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# Reclaimed_Water_BC_Calculator_Irrigation

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### Reclaimed_Water_BC_Calculator_Irrigation

1. 1. Reclaimed Water Benefit-Cost Calculator For Irrigation - Worksheet Instructions1. Is reclaimed water service available to youroperation? If Yes, continue to Question 2. If YES, continue toNo, Stop Here. Question 2. NO, Stop Here2. Is reclaimed water the only water sourceavailable to your operation? If Yes, Stop Here. NO, continue to Question 3 andIf No, continue to Question 3 and complete the complete the RW ComparisonRW Comparison Worksheet. YES, Stop Here Worksheet.3. What other water source(s) are available toyour operation for irrigation? (circle all thatapply) Floridan aquifer Intermediate aquifer Surface water source Other, please specify:4. Of these water sources, which is the water source that would bereplaced, in whole or in part, by reclaimed water? For the purposes ofthe RW Comparison Worksheet, this water source will be called the"Next Available Water Source" or NAWS.5. Has the applicant obtained, from the reclaimed water provider, thenutrient contents and chemical constituents in the reclaimed water,including nitrogen, phosphorus, potassium, trace elements including YES ______boron, and the electrical conductivity and sodium absorption ratio NO _____(sodium, chloride and magnesium) of the water? This informationshould be used to assist in estimating the benefits and costs of usingreclaimed water for irrigation.Enter the information in the Spreadsheet titled "RW Comparison Worksheet".The other spreadsheets calculate values referred to by the "RW ComparisonWorksheet" spreadsheet.Color Code of RW Comparison Worksheet means calculated numbers means entered by user means this is a drop down menu means parameters of equations (assumed values) means keep as blank cellUse the following sources to determine prevailing energy costs: Gasoline and Diesel Fuel: U.S. Government: http://tonto.eia.doe.gov/oog/info/gdu/gasdiesel.asp AAA: http://www.fuelgaugereport.com/FLmetro.asp Electricity: U.S. Government: http://www.neo.ne.gov/statshtml/115.htm http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_ a.htmlFor fertilizer prices go to:http://www.ers.usda.gov/Data/FertilizerUse/Use Table 7 (Excel Spreadsheet) to determine the current price of fertilizer. Scroll down to the mostrecent year and use the cost of "Urea 45-46% Nitrogen.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet Instruc 7/21/2011
2. 2. Prepared by: Hazen and Sawyer, July 8, 2010D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet Instruc 7/21/2011
3. 3. MODEL DISCLAIMERThe Reclaimed Water Benefit-Cost Calculator for Irrigation is to be used to provide guidance as to theeconomic feasibility of using reclaimed water for a specific purpose. The values that the user will inputinto the model are estimates and the model results should not be the only factor in determiningeconomic feasibility. Instead, the model results should be viewed in the proper context of all otherinformation submitted and relevant to the water use permit application or renewal.The example values used in the models and referenced in the accompanying report are purelyillustrative for the purposes of this study presentation only. Readers and users are advised to developproper estimates of costs and benefits that would be appropriate for their individual site(s). Exceptwhere explicitly directed (e.g. , to obtain the proper values of nitrogen fertilizer and fuel costs fromspecific websites), the example values provided in the model and in this report are NOT “default”values.For information regarding how to use this Reclaimed Water Benefit-Cost Calculator for Irrigation, pleaseread Chapter 3.0 Reclaimed Water Benefit-Cost Evaluation for Irrigation Uses found in the documenttitled "Economic Feasibility of Reclaimed Water Use by Non-Utility Water Use Permittees and Applicants",Final Report, June 2010, prepared by Hazen and Sawyer for the Southwest Florida Water ManagementDistrict, Brooksville, Florida.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet Instruc 7/21/2011
4. 4. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) Name of Next Available Water Source / Name 1 of Reclaimed Water Provider Floridan Aquifer Utility Name A. Amount of Water Needed and Available in million gallons (mg) - 2 Annual 74.00 84.00 10.00 3 B. Installation Costs (if not already installed or replaced) (a) (a) The replacement cost of existing items within five years of the end of their useful lives should be included in this list as if purchased new. The remaining or "salvage" value of these existing items may be entered as indicated below. Do not forget to consider the cost of the backup water supply in Column (4) should reclaimed water be temporarily unavailable. The user may enter all appropriate names of cost items in Column (2), Rows 4 5 to 12. 5 Pipes and Pumps \$1,000 \$2,000 6 Storage \$2,000 \$3,000 Filtration system (if needed for drip/microjet irrigation 7 system) \$3,000 \$4,000 8 Land Development not included in items above \$4,000 \$5,000 9 Item 1: \$0 \$0 10 Item 2: \$6,000 \$7,000 11 Item 3: \$7,000 \$8,000 12 Item 4: \$8,000 \$9,000 Salvage Value of Existing Items that are replaced and included above (enter value as a negative number). It is included as 1/5th of this value in 13 Total Annualized Installation Cost below. -\$2,000 \$0 14 Total Installation Cost \$29,000 \$38,000 15 Annual Interest Rate (i.e. 6%) 6.00% 6.00% 16 Useful Life of Items in Years 17 Pipes and Pumps 10 10 18 Storage 20 20 Filtration system (if needed for drip/microjet irrigation 19 system) 7 7 20 Land Development not included in items above 20 20 21 Item 1: 10 10 22 Item 2: 10 10 23 Item 3: 10 10 24 Item 4: 10 10 25 Total Annualized Installation Cost \$3,650 \$4,947 -\$1,297D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
5. 5. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) Total Annualized Installation Cost per 26 1,000 Gallons of Water \$0.05 \$0.06 -\$0.02D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
6. 6. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) 27 C. Annual O&M Costs 28 1.0 Payments to Reclaimed Water Utility and, if applicable, to NAWS Water Utility 29 Annual Fixed Payment \$0.00 \$144.00 30 Price per 1,000 gallons \$0.00 \$0.05 31 Total Utility Payment - Annual \$0 \$4,344 -\$4,344.00 32 2.0 Irrigation Pumping Energy Cost - Annual 33 Energy Source: Electricity Electricity 34 Total Dynamic Head in Feet: 300 30 35 Cost of energy source, Dollars per KWH or gallon (obtain 36 from appropriate web site): \$0.11 \$0.11 37 Energy cost to pump 1 Kgal: \$0.16 \$0.02 \$0.15 38 Total irrigation pumping energy cost - Annual \$12,069 \$1,370 \$10,699 39 3.0 Irrigation Maintenance Labor Cost - Annual 40 Labor Cost per Hour: \$10.00 \$10.00 41 Pumping System Labor Hours: 52 26 Irrigation System Labor Hours (include relevant issues such as fungus and algae management that involve repairing tubes and cleaning jets, maintaining 42 storage pond): 156 208 43 Salinity or pH management Labor Hours: 20 52 44 Total Maintenance Labor Cost - Annual \$2,280 \$2,860 -\$580 4.0 Annual Cost of Chemicals To Manage Irrigation Water or Soil, other than Nitrogen, specify chemical 45 name 46 Gypsum \$2,000 \$5,000 -\$3,000 47 Chemical Name: \$0 \$0 \$0 48 Chemical Name: \$0 \$0 \$0 49 5.0 Reporting or Record Keeping Costs - Annual \$500 \$1,500 -\$1,000 50 6.0 Other Annual Costs, specify below 51 Item A: \$0 \$0 \$0 52 Item B: \$0 \$0 \$0 53 Item C \$0 \$0 \$0 54 Total Annual O&M Cost \$16,849 \$15,074 \$1,775 Total Annual O&M Cost per 1,000 Gallons 55 of Irrigation Water \$0.23 \$0.18 \$0.02D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
7. 7. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) 56 D. Recurring O&M Costs, Other than Annual 57 Filter Media Replacement \$11,000 \$11,000 58 Item a replaced: \$0 \$0 59 Item b replaced: \$500 \$3,000 60 Item c replaced: \$400 \$2,000 61 Item d replaced: \$300 \$1,000 62 Replacement Frequency - No. of Years 63 Filter Media Replacement 5 3 64 Item a replaced: 65 Item b replaced: 3 5 66 Item c replaced: 3 5 67 Item d replaced: 3 5 Total Annualized Recurring O&M 68 Cost \$3,060 \$5,540 -\$2,479 Total Annualized Recurring O&M Cost per 69 1,000 Gallons of Irrigation Water \$0.04 \$0.07 -\$0.03D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
8. 8. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) 70 E. Nitrogen Fertilizer Cost Savings - Annual: 71 N Fertilizer Cost per Ton: \$552 \$552 Nitrogen concentration in ppm or mg/l of Irrigation Water (for reclaimed water, obtain from utility. For 72 NAWS, use available info or assume 0): 0 6 Percent of Nitrogen in water that is taken up by the 73 plant: 50% 50% Nitrogen Fertilizer Cost Savings Per 1,000 74 gallons of irrigation water: \$0.00 -\$0.015 \$0.015 Nitrogen Fertilizer Cost Savings due 75 to N in applied water - Annual \$0 -\$1,258 \$1,258 Total Annualized Cost, including the Cost Savings (Negative cost means cost 76 increase associated with reclaimed water) \$23,559 \$24,302 -\$743 Total Annualized Cost, including the Cost Savings Per 1,000 Gallons of Irrigation Water (Negative cost means cost 77 increase associated with reclaimed water) \$0.3184 \$0.2893 -\$0.01D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
9. 9. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) 78 F. Change in Value of Crop Production - Annual 79 Average crop production in number of units per acre when irrigating with reclaimed water (b): 525.00 Average crop production in number of units per acre when irrigating with the next available 80 water source: 500.00 81 Name of Unit: Boxes of Oranges 82 Change in Crop Production in Units per Acre Due to Reclaimed Water (b) 25.00 83 Market Value of Crop Less Cost of Harvesting and Selling Per Unit \$2.56 84 Number of Acres 100 85 Net Value of Change in Crop Production - Annual \$6,400 (b) This average crop production is an estimate and could be due to increased reliability of reclaimed water, differences in water quality, increased availability of water for frost/freeze protection and/or more water available 86 to meet crop water requirements when compared to next available water source (NAWS). 87 G. Change in Quality of Nursery Plant, Lawn and/or Landscape - Annual Change in Net Revenue (Market Value minus Variable Cost) - 88 Annual (c) \$5,000 (c) This change in net revenue is an estimate and can be positive or negative. This value would be positive if more water is available to meet the plants water requirements when compared to the next available water source (NAWS) which results in improved plant quality and, thus, increases landscape plant prices or revenue. For golf courses, improved quality of lawn and landscape during drought could increase golf course use and, thus, sales. The net revenue during a drought year would be the change in revenue minus the change in cost due to having reclaimed water during a drought year. This net revenue during a drought year would be multiplied by the proportion of years that a drought occurs. For example, a proportion of 0.10 means that drought restrictions occur once every ten years. Variable cost includes the costs that increase with increasing production or sales, and decrease with decreasing production or sales. The change in net revenue would be negative if the use of reclaimed water reduces plant quality which reduces revenue through lower plant sales or 89 number of golfers. 90 H. Value of Additional Water Available from Reclaimed Water Source Additional Water Available from Reclaimed Water Source in million gallons per year 91 compared to amount needed and available from NAWS- Annual: 10.00D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
10. 10. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) What is the cost per 1,000 gallons to obtain this fresh water, including any pumping costs? This is a lower bound estimate of the value of water to the operation. The actual value is likely much higher than this value. (This can be calculated by the irrigation water user using 92 another spreadsheet.) \$0.30 Value of Additional Water Available from Reclaimed Water 93 Source - Annual \$3,000D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
11. 11. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) 94 I. Value of the Additional Water "Freed Up" by the Reclaimed Water Use Percent of water needed and available from NAWS that will be "freed up" and used for other 95 purposes when reclaimed water used (% of water amount entered in Row 2, Column (3)): 20.00% Amount of fresh water that would be "freed up" due to the reclaimed water use and would be used for other reasonable / beneficial uses, including other irrigation needs, by the applicant 96 during a year in million gallons (on average)? 15 Cost per 1,000 gallons of fresh water, including any pumping costs. This is a lower bound estimate of the value of water to the operation. The actual value is likely much higher than 97 this value. (From H. above) \$0.30 98 Value of "freed up" NAWS water - Annual \$4,440 99 J. Value of Water Available During NAWS Water Shortage Restrictions 100 Number of years every ten years when NAWS Water Shortage Restriction in Place 1.0 Percent of total annual water use that is used during the months when NAWS Water 101 Shortage Restriction in Place 30.00% Cutback percent or percent of NAWS water use that is cut back during water restriction 102 period: 20.00% Annualized amount of water available during NAWS Water Shortage Restriction Due to 103 Reclaimed Water Use in million gallons per year 0.44 Cost per 1,000 gallons of fresh water, including any pumping costs. This is a lower bound estimate of the value of water to the operation. The actual value is likely much higher than 104 this value. (From H. above) \$0.30 Value of Water Available During NAWS Water Shortage 105 Restrictions \$133D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
12. 12. Reclaimed Water Benefit Cost Calculator for Irrigation Economic Comparison of Reclaimed Water Versus Next Available Water Source For Irrigation by Agricultural, Recreation and Aesthetic Water Users Reclaimed Water NAWS Minus Used Instead & RW/Other Next Available Other Sources if (Except A. which Row Water Source Applicable is RW/Other No. Benefit or Cost Item (NAWS) (RW/Other) minus NAWS) (1) (2) (3) (4) (5) Total Benefit Value of Reclaimed Water (Other Than Cost 106 Savings) - Annual \$18,973 Total Benefit Value of Reclaimed Water per 1,000 Gallons 107 (Other Than Cost Savings) \$0.23 Net Benefit of Reclaimed Water Use Relative to Next 108 Available Water Source - Annual (d) \$18,230 Net Benefit of Reclaimed Water Use Relative to Next Available Water Source Per 1,000 Gallons of Irrigation 109 Water (d) \$0.22 (d) Net Benefit is the sum of the benefits minus the sum of the costs of RW/Other. These are benefits and costs when compared to the Next Available Water Source (NAWS). A positive number means the estimated value of the total benefit of RW/Other is greater than the estimated value of the total cost of RW/Other. A negative number means the estimated value of the total benefit of RW/Other is less than the estimated value of 110 the total cost of RW/Other.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
13. 13. MODEL CALCULATIONS Annualized Installation Cost Next Available Water Source Other Than Reclaimed If Reclaimed Water is Used Water Instead \$136 \$272 \$174 \$262 \$537 \$717 \$349 \$436 \$0 \$0 \$815 \$951 \$951 \$1,087 \$1,087 \$1,223 Color Code means calculated numbers means entered by respondent means this is a drop down menu means parameters of equations (assumed values) means keep as blank cell Use the following sources to determine prevailing energy costs: Gasoline and Diesel Fuel: U.S. Government: http://tonto.eia.doe. AAA: http://www.fuelgaug Electricity: U.S. Government: http://www.neo.ne.goD:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
14. 14. http://www.eia.doe.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
15. 15. UF Study (1991) - Energy Use in Irrigation: http://www.p2pays.org/ref/12/11366.pdf Next Available Water Source Other Than Reclaimed Water Calculate energy cost to pump 1,000 gallons of water, depending upon fuel source per 1,000 gallons. Electricity \$0.16 1.428 Diesel N/A 0.114 Gasoline N/A 0.149 Unit Cost: \$0.16 Reclaimed Water Calculate energy cost to pump 1,000 gallons of water, depending upon fuel source per 1,000 gallons. Electricity \$0.02 0.1428 Diesel N/A 0.011 Gasoline N/A 0.015 Unit Cost: \$0.0163 Annualized Recurring O&M CostsD:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
16. 16. Next Available Water Source Other Than Reclaimed Water If Reclaimed Water is Used Instead \$2,611 \$4,115 \$0 \$0 \$187 \$712 \$150 \$475 \$112 \$237 For fertilizer prices go to:D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
17. 17. http://www.ers.usda.gov/Data/FertilizerUse/ Use Table 7 (Excel Spreadsheet) to determine the current price of fertilizer. Scroll down to the most recent year a Next Available Water Source Other Than Reclaimed Water If Reclaimed Water is Used Instead 0.00 0.05 Pounds of N per 1,0 50% Used by Manatee County Cooperative Extension in their presentation. Cost per pound of n \$0.60 \$0.60 46% nitrogen fertiliz 1.36 Pounds of N per acre 27154D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
18. 18. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
19. 19. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
20. 20. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
21. 21. \$0.22D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
22. 22. p://tonto.eia.doe.gov/oog/info/gdu/gasdiesel.aspp://www.fuelgaugereport.com/FLmetro.aspp://www.neo.ne.gov/statshtml/115.htm D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx RW Comparison Worksheet 7/21/2011
23. 23. p://www.eia.doe.gov/cneaf/electricity/epm/table5_6_a.html D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx RW Comparison Worksheet 7/21/2011
24. 24. lons. KWH required to pump 1,000 gallons gallons diesel fuel required to pump 1,000 gallons gallons gasoline required to pump 1,000 gallonslons. KWH required to pump 1,000 gallons gallons diesel fuel required to pump 1,000 gallons gallons gasoline required to pump 1,000 gallons D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx RW Comparison Worksheet 7/21/2011
25. 25. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
26. 26. most recent year and use the cost of "Urea 45-46% Nitrogen. unds of N per 1,000 gallons of irrigation waterst per pound of nitrogen (using cost of 1 ton of Urea 45-% nitrogen fertilizer) unds of N per acre with 1 inch of irrigation water Gallons per 1 acre inch of water D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx RW Comparison Worksheet 7/21/2011
27. 27. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
28. 28. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
29. 29. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
30. 30. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxRW Comparison Worksheet 7/21/2011
31. 31. Calculate Fertlizer CostCalculation to determine cost per pound of nitrogen in 1 ton of fertilizer \$0.60 =SUM(Cost of Fertilizer per Ton/0.46)/2000 \$0.60 0.6 where 0.46 is the proportion of N in the fertilizer.Calculation to determine weight of nitrogen per Kgal of Reclaimed Water 0.0500 =SUM(J60*1000*8.33)/1000000 0.0500 OK = 8.33 pounds per gallon times parts per million times 1,000 gallonsUse the following source (Table 7) to determine the current price of fertilizer. http://www.ers.usda.gov/Data/FertilizerUse/Table 7 is an Excel Spreadsheet. Scroll down to the most recent year and use the cost of "Urea 45-46% Nitrogen. http://www.ers.usda.gov/Data/FertilizerUse/The nitrogen added to the crop due to nitrate in the irrigation source water can be determined as follows:N concentration in RW, mg/l or ppm 6Inches of irrigation water applied 1 1 acre inch of water equals 27,154 gallons How much of this would be used by the plant? IFAS uses 50% for tomatoes. "Effect of Nitrogen Rate on Yield of Tomato Grown withN in pounds per acre 1.356 Seepage Irrigation and Reclaimed Water" (Phyllis Gilreath presentation)Pounds of N per 1,000 gallons of water applied 0.049937Source: "Water and Florida Citrus: Use, Regulation, Systems and Management", Edited by Brian Boman, University of Florida, IFAS, SP 281, July 2002, page 415 to 416. in groundwater can contribute significant amounts of nitrogen torwards a grapevines nutritional 3 Nitrate Nitrogen is NO --N requirement and should be considered when planning a fertilizer program. Labs report NO3--N concentrations in ppm (mg/l). This is converted to pounds of nitrogen per acre-foot by mulitplying by 2.7. From "The Use of Soil and Water Analysis, Bill Peacock, Tulare County Farm Advisor, University of California Cooperative Extension, Publ. # IG3-96. 0.22661114 2.712 0.050 0.1 0.01 0.2 0.02 0.3 0.03 0.4 0.04 0.5 0.05 0.6 0.06 0.7 0.07 0.8 0.08 0.9 0.09 1 0.1 0.55D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxN Fertilizer Cost 7/21/2011
32. 32. Pumping Energy Equations - Next Available Water Source Matches Matches EEE SWFWMDElecticity paper calcs Matches Jorge paperTotal Dynamic Head (TDH) in feet 300 300 245Gallons per Minute of flow (GPM) 1000 1000 25 Gal of diesel fuel used per hour of pumping, 1000 gpm, Gallons per hour ofPump efficiency 0.75 0.75 0.64 300 tdh kWh of electricity gasolineMotor power in hp (brake horsepower) 101.11 101.11 2.42 6.86 84.97 8.95 From EEE Paperhp-hours per gallon 1.18 1.18 1.127 0.96One hour or Hours it takes to pump1,000 gallons 1.00 0.02 6.00 1.13 1.34 11.0011kWh of electicity needed 85.69 1.43 12.88 12.88 0.88 1.18 0.889996Cost per kWh 0.119 0.1142 0.119 1.13 1.187085 14.66276Cost of electricity per 1,000 gallons \$10.20 \$0.16 \$1.53Motor efficiency assumed to be 0.88. From IFAS "Loading Effects on Irrigation Power Unit Performance, A.G. Smajstrla nad F.S. Zazueta, AE 242, June 2003. 1.43 From Energy Efficiency & Environmental News: Energy Use in Irrigation, Nov. 1991, Florida Energy Extension Service and Helen H. Whiffen. 1.00 Matches EEEDiesel fuel paperTotal Dynamic Head (TDH) in feet 300 300Gallons per Minute of flow (GPM) 1000 1000Pump efficiency 0.75 0.75Motor power in hp 101.11 101.11 From Hydraulic Machines and Equipment, page 18-7, Professional Publications Inc. (Jorge Atoche) and Energy Efficiency and Environmental News: Energy Use in Irrigation, IFAS.hp-hours per gallon 14.75 14.75 From IFAS Energy Requirement for Drip Irrigation of Tomatoes in North Florida and Loading Effects on Irrigation Power Unit Performance, BUL 289, July 2002.One hour or Hours it takes to pump1,000 gallons 1.00 0.02Gallons of diesel fuel needed 6.86 0.11 0.11 0.0678Cost per Gallon of diesel fuel 2.772 \$0.114 See sources in Pumping Costs SSCost of diesel fuel per 1,000 gallons \$19.00 \$0.01Motor efficiency assumed to be 0.88. Matches EEEGasoline paper AnswerTotal Dynamic Head (TDH) in feet 300 300Gallons per Minute of flow (GPM) 1000 1000Pump efficiency 0.75 0.75Motor power in hp 101.11 101.11hp-hours per gallon 11.30 11.30One hour or Hours it takes to pump1,000 gallons 1.00 0.02Gallons of gasoline fuel needed 8.95 0.15Cost per Gallon of gasoline fuel 2.626 0.1142Cost of gasoline fuel per 1,000 gallons \$23.50 \$0.02Motor efficiency assumed to be 0.88.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxNext Available Source Pump Ener 7/21/2011
33. 33. elen H. Whiffen.gy Use in Irrigation, IFAS. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx Next Available Source Pump Ener 7/21/2011
34. 34. Pumping Energy Equations - Reclaimed Water Matches Matches EEE SWFWMDElecticity paper calcs Matches Jorge paperTotal Dynamic Head (TDH) in feet 300 30 245Gallons per Minute of flow (GPM) 1000 200 25 Gal of diesel fuel used per hour of pumping, 1000 gpm, Gallons per hour ofPump efficiency 0.75 0.75 0.64 300 tdh kWh of electricity gasolineMotor power in hp (brake horsepower) 101.11 2.02 2.42 6.86 84.97 8.95 From EEE Paperhp-hours per gallon 1.18 1.18 1.127 0.96One hour or Hours it takes to pump1,000 gallons 1.00 0.08 6.00 1.13 1.34kWh of electicity needed 85.69 0.142814 12.88 12.88 0.88 1.18 16.66667Cost per kWh 0.119 0.1142 0.119 1.13 0.000253Cost of electricity per 1,000 gallons \$10.20 \$0.02 \$1.53 0.00357Motor efficiency assumed to be 0.88. 0.142814 Matches EEEDiesel fuel paperTotal Dynamic Head (TDH) in feet 300 30 6000Gallons per Minute of flow (GPM) 1000 200Pump efficiency 0.75 0.75Motor power in hp 101.11 2.02 From Hydraulic Machines and Equipment, page 18-7, Professional Publications Inc. (Jorge Atoche) and Energy Efficiency and Environmental News: Energy Use in Irrigation, IFAS.hp-hours per gallon 14.75 14.75 From IFAS Energy Requirement for Drip Irrigation of Tomatoes in North Florida and Loading Effects on Irrigation Power Unit Performance.One hour or Hours it takes to pump1,000 gallons 1.00 0.08Gallons of diesel fuel needed 6.86 0.011 0.57 0.0678Cost per Gallon of diesel fuel 2.772 0.1142 See sources in Pumping Costs SSCost of diesel fuel per 1,000 gallons \$19.00 \$0.00Motor efficiency assumed to be 0.88. Matches EEEGasoline paper AnswerTotal Dynamic Head (TDH) in feet 300 30Gallons per Minute of flow (GPM) 1000 200Pump efficiency 0.75 0.75Motor power in hp 101.11 2.02hp-hours per gallon 11.30 11.30One hour or Hours it takes to pump1,000 gallons 1.00 0.08Gallons of gasoline fuel needed 8.95 0.015Cost per Gallon of gasoline fuel 2.626 0.1142Cost of gasoline fuel per 1,000 gallons \$23.50 \$0.00Motor efficiency assumed to be 0.88.D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsxReclaimed Water Pump Energy 7/21/2011
35. 35. gy Use in Irrigation, IFAS. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx Reclaimed Water Pump Energy 7/21/2011
36. 36. Table 10.1—GROSS DOMESTIC PRODUCT AND DEFLATORS USED IN THE HISTORIC (Fiscal Year 2000 = 1.000) % Change in GDP (in GDP GDP (Chained) Year billions of (Chained) Price Index Total Total dollars) Price Index Total (GMJ) Defense Nondefense1940 96.8 0.0978 0.0870 0.0836 0.08781941 114.1 0.1014 0.0928 0.0994 0.08761942 144.3 0.1089 0.1028 0.1186 0.07571943 180.3 0.1163 0.1122 0.1268 0.06821944 209.2 0.1209 0.1061 0.1157 0.06891945 221.4 0.1239 0.1041 0.1071 0.08431946 222.7 0.1328 0.1071 0.1052 0.11401947 233.2 0.1466 0.1162 0.1137 0.11771948 256.7 0.1606 0.1273 0.1052 0.14021949 271.3 0.1660 0.1246 0.1062 0.13671950 273.2 0.1635 0.1287 0.1059 0.14341951 320.3 0.1723 0.1279 0.1113 0.15231952 348.7 0.1792 0.1280 0.1162 0.16331953 372.6 0.1825 0.1368 0.1269 0.16611954 377.1 0.1846 0.1409 0.1290 0.17841955 395.9 0.1862 0.1455 0.1335 0.17091956 427.0 0.1911 0.1526 0.1425 0.17101957 450.9 0.1983 0.1601 0.1497 0.17801958 460.0 0.2043 0.1687 0.1562 0.18851959 490.2 0.2075 0.1746 0.1647 0.18751960 518.9 0.2100 0.1750 0.1603 0.19451961 529.9 0.2130 0.1795 0.1645 0.19811962 567.8 0.2154 0.1803 0.1657 0.19711963 599.2 0.2181 0.1873 0.1726 0.20341964 641.4 0.2207 0.0119 0.1900 0.1739 0.20641965 687.5 0.2245 0.0172 0.1928 0.1735 0.21021966 755.8 0.2293 0.0214 0.1974 0.1800 0.21311967 810.2 0.2367 0.0323 0.2026 0.1863 0.21851968 868.5 0.2451 0.0355 0.2103 0.1950 0.22541969 948.3 0.2563 0.0457 0.2230 0.2062 0.23901970 1,012.9 0.2703 0.0546 0.2363 0.2178 0.25151971 1,080.3 0.2838 0.0499 0.2519 0.2314 0.26611972 1,176.9 0.2972 0.0472 0.2690 0.2551 0.27691973 1,311.0 0.3103 0.0441 0.2833 0.2752 0.28721974 1,438.9 0.3327 0.0722 0.3070 0.2967 0.31161975 1,560.8 0.3673 0.1040 0.3384 0.3293 0.34181976 1,738.8 0.3938 0.0721 0.3640 0.3547 0.3670TQ 459.6 0.4063 0.3752 0.3648 0.37851977 1,974.4 0.4233 0.0749 0.3934 0.3881 0.39511978 2,218.3 0.4518 0.0673 0.4194 0.4161 0.42041979 2,502.4 0.4882 0.0806 0.4552 0.4520 0.45611980 2,725.4 0.5310 0.0877 0.5029 0.5017 0.50331981 3,058.6 0.5830 0.0979 0.5562 0.5582 0.55561982 3,225.5 0.6229 0.0684 0.5958 0.6037 0.59321983 3,442.7 0.6504 0.0441 0.6245 0.6348 0.62101984 3,846.7 0.6744 0.0369 0.6555 0.6809 0.64671985 4,148.9 0.6963 0.0325 0.6781 0.7089 0.66761986 4,406.7 0.7125 0.0233 0.6947 0.7180 0.68611987 4,654.4 0.7311 0.0261 0.7143 0.7284 0.70901988 5,011.9 0.7541 0.0315 0.7359 0.7386 0.73491989 5,401.7 0.7834 0.0389 0.7631 0.7609 0.7639
37. 37. 1990 5,737.0 0.8125 0.0371 0.7882 0.7822 0.79021991 5,934.2 0.8430 0.0375 0.8226 0.8189 0.82361992 6,240.6 0.8642 0.0251 0.8508 0.8422 0.85311993 6,578.4 0.8838 0.0227 0.8725 0.8555 0.87701994 6,964.2 0.9028 0.0215 0.8902 0.8724 0.89461995 7,325.1 0.9218 0.0210 0.9120 0.8895 0.91711996 7,697.4 0.9395 0.0192 0.9328 0.9190 0.93561997 8,186.6 0.9559 0.0175 0.9508 0.9381 0.95341998 8,626.3 0.9675 0.0121 0.9603 0.9499 0.96231999 9,127.0 0.9802 0.0131 0.9748 0.9690 0.97592000 9,708.4 1.0000 0.0202 1.0000 1.0000 1.00002001 10,059.8 1.0236 0.0236 1.0234 1.0256 1.02292002 10,378.4 1.0432 0.0191 1.0425 1.0582 1.03932003 10,803.7 1.0643 0.0202 1.0703 1.1109 1.06132004 11,503.7 1.0920 0.0260 1.1014 1.1561 1.08862005 12,234.9 1.1270 0.0321 1.1417 1.2158 1.12452006 13,009.9 1.1652 0.0339 1.1809 1.2669 1.16162007 13,642.3 1.1971 0.0274 1.2081 1.3061 1.18562008 14,222.3 1.2256 0.0238 1.2584 1.3355 1.23982009 estimate 14,240.2 1.2435 0.0146 1.2785 1.3484 1.26482010 estimate 14,728.8 1.2560 1.2807 1.3650 1.26142011 estimate 15,499.8 1.2733 1.2975 1.3838 1.27972012 estimate 16,470.4 1.2945 1.3195 1.4068 1.30242013 estimate 17,497.8 1.3178 1.3443 1.4322 1.32802014 estimate 18,386.4 1.3415 1.3705 1.4579 1.3550Note: Constant dollar research and development outlays are based on the GDP (chained) price index.Source: http://www.whitehouse.gov/omb/budget/Historicals/ Average 18 years 0.0218 Average 20 years 0.0234 2007 to 2009 1.039 2008 to 2009 1.015 2005 to 2009 1.103 2006 to 2009 1.067
38. 38. ORS USED IN THE HISTORICAL TABLES: 1940–20140) Composite Outlay Deflators Undistributed Payments for Individuals Other Grants Net Interest Offsetting All Other Total Direct Grants Receipts 0.0931 0.0931 0.0931 0.0703 0.0978 0.0608 0.0847 0.0963 0.0963 0.0963 0.0640 0.1014 0.0583 0.0809 0.1053 0.1053 0.1053 0.0631 0.1089 0.0565 0.0661 0.1165 0.1165 0.1165 0.0675 0.1163 0.0554 0.0583 0.1251 0.1251 0.1251 0.0689 0.1209 0.0552 0.0562 0.1315 0.1316 0.1311 0.0691 0.1239 0.0569 0.0586 0.1387 0.1388 0.1385 0.0747 0.1328 0.0632 0.0684 0.1493 0.1493 0.1492 0.1022 0.1466 0.0834 0.0868 0.1631 0.1631 0.1630 0.1036 0.1606 0.1059 0.1117 0.1676 0.1676 0.1674 0.1110 0.1660 0.1033 0.1092 0.1656 0.1656 0.1650 0.1042 0.1635 0.1088 0.1162 0.1749 0.1750 0.1742 0.1198 0.1723 0.1045 0.1154 0.1816 0.1817 0.1810 0.1218 0.1792 0.1094 0.1222 0.1844 0.1845 0.1839 0.1291 0.1825 0.1156 0.1288 0.1868 0.1869 0.1866 0.1260 0.1846 0.1170 0.1360 0.1870 0.1870 0.1869 0.1292 0.1862 0.1204 0.1310 0.1894 0.1894 0.1893 0.1321 0.1911 0.1231 0.1317 0.1948 0.1949 0.1947 0.1434 0.1983 0.1277 0.1379 0.2006 0.2006 0.2005 0.1571 0.2043 0.1361 0.1491 0.2036 0.2037 0.2035 0.1667 0.2075 0.1423 0.1536 0.2073 0.2073 0.2071 0.1680 0.2100 0.1400 0.1570 0.2103 0.2104 0.2102 0.1656 0.2130 0.1464 0.1647 0.2123 0.2124 0.2122 0.1671 0.2154 0.1489 0.1665 0.2149 0.2149 0.2147 0.1727 0.2181 0.1533 0.1756 0.2178 0.2178 0.2176 0.1760 0.2207 0.1575 0.1832 0.2208 0.2208 0.2206 0.1807 0.2245 0.1656 0.1905 0.2248 0.2248 0.2246 0.1779 0.2293 0.1714 0.1956 0.2308 0.2308 0.2307 0.1820 0.2367 0.1773 0.2002 0.2380 0.2380 0.2379 0.1889 0.2451 0.1848 0.2061 0.2482 0.2482 0.2481 0.1999 0.2563 0.1974 0.2210 0.2602 0.2602 0.2601 0.2138 0.2703 0.2123 0.2343 0.2719 0.2719 0.2718 0.2293 0.2838 0.2284 0.2526 0.2823 0.2824 0.2822 0.2398 0.2972 0.2455 0.2692 0.2931 0.2931 0.2930 0.2473 0.3103 0.2587 0.2838 0.3167 0.3168 0.3166 0.2714 0.3327 0.2765 0.3014 0.3491 0.3492 0.3490 0.3011 0.3673 0.3034 0.3277 0.3722 0.3722 0.3720 0.3267 0.3938 0.3325 0.3597 0.3840 0.3840 0.3838 0.3404 0.4063 0.3454 0.3704 0.4002 0.4003 0.4000 0.3525 0.4233 0.3679 0.3945 0.4272 0.4273 0.4270 0.3758 0.4518 0.3898 0.4156 0.4625 0.4626 0.4623 0.4096 0.4882 0.4159 0.4476 0.5110 0.5110 0.5108 0.4563 0.5310 0.4584 0.4873 0.5604 0.5604 0.5602 0.5081 0.5830 0.5076 0.5371 0.5950 0.5950 0.5948 0.5514 0.6229 0.5364 0.5677 0.6223 0.6223 0.6221 0.5794 0.6504 0.5622 0.5910 0.6464 0.6464 0.6461 0.6088 0.6744 0.5753 0.6127 0.6681 0.6682 0.6677 0.6329 0.6963 0.5968 0.6312 0.6861 0.6861 0.6857 0.6557 0.7125 0.6107 0.6465 0.7071 0.7071 0.7068 0.6866 0.7311 0.6245 0.6667 0.7345 0.7345 0.7344 0.7107 0.7541 0.6429 0.6885 0.7670 0.7670 0.7670 0.7365 0.7834 0.6599 0.7031
39. 39. 0.7996 0.7996 0.7999 0.7693 0.8125 0.6845 0.7194 0.8333 0.8333 0.8333 0.7994 0.8430 0.7285 0.7599 0.8574 0.8575 0.8572 0.8181 0.8642 0.7459 0.7972 0.8787 0.8788 0.8783 0.8418 0.8838 0.7863 0.8407 0.8967 0.8968 0.8962 0.8644 0.9028 0.8199 0.8604 0.9168 0.9169 0.9165 0.8922 0.9218 0.8458 0.8950 0.9355 0.9355 0.9352 0.9151 0.9395 0.8851 0.9244 0.9537 0.9537 0.9533 0.9318 0.9559 0.9095 0.9402 0.9629 0.9630 0.9628 0.9449 0.9675 0.9329 0.9481 0.9763 0.9763 0.9762 0.9649 0.9802 0.9591 0.9683 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0223 1.0223 1.0223 1.0305 1.0236 1.0265 1.0223 1.0366 1.0366 1.0368 1.0539 1.0432 1.0721 1.0533 1.0568 1.0568 1.0570 1.0917 1.0643 1.1158 1.0847 1.0817 1.0817 1.0819 1.1352 1.0920 1.1790 1.1296 1.1133 1.1131 1.1141 1.2063 1.1270 1.2374 1.1806 1.1479 1.1477 1.1491 1.2736 1.1652 1.2872 1.2214 1.1734 1.1730 1.1751 1.3360 1.1971 1.3359 1.2350 1.2298 1.2294 1.2316 1.4197 1.2256 1.3677 1.2746 1.2187 1.2183 1.2204 1.4439 1.2435 1.3877 1.3568 1.2358 1.2353 1.2379 1.4898 1.2560 1.4016 1.3241 1.2569 1.2564 1.2594 1.5410 1.2733 1.4209 1.3424 1.2820 1.2815 1.2844 1.5980 1.2945 1.4445 1.3647 1.3088 1.3084 1.3105 1.6597 1.3178 1.4705 1.3892 1.3362 1.3359 1.3378 1.7245 1.3415 1.4970 1.4143.
40. 40. Addendum: Direct CapitalTotal Defense Nondefense 0.1897 0.1623 0.2044 0.1830 0.1725 0.2149 0.1799 0.1772 0.2303 0.1736 0.1731 0.2278 0.1677 0.1675 0.2285 0.1559 0.1557 0.2286 0.1604 0.1595 0.2190 0.1839 0.1796 0.2128 0.2083 0.2009 0.2390 0.2222 0.2117 0.2501 0.2183 0.2107 0.2311 0.2306 0.2278 0.2429 0.2397 0.2380 0.2574 0.2426 0.2407 0.2698 0.2400 0.2383 0.2660 0.2473 0.2465 0.2603 0.2614 0.2611 0.2674 0.2783 0.2780 0.2822 0.2881 0.2878 0.2924 0.2928 0.2926 0.2956 0.2951 0.2945 0.3006 0.2968 0.2960 0.3038 0.2999 0.2988 0.3086 0.3068 0.3056 0.3158 0.3081 0.3050 0.3282 0.3096 0.3056 0.3299 0.3112 0.3082 0.3278 0.3165 0.3134 0.3402 0.3244 0.3212 0.3553 0.3368 0.3339 0.3699 0.3560 0.3522 0.3962 0.3818 0.3759 0.4284 0.4216 0.4166 0.4503 0.4565 0.4541 0.4681 0.4789 0.4747 0.4985 0.5207 0.5099 0.5669 0.5586 0.5464 0.6087 0.5873 0.5773 0.6222 0.6093 0.6013 0.6412 0.6492 0.6449 0.6646 0.6902 0.6867 0.7034 0.7391 0.7326 0.7663 0.7981 0.7911 0.8308 0.8614 0.8569 0.8874 0.9033 0.9038 0.8999 0.9344 0.9396 0.9007 0.9380 0.9427 0.9089 0.9199 0.9204 0.9164 0.9027 0.8992 0.9276 0.8895 0.8806 0.9447 0.8977 0.8875 0.9677
41. 41. 0.9121 0.9004 0.98670.9371 0.9249 1.00670.9484 0.9362 1.00130.9669 0.9574 1.00660.9880 0.9809 1.01681.0078 1.0003 1.03141.0186 1.0141 1.03091.0022 0.9982 1.01310.9913 0.9893 0.99830.9950 0.9961 0.99221.0000 1.0000 1.00000.9982 0.9952 1.00500.9879 0.9844 0.99600.9892 0.9884 0.99110.9972 0.9979 0.99491.0186 1.0196 1.01531.0354 1.0375 1.02831.0494 1.0534 1.03551.0745 1.0785 1.06041.0894 1.0942 1.07571.1005 1.1052 1.08641.1163 1.1204 1.10141.1355 1.1391 1.11971.1560 1.1596 1.13991.1768 1.1804 1.1604
42. 42. Cost per 1,000 Gallons to pump groundwater 2009 2008 0.45 \$0.46 2005 0.23 \$0.25 2006 0.31 \$0.33Average 2009 \$0.35 \$0.20 \$0.10 \$0.36 \$0.36