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TUD Provides Water & Sewer Utility Services

Total Water Customers: 14,037 Treated water cust. 13,442 Raw water cust. 595 Sewer Customers: 6,054

How our water gets to us …

Water collects in the snow pack of the South Fork Stanislaus River (SFSR) watershed Runoff from snowmelt collects in Pinecrest Lake Pinecrest Lake water feeds Lyons Reservoir TUD has a contract with PG&E for our water supply Lyons Reservoir water is sent down PG&E’s Tuolumne Main Canal to TUD’s ditch system TUD operates 72 miles of raw water ditches, flumes, tunnels and pipes. TUD ditches and conveyance facilities deliver raw water to 14 water treatment plants Treated water is sent by pipeline to customers TUD delivers raw (untreated) water to agricultural, industrial, and commercial customers

Infrastructure Investment: In 2015, TUD completed a comprehensive rate study that identified the costs of operating the District’s water and sewer systems. Also, TUD operates the Sonora Regional Wastewater during 2015, TUD developed a comprehensive capital Treatment Plant (RWWTP) and Twain Harte Waste improvement program (CIP) that outlines the District’s Water Plant. RWWTP has capacity to treat 2.6 million infrastructure needs and categorizes those needs based gallons of wastewater per day. The sewer collection on priority. The CIP identifies that the District faces system includes of 140 miles of pipeline. Treated critical infrastructure needs valued at: effluent is piped to the 1616 acre foot Quartz Reservoir Water Infrastructure Projects: $19,803,993 and is distributed to agricultural customers that use the Sewer Infrastructure Projects: $7,083,804 treated wastewater for growing feed crops. TUD does not discharge treated wastewater to any state receiving Project updates are available at www.tudwater.com waters.

Water Supply Management: TUD works with Pacific Gas and Electric (PG&E) to manage the local water supply. Water supply management is based on three key drivers: Financial, Regulatory, and Security.

Financial: As a public entity, TUD operates the water and wastewater systems on a strict cost of service basis, without profit motive, and in consideration of supply, storage, treatment and distribution related costs. Rates and other fees are established to cover the cost of service, provide for rate payer parity, and minimize upward pressure on rates.

Regulatory: TUD’s water supply, provided through contract with PG&E, is regulated by the State of California, Federal Energy Regulatory Commission, and US Forest Service, amongst other agencies. Regulatory agencies place requirements on water storage and use affecting its quantity and availability for consumptive and uses.

Supply Security: TUD advocates for local water supply management practices that maximize water availability from Pinecrest and Lyons reservoirs. TUD’s supply security framework places emphasis on decisions that will enhance water on both a short and long term basis. TUD works to smooth water supplies inside of, and beyond, a single year. Rate Revenues / Expenses FY17 Amount Demographic Category Statistic Treated Water Service Charges $10,479,753 County Population 55,365 Raw Water Service Charges $355,104 TUD Water Service Population 30,794 Total Water Service Charges $10,834,857 Seniors (60+) 15,540 Treated Water Expense $10,011,956 Median Age 47.3 Raw Water Expense $586,523 Average Household Size 2.30 Total Water Expense $10,598,479 Average Household Income $48,493 Sewer Revenue (service charges) $5,540,906 Median Household Income $26,063

Sewer Expense $4,615,110 Median Monthly Rent $924

Capital Expenses FY 17 Amount Population % at very low and low income 39% Treated Water $1,643,850 Projected Annual Pop. Growth Rate Thru 2040 0.87% Raw Water $240,500 Number of Private Water Systems in County 137 Total Water $1,884,350 Mandatory Conservation Level 6/2016 – 2/2017 0%

Sewer $774,998 Water Use Type1 Acre Feet % Total Treated Water 3,393 57% Water Infrastructure Projects supported by rates: • Replace approximately 39,000 linear feet of Raw Water 2,501 43% water mains Total 5,894 100% • Dredge over 300,000 cubic yards of sediment 1 from Phoenix Lake 2015 Rate Study • Construct 3 new storage tanks • Construct 2 new pump stations Sewer Infrastructure Projects supported by rates: • Install approximately 1,600 new remote read • Replace approximately 5,000 linear feet of sewer treated water meters forcemain • Install approximately 500 new ditch meters • Conduct trenchless rehabilitation on approximately • Repair approximately 2,900 linear feet of ditch 23,000 linear feet of gravity sewer mains and raw water piping • Construct 4 new sewer lift stations • Shotcrete line (pending CEQA approval) • Rehabilitate 5 existing sewer lift stations approximately 3 miles of ditch • Install a new generator and motor control center at • Evaluate land for a raw water storage reservoir the Regional Plant at Section 4 and for a sedimentation forebay at (RWWTP) Phoenix Lake • Replace one truck • Complete the Treated Water System • Purchase one Vac-Con truck Optimization Plan • Complete a study of the RWWTP processes • Complete a Cost of Services Study • Start the engineering design of future solids • Achieve greater CEQA compliance on future handling facilities at the Regional WWTP ditch projects • Develop 40 acres of dry year land bank in the Regional Reclamation System.

Major Issues Facing TUD: • Pervasive tree mortality and cost of tree Water Measurements removal. Estimated costs = ~$1 million to TUD • Implement $19.2 million capital improvement Acre Foot (AF) = 353,851 gallons program to upgrade water and sewer systems Miners Inch Day (MID) = 11.22 gallons per • Water supply minute per day, or 16,157 gallons/day • Build long term financial sustainability • Consolidation of water treatment facilities Cubic Foot = 7.48 gallons • Develop & enhance storage October 2016