Water Distribution System Annual Report 2010

Transcription

1 Water Distribution System Annual Report 2010 Submitted for Environment and Local Government Drinking Water Approvals Prepared By: Serge Robichaud February 01, 2011

2 INTRODUCTION The purpose of this document is to satisfy condition 43 of the Certificate of Approval to operate a water distribution system W-249 for the City of Dieppe. The following Water Distribution Annual Report is intended to provide the Department of Environment and Local Government with updated information related to the drinking water distribution and facilities in the City of Dieppe. a) MONITORING RESULTS Please find attached all daily monitoring data from our SCADA System which monitors various sites throughout our different pressure zones for Free Available Chlorine, Turbidity and PH, Total Coliform, E-Coli, HPC test and THM test results are also recorded. In addition, Public Work Utility Water Workers flush 16 sites weekly, 14 sites bi-monthly and 141 sites monthly to ensure chlorine residuals are maintained above 0.2 mg/l at all dead-ends. These sites are periodically reviewed and updated throughout the year. b) WATER PRODUCTION Month 2009 Monthly Production ( m3 ) 2010 Monthly Production ( m3 ) Month 2009 Monthly Production ( m3 ) 2010 Monthly Production ( m3 ) January 220, ,808 July 220, ,604 February 195, ,893 August 229, ,469 March 219, ,997 September 222, ,776 April 208, ,965 October 216, ,440 May 225, ,674 November 208, ,821 June 229, ,357 December 216, ,453 Table 1: Water Production Data for the City of Dieppe TOTAL YEARLY PRODUCTION = 2,774,257 m AVERAGE DAILY CONSUMPTION = 7,600 m 3 / day Dieppe Water Distribution System Annual Report 2010 Page 2

3 c) OPERATIONAL HIGHLIGHTS 1. Significant Events There were a total of nine (9) watermain breaks during the year They were all circular breaks on Ductile Iron and Cast Iron pipes and had minimum effects on the water system. Two (2) significant events took place in the water system Avant-Garde and Gauvin Road (New watermain installation) Total Coliform counts were detected on the temporary water system installed to serve customers during the installations of new watermain. People were advised immediately to boil their water and all customers were connected to the new watermain within days. All temporary watermain installations were checked daily for chlorine residuals and tested weekly for bacteria and although the cause of the coliform count was unknown, the very hot summer we experienced definitely proved challenging to maintain good water quality. Oxiard Street During construction of a new subdivision in the St-Anselme zone, an existing watermain was ruptured causing a significant decrease in pressure throughout the zone. Strategic flushing, chlorine and turbidity samples along with three (3) bacteriological tests were taken throughout the zone by certified water operators. All tests results showed adequate chlorine and turbidity levels and no positive counts in the three (3) bacteria tests results. 2. System Improvements, Changes or Additions Certified Dieppe Utility Water Workers once again were kept very busy performing swab removal, pressure testing, disinfecting and commissioning of 6 km of new watermain installations in The following describes system improvements, changes and/or additions each categorized by: 10 New Subdivision Developments, 3 - Private Developments, 3 - Capital Projects: New Subdivisions 1. Parc Bonaventure Unit 39, Phase 5 = 340 m of 200mmØ (online March 11/10) 2. Pointe-aux-Renards = 423 m of 200mmØ (online May 17/10) = 21 m of 150mmØ (online May 17/10) 3. Village Metropolitain = 79 m of 200mmØ (online May 26/10) = 6 m of 150mmØ (online May 26/10) 4. Jardin Beausoleil Unit 3, Phase 1 = 422 m of 200mmØ (online Feb 11 and June 9 /10) = 24 m of 150mmØ (online Feb 11 and June 9 /10) 5. Domaine Belle Forêt Phase 1 = 293 m of 300mmØ (online June 2/10) = 397 m of 200mmØ (online June 2/10) = 25 m of 150mmØ (online June 2/10) Dieppe Water Distribution System Annual Report 2010 Page 3

4 6. Parc Bonaventure Unit 39, Phase 6 = 234 m of 200mmØ (online Aug. 23/10) = 7 m of 150mmØ (online Aug. 23/10) 7. Aviation = 1000 m of 350mmØ (online Oct. 18/10) 8. Belle-Forêt (rue des Érables) = 116 m of 200mmØ (online Nov. 2/10) = 20 m of 150mmØ (online Nov. 2/10) 9. Belle-Forêt (rue des Frènes) = 129 m of 200mmØ (online Nov. 2/10) 10. Domaine Le Vignoble Unit 2, Phase 3 = 265 m of 200mmØ (online Dec. 14/10) = 21 m of 150mmØ (online Dec. 14/10) Total 350mmØ PVC = 1000 m Total 300mmØ PVC = 293 m Total 200mmØ PVC = 2405 m Total 150mmØ PVC = 124 m Total = 3822 m Private Developments 1. Domaine du Ruisseau Phase 13 = 123 m of 200mmØ (online May 16/10) = 208 m of 150mmØ (online May 16/10) Sifroi Court (32 units) = 50 m of 150mmØ (online March 11/10) 3. Malley s Industries = 53 m of 200mmØ (online May 16/10) = 8 m of 150mmØ (online May 16/10) Total 200mmØPVC = 176 m Total 150mmØPVC = 266 m Total = 442 m Dieppe Water Distribution System Annual Report 2010 Page 4

5 Capital Projects 1. Avant-Garde = 563 m of 200mmØ (online July 7 and 27/10) = 41 m of 150mmØ (online July 7 and 27/10) 2. Paul Street = 721 m of 300mmØ (online July 14/10 and Sept. 27/10) = 37 m of 250mmØ (online July 14/10 and Sept. 27/10) = 5 m of 200mmØ (online July 14/10 and Sept. 27/10) = 5 m of 150mmØ (online July 14/10 and Sept. 27/10) 3. Gauvin Road = 125 m of 300mmØ (online Sept. 20/10 and Oct. 13/10) = 183 m of 200mmØ (online Sept. 20/10 and Oct. 13/10) = 18 m of 150mmØ (online Sept. 20/10 and Oct. 13/10) Total 300mmØ PVC = 846 m Total 250mmØ PVC = 37 m Total 200mmØ PVC = 751 m Total 150mmØ PVC = 64 m Total = 1698 m Temporary Watermain Four (4) temporary water systems totalling 2.6 km of 50 mm diameter pipe were installed for the capital project watermain renewals on Avant-Garde, Gauvin Road, Dover Rd and Paul Street. All piping were tested, disinfected and commissioned by certified Utility Water Workers. All temporary water systems were supplied by the City s fire hydrants and connected with portable backflow prevention device units and a water meter. Daily chlorine residual checks and weekly microbiological tests were taken to ensure continuous good water quality was maintained in the temporary water system. d) ALARM LOG Here are the critical alarms during the calendar year. Both alarms were at the Industrial Park Pumphouse and Reservoir. Date Time Alarm Type Response Corrective Action January 6 3:10 am High Turbidity Check Turbidity Clean and Calibrate Fill the Chlorine tank Low Chlorine Tank August 28 3:00 am Chlorine system and fix leak at the Level chlorine inlet line Table 2: City of Dieppe Alarm Log 2010 Dieppe Water Distribution System Annual Report 2010 Page 5

6 e) BACKFLOW PREVENTION AND CROSS & CONNECTION CONTROL ACTIVITIES The City of Dieppe implemented a cross connection program and has completed the inspections of all its industrial, institutional, commercial and multi-residential customers to ensure that all internal plumbing conforms to the City of Dieppe Water and Sewer By-Law no We are currently sending the notices for correction to our customers. The City of Dieppe is reminding to all of its customers the importance of this program which is designed to protect our water quality and the safety of our entire community. f) FLUSHING ACTIVITIES In summary, the purpose of a Uni-Directional Flushing Program is to systematically and unidirectionally flush the distribution system through the manipulation of valves and fire hydrants. Clean water is flushed from the source to the extremities, from larger to smaller pipes and from cleaner to dirtier pipes. The City of Dieppe continued with Aqua Data Atlantic for the updating and configuration of the computer programming of the UDF program. Once the program was completed, the City of Dieppe certified Water Operators solely performed the Uni-Directional Flushing program in 31 days. The following summarizes the results of the Uni-Directional Flushing program for 2010 compared to the years 2009, 2008 and It shows the effectiveness of the program since less time and water is required to achieve a clean system: Item Year 2002 Year 2008 Year 2009 Year 2010 Total number of fire hydrants in water system Number of fire hydrants flushed Total number of valves in water system Number of valves used Total amount of watermain in system Length of watermain flushed 103 km 130 km 139 km km 96 km km km km Total flushing time 120 hrs 98 hrs 113 hrs 112 hrs Total amount of water volume used 22,712 m ³ 18,927 m ³ 24,227 m ³ 23,848 m ³ Table 3: Uni-Directional Flushing Data for the City of Dieppe 2010 Dieppe Water Distribution System Annual Report 2010 Page 6

7 g) OPERATIONAL INFORMATION 1. Staffing 2. Training No change in our staff. At the present time the total numbers of employees working directly with water are one (1) Water and Sewer Manager, four (4) Water System Operators and four (4) Utility Water Workers. Reggie LeBlanc (Water and Sewer Manager) CWWA (Canadian Water and Wastewater Association) Excelling as Managers Martin LeBlanc (Water System Operator) Arc Flash Confined Space and High Angle Rescue Embridge Gas M40 Gas Monitor Training Building a Stainable Foundation for Infrastructure Renewal Nova Communication Showcase Serge Robichaud (Water System Operator) Arc Flash NB Backflow Prevention meeting Confined Space and High Angle Rescue Neptune Equinox / ARB_ N Sight Refresher Training M40 Gas Monitor Training Gabriel Belliveau (Water System Operator) Confined Space and High Angle Rescue Water Tower Rescue Protecting and Conserving Water Resources Lock out Tag Out WHMIS CLA-VAL Maintenance training M40 Gas Monitor Training Dieppe Water Distribution System Annual Report 2010 Page 7

8 Christian Vienneau (Water System Operator) Confined Space and High Angle Rescue Accessible Water & Wastewater Solutions Neptune Equinox / ARB_N Sight Refresher Training ACWWA (Atlantic Canada Water Wastewater Association) Basic Electrical & Safety Course Sansom Equipment Industrial Communications and SCADA Systems People Management Asset and Operations Management M40 Gas Monitor Training Serge Bisson (Utility Water Worker) Confined Space MPWWA (Maritime Province Water Wastewater Association) M40 Gas Monitor Training Basic Electrical & Safety Course Denis Bourgeois (Utility Water Worker) Confined Space and High Angle Rescue Water Tower Rescue M40 Gas Monitor Training MPWWA (Maritime Province Water Wastewater Association) 3. Certification There were no additional certification levels achieved by our system staff in the calendar year. h) PUBLIC RELATIONS 1. Notification Here are a few example of notification that has been issued for the City of Dieppe residences and commercial customers of various water system activities such as line flushing, watermain closure, water conservation and cross connection program. Dieppe Water Distribution System Annual Report 2010 Page 8

9 Public Notices Flushing of Hydrants The flushing of fire hydrants will be done as part of the maintenance program of the City of Dieppe from April 23rd to June 8th, Monday to Friday, 8:00 a.m. to 5:00 p.m. Water may be discolored during this period. Residents are advised to run their water and check it before laundering. We regret any inconvenience this work may cause. PUBLIC NOTICE AMIRAULT STREET The City of Dieppe s Public Works Department will be undertaking work on the water system in your area on Wednesday, July 9, 2010 from 8:30 a.m. to 6:00 p.m., assuming no unforeseen delays. During this time period, YOUR WATER SERVICE WILL BE SHUT OFF. To minimize the potential inconvenience from this disruption to your service, we recommend the following: 1) Close the water valve where the water line enters your basement. 2) When the water service is restored, run your cold water a few minutes or until clear water shows. ONLY AFTER, run your hot water until clear hot water shows. We regret any inconvenience. Thank you for your cooperation and understanding Dieppe Water Distribution System Annual Report 2010 Page 9

10 2. Brochures Brochure 1 Water conservation Tips Brochure 2 Water conservation for tenants Dieppe Water Distribution System Annual Report 2010 Page 10

11 Brochure 3 Cross Connection Program In May 2010, the City of Dieppe in conjunction with the National Public Works Week did a presentation to the Amirault elementary school with a visit to our Water Tower. This helped to better inform the younger citizens of Dieppe. Positive feedback came from the teachers of the schools and also the parents. The City of Dieppe will be continuing this event during the Public Works Week to the same school with different students every year. Dieppe Water Distribution System Annual Report 2010 Page 11

12 3. Complaints During the calendar year there were a total of 14 complaints. Five (5) were low pressure complaints, three (3) were discoloration in the water, two (2) were high pressure complaints, two (2) were taste & odor, one (1) was a frozen service and one (1) was a service leak. i) NEW CONNECTIONS / WATERMAINS 1. New connections / repairs completed in 2010 Location Type Date 1. Regis / Paul St. Watermain Repair January Gould / Acadie Watermain Repair February Orleans Watermain Repair March Chartersville Rd. Watermain Repair April 7 5. Lakeburn Service Repair April 7 6. Syrah Service Repair April Malenfant Blvd. Valve Repair April Oxiard Watermain Repair April Paul St. Service Repair May Canaan New Connection May Beaumont / Bernard Valve Repair June Avant-Garde New Valve Installation June Parc Rotary New Connection July Amirault Watermain Repair July Gauvin Rd. Watermain Repair August Thibodeau New Connection August Champlain (Mathieu-Martin) Valve Repair August Thomas / Gauvin Rd. New Connection August Thomas / Gauvin Rd. New Connection September Amirault Watermain Repair September Champlain St. New Connection September Champlain St. Valve Repair October Pault St. Valve Repair October Champlain Place Valve Repair October Eunice Watermain Repair October Champlain Place Fire Hydrant Relocation November Chartersville Rd. Watermain Repair November Moncton Airport Watermain Repair December 29 Table 4: Watermain New Connection and Repair for the City of Dieppe 2010 Dieppe Water Distribution System Annual Report 2010 Page 12

13 2. Analytical results for each new connection / repair Location for new connections or Repair Bacteria Test Location Total Coliform E coli Free Chlorine 1. Regis / Paul St. 473 Pault St ND ND 0.81 ppm 2. Gould / Acadie 525 Acadie ND ND 0.65 ppm 3. Orleans 167 Orleans ND ND 0.58 ppm 4. Chartersville Rd. 264 Chartersville ND ND 0.69 ppm 5. Lakeburn 166 Lakeburn ND ND 0.79 ppm 6. Syrah 93 Syrah ND ND 0.71 ppm 7. Malenfant Blvd. 700 Malenfant ND ND 0.45 ppm 8. Paul St. 473 Paul St. ND ND 0.87 ppm 9. Canaan 155 Canaan ND ND 0.57 ppm 10. Beaumont / Bernard 386 Beaumont ND ND 0.76 ppm 11. Avant-Garde 475 Avant-Garde ND ND 0.64 ppm 12. Parc Rotary 200 rue du Parc ND ND 0.69 ppm 13. Amirault 1824 Amirault ND ND 0.69 ppm 14. Gauvin Rd. 660 Gauvin Rd ND ND 0.60 ppm 15. Thibodeau 600 B Canso ND ND 0.68 ppm 16. Champlain (Mathieu- Martin) 511 Champlain ND ND 0.53 ppm 17. Thomas / Gauvin Rd. 121 Thériault 0.49 ppm ND ND 317 Thomas 0.57 ppm 18. Thomas / Gauvin Rd. 668 Gauvin Rd ND ND 0.80 ppm 19. Amirault 457 Amirault ND ND 0.68 ppm 20. Champlain St Champlain ND ND 1.08 ppm 21. Champlain St Champlain ND ND 0.75 ppm 22. Paul St. 459 Paul St. ND ND 0.82 ppm 23. Champlain Place Toys R Us ND ND 0.71 ppm 24. Eunice 449 Eunice ND ND 0.72 ppm 25. Champlain Place Wal-Mart ND ND 0.85 ppm 26. Chartersville Rd. 779 Chartersville ND ND 0.61 ppm 27. Moncton Airport Old Terminal ND ND 0.71 ppm ND Not Detected Table 5: Analytical results for new Connection and Repair for the City of Dieppe 2010 j) ADDITIONAL COMMENTS The water entering the city is of excellent quality. Over the years, system improvements from capital projects, new construction, upgrades to water facilities and regular yearly maintenance programs have been projects that water utility staff continually work on to ensure that Dieppe customers continue to receive excellent water quality with minimum interruptions. Dieppe Water Distribution System Annual Report 2010 Page 13