ML21035A210

NRC-2020-000123 - Resp 5 - Final, Combined CCS Modeling Reports 2012-2017 Part 1

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002998.FC11.01 Turkey Point Plant Comprehensive Pre-Uprate Monitoring Report Units 3 & 4 Uprate Project October 31, 2012 Prepared for: Prepared by:

ecology and environment, inc.

Global Environmental Specialists

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 present the data and, depending upon the findings, a decision could be made whether to formally publish a report.

The USGS assessed the depths at which the results could be reasonably interpreted and concluded the depth was typically limited to 12.5 to 15 m below the Bay bottom. The USGS stated that the data are considered to have a vertical resolution no better than 5 m and the horizontal resolution is generally considered to be 1/2 the electrode spacing (5 m).

Based primarily on the lack of depth penetration, it is FPLs interpretation that the CRP survey will not be very helpful to further delineate the extent of CCS water at depth nor conclusively discriminate between water of different densities and variations in the subsurface geology without the aid of substantial data collection. The porewater and surface water sampling in Biscayne Bay already provide insights into whether there is a measurable influence of the CCS in Biscayne Bay. As such, FPL recommends that further efforts associated with the CRP not be conducted. FPL also does not recommend the use of DTS to track warmer CCS water in the ground since the well temperature data indicate little to no thermal influences away from the CCS.

5.4 Water and Salt Balance Model Tetra Tech GEO developed a model of the water and salt balance for the CCS. The purpose of this model is to quantify the volumes of water and mass of salt entering and exiting the CCS over a period of time. This analysis builds upon a prior study of the CCS water balance (Golder 2008) by revising methods of calculation for the various components of the CCS and by incorporating new hydrological, chemical, and meteorological data collected in and around the CCS between September 2010 and June 2012. The model described herein is an extension and update of the water and salt balance model presented in the 2011 Annual Monitoring Report (FPL 2011b). This section describes the conceptual model of the CCS water and salt balance, key calculations, and results to illustrate the components of the water and salt balance model. All assumptions are clearly indicated. These calculations are performed in an Excel spreadsheet, which is provided in a separate data file. Findings regarding the operation of the CCS are based upon the results of the current calibrated water and salt balance model and are provided herein.

5.4.1 Conceptual Model The first step in the modeling process is the development of a hydrological conceptual model (HCM). All data available for the site are assimilated in the HCM in a framework that facilitates the development of a quantitative model. Such data includes information about the bathymetry of the CCS, Biscayne Bay, ID and SFWMD canal L-31E. The flow and chemical characteristics of these water bodies and of the underlying groundwater are thoroughly monitored. These monitoring data are also incorporated in the HCM and helped to formulate a control volume that is primarily comprised of the CCS.

A control volume defines the entity being analyzed. The transfer of water and salt within the control volume is not characterized. Rather, the water and salt balance model focuses upon the 5-16

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 transfer of water and salt into and out of the control volume. The control volume analyzed is comprised of the canals of the CCS and the adjacent ID. Raised earth berms between the individual canals are not considered as a part of the control volume. The base of the control volume is assumed to be the bottom of the ID and the cooling canals, whose elevation ranges from approximately -3 feet NAVD 88 to approximately -30 feet NAVD 88. This interpretation of the control volume was developed based upon the hydrological monitoring plan in place for the CCS. The components of the water balance model for this control volume are depicted in Figure 5.4-1. In this figure, canal L-31E is red, the ID is green, discharge cooling canals are purple, return canals are dark blue, and Biscayne Bay is light blue.

Water elevation and quality are recorded at seven stations throughout the CCS, three locations in the ID, three stations in canal L-31E, two locations in other adjacent canals, seven locations in Biscayne Bay (four of which measure only salinity), and fourteen wells in Biscayne Aquifer (at 3 depths each); it is important to note that, based upon the control volume, only shallow groundwater monitoring stations contributed to the characterization of groundwater elevations and groundwater quality in this analysis. The surface and subsurface monitoring locations, in addition to data provided by SFWMD and FPL, facilitate straightforward calculation of the components of water and salt transfer into and out of the control volume:

x Surface water monitoring stations in canal L-31E and the ID permit a straightforward calculation of lateral seepage of water and salt between L-31E and the control volume; x Surface water monitoring stations in the southern collector canal of the control volume and a monitoring station in a canal adjacent and parallel to the southern face of the control volume provide a means to calculate the seepage of water and salt through the southern face of the control volume; x Surface water monitoring stations in the CCS return canals and in Biscayne Bay facilitate the calculation of seepage between Biscayne Bay and the control volume; x Surface water monitoring stations in the CCS canals and groundwater monitoring stations beneath and adjacent to the CCS help to define water flow and salt transport through the bottom of the proposed control volume; x Meteorological stations in the CCS and immediately to the north and south provide data to calculate the loss of water from the control volume to evaporation; and x Next Generation Weather Radar (NEXRAD) precipitation data provided by SFWMD informed an accurate assessment of water gained by the CCS from rainfall.

Intermediate modeling results, based upon the control volume and the HCM presented herein, were presented to SFWMD for a calibration period between September 2010 and December 2011 (Andersen 2012). Based upon the intermediate results, FPL received concurrence from SFWMD on the proposed control volume and HCM.

5.4.2 Bathymetry Certain components of the water and salt balance model require an understanding of the control volumes surface area. For instance, precipitation-based inflow to the control volume is a function of the amount of rainfall (e.g., in inches) and the surface area of the water body onto which the rain was deposited. Also, the conductances for the bottom seepage zone are a function 5-17

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 of the water surface area. Due to the sloping sidewalls of the canals in the CCS, the water surface area changes as the water elevations in the CCS change. Based upon a detailed survey of the CCS bathymetry (Morgan and Eklund 2010), a relationship between surface area of the control volume (sub-divided into 5 zones, Figure 5.4-2) and water elevation was defined. Thus, because water elevations in the CCS vary daily so, too, does the water surface area (surface area is proportional to the water elevation); the time-varying surface areas for each of the 5 zones in Figure 5.4-2 are known for the calibration period. Likewise, the bathymetric survey results permitted the characterization of the relationship between the CCS water elevations and CCS storage volume; like surface area, storage volume decreases as water elevations decrease. This refined understanding of surface area and volume of the CCS significantly improved the performance of the model and eliminated much uncertainty with respect to the inflows to and outflows from the control volume.

5.4.3 Water Balance Calculations As Figure 5.4-1 depicts, the water balance for the proposed control volume is comprised of seepage (lateral through the sides and vertical through the bottom), blowdown (additional water pumped from other units to the CCS), precipitation (including runoff from earth berms between canals) and evaporation. Water pumped into and out of the CCS from Units 1 through 4 is also a component of inflow to and outflow from the control volume; however, these flows are assumed to be equal and have a net zero effect on the water and salt balance. Seepage to and from the control volume comprises a significant component of the water balance. The approach to calculating seepage to and from the control volume, as well as necessary assumptions, is provided below. Other means by which water is transferred (e.g., evaporation) are calculated in distinct manners and are discussed separately. Calculations were performed for a 22-month period from September 2010 through June 2012. This period marks an extension of that which was defined in the preliminary model presented in the 2011 Annual Report (FPL 2011b).

Average flows into and out of the control volume were calculated for each day of this period.

The average daily flows were summed to estimate the amount of water that enters or exits the control volume during each month and the entire 22-month period. These calculations are intended to demonstrate and validate the methodology, as well as illustrate the hydrologic mechanisms by which the CCS functions.

The general equation for seepage flow employed in the water balance analysis is:

(1)

Where:

x Q Volumetric flow, [Length3/Time]

x h Head gradient between control volume and external source/sink, [Length]

x C Conductance of the media between the control volume and the external source/sink with which it is transferring water, [Length2/Time]

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 (2)

Where:

x K Hydraulic conductivity of the media through which water flows, [Length/Time]

x A Area of the face of the control volume through which water flows, [Length2]

x D Distance water flows between the external source/sink and the control volume,

[Length]

In accordance with widely accepted modeling convention, flow into the control volume is positive (+) and flow out of the control volume is negative (-). Calculated flows are reported in 106 gallons per day (millions of gallons per day [MGD]).

The mass flux into or out of the control volume is calculated by multiplying the volumetric flow by the salinity of the body of water from which the water is flowing. Salinity was monitored at all groundwater and surface water stations employed in the ensuing calculations and was reported in the practical salinity scale (PSS-78), which is equivalent to grams per liter (g/L).

Calculated mass fluxes are reported in thousands of pounds per day (lb x 1000/day).

The data monitoring locations, seepage face dimensions (where relevant), additional equations, and assumptions that support the estimation of the individual components of the water balance for the control volume are discussed below. Draft results of water and salt balance for the entire 22-month period are discussed in Section 5.4.5 and are provided at the end of Section 5.4.

5.4.3.1 Seepage To/From L-31E (Western Seepage)

Three surface water monitoring stations record the water elevations and salinities in L-31E (TPSWC-1, TPSWC-2, and TPSWC-3). Three corresponding stations (at similar longitudes) record water elevations and salinities in the ID (TPSWID-1, TPSWID-2, and TPSWID-3). The locations of these monitoring stations are plotted in Figure 5.4-3.

Using data recorded at these monitoring stations, the seepage through the west face of the control volume was calculated. In order to calculate this seepage, the western face of the control volume was subdivided into two sub-faces (Figure 5.4-3). For this calculation, the following assumptions were made and seepage face dimensions estimated:

x TPSWC-1, TPSWC-2, and TPSWC-3 were used to interpolate water elevations and salinity along the L-31E; x TPSWID-1, TPSWID-2, and TPSWID-3 were used to interpolate water elevations and salinity along the ID; x The northernmost section of the west seepage face is approximately 18,800 ft long; the southernmost section of the west seepage face is approximately 10,200 ft long; x Along the northernmost section of the west seepage face, L-31E and the ID are separated by approximately 950 ft; the average separation between the two canals in the southernmost portion is approximately 2,434 ft; and 5-19

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 x Elevation of base of the ID is approximately -20 ft NAVD 88.

The subdivision of seepage through the west face of the control volume is based on the orientation of L-31E. The conductance of and seepage through each of the sub-faces were calculated using Equations (1) and (2). The resulting component of the water balance is presented in Table 5.4-1. Salt balance estimates for this seepage face were calculated by multiplying the salinities in the sources of water by the calculated flow (Table 5.4-2). For instance, where the flow was to be calculated into the control volume, the salinity of L-31E would be multiplied by the calculated flow to derive the mass flux of this balance component.

5.4.3.2 Southern Seepage Seepage through the south face of the proposed control volume is primarily driven by the water elevations in the southern end of the CCS and in the canal adjacent and parallel to the southern edge of the control volume. One monitoring station records water elevations and salinity in the southern end of the CCS (TPSWCCS-4). Likewise, one monitoring station measures water elevations and salinity in the adjacent canal (TPSWC-4). These monitoring stations are plotted in Figure 5.4-4.

Using observed data recorded at these monitoring stations, the seepage through the south face of the control volume was calculated. For this calculation, the following assumptions were made and seepage face dimensions estimated:

x Water elevations and salinities recorded in TPSWC-4 are representative of the southern external canal; x Water elevations and salinities recorded in TPSWCCS-4 are representative of the southern CCS collector canal; x The depth of the southern CCS canal is assumed to be that at TPSWCCS-4, where the canal bottom is an approximate elevation of -22 ft NAVD 88; and x The length of the seepage face is approximately 9,300 ft.

The southern external canal is 155 ft south of and parallel to the southern edge of the CCS.

The application of data observed at TPSWC-4 to the entire southern canal was necessitated by the absence of other monitoring stations in this external canal. Likewise, TPSWCCS-4 is by far the most proximate and relevant monitoring station to the seepage face. The conductance for this seepage face was calculated using Equation (2). The flow through this seepage face was subsequently calculated by Equation (1) using water elevation differences between the two monitoring stations. The calculation flow associated with this component of the water balance is provided in Table 5.4-1. Salinities of the source water were multiplied by the calculated flows in order to estimate the salt mass flux and total mass through this seepage face (Table 5.4-2).

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 5.4.3.3 Eastern Seepage Seepage through the eastern face is assumed to flow into the control volume from Biscayne Bay or out of the control volume into Biscayne Bay. In order to calculate this seepage, the eastern face of the control volume was subdivided into two sub-faces (Figure 5.4-5). Canal depths at these two locations and stage variation within the CCS necessitated the subdivision of the eastern seepage face. The elevation of the canal bottom at TPSWCCS-5 is approximately -22 ft NAVD 88; the elevation of the canal bottom in the vicinity of TPSWCCS-6 is lower (approximately -30 ft NAVD 88). Water characteristics in Biscayne Bay are observed at a number of monitoring stations along the seepage face; the monitoring station with the longest period of record for water elevations is TPBBSW-3.

Using observed water elevations from relevant monitoring stations, the seepage through the east face of the control volume was calculated. For this calculation, the following assumptions were made and seepage face dimensions estimated:

x TPSWCCS-5 water elevations and salinities effectively reflect conditions in the return canal adjacent to the southernmost seepage sub-face; x TPSWCCS-6 water elevations and salinities effectively reflect conditions in the return canal adjacent to the northernmost seepage sub-face (TPSWCCS-5 salinity employed when data was not available for TPSWCCS-6);

x Reliable water elevations at TPSWCCS-6 were not available for much of September 2010 and all of April and May 2011; water elevations during these times were estimated from the measurements at TPSWCCS-5 by adding the average difference in water elevations between the two sensors to TPSWCCS-6; likewise, water elevations measured at TPSWCCS-6 were adjusted and employed as surrogates for TPSWCCS-5 water elevations when the latter were not available; x TPBBSW-3 water elevations and salinities are representative of Biscayne Bay along the eastern seepage face of the return canals (TPBBSW-10 water elevations and TPBBSW-4 salinities were employed when data for TPBBSW-3 were not available);

x TPBBSW-10 water elevations and salinities are representative of Biscayne Bay along the intake canal seepage face (water elevation and salinity measurements at TPBBSW-3 and

-4 were employed when data were not available for TPBBSW-10);

x The average elevation of the canal bottom along the southernmost seepage sub-face is assumed to be -22.5 ft NAVD 88 (elevation at TPSWCCS-5);

x Interval-valued bathymetric data defines a range of depths below water for the northernmost seepage sub-face between 20 ft and 40 ft. Based on this data, an approximate elevation of the canal bottom was defined to be -30 ft NAVD 88; x The length of the southernmost seepage sub-face is approximately 22,500 ft; and x The length of the northernmost seepage sub-face is approximately 8,340 ft.

The conductance for this seepage face was calculated using Equation (2). The flow through this seepage face was subsequently calculated by Equation (1) using water elevation differences between the each of the two monitoring stations in the control volume and the Biscayne Bay monitoring station. The calculation of flow associated with this component of the water balance 5-21

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 is provided in Table 5.4-1. Salinities of the source water were multiplied by the calculated flows in order to estimate the salt mass flux and total mass through this seepage face (Table 5.4-2).

5.4.3.4 Northern Face Seepage Seepage through the northern face of the control volume (Figure 5.4-6) is defined by the difference in water elevations between the northernmost discharge canal of the CCS and shallow groundwater elevations to the north of the control volume. TPSWCCS-1 is the most proximate monitoring station to the northern seepage face. Groundwater elevations were adjusted for freshwater equivalency and interpolated along a transect that is parallel to the northern edge of the CCS, starts at a point with the same latitude as TPGW-12 and same longitude at TPSWCCS-1, intersects TPGW-12, and terminates at a point with the same latitude at TPGW-12 and the same longitude as plant outflow meter TPFM-1 (Figure 5.4-6). Groundwater elevations along this transect were interpolated based on data recorded at shallow monitoring wells TPGW-6, TPGW-10, and TPGW-12. Freshwater equivalent heads were calculated using Equation (3).

(3)

Where:

x hf freshwater equivalent head, [Length]

x h measured water elevation at the sensor, [Length]

x z elevation of the sensor, [Length]

x measured density of water, [Mass/Length3]

x f freshwater density (0.997 g/cm3)

Using freshwater equivalent water elevations from the CCS monitoring station and interpolated shallow groundwater elevations along the transect, the seepage through the north face of the control volume was calculated. For this calculation, the following assumptions were made and seepage face dimensions estimated:

x Water elevations, densities, and salinities recorded in TPSWCCS-1 applied to the entire north canal of the control volume (TPSWCCS-7 data were used when TPSWCCS-1 data were not reliable);

x A hydraulic gradient was calculated along a straight line between TPGW-6 and TPGW-12; this gradient was employed to estimate groundwater elevations along the transect west of TPGW-12; x A hydraulic gradient was calculated along a straight line between TPGW-12 and TPGW-10; the gradient was employed to estimate groundwater elevations along the transect east of TPGW-12; x The salinity at TPGW-12 was assumed to apply across the length of the transect; x Length of the seepage face is the lateral distance between TPSWCCS-1 and the plant discharge pump station; x The distance between the northern edge of the CCS and the transect is the difference between the latitudes of TPGW-12 and TPFM-1; 5-22

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 x Based on bathymetry data, the elevation of the bottom of the CCS varied from -11.5 to -

25 ft NAVD 88 along the northern canal.

The conductance for this seepage face was calculated using Equation (2). The flow through this seepage face was subsequently calculated by Equation (1) using water elevation differences between the monitoring station in the control volume and interpolated shallow groundwater elevations along the transect. The calculation of flow associated with this component of the water balance is provided in Table 5.4-1. Salinities of the source water were multiplied by the calculated flows in order to estimate the salt mass flux and total mass through this seepage face (Table 5.4-2).

5.4.3.5 Bottom Seepage The calculation of flow through the bottom of the control volume employed monitoring data from five shallow groundwater wells located beneath and adjacent to control volume (TPGW-1, TPGW-3, TPGW-11, TPGW-12, TPGW-13) and four monitoring stations in the CCS (TPSWCCS-1, TPSWCCS-2, TPSWCCS-4, TPSWCCS-5). For this calculation, the control volume was subdivided into four zones (Figure 5.4-7), based on the locations of the CCS monitoring stations and the conceptualization of bottom seepage to and from the control volume (primarily downward flow in the northern and middle portions of the discharge cooling canals; primarily upward flow in the return canals). The seepage through each zone of the control volume was calculated; bottom seepage was calculated by summing the flows through the four zones.

Surface water elevations and salinity for each zone were defined to be those measured at the monitoring station within the zone (e.g., water elevations and salinity observed at TPSWCCS-1 and TPSWCCS-7 were applied to Zone A; Zone B: TPSWCCS-2; Zone C: TPSWCCS-4; Zone D: TPSWCCS-5). In general, water elevations decreased from Zone A to Zone D. Groundwater elevations beneath each zone were defined based upon proximate groundwater monitoring stations (Zone A: TPGW-1, TPGW-10, and TPGW-12; Zone B: TPGW-13; Zone C: TPGW-3 and TPGW-11; Zone D: TPGW-11). Groundwater salinity flowing into each zone was characteristic of the salinity measured at each zones relevant groundwater monitoring station (Zone A: average of TPGW-1 and TPGW-12; Zone B: TPGW-13; Zone C: TPGW-10; Zone D:

TPGW-10); the inflowing groundwater at Zones C and D was assumed to have a fraction (80%

and 90%, respectively) of the salinity measured at TPGW-10 due to the mixing of regional freshwater and saline water. The thickness of the seepage face varied amongst the zones, since the approximate average elevation of canal bottoms for each zone varied (as approximated from bathymetric survey data).

The calculation of seepage through the bottom of the control volume was predicated on the following simplifying assumptions:

x Groundwater elevations beneath each zone are reflected by the groundwater elevations at underlying or proximate monitoring wells, as described above; x The elevation of the canal bottom as representative for each zone was interpreted from bathymetric survey data and assumed to be constant throughout the zone; 5-23

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 x The surface water elevation and salinity observed at a monitoring station within each zone was applied to the entire zone, as described above; x Water elevations employed in the seepage flow calculation were not adjusted for density.

This assumption was made because although the concentration of the CCS water and the groundwater beneath the CCS may be different from ground or surface waters at other locations, the concentration of the CCS water and the concentration of groundwater immediately beneath the CCS at a given monitoring location are approximately the same.

Because the concentrations are the same, the densities are the same, and no adjustment to account for density difference is required to compute flows; and x Water elevations measured at TPGW-11M acted as surrogates for TPGW-11S water elevations when the latter were not available.

Based on these assumptions, the conductance of and flows through the four zones were calculated using Equations (2) and (1), respectively. The calculated flow is provided in Table 5.4-1. Mass flux was calculated by multiplying the volumetric flow by the salinity of the source (Table 5.4-2).

5.4.3.6 Evaporation The estimation of evaporative loss from the control volume is a unique case of evaporation from a surface water body due to the elevated heat of water entering the CCS from the FPL Turkey Point power plant and the variability of salinity of water in the control volume. The elevated heat of water has the general effect of increasing evaporative loss, whereas salinity is inversely proportional to the rate of evaporation (Salhotra et al. 1985).

Numerous approaches for estimating evaporation have been developed; they generally fall into two categories: energy balance methods and Dalton Law methods. The former method is widely applied to surface water bodies in spite of being a costly and time-consuming method (Mosner and Aulenbach 2003). This approach to calculating evaporative losses requires calculation of individual components of energy flux into and out of the control volume due to solar radiation, surface water, groundwater and precipitation. Evaporative loss is then indirectly estimated as the difference between net energy flux from the control volume and the sum of the individual calculated energy flux components (Lensky et al. 2005; Mosner and Aulenbach 2003). This indirect approach can necessitate the detailed measurement of solar radiation, fraction of penetrating solar radiation, brine mass and cloud cover and can be unreliable for water bodies with elevated temperatures (Leppanen and Harbeck 1960; Bowen 1926).

The Dalton Law approach, on the other hand, relies upon an understanding of the vapor pressure gradient between the surface water and the overlying air, as well as the wind speed above the surface water. Use of this method is limited in practice since wind speed is often the least known parameter in evaporation estimation (Lensky et al. 2005).

For the control volume, wind speeds are measured at 15-minute intervals at meteorological station TPM-1 (Figure 5.4-8) and at 1-hour intervals north and south of the control volume. As such, the Dalton Law approach is employed herein to estimate the rate of evaporative loss, E, from the control volume. The general form of the equation is:

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5

[Length/Time] (4)

Where:

x f(W) wind function; W is wind speed, [Length/Time]

x coefficient of water activity x e(T) saturation vapor pressure [Mass/(Length x Time2)]

x TS, TA temperature of surface water and air, respectively [°C]

x relative humidity [%]

The wind function, f(W), is an empirically derived formula that uses wind speed at 2 meters above surface to quantify to the effect of air convection above the water surface on the rate of evaporation. The thermal loading of the Turkey Point power plant can increase forced convection at the north end of the control volume. Approaches to explicitly consider free and forced convection are available (Adams et al. 1990), though they are tailored to estimating energy lost due to evaporation, rather than water lost due to evaporation. Though free and forced convection are not explicitly characterized herein, the wind function employed in these calculations was derived for heated cooling water and based upon the following equation:

(5) where wind, W, is measured in meters per second (m/s) (Williams and Tomasko 2009). In order to achieve a well-calibrated model, a coefficient CW was incorporated into Equation (5) and was ultimately adjusted during calibration:

(6)

The coefficient of water activity, , varies in the range [0, 1] and is intended to account for the reduced evaporation from saline water bodies. It decreases with increasing salinity; at salinity levels in the CCS, does not vary significantly (Salhotra et al. 1985) and is conservatively assumed to be 0.9; this value for is empirically consistent with salinities approximately equal to 100 PSU (Salhotra et al. 1985).

The saturation vapor pressure relationship used in these calculations accounts for elevated water saturation gradients that result from heated water and provides reliable estimates of saturation vapor pressure for temperatures, T, up to 40 °C (Jobson and Schoelhamer 1987):

(7)

 .

Temperature of the surface water is measured at monitoring stations TPSWCCS-1, TPSWCCS-2, TPSWCCS-4, and TPSWCCS-5. Air temperature and relative humidity are measured at meteorological station TPM-1.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 In order to estimate evaporative loss, the control volume was subdivided into four zones (Figure 5.4-8). Zone 1 covers the northern area of the discharge canals; wind speeds applied to this zone are measured north of the control volume and water temperatures are measured at TPSWCCS-1.

Zone 2 covers the middle area of the discharge canals; wind speeds applied to this zone are measured at TPM-1 and water temperatures are measured at TPSWCCS-2. Zone 3 covers the south area of the discharge canals; wind speeds applied to this zone are measured south of the control volume and water temperatures are measured at TPSWCCS-4. Zone 4 covers the return canals; wind speeds applied to this zone are measured at TPM-1 and water temperatures are measured at TPSWCCS-5. The surface area from which water is lost to evaporation in each of these zones changes through time with the changing water elevations in the CCS, and is calculated based upon the 5 zones presented in Figure 5.4-2.

Additional assumptions made in order to estimate evaporative flux include:

x The air temperature and relative humidity measured at TPM-1 are applicable to the entire control volume; x Wind speeds north and south of the control volume were measured at 10 meters above ground surface; an empirical relationship between wind speed and elevation was used to estimate wind speeds at 2 meters above ground surface at these stations; and x Wind speeds employed in evaporative loss calculations were daily averaged values.

Calculated water flow from the control volume due to evaporation is provided in Table 5.4-1.

No salt mass is lost from the control volume to evaporation.

5.4.3.7 Precipitation Precipitation is measured at the site at meteorological station TPM-1 every 15 minutes, and these data informed the precipitation-based inflow in an earlier version of the model (FPL 2011b).

However, a more accurate understanding of spatially-varying precipitation-based inflow was derived from NEXRAD rainfall data and provided by SFWMD. SFWMD converted NEXRAD precipitation data into daily rainfall amounts for the 5 zones depicted in Figure 5.4-2. Coupled with a detailed understanding of the changing surface areas for these zones, the NEXRAD data produced an accurate definition of the daily volumetric inflow of water to the control volume from precipitation. This approach to the calculation of precipitation-based inflow significantly improved the models match to observed water elevations and salinities in the CCS, as well as eliminated the uncertainty introduced by applying TPM-1 rainfall amounts to the entire CCS.

Quantities of water entering the control volume due to precipitation are provided in Table 5.4-1.

No salt enters the control volume through the precipitation. Runoff into the control volume from earth berms between canals was initially assumed to be 50% of precipitation that falls on the berms. This percentage was adjusted during calibration.

5.4.3.8 Blowdown Blowdown refers to water added to the control volume from a number of sources: the Unit 5 cooling tower (originally Floridan aquifer water), Miami-Dade wastewater, and Units 1 through

4. Flow from blowdown into the control volume was initially assumed to be a constant 7.8 MGD; this is an approximate value employed in a previous study of the CCS water balance 5-26

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 (Golder 2008). Estimates and measurements of blowdown contributions to the model were revised based upon available measurements and institutional knowledge. Added water from Units 3 and 4 were assumed to be freshwater (non-saline); Unit 5 blowdown salinities are not known with certainty and were adjusted to between 20% and 80% of seawater (35 PSU) to improve calibration to observed salinities. Inflows to the control volume are presented in Table 5.4-1 for water and Table 5.4-2 for salt mass.

5.4.3.9 Pumped Interceptor Ditch Water The operation of the interceptor ditch requires that large volumes of water be pumped intermittently from the interceptor ditch in order to create seaward flow from L-31E. This pumped water is a blend of ID water and groundwater and is subsequently added to the CCS, comprising a component of inflow to the control volume that is much larger than the regional inflow through the western face of the control volume. Interceptor ditch operation occurs primarily between the months of January and June; pump rates have been as high as 50 MGD and average 4.5 MGD over the 22-month calibration period. The incorporation of this pumped water in the water and salt balance model significantly improved the simulation of water elevations and salinities over prior modeling efforts.

5.4.4 Storage The gain/loss of water and salt mass within the control volume during some period of time results in a change in the control volumes water and salt mass storage. Increased water storage, for instance, occurs when more water enters the control volume than exits. Storage, then, can be estimated by summing all of the components of the water (and salt) balance. When the net flow is positive (into the control volume) during a specified period of time, the storage of control volume increases. Conversely, a net negative (out of the control volume) flow implies a decrease in storage during a specified time period.

Another manner in which a change in storage can be estimated relies on direct measurements of water elevations and salinities within the control volume. A change in water elevation within the control volume can be calculated as a difference between water elevations at the beginning and end of a specified time period. The product of this change in water elevations and the surface area of the control volume provide an estimate of the change in the volume of water contained in the control volume during that period of time. Estimates of daily storage changes derived from this method are used to further calibrate the water and salt balance model to ensure an accurate simulation of temporal trends CCS water elevation and salinity.

5.4.5 Results and Discussion The individual components of the water and salt balance were simulated for each month from September 2010 through June 2012, as well as for the collective 22-month period. The individual components of flow are summed in order to calculate a simulated change in volume for each month and for the 22-month period. These simulated changes in storage were compared to observed changes in CCS water and salt storage for each month and the entire calibration period. Errors between the simulated and observed storage changes were minimized by 5-27

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 adjusting key variables associated with the flow balance model; this process is called calibration.

The calibration process ensures that the model can accurately reflect the average changes in CCS storage over the 22-month time frame, while also effectively capturing day-to-day changes in CCS water and mass storage. Calibration of the water and salt balance model was achieved by adjusting hydraulic conductivities of the aquifer materials adjacent to and beneath the CCS that factor into the calculation of seepage to/from groundwater and Biscayne Bay. Additional adjustable parameters include an evaporation factor that adjusts the coefficients in the wind function (Equation 6), the amount of runoff that enters the control volume as percentage of precipitation, the amount of Unit 5 cooling tower water that is lost to evaporation before entering the CCS, and the salinity of the Unit 5 blowdown as a percentage of seawater. The calibrated model parameter values are provided in Table 5.4-3.

The horizontal hydraulic conductivities laterally adjacent to the control volume were calibrated to range between 150 ft/day and 450 ft/day. The calibrated vertical conductivities beneath the control volume ranged from 0.1 ft/day to 2.6 ft/day. The northern portion of the discharge canals and return canals, where it is assumed deeper canals intersect a high flow zone underlying the muck and Miami limestone, were calibrated to have higher vertical hydraulic conductivities (1 ft/day and 2.6 ft/day, respectively). Lower vertical conductivities were calibrated for the mid-and southern portions of the discharge canals, as well as the southern portion of the return canals (0.1 ft/day).

Results of the simulated 22-month water and salt balance model are provided in Tables 5.4-1 and 5.4-2, respectively. Monthly balance results follow in Table 5.4-4 through Table 5.4-47. The modeled net flow of water, as calculated by the summing the components of the water balance for the 22-month calibration period, is denoted as the Modeled Change in CCS Storage and was calculated to be an average outflow of 0.62 MGD over the 22-month calibration period. The observed change in storage, which is the difference in the volume of water in the CCS between the final and first days of the calibration period, divided by the number of days in the period, was observed to be 0.11 MGD. Thus, the model correctly simulated an increase in CCS storage (a gain of water over the 22-month period). Though the model overestimated the change in storage by approximately 0.51 MGD, this error is small relative to the observed monthly changes in storage, which range between and loss of 46.6 MGD (October 2010) and a gain of 52.1 MGD (September 2010).

Likewise, the model correctly simulated a loss of salt over the 22-month period at rate of 607.9 (lb x 1000)/day. The observed rate of salt outflow was calculated by multiplying the average observed salinity in the CCS on the final and first day of the calibration period by the corresponding CCS volumes on those days. The difference between these two products, divided by the number of days in the calibration period, provides the net outflow of salt, 591 (lb x 1000)/day. As in the case of water flow, the model overestimates the rate of salt flow from the control volume; however, the overestimation is small (16.9 (lb x 1000/day) relative to the monthly average flows, which range from an outflow of 13790 (lb x 1000)/day (October 2010) to an inflow of 8659 (lb x 1000)/day (June 2011).

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 The models capability to simulate day-to-day changes in average CCS water elevations and salinity is illustrated in Figure 5.4-9, which plots modeled average CCS water elevations and observed average CCS water elevations for each day in the 22-month calibration period. The observed values reflect the mean of daily-averaged water elevations across the seven sensors in the CCS. Simulated water elevations are calculated by dividing the simulated daily change in CCS storage by the average daily CCS surface area and adding the resulting value (which reflects a change in water level) to the previous days simulated water elevation. It is evident from this figure that the model effectively captures the general trend in CCS water elevations over the 22-month period, and accurately simulates average CCS water elevations throughout much of the calibration period.

Similarly, Figure 5.4-10 demonstrates the models ability to simulate average CCS salinity.

Observed salinities are the mean of daily averaged salinities measured in the CCS sensors. The simulated CCS salinities are calculated in a manner similar to the CCS water elevations. The simulated daily net flow of salt is divided by the simulated volume of water in the CCS, which results in a change in salinity. This change in salinity is added to the simulated salinity calculated for the previous day to produce a simulated salinity for the current day. As in the case of water elevations, the model performs very well with respect to simulating both the temporal trends in CCS salinity and the magnitude of daily salinities throughout the calibration period.

Inspection of Tables 5.4-4 through 5.4-47 reveals clear trends in wet and dry season flow. For instance, bottom seepage, one of the most dominating components of the balance model, demonstrates a dichotomy associated with flow direction. Net flow through the bottom of the CCS is generally out between the months of September through February. This suggests that lower groundwater elevations from the end of the wet season through the middle of the dry season cause outward flow from the CCS. Conversely, higher water groundwater elevations during much of the wet season, drives flow into the CCS. Intuitively, precipitation-based inflows to the CCS are greater during the wet season; average inflow from precipitation during the wet season is more than twice that for the dry season.

Two major revisions that are included in this years water and salt balance are the use of a surveyed bathymetric surface of the CCS and the use of a more spatially detailed precipitation function that relies on NEXRAD data derived by SFWMD. These two revisions are described below.

Though the surface area and storage of the CCS changes daily, as water and salt flow into and out of the CCS, the 9-month water and salt balance model (FPL 2011b) employed a constant surface area and assumed volume throughout the entire calibration period. However, based upon a bathymetric survey (Morgan and Eklund 2010), detailed information regarding CCS water surface area and volume was incorporated into the current water and salt balance model. This information provided a quantifiable relationship between CCS water elevations and both surface area and volume, such that daily averages of CCS water surface area and volume could be calculated from observed CCS water elevations. These relationships were critical to understanding how much water and salt was gained to and lost from the system on a daily and monthly basis, as wells as how these gains and losses impacted the daily water elevations and 5-29

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 salinities in the CCS. As a result of their incorporation, the bathymetric data improved the accuracy of the model in simulating the changing water elevations and salinities in the CCS throughout the 22-month calibration period.

In addition to a detailed assessment of measured CCS storage characteristics, the simulation of precipitation-based inflows to the control volume was improved due to the availability of SFWMD-derived NEXRAD data. The NEXRAD data provided an accurate representation of the spatial variability in precipitation across the CCS. The spatially-variable daily rainfalls were defined for the five zones for which detailed water surface area data were available. Thus, the accuracy of precipitation inflow to the model due to spatial variability was improved through use of NEXRAD data and the more accurate surface area obtained from the bathymetric data (the model computes inflow volumes as the product of daily precipitation and CCS surface area).

Incorporation of the NEXRAD data, coupled with the detailed understanding of CCS surface areas, proved to be a key element in facilitating a model match to observed monthly flows, water elevations, and salinities. The superiority of the current model calibration, relative to that which employed solely TPM-1 precipitation data, suggests that the NEXRAD data be employed in future applications of the water and salt balance model. Though precipitation data from TPM-1 are not currently used to evaluate rainfall-based freshwater inflow to the CCS, these data are valuable inasmuch as they validate NEXRAD precipitation data. However, additional rain gauges located in the vicinity of the CCS provide no value to this model; the continued measurement of precipitation at these gauges is unnecessary.

The accurate simulation of changing CCS inflows, outflows, water elevations and salinities is complex due to the different components of the balance model and their varying impacts upon CCS water and salt storage. For instance, vertical flows into and out of the control volume are substantially larger than horizontal flows, and have a greater impact upon CCS water elevation.

The salinity of inflowing water, however, can vary depending upon the source of the water. For example, horizontal flow from the west (L-31E) is non-saline and has a pronounced mitigating impact upon CCS salinities; vertical flow from groundwater beneath portions of the discharge canals is hyper-saline and generally increases the salinity of the CCS. The correct balance of both water and salt mass flow is difficult to procure. This complexity, however, constrains the number of possible solutions to the correct simulation of water and salt balance and bolsters confidence in the resulting calibrated model.

In spite of the complexity, this relatively simple spreadsheet-based model accurately simulates the processes that govern and impact the operation of the CCS. The accuracy of the model is evidenced by the models ability to accurately simulate average net water and salt flows for the 22-month calibration period (Table 5.4-1 and Table 5.4-2) and for each individual month in the calibration period (Table 5.4-4 to Table 5.4-47). The simulation of transient water elevations and salinities in the CCS (Figure 5.4-9 and Figure 5.4-10) further demonstrates the quality of the model calibration.

The ability to model complex dynamics associated with the CCS over a 22-month timeframe demonstrates the value of the model as a tool for understanding how the CCS has and will 5-30

FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 operate under varying meteorological, hydrological, and operational conditions. The models accuracy underpins FPLs firm understanding of processes that control the CCS and the manner in which the CCS interacts with the adjacent aquifer and water bodies. Additionally, the model accuracy validates the fact that the most appropriate data are being collected to effectively capture CCS operations, identify interactions between the CCS and the surrounding environment, and support FPLs comprehension of historical and future operations of the CCS.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-1. Water Balance for 22-Month Period (September 2010 through June 2012)

Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.49 329.66 E. Seepage 6.47 4329.53 N. Seepage 0.00 2.28 S. Seepage 0.74 493.67 Into CCS Bot Seepage 7.31 4887.72 Precipitation and Runoff 24.20 16192.89 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.37 247.70 Unit 5 Blowdown 0.87 583.87 ID Pumping 4.59 3068.24 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 45.05 30135.56 W. Seepage -0.06 -1.87 E. Seepage -1.77 -1186.58 N. Seepage -0.01 -3.92 Out of CCS S. Seepage 0.00 -1.20 Bot Seepage -11.09 -7420.00 Precipitation and Runoff 0.00 0.00 Evaporation -31.49 -21067.54 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -44.43 -29681.12 Modeled Change in CCS Storage: 0.62 454.44 Observed Change in CCS Storage: 0.11 74.55 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-2. Salt Balance for 22-Month Period (September 2010 through June 2012)

Water Balance Component lb/day (x 1000) Mass (lb x 1000)

W. Seepage 3.77 2519.53 E. Seepage 1913.88 1280384.11 N. Seepage 0.76 505.87 S. Seepage 145.99 97668.79 Bot Seepage 2021.90 1352651.06 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 50.98 34108.26 ID Pumping 649.59 434574.13 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 4786.86 3202411.74 W. Seepage -56.00 -37464.48 E. Seepage -656.46 -439170.75 N. Seepage -2.69 -1797.60 S. Seepage -0.78 -523.83 Out of CCS Bot Seepage -4678.82 -3130127.24 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5394.74 -3609083.91 Modeled Change in CCS Storage: -607.88 -406672.17 Observed Change in CCS Storage: -590.61 -395118.74 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-3. Calibrated Model Parameter Values Calibrated Model Parameter Units Value Zone A Vertical Hydraulic Conductivity ft/day 1.0 Zone B Vertical Hydraulic Conductivity ft/day 0.10 Zone C Vertical Hydraulic Conductivity ft/day 0.10 Zone D Vertical Hydraulic Conductivity ft/day 2.6 North Seepage Face Horizontal Hydraulic Conductivity ft/day 300 West Seepage Face Horizontal Hydraulic Conductivity ft/day 450 South Seepage Face Horizontal Hydraulic Conductivity ft/day 150 East Seepage Face Horizontal Hydraulic Conductivity ft/day 400 Evaporation Factor (Equation 6) Unitless 0.57 Runoff as Percentage of Rainfall (added to precipitation Unitless 46%

Percentage of Unit 5 Blowdown Lost to Evaporation Unitless 80%

Concentration of Unit 5 Blowdown as Percentage of Seawater (35 PSU) Unitless 20%

Key: ft = Foot. PSU = Practical salinity units.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-4. Water Balance for September 2010 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.35 10.41 E. Seepage 4.33 129.87 N. Seepage 0.01 0.27 S. Seepage 0.76 22.84 Bot Seepage 2.36 70.86 Into CCS Precipitation and Runoff 81.96 2458.65 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Unit 5 Blowdown 0.98 29.36 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 91.03 2730.92 W. Seepage 0.00 0.00 E. Seepage -2.42 -72.73 N. Seepage 0.00 -0.05 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -8.93 -267.82 Precipitation and Runoff 0.00 0.00 Evaporation -37.98 -1139.48 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -49.34 -1480.08 Modeled Change in CCS Storage: 41.69 1250.84 Observed Change in CCS Storage: 52.14 1564.08 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-5. Salt Balance for September 2010 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.73 21.79 E. Seepage 1000.37 30011.06 N. Seepage 1.95 58.53 S. Seepage 31.45 943.47 Bot Seepage 492.65 14779.60 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 57.18 1715.41 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 1584.33 47529.85 W. Seepage 0.00 0.00 E. Seepage -977.74 -29332.09 N. Seepage -0.60 -18.07 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4536.14 -136084.31 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5514.48 -165434.47 Modeled Change in CCS Storage: -3930.15 -117904.62 Observed Change in CCS Storage: 1464.29 43928.58 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-6. Water Balance for October 2010 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.12 3.73 E. Seepage 0.30 9.19 N. Seepage 0.00 0.09 S. Seepage 0.61 18.96 Bot Seepage 0.75 23.20 Into CCS Precipitation and Runoff 14.14 438.35 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Unit 5 Blowdown 0.75 23.11 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16.95 525.56 W. Seepage -0.01 -0.16 E. Seepage -9.77 -302.98 N. Seepage 0.00 -0.12 S. Seepage -0.01 -0.34 Out of CCS Bot Seepage -22.44 -695.59 Precipitation and Runoff 0.00 0.00 Evaporation -26.68 -827.09 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -58.91 -1826.27 Modeled Change in CCS Storage: -41.96 -1300.71 Observed Change in CCS Storage: -46.60 -1444.52 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-7. Salt Balance for October 2010 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.23 7.14 E. Seepage 59.81 1854.15 N. Seepage 0.61 19.05 S. Seepage 2.18 67.44 Bot Seepage 332.43 10305.45 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 43.54 1349.79 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 438.81 13603.03 W. Seepage -50.77 -1573.99 E. Seepage -3777.60 -117105.67 N. Seepage -1.42 -43.87 S. Seepage -4.41 -136.56 Out of CCS Bot Seepage -8516.95 -264025.54 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -12351.15 -382885.62 Modeled Change in CCS Storage: -11912.34 -369282.60 Observed Change in CCS Storage: -13790.42 -427502.87 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-8. Water Balance for November 2010 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.14 4.32 E. Seepage 1.94 58.25 N. Seepage 0.00 0.08 S. Seepage 0.53 15.95 Bot Seepage 1.20 35.95 Into CCS Precipitation and Runoff 27.97 839.20 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Unit 5 Blowdown 0.50 14.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 32.58 977.38 W. Seepage -0.03 -0.94 E. Seepage -3.16 -94.92 N. Seepage 0.00 -0.06 S. Seepage -0.01 -0.20 Out of CCS Bot Seepage -14.43 -433.05 Precipitation and Runoff 0.00 0.00 Evaporation -26.01 -780.31 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -43.65 -1309.48 Modeled Change in CCS Storage: -11.07 -332.11 Observed Change in CCS Storage: -5.02 -150.50 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-9. Salt Balance for November 2010 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.34 10.17 E. Seepage 457.48 13724.36 N. Seepage 0.61 18.16 S. Seepage 19.19 575.66 Bot Seepage 388.92 11667.59 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 29.18 875.37 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 895.71 26871.32 W. Seepage -306.18 -9185.32 E. Seepage -1187.68 -35630.52 N. Seepage -0.82 -24.62 S. Seepage -2.61 -78.43 Out of CCS Bot Seepage -5336.39 -160091.80 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6833.69 -205010.69 Modeled Change in CCS Storage: -5937.98 -178139.37 Observed Change in CCS Storage: -2876.16 -86284.89 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-10. Water Balance for December 2010 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.40 12.46 E. Seepage 7.28 225.71 N. Seepage 0.00 0.00 S. Seepage 0.48 14.92 Bot Seepage 3.90 120.81 Into CCS Precipitation and Runoff 3.90 120.88 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Unit 5 Blowdown 0.72 22.33 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16.97 526.05 W. Seepage 0.00 0.00 E. Seepage -0.20 -6.10 N. Seepage -0.01 -0.25 S. Seepage 0.00 -0.04 Out of CCS Bot Seepage -11.51 -356.87 Precipitation and Runoff 0.00 0.00 Evaporation -24.73 -766.57 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -36.45 -1129.82 Modeled Change in CCS Storage: -19.48 -603.78 Observed Change in CCS Storage: -12.72 -394.29 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. ID = Interceptor Ditch.

MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-11. Salt Balance for December 2010 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.44 44.71 E. Seepage 1890.00 58590.08 N. Seepage 0.00 0.00 S. Seepage 90.83 2815.76 Bot Seepage 990.62 30709.15 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 42.08 1304.34 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3014.97 93464.05 W. Seepage 0.00 0.00 E. Seepage -72.24 -2239.56 N. Seepage -2.87 -88.91 S. Seepage -0.53 -16.39 Out of CCS Bot Seepage -4163.59 -129071.18 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4239.23 -131416.04 Modeled Change in CCS Storage: -1224.26 -37951.99 Observed Change in CCS Storage: -1555.92 -48233.42 Key: CCS = Cooling Canal System. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-12. Water Balance for January 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.83 25.80 E. Seepage 3.98 123.23 N. Seepage 0.00 0.00 S. Seepage 0.41 12.85 Bot Seepage 2.62 81.37 Into CCS Precipitation and Runoff 19.86 615.73 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Unit 5 Blowdown 0.82 25.40 ID Pumping 4.91 152.24 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 33.73 1045.54 W. Seepage 0.00 0.00 E. Seepage -1.67 -51.90 N. Seepage -0.01 -0.27 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -15.15 -469.50 Precipitation and Runoff 0.00 0.00 Evaporation -24.18 -749.43 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -41.00 -1271.10 Modeled Change in CCS Storage: -7.28 -225.56 Observed Change in CCS Storage: -2.54 -78.88 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-13. Salt Balance for January 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.18 98.49 E. Seepage 1077.95 33416.50 N. Seepage 0.01 0.42 S. Seepage 78.05 2419.52 Bot Seepage 683.66 21193.44 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 47.87 1483.96 ID Pumping 185.05 5736.69 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2075.77 64349.02 W. Seepage 0.00 0.00 E. Seepage -654.00 -20273.95 N. Seepage -3.51 -108.76 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -6108.34 -189358.53 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6765.85 -209741.24 Modeled Change in CCS Storage: -4690.07 -145392.21 Observed Change in CCS Storage: -910.35 -28220.95 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-14. Water Balance for February 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.59 16.65 E. Seepage 10.09 282.47 N. Seepage 0.00 0.00 S. Seepage 0.84 23.51 Bot Seepage 9.24 258.62 Into CCS Precipitation and Runoff 0.71 19.81 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.06 Unit 5 Blowdown 0.70 19.46 ID Pumping 2.25 63.03 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 24.70 691.62 W. Seepage 0.00 0.00 E. Seepage -0.15 -4.31 N. Seepage -0.01 -0.34 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -14.17 -396.64 Precipitation and Runoff 0.00 0.00 Evaporation -29.42 -823.64 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -43.75 -1224.93 Modeled Change in CCS Storage: -19.05 -533.31 Observed Change in CCS Storage: -14.26 -399.40 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-15. Salt Balance for February 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.03 56.74 E. Seepage 2692.11 75379.20 N. Seepage 0.00 0.00 S. Seepage 140.71 3939.92 Bot Seepage 2305.86 64564.13 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 40.60 1136.86 ID Pumping 73.70 2063.56 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5255.02 147140.42 W. Seepage 0.00 0.00 E. Seepage -67.69 -1895.27 N. Seepage -5.44 -152.45 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -6339.60 -177508.74 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6412.73 -179556.46 Modeled Change in CCS Storage: -1157.72 -32416.04 Observed Change in CCS Storage: 1264.60 35408.76 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-16. Water Balance for March 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.67 20.71 E. Seepage 8.33 258.32 N. Seepage 0.00 0.04 S. Seepage 0.92 28.50 Bot Seepage 9.57 296.60 Into CCS Precipitation and Runoff 7.23 224.04 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Unit 5 Blowdown 0.66 20.55 ID Pumping 9.37 290.40 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 37.04 1148.09 W. Seepage 0.00 0.00 E. Seepage -0.12 -3.80 N. Seepage 0.00 -0.11 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -9.55 -295.97 Precipitation and Runoff 0.00 0.00 Evaporation -30.85 -956.26 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -40.52 -1256.14 Modeled Change in CCS Storage: -3.49 -108.05 Observed Change in CCS Storage: 3.19 99.02 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-17. Salt Balance for March 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.43 106.48 E. Seepage 2496.42 77388.93 N. Seepage 0.30 9.25 S. Seepage 187.39 5809.16 Bot Seepage 2394.47 74228.63 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 38.73 1200.58 ID Pumping 774.24 24001.46 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5894.98 182744.50 W. Seepage 0.00 0.00 E. Seepage -59.27 -1837.47 N. Seepage -1.57 -48.55 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4384.63 -135923.56 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4445.47 -137809.58 Modeled Change in CCS Storage: 1449.51 44934.91 Observed Change in CCS Storage: 2504.94 77653.08 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-18. Water Balance for April 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.53 15.82 E. Seepage 11.76 352.70 N. Seepage 0.00 0.00 S. Seepage 1.13 33.79 Bot Seepage 13.19 395.55 Into CCS Precipitation and Runoff 10.50 315.01 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Unit 5 Blowdown 1.13 33.95 ID Pumping 7.46 223.80 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 45.98 1379.27 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -0.01 -0.32 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -9.86 -295.69 Precipitation and Runoff 0.00 0.00 Evaporation -31.86 -955.93 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -41.73 -1251.94 Modeled Change in CCS Storage: 4.24 127.33 Observed Change in CCS Storage: -7.85 -235.45 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-19. Salt Balance for April 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.77 113.23 E. Seepage 3758.99 112769.81 N. Seepage 0.00 0.00 S. Seepage 294.59 8837.65 Bot Seepage 3318.51 99555.44 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 66.10 1983.01 ID Pumping 751.05 22531.49 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8193.02 245790.62 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -4.51 -135.23 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4200.79 -126023.58 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4205.29 -126158.82 Modeled Change in CCS Storage: 3987.73 119631.80 Observed Change in CCS Storage: -4057.29 -121718.78 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-20. Water Balance for May 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.68 21.08 E. Seepage 19.10 592.18 N. Seepage 0.00 0.00 S. Seepage 1.31 40.72 Bot Seepage 20.78 644.29 Into CCS Precipitation and Runoff 7.08 219.47 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Unit 5 Blowdown 1.16 35.93 ID Pumping 14.81 459.13 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 65.22 2021.73 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -0.02 -0.72 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -15.50 -480.56 Precipitation and Runoff 0.00 0.00 Evaporation -37.32 -1156.97 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.85 -1638.25 Modeled Change in CCS Storage: 12.37 383.48 Observed Change in CCS Storage: 11.51 356.77 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-21. Salt Balance for May 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 12.42 384.92 E. Seepage 6362.11 197225.56 N. Seepage 0.00 0.00 S. Seepage 433.44 13436.66 Bot Seepage 5223.08 161915.41 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 67.70 2098.75 ID Pumping 3405.55 105571.94 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 15504.30 480633.24 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -11.06 -342.71 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -7418.52 -229974.09 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7429.57 -230316.80 Modeled Change in CCS Storage: 8074.72 250316.44 Observed Change in CCS Storage: 6228.37 193079.32 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-22. Water Balance for June 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.75 22.58 E. Seepage 15.32 459.74 N. Seepage 0.00 0.00 S. Seepage 1.28 38.38 Bot Seepage 22.07 662.08 Into CCS Precipitation and Runoff 8.20 246.08 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.23 Unit 5 Blowdown 1.02 30.60 ID Pumping 16.13 483.83 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 65.25 1957.53 W. Seepage 0.00 0.00 E. Seepage 0.00 -0.11 N. Seepage -0.02 -0.60 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -12.21 -366.29 Precipitation and Runoff 0.00 0.00 Evaporation -40.23 -1206.80 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.46 -1573.79 Modeled Change in CCS Storage: 12.79 383.74 Observed Change in CCS Storage: 10.30 309.07 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-23. Salt Balance for June 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 18.78 563.38 E. Seepage 5643.47 169304.22 N. Seepage 0.00 0.00 S. Seepage 447.06 13411.94 Bot Seepage 5591.99 167759.66 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 59.59 1787.60 ID Pumping 4597.36 137920.85 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16358.26 490747.65 W. Seepage 0.00 0.00 E. Seepage -1.84 -55.08 N. Seepage -9.89 -296.60 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -6075.97 -182279.20 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6087.70 -182630.88 Modeled Change in CCS Storage: 10270.56 308116.77 Observed Change in CCS Storage: 8658.55 259756.64 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-24. Water Balance for July 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.91 28.14 E. Seepage 2.01 62.39 N. Seepage 0.00 0.00 S. Seepage 0.47 14.67 Bot Seepage 7.60 235.47 Into CCS Precipitation and Runoff 46.74 1449.08 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.48 14.76 Unit 5 Blowdown 1.13 35.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 59.34 1839.51 W. Seepage 0.00 0.00 E. Seepage -4.11 -127.34 N. Seepage -0.01 -0.26 S. Seepage -0.02 -0.61 Out of CCS Bot Seepage -13.34 -413.61 Precipitation and Runoff 0.00 0.00 Evaporation -41.06 -1272.84 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -58.54 -1814.66 Modeled Change in CCS Storage: 0.80 24.85 Observed Change in CCS Storage: 9.24 286.59 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-25. Salt Balance for July 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 12.43 385.28 E. Seepage 673.04 20864.34 N. Seepage 0.00 0.00 S. Seepage 142.73 4424.78 Bot Seepage 1535.56 47602.47 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 65.96 2044.75 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2429.73 75321.62 W. Seepage 0.00 0.00 E. Seepage -2055.70 -63726.75 N. Seepage -4.13 -128.16 S. Seepage -9.25 -286.73 Out of CCS Bot Seepage -6701.62 -207750.29 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -8770.71 -271891.94 Modeled Change in CCS Storage: -6340.98 -196570.32 Observed Change in CCS Storage: 3237.34 100357.40 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-26. Water Balance for August 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.02 0.75 E. Seepage 6.85 212.30 N. Seepage 0.00 0.07 S. Seepage 0.77 23.82 Bot Seepage 11.40 353.50 Into CCS Precipitation and Runoff 39.06 1210.89 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.56 Unit 5 Blowdown 1.04 32.25 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 59.62 1848.14 W. Seepage -0.01 -0.40 E. Seepage -0.38 -11.79 N. Seepage 0.00 -0.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -8.82 -273.37 Precipitation and Runoff 0.00 0.00 Evaporation -37.78 -1171.15 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -46.99 -1456.73 Modeled Change in CCS Storage: 12.63 391.41 Observed Change in CCS Storage: 20.17 625.23 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-27. Salt Balance for August 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.17 5.26 E. Seepage 2391.19 74126.89 N. Seepage 0.62 19.11 S. Seepage 111.17 3446.41 Bot Seepage 4186.36 129777.23 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 60.78 1884.07 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6750.29 209258.97 W. Seepage -483.19 -14978.79 E. Seepage -16.77 -519.93 N. Seepage -0.29 -9.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -3409.18 -105684.58 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -3909.43 -121192.33 Modeled Change in CCS Storage: 2840.86 88066.64 Observed Change in CCS Storage: 4028.64 124887.94 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-28. Water Balance for September 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.39 11.72 E. Seepage 4.04 121.17 N. Seepage 0.00 0.01 S. Seepage 0.63 18.90 Bot Seepage 3.05 91.40 Into CCS Precipitation and Runoff 38.92 1167.54 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.49 14.73 Unit 5 Blowdown 0.98 29.36 ID Pumping 5.74 172.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 54.23 1626.91 W. Seepage -0.01 -0.33 E. Seepage -0.82 -24.55 N. Seepage 0.00 -0.14 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -9.62 -288.60 Precipitation and Runoff 0.00 0.00 Evaporation -40.57 -1217.25 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -51.03 -1530.87 Modeled Change in CCS Storage: 3.20 96.04 Observed Change in CCS Storage: -5.14 -154.17 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-29. Salt Balance for September 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.34 40.22 E. Seepage 1119.18 33575.49 N. Seepage 0.07 2.07 S. Seepage 81.28 2438.27 Bot Seepage 888.78 26663.45 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 57.18 1715.41 ID Pumping 406.90 12207.06 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2554.73 76641.96 W. Seepage -371.91 -11157.19 E. Seepage -322.30 -9669.08 N. Seepage -2.27 -68.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4756.06 -142681.75 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5452.53 -163576.04 Modeled Change in CCS Storage: -2897.80 -86934.09 Observed Change in CCS Storage: -3663.57 -109906.97 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-30. Water Balance for October 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.35 10.96 E. Seepage 2.49 77.18 N. Seepage 0.00 0.06 S. Seepage 0.74 23.06 Bot Seepage 2.99 92.81 Into CCS Precipitation and Runoff 55.25 1712.81 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.43 Unit 5 Blowdown 0.75 23.11 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 63.05 1954.43 W. Seepage 0.00 0.00 E. Seepage -3.95 -122.51 N. Seepage 0.00 -0.15 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -14.38 -445.78 Precipitation and Runoff 0.00 0.00 Evaporation -29.09 -901.94 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -47.43 -1470.37 Modeled Change in CCS Storage: 15.61 484.05 Observed Change in CCS Storage: 8.79 272.51 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-31. Salt Balance for October 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.70 21.81 E. Seepage 1244.83 38589.87 N. Seepage 0.23 7.27 S. Seepage 48.75 1511.19 Bot Seepage 2437.55 75564.10 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 43.54 1349.79 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3775.61 117044.03 W. Seepage 0.00 0.00 E. Seepage -440.32 -13649.83 N. Seepage -2.39 -74.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -1825.99 -56605.81 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2268.70 -70329.66 Modeled Change in CCS Storage: 1506.92 46714.37 Observed Change in CCS Storage: -3871.33 -120011.08 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-32. Water Balance for November 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.22 6.64 E. Seepage 5.82 174.56 N. Seepage 0.00 0.13 S. Seepage 0.68 20.31 Bot Seepage 4.03 120.94 Into CCS Precipitation and Runoff 1.29 38.61 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.42 12.59 Unit 5 Blowdown 0.50 14.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 12.96 388.76 W. Seepage 0.00 0.00 E. Seepage -0.43 -12.93 N. Seepage 0.00 -0.04 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -6.95 -208.54 Precipitation and Runoff 0.00 0.00 Evaporation -33.96 -1018.90 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -41.35 -851.65 Modeled Change in CCS Storage: -28.39 -462.88 Observed Change in CCS Storage: -25.56 -766.91 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-33. Salt Balance for November 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.72 21.55 E. Seepage 1026.23 30786.95 N. Seepage 0.75 22.36 S. Seepage 92.38 2771.44 Bot Seepage 633.86 19015.69 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 29.18 875.37 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 1783.11 53493.35 W. Seepage -1.42 -42.48 E. Seepage -175.61 -5268.21 N. Seepage -0.83 -24.90 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -3795.03 -113851.04 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -3972.89 -119186.63 Modeled Change in CCS Storage: -2189.78 -65693.28 Observed Change in CCS Storage: -3673.05 -110191.36 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-34. Water Balance for December 2011 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.49 15.07 E. Seepage 8.46 262.14 N. Seepage 0.00 0.09 S. Seepage 0.76 23.45 Bot Seepage 7.25 224.86 Into CCS Precipitation and Runoff 1.82 56.48 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.54 16.69 Unit 5 Blowdown 0.72 22.33 ID Pumping 9.14 283.37 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 29.18 904.48 W. Seepage 0.00 0.00 E. Seepage -0.09 -2.71 N. Seepage 0.00 -0.08 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -7.26 -225.18 Precipitation and Runoff 0.00 0.00 Evaporation -27.94 -866.27 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -35.30 -1094.23 Modeled Change in CCS Storage: -6.12 -189.75 Observed Change in CCS Storage: -11.66 -361.51 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-35. Salt Balance for December 2011 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.39 43.13 E. Seepage 1598.07 49540.20 N. Seepage 0.61 18.79 S. Seepage 155.78 4829.10 Bot Seepage 1112.42 34485.04 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 42.08 1304.34 ID Pumping 431.13 13365.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3341.47 103585.67 W. Seepage 0.00 0.00 E. Seepage -44.16 -1369.05 N. Seepage -1.21 -37.57 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4135.25 -128192.86 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4180.63 -129599.47 Modeled Change in CCS Storage: -839.16 -26013.81 Observed Change in CCS Storage: -3828.22 -118674.85 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-36. Water Balance for January 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.79 24.34 E. Seepage 10.17 315.38 N. Seepage 0.00 0.01 S. Seepage 0.84 25.94 Bot Seepage 9.89 306.52 Into CCS Precipitation and Runoff 2.87 89.01 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.53 16.35 Unit 5 Blowdown 0.89 27.50 ID Pumping 15.39 476.96 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 41.36 1282.01 W. Seepage 0.00 0.00 E. Seepage -0.01 -0.39 N. Seepage -0.01 -0.33 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -11.42 -354.05 Precipitation and Runoff 0.00 0.00 Evaporation -28.41 -880.83 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -39.86 -1235.60 Modeled Change in CCS Storage: 1.50 46.42 Observed Change in CCS Storage: -9.98 -309.33 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-37. Salt Balance for January 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.23 100.03 E. Seepage 2454.87 76100.84 N. Seepage 0.09 2.88 S. Seepage 183.33 5683.23 Bot Seepage 2919.37 90500.59 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 51.82 1606.43 ID Pumping 2219.37 68800.40 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 7832.08 242794.40 W. Seepage 0.00 0.00 E. Seepage -6.39 -198.09 N. Seepage -5.00 -154.85 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -5281.53 -163727.51 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5292.92 -164080.44 Modeled Change in CCS Storage: 2539.16 78713.95 Observed Change in CCS Storage: -2625.35 -81385.79 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-38. Water Balance for February 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.59 17.09 E. Seepage 4.87 141.21 N. Seepage 0.00 0.13 S. Seepage 0.61 17.71 Bot Seepage 5.40 156.46 Into CCS Precipitation and Runoff 36.40 1055.68 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 13.50 Unit 5 Blowdown 0.78 22.68 ID Pumping 1.50 43.56 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 50.62 1468.02 W. Seepage 0.00 0.00 E. Seepage -0.66 -19.12 N. Seepage 0.00 -0.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -7.93 -230.08 Precipitation and Runoff 0.00 0.00 Evaporation -27.84 -807.25 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -36.43 -1056.46 Modeled Change in CCS Storage: 14.19 411.56 Observed Change in CCS Storage: 12.36 358.44 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-39. Salt Balance for February 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.62 75.86 E. Seepage 1490.74 43231.51 N. Seepage 1.06 30.70 S. Seepage 139.50 4045.55 Bot Seepage 2043.67 59266.34 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 45.68 1324.84 ID Pumping 189.46 5494.29 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3912.73 113469.10 W. Seepage 0.00 0.00 E. Seepage -11.04 -320.18 N. Seepage -0.31 -8.86 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -2808.80 -81455.07 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2820.14 -81784.11 Modeled Change in CCS Storage: 1092.59 31684.99 Observed Change in CCS Storage: 3362.46 97511.42 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-40. Water Balance for March 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.43 13.35 E. Seepage 6.60 204.74 N. Seepage 0.01 0.40 S. Seepage 0.86 26.63 Bot Seepage 9.11 282.49 Into CCS Precipitation and Runoff 2.46 76.17 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.32 9.78 Unit 5 Blowdown 0.99 30.56 ID Pumping 4.10 126.99 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 24.87 771.10 W. Seepage 0.00 0.00 E. Seepage -0.22 -6.83 N. Seepage 0.00 -0.01 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -4.37 -135.32 Precipitation and Runoff 0.00 0.00 Evaporation -28.85 -894.42 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -33.44 -1036.58 Modeled Change in CCS Storage: -8.56 -265.48 Observed Change in CCS Storage: -11.24 -348.30 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-41. Salt Balance for March 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.91 59.15 E. Seepage 2072.56 64249.32 N. Seepage 2.96 91.61 S. Seepage 199.90 6197.01 Bot Seepage 2790.33 86500.25 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 57.59 1785.20 ID Pumping 187.62 5816.11 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5312.86 164698.66 W. Seepage 0.00 0.00 E. Seepage -16.20 -502.25 N. Seepage -0.13 -4.04 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -1733.97 -53753.20 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -1750.31 -54259.48 Modeled Change in CCS Storage: 3562.55 110439.17 Observed Change in CCS Storage: -500.48 -15514.87 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-42. Water Balance for April 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.69 20.65 E. Seepage 7.18 215.31 N. Seepage 0.01 0.15 S. Seepage 0.84 25.21 Bot Seepage 9.86 295.67 Into CCS Precipitation and Runoff 52.17 1565.03 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.35 10.44 Unit 5 Blowdown 0.98 29.41 ID Pumping 9.76 292.86 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 81.82 2454.73 W. Seepage 0.00 0.00 E. Seepage -0.11 -3.36 N. Seepage 0.00 -0.03 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -5.44 -163.10 Precipitation and Runoff 0.00 0.00 Evaporation -30.35 -910.52 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -35.90 -1077.01 Modeled Change in CCS Storage: 45.92 1377.72 Observed Change in CCS Storage: 33.69 1010.73 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-43. Salt Balance for April 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.91 207.36 E. Seepage 2259.55 67786.52 N. Seepage 1.18 35.26 S. Seepage 228.24 6847.28 Bot Seepage 2634.67 79039.99 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 57.26 1717.78 ID Pumping 1035.51 31065.19 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6223.31 186699.39 W. Seepage 0.00 0.00 E. Seepage -54.03 -1620.98 N. Seepage -0.59 -17.72 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -2899.81 -86994.31 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2954.43 -88633.01 Modeled Change in CCS Storage: 3268.88 98066.38 Observed Change in CCS Storage: 4132.59 123977.58 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-44. Water Balance for May 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.58 18.00 E. Seepage 0.22 6.82 N. Seepage 0.01 0.44 S. Seepage 0.28 8.68 Bot Seepage 1.06 32.81 Into CCS Precipitation and Runoff 42.56 1319.51 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.36 11.22 Unit 5 Blowdown 0.97 30.04 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 46.05 1427.54 W. Seepage 0.00 0.00 E. Seepage -6.10 -189.16 N. Seepage 0.00 -0.01 S. Seepage 0.00 -0.01 Out of CCS Bot Seepage -11.72 -363.27 Precipitation and Runoff 0.00 0.00 Evaporation -29.06 -900.80 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -46.88 -1453.25 Modeled Change in CCS Storage: -0.83 -25.72 Observed Change in CCS Storage: -2.89 -89.62 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-45. Salt Balance for May 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.99 123.80 E. Seepage 66.83 2071.87 N. Seepage 3.32 103.06 S. Seepage 36.12 1119.86 Bot Seepage 476.73 14778.51 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 56.61 1755.02 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 643.62 19952.13 W. Seepage 0.00 0.00 E. Seepage -2630.79 -81554.38 N. Seepage -0.18 -5.65 S. Seepage -0.18 -5.72 Out of CCS Bot Seepage -4991.24 -154728.51 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7622.40 -236294.26 Modeled Change in CCS Storage: -6978.78 -216342.13 Observed Change in CCS Storage: -4664.11 -144587.53 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-46. Water Balance for June 2012 Water Balance Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.31 9.37 E. Seepage 1.49 44.65 N. Seepage 0.01 0.29 S. Seepage 0.50 14.87 Bot Seepage 3.52 105.45 Into CCS Precipitation and Runoff 31.83 954.85 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.19 5.80 Unit 5 Blowdown 1.03 30.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 38.88 1166.26 W. Seepage 0.00 -0.03 E. Seepage -4.30 -129.06 N. Seepage 0.00 -0.01 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -8.70 -261.14 Precipitation and Runoff 0.00 0.00 Evaporation -28.76 -862.90 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -41.77 -1253.15 Modeled Change in CCS Storage: -2.90 -86.88 Observed Change in CCS Storage: -3.50 -105.04 Key: CCS = Cooling Canal System. gal = Gallons. ID = Interceptor Ditch. MGD = Millions of gallons per day.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Table 5.4-47. Salt Balance for June 2012 Water Balance Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.97 29.03 E. Seepage 326.55 9796.41 N. Seepage 2.25 67.36 S. Seepage 69.92 2097.49 Bot Seepage 1092.63 32778.88 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 60.32 1809.60 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 1552.63 46578.77 W. Seepage -17.56 -526.71 E. Seepage -1746.75 -52402.41 N. Seepage -0.17 -5.02 S. Seepage 0.00 0.00 Out of CCS Bot Seepage -3478.73 -104361.78 Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5243.20 -157295.92 Modeled Change in CCS Storage: -3690.57 -110717.15 Observed Change in CCS Storage: -2740.38 -82211.41 Key: CCS = Cooling Canal System. ID = Interceptor Ditch. lb = Pound.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 (A)

(B)

Figure 5.4-1. Flow (A) Into and (B) Out of the Proposed Control Volume, Shown in Cross-Section.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPSWCCS-1 TPSWCCS-6 1

5 TPSWCCS-2 2 TPSWCCS-5 4

3 TPSWCCS-4 Figure 5.4-2. Locations of the Five Zones Where the Time-Varying Surface Areas and Storage Volumes are Known.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPSWC-1 TPSWID-1 TPSWC-2 TPSWID-2 TPSWC-3 TPSWID-3 Figure 5.4-3. Locations of L-31E and ID Monitoring Stations; Conceptualized Seepage from L-31E into the ID is Shown.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPSWC-4 TPSWCCS-4 Figure 5.4-4. Locations of TPSWCCS-4 and TPSWC-4 Monitoring Stations; Conceptualized Seepage from Southern Collector Canal into the CCS is Shown.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 Figure 5.4-5. Locations of TPSWCCS-5, TPSWCCS-6 and TPBBSW-3 Monitoring Stations; Conceptualized Seepage from Biscayne Bay into the CCS is Shown.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPGW-6 TPGW-12 Groundwater Interpolation Transect TPGW-10 TPSWCCS-1 Plant Discharge Figure 5.4-6. Locations of TPGW-6, TPGW-10, and TPGW-12 Shallow Groundwater Monitoring Stations, TPSWCCS-1 Surface Water Monitoring Station, and TPFM-1 Plant Outflow Meter; Conceptualized Seepage from the CCS into the Shallow Groundwater is Shown.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPGW-12 TPGW-10 TPGW-1 TPSWCCS-1 A

D TPGW-11 TPSWCCS-2 TPGW-13 TPSWCCS-5 B

C TPSWCCS-4 TPGW-3 Figure 5.4-7. Locations of TPGW and TPSWCCS Monitoring Stations and Four Zones that Subdivide the Control Volume (Zone A Extends Eastward along the Northern Canal to Plant Outflow, Zone D Extends North to the Plant Intake).

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 TPSWCCS-1 TPSWCCS-6 1

TPSWCCS-2 4

TPM-1 2 TPSWCCS-5 3

TPSWCCS-4 Figure 5.4-8. Locations of CCS Monitoring Stations, Meteorological Station TPM-1 and Four Zones that Subdivide the Control Volume (Zone 1 Extends Eastward along the Northern Canal to Plant Outflow, Zone 4 Extends North to the Plant Intake).

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 2.5 2 Simulated Water Elevations Measured Water Elevations CCS Water Elevation (ft NAVD 88) 1.5 1

0.5 0

-0.5

-1

-1.5

-2 Figure 5.4-9. Modeled Versus Measured Water Elevations in the CCS over the 22-Month Period; Used to Validate the Conceptual Model and Calibrate the Water Balance Model to Temporal Trends in Water Elevation.

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FPL Turkey Point Comprehensive Pre-Uprate Monitoring Report for Units 3 & 4 Uprate Project - October 2012 Section 5 90 Simulated Concentration (g/L) 80 Measured Concentration (g/L) 70 CCS Salinity (g/L) 60 50 40 30 Figure 5.4-10. Modeled Versus Measured Salinities in the CCS over the 22-Month Period; Used to Validate the Conceptual Model and Calibrate the Salt Balance Model to Temporal Trends in Salinity.

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002998.FC11.04 Turkey Point Plant Annual Post-Uprate Monitoring Report ort Units 3 & 4 Uprate Project August 2014 Prepared for: Prepared by:

ecology and environment, inc.

Global Environmental Specialists

FPL Turkey Point Annual Post-Uprate Monitoring Report for Units 3 & 4 Uprate Project - August 2014 Section 5 2010 and June 2012. Currently, the modeled period extends through May 2014 and encompasses a Post-Uprate period.

The conceptual model and associated calculations are predominantly unchanged since last presented in the Comprehensive Pre-Uprate Report. As such, only a brief summary of the model is provided below. In addition, model results and corresponding conclusions regarding the operation of the CCS, based on the current calibrated water and salt balance model, are provided herein. The Excel spreadsheet that comprises the model is provided in a separate data file.

5.3.1 Model Summary As Figure 5.3-1 depicts, the water balance for the proposed control volume is comprised of seepage (lateral through the sides and vertical through the bottom), blowdown (additional water pumped from other units to the CCS), precipitation (including runoff from earth berms between canals), and evaporation. Aside from evaporation and precipitation, these are the same mechanisms by which salt flows into and out of the CCS. The means by which water and/or salt is transferred (e.g., seepage, evaporation) are calculated using various equations provided in the Comprehensive Pre-Uprate Report (FPL 2012). Calculations were performed for a 45-month period from September 2010 through May 2014. Average flows of water and salt into and out of the control volume were calculated for each day of this period using hydrologic, water quality, and meteorological data measured within, beneath, and adjacent to the CCS. The average daily flows were summed to estimate the amount of water and salt that enters or exits the control volume (i.e., the CCS) during each month and the entire 45-month period. These calculations demonstrate and validate the conceptual model of the CCS and, in so doing, illustrate the hydrologic mechanisms by which the CCS functions.

Calculated water flows are reported in 106 gallons per day (millions of gallons per day [MGD]).

The mass flux into or out of the control volume is calculated by multiplying the volumetric flow by the salinity of the body of water from which the water is flowing. Salinity was monitored at all groundwater and surface water stations employed in the ensuing calculations and was reported in the practical salinity scale (PSS-78), which is equivalent to grams per liter (g/L).

Calculated mass fluxes are reported in thousands of pounds per day (lb x 1000/day).

The gain/loss of water and salt mass within the control volume during some period of time results in a change in the control volumes water and salt mass storage. Increased water storage, for instance, occurs when more water enters the control volume than exits. Storage, then, can be estimated by summing all of the components of the water (and salt) balance. When the net flow is positive (into the control volume) during a specified period of time, the storage of control volume increases. Conversely, a net negative (out of the control volume) flow implies a decrease in storage during a specified time period.

Another manner in which a change in storage can be estimated relies on direct measurements of water elevations and salinities within the control volume. A change in water elevation within the control volume can be calculated as a difference between water elevations at the beginning and end of a specified time period. The product of this change in water elevations and the 5-4

FPL Turkey Point Annual Post-Uprate Monitoring Report for Units 3 & 4 Uprate Project - August 2014 Section 5 surface area of the control volume provide an estimate of the change in the volume of water contained in the control volume during that period of time. Estimates of daily storage changes derived from this method are used to further calibrate the water and salt balance model to ensure an accurate simulation of temporal trends CCS water elevation and salinity.

5.3.2 Results and Discussion The individual components of the water and salt balance were simulated daily and summed for each month from September 2010 through May 2014, as well as for the collective 45-month period. The individual components of flow are summed in order to calculate a simulated change in volume for each month and for the 45-month period. These simulated changes in storage were compared to observed changes in CCS water and salt storage for each month and the entire calibration period. Errors between the simulated and observed storage changes were minimized by adjusting key variables associated with the flow balance model; this process is called calibration. The calibration process ensures that the model can accurately reflect the average changes in CCS storage over the 45-month time frame, while also effectively capturing day-to-day changes in CCS water and mass storage. Calibration of the water and salt balance model was achieved by adjusting hydraulic conductivities of the aquifer materials adjacent to and beneath the CCS that factor into the calculation of seepage to/from groundwater and Biscayne Bay. Additional adjustable parameters include the coefficients in the wind function (FPL 2012),

the amount of runoff that enters the control volume as percentage of precipitation, the amount of Unit 5 cooling tower water that is lost to evaporation before entering the CCS, and the salinity of the Unit 5 blowdown as a percentage of seawater. The calibrated model parameter values are provided in Table 5.3-1.

The horizontal hydraulic conductivities laterally adjacent to the control volume were calibrated to range between 500 ft/d and 950 ft/d. The calibrated vertical conductivities beneath the control volume ranged from 0.1 ft/day to 4 ft/d. The northern portion of the discharge canals and return canals, where it is assumed deeper canals intersect highly permeable material underlying the muck and Miami limestone, were calibrated to have higher vertical hydraulic conductivities (3.8 ft/d and 4 ft/d, respectively). Lower vertical conductivities were calibrated for the mid- and southern portions of the discharge canals, as well as the southern portion of the return canals (0.1 ft/d).

Results of the simulated 45-month water and salt balance model are provided in Tables 5.3-2 and 5.3-3, respectively. Monthly balance results follow in Table 5.3-4 through Table 5.3-5. The modeled net flow of water, as calculated by the summing the components of the water balance for the 45-month calibration period, is denoted as the Modeled Change in CCS Storage and was calculated to be an average inflow of 0.05 MGD over the 45-month calibration period. The observed change in storage, which is the difference in the volume of water in the CCS between the final and first days of the calibration period, divided by the number of days in the period, was observed to be 0.31 MGD (inflow). Though the model underestimated the net inflow of water from the CCS, the residual error between the simulated and observed flow is only 0.26 MGD.

This error is small (0.26%) relative to the monthly net observed flows, which for the entire 45-month period range from a net outflow of 46.6 MGD (October 2010) and a net inflow of 52.1 5-5

FPL Turkey Point Annual Post-Uprate Monitoring Report for Units 3 & 4 Uprate Project - August 2014 Section 5 MGD (September 2010). During the Post-Uprate period (June 2013 - May 2014), the monthly net observed flows range from a net outflow of 31.1 MGD (June 2013) to a net inflow of 19.6 MGD (July 2013). The model simulates a net outflow of 3.26 MGD of water from the CCS during the Post-Uprate period, which matches the observed net outflow of water during Post-Uprate (3.42 MGD) reasonably well. The net outflow of water during this timeframe is predominantly attributable to a relative lack of precipitation (which accounts for 30% of the simulated inflow during this timeframe) and relatively high evaporation (which accounts for 85%

of the simulated outflow). During the simulated Pre-Uprate and Interim Operating period (September 2010 through May 2013), precipitation accounted for 39.4% of inflowing water to the CCS and evaporation accounted for 63.7% of the outflowing water from the CCS.

The model simulated a net influx of salt over the 45-month period at rate of 1,938 (lb x 1,000)/day. The corresponding observed rate of salt inflow was calculated by multiplying the average observed salinity in the CCS on the final and first day of the calibration period by the corresponding CCS volumes on those days. The difference between these two products, divided by the number of days in the calibration period, provides the net inflow of salt, 497 (lb x 1,000)/day. The error associated with the mass flux is an overestimation by approximately 697 (lb x 1,000)/day. As in the case of water balance simulation, the magnitude of this overestimation is small (3.1%) relative to the range in monthly average flows for the entire 45- month period; the monthly net mass fluxes range from an outflow of 13,790 (lb x 1,000)/day (October 2010) to an inflow of 8,659 (lb x 1,000)/day (June 2011). During the Post-Uprate period (June 2013 - May 2014), the monthly observed net salt mass fluxes range from a net outflow of 6,529 (lb x 1,000)/day (December 2013) to a net inflow of 5,847 (lb x 1,000)/day (April 2014). There was a net gain of salt within the CCS during the Post-Uprate period of 2,216 (lb x 1,000)/day. This gain in salt is likely to be attributable to two factors. First, the relative paucity in freshwater precipitation resulted in reduced CCS water levels. As such, groundwater and associated salt mass account for much of the inflow to the CCS during the Post-Uprate period. Second, the low water levels and relatively high evaporation (which removes freshwater from the CCS and leaves salt behind) resulted in seepage to groundwater being a relatively small component of the water and mass outflow from the CCS. Thus, CCS salt mass outflow was not a pronounced element of the salt balance during the Post-Uprate period and salt mass from evaporation was generally retained. As a result, the CCS gained salt between June 2013 and May 2014.

Figures 5.3-2 and 5.3-3 illustrate the models ability to match the magnitude and direction of net monthly flows of water and salt, respectively. Figure 5.3-2 compares observed and modeled net monthly flows of water into and out of the CCS. There is a seasonal trend in observed flows to/from the CCS, where inflows are generally associated with the wet season and outflows are generally associated with the dry season. The model is able to replicate this trend reasonably well. However, there are isolated months where the model does not accurately simulate the net flow (e.g., April and September 2011). Figure 5.3-3 compares observed and modeled net monthly flows of salt into and out of the CCS. Like the modeled water flows, estimated salt mass fluxes generally match observed fluxes well, though there are individual months where the estimated mass flux is less accurate.

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FPL Turkey Point Annual Post-Uprate Monitoring Report for Units 3 & 4 Uprate Project - August 2014 Section 5 Implicit in the models ability to simulate monthly net water and salt mass flows is the accurate simulation of daily flows to and from the CCS. Because the model is able to characterize the daily flows of water and salt, the model estimates the daily changes in CCS water and salt storage. As previously mentioned, these changes in storage are associated with daily changes in CCS water levels and salinity. Figure 5.3-4 shows the model-calculated water level in the CCS, which varies over the period of record. These modeled water levels range between approximately

-1.5 ft NAVD 88 and 1 ft NAVD 88, and reflects an average water level throughout the entire CCS. Also shown in this figure are the observed CCS water levels over time; the observed values reflect the mean of daily-averaged water elevations across the seven sensors in the CCS.

Simulated water elevations are calculated by dividing the simulated daily change in CCS storage by the average daily CCS surface area and adding the resulting value (which reflects a change in water level) to the previous days simulated water elevation. It is evident from this figure that the model effectively captures the general trend in CCS water elevations over the 45-month period, and accurately simulates average CCS water elevations throughout much of the calibration period.

Similarly, changes in salt mass storage within the CCS can be used to calculate average CCS salinity changes over time. The simulated daily net flow of salt is divided by the simulated volume of water in the CCS, which results in a change in salinity. This change in salinity is added to the simulated salinity calculated for the previous day to produce a simulated salinity for the current day. Like the simulated CCS water level, the model salinity reflects a representative daily salinity throughout the CCS. Figure 5.3-5 compares the simulated salinities to those observed in the CCS over the period of record. Observed salinities are the mean of daily averaged salinities measured in the CCS monitoring stations. The modeled CCS salinity changes over time match changes in the average observed CCS salinity throughout the 45-month period of record. This timeframe includes the recent rise in salinity from approximately 60 g/L to approximately 90 g/L. That the model can match this notable increase in CCS salinity reinforces the conceptual model, which suggests that changes in CCS salinity are predicated solely on changes in the flow of water into and out of the CCS.

The accurate simulation of changing CCS inflows, outflows, water elevations and salinities is complex due to the different components of the balance model and their varying impacts upon CCS water and salt storage. For instance, vertical flows into and out of the control volume are generally larger than horizontal flows, and have a greater impact upon CCS water elevation. The salinity of inflowing water, however, can vary depending upon the source of the water. For example, horizontal flow from the west (L-31E) is non-saline and has a pronounced mitigating impact upon CCS salinities; vertical flow from groundwater beneath portions of the discharge canals is saline to hyper-saline and generally increases the salinity of the CCS. The correct balance of both water and salt mass flow is difficult to estimate in the model. In addition, the simulated timeframe encompasses both Pre- and Post-Uprate periods, during which CCS water temperatures slightly increase. The model addresses associated impacts to the CCS by explicitly simulating the effects of water/air temperature gradients on evaporation. Whereas myriad sources and sinks of water, varying salinities, and changes in water temperature do increase model complexity, the need to accurately simulate these different components of CCS operation constrains the number of possible solutions.

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FPL Turkey Point Annual Post-Uprate Monitoring Report for Units 3 & 4 Uprate Project - August 2014 Section 5 Though the model is able to simulate the complex dynamics associated with the CCS over a 45-month timeframe with reasonable accuracy, there are periods of time where the simulated flows of water and salt do not accurately reflect observed conditions. Consequently, the simulated water level and salinities in the CCS deviate from those that have been observed at various times in the simulation period. However, the overall performance of the model reinforces its utility as a tool for understanding how the CCS has and will operate under varying meteorological, hydrological, and operational conditions. This is best demonstrated by the fact that the same conceptual model employed to characterize changes in CCS storage of water and salt during the Pre-Uprate period is used to explain changes in storage during the Post-Uprate period. This is a period of time during which water levels have generally decreased, salinities have dramatically increased and water temperatures have risen within the CCS. Nevertheless, the exchanges of flows between the CCS and surrounding environment during Post-Uprate are governed by the same hydrologic principles as during the Pre-Uprate period. This robustness and accuracy in the model underpins FPLs firm understanding of processes that control the CCS and the manner in which the CCS interacts with the adjacent aquifer and water bodies. This accuracy in simulating the historical changes within the CCS bolsters confidence in the models utility as a tool to evaluate the sensitivity of CCS operations to certain factors such as changes in operation, drought conditions, storm events, and other potential environmental stresses. Additionally, the model accuracy validates the fact that the most appropriate data are being collected to effectively capture CCS operations, identify interactions between the CCS and the surrounding environment, and support FPLs comprehension of historical and future operations of the CCS.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 TABLES

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-1. Calibration Parameters Calibrated Parameter Name Value Units Vertical Hydraulic Conductivity (Zone A) 3.8 ft/day Vertical Hydraulic Conductivity (Zone B) 0.1 ft/day Vertical Hydraulic Conductivity (Zone C) 0.1 ft/day Vertical Hydraulic Conductivity (Zone D) 4 ft/day West Face Hydraulic Conductivity 950 ft/day East Face Hydraulic Conductivity 1000 ft/day North Face Hydraulic Conductivity 500 ft/day South Face Hydraulic Conductivity 500 ft/day Evaporation Modifier (Factor Multiplier) 0.69 Runoff Modifier (as % of Precipitation) 34%

Blowdown Evaporation Factor 20%

Blowdown Concentration (as % of Seawater) 0.4 5-10

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-2. Calculated Fluid Flows from Water Budget Components September 2010 to May 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.92 1256.71 E. Seepage 15.37 21044.68 N. Seepage 0.01 13.96 S. Seepage 2.39 3274.42 Bottom Seepage 11.47 15708.95 Into CCS Precipitation and Runoff 20.44 27984.72 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 648.79 Unit 5 Blowdown 0.92 1256.99 ID Pumping 3.31 4529.48 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 55.31 75718.69 W. Seepage 0.00 -3.91 E. Seepage -4.12 -5642.91 N. Seepage -0.01 -8.68 S. Seepage -0.12 -162.98 Bottom Seepage -12.48 -17091.43 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -38.53 -52744.39 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -55.26 -75654.30 Modeled Change in CCS Storage: 0.05 64.39 Observed Change 0.31 417.57 Key:

CCS = Cooling Canal System.

gal = Gallon.

ID = Interceptor Ditch.

MGD = Million gallons per day.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-3. Calculated Mass Flows from Salt Budget Components September 2010 to May 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.55 8965.03 E. Seepage 4324.59 5920366.26 N. Seepage 2.30 3150.21 S. Seepage 466.15 638163.40 Bottom Seepage 3350.12 4586312.27 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 107.28 146861.12 ID Pumped Water 363.67 497869.29 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8620.66 11801687.58 W. Seepage -42.58 -58287.90 E. Seepage -1632.46 -2234836.51 N. Seepage -3.05 -4179.04 S. Seepage -63.49 -86913.97 Bottom Seepage -5685.41 -7783332.80 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7426.99 -10167550.22 Modeled Change in CCS Storage: 1193.67 1634137.36 Observed Change 497.04 680445.13 Key:

CCS = Cooling Canal System.

ID = Interceptor Ditch.

lb = Pound(s).

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components September 2010 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.73 21.80 E. Seepage 10.82 324.68 N. Seepage 0.02 0.45 S. Seepage 2.54 76.13 Bottom Seepage 8.29 248.59 Into CCS Precipitation and Runoff 78.65 2359.64 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Unit 5 Blowdown 0.98 29.36 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 102.31 3069.29 W. Seepage 0.00 0.00 E. Seepage -6.06 -181.83 N. Seepage 0.00 -0.08 S. Seepage 0.00 0.00 Bottom Seepage -7.18 -215.33 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -38.11 -1143.43 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -51.36 -1540.66 Modeled Change in CCS Storage: 50.95 1528.63 Observed Change 52.14 1564.08 Key:

CCS = Cooling Canal System.

gal = Gallon.

ID = Interceptor Ditch.

MGD = Million gallons per day.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components October 2010 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.25 7.86 E. Seepage 0.74 22.98 N. Seepage 0.00 0.15 S. Seepage 2.04 63.20 Bottom Seepage 6.04 187.28 Into CCS Precipitation and Runoff 13.60 421.63 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Blowdown 0.75 23.11 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 23.71 735.14 W. Seepage -0.01 -0.33 E. Seepage -24.43 -757.44 N. Seepage -0.01 -0.19 S. Seepage -0.04 -1.13 Bottom Seepage -23.74 -735.81 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -29.88 -926.14 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -78.10 -2421.04 Modeled Change in CCS Storage: -54.38 -1685.91 Observed Change -46.60 -1444.52 5-14

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components November 2010 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.30 9.12 E. Seepage 4.85 145.62 N. Seepage 0.00 0.14 S. Seepage 1.77 53.17 Bottom Seepage 1.67 50.15 Into CCS Precipitation and Runoff 26.93 807.85 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Blowdown 0.50 14.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 36.32 1089.69 W. Seepage -0.07 -1.99 E. Seepage -7.91 -237.30 N. Seepage 0.00 -0.11 S. Seepage -0.02 -0.66 Bottom Seepage -14.98 -449.29 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -29.16 -874.94 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.14 -1564.29 Modeled Change in CCS Storage: -15.82 -474.60 Observed Change -5.02 -150.50 5-15

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components December 2010 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.85 26.31 E. Seepage 18.20 564.28 N. Seepage 0.00 0.00 S. Seepage 1.60 49.75 Bottom Seepage 2.36 73.31 Into CCS Precipitation and Runoff 3.79 117.56 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Blowdown 0.72 22.33 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 27.82 862.46 W. Seepage 0.00 0.00 E. Seepage -0.49 -15.24 N. Seepage -0.01 -0.41 S. Seepage 0.00 -0.13 Bottom Seepage -15.08 -467.61 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -27.76 -860.43 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -43.35 -1343.82 Modeled Change in CCS Storage: -15.53 -481.36 Observed Change -12.72 -394.29 5-16

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components January 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.76 54.46 E. Seepage 9.94 308.08 N. Seepage 0.00 0.00 S. Seepage 1.38 42.83 Bottom Seepage 2.80 86.95 Into CCS Precipitation and Runoff 19.42 602.16 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Blowdown 0.82 25.40 ID Pumping 4.91 152.24 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 41.32 1281.04 W. Seepage 0.00 0.00 E. Seepage -4.19 -129.74 N. Seepage -0.01 -0.45 S. Seepage 0.00 0.00 Bottom Seepage -18.38 -569.72 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -26.80 -830.84 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -49.38 -1530.75 Modeled Change in CCS Storage: -8.06 -249.71 Observed Change -2.54 -78.88 5-17

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components February 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.26 35.15 E. Seepage 25.22 706.19 N. Seepage 0.00 0.00 S. Seepage 2.80 78.37 Bottom Seepage 10.00 279.99 Into CCS Precipitation and Runoff 0.70 19.51 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.06 Blowdown 0.70 19.46 ID Pumping 2.25 63.03 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 43.21 1209.76 W. Seepage 0.00 0.00 E. Seepage -0.38 -10.77 N. Seepage -0.02 -0.56 S. Seepage 0.00 0.00 Bottom Seepage -19.59 -548.63 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -32.26 -903.41 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.26 -1463.38 Modeled Change in CCS Storage: -9.06 -253.62 Observed Change -14.26 -399.40 5-18

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components March 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.41 43.73 E. Seepage 20.83 645.80 N. Seepage 0.00 0.08 S. Seepage 3.06 94.99 Bottom Seepage 11.11 344.53 Into CCS Precipitation and Runoff 7.12 220.82 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Blowdown 0.66 20.55 ID Pumping 9.37 290.40 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 53.87 1669.85 W. Seepage 0.00 0.00 E. Seepage -0.31 -9.51 N. Seepage 0.00 -0.14 S. Seepage 0.00 0.00 Bottom Seepage -17.95 -556.34 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -33.91 -1051.21 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.17 -1617.21 Modeled Change in CCS Storage: 1.70 52.64 Observed Change 3.19 99.02 5-19

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components April 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.11 33.40 E. Seepage 29.39 881.74 N. Seepage 0.00 0.13 S. Seepage 3.75 112.65 Bottom Seepage 16.92 507.68 Into CCS Precipitation and Runoff 10.36 310.85 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.64 Blowdown 1.13 33.95 ID Pumping 7.46 223.80 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 70.43 2112.84 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage 0.00 -0.06 S. Seepage 0.00 0.00 Bottom Seepage -18.57 -557.09 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -35.31 -1059.27 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -53.88 -1616.42 Modeled Change in CCS Storage: 16.55 496.41 Observed Change -7.85 -235.45 5-20

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components May 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.44 44.50 E. Seepage 47.76 1480.44 N. Seepage 0.00 0.00 S. Seepage 4.38 135.75 Bottom Seepage 28.64 887.78 Into CCS Precipitation and Runoff 6.92 214.50 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.93 Blowdown 1.16 35.93 ID Pumping 14.81 459.13 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 105.39 3266.96 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -0.04 -1.19 S. Seepage 0.00 0.00 Bottom Seepage -51.71 -1603.15 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -42.03 -1302.87 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -93.78 -2907.21 Modeled Change in CCS Storage: 11.60 359.75 Observed Change 11.51 356.77 5-21

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components June 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.59 47.67 E. Seepage 38.31 1149.35 N. Seepage 0.00 0.00 S. Seepage 4.26 127.95 Bottom Seepage 28.84 865.18 Into CCS Precipitation and Runoff 8.02 240.68 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.53 15.99 Blowdown 1.02 30.60 ID Pumping 16.13 483.83 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 98.71 2961.25 W. Seepage 0.00 0.00 E. Seepage -0.01 -0.27 N. Seepage -0.03 -1.02 S. Seepage 0.00 0.00 Bottom Seepage -43.32 -1299.71 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -46.24 -1387.09 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -89.60 -2688.10 Modeled Change in CCS Storage: 9.11 273.16 Observed Change 10.30 309.07 5-22

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components July 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.95 60.52 E. Seepage 4.81 149.10 N. Seepage 0.00 0.00 S. Seepage 1.56 48.21 Bottom Seepage 5.91 183.20 Into CCS Precipitation and Runoff 45.19 1400.79 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.54 16.59 Blowdown 1.13 35.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 61.08 1893.42 W. Seepage 0.00 0.00 E. Seepage -12.01 -372.46 N. Seepage -0.01 -0.43 S. Seepage -0.05 -1.58 Bottom Seepage -14.48 -449.03 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -46.43 -1439.30 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -72.99 -2262.80 Modeled Change in CCS Storage: -11.92 -369.38 Observed Change 9.24 286.59 5-23

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components August 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.16 36.08 E. Seepage 14.19 439.99 N. Seepage 0.00 0.13 S. Seepage 2.56 79.39 Bottom Seepage 7.27 225.36 Into CCS Precipitation and Runoff 37.76 1170.55 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.53 16.36 Blowdown 1.04 32.25 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 64.52 2000.11 W. Seepage 0.00 -0.05 E. Seepage -2.37 -73.46 N. Seepage 0.00 -0.03 S. Seepage 0.00 0.00 Bottom Seepage -3.97 -123.00 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -44.75 -1387.17 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -51.09 -1583.72 Modeled Change in CCS Storage: 13.43 416.39 Observed Change 20.17 625.23 5-24

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components September 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.83 24.75 E. Seepage 10.10 302.92 N. Seepage 0.00 0.02 S. Seepage 2.10 62.99 Bottom Seepage 3.65 109.50 Into CCS Precipitation and Runoff 37.53 1125.82 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.55 16.55 Blowdown 0.98 29.36 ID Pumping 5.74 172.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 61.47 1843.99 W. Seepage -0.02 -0.70 E. Seepage -2.05 -61.38 N. Seepage -0.01 -0.21 S. Seepage 0.00 0.00 Bottom Seepage -8.12 -243.67 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -44.87 -1346.23 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -55.07 -1652.19 Modeled Change in CCS Storage: 6.39 191.81 Observed Change -5.14 -154.17 5-25

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components October 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.75 23.15 E. Seepage 6.22 192.95 N. Seepage 0.00 0.11 S. Seepage 2.48 76.86 Bottom Seepage 6.96 215.70 Into CCS Precipitation and Runoff 52.98 1642.32 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.52 16.21 Blowdown 0.75 23.11 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 70.66 2190.41 W. Seepage 0.00 0.00 E. Seepage -9.88 -306.26 N. Seepage -0.01 -0.24 S. Seepage 0.00 0.00 Bottom Seepage -12.38 -383.88 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -32.60 -1010.53 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -54.87 -1700.91 Modeled Change in CCS Storage: 15.79 489.50 Observed Change 8.79 272.51 5-26

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components November 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.47 14.01 E. Seepage 14.55 436.40 N. Seepage 0.01 0.22 S. Seepage 2.26 67.69 Bottom Seepage 6.76 202.89 Into CCS Precipitation and Runoff 1.24 37.18 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.14 Blowdown 0.50 14.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 26.25 787.53 W. Seepage 0.00 -0.01 E. Seepage -1.08 -32.32 N. Seepage 0.00 -0.07 S. Seepage 0.00 0.00 Bottom Seepage -4.06 -121.76 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -34.24 -1027.32 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -39.38 -393.94 Modeled Change in CCS Storage: -13.13 393.58 Observed Change -25.56 -766.91 5-27

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components December 2011 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.03 31.82 E. Seepage 21.14 655.36 N. Seepage 0.01 0.16 S. Seepage 2.52 78.16 Bottom Seepage 7.44 230.79 Into CCS Precipitation and Runoff 1.77 55.02 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.61 18.76 Blowdown 0.72 22.33 ID Pumping 9.14 283.37 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 44.38 1375.75 W. Seepage 0.00 0.00 E. Seepage -0.22 -6.77 N. Seepage 0.00 -0.13 S. Seepage 0.00 0.00 Bottom Seepage -13.23 -410.20 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -30.89 -957.49 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -44.34 -1374.58 Modeled Change in CCS Storage: 0.04 1.16 Observed Change -11.66 -361.51 5-28

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components January 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.66 51.39 E. Seepage 25.43 788.46 N. Seepage 0.00 0.02 S. Seepage 2.79 86.45 Bottom Seepage 10.43 323.45 Into CCS Precipitation and Runoff 2.83 87.58 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.59 18.37 Blowdown 0.89 27.50 ID Pumping 15.39 476.96 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 60.01 1860.18 W. Seepage 0.00 0.00 E. Seepage -0.03 -0.97 N. Seepage -0.02 -0.54 S. Seepage 0.00 0.00 Bottom Seepage -29.36 -910.08 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -32.79 -1016.63 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -62.20 -1928.22 Modeled Change in CCS Storage: -2.19 -68.04 Observed Change -9.98 -309.33 5-29

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components February 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.24 36.07 E. Seepage 12.17 353.03 N. Seepage 0.01 0.23 S. Seepage 2.04 59.02 Bottom Seepage 6.98 202.37 Into CCS Precipitation and Runoff 35.50 1029.63 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.52 15.17 Blowdown 0.78 22.68 ID Pumping 1.50 43.56 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 60.75 1761.77 W. Seepage 0.00 0.00 E. Seepage -1.65 -47.80 N. Seepage 0.00 -0.03 S. Seepage 0.00 0.00 Bottom Seepage -9.41 -272.99 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -31.84 -923.30 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -42.90 -1244.12 Modeled Change in CCS Storage: 17.85 517.65 Observed Change 12.36 358.44 5-30

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components March 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.91 28.18 E. Seepage 18.19 563.76 N. Seepage 0.02 0.67 S. Seepage 2.86 88.75 Bottom Seepage 12.57 389.53 Into CCS Precipitation and Runoff 2.42 74.90 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.35 10.99 Blowdown 0.99 30.56 ID Pumping 4.10 126.99 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 42.40 1314.32 W. Seepage 0.00 0.00 E. Seepage -0.54 -16.60 N. Seepage 0.00 -0.01 S. Seepage 0.00 0.00 Bottom Seepage -7.89 -244.56 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -33.18 -1028.59 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -41.61 -1289.77 Modeled Change in CCS Storage: 0.79 24.56 Observed Change -11.24 -348.30 5-31

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components April 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.45 43.59 E. Seepage 17.94 538.28 N. Seepage 0.01 0.25 S. Seepage 2.80 84.04 Bottom Seepage 14.20 426.09 Into CCS Precipitation and Runoff 50.85 1525.64 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.39 11.73 Blowdown 0.98 29.41 ID Pumping 9.76 292.86 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 98.40 2951.89 W. Seepage 0.00 0.00 E. Seepage -0.28 -8.41 N. Seepage 0.00 -0.05 S. Seepage 0.00 0.00 Bottom Seepage -13.20 -395.99 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -35.04 -1051.09 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -48.52 -1455.54 Modeled Change in CCS Storage: 49.88 1496.35 Observed Change 33.69 1010.73 5-32

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components May 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.23 38.01 E. Seepage 0.55 17.06 N. Seepage 0.02 0.74 S. Seepage 0.93 28.94 Bottom Seepage 11.40 353.36 Into CCS Precipitation and Runoff 41.18 1276.57 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.41 12.61 Blowdown 0.97 30.04 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 56.69 1757.33 W. Seepage 0.00 0.00 E. Seepage -14.73 -456.50 N. Seepage 0.00 -0.02 S. Seepage 0.00 -0.04 Bottom Seepage -12.23 -379.01 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -33.39 -1035.06 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -60.34 -1870.64 Modeled Change in CCS Storage: -3.66 -113.31 Observed Change -2.89 -89.62 5-33

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components June 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.66 19.79 E. Seepage 3.72 111.63 N. Seepage 0.02 0.48 S. Seepage 1.65 49.57 Bottom Seepage 7.95 238.37 Into CCS Precipitation and Runoff 30.82 924.74 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.29 8.66 Blowdown 1.03 30.98 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 46.14 1384.22 W. Seepage 0.00 -0.06 E. Seepage -10.75 -322.64 N. Seepage 0.00 -0.02 S. Seepage 0.00 0.00 Bottom Seepage -13.23 -397.04 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -33.57 -1007.10 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -57.56 -1726.87 Modeled Change in CCS Storage: -11.42 -342.65 Observed Change -3.50 -105.04 5-34

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components July 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.06 32.85 E. Seepage 0.02 0.63 N. Seepage 0.02 0.73 S. Seepage 1.05 32.46 Bottom Seepage 14.22 440.68 Into CCS Precipitation and Runoff 29.66 919.46 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.34 10.51 Blowdown 1.07 33.07 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 47.43 1470.39 W. Seepage 0.00 0.00 E. Seepage -12.89 -399.63 N. Seepage 0.00 0.00 S. Seepage -0.05 -1.46 Bottom Seepage -13.30 -412.33 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -39.84 -1235.10 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -66.08 -2048.51 Modeled Change in CCS Storage: -18.65 -578.12 Observed Change -7.97 -247.19 5-35

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components August 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.09 33.71 E. Seepage 6.43 199.31 N. Seepage 0.02 0.64 S. Seepage 1.86 57.76 Bottom Seepage 12.81 396.99 Into CCS Precipitation and Runoff 40.10 1243.25 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.27 8.51 Blowdown 1.10 34.11 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 63.69 1974.28 W. Seepage 0.00 0.00 E. Seepage -6.81 -211.21 N. Seepage 0.00 0.00 S. Seepage -0.02 -0.67 Bottom Seepage -8.84 -273.91 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -39.04 -1210.28 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -54.71 -1696.07 Modeled Change in CCS Storage: 8.97 278.21 Observed Change 21.72 673.22 5-36

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components September 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.74 22.06 E. Seepage 2.79 83.61 N. Seepage 0.01 0.37 S. Seepage 1.69 50.83 Bottom Seepage 7.98 239.35 Into CCS Precipitation and Runoff 30.04 901.31 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.73 22.00 Blowdown 0.96 28.93 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 44.95 1348.46 W. Seepage -0.01 -0.20 E. Seepage -11.11 -333.35 N. Seepage 0.00 0.00 S. Seepage -0.03 -0.77 Bottom Seepage -15.01 -450.33 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -38.60 -1157.98 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -64.75 -1942.63 Modeled Change in CCS Storage: -19.81 -594.17 Observed Change -5.35 -160.61 5-37

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components October 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.31 9.61 E. Seepage 21.31 660.75 N. Seepage 0.02 0.63 S. Seepage 2.62 81.26 Bottom Seepage 15.41 477.83 Into CCS Precipitation and Runoff 14.29 442.88 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.89 27.69 Blowdown 0.94 29.23 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 55.80 1729.88 W. Seepage -0.02 -0.55 E. Seepage -4.96 -153.62 N. Seepage 0.00 -0.06 S. Seepage -0.01 -0.40 Bottom Seepage -7.18 -222.59 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -38.34 -1188.48 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -50.51 -1565.69 Modeled Change in CCS Storage: 5.30 164.19 Observed Change 7.58 235.01 5-38

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components November 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.43 12.93 E. Seepage 8.63 259.02 N. Seepage 0.02 0.71 S. Seepage 2.20 66.04 Bottom Seepage 14.44 433.31 Into CCS Precipitation and Runoff 1.73 51.85 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.79 23.74 Blowdown 0.66 19.70 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 28.91 867.29 W. Seepage 0.00 0.00 E. Seepage -2.76 -82.85 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -3.44 -103.32 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -28.02 -840.52 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -34.22 -1026.70 Modeled Change in CCS Storage: -5.31 -159.41 Observed Change -3.88 -116.28 5-39

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components December 2012 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.84 26.02 E. Seepage 0.48 14.75 N. Seepage 0.02 0.57 S. Seepage 1.07 33.05 Bottom Seepage 8.05 249.53 Into CCS Precipitation and Runoff 1.87 57.85 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.50 15.62 Blowdown 0.75 23.17 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 13.57 420.55 W. Seepage 0.00 0.00 E. Seepage -8.92 -276.63 N. Seepage 0.00 0.00 S. Seepage 0.00 -0.01 Bottom Seepage -7.14 -221.42 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -22.81 -707.02 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -38.87 -1205.08 Modeled Change in CCS Storage: -25.31 -784.53 Observed Change -28.66 -888.55 5-40

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components January 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.95 29.50 E. Seepage 7.94 246.29 N. Seepage 0.02 0.57 S. Seepage 2.38 73.65 Bottom Seepage 9.83 304.76 Into CCS Precipitation and Runoff 1.06 32.80 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.52 16.25 Blowdown 0.87 26.94 ID Pumping 2.40 74.25 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 25.97 805.01 W. Seepage 0.00 0.00 E. Seepage -2.66 -82.60 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -2.09 -64.77 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -23.85 -739.42 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -28.61 -886.79 Modeled Change in CCS Storage: -2.64 -81.78 Observed Change -10.70 -331.69 5-41

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components February 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.07 30.08 E. Seepage 10.79 302.00 N. Seepage 0.01 0.35 S. Seepage 2.55 71.41 Bottom Seepage 9.59 268.52 Into CCS Precipitation and Runoff 5.45 152.71 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.34 9.50 Blowdown 0.82 22.83 ID Pumping 8.45 236.52 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 39.07 1093.92 W. Seepage 0.00 0.00 E. Seepage -3.25 -91.04 N. Seepage 0.00 -0.01 S. Seepage 0.00 0.00 Bottom Seepage -7.21 -201.87 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -22.90 -641.16 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -33.36 -934.09 Modeled Change in CCS Storage: 5.71 159.83 Observed Change 1.10 30.86 5-42

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components March 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.88 27.34 E. Seepage 21.89 678.71 N. Seepage 0.01 0.18 S. Seepage 3.17 98.25 Bottom Seepage 16.08 498.39 Into CCS Precipitation and Runoff 5.20 161.33 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.52 16.05 Blowdown 0.96 29.83 ID Pumping 7.41 229.77 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 56.12 1739.86 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage 0.00 -0.13 S. Seepage 0.00 0.00 Bottom Seepage -11.23 -348.23 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -27.15 -841.74 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -38.39 -1190.10 Modeled Change in CCS Storage: 17.73 549.76 Observed Change 3.84 119.01 5-43

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components April 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.09 32.79 E. Seepage 25.76 772.76 N. Seepage 0.00 0.00 S. Seepage 2.60 78.12 Bottom Seepage 10.33 309.85 Into CCS Precipitation and Runoff 23.05 691.63 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.71 21.24 Blowdown 0.96 28.69 ID Pumping 9.24 277.20 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 73.74 2212.27 W. Seepage 0.00 0.00 E. Seepage -0.14 -4.26 N. Seepage -0.02 -0.66 S. Seepage 0.00 0.00 Bottom Seepage -25.36 -760.88 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -37.37 -1121.21 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -62.90 -1887.02 Modeled Change in CCS Storage: 10.84 325.25 Observed Change 12.76 382.66 5-44

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components May 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.02 31.48 E. Seepage 14.39 446.22 N. Seepage 0.00 0.00 S. Seepage 1.87 57.86 Bottom Seepage 4.02 124.74 Into CCS Precipitation and Runoff 49.66 1539.39 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.93 28.68 Blowdown 1.08 33.35 ID Pumping 6.15 190.71 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 79.11 2452.43 W. Seepage 0.00 0.00 E. Seepage -1.90 -59.04 N. Seepage -0.01 -0.41 S. Seepage -0.02 -0.69 Bottom Seepage -16.77 -519.88 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -42.31 -1311.46 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -61.02 -1891.48 Modeled Change in CCS Storage: 18.10 560.95 Observed Change 22.68 703.18 5-45

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components June 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 1.07 32.22 E. Seepage 7.03 210.99 N. Seepage 0.00 0.00 S. Seepage 1.06 31.66 Bottom Seepage 2.24 67.19 Into CCS Precipitation and Runoff 18.55 556.60 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.56 16.94 Blowdown 0.99 29.80 ID Pumping 0.68 20.52 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 32.20 965.92 W. Seepage 0.00 0.00 E. Seepage -15.80 -474.03 N. Seepage -0.02 -0.66 S. Seepage -0.63 -18.87 Bottom Seepage -23.48 -704.44 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -45.17 -1355.04 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -85.10 -2553.03 Modeled Change in CCS Storage: -52.90 -1587.12 Observed Change -31.07 -931.98 5-46

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components July 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.92 28.55 E. Seepage 15.42 478.03 N. Seepage 0.00 0.02 S. Seepage 2.04 63.12 Bottom Seepage 7.38 228.73 Into CCS Precipitation and Runoff 48.46 1502.27 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.55 16.95 Blowdown 1.02 31.72 ID Pumping 0.70 21.78 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 76.49 2371.18 W. Seepage 0.00 0.00 E. Seepage -3.03 -94.08 N. Seepage -0.01 -0.33 S. Seepage 0.00 0.00 Bottom Seepage -10.00 -310.06 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -51.16 -1585.93 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -64.21 -1990.40 Modeled Change in CCS Storage: 12.28 380.77 Observed Change 19.61 607.86 5-47

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components August 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.78 24.32 E. Seepage 22.08 684.41 N. Seepage 0.01 0.16 S. Seepage 2.50 77.35 Bottom Seepage 8.36 259.08 Into CCS Precipitation and Runoff 32.70 1013.62 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.70 21.73 Blowdown 1.28 39.82 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 68.40 2120.49 W. Seepage 0.00 0.00 E. Seepage -3.02 -93.58 N. Seepage -0.01 -0.29 S. Seepage -0.03 -0.78 Bottom Seepage -7.51 -232.82 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -73.27 -2271.47 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -83.84 -2598.94 Modeled Change in CCS Storage: -15.43 -478.45 Observed Change -6.11 -189.45 5-48

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components September 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.27 7.98 E. Seepage 16.35 490.64 N. Seepage 0.01 0.43 S. Seepage 1.85 55.50 Bottom Seepage 12.61 378.33 Into CCS Precipitation and Runoff 21.01 630.35 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.36 10.89 Blowdown 0.73 21.80 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 53.20 1595.93 W. Seepage 0.00 0.00 E. Seepage -0.28 -8.28 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -0.63 -19.03 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -34.46 -1033.67 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -35.37 -1060.98 Modeled Change in CCS Storage: 17.83 534.95 Observed Change 10.23 307.04 5-49

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components October 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.32 10.00 E. Seepage 20.94 649.25 N. Seepage 0.03 1.02 S. Seepage 3.47 107.62 Bottom Seepage 27.04 838.34 Into CCS Precipitation and Runoff 7.44 230.56 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.55 16.96 Blowdown 1.13 34.94 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 60.93 1888.70 W. Seepage 0.00 0.00 E. Seepage -0.70 -21.55 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -0.25 -7.81 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -53.02 -1643.73 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -53.97 -1673.08 Modeled Change in CCS Storage: 6.96 215.62 Observed Change -5.40 -167.52 5-50

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components November 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.30 8.93 E. Seepage 17.55 526.60 N. Seepage 0.03 0.82 S. Seepage 3.34 100.05 Bottom Seepage 22.26 667.85 Into CCS Precipitation and Runoff 32.66 979.94 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.49 14.56 Blowdown 0.90 26.92 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 77.52 2325.68 W. Seepage 0.00 -0.03 E. Seepage -0.97 -29.03 N. Seepage 0.00 0.00 S. Seepage -0.52 -15.71 Bottom Seepage -1.31 -39.43 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -42.96 -1288.94 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -45.77 -1373.13 Modeled Change in CCS Storage: 31.75 952.55 Observed Change 13.98 419.29 5-51

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components December 2013 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.38 11.64 E. Seepage 5.56 172.29 N. Seepage 0.01 0.21 S. Seepage 0.00 0.00 Bottom Seepage 4.28 132.60 Into CCS Precipitation and Runoff 4.49 139.14 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.50 15.50 Blowdown 0.90 27.77 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16.10 499.14 W. Seepage 0.00 0.00 E. Seepage -4.05 -125.64 N. Seepage 0.00 -0.03 S. Seepage -3.28 -101.80 Bottom Seepage -6.13 -190.01 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -40.62 -1259.22 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -54.09 -1676.69 Modeled Change in CCS Storage: -37.99 -1177.56 Observed Change -21.47 -665.45 5-52

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components January 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.66 20.51 E. Seepage 11.24 348.43 N. Seepage 0.02 0.48 S. Seepage 1.55 48.07 Bottom Seepage 9.95 308.55 Into CCS Precipitation and Runoff 8.57 265.64 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.68 Blowdown 0.84 25.90 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 33.30 1032.26 W. Seepage 0.00 0.00 E. Seepage -1.39 -43.04 N. Seepage 0.00 0.00 S. Seepage -0.59 -18.28 Bottom Seepage -2.37 -73.59 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -37.88 -1174.16 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -42.23 -1309.07 Modeled Change in CCS Storage: -8.93 -276.81 Observed Change -6.40 -198.28 5-53

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components January 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.66 20.51 E. Seepage 11.24 348.43 N. Seepage 0.02 0.48 S. Seepage 1.55 48.07 Bottom Seepage 9.95 308.55 Into CCS Precipitation and Runoff 8.57 265.64 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.47 14.68 Blowdown 0.84 25.90 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 33.30 1032.26 W. Seepage 0.00 0.00 E. Seepage -1.39 -43.04 N. Seepage 0.00 0.00 S. Seepage -0.59 -18.28 Bottom Seepage -2.37 -73.59 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -37.88 -1174.16 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -42.23 -1309.07 Modeled Change in CCS Storage: -8.93 -276.81 Observed Change -6.40 -198.28 5-54

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components February 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.79 22.17 E. Seepage 15.37 430.48 N. Seepage 0.02 0.57 S. Seepage 3.49 97.74 Bottom Seepage 14.67 410.76 Into CCS Precipitation and Runoff 10.41 291.45 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.48 13.58 Blowdown 0.81 22.76 ID Pumping 1.35 37.89 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 47.41 1327.40 W. Seepage 0.00 0.00 E. Seepage -0.41 -11.39 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -0.94 -26.25 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -51.37 -1438.25 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -52.71 -1475.89 Modeled Change in CCS Storage: -5.30 -148.49 Observed Change -7.95 -222.68 5-55

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components March 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.79 24.35 E. Seepage 16.02 496.70 N. Seepage 0.02 0.71 S. Seepage 3.19 98.98 Bottom Seepage 14.92 462.52 Into CCS Precipitation and Runoff 6.87 212.90 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.39 12.07 Blowdown 1.01 31.25 ID Pumping 1.93 59.76 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 45.14 1399.24 W. Seepage 0.00 0.00 E. Seepage -0.01 -0.37 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -1.40 -43.38 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -49.14 -1523.26 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -50.55 -1567.01 Modeled Change in CCS Storage: -5.41 -167.78 Observed Change -7.86 -243.70 5-56

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components April 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.75 22.64 E. Seepage 27.81 834.36 N. Seepage 0.02 0.67 S. Seepage 3.92 117.48 Bottom Seepage 22.82 684.73 Into CCS Precipitation and Runoff 2.40 71.92 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.33 10.01 Blowdown 1.21 36.35 ID Pumping 3.19 95.76 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 62.46 1873.92 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -5.24 -157.10 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -50.28 -1508.52 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -55.52 -1665.62 Modeled Change in CCS Storage: 6.94 208.31 Observed Change 1.08 32.37 5-57

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-4. Calculated Fluid Flows from Water Budget Components May 2014 Water Budget Component Flow (MGD) Volume (gal x 10^6)

W. Seepage 0.76 23.63 E. Seepage 41.30 1280.37 N. Seepage 0.01 0.18 S. Seepage 4.24 131.29 Bottom Seepage 28.85 894.27 Into CCS Precipitation and Runoff 7.42 229.90 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.46 14.40 Blowdown 1.10 34.21 ID Pumping 7.00 217.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 91.14 2825.32 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage 0.00 -0.06 S. Seepage 0.00 0.00 Bottom Seepage -12.07 -374.12 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation -67.69 -2098.40 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -79.76 -2472.58 Modeled Change in CCS Storage: 11.38 352.75 Observed Change 3.55 110.04 5-58

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components September 2010 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.53 45.92 E. Seepage 2500.92 75027.64 N. Seepage 3.26 97.90 S. Seepage 104.83 3144.88 Bottom Seepage 1942.12 58263.66 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 114.36 3430.81 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 4667.03 140010.82 W. Seepage 0.00 0.00 E. Seepage -2444.34 -73330.24 N. Seepage -1.00 -30.03 S. Seepage 0.00 0.00 Bottom Seepage -3732.66 -111979.85 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6178.00 -185340.12 Modeled Change in CCS Storage: -1510.98 -45329.30 Observed Change 1464.29 43928.58 Key:

CCS = Cooling Canal System.

ID = Interceptor Ditch.

lb = Pound.

5-59

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components October 2010 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.49 15.06 E. Seepage 149.53 4635.38 N. Seepage 1.03 32.01 S. Seepage 7.25 224.80 Bottom Seepage 1882.00 58341.96 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 87.08 2699.59 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2127.38 65948.81 W. Seepage -103.73 -3215.68 E. Seepage -9444.01 -292764.18 N. Seepage -2.35 -72.84 S. Seepage -14.68 -455.19 Bottom Seepage -9054.26 -280682.01 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -18619.03 -577189.91 Modeled Change in CCS Storage: -16491.65 -511241.10 Observed Change -13790.42 -427502.87 5-60

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components November 2010 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.72 21.47 E. Seepage 1143.70 34310.91 N. Seepage 1.02 30.47 S. Seepage 63.96 1918.87 Bottom Seepage 538.98 16169.37 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 58.36 1750.73 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 1806.73 54201.83 W. Seepage -646.37 -19391.23 E. Seepage -2969.21 -89076.29 N. Seepage -1.36 -40.70 S. Seepage -8.71 -261.42 Bottom Seepage -5590.81 -167724.26 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -9216.46 -276493.90 Modeled Change in CCS Storage: -7409.74 -222292.08 Observed Change -2876.16 -86284.89 5-61

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components December 2010 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.04 94.39 E. Seepage 4725.01 146475.21 N. Seepage 0.00 0.00 S. Seepage 302.77 9385.88 Bottom Seepage 674.69 20915.51 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 84.15 2608.67 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5789.67 179479.65 W. Seepage 0.00 0.00 E. Seepage -180.61 -5598.89 N. Seepage -4.76 -147.53 S. Seepage -1.76 -54.64 Bottom Seepage -5505.29 -170663.91 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5692.42 -176464.98 Modeled Change in CCS Storage: 97.25 3014.68 Observed Change -1555.92 -48233.42 5-62

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components January 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.71 207.92 E. Seepage 2694.88 83541.26 N. Seepage 0.02 0.72 S. Seepage 260.16 8065.07 Bottom Seepage 805.49 24970.29 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 95.74 2967.93 ID Pumped Water 185.05 5736.69 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 4048.06 125489.88 W. Seepage 0.00 0.00 E. Seepage -1635.00 -50684.88 N. Seepage -5.83 -180.58 S. Seepage 0.00 0.00 Bottom Seepage -7338.77 -227501.97 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -8979.59 -278367.43 Modeled Change in CCS Storage: -4931.53 -152877.56 Observed Change -910.35 -28220.95 5-63

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components February 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 4.28 119.79 E. Seepage 6730.29 188448.01 N. Seepage 0.00 0.00 S. Seepage 469.04 13133.08 Bottom Seepage 2790.13 78123.66 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 81.20 2273.71 ID Pumped Water 73.70 2063.56 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 10148.64 284161.82 W. Seepage 0.00 0.00 E. Seepage -169.22 -4738.19 N. Seepage -9.05 -253.36 S. Seepage 0.00 0.00 Bottom Seepage -8852.81 -247878.63 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -9031.08 -252870.18 Modeled Change in CCS Storage: 1117.56 31291.64 Observed Change 1264.60 35408.76 5-64

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components March 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 7.25 224.79 E. Seepage 6208.79 192472.59 N. Seepage 0.57 17.59 S. Seepage 624.64 19363.87 Bottom Seepage 3113.68 96524.02 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 77.46 2401.17 ID Pumped Water 774.24 24001.46 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 10806.63 335005.48 W. Seepage 0.00 0.00 E. Seepage -148.18 -4593.68 N. Seepage -2.15 -66.72 S. Seepage 0.00 0.00 Bottom Seepage -8266.32 -256256.01 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -8416.66 -260916.41 Modeled Change in CCS Storage: 2389.97 74089.06 Observed Change 2504.94 77653.08 5-65

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components April 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 7.97 239.04 E. Seepage 9397.48 281924.52 N. Seepage 0.96 28.87 S. Seepage 981.96 29458.82 Bottom Seepage 4763.76 142912.67 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 132.20 3966.02 ID Pumped Water 751.05 22531.49 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16035.38 481061.43 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -0.90 -27.12 S. Seepage 0.00 0.00 Bottom Seepage -7890.82 -236724.70 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7891.73 -236751.82 Modeled Change in CCS Storage: 8143.65 244309.61 Observed Change -4057.292603 -121718.78 5-66

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components May 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 26.21 812.61 E. Seepage 15905.29 493063.91 N. Seepage 0.00 0.00 S. Seepage 1444.80 44788.85 Bottom Seepage 8038.52 249194.22 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 135.40 4197.49 ID Pumped Water 3405.55 105571.94 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 28955.78 897629.03 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -18.40 -570.36 S. Seepage 0.00 0.00 Bottom Seepage -24742.36 -767013.22 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -24760.76 -767583.58 Modeled Change in CCS Storage: 4195.01 130045.45 Observed Change 6228.37 193079.32 5-67

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components June 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 39.65 1189.35 E. Seepage 13544.39 406331.65 N. Seepage 0.00 0.00 S. Seepage 1490.22 44706.45 Bottom Seepage 8163.91 244917.21 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 119.17 3575.20 ID Pumped Water 4597.36 137920.85 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 27954.69 838640.72 W. Seepage 0.00 0.00 E. Seepage -4.59 -137.70 N. Seepage -16.95 -508.48 S. Seepage 0.00 0.00 Bottom Seepage -21348.75 -640462.48 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -21370.29 -641108.66 Modeled Change in CCS Storage: 6584.40 197532.06 Observed Change 8658.55 259756.64 5-68

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components July 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 22.97 712.22 E. Seepage 1630.60 50548.47 N. Seepage 0.00 0.00 S. Seepage 475.00 14724.90 Bottom Seepage 1945.63 60314.59 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 131.92 4089.50 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 4206.12 130389.67 W. Seepage 0.00 0.00 E. Seepage -5721.60 -177369.67 N. Seepage -6.85 -212.23 S. Seepage -23.87 -739.95 Bottom Seepage -8531.61 -264479.96 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -14283.93 -442801.82 Modeled Change in CCS Storage: -10077.81 -312412.15 Observed Change 3237.34 100357.40 5-69

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components August 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 7.40 229.41 E. Seepage 5237.66 162367.43 N. Seepage 0.98 30.43 S. Seepage 370.58 11488.05 Bottom Seepage 3135.13 97189.15 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 121.55 3768.14 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8873.31 275072.61 W. Seepage -65.81 -2040.12 E. Seepage -56.73 -1758.59 N. Seepage -0.60 -18.59 S. Seepage 0.00 0.00 Bottom Seepage -1578.95 -48947.51 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -1702.09 -52764.81 Modeled Change in CCS Storage: 7171.22 222307.79 Observed Change 4028.64 124887.94 5-70

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components September 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.83 84.91 E. Seepage 2797.96 83938.71 N. Seepage 0.12 3.49 S. Seepage 270.92 8127.56 Bottom Seepage 1137.21 34116.32 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 114.36 3430.81 ID Pumped Water 406.90 12207.06 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 4730.30 141908.85 W. Seepage -785.14 -23554.07 E. Seepage -805.76 -24172.71 N. Seepage -3.46 -103.68 S. Seepage 0.00 0.00 Bottom Seepage -3949.78 -118493.44 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5544.13 -166323.91 Modeled Change in CCS Storage: -813.84 -24415.05 Observed Change -3663.57 -109906.97 5-71

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components October 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.49 46.05 E. Seepage 3112.09 96474.66 N. Seepage 0.39 12.19 S. Seepage 162.49 5037.32 Bottom Seepage 5213.92 161631.44 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 87.08 2699.59 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8577.46 265901.26 W. Seepage 0.00 0.00 E. Seepage -1100.79 -34124.58 N. Seepage -3.96 -122.70 S. Seepage 0.00 0.00 Bottom Seepage -52.38 -1623.93 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -1157.14 -35871.22 Modeled Change in CCS Storage: 7420.32 230030.04 Observed Change -3871.33 -120011.08 5-72

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components November 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.52 45.49 E. Seepage 2565.58 76967.38 N. Seepage 1.24 37.31 S. Seepage 307.94 9238.14 Bottom Seepage 2510.60 75318.05 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 58.36 1750.73 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5445.24 163357.10 W. Seepage -2.99 -89.68 E. Seepage -439.02 -13170.52 N. Seepage -1.38 -41.50 S. Seepage 0.00 0.00 Bottom Seepage -1521.48 -45644.54 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -1964.87 -58946.24 Modeled Change in CCS Storage: 3480.36 104410.86 Observed Change -3673.05 -110191.36 5-73

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components December 2011 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.94 91.04 E. Seepage 3995.18 123850.50 N. Seepage 1.01 31.46 S. Seepage 519.26 16096.99 Bottom Seepage 2237.19 69352.75 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 84.15 2608.67 ID Pumped Water 431.13 13365.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 7270.85 225396.49 W. Seepage 0.00 0.00 E. Seepage -110.41 -3422.62 N. Seepage -2.01 -62.16 S. Seepage 0.00 0.00 Bottom Seepage -6366.94 -197375.12 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6479.35 -200859.90 Modeled Change in CCS Storage: 791.50 24536.58 Observed Change -3828.22 -118674.85 5-74

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components January 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.81 211.17 E. Seepage 6137.16 190252.10 N. Seepage 0.16 4.83 S. Seepage 611.10 18944.11 Bottom Seepage 3217.71 99748.94 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 103.64 3212.87 ID Pumped Water 2219.37 68800.40 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 12295.95 381174.41 W. Seepage 0.00 0.00 E. Seepage -15.97 -495.22 N. Seepage -8.30 -257.31 S. Seepage 0.00 0.00 Bottom Seepage -14015.44 -434478.71 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -14039.72 -435231.24 Modeled Change in CCS Storage: -1743.77 -54056.83 Observed Change -2625.35 -81385.79 5-75

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components February 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 5.52 160.15 E. Seepage 3019.88 87576.55 N. Seepage 1.78 51.48 S. Seepage 465.01 13485.18 Bottom Seepage 3938.11 114205.18 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 91.37 2649.68 ID Pumped Water 189.46 5494.29 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 7711.12 223622.50 W. Seepage 0.00 0.00 E. Seepage -792.88 -22993.52 N. Seepage -0.50 -14.61 S. Seepage 0.00 0.00 Bottom Seepage -5050.78 -146472.57 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5844.16 -169480.70 Modeled Change in CCS Storage: 1866.96 54141.81 Observed Change 3362.46 97511.42 5-76

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components March 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 4.03 124.88 E. Seepage 5251.01 162781.35 N. Seepage 4.94 153.03 S. Seepage 666.34 20656.69 Bottom Seepage 4261.43 132104.46 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 115.17 3570.40 ID Pumped Water 187.62 5816.11 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 10490.55 325206.92 W. Seepage 0.00 0.00 E. Seepage -271.03 -8402.01 N. Seepage -0.21 -6.62 S. Seepage 0.00 0.00 Bottom Seepage -3822.04 -118483.22 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4093.29 -126891.84 Modeled Change in CCS Storage: 6397.26 198315.08 Observed Change -500.48 -15514.87 5-77

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components April 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 14.59 437.77 E. Seepage 5648.88 169466.31 N. Seepage 1.97 59.07 S. Seepage 760.81 22824.26 Bottom Seepage 4206.65 126199.62 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 114.52 3435.57 ID Pumped Water 1035.51 31065.19 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 11782.93 353487.78 W. Seepage 0.00 0.00 E. Seepage -135.08 -4052.44 N. Seepage -0.98 -29.32 S. Seepage 0.00 0.00 Bottom Seepage -7211.96 -216358.94 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7348.02 -220440.70 Modeled Change in CCS Storage: 4434.90 133047.07 Observed Change 4132.59 123977.58 5-78

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components May 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 8.43 261.37 E. Seepage 167.09 5179.69 N. Seepage 5.55 172.14 S. Seepage 120.42 3732.88 Bottom Seepage 3176.41 98468.64 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 113.23 3510.03 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3591.12 111324.74 W. Seepage 0.00 0.00 E. Seepage -6338.52 -196494.19 N. Seepage -0.30 -9.32 S. Seepage -0.62 -19.08 Bottom Seepage -5139.67 -159329.63 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -11479.10 -355852.21 Modeled Change in CCS Storage: -7887.98 -244527.47 Observed Change -4664.11 -144587.53 5-79

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components June 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.04 61.29 E. Seepage 816.37 24491.01 N. Seepage 3.75 112.60 S. Seepage 233.05 6991.63 Bottom Seepage 2430.80 72924.06 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 120.64 3619.20 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3606.66 108199.80 W. Seepage -37.06 -1111.94 E. Seepage -4366.87 -131006.04 N. Seepage -0.27 -8.24 S. Seepage 0.00 0.00 Bottom Seepage -5327.02 -159810.66 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -9731.23 -291936.88 Modeled Change in CCS Storage: -6124.57 -183737.08 Observed Change -2740.38 -82211.41 5-80

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components July 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.64 81.86 E. Seepage 5.03 155.99 N. Seepage 5.49 170.22 S. Seepage 67.33 2087.08 Bottom Seepage 3725.02 115475.55 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 124.64 3863.85 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3930.15 121834.54 W. Seepage 0.00 0.00 E. Seepage -5218.31 -161767.61 N. Seepage 0.00 0.00 S. Seepage -19.14 -593.20 Bottom Seepage -5299.15 -164273.54 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -10536.59 -326634.36 Modeled Change in CCS Storage: -6606.45 -204799.82 Observed Change -2497.19 -77412.85 5-81

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components August 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.56 79.25 E. Seepage 1461.90 45319.00 N. Seepage 4.79 148.53 S. Seepage 121.94 3779.99 Bottom Seepage 3312.48 102686.78 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 128.56 3985.44 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5032.23 155998.99 W. Seepage 0.00 0.00 E. Seepage -2580.57 -79997.52 N. Seepage 0.00 0.00 S. Seepage -8.82 -273.56 Bottom Seepage -3380.97 -104809.92 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5970.36 -185081.01 Modeled Change in CCS Storage: -938.13 -29082.02 Observed Change 1642.83 50927.78 5-82

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components September 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.47 44.10 E. Seepage 623.77 18713.19 N. Seepage 2.87 85.98 S. Seepage 27.07 812.14 Bottom Seepage 1848.79 55463.79 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 112.67 3380.18 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2616.65 78499.38 W. Seepage -77.47 -2324.18 E. Seepage -4199.05 -125971.36 N. Seepage -0.02 -0.64 S. Seepage -9.90 -297.00 Bottom Seepage -5567.11 -167013.34 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -9853.55 -295606.52 Modeled Change in CCS Storage: -7236.90 -217107.14 Observed Change -2600.46 -78013.94 5-83

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components October 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 0.86 26.69 E. Seepage 3782.89 117269.47 N. Seepage 3.25 100.85 S. Seepage 453.51 14058.84 Bottom Seepage 3995.58 123863.13 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 110.18 3415.60 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8346.28 258734.58 W. Seepage -187.80 -5821.75 E. Seepage -1844.55 -57181.05 N. Seepage -1.16 -35.89 S. Seepage -4.83 -149.83 Bottom Seepage -2616.30 -81105.23 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4654.64 -144293.77 Modeled Change in CCS Storage: 3691.64 114440.81 Observed Change 6379.02 197749.67 5-84

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components November 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.11 93.25 E. Seepage 1982.22 59466.75 N. Seepage 4.16 124.84 S. Seepage 507.20 15215.92 Bottom Seepage 3748.30 112448.92 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 76.71 2301.26 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6321.70 189650.93 W. Seepage 0.00 0.00 E. Seepage -1089.28 -32678.52 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -1345.04 -40351.31 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2434.33 -73029.83 Modeled Change in CCS Storage: 3887.37 116621.10 Observed Change 2368.82 71064.75 5-85

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components December 2012 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 7.16 222.04 E. Seepage 120.97 3750.04 N. Seepage 4.21 130.51 S. Seepage 213.94 6632.26 Bottom Seepage 2162.13 67026.11 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 87.33 2707.18 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2595.75 80468.14 W. Seepage 0.00 0.00 E. Seepage -3727.61 -115556.04 N. Seepage 0.00 0.00 S. Seepage -0.17 -5.27 Bottom Seepage -2787.01 -86397.17 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6514.79 -201958.48 Modeled Change in CCS Storage: -3919.04 -121490.34 Observed Change -7753.08 -240345.33 5-86

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components January 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 7.13 221.15 E. Seepage 2137.92 66275.51 N. Seepage 4.36 135.08 S. Seepage 509.08 15781.57 Bottom Seepage 2831.19 87766.98 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 101.55 3148.06 ID Pumped Water 60.40 1872.54 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5651.64 175200.90 W. Seepage 0.00 0.00 E. Seepage -1194.63 -37033.67 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -886.76 -27489.51 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2081.39 -64523.18 Modeled Change in CCS Storage: 3570.25 110677.72 Observed Change 525.54 16291.69 5-87

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components February 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 9.73 272.46 E. Seepage 2944.36 82442.07 N. Seepage 2.94 82.31 S. Seepage 662.71 18555.81 Bottom Seepage 2727.16 76360.57 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 95.25 2667.00 ID Pumped Water 324.14 9075.87 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6766.29 189456.09 W. Seepage 0.00 0.00 E. Seepage -1539.91 -43117.37 N. Seepage -0.14 -3.95 S. Seepage 0.00 0.00 Bottom Seepage -3737.34 -104645.54 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5277.39 -147766.86 Modeled Change in CCS Storage: 1488.90 41689.23 Observed Change 1710.98 47907.57 5-88

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components March 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 10.92 338.65 E. Seepage 6720.90 208347.99 N. Seepage 1.42 44.00 S. Seepage 907.96 28146.66 Bottom Seepage 2775.04 86026.14 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 112.44 3485.58 ID Pumped Water 347.21 10763.51 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 10875.89 337152.53 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -2.06 -63.94 S. Seepage 0.00 0.00 Bottom Seepage -4630.17 -143535.30 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -4632.23 -143599.24 Modeled Change in CCS Storage: 6243.65 193553.29 Observed Change 4065.17 126020.42 5-89

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components April 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 13.29 398.66 E. Seepage 7583.24 227497.21 N. Seepage 0.00 0.00 S. Seepage 621.43 18642.97 Bottom Seepage 3016.09 90482.64 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 111.74 3352.32 ID Pumped Water 478.94 14368.08 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 11824.73 354741.89 W. Seepage 0.00 0.00 E. Seepage -67.89 -2036.72 N. Seepage -10.84 -325.20 S. Seepage 0.00 0.00 Bottom Seepage -12414.68 -372440.38 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -12493.41 -374802.29 Modeled Change in CCS Storage: -668.68 -20060.41 Observed Change 4774.59 143237.63 5-90

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components May 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.46 200.39 E. Seepage 4085.21 126641.42 N. Seepage 0.00 0.00 S. Seepage 458.41 14210.60 Bottom Seepage 1178.02 36518.75 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 125.70 3896.83 ID Pumped Water 287.40 8909.54 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6141.21 190377.53 W. Seepage 0.00 0.00 E. Seepage -829.74 -25721.93 N. Seepage -6.57 -203.76 S. Seepage -9.41 -291.63 Bottom Seepage -8045.67 -249415.76 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -8891.39 -275633.07 Modeled Change in CCS Storage: -2750.18 -85255.55 Observed Change 1237.57 38364.62 5-91

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components June 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 4.14 124.17 E. Seepage 2150.78 64523.46 N. Seepage 0.00 0.00 S. Seepage 192.72 5781.63 Bottom Seepage 659.63 19788.97 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 116.04 3481.32 ID Pumped Water 15.15 454.46 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 3138.47 94154.00 W. Seepage 0.00 0.00 E. Seepage -6840.75 -205222.53 N. Seepage -10.10 -303.10 S. Seepage -272.05 -8161.40 Bottom Seepage -10583.21 -317496.26 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -17706.11 -531183.29 Modeled Change in CCS Storage: -14567.64 -437029.29 Observed Change -4607.17 -138215.25 5-92

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components July 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.99 92.71 E. Seepage 4378.23 135725.17 N. Seepage 0.00 0.00 S. Seepage 385.67 11955.68 Bottom Seepage 2207.77 68440.94 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 119.57 3706.56 ID Pumped Water 16.53 512.41 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 7110.76 220433.48 W. Seepage 0.00 0.00 E. Seepage -1372.52 -42548.06 N. Seepage -6.19 -191.85 S. Seepage 0.00 0.00 Bottom Seepage -4865.49 -150830.09 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -6244.19 -193570.00 Modeled Change in CCS Storage: 866.56 26863.49 Observed Change 4833.38 149834.84 5-93

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components August 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.89 58.46 E. Seepage 4344.14 134668.40 N. Seepage 0.40 12.37 S. Seepage 323.17 10018.35 Bottom Seepage 1637.07 50749.12 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 108.99 3378.64 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 6415.66 198885.33 W. Seepage 0.00 0.00 E. Seepage -1329.80 -41223.88 N. Seepage -6.00 -186.11 S. Seepage -11.98 -371.29 Bottom Seepage -3824.23 -118551.19 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -5172.02 -160332.47 Modeled Change in CCS Storage: 1243.64 38552.86 Observed Change 3101.52 96147.08 5-94

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components September 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.44 43.23 E. Seepage 5544.96 166348.73 N. Seepage 3.92 117.62 S. Seepage 550.99 16529.68 Bottom Seepage 4740.46 142213.90 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 127.36 3820.73 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 10969.13 329073.89 W. Seepage 0.00 0.00 E. Seepage -149.50 -4484.98 N. Seepage -0.19 -5.75 S. Seepage 0.00 0.00 Bottom Seepage -375.37 -11261.16 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -525.06 -15751.89 Modeled Change in CCS Storage: 10444.07 313321.99 Observed Change 5122.20 153666.00 5-95

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components October 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.11 34.27 E. Seepage 4338.18 134483.49 N. Seepage 7.80 241.71 S. Seepage 638.39 19790.19 Bottom Seepage 7719.11 239292.29 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 131.68 4082.17 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 12836.26 397924.13 W. Seepage 0.00 0.00 E. Seepage -351.11 -10884.34 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -127.96 -3966.81 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -479.07 -14851.15 Modeled Change in CCS Storage: 12357.19 383072.99 Observed Change 5172.10 160335.08 5-96

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components November 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.54 46.14 E. Seepage 3784.29 113528.78 N. Seepage 6.40 192.02 S. Seepage 788.22 23646.53 Bottom Seepage 4634.87 139046.00 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 104.86 3145.67 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 9320.17 279605.14 W. Seepage -24.64 -739.25 E. Seepage -522.89 -15686.55 N. Seepage 0.00 0.00 S. Seepage -280.41 -8412.37 Bottom Seepage -1054.80 -31643.98 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -1882.74 -56482.15 Modeled Change in CCS Storage: 7437.43 223122.99 Observed Change 3117.41 93522.19 5-97

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components December 2013 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 1.72 53.40 E. Seepage 1116.93 34624.86 N. Seepage 1.41 43.82 S. Seepage 0.00 0.00 Bottom Seepage 1208.70 37469.70 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 104.66 3244.56 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 2433.43 75436.35 W. Seepage 0.00 0.00 E. Seepage -2138.71 -66299.91 N. Seepage -0.72 -22.30 S. Seepage -1832.93 -56820.81 Bottom Seepage -3278.69 -101639.42 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -7251.05 -224782.44 Modeled Change in CCS Storage: -4817.62 -149346.09 Observed Change -6529.12 -202402.80 5-98

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components January 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 2.72 84.28 E. Seepage 2474.28 76702.81 N. Seepage 3.76 116.46 S. Seepage 197.48 6121.95 Bottom Seepage 2808.39 87059.94 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 97.62 3026.14 ID Pumped Water 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 5584.24 173111.57 W. Seepage 0.00 0.00 E. Seepage -733.83 -22748.81 N. Seepage -0.11 -3.52 S. Seepage -322.82 -10007.33 Bottom Seepage -1256.16 -38940.86 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -2312.92 -71700.52 Modeled Change in CCS Storage: 3271.32 101411.05 Observed Change -445.87 -13822.03 5-99

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components February 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.45 96.51 E. Seepage 4009.26 112259.16 N. Seepage 4.91 137.49 S. Seepage 305.60 8556.90 Bottom Seepage 4137.32 115844.97 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 94.98 2659.47 ID Pumped Water 26.82 750.88 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 8582.34 240305.39 W. Seepage 0.00 0.00 E. Seepage -216.72 -6068.14 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -527.63 -14773.52 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -744.34 -20841.66 Modeled Change in CCS Storage: 7837.99 219463.73 Observed Change 625.60 17516.93 5-100

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components March 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 3.87 120.12 E. Seepage 4519.76 140112.41 N. Seepage 5.56 172.22 S. Seepage 282.87 8768.83 Bottom Seepage 4212.27 130580.33 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 117.78 3651.18 ID Pumped Water 44.90 1391.85 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 9187.00 284796.94 W. Seepage 0.00 0.00 E. Seepage -7.14 -221.35 N. Seepage -0.08 -2.45 S. Seepage 0.00 0.00 Bottom Seepage -949.86 -29445.56 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -957.08 -29669.35 Modeled Change in CCS Storage: 8229.92 255127.58 Observed Change 3657.01 113367.46 5-101

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components April 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 6.46 193.90 E. Seepage 9135.31 274059.17 N. Seepage 5.79 173.62 S. Seepage 674.16 20224.71 Bottom Seepage 6679.44 200383.16 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 141.58 4247.38 ID Pumped Water 100.96 3028.93 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 16743.70 502310.88 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage 0.00 0.00 S. Seepage 0.00 0.00 Bottom Seepage -3970.68 -119120.46 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -3970.68 -119120.46 Modeled Change in CCS Storage: 12773.01 383190.43 Observed Change 5846.87 175406.11 5-102

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 Table 5.3-5. Calculated Mass Flows from Salt Budget Components May 2014 Mass Budget Component lb/day (x1000) Mass (lb x 1000)

W. Seepage 19.46 603.27 E. Seepage 14107.29 437325.92 N. Seepage 1.45 44.98 S. Seepage 1396.99 43306.83 Bottom Seepage 8690.90 269417.84 Into CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 128.95 3997.50 ID Pumped Water 392.49 12167.09 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total In: 24737.53 766863.42 W. Seepage 0.00 0.00 E. Seepage 0.00 0.00 N. Seepage -1.50 -46.56 S. Seepage 0.00 0.00 Bottom Seepage -9219.39 -285801.22 Out of CCS Precipitation and Runoff 0.00 0.00 Evaporation 0.00 0.00 Unit 3, 4 Added Water 0.00 0.00 Unit 5 Blowdown 0.00 0.00 ID Pumping 0.00 0.00 Plant Outflow Equal to Intake Plant Intake Equal to Outflow Total Out: -9220.90 -285847.79 Modeled Change in CCS Storage: 15516.63 481015.64 Observed Change 5312.43 164685.21 5-103

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 (A)

(B)

Figure 5.3-1. Flow (A) into and (B) out of the CCS, Shown in Cross-Section.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 60 Modeled Flow Observed Flow 40 20 Water Flow (MGD) 0

-20

-40

-60 Figure 5.3-2. Modeled versus Measured Net Monthly Flows of Water for the CCS over the 45-Month Period.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 20000 Modeled Flow 15000 Observed Flow 10000 Salt Flow (lb x 1000/day) 5000 0

-5000

-10000

-15000

-20000 Figure 5.3-3. Modeled versus Measured Net Monthly Flows of Salt Mass for the CCS over the 45-Month Period 5-118

F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 2.5 Simulated Water Elevations 2

Measured Water Elevations 1.5 CCS Water Elevation (ft NAVD 88) 1 0.5 0

-0.5

-1

-1.5

-2 Figure 5.3-4. Modeled versus Measured Water Elevations (NAVD 88) in the CCS over the 45-Month Period; Used to Validate the Conceptual Model and Calibrate the Water Balance Model to Temporal Trends in Water Elevation.

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F P L Turk ey P oint Annual P ost-Uprate M onitoring R eport for Units 3 & 4 Uprate P roject - August 2014 Section 5 100 Simulated Concentration (g/L) 90 Measured Concentration (g/L) 80 CCS Salinity (g/L) 70 60 50 40 30 Figure 5.3-5. Modeled versus Measured Salinity in the CCS over the 45-Month Period; Used to Validate the Conceptual Model and Calibrate the Water Balance Model to Temporal Trends in Salinity.

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