### Worksheet **Description**

IM&E per mgd Presents IM&E reductions per million gallons per day (mgd) of flow reduction by

loss mode. Benefits per mgd Presents annual monetized benefits per mgd of flow reduction (2011$). SP survey

per mgd Presents annual benefits per mgd of flow reduction based on the

results of the 316(b) stated preference (SP) survey. Note that benefits based on the SP surveyare not included in EPA's costbenefit comparison for the final rule and options considered. Benefits Monetized benefits for the final rule and options considered for new units. Does not include benefits associated with changes in greenhouse gas emissions based on the social cost of carbon (SCC) (2011$, in thousands). Benefits + SCC Monetized benefits for the final rule and options considered for new units including benefits associated with changes in greenhouse gas emissions based on SCC (2011$, in millions). SP benefits Presents national annualized benefits for IM&E reductions under the final rule and options considered for new units based on the SP Survey (2011$, in millions). IM&E Reductions Presents national IM&E reductions under the final rule and options considered for new units. **New Units Summary Tables for BA .xls**  Author: Abt Associates Inc. Created: 05/02/14 Purpose: To summarize IM&E reductions and estimated benefits for the final rule and options considered for new units. Many of the tables are presented in Chapter 12 of the Benefits Analysis for the final rule.**Forage Species Commercial and**  **Recreational Species All Species**  IM 4,340 712 5,052 133 E 4,069 1,922 5,991 175 **Commercial and Recreational**

**Harvest (fish per mgd)**  **IM&E Loss Mode**  **A1E per mgd**

Notes: IM = impingement mortality; E = entrainment; A1E = age-one equivalent; mgd = millions of gallons per day

aEPA calculated the reduction in IM&E per mgd of flow reduction nationally by dividing estimated baseline IM&E losses at existing facilities by baseline weighted AIF (in mgd). Source: U.S. EPA analysis for this report 

### Annual IM&E Reductions per MGD of Flow Reduction for New Units by Loss Mode**a Low**  **Mean High** 

IM $112 $216 $426 $11 $5 $4 E $173 $304 $551 $41 $3 $562 

### Annual Benefits per MGD of Flow Reduction for New Units by Loss Mode (2011$)**a**

Notes: IM = impingement mortality; E = entrainment

aEPA calculated benefits per mgd by dividing the monetized value of baseline IM&E losses at existing facilities by baseline weighted AIF (in mgd). bBenefits presented in this table do not include benefits associated with changes in greenhouse gas emissions. Source: U.S. EPA analysis for this report **IM&E Loss Mode**  **Recreational Commercial**  **T&E Nonuse** 

### IM&E Loss Mode **5th Percentile Mean**  **95th Percentile**

IM $9,117 $15,042 $20,950 E $15,142 $23,464 $33,214 Notes: IM = impingement mortality; E = entrainment

aEPA calculated benefits per mgd based on the SP survey by dividing the estimated value of baseline IM&E losses at existing facilities by baseline weighted AIF (in mgd). Source: U.S. EPA analysis for this report 

### Annual Benefits per MGD of Flow Reduction for New Units by Loss Mode based **on the SP Survey (2011$) a** **Low Mean**  **High Low** 

Option A $4,138.2 $7,370.2$13,553.0 $893.6 $90.7$13,077.4$18,199.9 Option B $1,491.3 $2,656.0$4,884.1 $322.0 $32.7 $4,712.8 $6,558.8 Option C $219.5 $390.9 $718.9 $47.4 $4.8 $693.7 $965.4 Final Rule-New Units $22.6 $40.2 $74.0 $4.9 $0.5 $71.4 $99.4
Option A $2,722.0 $4,848.0$8,914.9 $587.8 $59.7 $8,958.6$12,328.0 Option B $980.9 $1,747.1 $3,212.7 $211.8 $21.5 $3,228.4 $4,442.7 Option C $144.4 $257.1 $472.9 $31.2 $3.2 $475.2 $653.9 Final Rule-New Units $14.9 $26.5 $48.7 $3.2 $0.3 $48.9 $67.3 

### National Annualized Benefits for IM&E Reductions under the Final Rule and Options Considered for New Units (2011$, 1,000s)

**7% Discount Rate**

Source: U.S. EPA analysis for this report **Regulatory Option Recreational** 

**3% Discount Rate Commercial** **T&E Nonuse** **Mean High** 
$21,431.9$27,614.7 $7,723.5 $9,951.6 $1,136.8 $1,464.7 $117.0 $150.8
$14,454.0$18,520.9 $5,208.9 $6,674.5 $766.7 $982.4 $78.9 $101.1 

### National Annualized Benefits for IM&E Reductions under the Final Rule and Options Considered for New Units (2011$, 1,000s) **Total Benefits Low**  **Mean High** 

Option A $4.1 $7.4 $13.6 $0.9 $0.1 $13.1 -$22.5 Option B $1.5 $2.7 $4.9 $0.3 $0.0 $4.7 -$9.1 Option C $0.2 $0.4 $0.7 $0.0 $0.0 $0.7 -$2.1 Final Rule-New Units $0.0 $0.0 $0.1 $0.0 $0.0 $0.1 -$0.3
Option A $2.7 $4.8 $8.9 $0.6 $0.1 $9.0 -$13.8 Option B $1.0 $1.7 $3.2 $0.2 $0.0 $3.2 -$5.6 Option C $0.1 $0.3 $0.5 $0.0 $0.0 $0.5 -$1.3 Final Rule-New Units $0.0 $0.0 $0.0 $0.0 $0.0 $0.0 -$0.2 **3 % Discount Rate**

**7 % Discount Rate**

aSocial cost of carbon results presented here are based on 3 percent average SCC values. Source: U.S. EPA analysis for this report **Social Cost of Carbon** **a Regulatory Option**  **Recreational Commercial** **T&E Nonuse** **Low Mean**  **High**

-$4.3 -$1.1 $5.1 -$2.5 -$1.3 $0.9 -$1.1 -$0.9 -$0.6 -$0.2 -$0.2 -$0.1
-$1.5 $0.6 $4.7 -$1.1 -$0.4 $1.1 -$0.6 -$0.5 -$0.3 -$0.1 -$0.1 -$0.1

**Total Benefits Regulatory Option**  **5th Percentile Mean**  **95th Percentile**

Option A $381.8 $596.7 $842.7 Option B $137.6 $215.0 $303.7 Option C $20.3 $31.6 $44.7 Final Rule-New Units $2.1 $3.3 $4.6 Option A $270.7 $423.1 $597.5 Option B $97.6 $152.5 $215.3 Option C $14.4 $22.4 $31.7 Final Rule-New Units $1.5 $2.3 $3.3 **3 % Discount Rate**

**7 % Discount Rate**

Source: U.S. EPA analysis for this report 

### National Annualized Benefits for IM&E Reductions under the Final Rule and **Options Considered for New Units based on the SP Survey (2011$, millions)**

### Forage Species **Commercial and Recreational Species**  **All Species** Option A 303.94 123.86 427.81 12.28 Option B 109.53 44.64 154.17 4.43 Option C 16.12 6.57 22.69 0.65 Final Rule - New Units 1.66 0.68 2.34 0.07 

### Regulatory **Option A1E (in millions)**  **Commercial and Recreational Harvest**  **(millions of fish)**

Notes: A1E = age-one equivalent

aThe IM&E reductions presented in this table reflect the peak reduction achieved in 2059, the final year of the compliance period. Source: U.S. EPA analysis for this report 

### National IM&E Reductions under the Final Rule and Options Considered for New Units**a**