Exhibit C.378: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 100 and Fewer Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                         $4,069
                                                                         $4,069
                                                                             $0
                                                                         $4,054
                                                                         $4,054
 System Lead Service Line Replacement (Mandatory)
                                                                            $31
                                                                           $517
                                                                           $486
                                                                           $811
                                                                         $1,000
                                                                           $189
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $1
                                                                            $60
                                                                            $59
                                                                            $11
                                                                            $94
                                                                            $83
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                            $31
                                                                         $4,646
                                                                         $4,614
                                                                           $822
                                                                         $5,148
                                                                         $4,326
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                            $31
                                                                         $4,646
                                                                         $4,614
                                                                           $822
                                                                         $5,148
                                                                         $4,326
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.379: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 101 to 500 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                         $3,572
                                                                         $3,572
                                                                             $0
                                                                         $3,564
                                                                         $3,564
 System Lead Service Line Replacement (Mandatory)
                                                                            $53
                                                                           $260
                                                                           $207
                                                                         $1,577
                                                                           $442
                                                                        $-1,135
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $1
                                                                            $28
                                                                            $28
                                                                             $9
                                                                            $37
                                                                            $28
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                            $53
                                                                         $3,860
                                                                         $3,807
                                                                         $1,586
                                                                         $4,044
                                                                         $2,458
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                            $53
                                                                         $3,860
                                                                         $3,807
                                                                         $1,586
                                                                         $4,044
                                                                         $2,458
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.380: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 501 to 1,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                         $1,166
                                                                         $1,166
                                                                             $0
                                                                         $1,153
                                                                         $1,153
 System Lead Service Line Replacement (Mandatory)
                                                                             $8
                                                                           $129
                                                                           $121
                                                                           $358
                                                                           $500
                                                                           $142
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                            $12
                                                                            $12
                                                                             $3
                                                                            $30
                                                                            $27
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                             $8
                                                                         $1,307
                                                                         $1,299
                                                                           $361
                                                                         $1,683
                                                                         $1,322
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                             $8
                                                                         $1,307
                                                                         $1,299
                                                                           $361
                                                                         $1,683
                                                                         $1,322
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.381: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 1,001 to 3,300 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                         $1,311
                                                                         $1,311
                                                                             $0
                                                                         $1,308
                                                                         $1,308
 System Lead Service Line Replacement (Mandatory)
                                                                            $12
                                                                           $360
                                                                           $348
                                                                           $227
                                                                         $1,415
                                                                         $1,187
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                            $18
                                                                            $18
                                                                             $2
                                                                            $40
                                                                            $38
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                            $12
                                                                         $1,689
                                                                         $1,677
                                                                           $229
                                                                         $2,763
                                                                         $2,533
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                            $12
                                                                         $1,689
                                                                         $1,677
                                                                           $229
                                                                         $2,763
                                                                         $2,533
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.382: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 3,301 to 10,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                         $1,135
                                                                         $1,135
                                                                             $0
                                                                         $1,127
                                                                         $1,127
 System Lead Service Line Replacement (Mandatory)
                                                                             $7
                                                                           $111
                                                                           $105
                                                                            $78
                                                                           $349
                                                                           $271
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                             $6
                                                                             $6
                                                                             $1
                                                                            $13
                                                                            $12
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                             $7
                                                                         $1,253
                                                                         $1,246
                                                                            $79
                                                                         $1,489
                                                                         $1,410
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                             $7
                                                                         $1,253
                                                                         $1,246
                                                                            $79
                                                                         $1,489
                                                                         $1,410
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.383: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 10,001 to 50,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                           $261
                                                                           $261
                                                                             $0
                                                                           $260
                                                                           $260
 System Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                            $30
                                                                            $30
                                                                            $34
                                                                           $166
                                                                           $131
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                             $2
                                                                             $2
                                                                             $0
                                                                             $4
                                                                             $4
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                             $0
                                                                           $292
                                                                           $292
                                                                            $35
                                                                           $430
                                                                           $395
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                             $0
                                                                           $292
                                                                           $292
                                                                            $35
                                                                           $430
                                                                           $395
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.384: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 50,001 to 100,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                            $55
                                                                            $55
                                                                             $0
                                                                            $55
                                                                            $55
 System Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $3
                                                                             $3
                                                                             $4
                                                                            $24
                                                                            $20
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $1
                                                                             $1
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                             $0
                                                                            $58
                                                                            $58
                                                                             $4
                                                                            $79
                                                                            $75
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                             $0
                                                                            $58
                                                                            $58
                                                                             $4
                                                                            $79
                                                                            $75
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.385: National Annualized Lead Service Line Replacement Costs - Public NTNCWS of Size 100,001 to 1,000,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Lead Service Line Inventory
                                                                             $0
                                                                            $62
                                                                            $62
                                                                             $0
                                                                            $62
                                                                            $62
 System Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $4
                                                                             $4
                                                                             $4
                                                                            $20
                                                                            $16
 System Lead Service Line Replacement Plan
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Goal Based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Activities Triggered by Not Meeting Goal
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 System Lead Service Line Replacement (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Service Line Replacement Ancillary Activities (Customer-Initiated)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual PWS Lead Service Replacement Costs
                                                                             $0
                                                                            $66
                                                                            $66
                                                                             $4
                                                                            $82
                                                                            $78
 Household Lead Service Line Replacement (Mandatory)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Household Lead Service Line Replacement (Goal based)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Lead Service Replacement Costs
                                                                             $0
                                                                            $66
                                                                            $66
                                                                             $4
                                                                            $82
                                                                            $78
 Notes: Detail may not add exactly to total due to independent rounding.

National Annualized Corrosion Control Technology Costs
3 Percent Discount Rate
 Exhibit C.386: National Annualized Corrosion Control Technology Costs - All PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                   $327,171,000
                                                                   $327,171,000
                                                                             $0
                                                                   $327,490,000
                                                                   $327,490,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                     $1,356,000
                                                                     $1,735,000
                                                                       $379,000
                                                                     $1,355,000
                                                                     $1,719,000
                                                                       $363,000
 CCT Installation
                                                                    $13,424,000
                                                                     $7,138,000
                                                                    $-6,286,000
                                                                    $41,261,000
                                                                    $19,392,000
                                                                   $-21,869,000
 CCT Installation Ancillary Activities
                                                                        $43,000
                                                                       $122,000
                                                                        $80,000
                                                                       $119,000
                                                                       $754,000
                                                                       $635,000
 CCT Re-Optimization (Due to ALE)
                                                                     $2,479,000
                                                                     $6,575,000
                                                                     $4,096,000
                                                                    $15,374,000
                                                                    $33,425,000
                                                                    $18,051,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                        $11,000
                                                                     $1,449,000
                                                                     $1,438,000
                                                                        $81,000
                                                                    $27,261,000
                                                                    $27,180,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                     $5,452,000
                                                                     $5,452,000
                                                                             $0
                                                                    $20,724,000
                                                                    $20,724,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $98,000
                                                                        $98,000
                                                                             $0
                                                                       $444,000
                                                                       $444,000
 Find and Fix Installation
                                                                             $0
                                                                     $8,271,000
                                                                     $8,271,000
                                                                             $0
                                                                    $31,688,000
                                                                    $31,688,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                     $5,884,000
                                                                     $5,884,000
                                                                             $0
                                                                     $8,190,000
                                                                     $8,190,000
 Total Annual Corrosion Control Technology Costs
                                                                   $344,483,000
                                                                   $363,894,000
                                                                    $19,412,000
                                                                   $385,681,000
                                                                   $471,087,000
                                                                    $85,407,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.387: National Annualized Corrosion Control Technology Costs - CWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                   $318,644,000
                                                                   $318,644,000
                                                                             $0
                                                                   $318,964,000
                                                                   $318,964,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                     $1,014,000
                                                                     $1,348,000
                                                                       $333,000
                                                                     $1,015,000
                                                                     $1,337,000
                                                                       $322,000
 CCT Installation
                                                                    $10,936,000
                                                                     $7,105,000
                                                                    $-3,831,000
                                                                    $34,026,000
                                                                    $19,310,000
                                                                   $-14,716,000
 CCT Installation Ancillary Activities
                                                                        $40,000
                                                                       $122,000
                                                                        $82,000
                                                                       $111,000
                                                                       $753,000
                                                                       $642,000
 CCT Re-Optimization (Due to ALE)
                                                                     $2,386,000
                                                                     $6,544,000
                                                                     $4,158,000
                                                                    $14,962,000
                                                                    $33,360,000
                                                                    $18,398,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                        $10,000
                                                                     $1,447,000
                                                                     $1,436,000
                                                                        $78,000
                                                                    $27,257,000
                                                                    $27,179,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                     $5,399,000
                                                                     $5,399,000
                                                                             $0
                                                                    $20,261,000
                                                                    $20,261,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $95,000
                                                                        $95,000
                                                                             $0
                                                                       $403,000
                                                                       $403,000
 Find and Fix Installation
                                                                             $0
                                                                     $8,210,000
                                                                     $8,210,000
                                                                             $0
                                                                    $31,339,000
                                                                    $31,339,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                     $5,287,000
                                                                     $5,287,000
                                                                             $0
                                                                     $7,556,000
                                                                     $7,556,000
 Total Annual Corrosion Control Technology Costs
                                                                   $333,031,000
                                                                   $354,200,000
                                                                    $21,170,000
                                                                   $369,156,000
                                                                   $460,538,000
                                                                    $91,382,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.388: National Annualized Corrosion Control Technology Costs - NTNCWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $8,527,000
                                                                     $8,527,000
                                                                             $0
                                                                     $8,527,000
                                                                     $8,527,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $341,000
                                                                       $387,000
                                                                        $46,000
                                                                       $341,000
                                                                       $382,000
                                                                        $41,000
 CCT Installation
                                                                     $2,488,000
                                                                        $33,000
                                                                    $-2,454,000
                                                                     $7,235,000
                                                                        $82,000
                                                                    $-7,153,000
 CCT Installation Ancillary Activities
                                                                         $2,989
                                                                           $647
                                                                        $-2,342
                                                                         $8,790
                                                                         $1,441
                                                                        $-7,349
 CCT Re-Optimization (Due to ALE)
                                                                        $93,000
                                                                        $31,000
                                                                       $-61,000
                                                                       $412,000
                                                                        $65,000
                                                                      $-347,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $888
                                                                         $1,984
                                                                         $1,095
                                                                         $2,465
                                                                         $4,142
                                                                         $1,677
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $52,000
                                                                        $52,000
                                                                             $0
                                                                       $463,000
                                                                       $463,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,636
                                                                         $2,636
                                                                             $0
                                                                        $41,000
                                                                        $41,000
 Find and Fix Installation
                                                                             $0
                                                                        $61,000
                                                                        $61,000
                                                                             $0
                                                                       $349,000
                                                                       $349,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $597,000
                                                                       $597,000
                                                                             $0
                                                                       $634,000
                                                                       $634,000
 Total Annual Corrosion Control Technology Costs
                                                                    $11,452,000
                                                                     $9,694,000
                                                                    $-1,758,000
                                                                    $16,525,000
                                                                    $10,549,000
                                                                    $-5,976,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.389: National Annualized Corrosion Control Technology Costs - Private PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $41,919,000
                                                                    $41,919,000
                                                                             $0
                                                                    $41,956,000
                                                                    $41,956,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $390,000
                                                                       $475,000
                                                                        $85,000
                                                                       $391,000
                                                                       $470,000
                                                                        $80,000
 CCT Installation
                                                                     $4,462,000
                                                                     $1,370,000
                                                                    $-3,092,000
                                                                    $14,596,000
                                                                     $3,630,000
                                                                   $-10,966,000
 CCT Installation Ancillary Activities
                                                                         $5,408
                                                                        $36,000
                                                                        $31,000
                                                                        $16,000
                                                                       $146,000
                                                                       $130,000
 CCT Re-Optimization (Due to ALE)
                                                                       $245,000
                                                                       $616,000
                                                                       $371,000
                                                                     $2,286,000
                                                                     $3,829,000
                                                                     $1,543,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $582
                                                                       $150,000
                                                                       $149,000
                                                                        $11,000
                                                                     $3,636,000
                                                                     $3,625,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $805,000
                                                                       $805,000
                                                                             $0
                                                                     $3,227,000
                                                                     $3,227,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $30,000
                                                                        $30,000
                                                                             $0
                                                                       $102,000
                                                                       $102,000
 Find and Fix Installation
                                                                             $0
                                                                     $1,265,000
                                                                     $1,265,000
                                                                             $0
                                                                     $4,259,000
                                                                     $4,259,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                     $1,787,000
                                                                     $1,787,000
                                                                             $0
                                                                     $2,119,000
                                                                     $2,119,000
 Total Annual Corrosion Control Technology Costs
                                                                    $47,022,000
                                                                    $48,453,000
                                                                     $1,432,000
                                                                    $59,257,000
                                                                    $63,375,000
                                                                     $4,118,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.390: National Annualized Corrosion Control Technology Costs - Public PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                   $285,252,000
                                                                   $285,252,000
                                                                             $0
                                                                   $285,534,000
                                                                   $285,534,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $965,000
                                                                     $1,259,000
                                                                       $294,000
                                                                       $965,000
                                                                     $1,248,000
                                                                       $284,000
 CCT Installation
                                                                     $8,962,000
                                                                     $5,768,000
                                                                    $-3,194,000
                                                                    $26,665,000
                                                                    $15,761,000
                                                                   $-10,904,000
 CCT Installation Ancillary Activities
                                                                        $37,000
                                                                        $86,000
                                                                        $49,000
                                                                       $103,000
                                                                       $608,000
                                                                       $505,000
 CCT Re-Optimization (Due to ALE)
                                                                     $2,234,000
                                                                     $5,960,000
                                                                     $3,725,000
                                                                    $13,087,000
                                                                    $29,596,000
                                                                    $16,508,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                        $11,000
                                                                     $1,299,000
                                                                     $1,288,000
                                                                        $70,000
                                                                    $23,626,000
                                                                    $23,555,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                     $4,646,000
                                                                     $4,646,000
                                                                             $0
                                                                    $17,497,000
                                                                    $17,497,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $68,000
                                                                        $68,000
                                                                             $0
                                                                       $342,000
                                                                       $342,000
 Find and Fix Installation
                                                                             $0
                                                                     $7,006,000
                                                                     $7,006,000
                                                                             $0
                                                                    $27,429,000
                                                                    $27,429,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                     $4,097,000
                                                                     $4,097,000
                                                                             $0
                                                                     $6,071,000
                                                                     $6,071,000
 Total Annual Corrosion Control Technology Costs
                                                                   $297,461,000
                                                                   $315,441,000
                                                                    $17,980,000
                                                                   $326,424,000
                                                                   $407,713,000
                                                                    $81,289,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.391: National Annualized Corrosion Control Technology Costs - Private CWS of Size 100 and Fewer Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $2,808,000
                                                                     $2,808,000
                                                                             $0
                                                                     $2,808,000
                                                                     $2,808,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $145,000
                                                                       $169,000
                                                                        $24,000
                                                                       $146,000
                                                                       $167,000
                                                                        $22,000
 CCT Installation
                                                                     $1,683,000
                                                                         $8,278
                                                                    $-1,675,000
                                                                     $5,393,000
                                                                             $0
                                                                    $-5,393,000
 CCT Installation Ancillary Activities
                                                                           $876
                                                                             $0
                                                                          $-876
                                                                         $2,700
                                                                             $0
                                                                        $-2,700
 CCT Re-Optimization (Due to ALE)
                                                                         $6,843
                                                                           $679
                                                                        $-6,163
                                                                       $189,000
                                                                        $14,000
                                                                      $-176,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $28
                                                                             $0
                                                                           $-28
                                                                           $365
                                                                             $0
                                                                          $-365
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $48,000
                                                                        $48,000
                                                                             $0
                                                                       $254,000
                                                                       $254,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $6,777
                                                                         $6,777
                                                                             $0
                                                                        $23,000
                                                                        $23,000
 Find and Fix Installation
                                                                             $0
                                                                         $8,718
                                                                         $8,718
                                                                             $0
                                                                        $34,000
                                                                        $34,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $643,000
                                                                       $643,000
                                                                             $0
                                                                       $657,000
                                                                       $657,000
 Total Annual Corrosion Control Technology Costs
                                                                     $4,644,000
                                                                     $3,693,000
                                                                      $-951,000
                                                                     $8,539,000
                                                                     $3,957,000
                                                                    $-4,583,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.392: National Annualized Corrosion Control Technology Costs - Private CWS of Size 101 to 500 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $4,943,000
                                                                     $4,943,000
                                                                             $0
                                                                     $4,943,000
                                                                     $4,943,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $138,000
                                                                       $161,000
                                                                        $23,000
                                                                       $138,000
                                                                       $159,000
                                                                        $21,000
 CCT Installation
                                                                     $1,795,000
                                                                       $496,000
                                                                    $-1,299,000
                                                                     $5,546,000
                                                                       $916,000
                                                                    $-4,630,000
 CCT Installation Ancillary Activities
                                                                           $791
                                                                        $19,000
                                                                        $18,000
                                                                         $2,265
                                                                        $35,000
                                                                        $32,000
 CCT Re-Optimization (Due to ALE)
                                                                         $8,516
                                                                        $20,000
                                                                        $12,000
                                                                       $290,000
                                                                        $87,000
                                                                      $-203,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $19
                                                                             $0
                                                                           $-19
                                                                           $441
                                                                       $226,000
                                                                       $226,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $110,000
                                                                       $110,000
                                                                             $0
                                                                       $404,000
                                                                       $404,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $8,646
                                                                         $8,646
                                                                             $0
                                                                        $25,000
                                                                        $25,000
 Find and Fix Installation
                                                                             $0
                                                                       $205,000
                                                                       $205,000
                                                                             $0
                                                                       $565,000
                                                                       $565,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $574,000
                                                                       $574,000
                                                                             $0
                                                                       $619,000
                                                                       $619,000
 Total Annual Corrosion Control Technology Costs
                                                                     $6,886,000
                                                                     $6,538,000
                                                                      $-348,000
                                                                    $10,920,000
                                                                     $7,979,000
                                                                    $-2,941,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.393: National Annualized Corrosion Control Technology Costs - Private CWS of Size 501 to 1,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,591,000
                                                                     $1,591,000
                                                                             $0
                                                                     $1,591,000
                                                                     $1,591,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $22,000
                                                                        $26,000
                                                                         $3,994
                                                                        $22,000
                                                                        $26,000
                                                                         $3,881
 CCT Installation
                                                                       $322,000
                                                                       $263,000
                                                                       $-59,000
                                                                     $1,083,000
                                                                       $682,000
                                                                      $-402,000
 CCT Installation Ancillary Activities
                                                                           $135
                                                                         $7,954
                                                                         $7,819
                                                                           $320
                                                                        $60,000
                                                                        $60,000
 CCT Re-Optimization (Due to ALE)
                                                                         $3,578
                                                                         $9,547
                                                                         $5,969
                                                                        $53,000
                                                                       $211,000
                                                                       $158,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $5
                                                                         $5,524
                                                                         $5,519
                                                                            $73
                                                                       $700,000
                                                                       $700,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $21,000
                                                                        $21,000
                                                                             $0
                                                                       $182,000
                                                                       $182,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,986
                                                                         $1,986
                                                                             $0
                                                                         $7,594
                                                                         $7,594
 Find and Fix Installation
                                                                             $0
                                                                       $112,000
                                                                       $112,000
                                                                             $0
                                                                       $483,000
                                                                       $483,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $98,000
                                                                        $98,000
                                                                             $0
                                                                       $138,000
                                                                       $138,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,939,000
                                                                     $2,136,000
                                                                       $197,000
                                                                     $2,750,000
                                                                     $4,081,000
                                                                     $1,331,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.394: National Annualized Corrosion Control Technology Costs - Private CWS of Size 1,001 to 3,300 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,769,000
                                                                     $1,769,000
                                                                             $0
                                                                     $1,770,000
                                                                     $1,770,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $20,000
                                                                        $24,000
                                                                         $3,892
                                                                        $20,000
                                                                        $23,000
                                                                         $3,845
 CCT Installation
                                                                        $90,000
                                                                       $115,000
                                                                        $26,000
                                                                       $970,000
                                                                       $695,000
                                                                      $-274,000
 CCT Installation Ancillary Activities
                                                                           $609
                                                                         $2,314
                                                                         $1,705
                                                                         $4,475
                                                                        $22,000
                                                                        $18,000
 CCT Re-Optimization (Due to ALE)
                                                                        $11,000
                                                                        $21,000
                                                                        $10,000
                                                                       $116,000
                                                                       $309,000
                                                                       $193,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $239
                                                                        $12,000
                                                                        $12,000
                                                                         $2,307
                                                                       $668,000
                                                                       $665,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $22,000
                                                                        $22,000
                                                                             $0
                                                                       $201,000
                                                                       $201,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,168
                                                                         $1,168
                                                                             $0
                                                                         $6,076
                                                                         $6,076
 Find and Fix Installation
                                                                             $0
                                                                       $111,000
                                                                       $111,000
                                                                             $0
                                                                       $457,000
                                                                       $457,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $94,000
                                                                        $94,000
                                                                             $0
                                                                       $144,000
                                                                       $144,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,890,000
                                                                     $2,171,000
                                                                       $281,000
                                                                     $2,882,000
                                                                     $4,296,000
                                                                     $1,413,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.395: National Annualized Corrosion Control Technology Costs - Private CWS of Size 3,301 to 10,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $2,035,000
                                                                     $2,035,000
                                                                             $0
                                                                     $2,039,000
                                                                     $2,039,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $8,308
                                                                        $11,000
                                                                         $2,435
                                                                         $8,300
                                                                        $11,000
                                                                         $2,414
 CCT Installation
                                                                       $207,000
                                                                       $217,000
                                                                         $9,786
                                                                       $426,000
                                                                       $439,000
                                                                        $13,000
 CCT Installation Ancillary Activities
                                                                         $1,402
                                                                         $2,459
                                                                         $1,057
                                                                         $1,688
                                                                         $4,049
                                                                         $2,362
 CCT Re-Optimization (Due to ALE)
                                                                         $5,930
                                                                        $35,000
                                                                        $29,000
                                                                       $146,000
                                                                       $319,000
                                                                       $173,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $11
                                                                        $22,000
                                                                        $22,000
                                                                         $1,355
                                                                       $237,000
                                                                       $236,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $21,000
                                                                        $21,000
                                                                             $0
                                                                       $175,000
                                                                       $175,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $166
                                                                           $166
                                                                             $0
                                                                         $4,991
                                                                         $4,991
 Find and Fix Installation
                                                                             $0
                                                                       $108,000
                                                                       $108,000
                                                                             $0
                                                                       $393,000
                                                                       $393,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $50,000
                                                                        $50,000
                                                                             $0
                                                                        $80,000
                                                                        $80,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,258,000
                                                                     $2,500,000
                                                                       $242,000
                                                                     $2,622,000
                                                                     $3,701,000