WATER SHORTAGE RESPONSE PLAN Utility Advisory Committee 10 March 2015 Philip D. Lusk Deputy Director for Power and Telecommunication Systems Department of Public Works & Utilities City of Port Angeles, WA 360.417.4703 plusk@cityofpa.us
Water Shortage Declaration The City could declare a shortage in 2015 due to low snow pack and other factors in the Elwha River watershed Three City water shortage declarations since 2002 Stage 2 declaration on July 8, 2003 Reason: Peabody Heights Reservoir taken out of service Stage 3 declaration on September 25, 2005 Reason: Low Elwha River flows Stage 2 declaration on September 26, 2006 Reason: Low Elwha River flows
Water Shortage Response Plan Water Shortage Response Plan Stages Stage I Staff alerted that a water conservation promotional campaign may be needed. Stage II Voluntary conservation. Begin public information campaign. Stage III Outdoor restrictions. Voluntary sprinkling restrictions. Intensive public information. Stage IV Mandatory outdoor restrictions. Essential water uses only. Stage V Water rationing.
The peninsula s largest watershed 321 square miles of drainage and 70 miles of river tributaries The City obtains its drinking water from two sources A Ranney collector well or from the lower Elwha Water Treatment Plant 4
Water Conservation Program The water conservation program has two components to decrease City water use: Supply-side measures for system efficiency Demand-side measures for water conservation Free devices such as low flow showerheads, low flow faucet aerators, and water saving dams for toilets Rebates for downspout disconnects and rain garden installation Working to provide rebates for water-efficient toilets, rain barrels, watering timers, and soil moisture meters
20,000 Elwha River Mean Daily Discharge 18,000 16,000 14,000 Cubic Feet per Second 12,000 10,000 8,000 6,000 4,000 2,000 AVERAGE 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 Jan-12 Jan-13 Jan-14 Jan-15 6
100,000 Elwha River Mean Daily Discharge (log 10 scale) 10,000 Cubic Feet per Second AVERAGE 1,000 400 300 200 100 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 Jan-12 Jan-13 Jan-14 Jan-15 7
100,000 Elwha River Daily Flow (2003-2014 in log 10 scale) 10,000 Cubic Feet per Second 1,000 400 300 200 100 10 1 1-Jan 20-Feb 10-Apr 30-May 19-Jul 7-Sep 27-Oct 16-Dec 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 8
100,000 Elwha River Daily Flow (2003-2014 in log 10 scale) 10,000 Cubic Feet per Second 1,000 400 300 200 100 10 1 1-Jan 20-Feb 10-Apr 30-May 19-Jul 7-Sep 27-Oct 16-Dec Maxium Average Minimum 9
100,000 Elwha River Daily Flow During Critial Months (2003-2014 in log 10 scale) 10,000 Cubic Feet per Second 1,000 400 300 200 100 10 1 1-Jun 21-Jun 11-Jul 31-Jul 20-Aug 9-Sep 29-Sep 19-Oct 8-Nov Maxium Average Minimum 10
8.00 City of Port Angeles Daily Water Consumption 7.00 6.00 5.00 Cubic Feet per Second 4.00 3.00 2.00 1.00 0.00 01/01/03 01/01/04 01/01/05 01/01/06 01/01/07 01/01/08 01/01/09 01/01/10 01/01/11 01/01/12 01/01/13 01/01/14 01/01/15 11
10,000 Elwha River Flow vs City Water Consumption (2003-2014 Mean Daily Comparison During Critial Months in log 10 scale) 1,000 Cubic Feet per Second 400 300 200 100 10 1 1-Jun 21-Jun 11-Jul 31-Jul 20-Aug 9-Sep 29-Sep 19-Oct 8-Nov Minimum Elwha River Flow Maximum City Water Consumption 12
100% Elwha River Flow vs City Water Consumption (2003-2014 Percetage Daily Comparison During Critial Months) 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 1-Jun 4-Jun 7-Jun 10-Jun 13-Jun 16-Jun 19-Jun 22-Jun 25-Jun 28-Jun 1-Jul 4-Jul 7-Jul 10-Jul 13-Jul 16-Jul 19-Jul 22-Jul 25-Jul 28-Jul 31-Jul 3-Aug 6-Aug 9-Aug 12-Aug 15-Aug 18-Aug 21-Aug 24-Aug 27-Aug 30-Aug 2-Sep 5-Sep 8-Sep 11-Sep 14-Sep 17-Sep 20-Sep 23-Sep 26-Sep 29-Sep 2-Oct 5-Oct 8-Oct 11-Oct 14-Oct 17-Oct 20-Oct 23-Oct 26-Oct 29-Oct 1-Nov 4-Nov 7-Nov 10-Nov Maximum City Water Consumption Minimum Elwha River Flow 13
10% Elwha River Flow vs City Water Consumption (2003-2014 Percentage Daily ZOOM Comparison During Critial Months) 9% 8% 7% 6% 5% 4% 3% 2% 1% 0% 1-Jun 4-Jun 7-Jun 10-Jun 13-Jun 16-Jun 19-Jun 22-Jun 25-Jun 28-Jun 1-Jul 4-Jul 7-Jul 10-Jul 13-Jul 16-Jul 19-Jul 22-Jul 25-Jul 28-Jul 31-Jul 3-Aug 6-Aug 9-Aug 12-Aug 15-Aug 18-Aug 21-Aug 24-Aug 27-Aug 30-Aug 2-Sep 5-Sep 8-Sep 11-Sep 14-Sep 17-Sep 20-Sep 23-Sep 26-Sep 29-Sep 2-Oct 5-Oct 8-Oct 11-Oct 14-Oct 17-Oct 20-Oct 23-Oct 26-Oct 29-Oct 1-Nov 4-Nov 7-Nov 10-Nov Maximum City Water Consumption Minimum Elwha River Flow 14
10% Elwha River Flow vs City Water Consumption (2003-2014 Percentage Daily ZOOM Comparison During Critial Months) 9% 8% 7% 6% 5% 4% 3% 2% 1% 0% 1-Jun 4-Jun 7-Jun 10-Jun 13-Jun 16-Jun 19-Jun 22-Jun 25-Jun 28-Jun 1-Jul 4-Jul 7-Jul 10-Jul 13-Jul 16-Jul 19-Jul 22-Jul 25-Jul 28-Jul 31-Jul 3-Aug 6-Aug 9-Aug 12-Aug 15-Aug 18-Aug 21-Aug 24-Aug 27-Aug 30-Aug 2-Sep 5-Sep 8-Sep 11-Sep 14-Sep 17-Sep 20-Sep 23-Sep 26-Sep 29-Sep 2-Oct 5-Oct 8-Oct 11-Oct 14-Oct 17-Oct 20-Oct 23-Oct 26-Oct 29-Oct 1-Nov 4-Nov 7-Nov 10-Nov Average City Water Consumption Average Elwha River Flow 15
Water Shortage Response Plan Summary A water shortage could be declared in 2015 Most likely to occur in mid- to late-september Most likely a response to efforts to preserve fish spawning habitat Compared to 2005-2006 declared shortages, less likely to occur and to have smaller impacts Most likely no impact on Seasonal Water Usage Program Summer (1 June to 31 August) uniform consumption rate Recommendations Consider official Stage 1 water shortage declaration Develop prescriptive standards for water shortage declarations Continue and expand water conservation program
Phil Lusk Deputy Director of Power and Telecommunications Systems Public Works & Utilities Department plusk@cityofpa.us 360.417.4703 http://www.cityofpa.us 17