101.040, F.A.C.
(6)
"Environmental restoration and enhancement" means activities, other than those
proposed as mitigation for a permit required under Part IV of Chapter 373,
F.S., conducted by government, research, education or charitable entities that
are either not-for-profit or non-profit, that have the sole objective of
restoring or enhancing water resources, including water quality and the
functions wetlands and other surface waters provide to fish and wildlife,
through measures such as: restoring hydrology and water circulation;
re-establishing native vegetation; or otherwise restoring more desirable
natural conditions that existed prior to human-induced disturbances.
(7) "Installation" is any structure,
equipment, facility, or appurtenances thereto, operation or activity which is
or may be a source of pollution as defined in Chapter 403, F.S. Installation
includes dredging and filling as these terms are defined in Section 403.911,
F.S.
(8) "Method Detection Limit
(MDL)" is the smallest concentration of an analyte of interest that can be
measured and reported with 99% confidence that the concentration will be
greater than zero. The MDLs are determined from the analysis of a given matrix
containing the analyte at a specified level. Determination of MDLs shall follow
procedures determined in Appendix B to part 136 of 40 CFR,
1990, incorporated
here by reference, or equivalent procedures complying with Chapter 62-160,
F.A.C.
(9) "Operation permit" is
the legal authorization granted by the Department to operate or maintain any
installation for a specified period of time.
(10) "Permit condition" is a statement or
stipulation which is issued with a permit and which must be complied
with.
(11) "Permit" is the legal
authorization to engage in or conduct any construction, operation,
modification, or expansion of any installation, structure, equipment, facility,
or appurtenances thereto, operation, or activity which will reasonably be
expected to be a source of pollution.
(12) "Practical Quantification Limit (PQL)"
is the lowest level that can be reliably achieved during routine laboratory
operating conditions within specified limits of precision and accuracy, as
reflected in the Department's list of PQLs under subsection
62-4.246(4),
F.A.C., or an alternative level established through equivalent procedures
complying with Chapter 62-160, F.A.C.
(13) "Secretary" is the Secretary of the
Department.
(14) "Temporary
operation permit" is the legal authorization limited to a specified time
granted by the Department to operate, maintain, construct, modify, expand, or
make alterations to any installation in accordance with Section
403.088, F.S.
(15) "Equivalent Clean Closure" is available
for interim status land disposal units that certified clean closure under 40
CFR Part
265 standards prior to March 19, 1987. These facilities must make an
equivalency demonstration to meet 40 CFR Part
264 closure standards or the
facility must obtain a closure permit containing post closure
requirements.
Notes
Fla. Admin.
Code Ann. R. 62-4.020
Rulemaking Authority 373.026, 373.043, 373.414, 373.418,
403.061, 403.805 FS. Law Implemented
373.109,
373.413,
373.414,
373.4145,
403.021,
403.031,
403.061,
403.087,
403.088,
403.802, 403.817
FS.
New 3-4-72, Revised
5-17-72, Amended 6-10-75; Joint Administrative Procedures Committee Objection
Filed - See FAW Vol. 1, No. 28, 1-12-76; Joint Administrative Procedures
Committee Objection Withdrawn - See FAW Vol. 3, No. 30, 7-29-77, Amended
3-11-81, 10-16-84, 12-10-84, Formerly 17-4.02, Amended 3-18-86, 8-31-88,
6-4-92, 11-16-92, 7-11-93, Formerly 17-4.020, Amended
4-3-03.
New 3-4-72, Revised 5-17-72, Amended 6-10-75; Joint
Administrative Procedures Committee Objection Filed - See FAR Vol. 1, No. 28,
1-12-76; Joint Administrative Procedures Committee Objection Withdrawn - See
FAR Vol. 3, No. 30, 7-29-77, Amended 3-11-81, 10-16-84, 12-10-84, Formerly
17-4.02, Amended 3-18-86, 8-31-88, 6-4-92, 11-16-92, 7-11-93, Formerly
17-4.020, Amended 4-3-03.
