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Kitty Moore - 3-11-2018 9-56 a.m. - recycledwatervallcoactualcostThe recycled water isn't cheap -- about $1,1oo an acre-foot to produce, or roughly triple what it costs to buy water from the Delta, LOW ESTIMATE!! http://www.mercurynews.com/science/ci 26160300/california-drought-san-ioses-new-high-tech-water http://sunnyvaIe.ca.gov/Portals/0/Sunnyvale/ESD/Water/Recycled%2OWater%2OExpansion/2OReport/ Appl-ExistingRecycledWaterCustomers.pdf City of Sunnyvale - Feasibility Study for Recycled Water Expansion Existing Recycled Water Customers Hear -Term Demand Estimates 16539415 Pr- Sunnyvale Golf Course 645 Macara Av 3.5 183.9 164,140 Moffet Field Gulf Course 0.0 118.5 145,840 11005414 PF Santa Clara County - Sayfands Park 999 Caribbean Dr 47.0 95.5 85,200 11439401 PF Santa Clara County - Twin Creeks Sports Complex D 183 54.5 48,640 11001425 MPI Lockheed Mlsslles And Space Co Inc 1111 Lockheed Martin Wy 204.3 29.5 26,300 11065402 MPT Moffett Park Dr Llc 807 11th A Av 1.0 25.5 22,800 Moffet Field Site 25.4 22,700 11034025 MPT Arden ReaPty Lp 1221 Crossman Av 15.5 25.3 22,600 1103SODS MPI Amb Property Lp 155 E Moffett Park Dr 21.0 22.5 20,200 11002465 MPT Menlo & Juniper Ntwrks Uc 1111 Lockheed Martin WV 77.0 21.3 19,000 11032427 MPT HetwarkAppllance Inc 1375 Crossman Av 1.1 17.6 15,700 20519402 PF Sunnyvale Ckty Of - Fair Oaks Park D Britton Av 13 17.4 15,640 11044008 MPI Yahoo Iw 7D1 First Av 243 17.2 15,300 Green roof prediction: 80,369 gallons/day = 0.24664307759536294 acre feet/day x 365 days/yr = 90.02 acre feet per year This means the green roof would be the 4t" largest recycled water user behind the Sunnyvale Golf Course, Moffet Field Golf Course, and Baylands Park (47 acres). "All agencies surveyed offer recycled water at discounted rates compared to potable water charges. Recycled water rates generally ranged from roughly 45% to 95% of potable rates. • The City of Sunnyvale's current recycled water rates are set at 90% of potable rates for both irrigation and industrial accounts. Compared to other agencies, Sunnyvale offers one of the smallest recycled water discounts on a percentage basis. Duration of Pricing Incentives To preserve future pricing flexibility, the City should not obligate itself to providing recycled water pricing discounts for perpetuity. For example, Redwood City's recycled water rate resolution only obligated the City to provide pricing discounts for a minimum of five years. Also, the City could opt to implement a higher discount for some time followed by a reduced discount (e.g. 40% discount for 5 years, then 25% discount thereafter). To date, the City has maintained the discounts for all recycled customers, regardless of when they originally connected. The City may need to charge different wholesale rates to different potential customers depending on various factors such as each customer's alternative cost of water, infrastructure funding requirements, and other considerations of both the City and the potential wholesale customer. For example, an agency with a severe water supply shortage facing costly supplemental supply alternatives would have a substantially higher "willingness to pay" than an agency with less-expensive potable water sources. " Sunnyvale charges $3.95/hcf convert to acre feet 435 hcf = 1 acre foot $3.95/hcf x 435 hcf/acre foot = $1,718.25/acre foot Vallco roof uses 90.02 acre-feet /year x $1,718.25/acre foot charged for recycled water = $154,677/year for recycled water for the roof. Recycled rate as % of potable rate is 90% I think you are very correct, #3. But I'm having trouble finding what Somers plant produces. so Apple is 235-500AFY Vallco 90 AFY then add the rest planned with dual plumbing (is that required) 595 AVY coming from Donald Somers (there are some other recycled water companies in the works and some will want to do groundwater recharge an repump it from wells) Hamptons 35 AFY "When available, recycled water would be used for non -potable needs such as toilet flushing, cooling demands, and a portion of irrigation requirements. These demands constitute approximately 33 percent of the demand, equivalent to approximately 99 AFY. On-site rainwater reuse and greywater treatment systems are being investigated to limit the amount of water used as well. It is currently assumed that at least 50 percent of the landscape irrigation needs can be met with recycled water. 11 As shown in Table 18-4, the irrigation demand for the Town Center/Community Park portion of the Specific Plan, including the Community Park and Nature Area would be 76 acre feet per year under a typical development scenario. However, the Specific Plan Landscape and Public Realm Element that landscaping within this area will consist of a variety of trees, shrubs and ground covers been selected to thrive with little or no irrigation. Small areas of planting with specific programmatic uses or historical references such as lawns and orchards, will be maintained using primarily non -potable water sources such as municipal recycled water or on-site greywater and stormwater capture and reuse. As such, irrigation demand is reduced by using plants that consume less water and by increasing the efficiency of the irrigation systems. Therefore, irrigation demand is reduced by approximately 31 AFY (40 percent) compared to Typical Development shown in Table 18-4. The proposed demand is also less than the 284 AFY per year water demand from the existing development within the Mall. The Specific Plan proposes the construction a dual plumbing system to accommodate recycled water when it becomes available within the Plan Area. This commitment would reduce the amount of potable water for domestic uses. Toilet flushing, cooling, and limited landscape irrigation demands can potentially be met using recycled water, assuming acceptable level of quality." They leave out impacts of pumping water to the roof with enough pressure to irrigate 30 acres It makes little sense to me their use of "typical development" here because they are only required to have maybe 9 Acres of landscaped area? That would be a typical development. And I suppose that would be the better comparison. 90.02 AFY*9/30= 27AFY for a 9 acre park using their water usage, the higher typical development use yields: 45.6 AFY total (76*2*9/30). They could build a 1-2 acre synthetic turf soccer field, a dog park, and still have 5 acres or so left. I question their cooling tower demand after seeing it so much higher, regardless 54 AFY everything but roof and 45 AFY roof, but I'm saying it's 90 AFY roof because they say they are using recycled water ... so 90+ 54= 144 AFY recycled water demand. The ventilation for this monster with the roof must be insane, really I thought toilets etc have to vent to fresh air = the roof. I kept the water company's 80,369 because these guys have no idea how much water that roof needs, orchard, vineyard, high up, baking in the sun, who knows how thin the soil will be, and it's all sloped. Better to be saying it is more than be sad later. Actually, their table 18-4 potable plus recycled is matching my 90 AFY. Despite their confusing comments in the upper paragraph. Since they say they are using recycled water, it seems fair to say it will all be recycled water for demand comparison: "that will be watered as necessary with recycled water delivered through a new recycled water line extended to the area (from initiative text). http://sunnyyale.ca.goy/Departments/Environ mentalServices/W ater/W aterConservation/RecycledW ater.aspx They total 1062 AFY at the bottom of their existing customer list. So now it is: 1. Apple Campus 2 250-500 AFY - Sunnyvale estimates 345 AFY, 125 AFY Irrigation+ 220 AFY Industrial 2. Sunnyvale Golf Course 183.9 AFY 4. Vallco Green Roof 90 AFY + Vallco inside plumbing etc. 54 AFY = 144 AFY 3. Moffett Field Golf Course 118.5 AFY However Sunnyvale states they are trying to bring more of their own users on board. http://sunnyvale.ca.gov/Portals/0/Sunnyvale/ESD/W ater/Recycled %2OW ater%2OExpansion%2OReport/AppJ- NearTermDemand Estimates. pd Vallco not on the list. How much does Somers Produce? " EC 9212 Report, Appedix 5, page 28-29: As part of the agreement for the Wolfe Road Recycled Water Facilities project, the WPCP will supply a minimum of 1,095 acre feet of recycled water to the Santa Clara Valley Water District (SCVWD) per fiscal year.42 SCVWD has contracted with the City of Sunnyvale to guarantee 595 acre feet per year (AFY) to cover projects within Sunnyvale and retailers outside of the City of Sunnyvale, including Apple Campus 2, will be allotted at least 500 AFY.43 Apple Campus 2 demand is estimated to be 235-500 AFY.44 It is estimated that the recycled water demand for The Hamptons project is 35 AFY and 99 AFY for VTCSP.45 There are existing constraints that may affect the availability of the recycled water to reach the VTCSP site including the amount of recycled water able to be produced from the Donald M. Somers Water Pollution Control Plant46, the supply available to Cupertino users, and the demand of upstream recycled water users from the VTCSP site."LC http://sunnyvale.ca.gov/Portals/0/Sunnyvale/ESD/Water/Recycled %2OW ater%2OExpansion%2OReport/AppL- Treatment-TM 2.pdf page 5: There isn't enough recycled water currently being produced. Can't nail down the numbers. It looks like it is the 1,060 AFY. Footnote p 26 (p29/99) 9212 EC 9212 Appendix E : 46 The City of Sunnyvale has prepared and is circulating an Environmental Impact Report for the Sunnyvale Water Pollution Control Plant Master Plan Program. The proposed Master Plan includes improvements to the plant's infrastructure that would increase the amount of recycled water produced Meeting capacity is several years out. Apparently they are blending with potable water to meet demand. Here's a map of their plans: Recycled Water Rate Survey - December 2012 Potable Recycled RecvdedRate % Charge per hcf Charge per hcf of Potable Rate City of Sunnyvale Agriculture A;nstitutional $2.09 $1-88 90% '_arutstape Irrigation $4.38 $3-95 90% City of Redwood City Existl ng I rrigAti m Arrcumks Tier 1: Up to 10006 of water budget (most wadersold in this tier) $4-78 $3-59 7s% Tier 2: From 10196 - 20096 of water budget 9-58 $3-59 37% X75% of Tier 1} source: http://sunnyvale.ca.gov/Portals/0/Sunnyvale/ESD/Water/Recycled%2OWater%2OExpansion%2OReport/AppF- TM_5RecyclecIWaterPricing.pdf Water Measurement Conversion Chart 1 million gallons 1 cubic foot (CF) equals 1,336 hundred cubic feet (HCF), or 3.06 acre feet (AF) equals 7.48 gallons 1 hundred cubic feet (HCF) equals 748.05 gallons 1 acre foot (AF) 1 100 cubic feet = 0.002295684113866 acre-foot Posted on ND: equals 325,851 gallons, or 43,560 cubic feet (CF), or 435 hundred cubic feet (HCF) I hadn't thought much about the recycled water part for the Vallco `green roof'. The Donald M Somers wastewater treatment plant up in Sunnyvale is where the recycled water would come from if the line was extended past Apple. Apple kicked in over $4 million, and the other agencies put up $25 million to get the recycled line to their Apple Campus 2. We might think this recycled water comes free somehow, far from it, it is expensive to produce and it is subsidized, so while it costs more than 3 TIMES as much as potable water to produce, Sunnyvale charges 90% of their drinking water rate. Sunnyvale charges $3.95/hcf for their recycled water. This is some fancy reverse osmosis tertiary treated water, like I said, not cheap to make. Yes, we are glad it's not running into the bay, but do we need to subsidize Apple??? And Vallco??? And they won't be digging up our streets so we can share. On to the green roof: at 80,369 gallons/day, that's 90.02 acre feet per year. This puts the not so green roof in 4th place for Sunnyvale's largest user water customers of their fancy state of the art recycled water. Behind Sunnyvale Golf Course (183.9 Acre feet/year), Moffet Field Golf Course (118.5 afy), and Baylands Park (95.5 afy) comes Vallco Green Roof at 90 afy. (An acre foot is an acre filled with water one foot deep. So 90 acres of water one foot deep.) And if you think you like it, great, you will be subsidizing their discounted water bill, which incidentally will be a whopping $154,677 per year. sources: http://sunnyvale.ca.gov/Portals/0/Sunnyv... City of Sunnyvale - Feasibility Study for Recycled Water Expansion Existing Recycled Water Customers Near -Term Demand Estimates 16539815 Pr- SunnyvaleGolf[ourse 605 Macara Av 3.5 183.9 rn 164,140 Moffet Field Gulf Course 4.0 118.5 105,880 114135814 Pf Santa Clara County - Baylands Park 999 Caribhean Or 47.0 95.5 85,;80 11439441 Pf Santa Clara County - Twin Creeks Sports Complex D 183 54.5 48,644 1113131425 MPI Lockheed Mlsdles And Space Co Inc 1111 Lockheed Martin Wy 2443 29.5 26,340 11445402 MPT Moffett Park Dr Lir SO 11th A Av 1.0 25.5 22,844 Moffet Field Site 25.4 22,740 11434425 MPT Arden Realty Lp 1221 Crossman Av 15_S 75.3 22,fi44 114354m MPI Amb Property Lp 155 E Moffett Park Or ;1.0 ;;.6 20,2134 11002468 MPT Menlo & Jumper Ntwrks Uc 1111 Lockheed Martin WV 77.0 ;1.3 19,41313 11432427 MPT Network Appliance Inc 1375 Crossman Av 1.1 17.6 15,740 20519802 Pr- Sunnyvale City OF - Fair Oaks Park D Britton Av 1.3 17.4 15,6W 11844808 MPI yahooinc 7101 First Av 24.3 17.2 15,384 http://sunnyvaIe.ca.gov/Portals/0/Sunnvv... Recycled Water Rate SurveV - December 2012 Recyded Potable Re cycled Rate% Charge J3 2T hC( Charge PMir hef of Potable Rate City of Sunnyvale Agr¢ulture & rlstitu"nal SLOr 51.88 90130 -and sca p2 Irrigation $.1.38 53-95 901k City of redwood Crty Exi5tirlg Irrigation ArMunts Tier 1! Up to 10016 of water budget (most water sold in this tier) $4.78 $159 75r%• Tier 2! From 101% - 20096 of water budget 53.5s $3-54 37% (75% o.` T! er 11 and environmental study provided by revitalizevallco.com water use as estimated by the water co.