May 2017 RESERVOIR STORAGE*
TexasWaterConditionsReportMay 2017 RESERVOIR STORAGE*At the end of May 2017, total conservation storage* in 118 of the state’s major water supply reservoirswas at 27.4 million acre-feet or 85 percent of total conservation storage capacity. This is approximately0.16 million acre-feet more than a month ago but 0.40 million acre-feet less than storage at this timelast year.Forty-one (41) reservoirs held 100 percent of conservation storage capacity, primarily in the NorthCentral (17 reservoirs) and East (18 reservoirs) regions. One reservoir, Palo Duro (1 percent), remainedbelow 10 percent full.Total combined storage was at or above normal (storage 70 percent) in the East (99 percent), UpperCoast (98 percent), South Central (97 percent), North Central (97 percent), and Low Rolling Plains (79percent) regions. The High Plains (22 percent) and Trans-Pecos (34 percent) regions had the lowestpercentage of storage. Overall, storage increased in two regions but declined in seven regions over thepast month.*Storage is based on end of the month data in 117 major reservoirs that represent 96 percent of the total conservationstorage capacity of 188 major water supply reservoirs in Texas plus Elephant Butte reservoir in New Mexico. Majorreservoirs are defined as having a conservation storage capacity of 5,000 acre-feet or greater. Only the Texas share ofstorage in border reservoirs is counted.1700 N. Congress Ave., P.O. Box 13231, Austin, TX 78711-3231Telephone (512) 463-7847 Fax (512) 936-0816 1-800-RELAYTX (for the hearing impaired)www.twdb.texas.gov
MAY 2017 RESERVOIR CONDITIONS*Reservoir Storage Index is defined as the percent full of conservation storage capacity.
CONSERVATION STORAGE DATA FOR SELECTED MAJOR TEXAS RESERVOIRSName of lake or reservoirMacKenzie ReservoirMeredith, LakePalo Duro ReservoirWhite River LakeTOTALConservationstorage 6Abilene, LakeAlan Henry ReservoirChampion Creek ReservoirColeman, LakeColorado City, LakeFort Phantom Hill, LakeGreenbelt LakeHords Creek LakeJ. B. Thomas, LakeKemp, LakeMillers Creek ReservoirNorth Fork Buffalo CreekReservoirStamford, LakeSweetwater, Amon G Carter, LakeAquilla LakeArlington, LakeArrowhead, LakeBardwell LakeBelton LakeBenbrook LakeBonham, LakeBridgeport, Lake*Brownwood, Lake*Cisco, LakeCrook, LakeEagle Mountain LakeGeorgetown, LakeGraham, LakeGranbury, LakeGranger LakeGrapevine Lake*Halbert, LakeHubbard Creek ReservoirHubert H Moss LakeJim Chapman Lake (Cooper)Joe Pool LakeKickapoo, LakeLavon LakeLeon, LakeLewisville LakeLimestone, Lake*Lost Creek Reservoir*Mineral Wells, LakeMountain Creek, Conservation storageend of May 2017(acre-feet)(%)HIGH PLAINS6,97015123,2832581116,62522137,68922LOW ROLLING 4218145,603882,94324709,32879NORTH ,656985,0979722,850100Change sinceend of April 2017(acre-feet)**(%)Change sinceend of May 2101-4-100-6928-89925-7566-20-0no 4-5-16-20-2-30
CONSERVATION STORAGE DATA FOR SELECTED MAJOR TEXAS RESERVOIRSName of lake or reservoirNavarro Mills LakeNew Terrell City LakeNocona, Lake (Farmers Crk)Palo Pinto, LakePat Cleburne, Lake*Pat Mayse LakePossum Kingdom LakeProctor LakeRay Hubbard, LakeRay Roberts, LakeRichland-Chambers ReservoirSquaw Creek, LakeStillhouse Hollow LakeTawakoni, LakeTexoma, Lake (Texas)Texoma, Lake (Texas &Oklahoma)Waco, LakeWaxahachie, LakeWeatherford, LakeWhitney, LakeWorth, LakeTOTALAthens, LakeB A Steinhagen LakeBob Sandlin, LakeCaddo, LakeCedar Creek Reservoir in TrinityCherokee, LakeConroe, LakeCypress Springs, LakeFork Reservoir, LakeHouston County LakeJacksonville, Lake*Livingston, LakeMartin, LakeMonticello, LakeMurvaul, LakeNacogdoches, LakeO' the Pines, LakePalestine, LakeSam Rayburn ReservoirStriker, Lake*Sulphur Springs, LakeToledo Bend Reservoir (Texas)Toledo Bend Reservoir (Texas &Louisiana)Tyler, LakeWright Patman LakeTOTALConservationstorage 53,34433,49510,618,311Conservation storageend of May 2017(acre-feet)(%)(North Central 1001009894909097Change sinceend of April 2017(acre-feet)**(%)Change sinceend of May 900-4,572no data005,021000-148-7500000-58,342no 0-20000-2-20
CONSERVATION STORAGE DATA FOR SELECTED MAJOR TEXAS RESERVOIRSName of lake or reservoirElephant Butte Reservoir (Texas)Elephant Butte Reservoir (Texas& New Mexico)Red Bluff ReservoirTOTALConservationstorage capacity(acre-feet)852,491Conservation storageend of May 2017(acre-feet)(%)TRANS-PECOS216,33625Change sinceend of April 2017(acre-feet)**(%)Change sinceend of May 40-76,775-3-119,263STATEWIDE TOTALSTATEWIDE TOTAL32,354,93527,438,18385158,5240.5-402,193* Conservation volume is used as conservation storage capacity, because the dead storage is unknown.**Monthly and yearly changes do not include reservoirs that did not have data in last month or last year, respectively.-9-51,973,358151,1101,003,601*Amistad Reservoir (Texas)*Amistad Reservoir (Texas &Mexico)Brady Creek ReservoirBuchanan, LakeE. V. Spence ReservoirInks, LakeLyndon B Johnson, LakeMarble Falls, LakeNasworthyOak Creek ReservoirO. C. Fisher Lake*O. H. Ivie ReservoirTwin Buttes 544,245,009*Austin, LakeCanyon Lake*Coleto Creek ReservoirMedina LakeSomerville LakeTravis, 81,949,068Houston, LakeTexana, LakeTOTAL120,686159,566280,252Choke Canyon ReservoirCorpus Christi, Lake*Falcon Reservoir (Texas)*Falcon Reservoir (Texas 2,470,788500,77725120,47080336,80634EDWARDS 296SOUTH ,881,294UPPER 7,515-1Conservation storage capacity is the space available to store water above the lowest outlet and below the top of conservationpool, or normal maximum operating level. Conservation storage refers to the volume of water held within the conservationstorage space. Not included is any water in flood control storage (above the top of conservation pool or normal maximumoperating level) or any water in the dead pool storage. Conservation storage percentage is based on the conservation storagecapacity of the reservoir and the conservation storage in the reservoir on date shown. Percent change is given by 100 *(current conservation storage - past conservation storage)/conservation storage capacity.
MAY 2017 STREAMFLOW CONDITIONSThe computed 30-day mean flow status for 29 reporting index stations monitored this month ispresented below. Mean flow increased at two index stations and decreased at 27 stations.Streamflow StatusNear or Above Normal ( 30%)Abnormally Low (20-30%)Moderately Low (15-20%)Severely Low (10-15%)Extremely Low (5-10%)Exceptionally Low ( 5%)Number of Stations1842032On a regional basis, as shown below, flows were near or above normal in all regions except inNorth Central and Edwards Plateau (abnormally low) and Upper Coast (moderately low).Streamflow in the Lower Valley region is not monitored.*Streamflow Index is defined as the percentile flow that exceeds a given percent of observed flows.
MAY 2017 SOIL MOISTURE CONDITIONSSoil moisture in the past 30 days (top image, May 31, 2017), as compared to soil moisture at the end ofApril 2017 (bottom image), declined in High Plains, Low Rolling Plains, North Central, and Upper Coastregions but increased in East Texas, Trans-Pecos, Edwards Plateau, Southern, and Lower Valley regions.Soil moisture in the South Central region remained the same.
May 2017 GROUNDWATER LEVELS IN OBSERVATION WELLSWater-level measurements were available for 16 of the 17 key monitoring wells in the state. Water levels rose inseven monitoring wells since the beginning of May, ranging from an increase of 0.02 feet in the Lamb CountyOgallala Aquifer well (#2 on map) to 1.26 feet in the Reeves County Pecos Valley Aquifer well (#14 on map). Waterlevels declined in nine monitoring wells, ranging from a decline of 0.07 feet in the Hansford County OgallalaAquifer well (#1 on map) to 12.50 feet in the Pecos County Edwards-Trinity (Plateau) Aquifer well (#15 on map).The J-17 well (#8 on map) in San Antonio recorded a water level of 59.91 feet below land surface or 671.09 feetabove mean sea level. There are no restrictions currently in place for the San Antonio portion of the Edwards(Balcones Fault Zone) Aquifer, with water levels at 10.3 feet above the Stage I critical management level.*IDs used in this publication on the aquifer map to indicate the monitoring well location (IDs 1 - 17) are different than the TWDB'ssix- or seven-digit state well identification number.
2-217.5020031.12-1.93-55.47 onitoring WellMayApril(1) Hansford 0354301158.27158.20(2) Lamb 1053602147.41(3) Martin 2739903143.58(4) Dallas 3319101492.17492.55(5) Coryell 4035404516.34512.31(6) Kendall 6802609114.46109.89(7) Bell 5804816121.30120.88(8) Bexar 683720359.9153.21(9) Smith 3430907430.51430.66(10) La Salle 7738103470.57468.73(11) Harris 6514409190.97192.09(12) Victoria 801750231.0331.53(13) El Paso 4913301294.77(14) Reeves 4644501165.51(15) Pecos 5216802(16) Haskell 2135748(17) Hudspeth 4807516*Change since the original measurement of 135.5 feet below land surface in 1947 (**measurement not shown on the hydrograph)May 2017 GROUNDWATER LEVELS IN OBSERVATION WELLS(1) State Well ID 03-54-301Near Spearman, Hansford CountyOgallala Aquifer(2) State Well ID 10-53-602Near Earth, Lamb CountyOgallala Aquifer0Depth to water in ft.8011014017019501968198620042022(3) State Well ID 27-39-903Northwest Martin CountyOgallala Aquifer8012016019501968198620042022Depth to water in ft.200115130145160196040(4) State Well ID 33-19-101Southeast Dallas, Dallas CountyTwin Mountains Formation-Trinity Aquifer100Depth to water in ft.Depth to water in 018
(5) State Well ID 40-35-404Gatesville, Coryell CountyHosston Formation-Trinity Aquifer(6) State Well ID 68-02-609Waring, Kendall CountyCow Creek Formation-Trinity Aquifer30Depth to water in ft.Depth to water in 020(7) State Well ID 58-04-816Near Salado, Bell CountyEdwards (Balcones Fault Zone) AquiferDepth to water in ft.Depth to water in ft.120130202220112014201737540042545019862020(10) State Well ID 77-38-103Near Cotulla, La Salle CountyCarrizo-Wilcox Aquifer1994200220102018(11) State Well ID 65-14-409Alief, Harris CountyEvangeline Formation-Gulf Coast Aquifer180Depth to water in ft.200Depth to water in ft.201035011029038047056020021998(9) State Well ID 34-30-907Red Springs, Smith CountyCarrizo-Wilcox 9541970198620022018
(12) State Well ID 80-17-502Near Bloomington, Victoria CountyLissie Formation-Gulf Coast Aquifer(13) State Well ID 49-13-301El Paso, El Paso CountyHueco-Mesilla Bolson Aquifer220Depth to water in ft.Depth to water in 4) State Well ID 46-44-501Near Pecos, Reeves CountyPecos Valley AquiferDepth to water in ft.Depth to water in ft.2005201815011015019023019501967198420012018(16) State Well ID 21-35-748Near O’Brien, Haskell CountySeymour Aquifer19023027031019741985199620072018(17) State Well ID 48-07-516Dell City, Hudspeth CountyBone Spring - Victorio Peak Aquifer209530110Depth to water in ft.Depth to water in ft.1992(15) State Well ID 52-16-802Fort Stockton, Pecos CountyEdwards-Trinity (Plateau) 621976199020042018
73120711406916067180651100631Depth to water in 1606718065110063112020052008201120142017Water Elevation above MSL0Water Elevation above MSLDepth to water in ft.(8) State Well ID 68-37-203 (J-17)In San Antonio, Bexar CountyEdwards (Balcones Fault Zone) AquiferThe late May water-levelmeasurement in this Edwards(Balcones Fault Zone) Aquiferwell, elevation 731 feet abovemean sea level, was 59.91 feetbelow land surface, or 671.09 feetabove mean sea level. This was6.70 feet below last month’smeasurement, 8.50 feet belowlast year's measurement, and13.27 feet below the initialmeasurement recorded in 1932.*** Water levels below the red lineindicate periods in which EdwardsAquifer Authority Stage I droughtrestrictions are in effect. ***6112020HYDROGRAPH OF THE MONTHEach month this space features a new hydrograph (marked with the symbol onthe map) depicting different aquifers and their conditions in Texas.Seymour AquiferWell # 1360503, 32 feet deepUnused Well, Foard County0Depth to water in ft.The Seymour Aquifer is a major aquifer thatextends across north-central Texas. Theaquifer consists of quaternary-age, alluvialsediments unconformably overlyingPermian-age rocks. Water is contained inisolated patches of alluvium, as much as 360feet thick, composed of discontinuous bedsof poorly sorted gravel, conglomerate, sand,and silty clay. Water ranges from fresh toslightly saline, containing fromapproximately 100 to 3,000 milligrams perliter of total dissolved solids. Throughout itsextent, the aquifer is affected by nitrate inexcess of primary drinking water standards.Excess chloride also occurs throughout theaquifer. Irrigation accounts for 90% of thegroundwater usage, with the remainderused primarily for municipal supply.Predictive groundwater availabilitymodeling based on future estimates ofpumping indicates that average water levelsare not expected to change by more thanseveral feet with or without a drought ofrecord. However, water levels in localizedareas are predicted to decline in theSeymour Aquifer by as much as 30 feet.510152025197019801990200020102020The first recorded water-level measurement for this unused well was 15.14feet below land surface in 1975, measured by the TWDB. The TWDB hasconsistently measured every year since with a measurement of 17.26 feet in2016. The water-level has remained relatively unchanged but it has beenimpacted by nearby irrigation pumping of the aquifer. The highest recordedwater level was 10.9 feet below land surface in 1995, and the lowestrecorded water-level was 21.73 feet below land surface in 1980.
Cedar Creek Reservoir in Trinity 644,686 640,114 99 -4,572 -1 -4,572 -1 Cherokee, Lake 40,094 40,094 100 0 0 no data Conroe, Lake 410,988 410,988 100 2,109 1 0 0 Cypress Springs, Lake 66,756 66,756 100 0 0 0 0 Fork Reservoir, Lake 605,061
modesto livermore FREEPORT REGIONAL WATER FACILITY S o u t h . Briones Reservoir Upper San Leandro Reservoir Chabot Reservoir San Antonio Reservoir Reservoir Calaveras Reservoir Crystal Springs Reservoir San Andreas Reservoir Bethany Reservoir . cooking, bathing, filling swimming pools
Reservoir characterization is a combined technology associated with geostatistics, geophsics, petrophysics, geology and reservoir engineering and the main goals of reservoir characterization research are to aid field de velopment and reservoir management teams in describing the reservoir in sufficient detail, developing 3D/4D data for reservoir
environment. To optimize the effectiveness of each reservoir, we must be able to predict the rate of reservoir sedimentation processes, especially reservoir-sediment trap efficiency. Reservoir-sediment trap efficiency is the fraction of the sediment transported into a reservoir that is deposited in that reservoir, usually expressed as a percentage.
Reservoir Characteristics Number of Flowing Fluids in the Reservoir: The mathematical expressions that are used to predict the volumetric performance and pressure behavior of the reservoir vary in forms and complexity depending upon the number of mobile fluids in the reservoir. There are generally three cases of flowing systems:
WATER RESOURCES ENGINEERING-II (A70133) JNTUH-R15 B.Tech IV YEAR I SEM Prepared By: Ms. B. Navya Asst. Professor Department of Civil Engineering . selection of site for reservoirs, zones of storage of a reservoir, reservoir yield, estimation of capacity of reservoir using mass curve-Reservoir Sedimentation-Life of Reservoir. Types of dams .
Cost Transparency Storage Storage Average Cost The cost per storage Cost Transparency Storage Storage Average Cost per GB The cost per GB of storage Cost Transparency Storage Storage Devices Count The quantity of storage devices Cost Transparency Storage Storage Tier Designates the level of the storage, such as for a level of service. Apptio .
Random Sampling with a Reservoir l 39 2. RESERVOIR ALGORITHMS AND ALGORITHM R All the algorithms we study in this paper are examples of reservoir algorithms. We shall see in the next section that every algorithm for this sampling problem must be a type of reservoir algorithm.
1. Fundamentals of Reservoir Engineering by Dake, L P, Elsevier 2. The Practice of Reservoir Engineering, by Dake, L.P., Elsevier 3. Reservoir Engineering Handbook, by Tarek Ahmed, Gulf Professional Publishing,Elsevier 4. Applied Petroleum Reservoir Engineering
