Comparison of Agricultural Water Use Estimates Available for the CFWI Region For the HAT

 Current USGS ECFT Model Method  SJRWMD Annual Water Use Survey Summaries  USGS Water Use Surveys for 1995, 2000, 2005  SJRWMD - CFCA Historic Agricultural Estimation Project developed for USGS ANN Available Data for Estimated Agricultural Water Use

 AFSIRS based for SJR and SF. (SWF Not estimated and uses metered data)  Incorporates Land Use Flux Code information for agriculture for SJR and SF to identify irrigated parcels for 1995, 2000, and  SJR locations were verified in 2005 for crop type and irrigation method  Uses daily RADAR Rainfall and GOES ET data that was substituted for the long term climate data in the AFSIRS model  Monthly AFSIRS quantities were adjusted with Bench Mark Farms application rates for several crop types to reflect metered data  Tables were developed to adjust AFSIRS rate to BMF rates for Ridge Citrus, Flatwoods Citrus, Leather leaf Fern, Nursery, Potatoes, Ferns, and Sod.  Well location were created for each model cell or cells that fell into the polygons identified in land use. Actual well locations were used for SWF only.  Daily irrigation quantities were created to be incorporated into the Green- AMPT for recharge calculations. Current USGS ECFT Model Agricultural Estimates

 Based on the Modifiled Blaney-Criddle model  Uses long term climatic data available with the MBC model  Generalized county wide acreage estimates provided by the Agricultural Extension agency  Provides no monthly temporal data  No spatial reference is provided other than county level totals by crop SJRWMD Annual Water Use Surveys

 Published 5 year intervals  County Totals  Generally taken from WMDs  Appears to have discrepancies with WMD reported data  Annual values provide no monthly temporal data  No spatial reference is provided other than county level totals by crop USGS Water Use Surveys

 Historical evaluation for 1957 through 2010  Uses per acreage application rate estimates from NASS (for citrus), USGS, and WMDs for other crops  Polygons representing historic land cover from land use/land cover data from USGS, WMDs, FGDL, and other GIS sources used then scale based on best acreage estimates from other sources (particularly NASS citrus acreage estimates)  The groundwater use estimates are then allocated to polygons based on proportional acreage. And although the exact polygon acreage of the GIS data is not the same as the acreages used to generate the groundwater use estimates, the final distribution of ground water use (on a semi- regional, county-wide scale) is assumed to be accurate based this proportional distribution CFCA Historic Agricultural Estimation

Orange County Agricultural Pumping Estimates (MGD)

Orange County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Orange County Agricultural Irrigation Rates (In/Yr) Used in ECFT Model Year95 Total96 Total97 Total98 Total99 Total00 Total01 Total02 Total03 Total04 Total ORANGE_CABBAGE ORANGE_CITRUS ORANGE_CORN,FIELD ORANGE_FERNS ORANGE_NURSERY,CNTR ORANGE_NURSERY,FLD ORANGE_PASTURE ORANGE_SMALL VEGETS ORANGE_SOD

Orange County Agricultural Acre Estimates from SJRWMD Annual Water Use Survey crop 95 acres 95 acres 96 acres 97 acres 98 acres 99 acres 00 acres 01 acres 02 acres 03 acres 04 acres 05acres 06 Cabbage Carrots6,875 5, ,596 Citrus3,596 1,798 3,561--3,596 - Cucumbers Ferns Field corn Foliage Miscellaneous vegetables8, Ornamental (field grown) Ornamentals (container grown) Sod Sorghum Soybeans Sweet corn6, Tomatoes Turf grass (other) Watermelons Woody ornamentals Total29,93529,83028,7154,1102,5624,1215,2041,6086,440

Orange County Agricultural Irrigation Rate Estimates (In/Yr) from SJRWMD Annual Water Use Survey croprate 95rate 96rate 97rate 99 rate 00rate 01rate 02rate 03rate 04rate 05rate 06 Cabbage Carrots Citrus Cucumbers Ferns Field corn Foliage Miscellaneous vegetables Ornamental (field grown) Ornamentals (container grown) Sod Sorghum Soybeans Sweet corn Tomatoes Turf grass (other) Watermelons Woody ornamentals

Lake County Agricultural Pumping Estimates (MGD)

Lake County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Lake County Agricultural Irrigation Rates Used in ECFT Model Year95 Total96 Total97 Total98 Total99 Total00 Total01 Total02 Total03 Total04 Total LAKE_BEANS,GRN LAKE_BLUEBERRY LAKE_CITRUS LAKE_CORN,SWEET LAKE_FERNS LAKE_GRAPES LAKE_GREENS,HERBS LAKE_MELONS LAKE_NURSERY,CNTR LAKE_NURSERY,FLD LAKE_PASTURE LAKE_PEACHES LAKE_PECANS LAKE_SMALL VEGETS LAKE_SOD LAKE_SQUASH LAKE_TURF,LNDSCP

Lake County Agricultural Acre Estimates from SJRWMD Annual Water Use Survey crop acres 95 acres 96 acres 97 acres 98 acres 99 acres 00 acres 01 acres 02mgd 02 acres 04 acres 05 acres 06 Blueberries Cabbage Carrots Citrus16,842 3,158 16, Cucumbers Ferns Field corn Foliage Fruit miscellaneous Grapes Improved pasture1, Miscellaneous fruit Miscellaneous vegetables Ornamentals (container grown) , ,768 Ornamentals (field grown) Peaches Pecans Potatoes Sod ,000 Sorghum Strawberries Sweet corn Turf grass (other) Watermelons Woody ornamentals Total24,57024,400 6,925 20,72723,5293, ,176 21,631

Lake County Agricultural Irrigation Rate Estimates (In/Yr) from SJRWMD Annual Water Use Survey Croprate 95rate 96rate 97rate 98rate 99rate 00rate 01rate 02rate 03rate 04rate 05rate 06 Blueberries Cabbage Carrots Citrus Cucumbers Ferns Field corn Foliage Fruit miscellaneous Grapes Improved pasture Miscellaneous fruit Miscellaneous vegetables Ornamentals (container grown) Ornamentals (field grown) Peaches Pecans Potatoes Sod Sorghum Strawberries Sweet corn Turf grass (other) Watermelons Woody ornamentals Total

Seminole County Agricultural Pumping Estimates (MGD)

Seminole County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Seminole County Agricultural Irrigation Rates (In/Yr) Used in ECFT Model Year95 Total96 Total97 Total98 Total99 Total00 Total01 Total02 Total03 Total04 Total SEMINOLE_BLUEBERRY SEMINOLE_CITRUS SEMINOLE_CORN,SWEET SEMINOLE_GRAPES SEMINOLE_MELONS SEMINOLE_NURSERY,CNTR SEMINOLE_NURSERY,FLD SEMINOLE_PASTURE SEMINOLE_SMALL VEGETS SEMINOLE_SOD

Seminole County Agricultural Acre Estimates from SJRWMD Annual Water Use Survey cropacres 95acres 96acres 97acres 98acres 99acres 00acres 01acres 02acres 03acres 04acres 05acres 06 Blueberries Cabbage Citrus1,816 1,400 1,378- 1,280 Cucumbers Ferns Field corn Field miscellaneous Foliage Grapes Improved pasture ,000 Miscellaneous grains Miscellaneous vegetables Ornamentals (container grown) Ornamentals (field grown) ,00068 Peppers Potatoes Sod Strawberries Sweet corn Tomatoes Turf grass (other) Watermelons Woody ornamentals Total4,7974,0113, ,6302,7472,719 2,830 3,9683,018

Seminole County Agricultural Irrigation Rate Estimates (In/Yr) from SJRWMD Annual Water Use Survey Croprate 95rate 96rate 97rate 98rate 99rate 00rate 01rate 02rate 03rate 04rate 05rate 06 Blueberries Cabbage Citrus Cucumbers Ferns Field corn Field miscellaneous Foliage Grapes Improved pasture Miscellaneous grains Miscellaneous vegetables Ornamentals (container grown) Ornamentals (field grown) Peppers Potatoes Sod Sod 74 Strawberries Sweet corn Tomatoes Turf grass (other) Watermelons Woody ornamentals Total

Osceola County Agricultural Pumping Estimates (MGD)

Osceola County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Brevard County Agricultural Pumping Estimates (MGD)

Brevard County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Indian River County Agricultural Acres in SJRWMD for 1995, 2000, 2005, &EOP

Conclusion from Comparison of Water Use Estimates  Four Estimates are available  ECFT AFSIRS Method Falls into the Range of Estimates  ECFT AFSIRS is only Method to Incorporate Same Data Used in the ECFT Calibrated Model, All Other Methods Rely on Average Climate Data  ECFT AFSIRS Method Appears to Provide Reasonable Annual average application