$15,000
                                                                        $10,000
                                                                       $144,000
                                                                       $212,000
                                                                        $67,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $14
                                                                             $0
                                                                           $-14
                                                                           $353
                                                                     $1,080,000
                                                                     $1,080,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $51,000
                                                                        $51,000
                                                                             $0
                                                                       $202,000
                                                                       $202,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $7,769
                                                                         $7,769
                                                                             $0
                                                                        $21,000
                                                                        $21,000
 Find and Fix Installation
                                                                             $0
                                                                        $58,000
                                                                        $58,000
                                                                             $0
                                                                       $316,000
                                                                       $316,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $112,000
                                                                       $112,000
                                                                             $0
                                                                       $117,000
                                                                       $117,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,120,000
                                                                     $2,333,000
                                                                       $213,000
                                                                     $2,504,000
                                                                     $4,122,000
                                                                     $1,618,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.474: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                     $1,898,000
                                                                     $1,898,000
                                                                             $0
                                                                     $1,898,000
                                                                     $1,898,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $18,000
                                                                        $25,000
                                                                         $7,154
                                                                        $18,000
                                                                        $25,000
                                                                         $6,722
 CCT Installation
                                                                        $85,000
                                                                        $93,000
                                                                         $7,196
                                                                       $315,000
                                                                       $268,000
                                                                       $-47,000
 CCT Installation Ancillary Activities
                                                                            $73
                                                                         $4,206
                                                                         $4,133
                                                                           $204
                                                                       $110,000
                                                                       $109,000
 CCT Re-Optimization (Due to ALE)
                                                                         $9,694
                                                                        $22,000
                                                                        $12,000
                                                                       $114,000
                                                                       $413,000
                                                                       $299,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $30
                                                                        $18,000
                                                                        $18,000
                                                                           $247
                                                                     $1,942,000
                                                                     $1,942,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $34,000
                                                                        $34,000
                                                                             $0
                                                                       $196,000
                                                                       $196,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,729
                                                                         $3,729
                                                                             $0
                                                                        $17,000
                                                                        $17,000
 Find and Fix Installation
                                                                             $0
                                                                        $73,000
                                                                        $73,000
                                                                             $0
                                                                       $622,000
                                                                       $622,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $85,000
                                                                        $85,000
                                                                             $0
                                                                       $130,000
                                                                       $130,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,011,000
                                                                     $2,256,000
                                                                       $245,000
                                                                     $2,346,000
                                                                     $5,621,000
                                                                     $3,276,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.475: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                     $6,871,000
                                                                     $6,871,000
                                                                             $0
                                                                     $6,880,000
                                                                     $6,880,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $51,000
                                                                        $77,000
                                                                        $25,000
                                                                        $51,000
                                                                        $75,000
                                                                        $24,000
 CCT Installation
                                                                       $269,000
                                                                       $281,000
                                                                        $11,000
                                                                       $677,000
                                                                       $698,000
                                                                        $21,000
 CCT Installation Ancillary Activities
                                                                         $3,053
                                                                         $9,522
                                                                         $6,469
                                                                         $7,154
                                                                        $37,000
                                                                        $29,000
 CCT Re-Optimization (Due to ALE)
                                                                        $58,000
                                                                       $156,000
                                                                        $98,000
                                                                       $505,000
                                                                     $1,626,000
                                                                     $1,121,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $1,939
                                                                       $251,000
                                                                       $249,000
                                                                        $15,000
                                                                     $5,279,000
                                                                     $5,265,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $144,000
                                                                       $144,000
                                                                             $0
                                                                       $725,000
                                                                       $725,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $9,323
                                                                         $9,323
                                                                             $0
                                                                        $44,000
                                                                        $44,000
 Find and Fix Installation
                                                                             $0
                                                                       $338,000
                                                                       $338,000
                                                                             $0
                                                                     $2,013,000
                                                                     $2,013,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $239,000
                                                                       $239,000
                                                                             $0
                                                                       $439,000
                                                                       $439,000
 Total Annual Corrosion Control Technology Costs
                                                                     $7,255,000
                                                                     $8,376,000
                                                                     $1,121,000
                                                                     $8,135,000
                                                                    $17,817,000
                                                                     $9,682,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.476: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                    $15,893,000
                                                                    $15,893,000
                                                                             $0
                                                                    $15,941,000
                                                                    $15,941,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $76,000
                                                                       $107,000
                                                                        $31,000
                                                                        $76,000
                                                                       $105,000
                                                                        $29,000
 CCT Installation
                                                                       $320,000
                                                                       $338,000
                                                                        $19,000
                                                                       $976,000
                                                                     $1,017,000
                                                                        $41,000
 CCT Installation Ancillary Activities
                                                                         $4,542
                                                                         $5,687
                                                                         $1,145
                                                                         $9,725
                                                                        $17,000
                                                                         $6,806
 CCT Re-Optimization (Due to ALE)
                                                                       $241,000
                                                                       $412,000
                                                                       $171,000
                                                                     $1,161,000
                                                                     $3,155,000
                                                                     $1,995,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $3,461
                                                                       $227,000
                                                                       $224,000
                                                                        $20,000
                                                                     $4,399,000
                                                                     $4,379,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $303,000
                                                                       $303,000
                                                                             $0
                                                                     $1,562,000
                                                                     $1,562,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $10,000
                                                                        $10,000
                                                                             $0
                                                                        $65,000
                                                                        $65,000
 Find and Fix Installation
                                                                             $0
                                                                       $643,000
                                                                       $643,000
                                                                             $0
                                                                     $3,608,000
                                                                     $3,608,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $325,000
                                                                       $325,000
                                                                             $0
                                                                       $658,000
                                                                       $658,000
 Total Annual Corrosion Control Technology Costs
                                                                    $16,538,000
                                                                    $18,264,000
                                                                     $1,726,000
                                                                    $18,184,000
                                                                    $30,529,000
                                                                    $12,346,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.477: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                    $38,171,000
                                                                    $38,171,000
                                                                             $0
                                                                    $38,193,000
                                                                    $38,193,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $71,000
                                                                       $112,000
                                                                        $40,000
                                                                        $72,000
                                                                       $110,000
                                                                        $39,000
 CCT Installation
                                                                       $478,000
                                                                       $436,000
                                                                       $-42,000
                                                                     $1,224,000
                                                                     $1,196,000
                                                                       $-28,000
 CCT Installation Ancillary Activities
                                                                         $8,645
                                                                         $3,571
                                                                        $-5,074
                                                                        $23,000
                                                                        $21,000
                                                                        $-1,845
 CCT Re-Optimization (Due to ALE)
                                                                       $265,000
                                                                     $1,225,000
                                                                       $960,000
                                                                     $2,388,000
                                                                     $5,700,000
                                                                     $3,312,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $2,033
                                                                       $408,000
                                                                       $405,000
                                                                        $18,000
                                                                     $3,143,000
                                                                     $3,125,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $910,000
                                                                       $910,000
                                                                             $0
                                                                     $3,002,000
                                                                     $3,002,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $62,000
                                                                        $62,000
 Find and Fix Installation
                                                                             $0
                                                                     $1,228,000
                                                                     $1,228,000
                                                                             $0
                                                                     $4,467,000
                                                                     $4,467,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $427,000
                                                                       $427,000
                                                                             $0
                                                                       $872,000
                                                                       $872,000
 Total Annual Corrosion Control Technology Costs
                                                                    $38,996,000
                                                                    $42,931,000
                                                                     $3,935,000
                                                                    $41,917,000
                                                                    $56,765,000
                                                                    $14,848,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.478: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                    $24,078,000
                                                                    $24,078,000
                                                                             $0
                                                                    $24,052,000
                                                                    $24,052,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $20,000
                                                                        $35,000
                                                                        $15,000
                                                                        $20,000
                                                                        $35,000
                                                                        $15,000
 CCT Installation
                                                                         $8,592
                                                                             $0
                                                                        $-8,592
                                                                        $51,000
                                                                        $44,000
                                                                        $-7,646
 CCT Installation Ancillary Activities
                                                                             $0
                                                                            $31
                                                                            $31
                                                                             $0
                                                                           $397
                                                                           $397
 CCT Re-Optimization (Due to ALE)
                                                                       $190,000
                                                                       $565,000
                                                                       $376,000
                                                                     $1,067,000
                                                                     $1,694,000
                                                                       $627,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                       $104,000
                                                                       $104,000
                                                                             $0
                                                                       $478,000
                                                                       $478,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $386,000
                                                                       $386,000
                                                                             $0
                                                                     $1,413,000
                                                                     $1,413,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,252
                                                                         $3,252
                                                                             $0
                                                                        $19,000
                                                                        $19,000
 Find and Fix Installation
                                                                             $0
                                                                       $425,000
                                                                       $425,000
                                                                             $0
                                                                     $1,199,000
                                                                     $1,199,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $163,000
                                                                       $163,000
                                                                             $0
                                                                       $248,000
                                                                       $248,000
 Total Annual Corrosion Control Technology Costs
                                                                    $24,296,000
                                                                    $25,760,000
                                                                     $1,464,000
                                                                    $25,190,000
                                                                    $29,183,000
                                                                     $3,993,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.479: National Annualized Corrosion Control Technology Costs - Public CWS 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
 CCT Operations and Maintenance (Existing)
                                                                    $57,150,000
                                                                    $57,150,000
                                                                             $0
                                                                    $57,251,000
                                                                    $57,251,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $15,000
                                                                        $32,000
                                                                        $16,000
                                                                        $15,000
                                                                        $31,000
                                                                        $16,000
 CCT Installation
                                                                         $2,827
                                                                             $0
                                                                        $-2,827
                                                                        $21,000
                                                                        $18,000
                                                                        $-2,879
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                            $53
                                                                            $53
 CCT Re-Optimization (Due to ALE)
                                                                       $427,000
                                                                       $954,000
                                                                       $527,000
                                                                     $2,429,000
                                                                     $4,760,000
                                                                     $2,331,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $81,000
                                                                        $81,000
                                                                             $0
                                                                       $707,000
                                                                       $707,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $822,000
                                                                       $822,000
                                                                             $0
                                                                     $3,154,000
                                                                     $3,154,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,776
                                                                         $2,776
                                                                             $0
                                                                        $17,000
                                                                        $17,000
 Find and Fix Installation
                                                                             $0
                                                                       $634,000
                                                                       $634,000
                                                                             $0
                                                                     $2,697,000
                                                                     $2,697,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $248,000
                                                                       $248,000
                                                                             $0
                                                                       $456,000
                                                                       $456,000
 Total Annual Corrosion Control Technology Costs
                                                                    $57,594,000
                                                                    $59,923,000
                                                                     $2,329,000
                                                                    $59,716,000
                                                                    $69,092,000
                                                                     $9,376,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.480: National Annualized Corrosion Control Technology Costs - Public CWS of Size Greater than 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
 CCT Operations and Maintenance (Existing)
                                                                    $25,699,000
                                                                    $25,699,000
                                                                             $0
                                                                    $25,719,000
                                                                    $25,719,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,517
                                                                         $2,561
                                                                         $1,044
                                                                         $1,517
                                                                         $2,561
                                                                         $1,044
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                         $3,399
                                                                         $3,399
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $34,000
                                                                       $172,000
                                                                       $138,000
                                                                        $35,000
                                                                       $237,000
                                                                       $202,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $197,000
                                                                       $197,000
                                                                             $0
                                                                       $189,000
                                                                       $189,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                        $96,000
                                                                        $96,000
                                                                             $0
                                                                       $106,000
                                                                       $106,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $9,475
                                                                         $9,475
                                                                             $0
                                                                         $9,542
                                                                         $9,542
 Total Annual Corrosion Control Technology Costs
                                                                    $25,734,000
                                                                    $26,175,000
                                                                       $440,000
                                                                    $25,756,000
                                                                    $26,267,000
                                                                       $511,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.481: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 100 and Fewer Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,879,000
                                                                     $1,879,000
                                                                             $0
                                                                     $1,879,000
                                                                     $1,879,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $140,000
                                                                       $155,000
                                                                        $15,000
                                                                       $140,000
                                                                       $153,000
                                                                        $13,000
 CCT Installation
                                                                     $1,100,000
                                                                             $0
                                                                    $-1,100,000
                                                                     $3,293,000
                                                                             $0
                                                                    $-3,293,000
 CCT Installation Ancillary Activities
                                                                         $1,222
                                                                             $0
                                                                        $-1,222
                                                                         $3,058
                                                                             $0
                                                                        $-3,058
 CCT Re-Optimization (Due to ALE)
                                                                        $14,000
                                                                           $483
                                                                       $-13,000
                                                                       $101,000
                                                                             $0
                                                                      $-101,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $54
                                                                             $0
                                                                           $-54
                                                                           $290
                                                                             $0
                                                                          $-290
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $13,000
                                                                        $13,000
                                                                             $0
                                                                       $123,000
                                                                       $123,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,332
                                                                         $1,332
                                                                             $0
                                                                        $18,000
                                                                        $18,000
 Find and Fix Installation
                                                                             $0
                                                                         $2,882
                                                                         $2,882
                                                                             $0
                                                                        $27,000
                                                                        $27,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $251,000
                                                                       $251,000
                                                                             $0
                                                                       $261,000
                                                                       $261,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,135,000
                                                                     $2,304,000
                                                                      $-831,000
                                                                     $5,416,000
                                                                     $2,461,000
                                                                    $-2,955,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.482: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 101 to 500 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $2,412,000
                                                                     $2,412,000
                                                                             $0
                                                                     $2,412,000
                                                                     $2,412,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $115,000
                                                                       $131,000
                                                                        $16,000
                                                                       $115,000
                                                                       $129,000
                                                                        $14,000
 CCT Installation
                                                                       $763,000
                                                                             $0
                                                                      $-763,000
                                                                     $2,525,000
                                                                             $0
                                                                    $-2,525,000
 CCT Installation Ancillary Activities
                                                                           $837
                                                                             $0
                                                                          $-837
                                                                         $2,390
                                                                             $0
                                                                        $-2,390
 CCT Re-Optimization (Due to ALE)
                                                                        $25,000
                                                                         $3,831
                                                                       $-21,000
                                                                       $132,000
                                                                         $1,890
                                                                      $-130,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $108
                                                                             $0
                                                                          $-108
                                                                           $351
                                                                           $371
                                                                            $20
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $10,000
                                                                        $10,000
                                                                             $0
                                                                       $145,000
                                                                       $145,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $666
                                                                           $666
                                                                             $0
                                                                        $19,000
                                                                        $19,000
 Find and Fix Installation
                                                                             $0
                                                                         $5,312
                                                                         $5,312
                                                                             $0
                                                                        $72,000
                                                                        $72,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $204,000
                                                                       $204,000
                                                                             $0
                                                                       $220,000
                                                                       $220,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,316,000
                                                                     $2,767,000
                                                                      $-548,000
                                                                     $5,186,000
                                                                     $2,999,000
                                                                    $-2,187,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.483: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 501 to 1,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $864,000
                                                                       $864,000
                                                                             $0
                                                                       $864,000
                                                                       $864,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $32,000
                                                                        $36,000
                                                                         $4,209
                                                                        $32,000
                                                                        $35,000
                                                                         $3,808
 CCT Installation
                                                                       $227,000
                                                                         $2,333
                                                                      $-225,000
                                                                       $700,000
                                                                           $926
                                                                      $-699,000
 CCT Installation Ancillary Activities
                                                                           $199
                                                                           $198
                                                                            $-1
                                                                           $540
                                                                             $0
                                                                          $-540
 CCT Re-Optimization (Due to ALE)
                                                                         $9,940
                                                                         $3,323
                                                                        $-6,617
                                                                        $53,000
                                                                         $8,322
                                                                       $-44,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $27
                                                                           $742
                                                                           $715
                                                                           $113
                                                                         $1,390
                                                                         $1,277
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $3,301
                                                                         $3,301
                                                                             $0
                                                                        $66,000
                                                                        $66,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $416
                                                                           $416
                                                                             $0
                                                                         $7,159
                                                                         $7,159
 Find and Fix Installation
                                                                             $0
                                                                         $7,082
                                                                         $7,082
                                                                             $0
                                                                        $70,000
                                                                        $70,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $51,000
                                                                        $51,000
                                                                             $0
                                                                        $58,000
                                                                        $58,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,133,000
                                                                       $969,000
                                                                      $-164,000
                                                                     $1,650,000
                                                                     $1,112,000
                                                                      $-537,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.484: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 1,001 to 3,300 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $655,000
                                                                       $655,000
                                                                             $0
                                                                       $655,000
                                                                       $655,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $18,000
                                                                        $22,000
                                                                         $3,358
                                                                        $18,000
                                                                        $22,000
                                                                         $3,137
 CCT Installation
                                                                       $127,000
                                                                         $7,002
                                                                      $-120,000
                                                                       $388,000
                                                                        $18,000
                                                                      $-371,000
 CCT Installation Ancillary Activities
                                                                         $1,217
                                                                           $283
                                                                          $-934
                                                                         $4,133
                                                                           $850
                                                                        $-3,283
 CCT Re-Optimization (Due to ALE)
                                                                        $11,000
                                                                         $3,902
                                                                        $-7,166
                                                                        $45,000
                                                                        $10,000
                                                                       $-35,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $522
                                                                           $795
                                                                           $273
                                                                         $1,237
                                                                         $1,377
                                                                           $141
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $6,777
                                                                         $6,777
                                                                             $0
                                                                        $40,000
                                                                        $40,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $476
                                                                           $476
                                                                             $0
                                                                         $3,235
                                                                         $3,235
 Find and Fix Installation
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $44,000
                                                                        $44,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $30,000
                                                                        $30,000
                                                                             $0
                                                                        $33,000
                                                                        $33,000
 Total Annual Corrosion Control Technology Costs
                                                                       $813,000
                                                                       $737,000
                                                                       $-76,000
                                                                     $1,112,000
                                                                       $828,000
                                                                      $-284,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.485: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 3,301 to 10,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $245,000
                                                                       $245,000
                                                                             $0
                                                                       $245,000
                                                                       $245,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $3,898
                                                                         $4,503
                                                                           $604
                                                                         $3,892
                                                                         $4,465
                                                                           $573
 CCT Installation
                                                                        $35,000
                                                                        $14,000
                                                                       $-20,000
                                                                        $91,000
                                                                        $40,000
                                                                       $-50,000
 CCT Installation Ancillary Activities
                                                                           $325
                                                                           $311
                                                                           $-14
                                                                         $1,100
                                                                           $856
                                                                          $-245
 CCT Re-Optimization (Due to ALE)
                                                                         $4,322
                                                                         $3,309
                                                                        $-1,013
                                                                        $15,000
                                                                         $9,357
                                                                        $-5,653
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $64
                                                                           $138
                                                                            $74
                                                                           $237
                                                                           $393
                                                                           $156
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,717
                                                                         $1,717
                                                                             $0
                                                                        $15,000
                                                                        $15,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                            $56
                                                                            $56
                                                                             $0
                                                                           $799
                                                                           $799
 Find and Fix Installation
                                                                             $0
                                                                         $8,106
                                                                         $8,106
                                                                             $0
                                                                        $32,000
                                                                        $32,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $8,494
                                                                         $8,494
                                                                             $0
                                                                         $9,947
                                                                         $9,947
 Total Annual Corrosion Control Technology Costs
                                                                       $288,000
                                                                       $286,000
                                                                        $-2,456
                                                                       $356,000
                                                                       $358,000
                                                                         $1,611
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.486: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 10,001 to 50,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $100,000
                                                                       $100,000
                                                                             $0
                                                                       $100,000
                                                                       $100,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $416
                                                                           $518
                                                                           $101
                                                                           $415
                                                                           $515
                                                                           $100
 CCT Installation
                                                                         $5,499
                                                                         $4,170
                                                                        $-1,329
                                                                        $16,000
                                                                        $12,000
                                                                        $-3,381
 CCT Installation Ancillary Activities
                                                                           $118
                                                                            $38
                                                                           $-80
                                                                           $337
                                                                           $123
                                                                          $-214
 CCT Re-Optimization (Due to ALE)
                                                                         $1,560
                                                                         $1,554
                                                                            $-6
                                                                         $4,562
                                                                         $3,536
                                                                        $-1,026
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $18
                                                                            $30
                                                                            $12
                                                                            $40
                                                                            $71
                                                                            $31
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                           $522
                                                                           $522
                                                                             $0
                                                                         $6,047
                                                                         $6,047
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $9
                                                                             $9
                                                                             $0
                                                                           $137
                                                                           $137
 Find and Fix Installation
                                                                             $0
                                                                         $2,570
                                                                         $2,570
                                                                             $0
                                                                         $9,542
                                                                         $9,542
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $1,297
                                                                         $1,297
                                                                             $0
                                                                         $1,560
                                                                         $1,560
 Total Annual Corrosion Control Technology Costs
                                                                       $107,000
                                                                       $111,000
                                                                         $3,095
                                                                       $121,000
                                                                       $134,000
                                                                        $13,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.487: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 50,001 to 100,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                        $52,000
                                                                        $52,000
                                                                             $0
                                                                        $52,000
                                                                        $52,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                            $76
                                                                           $103
                                                                            $27
                                                                            $76
                                                                           $103
                                                                            $27
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                           $604
                                                                           $123
                                                                          $-481
                                                                         $1,811
                                                                           $291
                                                                        $-1,520
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $2
                                                                             $2
                                                                             $0
                                                                             $6
                                                                             $6
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                           $321
                                                                           $321
                                                                             $0
                                                                         $1,956
                                                                         $1,956
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $4
                                                                             $4
                                                                             $0
                                                                            $42
                                                                            $42
 Find and Fix Installation
                                                                             $0
                                                                           $216
                                                                           $216
                                                                             $0
                                                                         $1,180
                                                                         $1,180
 Find and Fix Ancillary Activities
                                                                             $0
                                                                           $144
                                                                           $144
                                                                             $0
                                                                           $154
                                                                           $154
 Total Annual Corrosion Control Technology Costs
                                                                        $53,000
                                                                        $53,000
                                                                           $233
                                                                        $54,000
                                                                        $56,000
                                                                         $1,844
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.488: National Annualized Corrosion Control Technology 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
 CCT Operations and Maintenance (Existing)
                                                                       $306,000
                                                                       $306,000
                                                                             $0
                                                                       $306,000
                                                                       $306,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,029
                                                                         $5,395
                                                                         $1,366
                                                                         $4,038
                                                                         $5,313
                                                                         $1,275
 CCT Installation
                                                                        $22,000
                                                                             $0
                                                                       $-22,000
                                                                        $66,000
                                                                             $0
                                                                       $-66,000
 CCT Installation Ancillary Activities
                                                                            $22
                                                                             $0
                                                                           $-22
                                                                            $62
                                                                             $0
                                                                           $-62
 CCT Re-Optimization (Due to ALE)
                                                                         $2,069
                                                                           $119
                                                                        $-1,950
                                                                        $15,000
                                                                             $0
                                                                       $-15,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $11
                                                                             $0
                                                                           $-11
                                                                            $46
                                                                             $0
                                                                           $-46
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $2,620
                                                                         $2,620
                                                                             $0
                                                                        $21,000
                                                                        $21,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $216
                                                                           $216
                                                                             $0
                                                                         $2,664
                                                                         $2,664
 Find and Fix Installation
                                                                             $0
                                                                           $382
                                                                           $382
                                                                             $0
                                                                         $2,945
                                                                         $2,945
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $9,847
                                                                         $9,847
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 Total Annual Corrosion Control Technology Costs
                                                                       $334,000
                                                                       $325,000
                                                                        $-9,324
                                                                       $392,000
                                                                       $348,000
                                                                       $-44,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.489: National Annualized Corrosion Control Technology 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
 CCT Operations and Maintenance (Existing)
                                                                       $317,000
                                                                       $317,000
                                                                             $0
                                                                       $317,000
                                                                       $317,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,660
                                                                         $6,085
                                                                         $1,425
                                                                         $4,662
                                                                         $6,016
                                                                         $1,355
 CCT Installation
                                                                        $22,000
                                                                             $0
                                                                       $-22,000
                                                                        $68,000
                                                                             $0
                                                                       $-68,000
 CCT Installation Ancillary Activities
                                                                            $23
                                                                             $0
                                                                           $-23
                                                                            $63
                                                                             $0
                                                                           $-63
 CCT Re-Optimization (Due to ALE)
                                                                         $3,245
                                                                           $366
                                                                        $-2,879
                                                                        $18,000
                                                                            $91
                                                                       $-17,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $14
                                                                            $93
                                                                            $79
                                                                            $48
                                                                             $0
                                                                           $-48
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,723
                                                                         $1,723
                                                                             $0
                                                                        $21,000
                                                                        $21,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $183
                                                                           $183
                                                                             $0
                                                                         $2,697
                                                                         $2,697
 Find and Fix Installation
                                                                             $0
                                                                         $1,159
                                                                         $1,159
                                                                             $0
                                                                        $11,000
                                                                        $11,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $11,000
                                                                        $11,000
 Total Annual Corrosion Control Technology Costs
                                                                       $347,000
                                                                       $337,000
                                                                        $-9,958
                                                                       $407,000
                                                                       $369,000
                                                                       $-38,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.490: National Annualized Corrosion Control Technology 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
 CCT Operations and Maintenance (Existing)
                                                                       $173,000
                                                                       $173,000
                                                                             $0
                                                                       $173,000
                                                                       $173,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,758
                                                                         $2,272
                                                                           $514
                                                                         $1,758
                                                                         $2,245
                                                                           $487
 CCT Installation
                                                                         $4,540
                                                                             $2
                                                                        $-4,538
                                                                        $13,000
                                                                            $82
                                                                       $-13,000
 CCT Installation Ancillary Activities
                                                                             $4
                                                                             $0
                                                                            $-4
                                                                            $10
                                                                             $7
                                                                            $-4
 CCT Re-Optimization (Due to ALE)
                                                                         $1,713
                                                                           $831
                                                                          $-882
                                                                        $10,000
                                                                         $2,101
                                                                        $-8,155
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $6
                                                                           $146
                                                                           $140
                                                                            $23
                                                                           $280
                                                                           $257
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,101
                                                                         $1,101
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $115
                                                                           $115
                                                                             $0
                                                                         $1,201
                                                                         $1,201
 Find and Fix Installation
                                                                             $0
                                                                         $1,451
                                                                         $1,451
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $3,344
                                                                         $3,344
                                                                             $0
                                                                         $3,684
                                                                         $3,684
 Total Annual Corrosion Control Technology Costs
                                                                       $181,000
                                                                       $182,000
                                                                         $1,241
                                                                       $198,000
                                                                       $203,000
                                                                         $4,827
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.491: National Annualized Corrosion Control Technology 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
 CCT Operations and Maintenance (Existing)
                                                                       $317,000
                                                                       $317,000
                                                                             $0
                                                                       $317,000
                                                                       $317,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $2,632
                                                                         $3,575
                                                                           $943
                                                                         $2,631
                                                                         $3,542
                                                                           $910
 CCT Installation
                                                                         $7,788
                                                                           $386
                                                                        $-7,401
                                                                        $19,000
                                                                           $648
                                                                       $-19,000
 CCT Installation Ancillary Activities
                                                                           $103
                                                                            $16
                                                                           $-87
                                                                           $238
                                                                            $40
                                                                          $-199
 CCT Re-Optimization (Due to ALE)
                                                                         $5,500
                                                                         $2,570
                                                                        $-2,930
                                                                        $20,000
                                                                         $5,905
                                                                       $-14,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $186
                                                                           $363
                                                                           $177
                                                                           $451
                                                                           $742
                                                                           $290
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $2,225
                                                                         $2,225
                                                                             $0
                                                                        $23,000
                                                                        $23,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $147
                                                                           $147
                                                                             $0
                                                                         $1,698
                                                                         $1,698
 Find and Fix Installation
                                                                             $0
                                                                         $3,315
                                                                         $3,315
                                                                             $0
                                                                        $22,000
                                                                        $22,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $4,614
                                                                         $4,614
                                                                             $0
                                                                         $5,038
                                                                         $5,038
 Total Annual Corrosion Control Technology Costs
                                                                       $333,000
                                                                       $334,000
                                                                         $1,003
                                                                       $359,000
                                                                       $379,000
                                                                        $20,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.492: National Annualized Corrosion Control Technology 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
 CCT Operations and Maintenance (Existing)
                                                                       $403,000
                                                                       $403,000
                                                                             $0
                                                                       $403,000
                                                                       $403,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,995
                                                                         $2,608
                                                                           $613
                                                                         $1,994
                                                                         $2,594
                                                                           $600
 CCT Installation
                                                                         $2,871
                                                                         $1,386
                                                                        $-1,485
                                                                         $9,598
                                                                         $3,700
                                                                        $-5,898
 CCT Installation Ancillary Activities
                                                                            $46
                                                                            $35
                                                                           $-11
                                                                           $101
                                                                            $77
                                                                           $-24
 CCT Re-Optimization (Due to ALE)
                                                                         $8,478
                                                                         $5,466
                                                                        $-3,012
                                                                        $27,000
                                                                        $16,000
                                                                       $-11,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $159
                                                                           $245
                                                                            $86
                                                                           $416
                                                                           $659
                                                                           $243
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $3,623
                                                                         $3,623
                                                                             $0
                                                                        $27,000
                                                                        $27,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $120
                                                                           $120
                                                                             $0
                                                                         $1,390
                                                                         $1,390
 Find and Fix Installation
                                                                             $0
                                                                         $6,427
                                                                         $6,427
                                                                             $0
                                                                        $32,000