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09-15-1988 (City Council) Agenda Packet AGENDA CALLED CITY COUNCIL MEETING CITY OF WYLIE, TEXAS THURSDAY, SEPTEMBER 15, 1988 6 :30 P. M. CONFERENCE ROOM CITY MANAGER 'S OFFICE MUNICIPAL COMPLEX 2000 HIGHWAY 78 NORTH CALL TO ORDER INVOCATION ORDER OF PAGE BUSINESS REFERENCE BUSINESS 1 1 Consider approval of a request for a sewer tap on Presidential Estates sewer line for one lot in Lake Ranch Estates 2 Oral Discussion of 1988/89 Water and Sewer Fund Budget 3 ---- General Discussion 4 Adjourn NOTICE OF A CALLED MEETING Notice is hereby given that the governing body of the City of Wylie will meet for a called session on the 464 day of /1t7i7v , 198A? , in the City Manager ' s Conference Room in the Municipal Complex of Wylie at 2000 Highway 78 North, Wylie, Texas for the purpose of considering the attached Agenda . ( ' Carol on ,�"Ci ty Secretary Posted this the i,r,/, day of L ,/,-y/2 .--V , 19W , at M. Staff Report to Mayor and CityCouncil DATE: SUBJECT: NO: 8-5-88 SEWER TAP FOR ONE LOT IN LAKE RANCH ESTATES A Home Builder has approached the City of Wylie with a request to connect a new home he is currently planning to build in Lake Ranch Estates to the existing sanitary sewer line in Washington Place within Presidential Estates Subdivision. As you are aware the Texas Water Commission (TWC ) has issued an Enforcement Order against the City of Wylie which requires the elimination of the "Pump and Haul " method of wastewater transportation. This connection to the existing sewer with a new sewer service would increase the amount of wastewater which the City would have to transport . I feel that the addition of this one household to the Presidential Estates sewer system would not have a significant impact on our operations , nor would it be any different from adding a new household within Presidential Estates . I do not feel that the TWC will have a negative response to including this household because it will help put an end to the numerous septic system pollution loads on the area drinking water supplies. Therefore, I recommend that the sewer service be approved. ORIGINATING DEPT.HEAD DISPOSITION BY COUNCIL Ron Homeyer, Assist. City Engineer FOR ADD.INFO. CONTACT: OTHER: Ron Homeyer, Assit. City Engineer CITY OF WYLIE, TEXAS PROPOSED RATE SCHEDULES FOR WATER AND SEWER SERVICE (EFFECTIVE OCTOBER 1, 1988) Water Rates a. The following monthly water rates shall apply to all customers within the corporate limits of the City of Wylie, Texas. Monthly minimum charge (first 1,000 gallons of $ 6.50 metered water consumption) Volume charge for all consumption exceeding 1,000 gallons per month (per 1,000 gallons) : 1,001 to 2,000 gallons 1.82 2,001 to 10,000 gallons 2.09 10,001 to 30,000 gallons 2.40 Over 30,000 gallons 2.76 Sewage Collection and Treatment Rates a. The following monthly sewage collection and treatment rates shall apply to all residential customers of the City of Wylie, Texas with a maximum charge of $ 23.80 per month. Monthly minimum charge (first 1,000 gallons of $ 7.00 metered water consumption) Volume charge for all consumption exceeding 1,000 1.20 gallons per month (per 1,000 gallons) b. A $ 14.00 minimum monthly sewage collection and treat- ment charge for non-residential customers shall be in accordance with the above schedule, but with no maxi- mum. Any industrial waste surcharge shall be in addition to the above schedule and in accordance with the details of the Industrial Waste Ordinance. c. Sewer Fee - A sewer fee of $ 13.00 shall be charged for each apartment unit, multiple family unit or occupied mobile home space and special areas such as washaterias, swimming pools, etc. where the apartment, multiple family development or mobile home park is on a master meter with the City of Wylie. (Continued) A-1 CITY OF WYLIE, TEXAS PROPOSED RATE SCHEDULES FOR WATER AND SEWER SERVICE (EFFECTIVE OCTOBER 1, 1988) (CONTINUED) d. In addition to the charges listed above for sewage d collection and treatment services, a flat rate "pass a` through" charge shall be applied monthly to each custo- 01) mer account in order to recover the projected annual 4 yd .5 increase in costs related to operation, maintenance and /1 �`` expansion of the City's wastewater treatment plant. In �/ ,o � fiscal year 1988-89, this "pass through" charge shall be 01 applied as follows: d Residential customers, including each apartment $ 5.00 unit, multiple family unit or occupied mobile home space and special areas such as washaterias, swimming pools, etc. where the apartment, multi- ple family development or mobile home park is on a master meter with the City of Wylie (per month) . Non-residential customers, according to the following metered water consumption per month: 0 to 10,000 gallons $ 6.00 10,001 to 30,000 gallons 8.00 Over 30,000 gallons 10.00 //al c© p„, ,, - ,), 061-0 0, 0 6 '90/ 1211"--v /4*t*- 74-542 lOccnj 4'19,75 y C/) A-2 CITY OF WYLIE, TEXAS WATER CONSUMPTION AND BILLING DATA BY MONTH FISCAL YEAR 1987-88 (CURRENT RATES) Cons. Billed Per Avg. Cons. Acct. Month Amount Accts. (M Gals. ) (Gals. ) Bill Billed October 2,574 35,366.8 13 ,740 29 .69 76 ,585 November 2,564 23 ,343 .6 9 ,104 21.25 54,655 December 2,528 18,429 . 2 7, 290 17. 95 45,577 January 2,513 20,065. 2 7,985 19 .21 48 ,456 February 2 ,520 18 ,569.9 7,369 18 .09 45 ,788 March 2, 541 22 ,810.3 8 ,977 21.02 53 ,595 April 2,556 26,794.3 10 ,483 23 .76 60,906 May 2,592 29 ,547. 0 11,399 25.43 66 ,090 June 2 ,624 38,595 . 9 14,709 31.45 82 ,724 July 2,649 38 ,741. 8 14, 625 31. 30 83 ,105 August * 2, 649 38,741. 8 14,625 31.30 83 ,105 September * 2, 649 38,741.8 14, 625 31.30 83 ,105 Totals 349, 747.7 783 ,689 Averages 2,580 29,145 .6 11, 297 25. 31 65,307 * Estimated A-3 CITY OF WYLIE, TEXAS WATER CONSUMPTION AND BILLING DATA BY MONTH FISCAL YEAR 1987-88 (PROPOSED RATES) Cons. Billed Per Avg. Cons. Acct. Month Amount Accts. (M Gals. ) (Gals. ) Bill Billed October 2,574 35, 366. 8 13 ,740 37.03 95 ,318 November 2,564 23,343 . 6 9,104 24.93 63 , 914 December 2,528 18,429 . 2 7,290 20 .50 51, 831 January 2,513 20,065. 2 7,985 22 .31 56 ,066 February 2,520 18 ,569 . 9 7,369 20 .71 52,193 March 2 ,541 22, 810 .3 8 ,977 25 .02 63 ,576 April 2,556 26 ,794.3 10,483 28.32 72,398 May 2,592 29,547.0 11,399 30. 28 78 ,478 June 2 , 624 38,595. 9 14,709 39.21 102 , 874 July 2,649 38,741.8 14,625 38 .70 102,525 August * 2,649 38 ,741. 8 14 ,625 38 .70 102 ,525 September * 2, 649 38, 741.8 14, 625 38.70 102,525 Totals 349,747.7 944 ,223 Averages 2,580 29,145. 6 11,297 30.50 78 ,685 * Estimated A-4 CITY OF WYLIE, TEXAS ESTIMATED ADDITIONAL INCOME FROM PROPOSED WATER & SEWER RATE SCHEDULE ADDITIONAL BILLED DESCRIPTION OF CHANGE INCOME I . FOUR-TIERED WATER RATE SCHEDULE WITH 15% $160 ,534 BETWEEN EACH TIER II . "PASS THROUGH" CHARGES TO RECOVER 164, 640 INCREASED COSTS RELATING TO WASTEWATER TREATMENT PLANT Residential accounts: (2,424 x $ 5.00 x 12) $145,440 Non-residential accounts: 0 to 1Q,000 gals . (149 x $ 6.00 x 12) 10 ,728 10, 001 to 30 ,000 gals. (27 x $ 8.00 x 12) 2,592 Over 30,000 gals. (49 x $ 10 .00 x 12) 5, 880 TOTAL ESTIMATED ADDITIONAL BILLED INCOME $325,174 A-5 CITY OF WYLIE, TEXAS IMPACT OF PROPOSED RATE SCHEDULE ON WATER CUSTOMERS AT VARIOUS MONTHLY CONSUMPTION LEVELS Monthly Monthly Monthly Bill Bill Average Consumption (Current (Proposed Monthly Annual Per Cent (Gallons) Rates) Rates) Increase Increase Increase 1,000 $6.50 $6.50 $0.00 $0.00 0.0 2,000 8.32 8.32 0.00 0.00 0.0 4,000 11.96 12.50 0.54 6.48 4.5 6,000 15.60 16.68 1.08 12.96 6.9 8,000 19.24 20.86 1.62 19.44 8.4 10,000 22.88 25.04 2.16 25.92 9.4 15,000 31.98 37.04 5.06 60.72 15.8 20,000 41.08 49.04 7.96 95.52 19.4 25,000 50.18 61.04 10.86 130.32 21.6 30,000 59.28 73.04 13.76 165.12 23.2 40,000 77.48 100.64 23.16 277.92 29.9 50,000 95.68 128.24 32.56 390.72 34.0 75,000 141.18 197.24 56.06 672.72 39.7 100,000 186.68 266.24 79.56 954.72 42.6 A-6 CITY OF WYLIE, TEXAS IMPACT OF PROPOSED RATE SCHEDULE ON RESIDENTIAL SEWER CUSTOMER AT VARIOUS MONTHLY CONSUMPTION LEVELS Monthly Monthly Monthly Bill Bill Average Consumption (Current (Proposed Monthly Annual Per Cent (Gallons) Rates) Rates) * Increase Increase Increase 1,000 $7.00 $12.00 $5.00 $60.00 71.4 2,000 8.20 13.20 5.00 60.00 61.0 4,000 10.60 15.60 5.00 60.00 47.2 6,000 13.00 18.00 5.00 60.00 38.5 8,000 15.40 20.40 5.00 60.00 32.5 10,000 17.80 22.80 5.00 60.00 28.1 15,000 23.80 28.80 5.00 60.00 21.0 20,000 23.80 28.80 5.00 60.00 21.0 25,000 23.80 28.80 5.00 60.00 21.0 30,000 23.80 28.80 5.00 60.00 21.0 40,000 23.80 28.80 5.00 60.00 21.0 50,000 23.80 28.80 5.00 60.00 21.0 75,000 23.80 28.80 5.00 60.00 21.0 100,000 23.80 28.80 5.00 60.00 21.0 * Includes $ 5.00 per month "pass through" charge. A-7 CITY OF WYLIE, TEXAS IMPACT OF PROPOSED RATE SCHEDULE ON NON-RESIDENTIAL SEWER CUSTOMERS AT VARIOUS MONTHLY CONSUMPTION LEVELS Monthly Monthly Monthly Bill Bill Average Consumption (Current (Proposed Monthly Annual Per Cent (Gallons) Rates) Rates) * Increase Increase Increase 1,000 $7.00 $13.00 $6.00 $72.00 85.7 2,000 8.20 14.20 6.00 72.00 73.2 4,000 10.60 16.60 6.00 72.00 56.6 6,000 13.00 19.00 6.00 72.00 46.2 8,000 15.40 21.40 6.00 72.00 39.0 10,000 17.80 23.80 6.00 72.00 33.7 15,000 23.80 31.80 8.00 96.00 33.6 20,000 29.80 37.80 8.00 96.00 26.8 25,000 35.80 43.80 8.00 96.00 22.3 30,000 41.80 49.80 8.00 96.00 19.1 40,000 53.80 63.80 10.00 120.00 18.6 50,000 65.80 75.80 10.00 120.00 15.2 75,000 95.80 105.80 10.00 120.00 10.4 100,000 125.80 135.80 10.00 120.00 7.9 * Includes monthly "pass through" charge as follows: 0 to 10,000 gallons $6.00 10,001 to 30,000 gallons 8.00 Over 30,000 gallons 10.00 A-8 CITY OF WYLIE, TEXAS IMPACT OF PROPOSED RATE SCHEDULE ON RESIDENTIAL WATER & SEWER CUSTOMERS AT VARIOUS MONTHLY CONSUMPTION LEVELS (COMBINED WATER & SEWER BILLS) Monthly Monthly Monthly Bill Bill Average Consumption (Current (Proposed Monthly Annual Per Cent (Gallons) Rates) Rates) * Increase Increase Increase 1,000 $13.50 $18.50 $5.00 $60.00 37.0 2,000 16.52 21.52 5.00 60.00 30.3 4,000 22.56 28.10 5.54 66.48 24.6 6,000 28.60 34.68 6.08 72.96 21.3 8,000 34.64 41.26 6.62 79.44 19.1 10,000 40.68 47.84 7.16 85.92 17.6 15,000 55.78 65.84 10.06 120.72 18.0 20,000 64.88 77.84 12.96 155.52 20.0 25,000 73.98 89.84 15.86 190.32 21.4 30,000 83.08 101.84 18.76 225.12 22.6 40,000 101.28 129.44 28.16 337.92 27.8 50,000 119.48 157.04 37.56 450.72 31.4 75,000 164.98 226.04 61.06 732.72 37.0 100,000 210.48 295.04 84.56 1,014.72 40.2 * Includes $ 5.00 per month "pass through" charge. A-9 CITY OF WYLIE, TEXAS IMPACT OF PROPOSED RATE SCHEDULE ON NON-RESIDENTIAL WATER & SEWER CUSTOMERS AT VARIOUS MONTHLY CONSUMPTION LEVELS (COMBINED WATER & SEWER BILLS) Monthly Monthly Monthly Bill Bill Average Consumption (Current (Proposed Monthly Annual Per Cent (Gallons) Rates) Rates) * Increase Increase Increase 1,000 $13.50 $19.50 $6.00 $72.00 44.4 2,000 16.52 22.52 6.00 72.00 36.3 4,000 22.56 29.10 6.54 78.48 29.0 6,000 28.60 35.68 7.08 84.96 24.8 8,000 34.64 42.26 7.62 91.44 22.0 10,000 40.68 48.84 8.16 97.92 20.1 15,000 55.78 68.84 13.06 156.72 23.4 20,000 70.88 86.84 15.96 191.52 22.5 25,000 85.98 104.84 18.86 226.32 21.9 30,000 101.08 122.84 21.76 261.12 21.5 40,000 131.28 164.44 33.16 397.92 25.3 50,000 161.48 204.04 42.56 510.72 26.4 75,000 236.98 303.04 66.06 792.72 27.9 100,000 312.48 402.04 89.56 1,074.72 28.7 * Includes "pass through" charges. A-10 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY WATER BILLS (ALL CUSTOMERS - CURRENT RATES) 2,000 4,000 10,000 GALLONS GALLONS GALLONS Flower Mound 14.62 Flower Mound 18.82 Flower Mound 31.42 The Colony 13.00 The Colony 16.00 Farmersville 28.59 Lewisville 11.55 Lewisville 15.21 McKinney 26.90 Farmersville 10.51 Farmersville 15.03 Lewisville 26.19 McKinney 10.10 McKinney 14.30 The Colony 25.00 Richardson 8.64 Allen 24.15 Rowlett 8.59 WYLIE 11.96 WYLIE 22.88 WYLIE 8.32 Allen 11.85 Princeton 11.75 Rockwall 22.70 Princeton 8.25 Rowlett 11.67 Princeton 22.25 Allen 7.75 Richardson 11.28 Frisco 21.00 Frisco 7.40 Frisco 10.80 Rowlett 20.91 Rockwall 6.30 Rockwall 10.40 Richardson 19.20 Mesquite 5.85 Mesquite 8.25 Garland 15.72 Plano 5.16 Garland 7.68 Mesquite 15.45 Garland 5.00 Plano 7.48 Plano 14.44 15,000 20,000 30,000 GALLONS GALLONS GALLONS Flower Mound 41.92 Flower Mound * 52.42 Farmersville 73.79 Farmersville 39.89 Farmersville 51.19 Flower Mound * 73.42 McKinney 36.40 McKinney 45.90 Allen 65.15 Lewisville 35.34 Allen 44.65 McKinney 64.90 Allen 34.40 Lewisville 44.49 Princeton 64.00 Rockwall 32.95 Rockwall 43.20 Rockwall 63.70 The Colony 32.50 Princeton 42.00 Lewisville 62.79 WYLIE 31.98 WYLIE 41.08 WYLIE 59.28 Princeton 31.75 The Colony 40.00 The Colony 55.00 Frisco 29.50 Frisco 38.00 Frisco 55.00 Rowlett 28.61 Rowlett 36.31 Rowlett 51.71 Richardson 25.80 Richardson 32.40 Richardson 45.60 Garland 22.42 Garland 28.62 Garland 41.02 Mesquite 21.45 Mesquite 27.45 Mesquite 39.45 Plano 20.24 Plano * 26.04 Plano * 37.64 * Higher rates during summer months. A-11 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY SEWER BILLS (RESIDENTIAL CUSTOMERS - CURRENT RATES) 2,000 4,000 10,000 GALLONS GALLONS GALLONS Garland 12.14 Garland 15.12 Flower Mound (1) 29.76 The Colony 11.50 Flower Mound (1) 14.88 Rowlett 24.08 Flower Mound (1) 9.92 McKinney 12.25 Garland 24.06 Farmersville 9.81 Farmersville 12.11 McKinney 19.75 McKinney 9.75 The Colony 11.50 Princeton (2) 19.10 Allen 9.02 Princeton (2) 11.30 Farmersville 19.01 Princeton (2) 8.70 Plano 11.10 Plano 18.90 Plano 8.50 Rowlett 11.06 Lewisville (1) 18.44 WYLIE 8.20 WYLIE 10.60 WYLIE 17.80 Mesquite 7.55 Allen 9.97 Richardson 13.48 Richardson 7.46 Mesquite 9.05 Allen 12.79 Rowlett 6.72 Frisco 9.00 Mesquite 12.05 Frisco 6.50 Richardson 8.96 The Colony 11.50 Rockwall (1) 5.90 Lewisville (1) 7.94 Rockwall (1) 9.50 Lewisville (1) 4.44 Rockwall (1) 6.80 Frisco 9.00 15,000 20,000 30,000 GALLONS GALLONS GALLONS Flower Mound (1) 42.16 Flower Mound (1) 54.56 Flower Mound (1) 79.36 Garland 31.51 Lewisville (1) 35.94 Lewisville (1) 53.44 Lewisville (1) 27.19 Garland 31.51 Garland 31.51 Farmersville 24.76 Farmersville 24.76 Richardson 28.54 Rowlett 24.08 Rowlett 24.08 Farmersville 24.76 Rowlett 24.08 WYLIE 23.80 WYLIE 23.80 WYLIE 23.80 Princeton (2) 21.70 Princeton (2) 21.70 Plano 21.50 Plano 21.50 Princeton (2) 21.70 McKinney 19.75 Richardson 21.01 Plano 21.50 Richardson 17.25 McKinney 19.75 McKinney 19.75 Allen 12.79 Rockwall (1) 14.00 Rockwall (1) 18.50 Mesquite 12.05 Allen 12.79 Allen 12.79 Rockwall (1) 11.75 Mesquite 12.05 Mesquite 12.05 The Colony 11.50 The Colony 11.50 The Colony 11.50 Frisco 9.00 Frisco 9.00 Frisco 9.00 (1) Monthly bill based on average water consumption during winter months of December, January & February. (2) Based on proposed rates effective 10-1-88. A-12 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY SEWER BITLS (NON-RESIDENTIAL CUSTOMERS - CURRENT RATES) 2,000 4,000 10,000 GALLONS GALLONS GALLONS Frisco 12.00 Frisco 14.90 Flower Mound 29.76 Garland 11.61 Flower Mound 14.88 Rowlett 24.08 The Colony 10.00 Garland 14.06 Frisco 23.60 Flower Mound 9.92 The Colony 13.00 The Colony 22.00 Farmersville 9.81 McKinney 12.25 Garland 21.40 McKinney 9.75 Farmersville 12.11 McKinney 19.75 Allen 9.02 Princeton * 11.30 Princeton * 19.10 Princeton * 8.70 Plano 11.10 Farmersville 19.01 Plano 8.50 Rowlett 11.06 Plano 18.90 Rockwall 8.40 Lewisville 18.44 WYLIE 10.60 WYLIE 8.20 WYLIE 17.80 Allen 9.97 Mesquite 7.55 Rockwall 9.30 Mesquite 13.55 Richardson 7.46 Mesquite 9.05 Richardson 13.48 Rowlett 6.72 Richardson 8.96 Allen 12.79 Lewisville 4.44 Lewisville 7.94 Rockwall 12.00 20,000 30,000 50,000 GALLONS GALLONS GALLONS Flower Mound 54.56 Flower Mound 79.36 Flower Mound 128.96 Rowlett 45.78 Rowlett 67.48 Rowlett 110.88 Frisco 38.10 Lewisville 53.44 Lewisville 88.44 The Colony 37.00 Frisco 52.60 The Colony 82.00 Lewisville 35.94 The Colony 52.00 Frisco 81.60 Garland 33.64 Garland 45.88 Plano 70.90 McKinney 32.25 Plano 44.90 Garland 70.36 Plano 31.90 McKinney 44.75 McKinney 69.75 Farmersville 30.51 Farmersville 42.01 WYLIE 65.80 WYLIE 29.80 WYLIE 41.80 Farmersville 65.01 Princeton * 29.30 Princeton * 38.80 Princeton * 57.80 Mesquite 21.05 Mesquite 28.55 Richardson 43.61 Richardson 21.01 Richardson 28.54 Mesquite 43.55 Allen 17.49 Allen 22.19 Allen 31.59 Rockwall 16.50 Rockwall 21.00 Rockwall 30.00 * Based on proposed rates effective 10-1-88. A-13 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY WATER BITTS (WITH CITY OF WYLIE AMOUNTS REFLECTING PROPOSED RATE SCHEDULE) 2,000 4,000 10,000 GALLONS GALLONS GALLONS Flower Mound 14.62 Flower Mound 18.82 Flower Mound 31.42 The Colony 13.00 The Colony 16.00 Farmersville 28.59 Lewisville 11.55 Lewisville 15.21 McKinney 26.90 Farmersville 10.51 Farmersville 15.03 Lewisville 26.19 10.10 McKinney 14.30 McKinney Richardson 8.64 WYLIE 25.04 Rowlett 8.59 WYLIE 12.50 The Colony 25.00 WYLIE 8.32 Allen 11.85 Allen 24.15 Princeton 11.75 Rockwall 22.70 Princeton 8.25 Rowlett 11.67 Princeton 22.25 Allen 7.75 Richardson 11.28 Frisco 21.00 Frisco 7.40 Frisco 10.80 . Rowlett 20.91 Rockwall 6.30 Rockwall 10.40 Richardson 19.20 Mesquite 5.85 Mesquite 8.25 Garland 15.72 Plano 5.16 Garland 7.68 Mesquite 15.45 Garland 5.00 Plano 7.48 Plano 14.44 15,000 20,000 30,000 GALLONS GALLONS GALLONS Flower Mound 41.92 Flower Mound * 52.42 Farmersville 73.79 Farmersville 39.89 Farmersville 51.19 Flower Mound * 73.42 WYLIE 37.04 WYLIE 49.04 WYLIE 73.04 McKinney 36.40 McKinney 45.90 Allen 65.15 Lewisville 35.34 Allen 44.65 McKinney 64.90 Allen 34.40 Lewisville 44.49 Princeton 64.00 Rockwall 32.95 Rockwall 43.20 Rockwall 63.70 The Colony 32.50 Princeton 42.00 Lewisville 62.79 Princeton 31.75 The Colony 40.00 The Colony 55.00 Frisco 29.50 Frisco 38.00 Frisco 55.00 Rowlett 28.61 Rowlett 36.31 Rowlett 51.71 Richardson 25.80 Richardson 32.40 Richardson 45.60 Garland 22.42 Garland 28.62 Garland 41.02 Mesquite 21.45 Mesquite 27.45 Mesquite 39.45 Plano 20.24 Plano * 26.04 Plano * 37.64 * Higher rates during summer months. A-14 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY SEWER BITTS RESIDENTIAL CUSTOMERS (WITH CITY OF WYLIE AMOUNTS REFUTING PROPOSED RATE SCHEDULE) 2,000 4,000 10,000 GALLONS GALLONS GALLONS WYLIE 13.20 WYLIE 15.60 Flower Mound (1) 29.76 Rowlett 24.08 Garland 12.14 Garland 15.12 Garland 24.06 The Colony 11.50 Flower Mound (1) 14.88 Flower Mound (1) 9.92 McKinney 12.25 WYLIE 22.80 Farmersville 9.81 Farmersville 12.11 McKinney 9.75 The Colony 11.50 McKinney 19.75 Allen 9.02 Princeton (2) 11.30 Princeton (2) 19.10 Princeton (2) 8.70 Plano 11.10 Farmersville 19.01 Plano 8.50 Rowlett 11.06 Plano 18.90 Mesquite 7.55 Allen 9.97 Lewisville (1) 18.44 Richardson 7.46 Mesquite 9.05 Richardson 13.48 Rowlett 6.72 Frisco 9.00 Allen 12.79 Frisco 6.50 Richardson 8.96 Mesquite 12.05 Rockwall (1) 5.90 Lewisville (1) 7.94 The Colony 11.50 Lewisville (1) 4.44 Rockwall (1) 6.80 Rockwall (1) 9.50 Frisco 9.00 15,000 20,000 30,000 GALLONS GALLONS GALLONS Flower Mound (1) 42.16 Flower Mound (1) 54.56 Flower Mound (1) 79.36 Garland 31.51 Lewisville (1) 35.94 Lewisville (1) 53.44 Garland 31.51 Garland 31.51 WYLIE 28.80 WYLIE 28.80 WYLIE 28.80 Lewisville (1) 27.19 Farmersville 24.76 Farmersville 24.76 Richardson 28.54 Rowlett 24.08 Rowlett 24.08 Farmersville 24.76 Princeton (2) 21.70 Princeton (2) 21.70 Rowlett 24.08 Plano 21.50 Plano 21.50 Princeton (2) 21.70 McKinney 19.75 Richardson 21.01 Plano 21.50 Richardson 17.25 McKinney 19.75 McKinney 19.75 Allen 12.79 Rockwall (1) 14.00 Rockwall (1) 18.50 Mesquite 12.05 Allen 12.79 Allen 12.79 Rockwall (1) 11.75 Mesquite 12.05 Mesquite 12.05 The Colony 11.50 The Colony 11.50 The Colony 11.50 Frisco 9.00 Frisco 9.00 Frisco 9.00 (1) Monthly bill based on average water consumption during winter months of December, January & February. (2) Based on proposed rates effective 10-1-88. A-15 SELECTED CITIES RANKED AS TO AMOUNT OF MONTHLY SEWER BILLS (NON-RESIDENTIAL CUSTOMERS - CURRENT RATES) (WITH CITY OF WYLIE AMOUNTS REFLECTING PROPOSED RATE SCHEDULE) 2,000 4,000 10,000 GALLONS GALLONS GALLONS WYLIE 14.20 WYLIE 16.60 Flower Mound 29.76 Rowlett 24.08 Frisco 12.00 Frisco 14.90 Garland 11.61 Flower Mound 14.88 WYLIE 23.80 The Colony 10.00 Garland 14.06 Flower Mound 9.92 The Colony 13.00 Frisco 23.60 Farmersville 9.81 McKinney 12.25 The Colony 22.00 McKinney 9.75 Farmersville 12.11 Garland 21.40 Allen 9.02 Princeton * 11.30 McKinney 19.75 Princeton * 8.70 Plano 11.10 Princeton * 19.10 Plano 8.50 Rowlett 11.06 Farmersville 19.01 Rockwall 8.40 Allen 9.97 Plano 18.90 Mesquite 7.55 Rockwall 9.30 Lewisville 18.44 Richardson 7.46 Mesquite 9.05 Mesquite 13.55 Rowlett 6.72 Richardson 8.96 Richardson 13.48 Lewisville 4.44 Lewisville 7.94 Allen 12.79 Rockwall 12.00 20,000 30,000 50,000 GALLONS GALLONS GALLONS Flower Mound 54.56 Flower Mound 79.36 Flower Mound 128.96 Rowlett 45.78 Rowlett 67.48 Rowlett 110.88 Frisco 38.10 Lewisville 53.44 Lewisville 88.44 Frisco 52.60 The Colony 82.00 WYLIE 37.80 The Colony 52.00 Frisco 81.60 The Colony 37.00 WYLIE 49.80 WYLIE 75.80 Lewisville 35.94 Garland 33.64 Garland 45.88 Plano 70.90 McKinney 32.25 Plano 44.90 Garland 70.36 Plano 31.90 McKinney 44.75 McKinney 69.75 Farmersville 30.51 Farmersville 42.01 Farmersville 65.01 Princeton * 29.30 Princeton * 38.80 Princeton * 57.80 Mesquite 21.05 Mesquite 28.55 Richardson 43.61 Richardson 21.01 Richardson 28.54 Mesquite 43.55 Allen 17.49 Allen 22.19 Allen 31.59 Rockwall 16.50 Rockwall 21.00 Rockwall 30.00 * Based on proposed rates effective 10-1-88. A-16