Water Supply Shortage Issues on the Retail Level - Olivenhain

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Water Supply Shortage Issues on the Retail Level - Kimberly Thorner, general manager, Olivenhain Municipal Water District - Presentation 1/3 Panel Discussion: Local Approaches to Coping with Water Shortages

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Water Supply Shortage Issues on the Retail Level - Olivenhain

  1. 1. Water Supply Shortage Issues on the  Retail Level ‐ Olivenhain Municipal  Water District Kimberly Thorner, General Manager Conservation Summit June 2, 2009
  2. 2. Water Supply Shortage We all face the same challenge  Will use different tools to achieve the end goal  Each retail agency customer bases are a bit different Geographically; Financially, and land use  Traditional Tools Outreach/Education Rebate Programs Audits Mandatory Water Use Restrictions – The Hammer Fines & Penalties No New Meters – The Saw No annexations – The Chisel Drought Rates – The Screwdriver Allocations – The Bucket Outreach Programs & Diversity of Supply ‐ New Tools
  3. 3. Moving to Level 2 Mandatory  July 1st Mandatory Water Use Restrictions – The Hammer Illegal to waste water; watering days Fines & Penalties Enforcement via existing employees Hotline   Already in place and working Door hangers Achieve conservation just off of the move to “mandatory”
  4. 4. The Question “Why should I be forced to conserve  when new houses are still being built?”
  5. 5. No New Meters No new meters/no statements of ability to serve in Level 2 Exceptions • Valid, unexpired building permit • Threat to human health & safety • Voluntary demand off‐set fee Identified five recycled water projects Calculate cost per acre foot of those projects $4,500 per EDU (3/4” meter) offset. San Diego Water Usage
  6. 6. Drought Rates Study conducted in October 2008 Temporary pricing  Based on drought levels Overlay temporary drought rates on current rates to  calculate rates for each stage of drought.  Provide economic incentive to conserve water. Based on price elasticity of water How much do you have to raise cost to induce a desired percent  reduction Achieve revenue neutral condition Customers conserve = budget neutral Customers waste = increased revenue Spend on new water supply and conservation  programs
  7. 7. Revenue Shortfall/Drought Rates Increase from Non-Drought Rate Tier Level 1 Level 2 Level 3 Level 4 RESIDENTIAL Tier 1 (0 - 6 units) 0% 10% 20% 35% Tier 2 (7 - 43 units) 5% 25% 55% 65% Tier 3 (over 43 units) 15% 40% 65% 75% COMMERCIAL/IRRIGATION "B" (Base) 5% 25% 55% 65% "C" (Over Base) 15% 40% 65% 75% OTHER Agricultural 5% 25% 55% 65% Temporary Construction 15% 40% 65% 75% Raw Water 15% 40% 65% 75% Recycled 0% 0% 0% 0%
  8. 8. Residential Sample Bill Calculation A typical residential customer with ¾” size meter using 18 units of water System Consumption Commodity Rate Rate Access Commodity Scenario Total Bill Charge + IAC HCF Decrease Tier 1 Tier 2 Non-Drought $22.96 18.00 0% $1.58 $2.43 $38.64 $61.60 Level 1 $22.96 16.56 8% $1.58 $2.55 $36.41 $59.37 Level 2 $22.96 14.58 19% $1.74 $3.04 $36.52 $59.48 Level 3 $22.96 12.06 33% $1.90 $3.77 $34.25 $57.21 Level 4 $22.96 10.80 40% $2.13 $4.01 $32.03 $54.99
  9. 9. Diversity of Supply Short Term 780 AF of new recycled supply in 2009 Partnerships with Vallecitos and City of SD Converting Golf Courses Fairbanks, Crosby, Morgan Run, Encinitas Ranch done RSF Farms this Fall Bridges  ‐ long term Long Term Additional recycled  ‐ expand the purple pipe Partners in the Poseidon Desalination Plant ‐ 2012 OMWD New Brackish Desal Feasibility Study
  10. 10. New Program Partnering with CSUSM Psychology Department Answer the question – How much water do I use? New feedback tool – Test to see if it causes  conservation Feedback meters linked into a real time computer  software in the customers home to instantly see their  water consumption Compare to historical use, other customer averages,  dollar cost Eventually on the fridge (I may call it the Water Diet!)
  11. 11. Summary We are all in this together and face the same  challenges If the tools don’t work, we will try new and different  ones We ultimately need to reshape our water ethic as this  is not a short term problem.

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