I.87-11-033 et al. COM/cacd Page E-35 Tuolumne Telephone Company Adopted Rates and Charges Incrementa $1,036,501 Incrementa $42,900 % Increase 86.62% Factor Inc 1.8662 EST.'91 PRESENT PRESENT ADOPTED ADOPTED CHARGE ANNUAL PERCENT SERVICE CHARGES UNITS CHARGE TOTAL CHARGE TOTAL DIFF DIFF DIFF (a) (b) (c) (d) (e) (f) (g) (h) BUS.-SERVICE ORDER-FIRST 110 $16.50 $1,815 $30.80 $3,388 $14.30 $1,573 86.67% BUS.-SVC. ORDER-SUBSEQUENT 65 12.00 780 22.40 1,456 10.40 676 86.67% BUS.-LINE CONNECTION 115 21.00 2,415 39.20 4,508 18.20 2,093 86.67% BUS.-PREMISE VISIT 0 30.00 0 56.00 0 26.00 0 86.67% BUS.-SUPERSEDURE 16 16.50 264 30.80 493 14.30 229 86.67% BUS.-NON-PAY RECONNECT 31 33.00 1,023 61.60 1,910 28.60 887 86.67% RES.-SERVICE ORDER-FIRST 1,121 9.00 10,089 16.80 18,833 7.80 8,744 86.67% RES.-SVC. ORDER-SUBSEQUENT 344 7.00 2,408 13.05 4,489 6.05 2,081 86.43% RES.-LINE CONNECTION 1,285 12.75 16,384 23.80 30,583 11.05 14,199 86.67% RES.-PREMISE VISIT 12 30.00 360 56.00 672 26.00 312 86.67% RES.-SUPERSEDURE 35 9.00 315 16.80 588 7.80 273 86.67% RES.-NON-PAY RECONNECT 692 19.75 13,667 36.85 25,500 17.10 11,833 86.58% TOTAL 3,826 49,520 92,420 42,900 Incremental Revenue Requirement to be recovered from CHCF: $993,601 I.87-11-033 et al. COM/cacd Page E-34 Tuolumne Telephone Company Adopted Rates and Charges Incremental Revenue Requ $1,238,984 Incremental Revenue Earn $202,483 % Increase to Basic Rate 27.80% Factor Increase: 1.27803 % Increase to Basic Rate 26.37% % Increase to Basic Rate 25.43% % Increase to Basic Rate 9.19% % Increase to Basic Rate 0.00% '91 MO AVG PRESENT PRESENT ADOPTED ADOPTED RATE ANNUAL PERCENT LOCAL EXCHANGE UNITS MO RATE YR TOTAL MO RATE YR TOTAL DIFF DIFF DIFF RES:1-PARTY flat 1,131 $13.20 $179,150 $16.85 $228,688 $3.65 $49,538 27.65% 1-PARTY flat --Oak Run 641 13.35 102,688 16.85 129,610 3.50 26,922 26.22% 1-PARTY flat Zone 1 447 13.45 72,146 16.85 90,383 3.40 18,238 25.28% 1-PARTY flat Zone 2 621 15.45 115,133 16.85 125,566 1.40 10,433 9.06% 1-PARTY flat Zone 3 8 17.45 1,675 17.45 1,675 0.00 0 0.00% 1-PARTY measured 661 8.95 70,991 11.45 90,821 2.50 19,830 27.93% 1-PARTY measured Zone 1 218 9.15 23,936 11.50 30,084 2.35 6,148 25.68% 1-PARTY measured Zone 2 362 11.15 48,436 12.15 52,780 1.00 4,344 8.97% 1-PARTY measured Zone 3 4 13.15 631 13.15 631 0.00 0 0.00% SUBURBAN flat 61 13.10 9,589 16.75 12,261 3.65 2,672 27.86% SUBURBAN flat Oak Run 57 13.35 9,131 16.85 11,525 3.50 2,394 26.22% KEY LINE flat 0 13.20 0 16.85 0 3.65 0 27.65% KEY LINE flat Zone 1 0 13.45 0 16.85 0 3.40 0 25.28% KEY LINE flat Zone 2 0 15.45 0 16.85 0 1.40 0 9.06% KEY LINE flat Zone 3 0 17.45 0 17.45 0 0.00 0 0.00% KEY LINE measured 0 8.95 0 11.45 0 2.50 0 27.93% KEY LINE measured Zone 1 0 9.15 0 11.50 0 2.35 0 25.68% KEY LINE measured Zone 2 0 11.15 0 12.15 0 1.00 0 8.97% KEY LINE measured Zone 3 0 13.15 0 13.15 0 0.00 0 0.00% Subtotal 4,211 $633,508 $774,026 $140,518 BUS:1-PARTY flat 63 $27.55 $20,828 35.20 $26,611 $7.65 $5,783 27.77% 1-PARTY measured 661 22.10 175,297 28.25 224,079 6.15 48,782 27.83% 1-PARTY measured Zone 1 60 22.75 16,380 28.55 20,556 5.80 4,176 25.49% 1-PARTY measured Zone 2 67 24.75 19,899 27.00 21,708 2.25 1,809 9.09% 1-PARTY measured Zone 3 1 26.75 321 26.75 321 0.00 0 0.00% KEY LINE flat 4 27.55 1,322 35.20 1,690 7.65 367 27.77% KEY LINE measured 2 22.10 530 28.25 678 6.15 148 27.83% KEY LINE measured Zone 1 11 22.75 3,003 28.55 3,769 5.80 766 25.49% KEY LINE measured Zone 2 5 24.75 1,485 27.00 1,620 2.25 135 9.09% KEY LINE measured Zone 3 0 26.75 0 26.75 0 0.00 0 0.00% PBX TRUNK flat 0 41.35 0 52.85 0 11.50 0 27.81% PBX TRUNK measured 0 22.10 0 28.25 0 6.15 0 27.83% PBX TRUNK measured Zone 1 0 22.75 0 28.55 0 5.80 0 25.49% PBX TRUNK measured Zone 2 0 24.75 0 27.00 0 2.25 0 9.09% PBX TRUNK measured Zone 3 0 26.75 0 26.75 0 0.00 0 0.00% SEMI-PUBLIC 0 31.75 0 40.60 0 8.85 0 27.87% SEMI-PUBLIC Zone 1 0 32.00 0 40.15 0 8.15 0 25.47% SEMI-PUBLIC Zone 2 0 34.00 0 37.10 0 3.10 0 9.12% SEMI-PUBLIC Zone 3 0 36.00 0 36.00 0 0.00 0 0.00% Subtotal 874 $239,066 $301,031 $61,966 TOTAL BUS. + RES. 5,085 $872,574 $1,075,057 $202,483 23.21% Incremental Revenue Requirement To Be Recovered From Service Connection Charges: $1,036,501