$53,000
                                                                         $2,931
 CCT Installation Ancillary Activities
                                                                             $0
                                                                            $11
                                                                            $11
                                                                             $0
                                                                            $57
                                                                            $57
 CCT Re-Optimization (Due to ALE)
                                                                       $123,000
                                                                       $236,000
                                                                       $113,000
                                                                       $612,000
                                                                     $1,211,000
                                                                       $599,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $8,791
                                                                         $8,791
                                                                             $0
                                                                        $91,000
                                                                        $91,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $132,000
                                                                       $132,000
                                                                             $0
                                                                       $816,000
                                                                       $816,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $355
                                                                           $355
                                                                             $0
                                                                         $2,047
                                                                         $2,047
 Find and Fix Installation
                                                                             $0
                                                                       $136,000
                                                                       $136,000
                                                                             $0
                                                                       $518,000
                                                                       $518,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $44,000
                                                                        $44,000
                                                                             $0
                                                                        $77,000
                                                                        $77,000
 Total Annual Corrosion Control Technology Costs
                                                                    $13,994,000
                                                                    $14,431,000
                                                                       $437,000
                                                                    $14,541,000
                                                                    $16,649,000
                                                                     $2,108,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.416: National Annualized Corrosion Control Technology Costs - Public CWS of Size Greater than 1,000,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,656,000
                                                                     $1,656,000
                                                                             $0
                                                                     $1,656,000
                                                                     $1,656,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $190
                                                                           $271
                                                                            $81
                                                                           $190
                                                                           $271
                                                                            $81
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                           $570
                                                                         $4,655
                                                                         $4,085
                                                                           $647
                                                                         $4,683
                                                                         $4,036
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $3,707
                                                                         $3,707
                                                                             $0
                                                                         $3,532
                                                                         $3,532
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                        $10,000
                                                                        $10,000
                                                                             $0
                                                                         $9,496
                                                                         $9,496
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $1,084
                                                                         $1,084
                                                                             $0
                                                                         $1,091
                                                                         $1,091
 Total Annual Corrosion Control Technology Costs
                                                                     $1,656,000
                                                                     $1,675,000
                                                                        $19,000
                                                                     $1,656,000
                                                                     $1,675,000
                                                                        $18,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.417: National Annualized Corrosion Control Technology Costs - Public CWS of Size 100 and Fewer Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $710,000
                                                                       $710,000
                                                                             $0
                                                                       $710,000
                                                                       $710,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $8,712
                                                                        $12,000
                                                                         $3,735
                                                                         $8,704
                                                                        $12,000
                                                                         $3,586
 CCT Installation
                                                                        $38,000
                                                                            $97
                                                                       $-38,000
                                                                       $125,000
                                                                            $16
                                                                      $-125,000
 CCT Installation Ancillary Activities
                                                                            $28
                                                                             $0
                                                                           $-28
                                                                            $84
                                                                             $0
                                                                           $-84
 CCT Re-Optimization (Due to ALE)
                                                                         $1,071
                                                                            $88
                                                                          $-983
                                                                        $37,000
                                                                         $2,134
                                                                       $-35,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $3
                                                                             $0
                                                                            $-3
                                                                            $91
                                                                             $0
                                                                           $-91
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $16,000
                                                                        $16,000
                                                                             $0
                                                                        $55,000
                                                                        $55,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,337
                                                                         $2,337
                                                                             $0
                                                                         $5,375
                                                                         $5,375
 Find and Fix Installation
                                                                             $0
                                                                         $2,388
                                                                         $2,388
                                                                             $0
                                                                         $6,261
                                                                         $6,261
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                        $36,000
                                                                        $36,000
 Total Annual Corrosion Control Technology Costs
                                                                       $759,000
                                                                       $784,000
                                                                        $25,000
                                                                       $882,000
                                                                       $828,000
                                                                       $-54,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.418: National Annualized Corrosion Control Technology Costs - Public CWS of Size 101 to 500 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $2,054,000
                                                                     $2,054,000
                                                                             $0
                                                                     $2,054,000
                                                                     $2,054,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $24,000
                                                                        $34,000
                                                                         $9,651
                                                                        $24,000
                                                                        $34,000
                                                                         $9,305
 CCT Installation
                                                                       $140,000
                                                                       $100,000
                                                                       $-41,000
                                                                       $378,000
                                                                       $175,000
                                                                      $-203,000
 CCT Installation Ancillary Activities
                                                                            $92
                                                                         $3,760
                                                                         $3,669
                                                                           $223
                                                                         $6,653
                                                                         $6,430
 CCT Re-Optimization (Due to ALE)
                                                                         $5,046
                                                                        $16,000
                                                                        $11,000
                                                                       $124,000
                                                                       $192,000
                                                                        $68,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $9
                                                                             $0
                                                                            $-9
                                                                           $248
                                                                       $818,000
                                                                       $818,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $50,000
                                                                        $50,000
                                                                             $0
                                                                       $179,000
                                                                       $179,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $5,452
                                                                         $5,452
                                                                             $0
                                                                        $14,000
                                                                        $14,000
 Find and Fix Installation
                                                                             $0
                                                                        $65,000
                                                                        $65,000
                                                                             $0
                                                                       $316,000
                                                                       $316,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $111,000
                                                                       $111,000
                                                                             $0
                                                                       $114,000
                                                                       $114,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,224,000
                                                                     $2,440,000
                                                                       $216,000
                                                                     $2,581,000
                                                                     $3,904,000
                                                                     $1,323,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.419: National Annualized Corrosion Control Technology Costs - Public CWS of Size 501 to 1,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,989,000
                                                                     $1,989,000
                                                                             $0
                                                                     $1,990,000
                                                                     $1,990,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $19,000
                                                                        $27,000
                                                                         $7,375
                                                                        $19,000
                                                                        $26,000
                                                                         $7,098
 CCT Installation
                                                                        $93,000
                                                                       $101,000
                                                                         $7,542
                                                                       $320,000
                                                                       $273,000
                                                                       $-47,000
 CCT Installation Ancillary Activities
                                                                            $51
                                                                         $3,066
                                                                         $3,015
                                                                           $143
                                                                        $80,000
                                                                        $80,000
 CCT Re-Optimization (Due to ALE)
                                                                         $9,702
                                                                        $24,000
                                                                        $15,000
                                                                       $100,000
                                                                       $378,000
                                                                       $278,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $21
                                                                        $14,000
                                                                        $14,000
                                                                           $173
                                                                     $1,471,000
                                                                     $1,471,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $35,000
                                                                        $35,000
                                                                             $0
                                                                       $177,000
                                                                       $177,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,617
                                                                         $2,617
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Find and Fix Installation
                                                                             $0
                                                                        $84,000
                                                                        $84,000
                                                                             $0
                                                                       $630,000
                                                                       $630,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $84,000
                                                                        $84,000
                                                                             $0
                                                                       $119,000
                                                                       $119,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,112,000
                                                                     $2,365,000
                                                                       $253,000
                                                                     $2,430,000
                                                                     $5,157,000
                                                                     $2,727,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.420: National Annualized Corrosion Control Technology Costs - Public CWS of Size 1,001 to 3,300 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $7,204,000
                                                                     $7,204,000
                                                                             $0
                                                                     $7,213,000
                                                                     $7,213,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $54,000
                                                                        $80,000
                                                                        $26,000
                                                                        $54,000
                                                                        $79,000
                                                                        $25,000
 CCT Installation
                                                                       $293,000
                                                                       $304,000
                                                                        $11,000
                                                                       $701,000
                                                                       $716,000
                                                                        $15,000
 CCT Installation Ancillary Activities
                                                                         $2,303
                                                                         $6,942
                                                                         $4,639
                                                                         $5,397
                                                                        $27,000
                                                                        $21,000
 CCT Re-Optimization (Due to ALE)
                                                                        $59,000
                                                                       $166,000
                                                                       $107,000
                                                                       $470,000
                                                                     $1,523,000
                                                                     $1,053,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $1,463
                                                                       $190,000
                                                                       $188,000
                                                                        $11,000
                                                                     $3,998,000
                                                                     $3,987,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $150,000
                                                                       $150,000
                                                                             $0
                                                                       $673,000
                                                                       $673,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $6,543
                                                                         $6,543
                                                                             $0
                                                                        $31,000
                                                                        $31,000
 Find and Fix Installation
                                                                             $0
                                                                       $385,000
                                                                       $385,000
                                                                             $0
                                                                     $2,054,000
                                                                     $2,054,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $237,000
                                                                       $237,000
                                                                             $0
                                                                       $391,000
                                                                       $391,000
 Total Annual Corrosion Control Technology Costs
                                                                     $7,614,000
                                                                     $8,729,000
                                                                     $1,115,000
                                                                     $8,454,000
                                                                    $16,706,000
                                                                     $8,252,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.421: National Annualized Corrosion Control Technology Costs - Public CWS of Size 3,301 to 10,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $16,662,000
                                                                    $16,662,000
                                                                             $0
                                                                    $16,713,000
                                                                    $16,713,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $80,000
                                                                       $112,000
                                                                        $32,000
                                                                        $80,000
                                                                       $111,000
                                                                        $31,000
 CCT Installation
                                                                       $346,000
                                                                       $363,000
                                                                        $17,000
                                                                     $1,009,000
                                                                     $1,040,000
                                                                        $31,000
 CCT Installation Ancillary Activities
                                                                         $3,427
                                                                         $4,146
                                                                           $719
                                                                         $7,329
                                                                        $12,000
                                                                         $4,723
 CCT Re-Optimization (Due to ALE)
                                                                       $245,000
                                                                       $442,000
                                                                       $198,000
                                                                     $1,100,000
                                                                     $3,045,000
                                                                     $1,945,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $2,597
                                                                       $172,000
                                                                       $169,000
                                                                        $15,000
                                                                     $3,331,000
                                                                     $3,316,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $325,000
                                                                       $325,000
                                                                             $0
                                                                     $1,500,000
                                                                     $1,500,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $7,209
                                                                         $7,209
                                                                             $0
                                                                        $46,000
                                                                        $46,000
 Find and Fix Installation
                                                                             $0
                                                                       $727,000
                                                                       $727,000
                                                                             $0
                                                                     $3,675,000
                                                                     $3,675,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $318,000
                                                                       $318,000
                                                                             $0
                                                                       $572,000
                                                                       $572,000
 Total Annual Corrosion Control Technology Costs
                                                                    $17,339,000
                                                                    $19,131,000
                                                                     $1,793,000
                                                                    $18,924,000
                                                                    $30,045,000
                                                                    $11,121,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.422: National Annualized Corrosion Control Technology Costs - Public CWS of Size 10,001 to 50,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $40,018,000
                                                                    $40,018,000
                                                                             $0
                                                                    $40,041,000
                                                                    $40,041,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $75,000
                                                                       $116,000
                                                                        $41,000
                                                                        $75,000
                                                                       $115,000
                                                                        $40,000
 CCT Installation
                                                                       $549,000
                                                                       $491,000
                                                                       $-58,000
                                                                     $1,344,000
                                                                     $1,289,000
                                                                       $-55,000
 CCT Installation Ancillary Activities
                                                                         $6,539
                                                                         $2,603
                                                                        $-3,936
                                                                        $17,000
                                                                        $15,000
                                                                        $-1,965
 CCT Re-Optimization (Due to ALE)
                                                                       $288,000
                                                                     $1,416,000
                                                                     $1,127,000
                                                                     $2,412,000
                                                                     $5,939,000
                                                                     $3,527,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $1,526
                                                                       $309,000
                                                                       $307,000
                                                                        $13,000
                                                                     $2,380,000
                                                                     $2,367,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                     $1,057,000
                                                                     $1,057,000
                                                                             $0
                                                                     $3,070,000
                                                                     $3,070,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $7,985
                                                                         $7,985
                                                                             $0
                                                                        $43,000
                                                                        $43,000
 Find and Fix Installation
                                                                             $0
                                                                     $1,446,000
                                                                     $1,446,000
                                                                             $0
                                                                     $4,754,000
                                                                     $4,754,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $411,000
                                                                       $411,000
                                                                             $0
                                                                       $750,000
                                                                       $750,000
 Total Annual Corrosion Control Technology Costs
                                                                    $40,937,000
                                                                    $45,273,000
                                                                     $4,336,000
                                                                    $43,903,000
                                                                    $58,398,000
                                                                    $14,495,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.423: National Annualized Corrosion Control Technology Costs - Public CWS of Size 50,001 to 100,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $25,243,000
                                                                    $25,243,000
                                                                             $0
                                                                    $25,216,000
                                                                    $25,216,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $21,000
                                                                        $36,000
                                                                        $15,000
                                                                        $21,000
                                                                        $36,000
                                                                        $15,000
 CCT Installation
                                                                         $9,947
                                                                             $0
                                                                        $-9,947
                                                                        $57,000
                                                                        $49,000
                                                                        $-8,169
 CCT Installation Ancillary Activities
                                                                             $0
                                                                            $22
                                                                            $22
                                                                             $0
                                                                           $289
                                                                           $289
 CCT Re-Optimization (Due to ALE)
                                                                       $214,000
                                                                       $677,000
                                                                       $463,000
                                                                     $1,103,000
                                                                     $1,838,000
                                                                       $735,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $79,000
                                                                        $79,000
                                                                             $0
                                                                       $362,000
                                                                       $362,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $453,000
                                                                       $453,000
                                                                             $0
                                                                     $1,478,000
                                                                     $1,478,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,282
                                                                         $2,282
                                                                             $0
                                                                        $13,000
                                                                        $13,000
 Find and Fix Installation
                                                                             $0
                                                                       $516,000
                                                                       $516,000
                                                                             $0
                                                                     $1,320,000
                                                                     $1,320,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $176,000
                                                                       $176,000
                                                                             $0
                                                                       $253,000
                                                                       $253,000
 Total Annual Corrosion Control Technology Costs
                                                                    $25,488,000
                                                                    $27,182,000
                                                                     $1,695,000
                                                                    $26,397,000
                                                                    $30,567,000
                                                                     $4,169,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.424: National Annualized Corrosion Control Technology Costs - Public CWS of Size 100,001 to 1,000,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $59,915,000
                                                                    $59,915,000
                                                                             $0
                                                                    $60,022,000
                                                                    $60,022,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $16,000
                                                                        $33,000
                                                                        $17,000
                                                                        $16,000
                                                                        $33,000
                                                                        $17,000
 CCT Installation
                                                                         $5,319
                                                                             $0
                                                                        $-5,319
                                                                        $25,000
                                                                        $20,000
                                                                        $-5,388
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                            $39
                                                                            $39
 CCT Re-Optimization (Due to ALE)
                                                                       $486,000
                                                                     $1,144,000
                                                                       $658,000
                                                                     $2,600,000
                                                                     $5,268,000
                                                                     $2,668,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $61,000
                                                                        $61,000
                                                                             $0
                                                                       $536,000
                                                                       $536,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                     $1,002,000
                                                                     $1,002,000
                                                                             $0
                                                                     $3,450,000
                                                                     $3,450,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,948
                                                                         $1,948
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Find and Fix Installation
                                                                             $0
                                                                       $802,000
                                                                       $802,000
                                                                             $0
                                                                     $3,130,000
                                                                     $3,130,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $260,000
                                                                       $260,000
                                                                             $0
                                                                       $456,000
                                                                       $456,000
 Total Annual Corrosion Control Technology Costs
                                                                    $60,423,000
                                                                    $63,220,000
                                                                     $2,797,000
                                                                    $62,663,000
                                                                    $72,925,000
                                                                    $10,262,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.425: National Annualized Corrosion Control Technology Costs - Public CWS of Size Greater than 1,000,000 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $32,447,000
                                                                    $32,447,000
                                                                             $0
                                                                    $32,473,000
                                                                    $32,473,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,590
                                                                         $2,657
                                                                         $1,067
                                                                         $1,590
                                                                         $2,657
                                                                         $1,067
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                         $5,590
                                                                         $5,590
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $62,000
                                                                       $364,000
                                                                       $302,000
                                                                        $64,000
                                                                       $474,000
                                                                       $410,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $370,000
                                                                       $370,000
                                                                             $0
                                                                       $352,000
                                                                       $352,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                       $200,000
                                                                       $200,000
                                                                             $0
                                                                       $223,000
                                                                       $223,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $9,605
                                                                         $9,605
                                                                             $0
                                                                         $9,669
                                                                         $9,669
 Total Annual Corrosion Control Technology Costs
                                                                    $32,511,000
                                                                    $33,393,000
                                                                       $882,000
                                                                    $32,539,000
                                                                    $33,540,000
                                                                     $1,001,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.426: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 100 and Fewer Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $1,970,000
                                                                     $1,970,000
                                                                             $0
                                                                     $1,970,000
                                                                     $1,970,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $147,000
                                                                       $163,000
                                                                        $16,000
                                                                       $146,000
                                                                       $160,000
                                                                        $14,000
 CCT Installation
                                                                     $1,170,000
                                                                             $0
                                                                    $-1,170,000
                                                                     $3,288,000
                                                                             $0
                                                                    $-3,288,000
 CCT Installation Ancillary Activities
                                                                           $857
                                                                             $0
                                                                          $-857
                                                                         $2,146
                                                                             $0
                                                                        $-2,146
 CCT Re-Optimization (Due to ALE)
                                                                        $13,000
                                                                           $493
                                                                       $-12,000
                                                                        $86,000
                                                                             $0
                                                                       $-86,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $38
                                                                             $0
                                                                           $-38
                                                                           $204
                                                                             $0
                                                                          $-204
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $13,000
                                                                        $13,000
                                                                             $0
                                                                       $105,000
                                                                       $105,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $935
                                                                           $935
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Find and Fix Installation
                                                                             $0
                                                                         $3,840
                                                                         $3,840
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $258,000
                                                                       $258,000
                                                                             $0
                                                                       $268,000
                                                                       $268,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,301,000
                                                                     $2,409,000
                                                                      $-892,000
                                                                     $5,493,000
                                                                     $2,544,000
                                                                    $-2,949,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.427: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 101 to 500 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $2,528,000
                                                                     $2,528,000
                                                                             $0
                                                                     $2,528,000
                                                                     $2,528,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                       $121,000
                                                                       $137,000
                                                                        $16,000
                                                                       $121,000
                                                                       $135,000
                                                                        $14,000
 CCT Installation
                                                                       $821,000
                                                                             $0
                                                                      $-821,000
                                                                     $2,537,000
                                                                             $0
                                                                    $-2,537,000
 CCT Installation Ancillary Activities
                                                                           $587
                                                                             $0
                                                                          $-587
                                                                         $1,677
                                                                             $0
                                                                        $-1,677
 CCT Re-Optimization (Due to ALE)
                                                                        $22,000
                                                                         $3,710
                                                                       $-19,000
                                                                       $113,000
                                                                         $1,671
                                                                      $-111,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $76
                                                                             $0
                                                                           $-76
                                                                           $246
                                                                           $281
                                                                            $34
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                       $125,000
                                                                       $125,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $467
                                                                           $467
                                                                             $0
                                                                        $13,000
                                                                        $13,000
 Find and Fix Installation
                                                                             $0
                                                                         $6,379
                                                                         $6,379
                                                                             $0
                                                                        $69,000
                                                                        $69,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $210,000
                                                                       $210,000
                                                                             $0
                                                                       $225,000
                                                                       $225,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,493,000
                                                                     $2,897,000
                                                                      $-596,000
                                                                     $5,301,000
                                                                     $3,098,000
                                                                    $-2,203,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.428: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 501 to 1,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $906,000
                                                                       $906,000
                                                                             $0
                                                                       $906,000
                                                                       $906,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $33,000
                                                                        $38,000
                                                                         $4,338
                                                                        $33,000
                                                                        $37,000
                                                                         $3,990
 CCT Installation
                                                                       $247,000
                                                                         $2,526
                                                                      $-244,000
                                                                       $712,000
                                                                         $1,035
                                                                      $-711,000
 CCT Installation Ancillary Activities
                                                                           $140
                                                                           $145
                                                                             $5
                                                                           $379
                                                                             $0
                                                                          $-379
 CCT Re-Optimization (Due to ALE)
                                                                        $10,000
                                                                         $3,375
                                                                        $-6,719
                                                                        $48,000
                                                                         $7,544
                                                                       $-41,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $19
                                                                           $562
                                                                           $543
                                                                            $79
                                                                         $1,053
                                                                           $974
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $3,408
                                                                         $3,408
                                                                             $0
                                                                        $61,000
                                                                        $61,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $292
                                                                           $292
                                                                             $0
                                                                         $5,024
                                                                         $5,024
 Find and Fix Installation
                                                                             $0
                                                                         $7,730
                                                                         $7,730
                                                                             $0
                                                                        $69,000
                                                                        $69,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $53,000
                                                                        $53,000
                                                                             $0
                                                                        $59,000
                                                                        $59,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,196,000
                                                                     $1,014,000
                                                                      $-182,000
                                                                     $1,700,000
                                                                     $1,147,000
                                                                      $-553,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.429: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 1,001 to 3,300 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $687,000
                                                                       $687,000
                                                                             $0
                                                                       $687,000
                                                                       $687,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $19,000
                                                                        $23,000
                                                                         $3,479
                                                                        $19,000
                                                                        $23,000
                                                                         $3,278
 CCT Installation
                                                                       $140,000
                                                                         $8,001
                                                                      $-132,000
                                                                       $404,000
                                                                        $18,000
                                                                      $-386,000
 CCT Installation Ancillary Activities
                                                                           $917
                                                                           $207
                                                                          $-710
                                                                         $3,116
                                                                           $620
                                                                        $-2,496
 CCT Re-Optimization (Due to ALE)
                                                                        $12,000
                                                                         $4,105
                                                                        $-7,646
                                                                        $43,000
                                                                         $9,509
                                                                       $-33,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $394
                                                                           $602
                                                                           $208
                                                                           $932
                                                                         $1,043
                                                                           $111
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $7,287
                                                                         $7,287
                                                                             $0
                                                                        $37,000
                                                                        $37,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $334
                                                                           $334
                                                                             $0
                                                                         $2,270
                                                                         $2,270
 Find and Fix Installation
                                                                             $0
                                                                        $13,000
                                                                        $13,000
                                                                             $0
                                                                        $43,000
                                                                        $43,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $30,000
                                                                        $30,000
                                                                             $0
                                                                        $34,000
                                                                        $34,000
 Total Annual Corrosion Control Technology Costs
                                                                       $860,000
                                                                       $774,000
                                                                       $-86,000
                                                                     $1,157,000
                                                                       $856,000
                                                                      $-302,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.430: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 3,301 to 10,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $257,000
                                                                       $257,000
                                                                             $0
                                                                       $257,000
                                                                       $257,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,058
                                                                         $4,683
                                                                           $625
                                                                         $4,049
                                                                         $4,651
                                                                           $601
 CCT Installation
                                                                        $37,000
                                                                        $15,000
                                                                       $-22,000
                                                                        $94,000
                                                                        $41,000
                                                                       $-53,000
 CCT Installation Ancillary Activities
                                                                           $245
                                                                           $227
                                                                           $-18
                                                                           $829
                                                                           $624
                                                                          $-205
 CCT Re-Optimization (Due to ALE)
                                                                         $4,544
                                                                         $3,543
                                                                        $-1,001
                                                                        $14,000
                                                                         $8,990
                                                                        $-5,316
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $48
                                                                           $105
                                                                            $56
                                                                           $178
                                                                           $297
                                                                           $119
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,819
                                                                         $1,819
                                                                             $0
                                                                        $14,000
                                                                        $14,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                            $39
                                                                            $39
                                                                             $0
                                                                           $561
                                                                           $561
 Find and Fix Installation
                                                                             $0
                                                                         $8,726
                                                                         $8,726
                                                                             $0
                                                                        $31,000
                                                                        $31,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $8,676
                                                                         $8,676
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 Total Annual Corrosion Control Technology Costs
                                                                       $303,000
                                                                       $300,000
                                                                        $-3,530
                                                                       $370,000
                                                                       $368,000
                                                                        $-1,733
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.431: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 10,001 to 50,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $105,000
                                                                       $105,000
                                                                             $0
                                                                       $105,000
                                                                       $105,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $437
                                                                           $541
                                                                           $104
                                                                           $436
                                                                           $539
                                                                           $103
 CCT Installation
                                                                         $6,347
                                                                         $4,736
                                                                        $-1,611
                                                                        $17,000
                                                                        $13,000
                                                                        $-3,885
 CCT Installation Ancillary Activities
                                                                            $89
                                                                            $28
                                                                           $-61
                                                                           $255
                                                                            $90
                                                                          $-165
 CCT Re-Optimization (Due to ALE)
                                                                         $1,755
                                                                         $1,755
                                                                            $-0
                                                                         $4,832
                                                                         $3,768
                                                                        $-1,064
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $14
                                                                            $22
                                                                             $9
                                                                            $30
                                                                            $54
                                                                            $24
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                           $620
                                                                           $620
                                                                             $0
                                                                         $6,358
                                                                         $6,358
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $6
                                                                             $6
                                                                             $0
                                                                            $96
                                                                            $96
 Find and Fix Installation
                                                                             $0
                                                                         $3,009
                                                                         $3,009
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $1,327
                                                                         $1,327
                                                                             $0
                                                                         $1,563
                                                                         $1,563
 Total Annual Corrosion Control Technology Costs
                                                                       $113,000
                                                                       $117,000
                                                                         $3,402
                                                                       $128,000
                                                                       $141,000
                                                                        $13,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.432: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 50,001 to 100,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                        $54,000
                                                                        $54,000
                                                                             $0
                                                                        $54,000
                                                                        $54,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                            $80
                                                                           $107
                                                                            $27
                                                                            $80
                                                                           $107
                                                                            $27
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                           $704
                                                                           $141
                                                                          $-563
                                                                         $1,963
                                                                           $311
                                                                        $-1,652
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $1
                                                                             $1
                                                                             $0
                                                                             $4
                                                                             $4
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                           $374
                                                                           $374
                                                                             $0
                                                                         $2,102
                                                                         $2,102
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $3
                                                                             $3
                                                                             $0
                                                                            $29
                                                                            $29
 Find and Fix Installation
                                                                             $0
                                                                           $257
                                                                           $257
                                                                             $0
                                                                         $1,272
                                                                         $1,272
 Find and Fix Ancillary Activities
                                                                             $0
                                                                           $146
                                                                           $146
                                                                             $0
                                                                           $152
                                                                           $152
 Total Annual Corrosion Control Technology Costs
                                                                        $55,000
                                                                        $55,000
                                                                           $245
                                                                        $56,000
                                                                        $58,000
                                                                         $1,934
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.433: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 100 and Fewer Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $321,000
                                                                       $321,000
                                                                             $0
                                                                       $321,000
                                                                       $321,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,223
                                                                         $5,614
                                                                         $1,391
                                                                         $4,233
                                                                         $5,539
                                                                         $1,306
 CCT Installation
                                                                        $23,000
                                                                             $0
                                                                       $-23,000
                                                                        $66,000
                                                                             $0
                                                                       $-66,000
 CCT Installation Ancillary Activities
                                                                            $15
                                                                             $0
                                                                           $-15
                                                                            $44
                                                                             $0
                                                                           $-44
 CCT Re-Optimization (Due to ALE)
                                                                         $1,824
                                                                           $121
                                                                        $-1,703
                                                                        $13,000
                                                                             $0
                                                                       $-13,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $8
                                                                             $0
                                                                            $-8
                                                                            $32
                                                                             $0
                                                                           $-32
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $2,557
                                                                         $2,557
                                                                             $0
                                                                        $18,000
                                                                        $18,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $152
                                                                           $152
                                                                             $0
                                                                         $1,869
                                                                         $1,869
 Find and Fix Installation
                                                                             $0
                                                                           $471
                                                                           $471
                                                                             $0
                                                                         $2,986
                                                                         $2,986
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $10,000
                                                                        $10,000
                                                                             $0
                                                                        $10,000
                                                                        $10,000
 Total Annual Corrosion Control Technology Costs
                                                                       $350,000
                                                                       $340,000
                                                                       $-10,000
                                                                       $404,000
                                                                       $359,000
                                                                       $-45,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.434: National Annualized Corrosion Control Technology Costs - Public NTNCWS of Size 101 to 500 Treating Surface Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $332,000
                                                                       $332,000
                                                                             $0
                                                                       $332,000
                                                                       $332,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,901
                                                                         $6,350
                                                                         $1,449
                                                                         $4,903
                                                                         $6,288
                                                                         $1,385
 CCT Installation
                                                                        $24,000
                                                                             $0
                                                                       $-24,000
                                                                        $68,000
                                                                             $0
                                                                       $-68,000
 CCT Installation Ancillary Activities
                                                                            $16
                                                                             $0
                                                                           $-16
                                                                            $44
                                                                             $0
                                                                           $-44
 CCT Re-Optimization (Due to ALE)
                                                                         $3,007
                                                                           $355
                                                                        $-2,652
                                                                        $15,000
                                                                            $79
                                                                       $-15,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $10
                                                                            $70
                                                                            $60
                                                                            $33
                                                                             $0
                                                                           $-33
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,790
                                                                         $1,790
                                                                             $0
                                                                        $19,000
                                                                        $19,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0