$646
                                                                           $379
                                                                         $1,475
                                                                         $1,270
                                                                          $-205
 Total Annual Rule Costs
                                                                       $432,000
                                                                       $723,000
                                                                       $291,000
                                                                       $506,000
                                                                       $843,000
                                                                       $336,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.156: National Annualized Rule Costs - Public NTNCWS of Size 10,001 to 50,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                         $5,831
                                                                        $15,000
                                                                         $9,204
                                                                         $6,499
                                                                        $17,000
                                                                        $10,000
 PWS Lead Service Line Replacement
                                                                             $1
                                                                           $255
                                                                           $254
                                                                            $11
                                                                           $320
                                                                           $309
 Corrosion Control Technology
                                                                       $107,000
                                                                       $111,000
                                                                         $3,095
                                                                       $121,000
                                                                       $134,000
                                                                        $13,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                         $1,228
                                                                         $1,228
                                                                             $0
                                                                         $4,654
                                                                         $4,654
 Public Education and Outreach
                                                                             $4
                                                                           $215
                                                                           $211
                                                                            $11
                                                                           $240
                                                                           $228
 Rule Implementation and Administration
                                                                             $0
                                                                           $786
                                                                           $786
                                                                             $0
                                                                           $786
                                                                           $786
 Total Annual PWS Costs
                                                                       $113,000
                                                                       $128,000
                                                                        $15,000
                                                                       $127,000
                                                                       $157,000
                                                                        $29,000
 State Rule Implementation and Administration
                                                                        $97,000
                                                                       $293,000
                                                                       $197,000
                                                                        $97,000
                                                                       $294,000
                                                                       $197,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $285
                                                                           $436
                                                                           $151
                                                                           $605
                                                                         $1,507
                                                                           $902
 Total Annual Rule Costs
                                                                       $211,000
                                                                       $422,000
                                                                       $211,000
                                                                       $225,000
                                                                       $452,000
                                                                       $227,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.157: National Annualized Rule Costs - Public NTNCWS of Size 50,001 to 100,000 Treating Ground Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                         $2,051
                                                                         $2,828
                                                                           $777
                                                                         $2,079
                                                                         $2,884
                                                                           $804
 PWS Lead Service Line Replacement
                                                                             $0
                                                                            $56
                                                                            $56
                                                                             $3
                                                                            $72
                                                                            $69
 Corrosion Control Technology
                                                                        $53,000
                                                                        $53,000
                                                                           $233
                                                                        $54,000
                                                                        $56,000
                                                                         $1,844
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                           $324
                                                                           $324
                                                                             $0
                                                                           $998
                                                                           $998
 Public Education and Outreach
                                                                             $0
                                                                            $35
                                                                            $34
                                                                             $1
                                                                            $38
                                                                            $37
 Rule Implementation and Administration
                                                                             $0
                                                                            $85
                                                                            $85
                                                                             $0
                                                                            $85
                                                                            $85
 Total Annual PWS Costs
                                                                        $55,000
                                                                        $56,000
                                                                         $1,508
                                                                        $56,000
                                                                        $60,000
                                                                         $3,836
 State Rule Implementation and Administration
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                            $84
                                                                            $82
                                                                            $-2
                                                                           $242
                                                                           $289
                                                                            $47
 Total Annual Rule Costs
                                                                       $151,000
                                                                       $348,000
                                                                       $196,000
                                                                       $153,000
                                                                       $351,000
                                                                       $198,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.158: National Annualized Rule Costs - Public NTNCWS of Size 100 and Fewer Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                        $28,000
                                                                        $48,000
                                                                        $20,000
                                                                        $31,000
                                                                        $49,000
                                                                        $17,000
 PWS Lead Service Line Replacement
                                                                            $31
                                                                         $4,646
                                                                         $4,614
                                                                           $822
                                                                         $5,148
                                                                         $4,326
 Corrosion Control Technology
                                                                       $334,000
                                                                       $325,000
                                                                        $-9,324
                                                                       $392,000
                                                                       $348,000
                                                                       $-44,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                         $6,799
                                                                         $6,799
                                                                             $0
                                                                        $18,000
                                                                        $18,000
 Public Education and Outreach
                                                                            $75
                                                                         $4,109
                                                                         $4,034
                                                                           $229
                                                                         $4,240
                                                                         $4,011
 Rule Implementation and Administration
                                                                             $0
                                                                        $16,000
                                                                        $16,000
                                                                             $0
                                                                        $16,000
                                                                        $16,000
 Total Annual PWS Costs
                                                                       $362,000
                                                                       $404,000
                                                                        $42,000
                                                                       $424,000
                                                                       $439,000
                                                                        $15,000
 State Rule Implementation and Administration
                                                                       $109,000
                                                                       $355,000
                                                                       $246,000
                                                                       $112,000
                                                                       $359,000
                                                                       $247,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                            $36
                                                                             $9
                                                                           $-27
                                                                            $75
                                                                            $70
                                                                            $-5
 Total Annual Rule Costs
                                                                       $471,000
                                                                       $759,000
                                                                       $288,000
                                                                       $537,000
                                                                       $799,000
                                                                       $262,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.159: National Annualized Rule Costs - Public NTNCWS of Size 101 to 500 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                        $38,000
                                                                        $70,000
                                                                        $32,000
                                                                        $42,000
                                                                        $70,000
                                                                        $28,000
 PWS Lead Service Line Replacement
                                                                            $53
                                                                         $3,860
                                                                         $3,807
                                                                         $1,586
                                                                         $4,044
                                                                         $2,458
 Corrosion Control Technology
                                                                       $347,000
                                                                       $337,000
                                                                        $-9,958
                                                                       $407,000
                                                                       $369,000
                                                                       $-38,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                        $12,000
                                                                        $12,000
                                                                             $0
                                                                        $33,000
                                                                        $33,000
 Public Education and Outreach
                                                                            $81
                                                                         $4,276
                                                                         $4,195
                                                                           $235
                                                                         $4,405
                                                                         $4,169
 Rule Implementation and Administration
                                                                             $0
                                                                        $16,000
                                                                        $16,000
                                                                             $0
                                                                        $16,000
                                                                        $16,000
 Total Annual PWS Costs
                                                                       $385,000
                                                                       $443,000
                                                                        $58,000
                                                                       $451,000
                                                                       $498,000
                                                                        $47,000
 State Rule Implementation and Administration
                                                                       $111,000
                                                                       $357,000
                                                                       $246,000
                                                                       $116,000
                                                                       $361,000
                                                                       $246,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                            $28
                                                                            $51
                                                                            $23
                                                                           $110
                                                                           $107
                                                                            $-3
 Total Annual Rule Costs
                                                                       $496,000
                                                                       $801,000
                                                                       $304,000
                                                                       $566,000
                                                                       $859,000
                                                                       $293,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.160: National Annualized Rule Costs - Public NTNCWS of Size 501 to 1,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                        $14,000
                                                                        $29,000
                                                                        $15,000
                                                                        $16,000
                                                                        $31,000
                                                                        $16,000
 PWS Lead Service Line Replacement
                                                                             $8
                                                                         $1,307
                                                                         $1,299
                                                                           $361
                                                                         $1,683
                                                                         $1,322
 Corrosion Control Technology
                                                                       $181,000
                                                                       $182,000
                                                                         $1,241
                                                                       $198,000
                                                                       $203,000
                                                                         $4,827
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                         $4,579
                                                                         $4,579
                                                                             $0
                                                                        $14,000
                                                                        $14,000
 Public Education and Outreach
                                                                            $21
                                                                         $1,348
                                                                         $1,327
                                                                            $67
                                                                         $1,410
                                                                         $1,343
 Rule Implementation and Administration
                                                                             $0
                                                                         $5,109
                                                                         $5,109
                                                                             $0
                                                                         $5,109
                                                                         $5,109
 Total Annual PWS Costs
                                                                       $194,000
                                                                       $223,000
                                                                        $29,000
                                                                       $214,000
                                                                       $257,000
                                                                        $43,000
 State Rule Implementation and Administration
                                                                       $101,000
                                                                       $315,000
                                                                       $215,000
                                                                       $102,000
                                                                       $317,000
                                                                       $215,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                            $72
                                                                            $25
                                                                           $-47
                                                                           $193
                                                                           $281
                                                                            $88
 Total Annual Rule Costs
                                                                       $295,000
                                                                       $539,000
                                                                       $244,000
                                                                       $316,000
                                                                       $574,000
                                                                       $258,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.161: National Annualized Rule Costs - Public NTNCWS of Size 1,001 to 3,300 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                        $19,000
                                                                        $40,000
                                                                        $21,000
                                                                        $21,000
                                                                        $42,000
                                                                        $21,000
 PWS Lead Service Line Replacement
                                                                            $12
                                                                         $1,689
                                                                         $1,677
                                                                           $229
                                                                         $2,763
                                                                         $2,533
 Corrosion Control Technology
                                                                       $333,000
                                                                       $334,000
                                                                         $1,003
                                                                       $359,000
                                                                       $379,000
                                                                        $20,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                        $10,000
                                                                        $10,000
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Public Education and Outreach
                                                                            $36
                                                                         $1,690
                                                                         $1,655
                                                                            $94
                                                                         $1,766
                                                                         $1,672
 Rule Implementation and Administration
                                                                             $0
                                                                         $6,355
                                                                         $6,355
                                                                             $0
                                                                         $6,355
                                                                         $6,355
 Total Annual PWS Costs
                                                                       $352,000
                                                                       $394,000
                                                                        $42,000
                                                                       $381,000
                                                                       $460,000
                                                                        $79,000
 State Rule Implementation and Administration
                                                                       $103,000
                                                                       $326,000
                                                                       $222,000
                                                                       $105,000
                                                                       $328,000
                                                                       $223,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $525
                                                                           $222
                                                                          $-302
                                                                           $909
                                                                           $596
                                                                          $-313
 Total Annual Rule Costs
                                                                       $455,000
                                                                       $720,000
                                                                       $265,000
                                                                       $487,000
                                                                       $789,000
                                                                       $302,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.162: National Annualized Rule Costs - Public NTNCWS of Size 3,301 to 10,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                        $15,000
                                                                        $37,000
                                                                        $22,000
                                                                        $17,000
                                                                        $41,000
                                                                        $24,000
 PWS Lead Service Line Replacement
                                                                             $7
                                                                         $1,253
                                                                         $1,246
                                                                            $79
                                                                         $1,489
                                                                         $1,410
 Corrosion Control Technology
                                                                       $417,000
                                                                       $428,000
                                                                        $11,000
                                                                       $442,000
                                                                       $492,000
                                                                        $50,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                         $5,171
                                                                         $5,171
                                                                             $0
                                                                        $17,000
                                                                        $17,000
 Public Education and Outreach
                                                                            $17
                                                                           $968
                                                                           $951
                                                                            $52
                                                                         $1,043
                                                                           $990
 Rule Implementation and Administration
                                                                             $0
                                                                         $3,596
                                                                         $3,596
                                                                             $0
                                                                         $3,596
                                                                         $3,596
 Total Annual PWS Costs
                                                                       $431,000
                                                                       $476,000
                                                                        $44,000
                                                                       $459,000
                                                                       $556,000
                                                                        $97,000
 State Rule Implementation and Administration
                                                                       $101,000
                                                                       $310,000
                                                                       $210,000
                                                                       $102,000
                                                                       $311,000
                                                                       $210,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $523
                                                                           $443
                                                                           $-79
                                                                         $1,134
                                                                         $2,331
                                                                         $1,197
 Total Annual Rule Costs
                                                                       $532,000
                                                                       $786,000
                                                                       $254,000
                                                                       $562,000
                                                                       $869,000
                                                                       $308,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.163: National Annualized Rule Costs - Public NTNCWS of Size 10,001 to 50,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                         $7,334
                                                                        $18,000
                                                                        $11,000
                                                                         $7,865
                                                                        $20,000
                                                                        $12,000
 PWS Lead Service Line Replacement
                                                                             $0
                                                                           $292
                                                                           $292
                                                                            $35
                                                                           $430
                                                                           $395
 Corrosion Control Technology
                                                                       $215,000
                                                                       $221,000
                                                                         $5,639
                                                                       $224,000
                                                                       $249,000
                                                                        $25,000
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                           $524
                                                                           $524
                                                                             $0
                                                                         $1,647
                                                                         $1,647
 Public Education and Outreach
                                                                             $4
                                                                           $216
                                                                           $212
                                                                            $11
                                                                           $238
                                                                           $227
 Rule Implementation and Administration
                                                                             $0
                                                                           $786
                                                                           $786
                                                                             $0
                                                                           $786
                                                                           $786
 Total Annual PWS Costs
                                                                       $222,000
                                                                       $241,000
                                                                        $19,000
                                                                       $232,000
                                                                       $272,000
                                                                        $40,000
 State Rule Implementation and Administration
                                                                        $97,000
                                                                       $295,000
                                                                       $198,000
                                                                        $97,000
                                                                       $295,000
                                                                       $198,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $456
                                                                           $495
                                                                            $39
                                                                         $1,022
                                                                         $1,733
                                                                           $711
 Total Annual Rule Costs
                                                                       $320,000
                                                                       $536,000
                                                                       $216,000
                                                                       $331,000
                                                                       $569,000
                                                                       $239,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.164: National Annualized Rule Costs - Public NTNCWS of Size 50,001 to 100,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                         $2,419
                                                                         $3,301
                                                                           $882
                                                                         $2,447
                                                                         $3,364
                                                                           $917
 PWS Lead Service Line Replacement
                                                                             $0
                                                                            $58
                                                                            $58
                                                                             $4
                                                                            $79
                                                                            $75
 Corrosion Control Technology
                                                                        $60,000
                                                                        $60,000
                                                                           $-58
                                                                        $62,000
                                                                        $64,000
                                                                         $2,525
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                           $429
                                                                           $429
                                                                             $0
                                                                         $1,018
                                                                         $1,018
 Public Education and Outreach
                                                                             $1
                                                                            $35
                                                                            $34
                                                                             $1
                                                                            $38
                                                                            $37
 Rule Implementation and Administration
                                                                             $0
                                                                            $85
                                                                            $85
                                                                             $0
                                                                            $85
                                                                            $85
 Total Annual PWS Costs
                                                                        $63,000
                                                                        $64,000
                                                                         $1,430
                                                                        $64,000
                                                                        $69,000
                                                                         $4,657
 State Rule Implementation and Administration
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $114
                                                                           $101
                                                                           $-13
                                                                           $293
                                                                           $288
                                                                            $-5
 Total Annual Rule Costs
                                                                       $160,000
                                                                       $356,000
                                                                       $196,000
                                                                       $161,000
                                                                       $360,000
                                                                       $199,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.165: National Annualized Rule Costs - Public NTNCWS of Size 100,001 to 1,000,000 Treating Surface Water at 7% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate
 PWS Annual Costs
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Sampling
                                                                         $1,877
                                                                         $3,222
                                                                         $1,345
                                                                         $1,923
                                                                         $3,395
                                                                         $1,472
 PWS Lead Service Line Replacement
                                                                             $0
                                                                            $66
                                                                            $66
                                                                             $4
                                                                            $82
                                                                            $78
 Corrosion Control Technology
                                                                       $143,000
                                                                       $143,000
                                                                          $-244
                                                                       $146,000
                                                                       $151,000
                                                                         $4,513
 Point-of Use Installation and Maintenance
                                                                             $0
                                                                         $1,205
                                                                         $1,205
                                                                             $0
                                                                         $2,422
                                                                         $2,422
 Public Education and Outreach
                                                                             $1
                                                                            $41
                                                                            $40
                                                                             $2
                                                                            $46
                                                                            $44
 Rule Implementation and Administration
                                                                             $0
                                                                            $97
                                                                            $97
                                                                             $0
                                                                            $97
                                                                            $97
 Total Annual PWS Costs
                                                                       $145,000
                                                                       $148,000
                                                                         $2,509
                                                                       $148,000
                                                                       $157,000
                                                                         $8,625
 State Rule Implementation and Administration
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
                                                                        $97,000
                                                                       $291,000
                                                                       $195,000
 Household Lead Service Line Replacement
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Wastewater Treatment Plant Costs
                                                                           $783
                                                                           $377
                                                                          $-405
                                                                         $1,269
                                                                         $1,485
                                                                           $216
 Total Annual Rule Costs
                                                                       $243,000
                                                                       $439,000
                                                                       $197,000
                                                                       $246,000
                                                                       $449,000
                                                                       $203,000
 Notes: Detail may not add exactly to total due to independent rounding.

 National Annualized Sampling Costs
3 Percent Discount Rate
 Exhibit C.166: National Annualized Sampling Costs - All PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                       $140,000
                                                                       $152,000
                                                                        $13,000
                                                                       $134,000
                                                                       $150,000
                                                                        $16,000
 Lead Water Quality Parameters Monitoring
                                                                     $7,265,000
                                                                     $8,225,000
                                                                       $959,000
                                                                     $8,311,000
                                                                    $10,211,000
                                                                     $1,900,000
 Lead Tap Sampling Monitoring
                                                                    $34,536,000
                                                                    $46,775,000
                                                                    $12,239,000
                                                                    $36,604,000
                                                                    $55,386,000
                                                                    $18,782,000
 Source Water Monitoring
                                                                        $20,000
                                                                         $9,419
                                                                       $-11,000
                                                                        $50,000
                                                                        $31,000
                                                                       $-18,000
 School Sampling
                                                                             $0
                                                                    $12,582,000
                                                                    $12,582,000
                                                                             $0
                                                                    $12,960,000
                                                                    $12,960,000
 Total Annual Sampling Costs
                                                                    $41,962,000
                                                                    $67,744,000
                                                                    $25,782,000
                                                                    $45,099,000
                                                                    $78,739,000
                                                                    $33,641,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.167: National Annualized Sampling Costs - CWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                        $84,000
                                                                        $95,000
                                                                        $11,000
                                                                        $80,000
                                                                        $93,000
                                                                        $13,000
 Lead Water Quality Parameters Monitoring
                                                                     $7,180,000
                                                                     $8,200,000
                                                                     $1,020,000
                                                                     $8,084,000
                                                                    $10,150,000
                                                                     $2,066,000
 Lead Tap Sampling Monitoring
                                                                    $32,384,000
                                                                    $42,706,000
                                                                    $10,321,000
                                                                    $34,374,000
                                                                    $51,275,000
                                                                    $16,901,000
 Source Water Monitoring
                                                                        $15,000
                                                                         $7,486
                                                                        $-7,981
                                                                        $41,000
                                                                        $27,000
                                                                       $-13,000
 School Sampling
                                                                             $0
                                                                    $12,582,000
                                                                    $12,582,000
                                                                             $0
                                                                    $12,960,000
                                                                    $12,960,000
 Total Annual Sampling Costs
                                                                    $39,664,000
                                                                    $63,591,000
                                                                    $23,926,000
                                                                    $42,579,000
                                                                    $74,505,000
                                                                    $31,926,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.168: National Annualized Sampling Costs - NTNCWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                        $55,000
                                                                        $57,000
                                                                         $1,993
                                                                        $54,000
                                                                        $57,000
                                                                         $3,390
 Lead Water Quality Parameters Monitoring
                                                                        $85,000
                                                                        $24,000
                                                                       $-61,000
                                                                       $227,000
                                                                        $62,000
                                                                      $-165,000
 Lead Tap Sampling Monitoring
                                                                     $2,152,000
                                                                     $4,069,000
                                                                     $1,918,000
                                                                     $2,230,000
                                                                     $4,111,000
                                                                     $1,882,000
 Source Water Monitoring
                                                                         $5,024
                                                                         $1,933
                                                                        $-3,091
                                                                         $8,855
                                                                         $3,915
                                                                        $-4,939
 School Sampling
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Total Annual Sampling Costs
                                                                     $2,297,000
                                                                     $4,153,000
                                                                     $1,856,000
                                                                     $2,520,000
                                                                     $4,234,000
                                                                     $1,714,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.169: National Annualized Sampling Costs - Private PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                        $33,000
                                                                        $37,000
                                                                         $3,921
                                                                        $31,000
                                                                        $37,000
                                                                         $5,266
 Lead Water Quality Parameters Monitoring
                                                                       $932,000
                                                                     $1,095,000
                                                                       $163,000
                                                                     $1,255,000
                                                                     $1,342,000
                                                                        $87,000
 Lead Tap Sampling Monitoring
                                                                     $9,623,000
                                                                    $11,920,000
                                                                     $2,297,000
                                                                    $10,062,000
                                                                    $12,649,000
                                                                     $2,588,000
 Source Water Monitoring
                                                                         $5,740
                                                                         $3,021
                                                                        $-2,719
                                                                        $14,000
                                                                         $9,405
                                                                        $-5,031
 School Sampling
                                                                             $0
                                                                     $1,798,000
                                                                     $1,798,000
                                                                             $0
                                                                     $1,840,000
                                                                     $1,840,000
 Total Annual Sampling Costs
                                                                    $10,594,000
                                                                    $14,853,000
                                                                     $4,259,000
                                                                    $11,362,000
                                                                    $15,877,000
                                                                     $4,515,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.170: National Annualized Sampling Costs - Public PWS at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                       $106,000
                                                                       $115,000
                                                                         $8,629
                                                                       $103,000
                                                                       $114,000
                                                                        $11,000
 Lead Water Quality Parameters Monitoring
                                                                     $6,334,000
                                                                     $7,130,000
                                                                       $796,000
                                                                     $7,056,000
                                                                     $8,870,000
                                                                     $1,813,000
 Lead Tap Sampling Monitoring
                                                                    $24,913,000
                                                                    $34,855,000
                                                                     $9,942,000
                                                                    $26,542,000
                                                                    $42,737,000
                                                                    $16,195,000
 Source Water Monitoring
                                                                        $15,000
                                                                         $6,398
                                                                        $-8,354
                                                                        $35,000
                                                                        $22,000
                                                                       $-13,000
 School Sampling
                                                                             $0
                                                                    $10,785,000
                                                                    $10,785,000
                                                                             $0
                                                                    $11,120,000
                                                                    $11,120,000
 Total Annual Sampling Costs
                                                                    $31,367,000
                                                                    $52,891,000
                                                                    $21,523,000
                                                                    $33,737,000
                                                                    $62,863,000
                                                                    $29,126,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.171: National Annualized Sampling Costs - Private CWS of Size 100 and Fewer Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                        $10,000
                                                                        $17,000
                                                                         $6,450
                                                                         $8,770
                                                                        $17,000
                                                                         $7,879
 Lead Water Quality Parameters Monitoring
                                                                        $40,000
                                                                        $34,000
                                                                        $-6,811
                                                                       $146,000
                                                                        $37,000
                                                                      $-109,000
 Lead Tap Sampling Monitoring
                                                                     $3,045,000
                                                                     $3,440,000
                                                                       $395,000
                                                                     $3,127,000
                                                                     $3,200,000
                                                                        $73,000
 Source Water Monitoring
                                                                         $1,825
                                                                         $1,139
                                                                          $-686
                                                                         $4,443
                                                                         $2,930
                                                                        $-1,513
 School Sampling
                                                                             $0
                                                                       $308,000
                                                                       $308,000
                                                                             $0
                                                                       $308,000
                                                                       $308,000
 Total Annual Sampling Costs
                                                                     $3,097,000
                                                                     $3,799,000
                                                                       $702,000
                                                                     $3,286,000
                                                                     $3,564,000
                                                                       $278,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.172: National Annualized Sampling Costs - Private CWS of Size 101 to 500 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                        $12,000
                                                                        $12,000
                                                                          $-350
                                                                        $12,000
                                                                        $12,000
                                                                           $120
 Lead Water Quality Parameters Monitoring
                                                                        $42,000
                                                                        $84,000
                                                                        $41,000
                                                                       $151,000
                                                                        $87,000
                                                                       $-64,000
 Lead Tap Sampling Monitoring
                                                                     $3,118,000
                                                                     $3,693,000
                                                                       $575,000
                                                                     $3,238,000
                                                                     $3,579,000
                                                                       $341,000
 Source Water Monitoring
                                                                         $1,953
                                                                         $1,141
                                                                          $-812
                                                                         $4,544
                                                                         $3,314
                                                                        $-1,230
 School Sampling
                                                                             $0
                                                                       $306,000
                                                                       $306,000
                                                                             $0
                                                                       $307,000
                                                                       $307,000
 Total Annual Sampling Costs
                                                                     $3,174,000
                                                                     $4,096,000
                                                                       $921,000
                                                                     $3,406,000
                                                                     $3,989,000
                                                                       $583,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.173: National Annualized Sampling Costs - Private CWS of Size 501 to 1,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                         $3,293
                                                                         $2,922
                                                                          $-371
                                                                         $3,293
                                                                         $2,922
                                                                          $-371
 Lead Water Quality Parameters Monitoring
                                                                         $8,550
                                                                        $22,000
                                                                        $14,000
                                                                        $27,000
                                                                        $63,000
                                                                        $36,000
 Lead Tap Sampling Monitoring
                                                                       $703,000
                                                                       $905,000
                                                                       $202,000
                                                                       $730,000
                                                                     $1,113,000
                                                                       $382,000
 Source Water Monitoring
                                                                           $398
                                                                           $209
                                                                          $-189
                                                                           $816
                                                                           $669
                                                                          $-147
 School Sampling
                                                                             $0
                                                                        $66,000
                                                                        $66,000
                                                                             $0
                                                                        $67,000
                                                                        $67,000
 Total Annual Sampling Costs
                                                                       $715,000
                                                                       $996,000
                                                                       $281,000
                                                                       $761,000
                                                                     $1,246,000
                                                                       $485,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.174: National Annualized Sampling Costs - Private CWS of Size 1,001 to 3,300 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                         $2,629
                                                                         $1,897
                                                                          $-732
                                                                         $2,629
                                                                         $1,897
                                                                          $-732
 Lead Water Quality Parameters Monitoring
                                                                         $4,262
                                                                         $6,604
                                                                         $2,342
                                                                        $32,000
                                                                        $80,000
                                                                        $48,000
 Lead Tap Sampling Monitoring
                                                                       $484,000
                                                                       $612,000
                                                                       $128,000
                                                                       $523,000
                                                                       $802,000
                                                                       $280,000
 Source Water Monitoring
                                                                           $235
                                                                            $84
                                                                          $-151
                                                                           $873
                                                                           $590
                                                                          $-283
 School Sampling
                                                                             $0
                                                                        $81,000
                                                                        $81,000
                                                                             $0
                                                                        $83,000
                                                                        $83,000
 Total Annual Sampling Costs
                                                                       $492,000
                                                                       $702,000
                                                                       $211,000
                                                                       $558,000
                                                                       $968,000
                                                                       $410,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.175: National Annualized Sampling Costs - Private CWS of Size 3,301 to 10,000 Treating Ground Water at 3% Discount Rate (2016$)

                               Low Cost Estimate
                               High Cost Estimate

                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
                                                                   Previous LCR
                                                                     Final LCRR
                                                                    Incremental
 Copper Water Quality Parameters Monitoring
                                                                           $889
                                                                           $444
                                                                          $-444
                                                                           $889
                                                                             $0
                                                                          $-889
 Lead Water Quality Parameters Monitoring
                                                                         $3,938
                                                                         $8,454
                                                                         $4,516
                                                                        $15,000
                                                                        $42,000
                                                                        $27,000
 Lead Tap Sampling Monitoring
                                                                       $401,000
                                                                       $520,000
                                                                       $119,000
                                                                       $429,000
                                                                       $686,000
                                                                       $256,000
 Source Water Monitoring
                                                                           $151
                                                                            $74
                                                                           $-76
                                                                           $297
                                                                           $244
                                                                           $-53
 School Sampling
                                                                             $0
                                                                        $75,000
                                                                        $75,000
                                                                             $0
                                                                        $77,000
                                                                        $77,000
 Total Annual Sampling Costs
                                                                       $406,000
                                                                       $604,000
                                                                       $198,000
                                                                       $445,000
                                                                       $805,000
                                                                       $360,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.176: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                             $0
                                                                           $472
                                                                           $472
                                                                             $0
                                                                           $472
                                                                           $472
 Lead Water Quality Parameters Monitoring
                                                                         $2,089
                                                                         $8,683
                                                                         $6,594
                                                                        $16,000
                                                                        $34,000
                                                                        $18,000
 Lead Tap Sampling Monitoring
                                                                       $318,000
                                                                       $445,000
                                                                       $127,000
                                                                       $353,000
                                                                       $553,000
                                                                       $201,000
 Source Water Monitoring
                                                                            $59
                                                                            $52
                                                                            $-6
                                                                           $280
                                                                           $199
                                                                           $-82
 School Sampling
                                                                             $0
                                                                       $118,000
                                                                       $118,000
                                                                             $0
                                                                       $122,000
                                                                       $122,000
 Total Annual Sampling Costs
                                                                       $320,000
                                                                       $572,000
                                                                       $252,000
                                                                       $369,000
                                                                       $710,000
                                                                       $341,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.177: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Water Quality Parameters Monitoring
                                                                       $240,000
                                                                       $247,000
                                                                         $7,082
                                                                       $240,000
                                                                       $247,000
                                                                         $7,309
 Lead Tap Sampling Monitoring
                                                                        $25,000
                                                                        $41,000
                                                                        $16,000
                                                                        $28,000
                                                                        $47,000
                                                                        $19,000
 Source Water Monitoring
                                                                             $7
                                                                             $6
                                                                            $-1
                                                                            $52
                                                                            $42
                                                                           $-10
 School Sampling
                                                                             $0
                                                                        $50,000
                                                                        $50,000
                                                                             $0
                                                                        $51,000
                                                                        $51,000
 Total Annual Sampling Costs
                                                                       $265,000
                                                                       $338,000
                                                                        $73,000
                                                                       $268,000
                                                                       $346,000
                                                                        $77,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.178: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
                                                                             $0
 Lead Water Quality Parameters Monitoring
                                                                       $248,000
                                                                       $258,000
                                                                        $10,000
                                                                       $248,000
                                                                       $259,000
                                                                        $11,000
 Lead Tap Sampling Monitoring
                                                                        $45,000
                                                                        $67,000
                                                                        $22,000
                                                                        $49,000
                                                                        $89,000
                                                                        $39,000
 Source Water Monitoring
                                                                             $3
                                                                             $4
                                                                             $1
                                                                            $35
                                                                            $50
                                                                            $15
 School Sampling
                                                                             $0
                                                                        $82,000
                                                                        $82,000
                                                                             $0
                                                                        $85,000
                                                                        $85,000
 Total Annual Sampling Costs
                                                                       $293,000
                                                                       $407,000
                                                                       $114,000
                                                                       $297,000
                                                                       $433,000
                                                                       $136,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.179: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                           $885
                                                                           $738
                                                                          $-148
                                                                           $885
                                                                           $734
                                                                          $-151
 Lead Water Quality Parameters Monitoring
                                                                           $870
                                                                         $4,585
                                                                         $3,714
                                                                         $6,465
                                                                         $4,328
                                                                        $-2,137
 Lead Tap Sampling Monitoring
                                                                       $125,000
                                                                       $159,000
                                                                        $34,000
                                                                       $128,000
                                                                       $128,000
                                                                           $319
 Source Water Monitoring
                                                                           $202
                                                                            $60
                                                                          $-142
                                                                           $568
                                                                           $247
                                                                          $-321
 School Sampling
                                                                             $0
                                                                        $14,000
                                                                        $14,000
                                                                             $0
                                                                        $14,000
                                                                        $14,000
 Total Annual Sampling Costs
                                                                       $127,000
                                                                       $179,000
                                                                        $52,000
                                                                       $136,000
                                                                       $148,000
                                                                        $12,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.180: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                         $1,833
                                                                         $1,095
                                                                          $-738
                                                                         $1,833
                                                                         $1,095
                                                                          $-738
 Lead Water Quality Parameters Monitoring
                                                                         $1,901
                                                                        $17,000
                                                                        $15,000
                                                                        $12,000
                                                                        $13,000
                                                                           $540
 Lead Tap Sampling Monitoring
                                                                       $284,000
                                                                       $417,000
                                                                       $133,000
                                                                       $295,000
                                                                       $350,000
                                                                        $55,000
 Source Water Monitoring
                                                                           $439
                                                                           $124
                                                                          $-314
                                                                         $1,003
                                                                           $433
                                                                          $-570
 School Sampling
                                                                             $0
                                                                        $28,000
                                                                        $28,000
                                                                             $0
                                                                        $28,000
                                                                        $28,000
 Total Annual Sampling Costs
                                                                       $288,000
                                                                       $464,000
                                                                       $176,000
                                                                       $310,000
                                                                       $393,000
                                                                        $82,000
 Notes: Detail may not add exactly to total due to independent rounding.

 Exhibit C.181: National Annualized Sampling 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
 Copper Water Quality Parameters Monitoring
                                                                           $322
                                                                           $555
                                                                           $233
                                                                           $322
                                                                           $447
                                                                           $126
 Lead Water Quality Parameters Monitoring
                                                                           $787
                                                                         $4,636
                                                                         $3,849
                                                                         $3,733
                                                                        $13,000
                                                                         $9,254
 Lead Tap Sampling Monitoring
                                                                       $133,000
                                                                       $205,000
                                                                        $71,000
                                                                       $140,000
                                                                       $251,000
                                                                       $111,000
 Source Water Monitoring
                                                                            $95
                                                                            $31
                                                                           $-63
                                                                           $266
                                                                           $125
                                                                          $-141
 School Sampling
                                                                             $0
                                                                        $11,000
                                                                        $11,000
                                                                             $0
                                                                        $12,000
                                                                        $12,000
 Total Annual Sampling Costs
                                                                       $135,000
                                                                       $221,000
                                                                        $87,000
                                                                       $145,000
                                                                       $277,000