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Home My WebLink AboutSS5 - Water Supply Update - PowerPoint (District)�GE Cp ■66 inA February 26, 2019 Item No. SS5 Orange County Water District Director Steven Sheldon Director Kelly Rowe and General Manager Mike Markus ORANGE COUNTY WATER DISTRICT (OCWD) Formed in 1933 by an act of the California legislature to manage the OC groundwater basin and protect OC's rights to the Santa Ana River water Basin provides groundwater to 19 municipal and special water districts that serve 2.5 million customers in north and central Orange County Basin currently supplies 77% of the water supply for north and central OC H U NTINGTON -par-W c B E C H Ocean CINaE-GTION WELLS Shallow Aauffer rA ANA ANAHEIM A 50CfeO 1 Bred Water ] 1 A Natural d isccolwation � � �� CROSS SECTION LOCATOR MAP 1 OCA from ar1�nt buried feel plant and ++ d� material — A — �:, RIEC H ARG E 1vC0- BAS NS "pl Newport- k' Inglewood I Deep2.000 � Fault Zone Aquifer Perms � ANA Fault RWEN 2 5CO fep'tilL F7 Ca nsol•i d ated, Aqu i tards AquilerA na n-wat-2 r- bears n 1-cw-per rrw_ a belly Clay Water- arlrl forrnattans and Sift depQ$its nd jandgraVel ARU MAN"ED BY GO1D LL Idw OC Groundwater Basin CITY OF NEWPORT BEACH WATER SUPPLY MIX THE GROUNDWATER REPLENISHMENT SYSTEM • 100 million gallon per day (MGD) advanced water purification facility • Takes sewer water that otherwise would be discharged to the ocean, purifies it to near distilled quality and then recharges it into the groundwater basin • Provides a new 103,000 acre-feet per year (afy) source of water, which is enough water for nearly 850,000 $623 million investment $292 million 30 MGD final expansion Largest potable reuse project in the world 1 GROUNDWATER REPLENISHMENT SYSTEM 25 20 15 a� s U i — 10 5 0 OCWD ANAHEIM FIELD HEADQUARTERS RAIN GAGE (AS OF FEBRUARY 22, 2019) 19.27 10.32 Average Rainfall to Date Current Rainfall to Date 13.4 0 Annual Average Rainfall CAPTURING SANTA ANA RIVER (SAR) STORM FLOWS OCWD works closely with the Fed era 1 Army Corps of Engineers regarding the operation of Prado Dam Aportion of the water generated from wintertime storms can be captured at Prado Dam and recharged into the OCWD groundwater basin • OCWD owns over 1,000 acres of land in Anaheim to capture and recharge SAR water Difficult to purchase a dditiona 1 la nd and construct multi-million $ facilities to capture large infrequent SARflows FCO 00 ru► QUESTIONS? Michael R. Markus, P.E., D.WRE, BCEE, F.ASCE General Manager, OCWD 714-378-3305 mmarkus@ocwd.com 18700 Ward Street Fountain Valley, CA 92708 www.ocwd.com Rainfall and a Snowmelt + nUsed Water Upstream �5 an Ana► Local River Flbw Rainfall FM .■ A O V Untreated Imported Water G,,.W .�sRk ,.,S Advanced Purified Water Y- ni1 Pacific Ocean ❑ ❑ Treated 1 j :,,! I Wastewater Wastewater 2.5 Million Water Users North &Central t �5% 19001 grange County I olwal®rdemands Local Groundwater Basin & Recycled Water for Irrigation LBGQNd BE9CW 4:1WY WATER 915FRK'i++ ter district 600, 000 Treated Imported Water R�nTlco c.ntinN 4S„.� .��•- R,?OFrIWA=EF {NSTNC ».. ka 1:1�u' tii�ti Water Users 14 MWD Direct 1�1Nr��jj Fut, .REI r'f h�. - r'"� ""•. ceP^y WATER DISTRICT Gueoea 6aave JAN ' y' Ph nxlf ,rte MesaWater - a i r YorbaUnda Wale rDislricl North &Central t �5% 19001 grange County I olwal®rdemands Local Groundwater Basin & Recycled Water for Irrigation LBGQNd BE9CW 4:1WY WATER 915FRK'i++ ter district 600, 000 Treated Imported Water R�nTlco c.ntinN 4S„.� .��•- R,?OFrIWA=EF {NSTNC ».. ka 1:1�u' tii�ti Water Users OCWD GENERAL INFORMATION • OCWD governed by a 10 person Board of Directors — 7 members directly elected by the public — 3 members appointed (Santa Ana, Anaheim &Fullerton) • Non -adjudicated groundwater basin • Each year the Board sets the percentage of groundwater that can be pumped (BPP) • Each year the Board Replenishment Assessment (RA) and Basin Equity Assessment (BEA) for the cost of pumping groundwater OCWD GENERAL INFORMATION (Cont.) • OCWD owns operates and manages over $1 billion of water infrastructure facilities • Manage and protect Orange County's rights to Santa Ana River flows • Work with US Corps of Engineers to manage Prado Dam to capture winter time Santa Ana River storm flows • Own and operate over 1,100 acres of land in Anaheim/Orange area to capture and recharge water into the groundwater basin • Inject water into the groundwater basin along the coastline at 36 sites to prevent intrusion of seawater into the basin • Provide laboratory water quality sampling and analysis for the 19 municipal and special water districts .� Operate 100 million gallons per day Groundwater Replenishment System Misc, 3,000, 1% OCWD Sources of Water Recharged Into the Groundwater Basin Untreated Imported SAR Baseflows, 70,000, Water, 65,000, 18% 20% GWRS , 10390009 29% SAR Stormflows, 5190009 15% Natural Incidental Recharge, 61,000, 17% LIN ■-SAY /L2' A C E • Ya c lnc Ocean . u � Groundwater Production History mll CD CD 300 Q 50 C gp0 250 L m 4) AC4 200 L 0 CL 150 a� Oh a� `~ 100 Q 50 C gp0 P 4) AC4 e�� P 0 P 0 Op Oh NO Nh OCWD Groundwater Basin Water Storag El -100,000 -200,000 -300,000 -400,000 -500,000 -700,000 I q CO 00 O N CO 00 O N it W 00 O N CO 00 O N CO 00 O N CO GO O N le O O � �f'� Cfl t0 Cfl CO Cfl f` f` f` f` 1` 00 00 00 00 00 C7 C7 C1 C7 Q7 O O O O O r r r r r N O CD c� X 1W cn c� .u. OCWD Prevents Seawater Intrusion Production Desired Seawater Injection Wells Holding Point __ _ ___ Wells Pacific Ocean TO COAST RECHARGEpn a BASINS Sana '0vvL Water percolation from basins PRAoo DAM 0 b WATER CONSERVATION ELEVATIONS Elevation of s illwa 543 ft. 505 ft.Q --------------- ----------------- J NON -STORM STORM SEASON SEASON 20,000 10,000 acre feet acre feet RESERVOIR AREA 9 TOTAL FLOOD CONTROL CAPACITY 174,000 acre feet