$1,079,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.396: National Annualized Corrosion Control Technology Costs - Private CWS 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)
                                                                     $2,414,000
                                                                     $2,414,000
                                                                             $0
                                                                     $2,418,000
                                                                     $2,418,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $3,733
                                                                         $5,239
                                                                         $1,507
                                                                         $3,727
                                                                         $5,287
                                                                         $1,560
 CCT Installation
                                                                       $132,000
                                                                       $135,000
                                                                         $3,139
                                                                       $541,000
                                                                       $546,000
                                                                         $5,095
 CCT Installation Ancillary Activities
                                                                         $1,046
                                                                           $723
                                                                          $-323
                                                                         $3,897
                                                                         $4,411
                                                                           $514
 CCT Re-Optimization (Due to ALE)
                                                                         $2,197
                                                                        $53,000
                                                                        $51,000
                                                                       $108,000
                                                                       $304,000
                                                                       $196,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $30,000
                                                                        $30,000
                                                                           $609
                                                                       $105,000
                                                                       $105,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $84,000
                                                                        $84,000
                                                                             $0
                                                                       $160,000
                                                                       $160,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $665
                                                                           $665
                                                                             $0
                                                                         $1,996
                                                                         $1,996
 Find and Fix Installation
                                                                             $0
                                                                        $63,000
                                                                        $63,000
                                                                             $0
                                                                       $205,000
                                                                       $205,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $37,000
                                                                        $37,000
                                                                             $0
                                                                        $63,000
                                                                        $63,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,553,000
                                                                     $2,823,000
                                                                       $270,000
                                                                     $3,076,000
                                                                     $3,813,000
                                                                       $738,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.397: National Annualized Corrosion Control Technology Costs - Private CWS 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)
                                                                     $1,805,000
                                                                     $1,805,000
                                                                             $0
                                                                     $1,804,000
                                                                     $1,804,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $511
                                                                         $1,119
                                                                           $609
                                                                           $511
                                                                         $1,105
                                                                           $594
 CCT Installation
                                                                         $3,733
                                                                             $0
                                                                        $-3,733
                                                                        $13,000
                                                                        $12,000
                                                                          $-762
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                            $44
                                                                            $44
 CCT Re-Optimization (Due to ALE)
                                                                        $24,000
                                                                        $28,000
                                                                         $4,010
                                                                       $104,000
                                                                       $141,000
                                                                        $36,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $3,304
                                                                         $3,304
                                                                             $0
                                                                        $16,000
                                                                        $16,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $28,000
                                                                        $28,000
                                                                             $0
                                                                        $70,000
                                                                        $70,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $177
                                                                           $177
                                                                             $0
                                                                           $422
                                                                           $422
 Find and Fix Installation
                                                                             $0
                                                                        $14,000
                                                                        $14,000
                                                                             $0
                                                                        $36,000
                                                                        $36,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                         $8,144
                                                                         $8,144
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,833,000
                                                                     $1,889,000
                                                                        $55,000
                                                                     $1,922,000
                                                                     $2,092,000
                                                                       $170,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.398: National Annualized Corrosion Control Technology Costs - Private CWS of Size 100,001 to 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)
                                                                     $2,726,000
                                                                     $2,726,000
                                                                             $0
                                                                     $2,732,000
                                                                     $2,732,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                           $404
                                                                         $1,020
                                                                           $616
                                                                           $404
                                                                         $1,013
                                                                           $609
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $17,000
                                                                        $40,000
                                                                        $23,000
                                                                       $127,000
                                                                       $247,000
                                                                       $120,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $2,496
                                                                         $2,496
                                                                             $0
                                                                        $25,000
                                                                        $25,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $45,000
                                                                        $45,000
                                                                             $0
                                                                       $161,000
                                                                       $161,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                            $77
                                                                            $77
                                                                             $0
                                                                           $556
                                                                           $556
 Find and Fix Installation
                                                                             $0
                                                                        $30,000
                                                                        $30,000
                                                                             $0
                                                                       $102,000
                                                                       $102,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $20,000
                                                                        $20,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,744,000
                                                                     $2,855,000
                                                                       $111,000
                                                                     $2,859,000
                                                                     $3,288,000
                                                                       $429,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.399: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $600,000
                                                                       $600,000
                                                                             $0
                                                                       $600,000
                                                                       $600,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $7,935
                                                                        $11,000
                                                                         $3,131
                                                                         $7,962
                                                                        $11,000
                                                                         $3,012
 CCT Installation
                                                                        $33,000
                                                                           $544
                                                                       $-32,000
                                                                       $125,000
                                                                             $0
                                                                      $-125,000
 CCT Installation Ancillary Activities
                                                                            $21
                                                                            $48
                                                                            $27
                                                                            $83
                                                                             $0
                                                                           $-83
 CCT Re-Optimization (Due to ALE)
                                                                         $1,268
                                                                           $132
                                                                        $-1,136
                                                                        $34,000
                                                                         $1,455
                                                                       $-32,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $4
                                                                             $0
                                                                            $-4
                                                                            $78
                                                                             $0
                                                                           $-78
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $17,000
                                                                        $17,000
                                                                             $0
                                                                        $48,000
                                                                        $48,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,337
                                                                         $2,337
                                                                             $0
                                                                         $4,245
                                                                         $4,245
 Find and Fix Installation
                                                                             $0
                                                                         $2,153
                                                                         $2,153
                                                                             $0
                                                                         $4,721
                                                                         $4,721
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $33,000
                                                                        $33,000
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Total Annual Corrosion Control Technology Costs
                                                                       $642,000
                                                                       $666,000
                                                                        $24,000
                                                                       $768,000
                                                                       $697,000
                                                                       $-70,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.400: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $1,257,000
                                                                     $1,257,000
                                                                             $0
                                                                     $1,257,000
                                                                     $1,257,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $14,000
                                                                        $20,000
                                                                         $5,941
                                                                        $14,000
                                                                        $20,000
                                                                         $5,843
 CCT Installation
                                                                        $77,000
                                                                        $35,000
                                                                       $-41,000
                                                                       $191,000
                                                                        $67,000
                                                                      $-125,000
 CCT Installation Ancillary Activities
                                                                            $44
                                                                         $1,543
                                                                         $1,498
                                                                           $106
                                                                         $2,218
                                                                         $2,112
 CCT Re-Optimization (Due to ALE)
                                                                         $2,785
                                                                         $8,211
                                                                         $5,426
                                                                        $82,000
                                                                        $47,000
                                                                       $-36,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $6
                                                                             $0
                                                                            $-6
                                                                           $159
                                                                       $129,000
                                                                       $129,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $37,000
                                                                        $37,000
                                                                             $0
                                                                        $99,000
                                                                        $99,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $4,128
                                                                         $4,128
                                                                             $0
                                                                         $8,412
                                                                         $8,412
 Find and Fix Installation
                                                                             $0
                                                                        $39,000
                                                                        $39,000
                                                                             $0
                                                                        $85,000
                                                                        $85,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $64,000
                                                                        $64,000
                                                                             $0
                                                                        $57,000
                                                                        $57,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,351,000
                                                                     $1,466,000
                                                                       $116,000
                                                                     $1,545,000
                                                                     $1,772,000
                                                                       $226,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.401: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $434,000
                                                                       $434,000
                                                                             $0
                                                                       $434,000
                                                                       $434,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $4,748
                                                                         $6,469
                                                                         $1,721
                                                                         $4,747
                                                                         $6,377
                                                                         $1,630
 CCT Installation
                                                                        $20,000
                                                                        $21,000
                                                                           $845
                                                                        $70,000
                                                                        $56,000
                                                                       $-14,000
 CCT Installation Ancillary Activities
                                                                            $14
                                                                           $868
                                                                           $854
                                                                            $37
                                                                        $13,000
                                                                        $13,000
 CCT Re-Optimization (Due to ALE)
                                                                         $1,619
                                                                         $4,827
                                                                         $3,209
                                                                        $26,000
                                                                        $77,000
                                                                        $52,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $4
                                                                           $168
                                                                           $165
                                                                            $46
                                                                       $340,000
                                                                       $340,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $42,000
                                                                        $42,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,075
                                                                         $1,075
                                                                             $0
                                                                         $2,851
                                                                         $2,851
 Find and Fix Installation
                                                                             $0
                                                                        $26,000
                                                                        $26,000
                                                                             $0
                                                                       $139,000
                                                                       $139,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $21,000
                                                                        $21,000
                                                                             $0
                                                                        $29,000
                                                                        $29,000
 Total Annual Corrosion Control Technology Costs
                                                                       $461,000
                                                                       $527,000
                                                                        $65,000
                                                                       $535,000
                                                                     $1,140,000
                                                                       $605,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.402: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $920,000
                                                                       $920,000
                                                                             $0
                                                                       $921,000
                                                                       $921,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $7,281
                                                                        $11,000
                                                                         $3,349
                                                                         $7,294
                                                                        $11,000
                                                                         $3,206
 CCT Installation
                                                                        $38,000
                                                                        $35,000
                                                                        $-3,249
                                                                       $107,000
                                                                       $103,000
                                                                        $-3,623
 CCT Installation Ancillary Activities
                                                                           $304
                                                                         $1,157
                                                                           $853
                                                                           $617
                                                                         $2,892
                                                                         $2,276
 CCT Re-Optimization (Due to ALE)
                                                                         $6,404
                                                                        $15,000
                                                                         $8,787
                                                                        $64,000
                                                                       $189,000
                                                                       $125,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $234
                                                                        $22,000
                                                                        $22,000
                                                                         $1,852
                                                                       $553,000
                                                                       $551,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $13,000
                                                                        $13,000
                                                                             $0
                                                                        $82,000
                                                                        $82,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $467
                                                                           $467
                                                                             $0
                                                                         $4,751
                                                                         $4,751
 Find and Fix Installation
                                                                             $0
                                                                        $58,000
                                                                        $58,000
                                                                             $0
                                                                       $288,000
                                                                       $288,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $31,000
                                                                        $31,000
                                                                             $0
                                                                        $53,000
                                                                        $53,000
 Total Annual Corrosion Control Technology Costs
                                                                       $973,000
                                                                     $1,107,000
                                                                       $135,000
                                                                     $1,101,000
                                                                     $2,207,000
                                                                     $1,106,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.403: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $1,343,000
                                                                     $1,343,000
                                                                             $0
                                                                     $1,349,000
                                                                     $1,349,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $6,347
                                                                         $8,927
                                                                         $2,580
                                                                         $6,353
                                                                         $8,842
                                                                         $2,489
 CCT Installation
                                                                        $49,000
                                                                        $43,000
                                                                        $-5,832
                                                                        $82,000
                                                                        $80,000
                                                                        $-2,406
 CCT Installation Ancillary Activities
                                                                           $164
                                                                           $482
                                                                           $318
                                                                           $179
                                                                           $868
                                                                           $688
 CCT Re-Optimization (Due to ALE)
                                                                        $13,000
                                                                        $37,000
                                                                        $23,000
                                                                       $110,000
                                                                       $258,000
                                                                       $148,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $15
                                                                        $18,000
                                                                        $18,000
                                                                         $1,818
                                                                       $295,000
                                                                       $293,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $24,000
                                                                        $24,000
                                                                             $0
                                                                       $149,000
                                                                       $149,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $555
                                                                           $555
                                                                             $0
                                                                         $4,104
                                                                         $4,104
 Find and Fix Installation
                                                                             $0
                                                                        $69,000
                                                                        $69,000
                                                                             $0
                                                                       $319,000
                                                                       $319,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $26,000
                                                                        $26,000
                                                                             $0
                                                                        $48,000
                                                                        $48,000
 Total Annual Corrosion Control Technology Costs
                                                                     $1,412,000
                                                                     $1,571,000
                                                                       $159,000
                                                                     $1,549,000
                                                                     $2,511,000
                                                                       $962,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.404: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $3,626,000
                                                                     $3,626,000
                                                                             $0
                                                                     $3,630,000
                                                                     $3,630,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $6,964
                                                                        $11,000
                                                                         $3,903
                                                                         $6,964
                                                                        $11,000
                                                                         $3,764
 CCT Installation
                                                                        $12,000
                                                                           $832
                                                                       $-11,000
                                                                        $48,000
                                                                        $35,000
                                                                       $-13,000
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $8
                                                                         $1,253
                                                                         $1,245
 CCT Re-Optimization (Due to ALE)
                                                                        $14,000
                                                                       $103,000
                                                                        $88,000
                                                                       $287,000
                                                                       $538,000
                                                                       $251,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $16
                                                                        $18,000
                                                                        $18,000
                                                                         $1,510
                                                                       $227,000
                                                                       $225,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $105,000
                                                                       $105,000
                                                                             $0
                                                                       $381,000
                                                                       $381,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $887
                                                                           $887
                                                                             $0
                                                                         $4,769
                                                                         $4,769
 Find and Fix Installation
                                                                             $0
                                                                       $120,000
                                                                       $120,000
                                                                             $0
                                                                       $468,000
                                                                       $468,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $38,000
                                                                        $38,000
                                                                             $0
                                                                        $72,000
                                                                        $72,000
 Total Annual Corrosion Control Technology Costs
                                                                     $3,660,000
                                                                     $4,023,000
                                                                       $363,000
                                                                     $3,974,000
                                                                     $5,368,000
                                                                     $1,394,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.405: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                     $2,706,000
                                                                     $2,706,000
                                                                             $0
                                                                     $2,704,000
                                                                     $2,704,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $2,182
                                                                         $3,824
                                                                         $1,643
                                                                         $2,182
                                                                         $3,812
                                                                         $1,630
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                        $25,000
                                                                        $65,000
                                                                        $40,000
                                                                       $104,000
                                                                       $190,000
                                                                        $86,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $6,269
                                                                         $6,269
                                                                             $0
                                                                        $33,000
                                                                        $33,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $45,000
                                                                        $45,000
                                                                             $0
                                                                       $163,000
                                                                       $163,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $207
                                                                           $207
                                                                             $0
                                                                         $1,418
                                                                         $1,418
 Find and Fix Installation
                                                                             $0
                                                                        $56,000
                                                                        $56,000
                                                                             $0
                                                                       $121,000
                                                                       $121,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $19,000
                                                                        $19,000
                                                                             $0
                                                                        $27,000
                                                                        $27,000
 Total Annual Corrosion Control Technology Costs
                                                                     $2,732,000
                                                                     $2,900,000
                                                                       $168,000
                                                                     $2,810,000
                                                                     $3,243,000
                                                                       $433,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.406: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                    $10,756,000
                                                                    $10,756,000
                                                                             $0
                                                                    $10,772,000
                                                                    $10,772,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $2,608
                                                                         $5,250
                                                                         $2,642
                                                                         $2,608
                                                                         $5,222
                                                                         $2,614
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                       $101,000
                                                                       $174,000
                                                                        $73,000
                                                                       $445,000
                                                                       $896,000
                                                                       $451,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                         $9,920
                                                                         $9,920
                                                                             $0
                                                                        $81,000
                                                                        $81,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $175,000
                                                                       $175,000
                                                                             $0
                                                                       $657,000
                                                                       $657,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $420
                                                                           $420
                                                                             $0
                                                                         $1,888
                                                                         $1,888
 Find and Fix Installation
                                                                             $0
                                                                       $239,000
                                                                       $239,000
                                                                             $0
                                                                       $557,000
                                                                       $557,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $41,000
                                                                        $41,000
                                                                             $0
                                                                        $72,000
                                                                        $72,000
 Total Annual Corrosion Control Technology Costs
                                                                    $10,860,000
                                                                    $11,400,000
                                                                       $540,000
                                                                    $11,220,000
                                                                    $13,042,000
                                                                     $1,822,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.407: National Annualized Corrosion Control Technology Costs - Private 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)
                                                                       $184,000
                                                                       $184,000
                                                                             $0
                                                                       $184,000
                                                                       $184,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                            $74
                                                                            $97
                                                                            $23
                                                                            $74
                                                                            $97
                                                                            $23
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                             $0
                                                                         $1,313
                                                                         $1,313
                                                                             $0
                                                                         $1,337
                                                                         $1,337
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                         $1,551
                                                                         $1,551
                                                                             $0
                                                                           $854
                                                                           $854
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Find and Fix Installation
                                                                             $0
                                                                         $1,778
                                                                         $1,778
                                                                             $0
                                                                         $1,467
                                                                         $1,467
 Find and Fix Ancillary Activities
                                                                             $0
                                                                           $528
                                                                           $528
                                                                             $0
                                                                           $531
                                                                           $531
 Total Annual Corrosion Control Technology Costs
                                                                       $184,000
                                                                       $189,000
                                                                         $5,193
                                                                       $184,000
                                                                       $188,000
                                                                         $4,212
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.408: National Annualized Corrosion Control Technology Costs - Public CWS of Size 100 and Fewer Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                       $630,000
                                                                       $630,000
                                                                             $0
                                                                       $630,000
                                                                       $630,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $22,000
                                                                        $26,000
                                                                         $4,331
                                                                        $21,000
                                                                        $25,000
                                                                         $3,892
 CCT Installation
                                                                       $158,000
                                                                           $786
                                                                      $-157,000
                                                                       $570,000
                                                                             $0
                                                                      $-570,000
 CCT Installation Ancillary Activities
                                                                            $95
                                                                             $0
                                                                           $-95
                                                                           $332
                                                                             $0
                                                                          $-332
 CCT Re-Optimization (Due to ALE)
                                                                         $1,045
                                                                             $0
                                                                        $-1,045
                                                                        $44,000
                                                                             $0
                                                                       $-44,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                             $0
                                                                             $0
                                                                            $90
                                                                             $0
                                                                           $-90
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $15,000
                                                                        $15,000
                                                                             $0
                                                                        $40,000
                                                                        $40,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $1,168
                                                                         $1,168
                                                                             $0
                                                                         $2,570
                                                                         $2,570
 Find and Fix Installation
                                                                             $0
                                                                         $5,692
                                                                         $5,692
                                                                             $0
                                                                         $8,360
                                                                         $8,360
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $99,000
                                                                        $99,000
                                                                             $0
                                                                       $100,000
                                                                       $100,000
 Total Annual Corrosion Control Technology Costs
                                                                       $811,000
                                                                       $777,000
                                                                       $-34,000
                                                                     $1,266,000
                                                                       $806,000
                                                                      $-460,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.409: National Annualized Corrosion Control Technology Costs - Public CWS of Size 101 to 500 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $4,216,000
                                                                     $4,216,000
                                                                             $0
                                                                     $4,216,000
                                                                     $4,216,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $80,000
                                                                        $96,000
                                                                        $16,000
                                                                        $80,000
                                                                        $95,000
                                                                        $15,000
 CCT Installation
                                                                       $765,000
                                                                       $368,000
                                                                      $-397,000
                                                                     $2,985,000
                                                                     $1,026,000
                                                                    $-1,960,000
 CCT Installation Ancillary Activities
                                                                           $403
                                                                        $16,000
                                                                        $16,000
                                                                         $1,251
                                                                        $48,000
                                                                        $47,000
 CCT Re-Optimization (Due to ALE)
                                                                         $3,742
                                                                        $15,000
                                                                        $12,000
                                                                       $222,000
                                                                       $250,000
                                                                        $29,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $9
                                                                             $0
                                                                            $-9
                                                                           $351
                                                                     $1,012,000
                                                                     $1,012,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $118,000
                                                                       $118,000
                                                                             $0
                                                                       $302,000
                                                                       $302,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $9,814
                                                                         $9,814
                                                                             $0
                                                                        $21,000
                                                                        $21,000
 Find and Fix Installation
                                                                             $0
                                                                       $189,000
                                                                       $189,000
                                                                             $0
                                                                       $730,000
                                                                       $730,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $348,000
                                                                       $348,000
                                                                             $0
                                                                       $395,000
                                                                       $395,000
 Total Annual Corrosion Control Technology Costs
                                                                     $5,065,000
                                                                     $5,376,000
                                                                       $311,000
                                                                     $7,505,000
                                                                     $8,096,000
                                                                       $591,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.410: National Annualized Corrosion Control Technology Costs - Public CWS of Size 501 to 1,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                     $4,741,000
                                                                     $4,741,000
                                                                             $0
                                                                     $4,743,000
                                                                     $4,743,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $49,000
                                                                        $60,000
                                                                        $11,000
                                                                        $49,000
                                                                        $60,000
                                                                        $11,000
 CCT Installation
                                                                       $669,000
                                                                       $569,000
                                                                      $-100,000
                                                                     $1,843,000
                                                                     $1,501,000
                                                                      $-342,000
 CCT Installation Ancillary Activities
                                                                           $237
                                                                        $14,000
                                                                        $14,000
                                                                           $659
                                                                       $308,000
                                                                       $308,000
 CCT Re-Optimization (Due to ALE)
                                                                        $12,000
                                                                        $27,000
                                                                        $15,000
                                                                       $278,000
                                                                       $811,000
                                                                       $532,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                            $31
                                                                         $6,507
                                                                         $6,476
                                                                           $301
                                                                     $2,223,000
                                                                     $2,223,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                        $79,000
                                                                        $79,000
                                                                             $0
                                                                       $353,000
                                                                       $353,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $4,557
                                                                         $4,557
                                                                             $0
                                                                        $19,000
                                                                        $19,000
 Find and Fix Installation
                                                                             $0
                                                                       $243,000
                                                                       $243,000
                                                                             $0
                                                                     $1,369,000
                                                                     $1,369,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $231,000
                                                                       $231,000
                                                                             $0
                                                                       $326,000
                                                                       $326,000
 Total Annual Corrosion Control Technology Costs
                                                                     $5,471,000
                                                                     $5,974,000
                                                                       $503,000
                                                                     $6,914,000
                                                                    $11,713,000
                                                                     $4,799,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.411: National Annualized Corrosion Control Technology Costs - Public CWS of Size 1,001 to 3,300 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $11,763,000
                                                                    $11,763,000
                                                                             $0
                                                                    $11,773,000
                                                                    $11,773,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $85,000
                                                                       $111,000
                                                                        $26,000
                                                                        $85,000
                                                                       $110,000
                                                                        $25,000
 CCT Installation
                                                                     $1,169,000
                                                                     $1,089,000
                                                                       $-79,000
                                                                     $3,760,000
                                                                     $3,463,000
                                                                      $-297,000
 CCT Installation Ancillary Activities
                                                                         $8,331
                                                                        $20,000
                                                                        $12,000
                                                                        $23,000
                                                                        $58,000
                                                                        $35,000
 CCT Re-Optimization (Due to ALE)
                                                                        $46,000
                                                                       $121,000
                                                                        $74,000
                                                                       $594,000
                                                                     $1,881,000
                                                                     $1,287,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $1,397
                                                                       $187,000
                                                                       $186,000
                                                                        $12,000
                                                                     $4,328,000
                                                                     $4,317,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $135,000
                                                                       $135,000
                                                                             $0
                                                                       $794,000
                                                                       $794,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $6,309
                                                                         $6,309
                                                                             $0
                                                                        $31,000
                                                                        $31,000
 Find and Fix Installation
                                                                             $0
                                                                       $561,000
                                                                       $561,000
                                                                             $0
                                                                     $3,008,000
                                                                     $3,008,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $466,000
                                                                       $466,000
                                                                             $0
                                                                       $717,000
                                                                       $717,000
 Total Annual Corrosion Control Technology Costs
                                                                    $13,073,000
                                                                    $14,460,000
                                                                     $1,387,000
                                                                    $16,246,000
                                                                    $26,164,000
                                                                     $9,918,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.412: National Annualized Corrosion Control Technology Costs - Public CWS of Size 3,301 to 10,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 CCT Operations and Maintenance (Existing)
                                                                    $14,206,000
                                                                    $14,206,000
                                                                             $0
                                                                    $14,241,000
                                                                    $14,241,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $63,000
                                                                        $80,000
                                                                        $17,000
                                                                        $63,000
                                                                        $80,000
                                                                        $17,000
 CCT Installation
                                                                     $1,277,000
                                                                     $1,332,000
                                                                        $55,000
                                                                     $3,443,000
                                                                     $3,169,000
                                                                      $-275,000
 CCT Installation Ancillary Activities
                                                                         $9,384
                                                                        $10,000
                                                                           $884
                                                                        $20,000
                                                                        $28,000
                                                                         $7,606
 CCT Re-Optimization (Due to ALE)
                                                                       $224,000
                                                                       $373,000
                                                                       $149,000
                                                                       $814,000
                                                                     $2,295,000
                                                                     $1,481,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                         $2,060
                                                                       $133,000
                                                                       $131,000
                                                                         $9,568
                                                                     $2,016,000
                                                                     $2,007,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $127,000
                                                                       $127,000
                                                                             $0
                                                                     $1,186,000
                                                                     $1,186,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $2,495
                                                                         $2,495
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Find and Fix Installation
                                                                             $0
                                                                       $794,000
                                                                       $794,000
                                                                             $0
                                                                     $2,886,000
                                                                     $2,886,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $360,000
                                                                       $360,000
                                                                             $0
                                                                       $596,000
                                                                       $596,000
 Total Annual Corrosion Control Technology Costs
                                                                    $15,782,000
                                                                    $17,417,000
                                                                     $1,636,000
                                                                    $18,591,000
                                                                    $26,525,000
                                                                     $7,934,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.413: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $22,895,000
                                                                    $22,895,000
                                                                             $0
                                                                    $22,923,000
                                                                    $22,923,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                        $22,000
                                                                        $34,000
                                                                        $13,000
                                                                        $22,000
                                                                        $34,000
                                                                        $13,000
 CCT Installation
                                                                       $942,000
                                                                       $997,000
                                                                        $55,000
                                                                     $2,818,000
                                                                     $2,900,000
                                                                        $81,000
 CCT Installation Ancillary Activities
                                                                         $3,344
                                                                         $4,556
                                                                         $1,212
                                                                        $19,000
                                                                        $24,000
                                                                         $5,088
 CCT Re-Optimization (Due to ALE)
                                                                       $197,000
                                                                       $565,000
                                                                       $367,000
                                                                     $1,297,000
                                                                     $3,155,000
                                                                     $1,858,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                           $542
                                                                       $104,000
                                                                       $103,000
                                                                         $5,644
                                                                       $918,000
                                                                       $913,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $357,000
                                                                       $357,000
                                                                             $0
                                                                     $1,691,000
                                                                     $1,691,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                         $3,660
                                                                         $3,660
                                                                             $0
                                                                        $15,000
                                                                        $15,000
 Find and Fix Installation
                                                                             $0
                                                                       $625,000
                                                                       $625,000
                                                                             $0
                                                                     $2,071,000
                                                                     $2,071,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                       $241,000
                                                                       $241,000
                                                                             $0
                                                                       $429,000
                                                                       $429,000
 Total Annual Corrosion Control Technology Costs
                                                                    $24,060,000
                                                                    $25,826,000
                                                                     $1,766,000
                                                                    $27,084,000
                                                                    $34,160,000
                                                                     $7,076,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.414: National Annualized Corrosion Control Technology Costs - Public CWS 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)
                                                                    $16,525,000
                                                                    $16,525,000
                                                                             $0
                                                                    $16,516,000
                                                                    $16,516,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $3,350
                                                                         $8,523
                                                                         $5,173
                                                                         $3,350
                                                                         $8,520
                                                                         $5,170
 CCT Installation
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Installation Ancillary Activities
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 CCT Re-Optimization (Due to ALE)
                                                                       $163,000
                                                                       $338,000
                                                                       $175,000
                                                                       $804,000
                                                                     $1,264,000
                                                                       $460,000
 CCT Re-Optimization Ancillary Activities (Due to ALE)
                                                                             $0
                                                                        $33,000
                                                                        $33,000
                                                                             $0
                                                                       $135,000
                                                                       $135,000
 CCT Re-Optimization (Due to TLE)
                                                                             $0
                                                                       $170,000
                                                                       $170,000
                                                                             $0
                                                                       $914,000
                                                                       $914,000
 CCT Re-Optimization Ancillary Activities (Due to TLE)
                                                                             $0
                                                                           $913
                                                                           $913
                                                                             $0
                                                                         $5,272
                                                                         $5,272
 Find and Fix Installation
                                                                             $0
                                                                       $153,000
                                                                       $153,000
                                                                             $0
                                                                       $370,000
                                                                       $370,000
 Find and Fix Ancillary Activities
                                                                             $0
                                                                        $65,000
                                                                        $65,000
                                                                             $0
                                                                        $94,000
                                                                        $94,000
 Total Annual Corrosion Control Technology Costs
                                                                    $16,691,000
                                                                    $17,294,000
                                                                       $603,000
                                                                    $17,323,000
                                                                    $19,307,000
                                                                     $1,984,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.415: National Annualized Corrosion Control Technology Costs - Public CWS of Size 100,001 to 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)
                                                                    $13,850,000
                                                                    $13,850,000
                                                                             $0
                                                                    $13,877,000
                                                                    $13,877,000
                                                                             $0
 CCT Related Sanitary Survey and Source or Treatment Change Notification Activities
                                                                         $1,729
                                                                         $4,146
                                                                         $2,417
                                                                         $1,729
                                                                         $4,119
                                                                         $2,390
 CCT Installation
                                                                        $19,000
                                                                        $20,000
                                                                         $1,189
                                                                        $50,000