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Home My WebLink AboutPPP.05.02-GWRS Operation Committee Presentation Groundwater Replenishment System ( GWRS A N l Tq Q � Orange County Sanitation THE Kathy Millea Operations Committee September 2, 2015 G W R S GROUNDWATER REPLENISHMENT SYSTEM 162,1000 000,,000 gallons,, IF and counting, •W GfWNDwAIt!AtP11 NkywlMT S'fSftM Tastes like water., because it is water! Water Resource Recovery Preliminary Primary Secondary Treatment Treatment Treatment Influent Effluent tl - •� •r � l i r I' last ww'i cp 0-0 1 • ,46 •� :4'_.it,T r OCSD and OCWD Service Areas blow 41 Anaheim Huntington Beach Both serve roughly the same service area . ^'2.5 million residents OCWD Service Area OCSD Service Area San Clemente Orange County Boundary 1 ANIT,T - N 30-Year Partnership 9olC �? tMB iNE Ep`P SINE 193] • / Water Water Factory Project Acres Replenishment A� A kk- -am, -doom A"A 4 Seawater intrusion Non-potable water for 2008 - 70 MGD of potable barrier landscape irrigation water (purple pipe) 2015 — 100 MGD of potable water Groundwater = 72% of Potable Water for our Service Area — -ad Next Year boom ddd9d Other- 1% Typical Year Imported Water - 18 Santa Ana River Basef low-21% Other- 1% Imported Water- 6% Incidental Recharge - 16% Santa Ana River Santa Ana Stormflows- 13% Incidental River Recharge - Basef low- 20% 33% 10 GWRS- 31% Santa Ana GWRS- 22% River Stormflows- 17 What Is The Groundwater Replenishment System ( GWRS ) ? Largest water purification program of it kind in the world 100 MGD Takes treated sewer water that _ otherwise would be discharged to the ocean and purifies it to near-distilled • quality Provides a new 100,000 acre-feet per t' •• year source of water, which is enough water for nearly 800,000 people ! �' p p the energy to pump imported water 1/3 the energy to desalinate ocean water GWRS Process Mic rofitratoon (MF) f f01gu�� o -', * ' 1 Ar ere Reverse Oorn0000 QRO �—� � �rp") )_ iil 1 1 1:: UraAdot UgM (Uv� GWRS Distribution System P\', Anaheim Spreading Santa Ana Facilities River Future mid-basin �•. injection Santiago Creek - • Seawater Groundwater Basin Intrusion (OCWD Boundary) Pacific Ocean Barrier M❑ GWRS � OCSD Treatment Plants Ocean Pipeline t Outfall N GWRS Water is Better Than State a n d Federal Drinking Water Standards AOL " r � 10 � all C Kraemer Basin GWRS is a joint project with J' oint V�JNjV SANITgT�o2 � governance 9o��cTiN� THE E r r r � Y ..��, ", t.."�'�.-• is •. _ � . r i3' rFy��J' t,7=' , 'J' f,.�'�. ..'-�.i...• ��.'. r '� 'I � r/��r •'��er(.�,�.� .i•�..+, ♦• •J� .•�,�. r GWRS Steering Committee OCSD OCWD VOON`v SANITq TT 4 • ¢ 9 Lai O� TA'G iNE ENJ`P 6 SINCE 1933 3 Members 3 Members Beamish, Nielsen, Ferryman Yoh, Anthony, Green 3 Alternates 3 Alternates Kring, Sebourn, Jones Bilodeau, Flory, Nguyen CICSD Contributions to GWRS Water • =162,000,000,000 Gallons Since 2008 0 =10 Acres Leased for $1/year at no charge 77 Tastes like water I because it is water! :3 l OCSD Contributions to GWRS Additional and Improved Treatment Flow Management • GWRS Microfiltration Backwash Water 0 Steve Anderson lift Station Treatment 0 Diversions in the Collection System • GWRS Reject Brine Disposal 0 Plant 1 Treats Higher Flows • Plant 1 Secondary Process Improvements 0 Plant 2 Treats More Solids • High Quality Water = GWRS 97% on-line 0 Continuous Operational Coordination factor with OCWD CICSD Contributions to GWRS Robust Source Control Program • Highly Effective Pretreatment Program • Pollutant Source Control Examples — Source Reduction of N-Nitrosodimethylamine ( NDIVIA) and its Precursors — Source Investigation and Reduction of 1,4-Dioxane — SAW PA Remedial Plan 2000 Total Effluent Heavy Metals 1800 • Public Outreach Programs 1 1600 b 1400 — "No Drugs Down the Drain" s 1200 M d 1000 G Total — Co-hosting events, tables, a ° Effluent Y 800 Heavy Metals presentations and tours 600 400 — Joint media efforts 200 0 77 80 83 86 89 92 95 98 01 04 07 10 13 OCSD Direct Benefits • Reduced outfall flow = less pumping, less disinfection • No OCWD charge for first 1 MGD of non-potable water ($700k/year prior to 2009) • 100 MGD emergency outfall flow capacity Groundwater Replenishment MGD System (GWRS) 300 in operation since 2008 280 260 240 220 200 Treated Wastewater 180 to Ocean 160 140 120 100 � ern lfl Il- 00 Ql O r1 N M � Ln l0 I- 00 M 0 r1 N M Ln rn rn rn rn M M 0 0 0 0 0 0 0 0 0 0 r1 r1 ri ri r-I rn rn rn rn M M 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r-I r-I r-I r-I r-I r-I N N N N N N N N N N N N N N N N 2013 Strategic Plan On November 20, 2013, the Board approved the Five-year Strategic Plan which included the strategic goal for "Future Water Recycling". 2013 Strategic Plan On November 20, 2013, the Board approved the Five-year Strategic Plan which included the strategic goal for "Future Water Recycling". Effluent Reuse Study Develop GWRS Final Expansion Implementation Plan Identify future water recycling I opportunities beyond GWRS Pursue grant opportunities G W R S • OWUWWOAI UPUNISKWNT SK1lM Tastes like water.. because it is water! Effluent Reuse Study Develop GWRS Final Expansion Implementation Plan Identify future water recycling I opportunities beyond GWRS Pursue grant opportunities G W R S • GtONNOWAIEt ttllflNLWlM SK1lM [J $450,000 WaterSMART Grant Tastes like water.. because it is water! GWRS Flow Capacity _ r 70 MGD 30 MGD 30 MGD GWRS Initial Final i Expansion Expansion 2008 2015 ? i i i i -- ----- --------- 4 4 4 93 MGD 40 MGD 40 MGD Challenge : DecreasingFlows Orange County Sanitation District Plant No. 1 & Plant No. 2 Combined Influent Flow July 1994 - July 2015 290 Population 280 270 260 250 240 0 230 220 Current Flow 185 MGD 210 200 190 180 7 fl- 00 0) O N M LO (0 rl- 00 0) O N M d7 O O 6) 0) 6) O O_ O_ O O O O O 7 7 7 7 7 7 7 7 7 7 7 7 7 q Challenge : Flow E ualization Projected OCSD Flow and GWRS Feed 180.00 160.00 140.00 Surplus 120.00 Deficit 0100.00 80.00 60.00 40.00 20.00 0.00 00 00 00 00 00 0 00 ' 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Hour OCSD Available Flow 130 MGD GWRS Feed Flow Equalization Tanks for GWRS Initial Expansion . a � r I � � ..sue �i f►• + ` �I�T] A- lima Challenge : Santa Ana River Interceptor (SARI ) • GWRS permit does not allow use of SARI — Stringfellow Superfund site — Truck discharges / collection stations • Effluent Reuse Study to evaluate: — diverting domestic flows out of SARI — separate SARI treatment at OCSD f 2015 GWRS Advisory Panel Recycling Subcommittee Findings • Stringfellow does not preclude GWRS recycling • SAWPA's collection stations introduces some risk • Next Step : Full GWRS Advisory Panel in November 2015 to discuss further . J ONO WON. GWRS Today Running near 1000�o capacity . . Projected to meet Production goal of 1Q31000 acre feet/year d� G„ w,�,P, S 1 Tastes like water, because it is water! Questions ? Santa Ana Rover Intercep tor (SARI ) ho T—pl pland� ..............a...........•— /0 anc Clan. C.a F0— Sa 0 - S lh—l". El UpI,nd K 0 ' B A- W BaleFontana f--d C, a Welt Monte Porn" Onlano a Lp na Redlands H.9ht, 1, San ti,l Y L,P-nr, S,,th S,""n"' Gr,nJJJe -nllole5 M0nWb,II,'e d CIM.. Glen SUMIni'p, -T-- RubdWx P". B,11 �vh,tber H.,h. Lv, Lo— J-r"o- R—lud R, d. Pk —ney I.— : Norwalk Ilu ,Valley L.M.,.d Yorba Mor en - tared Val P,L,,Ida Und,i acentia E— Fullerton .—t. -d—, Garden'n . C oron ood P Imo al M Or e Rro—ide Nu G.rdeGardenrange;e tI, Grove P".. North eal W S. X1 6. An. Orange 1 7 T.— R elMd _ Hanel S.'Ic, 'u. B a<n Huntilgton wn n Quay l 9—M Y 1. Valle S. C"Y Irvine 74 1 Huntington Bead, 0 a Ranch T-- ke C..Y. a tJkport D,* h Ntor for.t .on"-i d, SARI Total Flow: 35 MGD Orange County Domestic Flows: 23 MGD Non- Reclaimable Flows Non-Reclaimable Flows � 41 MGD — SARI (34 MGD total - 11 MGD-inland counties and 23 MGD-OC domestic) — Centrate (_ 5 MGD) — DAFT Underflow (_ 1.5 MGD) — OCWD Cleaning Waste (_ 0.5 MGD) FLOW SUMMARY OCSD Influent 185 MGD Non-Reclaimable (SARI) -34 MGD Non-Reclaimable (Other ) -7 MGD Available Flow 144 MGD Nttueu iui uvVRS ii3 MGD Deficit 29 MGD Challenge : Equalize Flow to GWRS million gallons 180 — 160 140 GWR target flow 130 MG 17 MG Surplus 120 15 MG Deficit ioo so 60 40 zo CICSD Flow 0 i i i i i i i i i i i i i i 0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 Hour W More water to GWRS, less water to ocean outfall 250 235 225 71 200 175 150 N C O 125 a� c 0 100 119 75 50 25 0 00 O O N CY) O O C C C C C C C C C6 N C6 N CO N Cu N • Ago ' �1 -, - '� , = --.. .!" 'Fat* , - "'Ss Ad' of Fi t 1,0 -PLANT 1 Um zz� P Iaint EfflIu t to G It is Av- j�l A IV me ,7w: 67.,,,k Plant 2 Effluent 4,MM ;-VIA to Ocean through 741d RLANT 2 Outfall Systen, ...'N� r .. ��1L �r •.. .•.�/�•.f �:SC••�7_ _'a ` j{;_ .�r}Is�y,S{ NIP 'tj W-4 GWRS Independent AdvisoryPanel Appointed by National Water Research Institute Leading experts in public health and environmental protection Review operations, monitoring and Groundwater Replenishment Systerr, water quality - ap�,° wY Makes recommendations to OCWD and regulatory agencies to assure a quality and reliability General Manager Work Plan "Work with OCWD to jointly study improvements needed to support GWRS Final Expansion . Determine partnerships, needs, strategies, benefits and costs associated with recycling any remainder flows from Plant No. 2 effluent water." s• Challenges blow • Santa Ana Regional Interceptor (SARI) discharges to OCSD Plant No. 2 . • SARI discharges are wastewater flows and waste brines • OCWD is not permitted to use SARI source water for GWRS by the RWQCB/DPH • The Effluent Reuse Study is evaluating alternatives to capture reclaimable domestic flows out of SARI to feed GWRS Final Expansion