Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $572,000
                                                                       $572,000
                                                                             $0
                                                                       $572,000
                                                                       $572,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $7,545
                                                                        $11,000
                                                                         $3,038
                                                                         $7,568
                                                                        $10,000
                                                                         $2,909
 CCT Installation
                                                                        $31,000
                                                                           $522
                                                                       $-30,000
                                                                       $126,000
                                                                             $0
                                                                      $-126,000
 CCT Installation Ancillary Activities
                                                                            $30
                                                                            $66
                                                                            $36
                                                                           $118
                                                                             $0
                                                                          $-118
 CCT Re-Optimization (Due to ALE)
                                                                         $1,351
                                                                           $107
                                                                        $-1,244
                                                                        $41,000
                                                                         $1,482
                                                                       $-39,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $6
                                                                             $0
                                                                            $-6
                                                                           $111
                                                                             $0
                                                                          $-111
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $18,000
                                                                        $18,000
                                                                             $0
                                                                        $55,000
                                                                        $55,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,330
                                                                         $3,330
                                                                             $0
                                                                         $6,049
                                                                         $6,049
 Find and Fix Installation
                                                                             $0
                                                                         $1,892
                                                                         $1,892
                                                                             $0
                                                                         $4,613
                                                                         $4,613
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $33,000
                                                                        $33,000
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Total Annual Corrosion Control Technology Costs
                                                                       $612,000
                                                                       $640,000
                                                                        $28,000
                                                                       $746,000
                                                                       $678,000
                                                                       $-69,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.455: National Annualized Corrosion Control Technology Costs - Private CWS 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)
                                                                     $1,199,000
                                                                     $1,199,000
                                                                             $0
                                                                     $1,199,000
                                                                     $1,199,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $13,000
                                                                        $19,000
                                                                         $5,748
                                                                        $13,000
                                                                        $19,000
                                                                         $5,606
 CCT Installation
                                                                        $71,000
                                                                        $33,000
                                                                       $-38,000
                                                                       $189,000
                                                                        $65,000
                                                                      $-124,000
 CCT Installation Ancillary Activities
                                                                            $63
                                                                         $2,116
                                                                         $2,053
                                                                           $151
                                                                         $3,042
                                                                         $2,891
 CCT Re-Optimization (Due to ALE)
                                                                         $2,834
                                                                         $7,792
                                                                         $4,958
                                                                        $97,000
                                                                        $50,000
                                                                       $-46,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $9
                                                                             $0
                                                                            $-9
                                                                           $227
                                                                       $171,000
                                                                       $170,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                       $113,000
                                                                       $113,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $5,883
                                                                         $5,883
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Find and Fix Installation
                                                                             $0
                                                                        $36,000
                                                                        $36,000
                                                                             $0
                                                                        $84,000
                                                                        $84,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $64,000
                                                                        $64,000
                                                                             $0
                                                                        $57,000
                                                                        $57,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,286,000
                                                                     $1,406,000
                                                                       $120,000
                                                                     $1,499,000
                                                                     $1,773,000
                                                                       $274,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.456: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $414,000
                                                                       $414,000
                                                                             $0
                                                                       $414,000
                                                                       $414,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,558
                                                                         $6,217
                                                                         $1,660
                                                                         $4,558
                                                                         $6,094
                                                                         $1,536
 CCT Installation
                                                                        $19,000
                                                                        $20,000
                                                                         $1,127
                                                                        $69,000
                                                                        $55,000
                                                                       $-15,000
 CCT Installation Ancillary Activities
                                                                            $20
                                                                         $1,190
                                                                         $1,170
                                                                            $53
                                                                        $17,000
                                                                        $17,000
 CCT Re-Optimization (Due to ALE)
                                                                         $1,729
                                                                         $4,350
                                                                         $2,621
                                                                        $30,000
                                                                        $85,000
                                                                        $55,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $5
                                                                           $222
                                                                           $217
                                                                            $66
                                                                       $449,000
                                                                       $449,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $47,000
                                                                        $47,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,532
                                                                         $1,532
                                                                             $0
                                                                         $4,062
                                                                         $4,062
 Find and Fix Installation
                                                                             $0
                                                                        $23,000
                                                                        $23,000
                                                                             $0
                                                                       $140,000
                                                                       $140,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $21,000
                                                                        $21,000
                                                                             $0
                                                                        $32,000
                                                                        $32,000
 Total Annual Corrosion Control Technology Costs
                                                                       $440,000
                                                                       $503,000
                                                                        $63,000
                                                                       $518,000
                                                                     $1,250,000
                                                                       $732,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.457: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $878,000
                                                                       $878,000
                                                                             $0
                                                                       $878,000
                                                                       $878,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $6,921
                                                                        $10,000
                                                                         $3,261
                                                                         $6,930
                                                                         $9,965
                                                                         $3,035
 CCT Installation
                                                                        $34,000
                                                                        $32,000
                                                                        $-2,514
                                                                       $103,000
                                                                       $100,000
                                                                        $-2,535
 CCT Installation Ancillary Activities
                                                                           $404
                                                                         $1,587
                                                                         $1,183
                                                                           $819
                                                                         $3,968
                                                                         $3,149
 CCT Re-Optimization (Due to ALE)
                                                                         $6,257
                                                                        $14,000
                                                                         $7,278
                                                                        $70,000
                                                                       $200,000
                                                                       $131,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $311
                                                                        $29,000
                                                                        $29,000
                                                                         $2,455
                                                                       $730,000
                                                                       $727,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $12,000
                                                                        $12,000
                                                                             $0
                                                                        $89,000
                                                                        $89,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $666
                                                                           $666
                                                                             $0
                                                                         $6,771
                                                                         $6,771
 Find and Fix Installation
                                                                             $0
                                                                        $49,000
                                                                        $49,000
                                                                             $0
                                                                       $278,000
                                                                       $278,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $31,000
                                                                        $31,000
                                                                             $0
                                                                        $60,000
                                                                        $60,000
 Total Annual Corrosion Control Technology Costs
                                                                       $926,000
                                                                     $1,058,000
                                                                       $132,000
                                                                     $1,061,000
                                                                     $2,356,000
                                                                     $1,295,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.458: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $1,281,000
                                                                     $1,281,000
                                                                             $0
                                                                     $1,287,000
                                                                     $1,287,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $5,796
                                                                         $8,318
                                                                         $2,522
                                                                         $5,801
                                                                         $8,189
                                                                         $2,388
 CCT Installation
                                                                        $45,000
                                                                        $40,000
                                                                        $-4,243
                                                                        $78,000
                                                                        $76,000
                                                                        $-2,269
 CCT Installation Ancillary Activities
                                                                           $219
                                                                           $661
                                                                           $442
                                                                           $240
                                                                         $1,190
                                                                           $950
 CCT Re-Optimization (Due to ALE)
                                                                        $13,000
                                                                        $34,000
                                                                        $21,000
                                                                       $115,000
                                                                       $266,000
                                                                       $151,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $21
                                                                        $24,000
                                                                        $24,000
                                                                         $2,415
                                                                       $389,000
                                                                       $387,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $22,000
                                                                        $22,000
                                                                             $0
                                                                       $154,000
                                                                       $154,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $790
                                                                           $790
                                                                             $0
                                                                         $5,847
                                                                         $5,847
 Find and Fix Installation
                                                                             $0
                                                                        $61,000
                                                                        $61,000
                                                                             $0
                                                                       $311,000
                                                                       $311,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $27,000
                                                                        $27,000
                                                                             $0
                                                                        $56,000
                                                                        $56,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,345,000
                                                                     $1,499,000
                                                                       $154,000
                                                                     $1,489,000
                                                                     $2,555,000
                                                                     $1,066,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.459: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $3,459,000
                                                                     $3,459,000
                                                                             $0
                                                                     $3,462,000
                                                                     $3,462,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $6,654
                                                                        $10,000
                                                                         $3,788
                                                                         $6,654
                                                                        $10,000
                                                                         $3,601
 CCT Installation
                                                                         $9,502
                                                                           $427
                                                                        $-9,074
                                                                        $43,000
                                                                        $33,000
                                                                       $-10,000
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                            $11
                                                                         $1,719
                                                                         $1,708
 CCT Re-Optimization (Due to ALE)
                                                                        $13,000
                                                                        $89,000
                                                                        $76,000
                                                                       $281,000
                                                                       $516,000
                                                                       $235,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $23
                                                                        $24,000
                                                                        $24,000
                                                                         $2,010
                                                                       $300,000
                                                                       $298,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $88,000
                                                                        $88,000
                                                                             $0
                                                                       $370,000
                                                                       $370,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,264
                                                                         $1,264
                                                                             $0
                                                                         $6,796
                                                                         $6,796
 Find and Fix Installation
                                                                             $0
                                                                        $99,000
                                                                        $99,000
                                                                             $0
                                                                       $439,000
                                                                       $439,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                        $84,000
                                                                        $84,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,489,000
                                                                     $3,810,000
                                                                       $322,000
                                                                     $3,794,000
                                                                     $5,223,000
                                                                     $1,428,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.460: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $2,581,000
                                                                     $2,581,000
                                                                             $0
                                                                     $2,579,000
                                                                     $2,579,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $2,113
                                                                         $3,717
                                                                         $1,605
                                                                         $2,113
                                                                         $3,700
                                                                         $1,587
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $22,000
                                                                        $55,000
                                                                        $33,000
                                                                       $102,000
                                                                       $179,000
                                                                        $77,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $8,277
                                                                         $8,277
                                                                             $0
                                                                        $44,000
                                                                        $44,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $37,000
                                                                        $37,000
                                                                             $0
                                                                       $161,000
                                                                       $161,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $296
                                                                           $296
                                                                             $0
                                                                         $2,020
                                                                         $2,020
 Find and Fix Installation
                                                                             $0
                                                                        $45,000
                                                                        $45,000
                                                                             $0
                                                                       $108,000
                                                                       $108,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $17,000
                                                                        $17,000
                                                                             $0
                                                                        $27,000
                                                                        $27,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,605,000
                                                                     $2,748,000
                                                                       $143,000
                                                                     $2,684,000
                                                                     $3,103,000
                                                                       $419,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.461: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                    $10,260,000
                                                                    $10,260,000
                                                                             $0
                                                                    $10,275,000
                                                                    $10,275,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $2,509
                                                                         $5,094
                                                                         $2,585
                                                                         $2,509
                                                                         $5,057
                                                                         $2,548
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $90,000
                                                                       $143,000
                                                                        $53,000
                                                                       $416,000
                                                                       $813,000
                                                                       $397,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $13,000
                                                                        $13,000
                                                                             $0
                                                                       $107,000
                                                                       $107,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $156,000
                                                                       $156,000
                                                                             $0
                                                                       $606,000
                                                                       $606,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $598
                                                                           $598
                                                                             $0
                                                                         $2,691
                                                                         $2,691
 Find and Fix Installation
                                                                             $0
                                                                       $194,000
                                                                       $194,000
                                                                             $0
                                                                       $482,000
                                                                       $482,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                        $71,000
                                                                        $71,000
 Total Annual Corrosion Control Technology Costs
                                                                    $10,353,000
                                                                    $10,811,000
                                                                       $458,000
                                                                    $10,694,000
                                                                    $12,363,000
                                                                     $1,669,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.462: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $145,000
                                                                       $145,000
                                                                             $0
                                                                       $145,000
                                                                       $145,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                            $71
                                                                            $94
                                                                            $23
                                                                            $71
                                                                            $94
                                                                            $23
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                             $0
                                                                           $679
                                                                           $679
                                                                             $0
                                                                           $643
                                                                           $643
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                           $707
                                                                           $707
                                                                             $0
                                                                           $491
                                                                           $491
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                           $815
                                                                           $815
                                                                             $0
                                                                           $667
                                                                           $667
 Find and Fix Ancillary Activities
                                                                             $0
                                                                           $524
                                                                           $524
                                                                             $0
                                                                           $527
                                                                           $527
 Total Annual Corrosion Control Technology Costs
                                                                       $145,000
                                                                       $148,000
                                                                         $2,748
                                                                       $145,000
                                                                       $148,000
                                                                         $2,351
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.463: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                       $601,000
                                                                       $601,000
                                                                             $0
                                                                       $601,000
                                                                       $601,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $21,000
                                                                        $25,000
                                                                         $4,228
                                                                        $21,000
                                                                        $24,000
                                                                         $3,787
 CCT Installation
                                                                       $149,000
                                                                           $474
                                                                      $-148,000
                                                                       $572,000
                                                                             $0
                                                                      $-572,000
 CCT Installation Ancillary Activities
                                                                           $135
                                                                             $0
                                                                          $-135
                                                                           $473
                                                                             $0
                                                                          $-473
 CCT Re-Optimization (Due to ALE)
                                                                         $1,102
                                                                             $0
                                                                        $-1,102
                                                                        $53,000
                                                                             $0
                                                                       $-53,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                           $128
                                                                             $0
                                                                          $-128
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $15,000
                                                                        $15,000
                                                                             $0
                                                                        $45,000
                                                                        $45,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,665
                                                                         $1,665
                                                                             $0
                                                                         $3,663
                                                                         $3,663
 Find and Fix Installation
                                                                             $0
                                                                         $4,220
                                                                         $4,220
                                                                             $0
                                                                         $7,768
                                                                         $7,768
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $96,000
                                                                        $96,000
                                                                             $0
                                                                        $98,000
                                                                        $98,000
 Total Annual Corrosion Control Technology Costs
                                                                       $772,000
                                                                       $744,000
                                                                       $-28,000
                                                                     $1,247,000
                                                                       $780,000
                                                                      $-467,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.464: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                     $4,021,000
                                                                     $4,021,000
                                                                             $0
                                                                     $4,021,000
                                                                     $4,021,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $76,000
                                                                        $92,000
                                                                        $16,000
                                                                        $76,000
                                                                        $91,000
                                                                        $15,000
 CCT Installation
                                                                       $715,000
                                                                       $341,000
                                                                      $-374,000
                                                                     $2,992,000
                                                                     $1,021,000
                                                                    $-1,972,000
 CCT Installation Ancillary Activities
                                                                           $574
                                                                        $22,000
                                                                        $21,000
                                                                         $1,782
                                                                        $66,000
                                                                        $64,000
 CCT Re-Optimization (Due to ALE)
                                                                         $3,505
                                                                        $14,000
                                                                        $10,000
                                                                       $262,000
                                                                       $276,000
                                                                        $14,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $14
                                                                             $0
                                                                           $-14
                                                                           $500
                                                                     $1,336,000
                                                                     $1,336,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $129,000
                                                                       $129,000
                                                                             $0
                                                                       $349,000
                                                                       $349,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                        $14,000
                                                                        $14,000
                                                                             $0
                                                                        $30,000
                                                                        $30,000
 Find and Fix Installation
                                                                             $0
                                                                       $171,000
                                                                       $171,000
                                                                             $0
                                                                       $732,000
                                                                       $732,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $344,000
                                                                       $344,000
                                                                             $0
                                                                       $396,000
                                                                       $396,000
 Total Annual Corrosion Control Technology Costs
                                                                     $4,817,000
                                                                     $5,148,000
                                                                       $331,000
                                                                     $7,355,000
                                                                     $8,319,000
                                                                       $964,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.465: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                     $4,522,000
                                                                     $4,522,000
                                                                             $0
                                                                     $4,524,000
                                                                     $4,524,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $46,000
                                                                        $57,000
                                                                        $11,000
                                                                        $46,000
                                                                        $57,000
                                                                        $10,000
 CCT Installation
                                                                       $628,000
                                                                       $530,000
                                                                       $-98,000
                                                                     $1,833,000
                                                                     $1,477,000
                                                                      $-356,000
 CCT Installation Ancillary Activities
                                                                           $338
                                                                        $19,000
                                                                        $19,000
                                                                           $938
                                                                       $423,000
                                                                       $422,000
 CCT Re-Optimization (Due to ALE)
                                                                        $13,000
                                                                        $25,000
                                                                        $12,000
                                                                       $323,000
                                                                       $905,000
                                                                       $582,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $44
                                                                         $8,592
                                                                         $8,548
                                                                           $429
                                                                     $2,936,000
                                                                     $2,935,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $79,000
                                                                        $79,000
                                                                             $0
                                                                       $406,000
                                                                       $406,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $6,493
                                                                         $6,493
                                                                             $0
                                                                        $27,000
                                                                        $27,000
 Find and Fix Installation
                                                                             $0
                                                                       $216,000
                                                                       $216,000
                                                                             $0
                                                                     $1,351,000
                                                                     $1,351,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $232,000
                                                                       $232,000
                                                                             $0
                                                                       $346,000
                                                                       $346,000
 Total Annual Corrosion Control Technology Costs
                                                                     $5,210,000
                                                                     $5,695,000
                                                                       $485,000
                                                                     $6,728,000
                                                                    $12,451,000
                                                                     $5,724,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.466: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $11,220,000
                                                                    $11,220,000
                                                                             $0
                                                                    $11,230,000
                                                                    $11,230,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $81,000
                                                                       $106,000
                                                                        $25,000
                                                                        $81,000
                                                                       $105,000
                                                                        $24,000
 CCT Installation
                                                                     $1,078,000
                                                                     $1,015,000
                                                                       $-63,000
                                                                     $3,671,000
                                                                     $3,410,000
                                                                      $-261,000
 CCT Installation Ancillary Activities
                                                                        $11,000
                                                                        $28,000
                                                                        $17,000
                                                                        $30,000
                                                                        $80,000
                                                                        $50,000
 CCT Re-Optimization (Due to ALE)
                                                                        $49,000
                                                                       $115,000
                                                                        $66,000
                                                                       $657,000
                                                                     $2,047,000
                                                                     $1,390,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $1,853
                                                                       $247,000
                                                                       $245,000
                                                                        $16,000
                                                                     $5,715,000
                                                                     $5,700,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $131,000
                                                                       $131,000
                                                                             $0
                                                                       $873,000
                                                                       $873,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $8,990
                                                                         $8,990
                                                                             $0
                                                                        $45,000
                                                                        $45,000
 Find and Fix Installation
                                                                             $0
                                                                       $491,000
                                                                       $491,000
                                                                             $0
                                                                     $2,893,000
                                                                     $2,893,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $466,000
                                                                       $466,000
                                                                             $0
                                                                       $774,000
                                                                       $774,000
 Total Annual Corrosion Control Technology Costs
                                                                    $12,440,000
                                                                    $13,828,000
                                                                     $1,388,000
                                                                    $15,684,000
                                                                    $27,171,000
                                                                    $11,487,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.467: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $13,551,000
                                                                    $13,551,000
                                                                             $0
                                                                    $13,584,000
                                                                    $13,584,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $61,000
                                                                        $77,000
                                                                        $17,000
                                                                        $61,000
                                                                        $77,000
                                                                        $16,000
 CCT Installation
                                                                     $1,196,000
                                                                     $1,260,000
                                                                        $64,000
                                                                     $3,353,000
                                                                     $3,100,000
                                                                      $-252,000
 CCT Installation Ancillary Activities
                                                                        $12,000
                                                                        $14,000
                                                                         $1,652
                                                                        $27,000
                                                                        $38,000
                                                                        $11,000
 CCT Re-Optimization (Due to ALE)
                                                                       $216,000
                                                                       $356,000
                                                                       $140,000
                                                                       $870,000
                                                                     $2,419,000
                                                                     $1,549,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $2,739
                                                                       $176,000
                                                                       $173,000
                                                                        $13,000
                                                                     $2,662,000
                                                                     $2,650,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $121,000
                                                                       $121,000
                                                                             $0
                                                                     $1,277,000
                                                                     $1,277,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,556
                                                                         $3,556
                                                                             $0
                                                                        $40,000
                                                                        $40,000
 Find and Fix Installation
                                                                             $0
                                                                       $681,000
                                                                       $681,000
                                                                             $0
                                                                     $2,744,000
                                                                     $2,744,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $365,000
                                                                       $365,000
                                                                             $0
                                                                       $656,000
                                                                       $656,000
 Total Annual Corrosion Control Technology Costs
                                                                    $15,038,000
                                                                    $16,604,000
                                                                     $1,566,000
                                                                    $17,906,000
                                                                    $26,597,000
                                                                     $8,691,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.468: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $21,838,000
                                                                    $21,838,000
                                                                             $0
                                                                    $21,865,000
                                                                    $21,865,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $21,000
                                                                        $33,000
                                                                        $12,000
                                                                        $21,000
                                                                        $33,000
                                                                        $12,000
 CCT Installation
                                                                       $872,000
                                                                       $920,000
                                                                        $49,000
                                                                     $2,691,000
                                                                     $2,786,000
                                                                        $95,000
 CCT Installation Ancillary Activities
                                                                         $4,432
                                                                         $6,249
                                                                         $1,817
                                                                        $25,000
                                                                        $33,000
                                                                         $7,894
 CCT Re-Optimization (Due to ALE)
                                                                       $193,000
                                                                       $533,000
                                                                       $340,000
                                                                     $1,339,000
                                                                     $3,233,000
                                                                     $1,894,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $723
                                                                       $137,000
                                                                       $136,000
                                                                         $7,502
                                                                     $1,212,000
                                                                     $1,205,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $346,000
                                                                       $346,000
                                                                             $0
                                                                     $1,766,000
                                                                     $1,766,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $5,215
                                                                         $5,215
                                                                             $0
                                                                        $21,000
                                                                        $21,000
 Find and Fix Installation
                                                                             $0
                                                                       $541,000
                                                                       $541,000
                                                                             $0
                                                                     $1,943,000
                                                                     $1,943,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $248,000
                                                                       $248,000
                                                                             $0
                                                                       $480,000
                                                                       $480,000
 Total Annual Corrosion Control Technology Costs
                                                                    $22,929,000
                                                                    $24,608,000
                                                                     $1,679,000
                                                                    $25,948,000
                                                                    $33,372,000
                                                                     $7,424,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.469: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $15,762,000
                                                                    $15,762,000
                                                                             $0
                                                                    $15,753,000
                                                                    $15,753,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $3,216
                                                                         $8,303
                                                                         $5,087
                                                                         $3,216
                                                                         $8,287
                                                                         $5,071
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                       $159,000
                                                                       $318,000
                                                                       $159,000
                                                                       $851,000
                                                                     $1,294,000
                                                                       $443,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $43,000
                                                                        $43,000
                                                                             $0
                                                                       $179,000
                                                                       $179,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $162,000
                                                                       $162,000
                                                                             $0
                                                                       $956,000
                                                                       $956,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,301
                                                                         $1,301
                                                                             $0
                                                                         $7,512
                                                                         $7,512
 Find and Fix Installation
                                                                             $0
                                                                       $133,000
                                                                       $133,000
                                                                             $0
                                                                       $347,000
                                                                       $347,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $60,000
                                                                        $60,000
                                                                             $0
                                                                        $93,000
                                                                        $93,000
 Total Annual Corrosion Control Technology Costs
                                                                    $15,925,000
                                                                    $16,489,000
                                                                       $564,000
                                                                    $16,607,000
                                                                    $18,638,000
                                                                     $2,031,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.470: National Annualized Corrosion Control Technology Costs - Public CWS of Size 100,001 to 1,000,000 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)
                                                                    $13,210,000
                                                                    $13,210,000
                                                                             $0
                                                                    $13,236,000
                                                                    $13,236,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,637
                                                                         $4,011
                                                                         $2,374
                                                                         $1,637
                                                                         $3,973
                                                                         $2,336
 CCT Installation
                                                                        $18,000
                                                                        $19,000
                                                                           $752
                                                                        $48,000
                                                                        $50,000
                                                                         $2,320
 CCT Installation Ancillary Activities
                                                                             $0
                                                                            $16
                                                                            $16
                                                                             $0
                                                                            $78
                                                                            $78
 CCT Re-Optimization (Due to ALE)
                                                                       $113,000
                                                                       $209,000
                                                                        $97,000
                                                                       $606,000
                                                                     $1,170,000
                                                                       $563,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $12,000
                                                                        $12,000
                                                                             $0
                                                                       $120,000
                                                                       $120,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $119,000
                                                                       $119,000
                                                                             $0
                                                                       $803,000
                                                                       $803,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $506
                                                                           $506
                                                                             $0
                                                                         $2,916
                                                                         $2,916
 Find and Fix Installation
                                                                             $0
                                                                       $108,000
                                                                       $108,000
                                                                             $0
                                                                       $453,000
                                                                       $453,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $42,000
                                                                        $42,000
                                                                             $0
                                                                        $77,000
                                                                        $77,000
 Total Annual Corrosion Control Technology Costs
                                                                    $13,342,000
                                                                    $13,723,000
                                                                       $380,000
                                                                    $13,892,000
                                                                    $15,917,000
                                                                     $2,025,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.471: National Annualized Corrosion Control Technology Costs - Public CWS of Size Greater than 1,000,000 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)
                                                                     $1,311,000
                                                                     $1,311,000
                                                                             $0
                                                                     $1,311,000
                                                                     $1,311,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $181
                                                                           $261
                                                                            $80
                                                                           $181
                                                                           $261
                                                                            $80
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                           $365
                                                                         $2,451
                                                                         $2,086
                                                                           $446
                                                                         $2,709
                                                                         $2,264
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $2,034
                                                                         $2,034
                                                                             $0
                                                                         $1,957
                                                                         $1,957
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                         $4,909
                                                                         $4,909
                                                                             $0
                                                                         $4,734
                                                                         $4,734
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $1,073
                                                                         $1,073
                                                                             $0
                                                                         $1,081
                                                                         $1,081
 Total Annual Corrosion Control Technology Costs
                                                                     $1,312,000
                                                                     $1,322,000
                                                                        $10,000
                                                                     $1,312,000
                                                                     $1,322,000
                                                                        $10,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.472: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                       $678,000
                                                                       $678,000
                                                                             $0
                                                                       $678,000
                                                                       $678,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $8,328
                                                                        $12,000
                                                                         $3,619
                                                                         $8,319
                                                                        $12,000
                                                                         $3,454
 CCT Installation
                                                                        $36,000
                                                                            $56
                                                                       $-36,000
                                                                       $125,000
                                                                             $9
                                                                      $-125,000
 CCT Installation Ancillary Activities
                                                                            $39
                                                                             $0
                                                                           $-39
                                                                           $119
                                                                             $0
                                                                          $-119
 CCT Re-Optimization (Due to ALE)
                                                                         $1,143
                                                                            $66
                                                                        $-1,076
                                                                        $45,000
                                                                         $2,023
                                                                       $-43,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $5
                                                                             $0
                                                                            $-5
                                                                           $129
                                                                             $0
                                                                          $-129
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $18,000
                                                                        $18,000
                                                                             $0
                                                                        $64,000
                                                                        $64,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,330
                                                                         $3,330
                                                                             $0
                                                                         $7,658
                                                                         $7,658
 Find and Fix Installation
                                                                             $0
                                                                         $1,770
                                                                         $1,770
                                                                             $0
                                                                         $5,551
                                                                         $5,551
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                        $36,000
                                                                        $36,000
 Total Annual Corrosion Control Technology Costs
                                                                       $723,000
                                                                       $751,000
                                                                        $29,000
                                                                       $856,000
                                                                       $804,000
                                                                       $-52,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.473: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                     $1,960,000
                                                                     $1,960,000
                                                                             $0
                                                                     $1,960,000
                                                                     $1,960,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $23,000
                                                                        $33,000
                                                                         $9,310
                                                                        $23,000
                                                                        $32,000
                                                                         $8,866
 CCT Installation
                                                                       $132,000
                                                                        $92,000
                                                                       $-40,000
                                                                       $376,000
                                                                       $174,000
                                                                      $-202,000
 CCT Installation Ancillary Activities
                                                                           $131
                                                                         $5,158
                                                                         $5,027
                                                                           $317
                                                                         $9,125
                                                                         $8,808
 CCT Re-Optimization (Due to ALE)
                                                                         $4,989