City Of Wichita Falls Status of Water Resources Darron Leiker City Manager
February 27, 2014
Causes of Problem Loss of Rainfall
Normal
The annual average rainfall for the Wichita Falls area is 28.5 inches. In 2011 we were 15.5 inches below normal.
20�
In 2012 we were 8.75 inches below normal. In 2013 we were 7.24 inches below normal. Over 33 inches below normal for the past 3 years
10�
2011
2012
2013
Causes of Problem Record Temperatures
Normal
Wichita Falls typically averages 28 days over 100 degrees In 2011 we had 100 days. The Weather Channel ranked Wichita Falls the Worst Summer anywhere in the U.S. for 2011.
In 2012 we had 50 days. In 2013 we had 32 days.
50 Days
2011
2012
2013
State of the Drought 2011
October 2011
State of the Drought 2014
*
February 2014
Water System Improvements Since 2000 (Treatment Side)
• • • • • • • • • • •
Jasper WTP Expansion Improvements Cypress Conventional WTP Expansion High Service Pump Station Sludge Dewatering Facilities Chemical Building Secondary Reservoir Pump Station Expansion Ground Storage Tank Expansion Elevated Storage Tank Expansion Administration and Maintenance Facilities Total System Capacity 76 MGD Cost $118 million. Water rates were hiked ~80%
Water System Improvements Since 2000 (Supply Side)
What is Being Done Drought Triggers to Date
Lakes at Lakes at 82.3% Lakes at 59.4% 97.2%
2010
2011
Triggered Stage 1 Drought Watch (8/15/11)
• • •
Lakes at 49.8%
2012
Triggered Stage 2 Drought Warning (7/2/12)
Lakes at 39.8%
Lakes at 30%
2013
Triggered Stage 3 Drought Emergency (2/5/13)
Denotes a Water Resources Committee Meeting City has been much more aggressive with restrictions during this drought. Stage 5 to trigger in May 2014 Conservation efforts saved over 2.5 Billion gallons (35%) in 2013
Triggered Stage 4 Drought Disaster (11/16/13)
Emergency Reuse Project • Direct Potable Reuse (DPR) Project engineering started in 2012 • Temporary Pump Station and 12-mile pipeline to convey 7.5 MGD of treated effluent from RRWWTP to Cypress Microfiltration/Reverse Osmosis Plant • Treat water through both membrane plants • Blend water with lake water 50/50 ratio • Treat blended water through conventional treatment plant (water is treated 4 times)
Emergency Reuse Project
• Construction ($13 MM) began August 23, 2013 • TCEQ approval in September 2013 • Full Scale Verification testing began January 27, 2014 • Water in system ~ May 2014 • Project will add 5 to 6 million gallons per day to the water supply (all effluent is utilized)
Emergency Reuse Project
DPR Pipeline
Emergency Reuse Project
Emergency Reuse Project
Emergency Reuse Project
Emergency Reuse Project
Permanent Reuse Project
• (IPR) Alternatives Evaluated • • • •
Discharge to Lake Arrowhead ~$29,000,000 Discharge to Lake Wichita ~$158,300,000 Construct new MF/RO Plant at Cypress ~$91,000,000 Construct new MF/RO Plant at Jasper ~$81,000,000
• Discharge to Lake Arrowhead identified as most economical and feasible.
Permanent Reuse Project • Project requires: • Discharge permit from TCEQ • Permit app submitted Dec 20, 2013
• Improvements to River Road WWTP • Design to begin after permit issued
• 15 miles of ROW acquisition • Acquisition is underway
• Construction of pipeline and pump station • 4 years to complete
Ringgold Reservoir
• • • • •
Feasibility Study Completed in December 2013 Reservoir size evaluated (firm yield, total acres required) Dam site evaluated (geotechnical analysis) Environmental conflicts evaluated (wetlands, endangered species, archeological sites, etc.) Other conflicts identified (roads, oil/gas wells, etc.)
• • •
Viable supply lake similar in size to Lake Arrowhead Project will take est. 20 years from start to finish Cost Estimate = $350 million
Other Supply Alternatives Investigated • Other Surface Water • • • •
Lake Waurika Lake Bridgeport Wichita River Red River
• Not viable due to distance, available volume, and lack of willing seller • Last 50,000 acft available in Lake Kemp
Other Supply Alternatives Investigated • Groundwater • • • • •
Seymour aquifer very sporadic Very low volumes available (5 to 15 gpm) Poor water quality (very high Nitrates) City does not own land for well field Collection system required
• Currently looking at the Blaine Aquifer in West Texas • Very poor, brackish water. Would need a large desalination facility, and 80+ mile pipeline.
Other Supply Options • Develop remaining water in Lake Kemp • 10 MGD max amount • Treatment Plant Capacity of MF/RO Plant
• Supplement with DPR from RRWWTP • Would require portable RO Skids
• Could supply up to 13 - 14 MGD • Water likely exceed secondary drinking water standards for Total Dissolved Solids (TDS) • All the above requires approval from TCEQ
Stage 5 • Stage 5 implemented at 25% combined lake capacity - as early as May • Water Resources Commission finalizing their recommendations • Will go to City Council for approval in March • Will likely contain ban on filling of swimming pools (public and private) with city water, further car wash closures, no watering of foundations, and increase in surcharges • These are only recommendations • City Council has the final say
Questions?
Please contact me anytime darron.leiker@wichitafallstx.gov 761-7404