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• Memo October 15, 2010 Table 3—Facilities Expenditure Summary Item Cost Notes Micro Filtration $7,030,577 Being leased by DERWA Reverse Osmosis $5,619,295 Not in use Pipeline Segment 1 $4,255,463 In use for Zone 7 brine disposal Pipeline Segment 2 $1,260,288 Not in use Pipeline Segment 3 $290,624 In use for DSRSD Recycled Water distribution Pipeline Segment 4 $1,175,221 Planned to serve Cloak Road interchange - Staples Ranch Pipeline Segment 5 $310,136 Not in use Pipeline Segment 6 $699,850 Paid for by DERWA Injection Wells $1,499,933 Abandoned at no cost to DSRSD by Zone 7 Total $22,141,387 The key elements of the CWR project, their current use, and expenditures from January 21, 1997 through completion are summarized further as follows: • Micro Filtration (MF)/Ultra Violet (UV)/Microfiltration Feed Pump Station (MFFPS) — The MF/UV/MFFPS portion of the CWR treatment facilities are currently being used to produce recycled water for the DERWA Program when DERWA system demand drops below 1.0 — 1.5 million gallons per day. The audited expenditure for MF is $5,198,663, for UV is $999,977 and for MFFPS is $831,937 for a total of$7,030,577. The District Water Enterprise is currently leasing the MF/UV/MFFPS facilities from the Regional Enterprise at a rate of$143 per million gallons treated in accordance with the calculation sheet included as Attachment 2. Note that the lease rate is based upon an estimated facility expenditure of$8,297,758 so the lease rate is slightly overstated. o Reverse Osmosis (RO)/Product Water Pump Station (PWPS)—The RO/PWPS portion of the CWR treatment facilities are not currently being used. The audited expenditure for RO is $4,872,418 and for PWPS is $746,877 for a total of$5,619,295. o Pipeline Segment 1 — Pipeline Segment 1 from the wastewater treatment plant north then east in Dublin Boulevard to the Tassajara Creek crossing is currently being used to transport brine from the Zone 7 Well Head Demineralization facility to the treatment plant for disposal. Zone 7 is paying the Regional Enterprise, under the Industrial Waste Program, for the cost of disposing of the brine. The audited expenditure for Segment 1 is $4,255,463. Page 4 of 5 HAENGDEPT Dept Items\ENGMGR\Plcasonlan\CWR Audit\Final CWR Expenditure-Income Audit Memo.doc