Johnson County Special Utility District Water Conservation Plan TABLE OF CONTENTS Section 1. 2. 3. 4. Description INTRODUCTION 1.1 Purpose 1.2 History Page 1 1-2 UTILITY PROFILE 2.1 Existing Water Supplies 2.2 Wholesale Customers 2.3 Water Distribution System Schematic Diagram 2.4 Water Storage Tanks & Pump Stations 2.5 Wastewater System 2.6 Lake Granbury Surface Water and Treatment System 2.7 Brazos G Plan 2.8 Region C Plan 3 3-4 4-5 5a 6-7 8 9 9 10 HISTORICAL AND PROJECTED WATER USE 3.1 Historical & Growth Projections 3.2 Projected Water Demands 11-13 14 CONSERVATION GOALS 4.1 Specification of Goals 4.2 Metering and Records 4.3 Continuing Education 4.4 Water Rates 4.5 Other Conservation Measures 4.6 Implementation of Plan 15 16-18 19 20 21-22 23 1. INTRODUCTION 1.1 Purpose Regulations promulgated by the Texas Commission on Environmental Quality (TCEQ) require a water conservation plan to be developed by wholesale water suppliers. The objective of a water conservation plan is to conserve water supplies to reduce the quantity of water that facilities must handle. JCSUD uses its best efforts to implement a Water Conservation Plan in order to promote the conservation of available water supply, and/or to protect the integrity of the water supply facility, and to protect and preserve public health. Johnson County Special Utility District (JCSUD) maintains an updated Water Conservation Plan. In 1990, the Johnson County Rural Water Supply Corporation originally developed a Water Conservation/Drought Contingency Plan to meet Texas Administrative Code (TAC) Title 30, Chapter 288 requirements and was submitted to the Texas Water Development Board (TWDB) for approval. TWDB approved the plan.. The Board of Directors passed a resolution on July 11, 1990 putting the plan in place. Likewise, in 2002, 2006 and 2009, a resolution was adopted for accepting the updated plan. The service area of the JCSUD consists of approximately 348 square miles in Johnson, Tarrant, Hill, and Ellis Counties, Texas. JCSUD covers about three-fourths of unincorporated Johnson County. Over 95% of the customers are in Johnson County. The service area has a Certificate of Convenience and Necessity originally issued in November 1979. This document essentially is a franchise authorization, which allows only JCSUD to provide water service within this area. Currently the system provides about 30% ground water from existing wells and 70% from surface water. The surface water comes from Lake Granbury in Hood County. JCSUD has entered into a long-term raw water contract for 13,210 acre-feet of water. 1.2 History The District began as a member-owned, non-profit water supply corporation. The Johnson County Water Supply Corporation, organized and chartered under the laws of the State of Texas as a non-profit corporation, began providing water service to its initial members in 1965. At that time, there were 305 water users. Funds for providing the service were made available to the Corporation through a loan from the Farmers Home Administration (FmHA). In 1984, the Corporation had 5,116 rural families being served and the growth trend for the county continued. In 1985, the Corporation, along with a smaller neighboring water system, Johnson County Fresh Water District, recognized that the supply of well water would not continue to sustain the growth in Johnson County. Consequently, the Brazos River Authority was asked to do a feasibility study on Water Conservation Plan Johnson County SUD 1 transporting surface water from Lake Granbury to the two systems in Johnson County, some 24 miles away. The need for surface water as a more reliable source was becoming increasingly urgent, as ground water levels in the northwest part of the country were experiencing serious decline. By 1989, Johnson County was receiving treated water from Lake Granbury. The Brazos River Authority had issued public bonds to fund the construction of the Surface Water and Treatment System (SWATS) that eventually would treat and serve 3.5 MGD to the Corporation, Johnson County Fresh Water District, Acton Municipal Utility District and the City of Granbury. The SWATS plant was fitted with a desalinization unit to remove excessive chloride and sulfate by a process known as Electrodialysis Reversal by the IONICS Corporation. In 1992, the TNRCC granted JCRWSC an alternate capacity requirement rating of .5 gpm per connection. Two years after receiving the ACR, the Corporation was supplying about 7000 connections with only 1.625 MGD of surface water capacity from the SWATS treatment plant (Surface Water And Treatment System) on Lake Granbury operated by the Brazos River Authority. The annual audit in 1994 reported the asset value for the distribution system at $13.6 million. In March 2000, the Board of Directors voted to convert Johnson County Rural Water Supply Corporation to a SUD (special utility district). Enabling legislation in the 1980’s allowed for member-owned water supply corporations to become a political subdivision of the state via becoming a SUD. After several years of contemplating whether such a conversion would be feasible, it was determined that indeed becoming a district was in the best interest of the ratepayers. The decision was made based on the favorable economy of issuing tax-exempt bonds for capital improvement projects, becoming sales tax exempt, and being eligible to participate in the state-sponsored insurance risk pool and avoid the high cost of liability insurance in the open market. The application process took more time than usual because several cities opposed the conversion. In order to arrive at a consensus, an inter-local agreement was forged with the cities and a bill was submitted to the legislature for passage. Finally after 3½ years, the process was approved and the organization began operating as a District in January 2004. Today, JCSUD is the largest Special Utility District in Texas. Merging the Fresh Water District’s (FWD) operation into JCSUD yields some 14,500 connections, or service provided to a population of 40,000. The management and employees at JCSUD have honed and polished their skills to maintain a level of efficiency that is exemplary among rural water systems in Texas. Likewise, the Board of Directors is committed to provide direction and support that affords the best possible service within the financial means to continue with the spirit of “people helping people.” Water Conservation Plan Johnson County SUD 2 2. UTILITY PROFILE 2.1 Existing Water Supplies The service area of the JCSUD consists of approximately 348 square miles in Johnson, Tarrant, Hill, and Ellis Counties, Texas. JCSUD covers about three-fourths of unincorporated Johnson County. About 95% of the customers are in Johnson County. The service area has a Certificate of Convenience and Necessity originally issued in November 1979. This document essentially is a franchise authorization, which allows only JCSUD to provide water service within this area. Currently the system provides about 30% ground water from existing wells and 70% from surface water. The surface water comes from Lake Granbury in Hood County. JCSUD has a long-term raw water contract with Brazos River Authority for 13,210 acre-feet of water. Based on the TCEQ exemption of .5gpm per connection, forecasts show this reserve to extend through 2040. The water supply for JCSUD is provided from three (3) sources. A fourth source will be available in the near future from Grand Prairie. The water supply assessment is based on a maximum day condition. For over 95% of the time, because of fluctuations in water usage, the capacity will not be fully utilized. In general a maximum day or a condition approximating maximum day occurs three (3) to five (5) times per year and then in only drought years. The water supply sources are a series of long term contracts with the Brazos River Authority (BRA), water wells owned by JCSUD, and water purchase agreements with the City of Mansfield and Grand Prairie. Table 1 shows the current water supply capabilities. Current Water Supply Source BRPUA SWATS Plant Wells Mansfield Contract Grand Prairie TOTALS TABLE 1 JCSUD WATER SUPPLY Capacity Capacity Connections at MGD gpm 0.5 gpm 0.6 gpm 7.19 3.22 9.00 6.00 25.41 4,993 2,236 6,250 4,167 17,646 9,986 4,472 12,500 8,334 35,292 8,322 3,727 10,417 6,945 29,411 2.2 Wholesale Customers JCSUD provides wholesale water on an as-needed basis to six customers that have contracts with JCSUD: the City of Alvarado, Monarch Utilities, Blue Water Oaks, Walnut Creek MHP, Bethany SUD and the City of Keene. JCSUD also provides water to Bell Manor (no contract). For alternative capacity requirement calculations, the water supply provided to these wholesale water customers were subtracted from JCSUD’s daily production values, except for Walnut Creek MHP. The number of active JCSUD connections does not include connections within the wholesale water Water Conservation Plan Johnson County SUD 3 customer systems for the City of Alvarado, Monarch Utilities, Blue Water Oaks, and Bell Manor. JCSUD also provides water supplies for temporary and unusual water demands for fire protection, oil and gas drilling operations and road construction. The District’s Long Range Water Supply Plan includes supplying the growing demand of its wholesale customers just like caring for the retail customer demand. Table 1 shows the maximum water capacity of 25.41 MGD. Accordingly, as long as the District maintains its .5gpm per connection with TCEQ, this capacity will cover the needs through the 2040 growth projection. 2.3 Water Distribution System The JCSUD water distribution system is very complex as detailed in the Schematic Diagram (page 5a). The system started initially as a rural water supply system. However, as the water supply demands increased, the nature of the water distribution system has started to change to a suburban system with some commercial requirements. The system consists of approximately 860 miles of water pipe ranging in sizes from twenty four (24) inch diameter pipe down to one (1) inch diameter pipe. Table 2 shows an approximate quantity of the water distribution pipe infrastructure. TABLE 2 Distribution System Piping Length Diameter Feet Miles 1 30,936 5.86 1.5 237,719 45.02 2 315,427 59.74 2.5 113,440 21.48 3 818,453 155.01 4 637,817 120.80 6 1,162,125 220.10 8 624,631 118.30 10 60,399 11.40 12 298,845 56.60 16 55,987 10.60 *18 25,859 4.90 20 6,617 1.25 *24 164,997 31.20 Total 4,553,252 862.26 *Transmission System Piping Water Conservation Plan Johnson County SUD 4 The water distribution system consists of four (4) principal components; water supply, water storage tanks, pump stations, and distribution piping. The system started initially as a rural water supply system. It has been built by the mergers of at least five (5) separate entities into the current system. In addition, at least three (3) investor owned or neighborhood water associations have also been absorbed into the JCSUD system. The system is divided into pressure planes for best management of the system. The pressure planes are geographic sub-areas of the entire water system. The purpose of a pressure plane is to control the minimum and maximum water pressure within an area. The system is split into fifteen (15) pressure planes. Pressure Planes 1, 8, 13, 24, 25, 34, and 36 have elevated storage tanks to meet peak hourly conditions. Pressure Planes 3, 5, 9, 10, 18, 19, and 20 have ground storage and pressure tanks to meet peak hourly conditions. Pressure Plane 25M is served from Mansfield and its peak hour conditions are met through the Mansfield system. Water Conservation Plan Johnson County SUD 5 2.4 Water Storage Tanks and Pump Stations: Water Storage Tanks - JCSUD has a number of water storage facilities, both elevated tanks and ground tanks. The required capacity for water storage is regulated by TCEQ. The capacity requirement is 200 gallons per connection. If a pressure plane has more than 2,500 connections, at least 100 gallons per connection must be elevated storage. JCSUD owns a 3MG elevated, ground storage standpipe, better known as the TST (Transmission Storage Tank) located on Brushy Nob, just west of Joshua. JCSUD has over 7MG of ground storage including the TST, and 5MG of elevated storage. Another 1MG of ground storage is planned at each of the two new pump stations. Plant 26 and 27 are expected to be online by summer 2014. Table 3 below shows the current JCSUD water storage availability. Pressure Plane 1 13 8 24 25 3 5 9 10 18 19 20 25M 34 36 Plants 1 17 13 11 8 21 24 16 25 14 15 3 5 9 10 18 19 20 25M 34 36 35 Totals Water Conservation Plan Johnson County SUD Table 3 JCSUD Water Storage Capacity Capacity All Ground Tank(s) Elevated Tank Gal. Gal. 1MG 500K 750K 300K 1MG 3.5MG 500K 200K 500K 100K 100K 500K 200K 100K 100K 100K 500K 500K 200K 750K 500K 950K 500K 100K 5MG 12MG 100K 7MG 6 Total Capacity Storage Tank(s) Gal. 1MG 500K 750K 300K 1MG 3.5MG 500K 200K 500K 100K 100K 500K 200K 100K 100K 100K 500K 500K Pump Stations - Each pressure plane except for 25M has at least one (1) pump station associated with it. Two (2) of the pump stations (Plants 11 and 21) have vertical turbine pumps. All of the others have split case centrifugal pumps. Table 4 shows the existing pumping capacity at each plant. Pressure Plane 1 13 8 24 25 3 5 9 10 18 19 20 25M 34 36 TABLE 4 JCSUD Pump Stations Capacity Booster Pumps Plants gpm 1 17 3,600 13 11 2,150 8 21 4,400 24 16 1,250 25 14 980 15 980 3 1,600 5 860 9 800 10 440 18 600 19 2,100 20 1,200 25M 34 1,500 36 35 1,500 Total 23,960 The principal criteria used to establish the water system requirements are derived from the Texas Commission on Environmental Quality (TCEQ) which established water system regulations in Chapter 290. These criteria define water supply requirements and water distribution system requirements including facility sizes. These were used in developing the Master Plan. Currently JCSUD has an exemption for the water supply requirements of 0.6 gpm per connection to 0.5 gpm per connection. This is a 20 percent savings. TCEQ has asked JCSUD to provide more data to maintain the exemption. The maximum day criteria generally govern the size of the water supply requirements. Water Conservation Plan Johnson County SUD 7 2.5 Wastewater System A. Wastewater System Data 1. Design capacity of wastewater treatment plant(s): 0.70 MGD 2. Is treated effluent used for irrigation on-site? Yes; off-site? Yes; plant washdown? Yes; or chlorination/dechlorination? Yes If yes, approximately 3.5 M_ gallons per month. 3. Brief Description of the Wastewater System: Johnson County Special Utility District (JCSUD) owns and operates its collection system and wastewater treatment plant under TCEQ permit number WQ0014350001. The collection system serves the city limits of Joshua and part of Burleson. The system has eight lift stations and approximately 30 miles of sewer main. The JCSUD wastewater treatment facility operates in extended aeration mode and is designed to treat 0.70 MGD. The treatment facility has influent screens, two aeration basins, two circular clarifiers, an intra-channel boat clarifier, head lift station, RAS lift station and a chlorine contact chamber. Effluent from the treatment facility is discharged into an un-named tributary, then to Village Creek and finally ends up in Lake Arlington. B. Wastewater Data for Service Area 1. Percent of water service area served by wastewater system: 12% 2. Monthly volume treated for previous three years (in 1,000 gallons): Year 2009 Year 2010 Year 2011 9,237,000 8,360,000 10,558,000 9,881,000 11,285,000 9,304,000 9,790,000 9,680,000 14,128,000 16,997,000 13,568,000 13,190,000 12,483,000 17,519,000 19,238,000 13,629,000 12,165,000 10,539,000 10,961,000 9,631,000 12,552,000 9,917,000 8,982,000 10,290,000 11,120,000 10,656,000 10,998,000 11,580,000 12,905,000 10,772,000 6,851,000 6,913,000 7,280,000 11,082,000 9,600,000 11,367,000 135,978,000 147,906,000 121,124,000 January February March April May June July August September October November December Total Water Conservation Plan Johnson County SUD 8 2.6 Lake Granbury Surface Water and Treatment System The Brazos Regional Public Utility Agency (BRPUA) owns and operates the Lake Granbury Surface Water and Treatment System (SWATS) which provides water to retail customers in Johnson and Hood Counties. The SWATS project is classified as a wholesale public water supplier and serves two retail water customers that are JCSUD and Acton Municipal Utility District (AMUD). These customers of the SWATS project entered into a 50-year contract with the BRA to obtain treated water for the contract amount. Each retail water supplier already has in place its own water conservation plan. The BRA has implemented a Water Conservation Plan/Drought Contingency Plan in order to promote the conservation of available water supply, and/or to protect the integrity of the water supply facility, and to protect and preserve public health. 2.7 Brazos G Plan – Johnson County The Brazos G Regional Water Plan shows that the reliable groundwater supply in Johnson County is insufficient to provide for all of the water suppliers currently using groundwater. As a result, the plan has many of the smaller suppliers in the county purchasing treated surface water from other suppliers. The Brazos G Regional Water Plan included development of additional supplies through reuse as a recommended water management strategy for Cleburne and Johnson County Special Utility District. Conservation was considered for all water suppliers, and advanced conservation was recommended for those with a projected municipal use in excess of 140 gallons per person per day in 2060. The water management strategies proposed for Johnson County in the Brazos G Regional Water Plan included the following: Conservation for suppliers with projected municipal water use over 140 gallons per person per day (Cleburne, Grandview, Johnson County SUD, Mountain Peak SUD, and Johnson County-Other) Purchase water from Johnson County SUD (Bethany WSC, Parker WSC, Rio Vista, and Johnson County-Other) Purchase more water from Fort Worth (Bethesda WSC and Burleson) Purchase water from Brazos River Authority SWATS (Godley and Johnson County Freshwater Supply District No. 1/Joshua). Since the 2006 Plan, Johnson County Freshwater Supply District No. 1 has merged and become part of Johnson County SUD. Johnson County SUD now provides water supplies to the City of Joshua. Purchase from Midlothian (Mountain Peak SUD) or Midlothian via Venus (Alvarado). Participate in reuse projects (Cleburne and Johnson County SUD) Water Conservation Plan Johnson County SUD 9 2.8 Region C Plan – Johnson County Johnson County exists in the Brazos G Water Planning area; however, the BrazosTrinity basin divide-line bisects the county diagonally as it down-dips from the northwest corner to the southeast corner. The Brazos River Authority and the Tarrant Regional Water District jointly supports the ideals of JCSUD supplying retail and wholesale customers with source water from both basins. TRWD continues to consider the Trinity River Basin portion of Johnson County to be within its service area. However, TRWD will continue to coordinate water supply service it provides in Johnson County with the BRA. Johnson County Special Utility District (SUD) accounts for about 30% of the municipal water demand in Johnson County. In 2006, Johnson County SUD developed a long range water supply plan that included an evaluation of additional water supplies from the Trinity and Brazos River Basins. During the study, JCSUD met with local and regional water providers. Based on information from meetings, potential future supplies from TRWD were identified (either directly or indirectly through their primary customers) for projected demands in the Trinity Basin portion of Johnson County. TRWD requires a system capacity buy-in for new or increased contract amounts. The cost of the buy-in is based on the value of the existing system components. TRWD’s primary customers (Fort Worth, Arlington, Mansfield and TRA Tarrant County Water Supply Project) have “all needs” contracts and do not pay system buy-in costs for increased use. This is due to their obligation to meet all system revenue requirements. Other customers pay a buy-in cost for new contract water volumes or increases in contract water volumes. In 2009 and 2010, JCSUD executed water purchase agreements of 9MGD and 6MGD with the City of Mansfield and Grand Prairie respectively. Region C recognizes JCSUD as a wholesale customer to these entities in the current water plan. JCSUD expects to have its Trinity Basin Transfer Facilities project (12 mile 30” pipeline and two pump stations) complete and online by summer of 2014 to begin taking water from the City of Mansfield. Water Conservation Plan Johnson County SUD 10