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City of Davis Wastewater Utility PowerPoint Presentation
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City of Davis Wastewater Utility

City of Davis Wastewater Utility

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City of Davis Wastewater Utility

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Presentation Transcript

  1. City of DavisWastewater Utility October 2014 Michael Lindquist Stan Gryczko Bob Clarke

  2. Programs • Collection system • Conveyance (160 miles of pipes, 2600 MHs) • Lift stations (6) • Wastewater Treatment Plant (WWTP) • Primary and Secondary treatment • 400 acres of wetlands • Green energy - co-generation and solar • Water Quality Laboratory • Wastewater, Drinking Water, • Pretreatment, Stormwater • Pretreatment Program

  3. Statistics • Service Area (# customers) • City of Davis (15,333) • El Macero (441) • North Davis Meadows (95) • Customer Base (% of customers, %revenue) • Residential (96.5%, 86%) • Commercial (3.4%, 13%) • Other (0.1%, 0.3%) • Staffing (23 FTEs) • Collections – 5, Pretreatment – 1, Maintenance – 6 Laboratory – 2, WWTP Operations – 6, Admin/Regulatory - 3

  4. Everyday Duties • Collection system • Cleaning pipes – roots, grease, blockages • Repairing breaks – laterals and main lines • Lift station preventive maintenance • Wastewater Treatment Plant (WWTP) • Treatment - Approximately 4.5 MGD • Preventative maintenance programs, reactive maintenance, environmental and regulatory activities

  5. Everyday Duties (cont’d) • Laboratory • Performs or coordinates samples • Regulatory report preparation • Pretreatment Program • Permitting, inspections, regulatory report preparation

  6. Major Capital Improvements • Collection system • Collections system ($1M/yr until 2016) • Lift station rehabilitation ($3.5M in 2015-17) • Wastewater Treatment Plant (WWTP) • Rehabilitation and Replacement (R&R) - $5.4M • Secondary and Tertiary (STI) - $85M (2012-18) • Replace ponds and overland flow fields with conventional treatment • Add tertiary treatment (filtration) • Update laboratory and ancillary facilities that support new processes • CIP Financing (pay as we go, SRF Loans)

  7. Finances • Fund Balance • Currently approximately $32,000,000 • Debt service requirements • Rate reserve • Pay-as-we-go capital improvements

  8. Existing Rate Structure • Residential monthly charges (example for SFR) • Fixed, volume*, and base charges * winter water use (WWU) is determined by measured water use in November – February. Maximum volume provision. • Commercial • Volume and base charge • Industrial – special contracts • % of revenue

  9. Existing Rate Structure (cont’d) • 5-yr rate structure and rates adopted in 2011 • Future potential increases

  10. Looking Forward • Why look at rates now? • Major capital costs and financing will be known • Next year’s increase is substantial • Provide more accurate rate information for Innovation Park developments • Major steps of Rate Study • Revenue Requirements • Cost of Service • Rate Design • System Development Fees • Financial Plan (long term)

  11. Schedule of Rate Study • Recruit Rate Study Consultant • December - January • Rate Study • January - June • Consideration of updated rates • Summer • New rate in effect in December 2015