ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Attachment 4

Capital Costs AssessmentsALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 2 of 13 Cost Multipliers

Each cost estimate in this Attachment will have two cost multipliers:

 Recommended Minimum Contingency (30%)

 Corporate Overheads and Work In Progress Cost (30%) The current stage of development of the various conceptual designs provides a sound basis for estimating the associated overall design, procuremen t, and construction costs. However, none of this captures the full scope of work, as would be possible if the final detailed design were completed, all associated bill of materials developed, and vendor quot es obtained for all materials. For this reason, a Recommended Mini mum Contingency of 30% was added to all cost estimates 1

. Additionally, a typical cost multiplier of 30% wa s assumed in order to capture both corporate overheads and the cost of carryi ng the associated funding (i.e., a Corporate Overheads and Work In Progress Cost).

1 References: Entergy Nuclear Operations, Inc. Procedure EN-DC-11 4. Project Management. Rev. 10. June 12, 2009. United States Department of Energy. Cost Estimating Guide. Publication No. DOE G 430.1-1. March 28, 1997.ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 3 of 13 The following summarizes the construction cost estimate in 2009 dollars for the replacement of existing traveling water screens with 2.0 mm fi ne mesh Ristroph Screens with fish return systems: 

### 2.0 mm Fine Mesh Ristroph Screens Work Scope Estimated Cost Design Engineering Costs Unit 2 $120,000 Unit 3 $120,000 Subtotal $240,000
Procurement Costs Fine Mesh Ristroph Screens (48) Unit 2 (24 Screens) $10,368,000 Unit 3 (24 Screens) $10,368,000 Fish Return Sluices Unit 2 $212,000 Unit 3 $212,000 Stop Logs Unit 2 (24 sets) $4,320,000 Unit 3 (24 sets) $4,320,000 Subtotal $29,800,000 Tasks for Fine Mesh Ristroph Screen Implementation Construct Expanded Intake Structures 1 Unit 2 $97,084,000 Unit 3 $93,106,000 Installation Unit 2 $180,000 Unit 3 $180,000 Field Service Testi ng and Commissioning Unit 2 $168,000 Unit 3 $168,000 Subtotal $190,886,000 Total Work Scope Subtotal $220,926,000 Corporate Overheads and Work In Progress Cost (30%) $66,278,000 Recommended Minimum Contingency (30%) $86,162,000 

### Recommended Engineering and Construction Budget $373,366,000

1 - Includes demolition of existing traveling water screens, bar racks, and fish return systemsALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 4 of 13 The following summarizes the construction cost estimate in 2009 dollars for the replacement of existing traveling water screens with 2.0 mm fine mesh dual flow traveling water screens with fish return systems:


### 2.0 mm Fine Mesh Dual Flow Screens Work Scope Estimated Cost Design Engineering Costs Unit 2 $121,000
Unit 3 $121,000
Subtotal $242,000
Procurement Costs Fine Mesh Dual Flow Screens (36) Unit 2 (18 Screens) $9,342,000 Unit 3 (18 Screens) $9,342,000 Fish Return Sluices Unit 2 $212,000 Unit 3 $212,000 Stop Logs (36 sets) Unit 2 (18 sets) $3,240,000 Unit 3 (18 sets) $3,240,000 Subtotal $25,588,000
Tasks for Fine Mesh Dual Fl ow Screen Implementation Construct Expanded Intake Structures 1 Unit 2 $92,454,000 Unit 3 $88,443,000 Installation Unit 2 $135,000 Unit 3 $135,000 Field Service Testi ng and Commissioning Unit 2 $126,000 Unit 3 $126,000 Subtotal $181,419,000 Total Work Scope Subtotal $207,249,000 Corporate Overheads and Work In Progress Cost (30%) $62,175,000 Recommended Minimum Contingency (30%) $80,828,000 

### Recommended Engineering and Construction Budget $350,252,000
1 - Includes demolition of existing traveling water screens, bar racks, and fish return systemsALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 5 of 13 The following summarizes the construction cost es timate in 2009 dollars fo r the installation of 2.0 mm fine mesh copper-nickel cylindrica l wedgewire screens at Unit and Unit 3: 

### Fine Mesh Copper-Nickel Cylindrical Wedgewire Screens - 2.0 mm (0.078") slots with Through-Slot Velocity of 0.5 fps Work Scope Estimated Cost Design Engineering Costs Unit 2 $131,000 Unit 3 $131,000 Subtotal $262,000
Procurement Costs Wedgewire Screens (72" Dia. X 257" Long) Unit 2 (36 Screens) $4,986,000 Unit 3 (36 Screens) $4,986,000 Isolation Valves (72" Butterfly Valves) Unit 2 (12 Valves) $1,355,000 Unit 3 (12 Valves) $1,355,000 Stop Logs Unit 2 (2) $540,000 Unit 3 (2) $540,000 Automated Intake Switching System 1 Unit 2 $1,800,000 Unit 3 $1,800,000 Airburst Systems 2 Unit 2 (3) $240,000 Unit 3 (3) $240,000 Circulating Water Pump Extension Kits Unit 2 (6) $270,000 Unit 3 (6) $270,000 Field Service Unit 2 $37,000 Unit 3 $37,000 Subtotal $18,456,000ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 6 of 13 Tasks for Fine Mesh Wedgewire Screen Implementation Construct Piping Systems and Tie-In to Existing CWISs Unit 2 $2,448,000 Unit 3 $2,448,000 Installation Unit 2 $270,000 Unit 3 $270,000 Field Service Testing and Commissioning Unit 2 $252,000 Unit 3 $252,000 Subtotal $5,940,000 Total Work Scope Subtotal $24,658,000 Corporate Overheads and Work In Progress Cost (30%) $7,398,000 Recommended Minimum Contingency (30%) $9,617,000 

### Recommended Engineering and Construction Budget $41,673,000

1 - System Includes Differential Pressure Sensors and Hydraulic Stop Log Opening System 2 - System Includes Piping, Air Compre ssor, Receiver, and Control SystemALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 7 of 13 The following summarizes the construction cost es timate in 2009 dollars fo r the installation of 9.0 mm coarse mesh copper-nickel cylindrical wedgewire screens at Unit and Unit 3: 

### Coarse Mesh Copper-Nickel Cylindr ical Wedgewire Screens - 9.0 mm (~0.375") slots with Through-Slot Velocity of 0.5 fps Work Scope Estimated Cost Design Engineering Costs Unit 2 $128,000 Unit 3 $128,000 Subtotal $256,000
Procurement Costs Wedgewire Screens for Unit 2 (72" Dia. X 257" Long) Unit 2 (24 Screens) $3,240,000 Unit 3 (24 Screens) $3,240,000 Isolation Valves (72" Butterfly Valves) Unit 2 (12 Valves) $1,355,000 Unit 3 (12 Valves) $1,355,000 Stop Logs Unit 2 (2) $540,000 Unit 3 (2) $540,000 Automated Intake Switching System 1 Unit 2 $1,800,000 Unit 3 $1,800,000 Airburst Systems 2 Unit 2 (3) $240,000 Unit 3 (3) $240,000 Circulating Water Pump Extension Kits Unit 2 (6) $270,000 Unit 3 (6) $270,000 Field Service Unit 2 $37,000 Unit 3 $37,000 Subtotal $14,964,000ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 8 of 13 Tasks for Coarse Mesh Wedgewire Screen Implementation Construct Piping Systems and Tie-In to Existing CWISs Unit 2 $2,855,000 Unit 3 $2,855,000 Installation Unit 2 $180,000 Unit 3 $180,000 Field Service Testing and Commissioning Unit 2 $168,000 Unit 3 $168,000 Subtotal $6,406,000 Total Work Scope Subtotal $21,626,000 Corporate Overheads and Work In Progress Cost (30%) $6,488,000 Recommended Minimum Contingency (30%) $8,435,000 

### Recommended Engineering and Construction Budget $36,549,000

1 - System Includes Differential Pressure Sensors and Hydraulic Stop Log Opening System 2 - System Includes Piping, Air Compre ssor, Receiver, and Control SystemALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 9 of 13 The following summarizes the construction cost es timate in 2009 dollars fo r the installation of 2.0 mm fine mesh copper-nickel cylindrica l wedgewire screens at Unit and Unit 3:



### Fine Mesh Copper-Nickel Cylindrical Wedgewire Screens - 2.0 mm (0.078") slots with Through-Slot Velocity of 0.25 fps Work Scope Estimated Cost Design Engineering Costs Unit 2 $164,000 Unit 3 $164,000 Subtotal $328,000
Procurement Costs Wedgewire Screens (72" Dia. X 257" Long) Unit 2 (72 Screens) $9,972,000 Unit 3 (72 Screens) $9,972,000 Isolation Valves (72" Butterfly Valves) Unit 2 (12 Valves) $1,355,000 Unit 3 (12 Valves) $1,355,000 Stop Logs Unit 2 (2) $540,000 Unit 3 (2) $540,000 Automated Intake Switching System 1 Unit 2 $1,800,000 Unit 3 $1,800,000 Airburst Systems 2 Unit 2 (6) $480,000 Unit 3 (6) $480,000 Circulating Water Pump Extension Kits Unit 2 (6) $270,000 Unit 3 (6) $270,000 Field Service Unit 2 $37,000 Unit 3 $37,000 Subtotal $28,908,000ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 10 of 13 Tasks for Fine Mesh Wedgewire Screen Implementation Construct Piping Systems and Tie-In to Existing CWISs Unit 2 $3,060,000 Unit 3 $3,060,000 Installation Unit 2 $540,000 Unit 3 $540,000 Field Service Testing and Commissioning Unit 2 $504,000 Unit 3 $504,000 Subtotal $8,208,000 Total Work Scope Subtotal $37,444,000 Corporate Overheads and Work In Progress Cost (30%) $11,234,000 Recommended Minimum Contingency (30%) $14,604,000 

### Recommended Engineering and Construction Budget $63,282,000

1 - System Includes Differential Pressure Sensors and Hydraulic Stop Log Opening System 2 - System Includes Piping, Air Compre ssor, Receiver, and Control SystemALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 11 of 13 The following summarizes the construction cost es timate in 2009 dollars fo r the installation of 9.0 mm coarse mesh copper-nickel cylindrical wedgewire screens at Unit and Unit 3: 

### Coarse Mesh Copper-Nickel Cylindr ical Wedgewire Screens - 9.0 mm (~0.375") slots with Through-Slot Velocity of 0.25 fps Work Scope Estimated Cost Design Engineering Costs Unit 2 $160,000 Unit 3 $160,000 Subtotal $320,000
Procurement Costs Wedgewire Screens for Unit 2 (72" Dia. X 257" Long) Unit 2 (48 Screens) $6,480,000 Unit 3 (48 Screens) $6,480,000 Isolation Valves (72" Butterfly Valves) Unit 2 (12 Valves) $1,355,000 Unit 3 (12 Valves) $1,355,000 Stop Logs Unit 2 (2) $540,000 Unit 3 (2) $540,000 Automated Intake Switching System 1 Unit 2 $1,800,000 Unit 3 $1,800,000 Airburst Systems 2 Unit 2 (6) $480,000 Unit 3 (6) $480,000 Circulating Water Pump Extension Kits Unit 2 (6) $270,000 Unit 3 (6) $270,000 Field Service Unit 2 $37,000 Unit 3 $37,000 Subtotal $21,924,000ALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 12 of 13 Tasks for Coarse Mesh Wedgewire Screen Implementation Construct Piping Systems and Tie-In to Existing CWISs Unit 2 $3,569,000 Unit 3 $3,569,000 Installation Unit 2 $360,000 Unit 3 $360,000 Field Service Testing and Commissioning Unit 2 $336,000 Unit 3 $336,000 Subtotal $8,530,000 Total Work Scope Subtotal $30,774,000 Corporate Overheads and Work In Progress Cost (30%) $9,233,000 Recommended Minimum Contingency (30%) $12,003,000 

### Recommended Engineering and Construction Budget $52,010,000

1 - System Includes Differential Pressure Sensors and Hydraulic Stop Log Opening System 2 - System Includes Piping, Air Compre ssor, Receiver, and Control SystemALTERNATIVE INTAKE TECHNOLOGIES AT INDIAN POINT UNITS 2 & 3 Attachment 4

Page 13 of 13 The following summarizes the construction cost es timate in 2009 dollars fo r the installation of Aquatic Filter Barriers (Gunderboom M LESsTM) around the Unit 2 and Unit 3 CWISs: 

### Gunderboom MLESsTM (Curtain Fa bric Flow Rate = 7.5 gpm/ft 2 

### ) Work Scope Estimated Cost Design Engineering Costs $200,000
Procurement Costs Exclusion Barrier $23,310,000 Mooring System $3,330,000 Airburst Automatic Cleaning System $5,994,000 Subtotal $32,634,000

Tasks for MLES TM Implementation Installation $1,832,000 Deployment of Anchors $3,996,000 Field Service Testing and Commissioning $1,199,000 Subtotal $7,027,000 Total Work Scope Subtotal $39,861,000 Corporate Overheads and Work In Progress Cost (30%) $11,959,000 Recommended Minimum Contingency (30%) $15,546,000 

### Recommended Engineering and Construction Budget $67,366,000