1 NORTH VALLEY REGIONAL WATER AND WASTEWATER PROJECTS MEETING OF THE NEW MEXICO-TEXAS WATER COMMISSION May 19, 2005

2 PROJECT SPONSORS  Doña Ana MDWCA  Ft. Selden Water Company  Leasburg MDWCA  Jornada Water Company  Picacho MDWCA

3 PROJECT OVERVIEW  Wastewater Collection System from Radium Springs to the Las Cruces city limits (85 square miles/121 miles of collection lines)  2.0 MGD Wastewater Treatment Plant – Reclamation/Reuse  2.0 MGD Surface Water Treatment Plant –Supply Treated Surface Water to Domestic Water Providers

4 PROJECT OBJECTIVES  Groundwater Protection –Quantity (Groundwater, Surface Water) –Quality (Salinity, Septic Contamination)  Extend Water Service to Drought-Affected Residents  Conjunctive Water Management –Surface Water –Groundwater

5 PROJECT DEMOGRAPHICS  Total Population of Service Area: 18,300+  Total Households in Service Area: 6,000  Total Minority Population: 55%  Service Area Contains 8 Designated Colonias

6 TREATMENT PLANT SITE  Site 1 – Radium Springs  Site 2 – Radium Springs  Site 3 – South of Radium Springs  Site 4 – Near Community of Hill  Site 5 – Near Doña Ana County Transfer Station/East of I-25

7 EXISTING WATER SYSTEMS  Doña Ana MDWCA9,695  Fort Selden Water Co. 973  Jornada Water Company 260  Leasburg MDWCA 975  Leasburg State Park 40  Picacho MDWCA 977  + Approximately 1,200 individual wells serving remaining residents

8 EXISTING WASTEWATER SYSTEM  Wastewater Customers259  Design Capacity: Up to 550 Connections  Number of Septic Tanks/Cesspools6,000

9 FUTURE WATER SYSTEM  Water Connection Customers6,000  Population Served18,300+  Annual Average Water Use140 gpcd  Peak Demand5.2 MGD  Well Capacity3.5 MGD  Water Treatment Capacity2.0 MGD  Water Storage Capacity 5.0 MGD

10 FUTURE WASTEWATER SYSTEM  Wastewater Customers6,000  People Served18,300+  WW Treatment Plant Capacity2.0 MGD –2.0 MGD tertiary treated water available for reuse/reclamation

11 WATER TREATMENT ALTERNATIVES  Membrane Filtration  Conventional Water Treatment  ActiFloc System (Mixed Media Filtration) Estimated Construction Cost: $ $6.00/1,000 gallons

12 WATER DISTRIBUTION ALTERNATIVES  Water diversion from Leasburg Canal  Dedicated water transmission lines  Bulk water sales  New storage  Existing storage

13 WATER TREATMENT CHALLENGES  Diversion and pumping  Water storage and distribution  Sediment  Quality fluctuations  No year-round surface water supply

14 WASTEWATER COLLECTION ALTERNATIVES  On–site SystemsNot considered  Pressure Systems$0.75 million  Vacuum Sewer$ 25 million  Gravity Sewer$110 million

15 WASTEWATER TREATMENT ALTERNATIVES  Sequencing Batch Reactor  Conventional Activated Sludge Plant  Pre-Engineered Activated Sludge Plant  Membrane Bioreactor  STM-Aerotor Estimated Construction Cost: $ $6.00/1,000 gallons

16 ESTIMATED PROJECT COST  Wastewater Collection$25,000,000  Wastewater Treatment Plant$6,000,000  Surface Water Treatment Plant $6,500,000  Water Distribution Improvements $3,500,000 TOTAL COST$41,000,000 CURRENTLY FUNDED$ 4,266,500 FUNDING REQUIRED$38,233,500

17 CURRENT FUNDING SOURCES  State Appropriations$1,405,400  BECC$230,000  Federal Appropriations$1,289,000  CDBG Grants$256,000  NMFA Grants$425,000  NMED – RIP Loan$500,000  LRGWUO$28,000  Doña Ana MDWCA$78,889 Total Funds in Hand$4,266,500

18 FUNDING APPLICATIONS PHASE I CONSTRUCTION  Federal Appropriations (2005)$12,000,000  Water Trust Board $10,250,000  USDA-Rural Development$ 7,000,000  NMFA W/WW Grant Fund$10,000,000 Total Funding Applications$39,250,000

19 PROJECT SCHEDULE  Planning 2003/2005  Design 2005/2006  Construction –2007 Wastewater Collection System & Treatment Plant –2006 Surface Water Treatment Plant

20 CONCLUSION  Proactive Approach  Regional Effort for Conjunctive Water Resource Management  Groundwater Conservation/Protection  New Regulatory Precedent