Urban Lakes and Wetlands Workshop Alberta Lake Management Society Chestermere Alberta Sept 30-Oct 1, 2011 • History CPR started in 1906 1944 Farmers took over • Change Urbanization,,gy Technology • Challenges Stormwater • Opportunities Municipal Partners • Future ALIDP, Coaldale Nov 2010 Tremendous growth in Calgary region WID under pressure from urbanization Stormwater being directed to the canals Irriggyation system often taken for granted -WID holds a water license of 158,000 acre/feet from the Bow River. -We service a maximum of 95,000 irrigation acres producing a variety of crops from traditional grains and forages to trees and sod, potatoes andbld organic vegetables. -Municipal water is supplied to Rocky View County (Balzac), Wheatland County in addition to the villages of Rockyford, Standard and Gleichen. -WID conveys water to a number of private license holders varying from Ducks Unlimited to golf courses, campgrounds and livestock operations. -Provide a range of recreational activities for all seasons from boating to hunting and fishing, walking, cycling and cross country skiing. The WID syppystem has 3 main canals with smaller lateral ditches and pipelines divided into 6 service areas using gravity flow on contour designed in the early 1900’s. Rehabilitation of main supply canals reduce seepage losses and increase freeboard during peak usage. Lateral delivery canals converted to closed pressure pipelines eliminates conveyance losses. SCADA information is accessible on office computers and in area supervisor truck mounted laptops. Diversion Gates Pipeline Inlets Control Structures and Spillways Return Flow Channels - WID infrastructure starts at Chestermere Lake, one of two internal storage reservoirs in the district. -It has lost its functionality as a live storage reservoir due to development and now acts primarily as a recreational water body. - SCADA offers real time trending used to track changing water lev els in canals, increasing the supervisor’s ability to deliver water more accurately. - Alarm software notifies area supervisors if pre- determined alarm set points (e.g. flow rate, canal level or site functionality) are reached. - Staff is automatically called and can react to a situation sooner, before it causes service interruptions or damage to infrastructure. In 2010 WID implemented design of a software program (RAM) to compliment SCADA which records irrigation system status throughout the district. -New rehabilitation projects and existing structures are fitted with measurement and monitoring. - Flows rates in monitored canals are measured for accuracy and in non- monitored canals for management using Acoustic Doppler technology. - Since 2005, investment in automation and flow monitoring (SCADA) has surpassed 1.27 million dollars in the WID. - 33 sites comprised of diversion gates, inflow control structures, pipeline inlets and return flow channels are monitored in real time on the SCADA network. - Data is transmitted over a WID owned radio system, chosen for low operating costs and reliability. 100,000 140,000 160,000 160,000 120 000 80 000 40,000 60,000 20,000 With 12 years of flow data available tobeanalyzed,average 12 yearsofflowdata With , , diversions are dropping as a result of water savings through savings through as aresultofwater as aresultofwater diversions aredropping diversions aredropping 000 000 0 rehabilitation, improvedmanagement, andautomation. 20-Apr 27-Apr 04-May 11-May 18-May 25-May 01-Jun 08-Jun 15-Jun 22-Jun 29-Jun 06-Jul 13-Jul 20-Jul 27-Jul 03-Aug 10-Aug 17-Aug 24-Aug 31-Aug 07-Sep 14-Sep 21-Sep 28-Sep 2007 - 2010 2003 - 2006 1999 - 2002 -Results of phosphorus loading is the increase of aquatic weed growth in the delivery system. -Aquatic weeds restrict the ability to efficiently move water through the canals. -WID must ensure irrigation quality water to all users regardless of where they are located in the district. Total Phosphorus (mg/L) 001 0 0.02 003 0 0.04 005 0 0.06 Avg 99-05 . 01 03 05 0 0 BowBow R R u sus 20 Distance (km) BowR,WHcanal, Acanal DiversioDiversinon 40 CityCity Lim Limiitsts Target (avg) ChestermChestermereere L L 60 80 ALIDP, CoaldaleNov 100 2010 Limit (1 sample) 120 Strathmore Strathmore 140 N of Gleichen 160 N of Gleichen ALIDP, Coaldale Nov more 2010 re n ss its re Lre L chen h h o o o o uu uu ee ee m m 0.06 Diversi Bow R Bow R g/L) City Li Strathm N of Glei hestermhesterm E of Strat CC CC mm 0050.05 N N 0.04 orus ( hh 0030.03 0.02 Phosp 0010.01 0 Total 0 20 40 60 80 100 120 140 160 Distance (km) Bow R, WH canal, B canal Avg 99-05 Target (avg) Limit (1 sample) WID Diversion vs. Stormwater Inflows ALIDP, Coaldale Nov 1000 2010 900 Western Headworks Diversion 800 Stormwater Inflows 700 600 500 CFS 400 300 200 100 0 5/4/06 5/13/06 5/22/06 5/31/06 6/9/06 6/18/06 6/27/06 7/6/06 7/15/06 7/24/06 8/2/06 8/11/06 8/20/06 8/29/06 9/7/06 9/16/06 9/25/06 Date Shepard Stormwat er Proj ect removes Ca lgary stormwater from the WHC upstream of Chestermere Lake. ¾Volume of runoff can increase over 10 times Depressions filled Increased roofs, pavement ¾Water quality reduced TSS ~ 300 to 400 mg/L TP ~ 0.4 mg/L Others ((,,)Bacteria, EC, etc.) ¾Peak flows increase ¾TP already exceeding system-wide targets ¾Hy drau lic capacity of 2 to 3 L/s /ha in most rehabilitated canals, but not as high in existing ¾City of Calgary Shepard Stormwater Diversion PjProject on-line hhlelps btbut not entire answer 1. WID Only (Into Canals) • A, B, C Canals • Areas Upstream of Chestermere Lake and Langdon Reservoir require Mechanical Treatment • Strathmead, Cairn Hill 2. WID & AENV (Shared Streams) • Serviceberry Creek • Weed Lake / Hartell Coulee 3. WID Pre-Existing Agreements • Strathmore, Chestermere 2004 • Weed Lake / Langdon 4. WID Access Prohibited • West Creek (Underdrain WH Canal) ¾Quality from typical AENV regulated ponds less than WID irrigation targets ¾Only TSS removal (85% of particles > 75 μm) ¾WID also targe ting TtTota l Phosp horous, Feca l Coliform Bacteria, Salinity ¾Irreducible Phosphorous concentrations can be > 0.10 mg/L versus irrigation target of 0.03 mg/L • Continued annual testing of water quality throughout the WID is showing positive trends. • Water quality guidelines for releases into WID canals, erosion control measures and the Sheppjard Stormwater Project contribute to improved results. Mean historical total phosphorus levels in Chestermere Lake (units per 1000) Total Phosphorus 45 40 35 30 25 Total Phosphorus 20 15 10 5 0 1983 1984 1992 1993 1999 2000 2001 2003 2009 2010 • Western Headworks Stormwater Settlement ▫ Limits on Peak flows ▫ Committed to Shepard Stormwater Diversion ▫ Reduction in total loadings ▫ Collaborating with AE and WID ¾Strathmore Annexation ¾ 50,000 people in 50 years ¾Chestermere Annexation ¾Rocky View County – Growth Mgmt Strategy ¾ Conrich & Langdon 10,000 each ¾ Kathyrn & Delacour 5,000 each ¾ Hwy 1 & Glenmore Trail Business Corridors ¾Wheatland County ¾ Regional Growth Management Strategy Coming ¾ Hwy 1, Muirfield & More • USE OF WORKS Agreement ▫ Limit Storm Water Contribution ▫ Agreement on Lake Management ▫ Contribution to Infrastructure • LAND DEAL ▫ Lake Front Owners ▫ Town Jurisdiction ▫ Parks • Regional Storm Water Plan ▫ Underdrains • WID Storm Water Strategy ▫ System Based ▫ Wetlands ▫ Multi use • Continued Growth • Regional Storm Water Plans • Partnerships/Opportunities • Offstream Storage ▫ Langdon Reservoir Expansion ▫ Bruce Lake SIKSIKA NATION Bow River .