1. Reclaimed Water Benefit-Cost Calculator For Irrigation - Worksheet
Instructions
1. Is reclaimed water service available to your
operation? If Yes, continue to Question 2. If YES, continue to
No, Stop Here. Question 2. NO, Stop Here
2. Is reclaimed water the only water source
available to your operation? If Yes, Stop Here. NO, continue to Question 3 and
If No, continue to Question 3 and complete the complete the RW Comparison
RW Comparison Worksheet. YES, Stop Here Worksheet.
3. What other water source(s) are available to
your operation for irrigation? (circle all that
apply) Floridan aquifer
Intermediate aquifer
Surface water source
Other, please specify:
4. Of these water sources, which is the water source that would be
replaced, in whole or in part, by reclaimed water? For the purposes of
the 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, the
nutrient 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 information
should be used to assist in estimating the benefits and costs of using
reclaimed water for irrigation.
Enter the information in the Spreadsheet titled "RW Comparison Worksheet".
The other spreadsheets calculate values referred to by the "RW Comparison
Worksheet" 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 cell
Use 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.html
For 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 most
recent year and use the cost of "Urea 45-46% Nitrogen.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet Instruc 7/21/2011

2. Prepared by: Hazen and Sawyer, July 8, 2010
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet Instruc 7/21/2011

3. MODEL DISCLAIMER
The Reclaimed Water Benefit-Cost Calculator for Irrigation is to be used to provide guidance as to the
economic feasibility of using reclaimed water for a specific purpose. The values that the user will input
into the model are estimates and the model results should not be the only factor in determining
economic feasibility. Instead, the model results should be viewed in the proper context of all other
information 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 purely
illustrative for the purposes of this study presentation only. Readers and users are advised to develop
proper estimates of costs and benefits that would be appropriate for their individual site(s). Except
where explicitly directed (e.g. , to obtain the proper values of nitrogen fertilizer and fuel costs from
specific 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, please
read Chapter 3.0 Reclaimed Water Benefit-Cost Evaluation for Irrigation Uses found in the document
titled "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 Management
District, Brooksville, Florida.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet Instruc 7/21/2011

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 -$1,297
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 -$0.02
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 $0.02
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 -$0.03
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 -$0.01
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 plant's 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: 10.00
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 $3,000
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 $133
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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.xlsx
RW Comparison Worksheet 7/21/2011

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.go
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

14. http://www.eia.doe.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 Costs
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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.xlsx
RW Comparison Worksheet 7/21/2011

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
27154
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

18. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

19. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

20. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

21. $0.22
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

22. p://tonto.eia.doe.gov/oog/info/gdu/gasdiesel.asp
p://www.fuelgaugereport.com/FLmetro.asp
p://www.neo.ne.gov/statshtml/115.htm
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

23. p://www.eia.doe.gov/cneaf/electricity/epm/table5_6_a.html
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

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 gallons
lons.
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. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

26. most recent year and use the cost of "Urea 45-46% Nitrogen.
unds of N per 1,000 gallons of irrigation water
st 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. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

28. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

29. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

30. D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
RW Comparison Worksheet 7/21/2011

31. Calculate Fertlizer Cost
Calculation 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 gallons
Use 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 6
Inches 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 with
N in pounds per acre 1.356 Seepage Irrigation and Reclaimed Water" (Phyllis Gilreath presentation)
Pounds of N per 1,000 gallons of water applied 0.049937
Source: "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 grapevine's 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
0.55
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
N Fertilizer Cost 7/21/2011

32. Pumping Energy Equations - Next Available Water Source
Matches
Matches EEE SWFWMD
Electicity paper calcs Matches Jorge paper
Total Dynamic Head (TDH) in feet 300 300 245
Gallons per Minute of flow (GPM) 1000 1000 25
Gal of diesel fuel
used per hour of
pumping, 1000 gpm, Gallons per hour of
Pump efficiency 0.75 0.75 0.64 300 tdh kWh of electricity gasoline
Motor power in hp (brake horsepower) 101.11 101.11 2.42 6.86 84.97 8.95 From EEE Paper
hp-hours per gallon 1.18 1.18 1.127 0.96
One hour or Hours it takes to pump
1,000 gallons 1.00 0.02 6.00 1.13 1.34 11.0011
kWh of electicity needed 85.69 1.43 12.88 12.88 0.88 1.18 0.889996
Cost per kWh 0.119 0.1142 0.119 1.13 1.187085 14.66276
Cost of electricity per 1,000 gallons $10.20 $0.16 $1.53
Motor 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 EEE
Diesel fuel paper
Total Dynamic Head (TDH) in feet 300 300
Gallons per Minute of flow (GPM) 1000 1000
Pump efficiency 0.75 0.75
Motor 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 pump
1,000 gallons 1.00 0.02
Gallons of diesel fuel needed 6.86 0.11 0.11 0.0678
Cost per Gallon of diesel fuel 2.772 $0.114 See sources in Pumping Costs SS
Cost of diesel fuel per 1,000 gallons $19.00 $0.01
Motor efficiency assumed to be 0.88.
Matches EEE
Gasoline paper Answer
Total Dynamic Head (TDH) in feet 300 300
Gallons per Minute of flow (GPM) 1000 1000
Pump efficiency 0.75 0.75
Motor power in hp 101.11 101.11
hp-hours per gallon 11.30 11.30
One hour or Hours it takes to pump
1,000 gallons 1.00 0.02
Gallons of gasoline fuel needed 8.95 0.15
Cost per Gallon of gasoline fuel 2.626 0.1142
Cost of gasoline fuel per 1,000 gallons $23.50 $0.02
Motor efficiency assumed to be 0.88.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
Next Available Source Pump Ener 7/21/2011

33. elen H. Whiffen.
gy Use in Irrigation, IFAS.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
Next Available Source Pump Ener 7/21/2011

34. Pumping Energy Equations - Reclaimed Water
Matches
Matches EEE SWFWMD
Electicity paper calcs Matches Jorge paper
Total Dynamic Head (TDH) in feet 300 30 245
Gallons per Minute of flow (GPM) 1000 200 25
Gal of diesel fuel
used per hour of
pumping, 1000 gpm, Gallons per hour of
Pump efficiency 0.75 0.75 0.64 300 tdh kWh of electricity gasoline
Motor power in hp (brake horsepower) 101.11 2.02 2.42 6.86 84.97 8.95 From EEE Paper
hp-hours per gallon 1.18 1.18 1.127 0.96
One hour or Hours it takes to pump
1,000 gallons 1.00 0.08 6.00 1.13 1.34
kWh of electicity needed 85.69 0.142814 12.88 12.88 0.88 1.18 16.66667
Cost per kWh 0.119 0.1142 0.119 1.13 0.000253
Cost of electricity per 1,000 gallons $10.20 $0.02 $1.53 0.00357
Motor efficiency assumed to be 0.88. 0.142814
Matches EEE
Diesel fuel paper
Total Dynamic Head (TDH) in feet 300 30 6000
Gallons per Minute of flow (GPM) 1000 200
Pump efficiency 0.75 0.75
Motor 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 pump
1,000 gallons 1.00 0.08
Gallons of diesel fuel needed 6.86 0.011 0.57 0.0678
Cost per Gallon of diesel fuel 2.772 0.1142 See sources in Pumping Costs SS
Cost of diesel fuel per 1,000 gallons $19.00 $0.00
Motor efficiency assumed to be 0.88.
Matches EEE
Gasoline paper Answer
Total Dynamic Head (TDH) in feet 300 30
Gallons per Minute of flow (GPM) 1000 200
Pump efficiency 0.75 0.75
Motor power in hp 101.11 2.02
hp-hours per gallon 11.30 11.30
One hour or Hours it takes to pump
1,000 gallons 1.00 0.08
Gallons of gasoline fuel needed 8.95 0.015
Cost per Gallon of gasoline fuel 2.626 0.1142
Cost of gasoline fuel per 1,000 gallons $23.50 $0.00
Motor efficiency assumed to be 0.88.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
Reclaimed Water Pump Energy 7/21/2011

35. gy Use in Irrigation, IFAS.
D:ConFacconversion8656488reclaimedwaterbccalculatorirrigation1522.xlsx
Reclaimed Water Pump Energy 7/21/2011

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 Nondefense
1940 96.8 0.0978 0.0870 0.0836 0.0878
1941 114.1 0.1014 0.0928 0.0994 0.0876
1942 144.3 0.1089 0.1028 0.1186 0.0757
1943 180.3 0.1163 0.1122 0.1268 0.0682
1944 209.2 0.1209 0.1061 0.1157 0.0689
1945 221.4 0.1239 0.1041 0.1071 0.0843
1946 222.7 0.1328 0.1071 0.1052 0.1140
1947 233.2 0.1466 0.1162 0.1137 0.1177
1948 256.7 0.1606 0.1273 0.1052 0.1402
1949 271.3 0.1660 0.1246 0.1062 0.1367
1950 273.2 0.1635 0.1287 0.1059 0.1434
1951 320.3 0.1723 0.1279 0.1113 0.1523
1952 348.7 0.1792 0.1280 0.1162 0.1633
1953 372.6 0.1825 0.1368 0.1269 0.1661
1954 377.1 0.1846 0.1409 0.1290 0.1784
1955 395.9 0.1862 0.1455 0.1335 0.1709
1956 427.0 0.1911 0.1526 0.1425 0.1710
1957 450.9 0.1983 0.1601 0.1497 0.1780
1958 460.0 0.2043 0.1687 0.1562 0.1885
1959 490.2 0.2075 0.1746 0.1647 0.1875
1960 518.9 0.2100 0.1750 0.1603 0.1945
1961 529.9 0.2130 0.1795 0.1645 0.1981
1962 567.8 0.2154 0.1803 0.1657 0.1971
1963 599.2 0.2181 0.1873 0.1726 0.2034
1964 641.4 0.2207 0.0119 0.1900 0.1739 0.2064
1965 687.5 0.2245 0.0172 0.1928 0.1735 0.2102
1966 755.8 0.2293 0.0214 0.1974 0.1800 0.2131
1967 810.2 0.2367 0.0323 0.2026 0.1863 0.2185
1968 868.5 0.2451 0.0355 0.2103 0.1950 0.2254
1969 948.3 0.2563 0.0457 0.2230 0.2062 0.2390
1970 1,012.9 0.2703 0.0546 0.2363 0.2178 0.2515
1971 1,080.3 0.2838 0.0499 0.2519 0.2314 0.2661
1972 1,176.9 0.2972 0.0472 0.2690 0.2551 0.2769
1973 1,311.0 0.3103 0.0441 0.2833 0.2752 0.2872
1974 1,438.9 0.3327 0.0722 0.3070 0.2967 0.3116
1975 1,560.8 0.3673 0.1040 0.3384 0.3293 0.3418
1976 1,738.8 0.3938 0.0721 0.3640 0.3547 0.3670
TQ 459.6 0.4063 0.3752 0.3648 0.3785
1977 1,974.4 0.4233 0.0749 0.3934 0.3881 0.3951
1978 2,218.3 0.4518 0.0673 0.4194 0.4161 0.4204
1979 2,502.4 0.4882 0.0806 0.4552 0.4520 0.4561
1980 2,725.4 0.5310 0.0877 0.5029 0.5017 0.5033
1981 3,058.6 0.5830 0.0979 0.5562 0.5582 0.5556
1982 3,225.5 0.6229 0.0684 0.5958 0.6037 0.5932
1983 3,442.7 0.6504 0.0441 0.6245 0.6348 0.6210
1984 3,846.7 0.6744 0.0369 0.6555 0.6809 0.6467
1985 4,148.9 0.6963 0.0325 0.6781 0.7089 0.6676
1986 4,406.7 0.7125 0.0233 0.6947 0.7180 0.6861
1987 4,654.4 0.7311 0.0261 0.7143 0.7284 0.7090
1988 5,011.9 0.7541 0.0315 0.7359 0.7386 0.7349
1989 5,401.7 0.7834 0.0389 0.7631 0.7609 0.7639

37. 1990 5,737.0 0.8125 0.0371 0.7882 0.7822 0.7902
1991 5,934.2 0.8430 0.0375 0.8226 0.8189 0.8236
1992 6,240.6 0.8642 0.0251 0.8508 0.8422 0.8531
1993 6,578.4 0.8838 0.0227 0.8725 0.8555 0.8770
1994 6,964.2 0.9028 0.0215 0.8902 0.8724 0.8946
1995 7,325.1 0.9218 0.0210 0.9120 0.8895 0.9171
1996 7,697.4 0.9395 0.0192 0.9328 0.9190 0.9356
1997 8,186.6 0.9559 0.0175 0.9508 0.9381 0.9534
1998 8,626.3 0.9675 0.0121 0.9603 0.9499 0.9623
1999 9,127.0 0.9802 0.0131 0.9748 0.9690 0.9759
2000 9,708.4 1.0000 0.0202 1.0000 1.0000 1.0000
2001 10,059.8 1.0236 0.0236 1.0234 1.0256 1.0229
2002 10,378.4 1.0432 0.0191 1.0425 1.0582 1.0393
2003 10,803.7 1.0643 0.0202 1.0703 1.1109 1.0613
2004 11,503.7 1.0920 0.0260 1.1014 1.1561 1.0886
2005 12,234.9 1.1270 0.0321 1.1417 1.2158 1.1245
2006 13,009.9 1.1652 0.0339 1.1809 1.2669 1.1616
2007 13,642.3 1.1971 0.0274 1.2081 1.3061 1.1856
2008 14,222.3 1.2256 0.0238 1.2584 1.3355 1.2398
2009 estimate 14,240.2 1.2435 0.0146 1.2785 1.3484 1.2648
2010 estimate 14,728.8 1.2560 1.2807 1.3650 1.2614
2011 estimate 15,499.8 1.2733 1.2975 1.3838 1.2797
2012 estimate 16,470.4 1.2945 1.3195 1.4068 1.3024
2013 estimate 17,497.8 1.3178 1.3443 1.4322 1.3280
2014 estimate 18,386.4 1.3415 1.3705 1.4579 1.3550
Note: 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. ORS USED IN THE HISTORICAL TABLES: 1940–2014
0)
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. 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. Addendum: Direct Capital
Total 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. 0.9121 0.9004 0.9867
0.9371 0.9249 1.0067
0.9484 0.9362 1.0013
0.9669 0.9574 1.0066
0.9880 0.9809 1.0168
1.0078 1.0003 1.0314
1.0186 1.0141 1.0309
1.0022 0.9982 1.0131
0.9913 0.9893 0.9983
0.9950 0.9961 0.9922
1.0000 1.0000 1.0000
0.9982 0.9952 1.0050
0.9879 0.9844 0.9960
0.9892 0.9884 0.9911
0.9972 0.9979 0.9949
1.0186 1.0196 1.0153
1.0354 1.0375 1.0283
1.0494 1.0534 1.0355
1.0745 1.0785 1.0604
1.0894 1.0942 1.0757
1.1005 1.1052 1.0864
1.1163 1.1204 1.1014
1.1355 1.1391 1.1197
1.1560 1.1596 1.1399
1.1768 1.1804 1.1604

42. Cost per 1,000 Gallons to pump groundwater
2009
2008 0.45 $0.46
2005 0.23 $0.25
2006 0.31 $0.33
Average 2009 $0.35
$0.20
$0.10
$0.36
$0.36