Water System
Emergency Response Plan
November 2008
Water System Emergency Response Plan
Table of Contents
Page No.
1. The Plan
.1 What is the Water System Emergency Response Plan .................................................... 2
.2 How to Use This Plan ........................................................................................................ 4
.3 Updates to the Emergency Response Plan ........................................................................ 5
.1 Registration ........................................................................................................... 5
.2 Updates .................................................................................................................. 6
2. Water System Emergency Response Plan Holders
.1 Internal Plan Holders ......................................................................................................... 2
.2 External Plan Holders ........................................................................................................ 2
3. Communication and Command
.1 Communication and Command ........................................................................................ 2
.2 Initial Emergency Meeting.................................................................................................4
.3 Internal Communications .................................................................................................. 5
.4 External Emergency Message ...........................................................................................6
.5 Phone Broadcasting ........................................................................................................... 7
.6 Voice Broadcast Scripts for Nanaimo Water Supply System...........................................8
.7 Communication During Power, TV and Telephone Outages .......................................... 8
4. Emergency Response Plan - Action List
.1 Defining Types of Emergencies ....................................................................................3
.2 Returning to Normal Operations ...................................................................................4
.3 Extended Loss of BC Hydro Power Supply .................................................................5
.4 Failure of Programmable Logic Controllers ..................................................................7
.5 Failure of SCADA or PLC Control System...................................................................8
.6 Chlorine Leak – Water Process Centre .........................................................................9
.7 Failure of Chlorination System - Water Process Centre..............................................11
.8 Chlorine Leak - No. 1 Reservoir..................................................................................13
.9 Failure of the Chlorination System - No. 1 Reservoir ................................................15
.10 Primary Supply Main Failure......................................................................................16
.11 Bacteriological Contamination of the Distribution System ........................................18
.12 Backflow / Backpressure Incident ..............................................................................20
.13 Reservoir Intrusion......................................................................................................22
.14 Building Fire ...............................................................................................................24
.15 Water Source High Turbidity Readings......................................................................25
.16 Plane Crash / Automobile Accident in Watershed .....................................................27
.17 Slope / Bank Failure in Watershed .............................................................................28
.18 Watershed Fire ............................................................................................................30
.19 Jump Creek Dam Imminent Breach / Dam Breach ....................................................31
.20 South Fork Dam Imminent Structural Problem / Dam Breach...................................33
.21 Major Earthquake........................................................................................................34
.22 Water Contamination at Source and/or Reservoirs.....................................................36
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Water System Emergency Response Plan
Page No.
.23 Secondary Supply Main Failure
− College Park to Bowen Road ....................................................................................37
− Bowen Road ..............................................................................................................38
− Boundary Avenue .................................................................................................39
− Island Highway and Metral Drive .........................................................................41
− Rock City Road .....................................................................................................42
− Duke Point ............................................................................................................43
.24 Pump Station Failure
− College Park .............................................................................................................45
− Rutherford Road ........................................................................................................45
− Lost Lake ...................................................................................................................45
− Prince John ................................................................................................................45
− Towers Reservoir ......................................................................................................45
− Wiltshire ....................................................................................................................45
LIST OF APPENDICES
A. Master Contact List
Water Works Personnel ........................................................................................................... 1
Emergency Coordination Centre .............................................................................................1
Island Timberlands .................................................................................................................. 1
Fire Department ....................................................................................................................... 1
Police ........................................................................................................................................ 2
Ambulance ............................................................................................................................... 2
Province of British Columbia .................................................................................................. 2
Vancouver Island Health Authority ........................................................................................ 2
Testing Labs ............................................................................................................................. 3
Utilities ..................................................................................................................................... 3
Transportation and Highways ................................................................................................. 3
Contractors – Excavation ........................................................................................................ 4
Contractors : General ............................................................................................................... 4
Electric Generator Rental ....................................................................................................... 4
Bottled Water ........................................................................................................................... 4
Tanker Trucks .......................................................................................................................... 4
Alternate Water Sources .......................................................................................................... 5
Other Agencies and Services ................................................................................................... 5
Local Media ............................................................................................................................. 6
Suppliers and Transport Capabilities of Potable/Non-Potable Water .................................... 6
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Water System Emergency Response Plan
Page No.
B. Water Notices
General Information Concerning All Notices ..........................................................................2
Who Are Most at Risk of Waterborne Illness? ...................................................................... 4
Types of Emergencies
Presence of Fecal Coliform/E. coli - Background & Actions .............................................4
Total Coliform Bacteria Present - Background & Actions .................................................5
Disinfection System Failure - Background & Actions .......................................................6
High Turbidity Levels - Background & Actions ................................................................7
Broken Watermain or Damaged Reservoir - Background & Actions ................................8
Chemical Contamination - Background & Actions ............................................................8
Contamination from Backflow (Cross-Connection) - Background & Actions ...................9
Waterborne Disease Outbreak - Background & Actions ..................................................10
Public Drinking Water Notices
PA#1 - Boil Water ............................................................................................................12
PA#2 - High Turbidity ......................................................................................................13
PA#3 - Do Not Use The Water .........................................................................................14
PA#4 - Mandatory Conservation ......................................................................................15
Instructions for Hand Delivery of Water Notices ..................................................................16
Examples of Previous Advisories and Notices Issued
High Turbidity Notice (Dec. 4, 2007) ...............................................................................17
High Turbidity Update (Dec. 4, 2007) ..............................................................................18
High Turbidity Notice Removed ......................................................................................19
C. Post-Incident Report
Completing a Post Incident Report and Incident Form .......................................................... 2
Post Incident Report ................................................................................................................. 4
Incident Form ........................................................................................................................... 6
D. Letters and Forms
Letter of Understanding............................................................................................................ 2
Acknowledgement Form ......................................................................................................... 3
Amendment Form................................................................................................................... 4
E. Material Safety Data Sheets
Inflow/Outflow Chart
Fire-Trol 931
Sodium Hypochlorite
Chlorine, Liquefied Gas
F. Maps and Drawings
Critical Sites Map Drawing F - 1
Critical Sites List
Reference List of Drawing Numbers
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Water System Emergency Response Plan
G. Emergency Response Procedures
Page No.
PREFACE ..................................................................................................................................2
TABLE OF CONTENTS ...........................................................................................................4
INTRODUCTION ......................................................................................................................6
General .................................................................................................................................6
Emergency Water Supply Requirements ...........................................................................8
Emergency Water Sources ................................................................................................13
Water Quality ....................................................................................................................15
Mobile Pumping ................................................................................................................15
Site Access .........................................................................................................................15
Call-Out Procedures ..........................................................................................................15
PLAN OF OPERATIONS .......................................................................................................16
Failure of Primary Storage (Jump Creek and South Fork) ..............................................16
Failure of Supply Pipelines ...............................................................................................17
Failure of Major Distribution Pipelines ............................................................................19
Failure of Distribution Storage .........................................................................................20
Failure of Booster Pump Stations .....................................................................................22
Extended Power Failure ....................................................................................................25
IMPLEMENTATION OF EMERGENCY SUPPLY ............................................................27
Public Information .............................................................................................................27
Internal Communications ..................................................................................................27
Emergency Pumping .........................................................................................................28
A. Pryde Avenue Pump Station ..................................................................................28
B. Mobile Pumpers ......................................................................................................28
Emergency Diversions ......................................................................................................29
A. Chase River .............................................................................................................29
B. Westwood Lake to Chase River .............................................................................30
C. Upper Nanaimo River .............................................................................................30
D. Long Lake ...............................................................................................................30
E. Lower Nanaimo River .............................................................................................31
F. Lost Lake ..................................................................................................................31
G. Westwood Lake to PZ241 ......................................................................................31
H. Brannen Lake ..........................................................................................................32
Rotating Supply .................................................................................................................32
Tanker Supply ...................................................................................................................36
Bottled Water Supply ........................................................................................................36
Nuclear Contamination ..............................................................................................37
DRAWINGS
G – 1 Key Plan
G – 2 Supply Pipelines
G – 3 Distribution System
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Water System Emergency Response Plan
H. Emergency Materials List and Storage Locations
1. Potable Water Tanks (fit in bed of City trucks)
2. Mobile Water Treatment Plant
3. Large Pumps Available for Rent
4. Waterworks Materials Suppliers
5. Pipe Inventory
6. Couplings Inventory
I. Organization Charts
1. Emergency Operations Centre Organization Chart
2. Incident command System Organization Chart
3. Engineering and Public Works Organization Chart
J. Mobile Pumping Equipment and Emergency Water Intake Requirements
1. Nanaimo Fire Department List of Vehicles & Equipment
2. Mobile Pumping Requirement
3. Pump Discharge Manifold
K. Emergency Water Diversion Schematics
1. Chase River at No. 1 Reservoir
2. Westwood Lake to the Chase River
3. Upper Nanaimo River
4. Long Lake
5. Lower Nanaimo River
6. Lost Lake at No. 2 Reservoir
7. Westwood Lake to PZ 241
8. Brannen Lake
L. Other Schematics and Facility Valving
1. Water Process Centre
2. Reservoirs No. 3A and 3B – College Park
3. Pryde Avenue Pump Station
4. Reservoir No. 4 - Rod Glen
5. Reservoir No. 7 - Tanya Driver
6. Reservoir No. 2 - Lost Lake
7. Water System Operation During High Turbidity Events
M. Chlorination Station Safety Procedures
1. Chlorine – General Information
2. Procedures for Handling Chlorine – No. 1 Reservoir
3. Procedures for Handling Chlorine – Water Process Centre
N. Reservoir Contamination Flowchart
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Water System Emergency Response Plan
Section 1
1. The Plan
.1 What is the Water System Emergency Response Plan? .................2
.2 How to Use This Plan. ....................................................................4
.3 Updates to This Guide .....................................................................5
.1 Registration ...................................................................................5
.2 Updates .........................................................................................6
November 2008
The Plan
Page 1 of 6
Water System Emergency Response Plan
Section 1
1.1 What is the Water System Emergency Response Plan?
The System
The City of Nanaimo is responsible for providing adequate supplies of clean potable water to its
citizens, even in the event of an emergency or disaster. Disruptions in water quality and delivery
may result from emergencies such as natural disasters, accidents, or intentional acts. If prepared
in advanced, the City will be more effective at responding to and recovering from such
emergencies and disasters. The goal of the City is to minimize all adverse impacts resulting from
disruptions in the water system - this can be achieved only through sound emergency planning
and thorough communication coordination.
In 2004, the City of Nanaimo took ownership of the Greater Nanaimo Water District.
The City of Nanaimo now is responsible for the supply of water to the City of Nanaimo,
Southwest Extension and Snuneymuxw First Nation (I.R. #1), while the responsibility for the
operation and maintenance of the individual water distribution system remains the responsibility
of each water purveyor.
With the disbandment of the Greater Nanaimo Water District and its Water Board, a new Water
Supply Advisory committee was formed. The advisory committee serves as an advisory body
responsible for making recommendations to the Nanaimo City Council on matters related to the
supply of water.
Presently the City operates a single surface water source at the headwaters on the South Fork of
the Nanaimo River. The Watershed is approximately 230 hectares with two supply dams for
storage. The water is transported from the watershed by duplicate primary supply mains to the
City of Nanaimo and Southwest Extension. At the end of the primary supply mains are two water
treatment facilities, one in Extension and the other at No. 1 Reservoir. The water is then
distributed to balancing reservoirs by large secondary supply mains. The distribution system then
carries the water to the end user through approximately 500 kilometers of smaller diameter mains
and control valves that regulate system pressures.
Primary Supply System
The City’s bulk water supply is provided by two supply dams located in the South Nanaimo
River Watershed. The upper dam, Jump Creek Dam constructed in 1974 impounds 17 million
cubic meters. Jump Creek Dam is used to maintain full storage at the lower South Fork Dam,
which is the starting point for the primary supply mains to the City. From there two parallel steel
supply mains carry the water approximately 20 kilometers to the City of Nanaimo and
Southwest Extension.
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Water System Emergency Response Plan
Section 1
The primary supply mains starting sizes are 760mm and 1220 mm. The supply mains step down
in size as the lines approach the city and pressures increase.
Water Treatment
The City's drinking water receives primary disinfection with gaseous chlorine at two sites Water Process Centre and Reservoir No. 1. At each of these sites, a delay line is used to measure
and verify adequate chlorine concentration of 1.0 to 1.2 mg/L (ppm) is achieved.
The City's Water Operators also ensure residual disinfection of 0.20 mg/L (ppm) free chlorine is
provided at the ends of the distribution system.
Secondary Supply Mains
Water from the Water Process Centre in Extension supplies the Southwest Extension and
transports bulk water through secondary supply mains to Cinnabar, Duke Point Industrial Park,
College Park and North Nanaimo. Several Balancing reservoirs are located throughout this
system to accommodate peak hour and peak day flows.
Water from the No. 1 Reservoir chlorination facilities is carried to the central Nanaimo
distribution system, extending from Harewood in the south to Stephenson Point in the north.
Pump Stations
Eight pump stations have been constructed to supply water to higher elevations and/or to the
ends of the system during peak summer demands.
Pressure Control Valves (PRV’s)
The primary and secondary supply mains have operating pressures up to 300 psi. This has
allowed the City to deliver 75% of the water to its customers by gravity. Once the supply enters
the distribution system approximately 300 pressure reducing and relief valves are installed to
provide safe and appropriate pressure to individual users.
Water Meters
The system supplies over 23,000 residential and over 1000 Industrial, Commercial and
Institutional connections. Snuneymuxw First Nation (I.R. #1) is provided water through a bulk
meter.
In 1990, expanded water rates were implemented to help conserve water. The current peak day
demands are now the same as peak demands from 1986.
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The Plan
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Water System Emergency Response Plan
Section 1
The Plan
This Emergency Response Plan (ERP) has been prepared to guide the City in responding to an
emergency in the City’s water system including the South Nanaimo River Watershed and storage
reservoirs, the primary transmission systems from source to storage reservoirs, pump stations,
PRV stations and chlorination stations. The purpose of the ERP is to guide the City and response
agencies in the event of an emergency in order to:
•
•
•
•
•
Provide the earliest response to an emergency condition;
Ensure that water quality and public health are not compromised;
Ensure that water for fire fighting is available;
Restore normal water system operation; and
Protect the natural environment from impacts associated with the system operation in the
event of an emergency.
This plan is intended for use of City of Nanaimo staff in responding to emergency scenarios
related to the City’s water system serving the City of Nanaimo, and bulk water supply to
the Southwest Extension and Snuneymuxw First Nation Reserves within the municipal
boundaries. This plan is an internal document for City staff implementation and use only.
This document serves as informational purposes only to the external plan holders.
1.2 How to Use This Plan
The Water System Emergency Response Plan is meant to act as a guide in the event of a water
system emergency within the City of Nanaimo. This is important because the plan is written to
act as a reference rather than an explicit set of instructions. The more familiar everyone is with
the format and information within the plan the more helpful it will be in the event of a real
emergency.
In order for this plan to be effective in its use, it is imperative that each plan holder read
the plan in advance.
Within the section labeled Action Lists many potential water system emergencies have already
been anticipated and are listed. Each potential emergency contains a guide for the persons
involved to reference in an attempt to avert further damage. It is essential that this section be
reviewed in advance because the lists are intended to act as only a reference for guiding one
through the respective emergency. It is crucial to have a predetermined plan for how your
department, company or organization will react when faced with such emergencies and not rely
solely on these sets of recommendations. You will notice that at the end of each Action List there
is a set of suggested contacts. All contacts for people or organizations that are referenced and
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The Plan
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Water System Emergency Response Plan
Section 1
located in other sections throughout the document are to be found in the Master Contact List
(Appendix A).
Another vital component of the ERP is the post emergency response. We ask that an internal
document referred to as the Post Incident Report (Appendix C) be filled out after each water
system emergency. This will typically be prepared by the Water Resources Manager in
Engineering and Public Works. However, to allow this process to be as straightforward as
possible, we ask that those who carry out the actions in the Action Lists, for example the
technicians involved, please fill out an Incident Form at the time they execute their actions
(Appendix C). This form asks the individual to list out each of the actions taken along with the
time and date the action was executed. The form also provides space for port-incident comments.
After the incident has been alleviated, it is asked that the form be sent to the Water Resources
Manager in Engineering and Public Works. This requirement allows participants the chance to
provide comments and recommendations about the emergency Action List in which they
followed while allowing the City to retain a detailed account of the actions taken to alleviate the
water system emergency. Filling out the Incident Form and finally the Post Incident Report
thereby marks the first steps in improving emergency response for the following year.
Incorporating techniques that worked better and eliminating those that did not work, allows the
City to improve the water system emergency action strategy every year.
In addition, annual tabletop exercises and regular updates are recommended. We ask all plan
holders to attend meetings and participate in regards to offering input and recommendations so
that the Water System Emergency Response Plan will become more effective and thorough in
the upcoming years. It is important to note that an emergency response plan such as this is of
little or no value if individuals do not review it, know how to use it, or participate in its creation
and evolution. Thank you for your participation as we enjoy working closely with you on this
project.
1.3 Updates to This Guide
1.3.1 Registration
The City of Nanaimo will distribute the Water System Emergency Response Plans to agencies
and companies, and after each has signed and returned to the City of Nanaimo the Letter of
Understanding regarding this Plan (see Appendix D), those agencies will be registered as
Emergency Response Plan Holders. Registration will ensure that you receive updates to this
Guide. You should ensure that your agency is registered with the City of Nanaimo as a holder of
an ERP.
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Water System Emergency Response Plan
Section 1
1.3.2
Updates
The City of Nanaimo intends to review and, if necessary update, this ERP every year. A revision
will usually consist of one or more pages to be added to or replaced in this ERP. Revisions will
be distributed by the City of Nanaimo to the registered holders of this ERP with instructions on
inserting the revisions.
An emergency plan is of little or no value if it contains out-dated
information. Please ensure this Emergency Response Plan contains
the latest updates.
Internet
The City of Nanaimo should post information on any emergencies covered in this document on
the City website at www.nanaimo.ca as they arise.
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Water System Emergency Response Plan
Section 2
2. Water System Emergency Response Plan Holders
.1 Internal Plan Holders ..................................................................2
.2 External Plan Holders .................................................................2
Updated January 2009
Plan Holders
Page 1 of 2
Water System Emergency Response Plan
Section 2
HOLDERS OF THE WATER SYSTEM EMERGENCY RESPONSE MANUAL
Designated Use
Binder #
2.1 INTERNAL PLAN HOLDERS
Public Works
1
Water Resources
2
Utilities
3
Waterworks
4
Engineering Library
5
Public Works Library
6
Engineering Support
Services
7
Name
Mailing Address
Tom Hickey, Director 2020 Labieux Road
Nanaimo, B.C. V9T 6J9
Bill Sims, Manager 2020 Labieux Road
Nanaimo, B.C. V9T 6J9
John Elliot, Manager 2020 Labieux Road
Nanaimo, B.C. V9T 6J9
Ritchie Fulla, 2020 Labieux Road
General Foreman Nanaimo, B.C. V9T 6J9
455 Wallace Street
Nanaimo, B.C. V9R 5J6
2020 Labieux Road
Nanaimo, B.C. V9T 6J9
Leanne Morrison, 455 Wallace Street
Communication Coordinator Nanaimo, B.C. V9R 5J6
Telephone
250-756-5301
250-756-5302
250-756-5305
250-758-5222
250-755-4409
250-758-5222
250-755-4409
2.2 EXTERNAL PLAN HOLDERS
Fire Department
8
Ron Lambert, Fire Chief
Nanaimo Emergency
Coordination Centre
Vancouver Island
Health Authority
9
10
Vancouver Island
Health Authority
11
Dam Safety
12
Dam Safety
13
Updated January 2009
455 Wallace Street
250-755-7550
Nanaimo, B.C. V9R 5J6
Responsibilities being assumed by Fire Department for now.
Dwayne Stroh (Courtenay)
Chief Public Health Inspector
Home: 1-250-339-6290
Cell: 1-250-897-2298
Terry Preston
Senior Public Health
Inspector
Home: 250-758-6096
Cell: 250-714-2034
Will Jolley, Section Head
John Baldwin
Dam Safety Officer
355 - 11th Street
Courtenay, B.C.
V9N 1S4
1-250-334-5456
3rd floor, 6475 Metral Drive
Nanaimo, B.C.
V9T 2L9
250-755-6215
Ministry of Environment
P.O.Box 9340
Station Provincial
Government
Victoria, B.C. V8W 9M1
Ministry of Environment
2080A Labieux Road
Nanaimo, B.C. V9T 6J9
1-250-387-3263
250-751-3179
Plan Holders
Page 2 of 2
Water System Emergency Response Plan
Section 3
3. Communication and Command
.1
.2
.3
.4
.5
.6
.7
Communication and Command .............................................................................................2
.1 Why is Communication Important? ....................................................................................2
.2 What is the Line of Communication? ..................................................................................2
Initial Emergency Meeting ....................................................................................................4
Internal Communications .......................................................................................................5
External Emergency Message ................................................................................................6
Phone Broadcasting ...............................................................................................................7
Voice Broadcast Scripts for Nanaimo Water Supply System ................................................8
Communication During Power, TV and Telephone Outages ................................................8
Note:
Organization charts and the emergency communication
flow chart are contained in Appendix I
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Communication and Command
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Water System Emergency Response Plan
Section 3
3.1 Communication and Command
3.1.1
Why is Communication Important?
Direct and open lines of communication will help ensure that the health and safety of consumers
are preserved throughout water emergency incidents, that effective action is taken to resolve
problems and that there is quick response, minimizing any harm resulting from the emergency.
This includes not only resource and internal communication but also informative and timely
communication with the public.
The Incident Command System was developed in the 1970’s after a series of fires struck
California, near the boundaries between urban authorities, leaving many injured or dead. When
retrospect analysis was conducted in regards to the incident, it was found that incident failures
during the fires were due to a lack of adequate management and communication rather than a
lack of resources or failure of tactics. In response ICS was created as a standardized, on-scene,
all-risk incident management concept that would confer considerable internal flexibility and
could grow or shrink to meet different needs. ICS is now a proven managerial system based on
successful cost effective business practices that can be applied to incidents of any magnitude.
On the advice of several local emergency coordinators and because the Provincial Emergency
Program (PEP) has begun to adopt the standardized emergency response structure known as the
Incident Command System (ICS) the City of Nanaimo thought it important to switch its
emergency structure to that of ICS as well. Therefore, the communication flow and titles of those
delegated authority during water related incidents in the current document will be referred to as
those proposed in ICS planning and practice.
3.1.2 What is the Line of Communication?
Incident Commander
Upon notification of the emergency, the Director of Engineering and Public Works or the most
senior Manager contacted from that Department will assume position of Incident Commander.
This individual will be responsible for contacting and assembling the Command Staff and
General Staff as required. The primary responsibility of the Incident Commander is to ensure
effective overall management of the incident. This involves ensuring incident safety for all of
those involved, providing information services to external and internal stakeholders and
maintaining liaison with other agencies involved with the incident. Until authority has been
delegated to positions within General and Command Staff, the Incident Commander has direct
control over all aspects of the emergency. It is also likely that with small emergencies the
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Communication and Command
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Water System Emergency Response Plan
Section 3
Incident Commander will feel it unnecessary to give out all or any of the subsequent positions
and may solve the incident independently.
Command Staff
Upon notification of the emergency, the acting Incident Commander will assign positions of
Command Staff and Operations Staff. The role of the Command Staff is to provide information,
safety, and liaison services for the entire organization. There are three such positions to be
delegated as required, the Public Information Officer, Safety Officer, and Liaison Officer.
Fortunately, for the City the magnitude of any single water related emergency will most likely
not require all three positions but instead focus primarily on the Public Information Officer who
will serve as a conduit for information to the internal and external stakeholders, including the
media and/or any other organizations seeking information. The structure of the Command Staff
is outlined in the Communication Flow Chart more thoroughly.
The Public Information Officer is the only line of communication between the Incident
Commander and all other City agencies and/or media outlets requiring information on the
emergency. This individual is expected to supply updates at regular intervals regarding the
emergency situation that will be provided to all of the inquiring agencies. It is the responsibility
of the Public Information Officer to intercept and provide direction to non-critical parties as to
ensure that the ‘Emergency Action Teams’ set up under various Sections can concentrate on the
incident at hand.
In addition, it is the responsibility of the Incident Commander to contact all coordinating and
governmental agencies as required unless this task has been delegated to the Public Information
Officer. It is the priority of the individual in charge to work with the VIHA Nanaimo
Environmental Health Office (EHO) to mitigate any dangers to public health. Under the
guidance of the VIHA Nanaimo Environmental Health Office (EHO), the Incident Commander
(or Public Information Officer) will issue any boil water or water restriction notices necessary. It
should be noted that depending on the size of the emergency such actions may be delegated out
otherwise if not such actions remain the responsibility of the Incident Commander.
Call Centres
The Public Information Officer will be updating the call centres at regular intervals on the
current emergency situation. It is important that these centres deal directly with concerned
individuals and not transfer these calls unless warranted, enabling Section Chiefs to work on
resolving the emergency without interference. The public should be assured that all possible
resources are being allocated to restore normal operations and be advised where to access
situation updates.
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Communication and Command
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Water System Emergency Response Plan
Section 3
Should the situation allow for an unmanned response, recorded messages providing an update
may be used. If the emergency is severe, 24-hour emergency access lines will be set in place. In
addition, it is important that the Public Information Officer send out an emergency information
email to all City Employees that informs them of the situation and enables them to deal with any
public inquiries.
General Staff
Upon notification of the emergency, the acting Incident Commander will also assign the
positions of General Staff. The General Staff will consist of one or more Sections; Operations,
Planning, Logistics and/or Finance/Administration as required. The scope of the majority of
water related emergencies occurring within the City of Nanaimo would likely only require an
Operations Section. The Operations Section Chief will likely be the Senior Manager of Public
Works in the majority of water system emergencies, but in situations deemed more severe or
requiring special training may require other agencies such as the Fire Department. The
Operations Section function is to provide all the tactile fieldwork necessary to help alleviate the
incident. This means that most of the incident resources are ultimately assigned to the Operations
Section. The Operations Section will be divided into groups that will be segregated and labeled
based on functionality. This can be visualized more accurately on the Communication Flow
Chart.
3.2 Initial Emergency Meeting
Once an emergency has been identified, the Incident Commander must meet with whomever
they feel will be the most relevant individuals and agencies to discuss the situation and assign
responsibility. At this meeting the Incident Commander is responsible for delegating out
authority while adhering to the structure and planning initiatives outlined by ICS. Immediate
action may have already gone underway prior to this meeting but it is imperative that duties and
responsibilities be formally assigned to manage the emergency as effectively as possible. This
meeting does not have to be held in person and can be facilitated by telephone conference if the
situation is warranted. If authority is not assigned the Incident Commander will remain the
primary body in charge of all aspects related to emergency situation.
Objectives
1. Identify who will be taking the following responsibilities:
a) Incident Commander.
b) Public Information Officer and Operations Section Chief.
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Communication and Command
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Water System Emergency Response Plan
Section 3
c) Additional Section Chiefs (Operations, Planning, Logistics and Finance/Administration
Chiefs) assigned as required.
2. Discuss the emergency response strategy including:
a) The level of emergency.
b) Extent of affected area.
c) Need for external resources.
d) Response strategy and action plan.
e) Communications/media relations strategy.
f) Communications update schedule/frequency.
g) When the next emergency meeting will be.
3.3 Internal Communications
Protocol
1. The Public Information Officer will be responsible for sending an internal email or telephone
call to all call centres that identifies:
a) What the emergency is.
b) When it began.
c) Where it is.
d) Who is affected by the emergency
e) What is being done to correct the situation
f) How long it is expected to last if known.
g) What information to provide to the public.
h) Where they can direct calls that require more information.
i) When they will be receiving the next update.
2. The call centers that require this email/phone call are:
a) Administration Front Counter/Main Switchboard
b) Public Works Front Counter
c) Engineering Front Counter
November 2008
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Section 3
d) Fire Department/ After Hours Emergency Line
e) RCMP
f) Others as required
3. Emergency updates must be provided to these call centers;
a) as soon as new information becomes available or
b) at the frequency decided in the initial emergency meeting or
c) at least twice a day
4. If the emergency is expected to continue after regular business hours have concluded then an
example telephone message should be provided to all call centres a half hour before the end
of the business day; however, if the emergency is deemed severe call centres may be
accessed 24 hours. See the attached example for external greeting.
5. It may also be warranted to provide an email to all domains to help facilitate accurate
dissemination of information. This will be decided by key management during an emergency
meeting.
3.4 External Emergency Message
Example
You have reached the (call center name) after hours message system on (current date) .
Description of emergency and area affected.
Instructions for affected residents.
The City is working to resolve the problem and will be providing further information on the
situation as it becomes available. Further information can be obtained from our website at
www.nanaimo.ca.
If you require immediate assistance, please dial 250-758-5222 for the after-hours emergency
line. If you would like to leave a message, please do so after the tone and we will return your call
as soon as possible. Thank you for patience and cooperation.
November 2008
Communication and Command
Page 6 of 9
Water System Emergency Response Plan
Section 3
3.5 Phone Broadcasting
The City of Nanaimo subscribes to VoiceReach, a message delivery system which can send a
pre-recorded voice message to multiple telephones, simultaneously.
The City may, as one method of contacting the public, use this system to quickly send off a prerecorded message to all citizens, businesses, organizations, schools, care facilities, hospitals, etc.
included in Nanaimo's white and yellow pages phone directory to communicate emergency or
water advisories or notices.
Advanced features of this system are:
•
The VoiceReach platform supports 1000's simultaneous call attempts for outbound
connections, including Voice Mail detection procedure and 120 concurrent incoming
connections.
•
The VoiceReach platform is able to distinguish between the following scenarios:
1. The VoiceReach platform calls a telephone subscriber and the subscriber answers.
2. The VoiceReach platform calls a telephone subscriber and the subscriber does not answer
the phone. In such an event, the VoiceReach platform will call the subscriber again, at a
different time.
3. The VoiceReach platform calls a telephone subscriber and it's greeted by Voice Mail. In
such an event, the VoiceReach platform is able to detect the voice mail service and it will
terminate the call. The VoiceReach platform will call the telephone subscriber again, at a
different time or,
4. The Voice Reach platform can play a certain voice file to a human response and a
different voice file that will be kept as a message with the voice mail.
•
Each call that was made from the platform to a telephone subscriber will be logged and
accounted for. No need for monitoring and keeping track of protocols.
•
Upon the reception of an incoming call, the system will correlate the incoming call to an
outgoing call - for reporting and statistics purposes. If no outgoing call can be correlated, the
incoming call is deemed as a random access user, and is reported as such.
November 2008
Communication and Command
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Water System Emergency Response Plan
Section 3
3.6 Voice Broadcast Scripts for Nanaimo Water Supply System
The following scripts are to be used on the VoiceReach system, depending on the
circumstance: whether VIHA Nanaimo Environmental Health Office (EHO) has ordered or
requested the notice.
High Turbidity: Boil Water Notice Requested by VIHA Nanaimo Environmental
Health Office (EHO)
SCRIPT: This is the City of Nanaimo Emergency Alert system. Due to high turbidity levels,
by request of VIHA Nanaimo Environmental Health Office (EHO), the City of Nanaimo has
issued a Boil Water Notice for the City of Nanaimo Water System. Please tune to 102.3 FM
for further information and updates, or phone 758-5222.
High Turbidity: Boil Water Notice Ordered by VIHA Nanaimo Environmental Health
Office (EHO)
SCRIPT:
This is the City of Nanaimo Emergency Alert system. Due to high turbidity
levels, by order of VIHA Nanaimo Environmental Health Office (EHO), the City of
Nanaimo has issued a Boil Water Notice for the City of Nanaimo Water System. Please tune
to 102.3 FM for further information and updates, or phone 758-5222.
In the event that the water supply is suspected of being contaminated and unfit for human
consumption, the following script shall be used.
Do Not Consume Water Notice Ordered by VIHA Nanaimo Environmental Health
Office (EHO)
SCRIPT:
This is the City of Nanaimo Emergency Alert system. Due to possible water
contamination, by order of VIHA Nanaimo Environmental Health Office (EHO), the City of
Nanaimo has issued a Do Not Consume Water Notice for the Nanaimo Water System. Please
tune to 102.3 FM for further information and updates or phone 758-5222.
3.7 Communication During Power, TV, Telephone Outages
In the event of a major emergency or prolonged outages of power, TV and/or telephone, the City
may have to use sign boards at key locations around the City, deliver notices door-to-door, and
use radio to provide information to the public on the state of the water delivery system.
November 2008
Communication and Command
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Water System Emergency Response Plan
Section 3
Sign boards are stored at the City Public Works Yard.
If phones/radios are not working, designate meeting locations and times for staff to
communicate.
November 2008
Communication and Command
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Water System Emergency Response Plan
Section 4
4. Emergency Response Plan – Action List
.1
Defining Types of Emergencies .............................................................................................3
.2
Returning to Normal Operations ............................................................................................4
.3
Extended Loss of BC Hydro Power Supply ..........................................................................5
.4
Failure of Programmable Logic Controllers ..........................................................................7
.5
Failure of SCADA or PLC Control System ...........................................................................8
.6
Chlorine Leak - Water Process Centre ...................................................................................9
.7
Failure of the Chlorination System – Water Process Center ................................................11
.8
Chlorine Leak - No. 1 Reservoir...........................................................................................13
.9
Failure of the Chlorination System – No. 1 Reservoir .........................................................15
.10
Primary Supply Main Failure ...............................................................................................16
.11
Bacteriological Contamination of the Distribution System .................................................18
.12
Backflow / Backpressure Incident .......................................................................................20
.13
Reservoir Intrusion ...............................................................................................................22
.14
Building Fire ........................................................................................................................24
.15
Water Source High Turbidity Readings ...............................................................................25
.16
Plane Crash/Automobile Accident in Watershed ................................................................27
.17
Slope / Bank Failure in Watershed ......................................................................................28
.18
Watershed Fire .....................................................................................................................30
.19
Jump Creek Dam Imminent Breach / Dam Breach ..............................................................31
.20
South Fork Dam Imminent Structural Problem / Dam Breach ............................................33
.21
Major Earthquake .................................................................................................................34
.22
Water Contamination at Source and/or Reservoirs ..............................................................36
November 2008
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Water System Emergency Response Plan
Section 4
.23 Secondary Supply Main Failure
−
College Park to Bowen Road .........................................................................................37
−
Bowen Road ...................................................................................................................38
−
Boundary Avenue............................................................................................................39
−
Island Highway and Metral Drive ..................................................................................41
−
Rock City Road ..............................................................................................................42
−
Duke Point ......................................................................................................................43
.24 Pump Station Failure
−
College Park ...................................................................................................................45
−
Rutherford Road .............................................................................................................45
−
Lost Lake ........................................................................................................................45
−
Prince John .....................................................................................................................45
−
Towers Reservoir.............................................................................................................45
−
Wiltshire Pump Station ...................................................................................................45
This Action Plan, in Section 4 of the Water System Emergency Response Plan, is generally based
on information extracted from the Procedures for Alternate Water Supplies prepared by Koers
& Associates Engineering Ltd in September 1990 with updates in January 1996, November 2000
and August 2006.
The Procedures for Alternate Water Supply are included as Appendix G to this document and
provide additional guidance, if required, to technicians or others who are following the procedures
set out in this Action Plan.
November 2008
Action List
Page 2 of 46
Water System Emergency Response Plan
Section 4
4.1 Defining Types of Emergencies
This section defines many of the potential problems that could affect water quality or quantity in
the water supply and distribution system. Each type of event can cause different types of
damage to the systems' components and may require a specific solution. As well, emergencies
usually have a wide range of severity. In this plan, categories of severity are defined as alert
condition, emergency condition, potential disaster condition and disaster condition, each of
which aides in determining appropriate response actions. Examples of each condition are as
follows:
a)
Alert Condition: are considered to be routine emergencies like distribution line breaks,
short power outages, minor mechanical conditions.
b) Emergency Condition: are considered to be more significant emergencies like disruption
of a supply main, complete loss of chlorination equipment system, reservoir carburetion, or
water quality degradation due to things like high turbidity, positive E-coli. These types of
issues usually require a Boil Water Notice or Water Use Restriction Notice to protect the
public.
c)
Potential Disaster Condition: are situations like imminent break of a dam due to excessive
high water level in the reservoir. Appropriate precautions must be taken to mitigate
downstream losses, notify and protect the public.
d) Disaster Condition: are emergency situations like failure of a dam releasing source water,
large forest fire within the watershed, acts of terrorism or hazardous chemical spill in the
watershed. These types of emergencies constitute a catastrophic disaster/major emergency
which requires immediate notification of law enforcement and local emergency management
services. These events often take anywhere from several days to months to resolve before
the system returns to normal operation.
November 2008
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Water System Emergency Response Plan
Section 4
4.2 Returning to Normal Operations
Each type of emergency will require unique remediation measures and returning to normal
operation may be simple or quite complicated depending on the emergency.
a) Plans should be developed for neutralizing, flushing, disinfecting tanks, pump stations,
supply and distribution piping systems.
b) Water system management team should verify water quality sampling results.
c) Water System Manager should meet with Water System Operations Foreman and
communications lead to write notice to customers. Water System Manager directs
communications lead to distribute public notification on water system status.
November 2008
Action List
Page 4 of 46
Water System Emergency Response Plan
Section 4
4.3 Extended Loss of BC Hydro Power Supply
WARNING: KEEP 10 METRES AWAY FROM ANY DOWNED POWER LINES
Type of Emergency:
Alert Condition
The loss of BC Hydro power will automatically activate the standby
power generator / diesel driven pump to provide emergency
power/water. The following table lists the type of generator and fuel
capacity of each unit.
Component
Size of Unit
Water Process Centre diesel generator
75 kW Diesel
No. 1 Reservoir diesel generator
75 kW Diesel
Rutherford pump station diesel pump
2500 usgpm (158 l/s)
Lost Lake pump station diesel pump
2500 usgpm (158 l/s)
College Park pump station diesel pump 1000 usgpm (63 l/s)
Prince John pump station diesel pump
1000 usgpm (63l/s)
Wiltshire pump station diesel pump
Jump Creek dam diesel generator
* Only run in spring and summer to adjust gates
Runtime in
hours with 100%
load and full fuel
tank
Full fuel tank
Capacity
32
34
20
19
24
81
47
33*
500 liters
525 liters
1000 liters
970 liters
320 liters
1000 liters
800 liters
50 liters
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team
2.
Contact BC Hydro and notify them of the situation.
3.
Ensure that the generator/pump is running properly.
4.
Ensure that all other equipment is running properly.
5.
Request status information from BC Hydro.
6.
Re-fuel stand-by generator if the power loss is expected to last for
an extended period.
7.
Check the generator’s/pump’s oil pressure, water temperature and
verify that there are no fuel or coolant leaks.
8.
Once hydropower is regained, take the generator off line and
refuel.
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Page 5 of 46
Water System Emergency Response Plan
Section 4
9.
Additional information on the generator operation can be found in
the station Operation and Maintenance Manual kept on site.
Contacts (See Appendix A):
BC Hydro Service
Chevron Fuels
November 2008
Action List
Page 6 of 46
Water System Emergency Response Plan
Section 4
4.4
Failure of Programmable Logic Controllers
Type of Emergency:
Alert Condition
The Programmable Logic Controllers provide automatic control to the
chlorination and pump stations. The severity and cause of a loss of
either of these systems will need to be assessed in each situation.
Potential Actions:
1.
Contact the Public Works Instrument Technician to assess the
situation.
2.
Switch the system to manual operation.
3.
Ensure that all equipment is running properly.
4.
Ensure chlorine dosage is adequate to provide a minimum of 0.20
mg/L free chlorine throughout the distribution system.
5.
Operate the system manually until PLCs are operational again.
Contacts (See Appendix A):
Instrument Technician
November 2008
Action List
Page 7 of 46
Water System Emergency Response Plan
Section 4
4.5 Failure of SCADA or PLC Control System
Type of Emergency:
Alert Condition
The SCADA system is used to collect data, process alarms and in some
cases provides remote set points to PLC’s that provide local control at
pump stations and water chlorination facilities. The severity and cause
of a loss of either of these systems will need to be assessed in each
situation.
Potential Actions:
1.
Contact the Public Works Instrument Technician to assess the
situation.
2.
Switch the system to manual operation, if necessary.
3.
Ensure that all equipment is running properly.
4.
Ensure chlorine dosage is adequate to provide a minimum of 0.20
mg/L free chlorine throughout the distribution system.
5.
Operate the system manually until the SCADA system is
operational again.
Contacts (See Appendix A):
Instrument Technician
November 2008
Action List
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Water System Emergency Response Plan
Section 4
4.6 Chlorine Leak– Water Process Centre
Refer also to Appendix M – Chlorination Station Safety Procedures
Type of Emergency:
Emergency Condition
Entry to the chlorine tank room automatically turns on the fans which
discharge approximately 3 meters above the roof. In the event that one
of the two chlorine sensors detects a leak, both interior and exterior
warning lights will turn on and a general alarm will be called out. Once
the chlorine sensor is tripped, the discharge fan system will be disabled
to contain any chlorine gas.
Potential Actions:
1.
In the event of a leak an Alarm is received at Public Works and the
Emergency Response team is contacted to respond to the leak.
2.
The Emergency Response team shall respond and follow the City
of Nanaimo Procedures for Emergency Response to Chlorine
Leaks. Refer to City of Nanaimo Safety Manual for the
appropriate Procedures. A copy of the section can be found in SubAppendix G-2.
3.
If the Emergency Response Team has determined that the leak has
escaped from the building they shall notify Public Works
Immediately and initiate emergency meeting with critical
management team.
4.
The Senior Manager on the team shall immediately initiate the
evacuation of the effected area using the local fire department.
5.
After the leak has been repaired or stopped with the emergency
repair kit the Emergency Response Team shall determine the cause
of the leak. If the leak is a result of a faulty cylinder or valve, the
supplier should be notified immediately and asked for directions
for disposal of any remaining gas in cylinder.
6.
If using the SCBA Gear, ensure that the tanks are filled
immediately after the emergency has ended.
7.
Complete post-incident report (See Appendix C).
Emergency Equipment Location:
SCBA - Majority at Public Works while other are at the Fire Hall
Leak Repair Kits - 2 units located in Emergency Response Vehicles.
November 2008
Action List
Page 9 of 46
Water System Emergency Response Plan
Section 4
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Fire Department Nanaimo
Volunteer Fire Department Extension
Chlorep Emergency Response Team
Canexus Chemicals
November 2008
Action List
Page 10 of 46
Water System Emergency Response Plan
Section 4
4.7 Failure of the Chlorination System – Water Process Centre
Refer also to Appendix M – Chlorination Station Safety Procedures
Type of Emergency:
Emergency Condition
There should always be a minimum of 0.2 mg/L of free chlorine
throughout the distribution system. Dosing rates vary due to the flow
rate. The main chlorination station has three lines with three separate
chlorination injectors feeding off two chlorine tanks. A failure can
occur on one or more of the injectors or lines.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
If one system is non-operational then divert water through
adjustment of valves to chlorine operational lines.
3.
Adjust the chlorine dosage accordingly.
4.
If both systems are inoperable then contact VIHA Nanaimo
Environmental Health Office (EHO).
5.
Issue a “Boil Water Notice” (See Appendix B)
6.
If it is determined that the problem will persist longer than several
hours consideration should be given to temporarily start Pryde
Avenue and pump chlorinated water from Number One Reservoir
to North Nanaimo to minimize the effected area. Review options
for flushing un-chlorinated water from the system.
7.
Identify, assess and correct the problem.
8.
Ensure chlorine dosage is adequate to provide a minimum of 0.20
mg/L free chlorine throughout the distribution system.
9.
Take water samples throughout the main distribution system for
bacterial analysis.
10. Once normal equipment operation resumes, contact VIHA
Nanaimo Environmental Health Office (EHO) and remove the
“Boil Water Notice.”
11. Complete post-incident report (See Appendix C).
Contacts:
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
Print Media
November 2008
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Page 11 of 46
Water System Emergency Response Plan
Section 4
Southwest Extension
Snuneymuxw First Nations
November 2008
Action List
Page 12 of 46
Water System Emergency Response Plan
Section 4
4.8 Chlorine Leak – No. 1 Reservoir
Refer also to Appendix M – Chlorination Station Safety Procedures
Type of Emergency:
Emergency Condition
The facility has a chlorine gas scrubber that should have energized to
neutralize the chlorine gas from the storage room. This does not mean
that the room will be safe to enter without taking the appropriate
precautions. In the event that one of the two chlorine sensors detects a
leak, both interior and exterior warning lights will turn on and a
chlorine leak alarm will be transmitted to Public Works. Once the
chlorine sensor is tripped, the building’s regular HVAC fan system will
be disabled and the chlorine gas scrubber will energize to neutralize the
chlorine gas as it leaks from the tank.
Potential Actions:
November 2008
1.
In the event of a chlorine leak an alarm will be generated and sent
to Public Works. The alarm will also initiate the Chlorine gas
scrubber which will remove the chlorine gas as it leaks from the
system.
2.
Upon receiving a Chlorine Leak Alarm at Public Works the
Emergency Chlorine Response Team shall be notified
immediately. The team shall respond to the leak and follow the
Emergency Response Procedures for Chlorine Leaks at No. 1
Reservoir found in the City of Nanaimo Safety manual. A copy of
the appropriate section can be found in Appendix G-2.
3.
If the Emergency Response Team has determined that the leak has
escaped from the building they shall notify Public Works
immediately and initiate emergency meeting with critical
management team.
4.
The Senior Manager on the team shall immediately initiate the
evacuation of the effected area using the local fire department.
5.
If using the SCBA Gear, ensure that the tanks are filled
immediately after the emergency has ended.
6.
An assessment of the chlorine scrubber shall be completed and
appropriate action shall take place to recharge system. If it is
deemed necessary to recharge the unit, staff shall follow
procedures as set out in the City of Nanaimo’s Safety Manual.
Staff may opt to contract out these services to an outside
Environmental Contractor. (See Appendix A)
Action List
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Water System Emergency Response Plan
Section 4
7.
Complete post-incident report (See Appendix C).
Emergency Equipment Location:
SCBA - at Public Works while other are at the Fire Hall
Leak Repair Kits - 2 units located in Emergency Response
Vehicles.
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Fire Department Nanaimo
ChlorepEmergency Response Team
Canexus Chemicals
November 2008
Action List
Page 14 of 46
Water System Emergency Response Plan
Section 4
4.9 Failure of the Chlorination System – No. 1 Reservoir
Refer also to Appendix M – Chlorination Station Safety Procedures
Type of Emergency:
Emergency Condition
There should always be a minimum of 0.2 mg/L free chlorine
throughout the distribution system. Dosing rates vary due to the flow
rate. A failure of the chlorination system can allow bacteria into the
drinking water supply.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Shut down water from reservoir and confirm Pryde Avenue Station
has taken over.
3.
Check chlorine residual in the system to determine the extent of
affected area.
4.
Contact VIHA Nanaimo Environmental Health Office (EHO).
5.
Issue a “Boil Water Notice,” if applicable (See Appendix B).
6.
Review options for flushing un-chlorinated water from the system.
7.
Review options for manual chlorine dosing.
8.
Identify, assess and correct the problem.
9.
Begin chlorinating again at No. 1 Reservoir.
10. Ensure chlorine dosage is adequate to provide a minimum of 0.20
mg/L free chlorine throughout the system.
11. Take water samples throughout the pressure zone 107 system for
bacterial analysis.
12. Once total and fecal coliform results are acceptable to VIHA
Nanaimo Environmental Health Office (EHO), remove the “Boil
Water Notice.”
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
Print Media
Snuneymuxw Fist Nations
November 2008
Action List
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Water System Emergency Response Plan
Section 4
4.10 Primary Supply Main Failure
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be the potential for
loss of water to residents, backflow in the system and flooding of
properties.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
4.
Provide a temporary bypass or alternative supply line, if possible.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
This will only apply if the problem is below the Water Process
Centre.
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
7.
Place sediment control measures in place and de-chlorinate the
water released if below Water Process Centre, if possible.
8.
Contact the Environmental Coordinator and/or Provincial
Emergency Program (PEP) if there will be significant erosion and
sediment effect on streams. Please note that if any chlorinated
water (5 kg +) is released in a fish bearing stream or body of
water PEP must be notified immediately.
9.
Assess downstream damage and prepare a plan and schedule to
remediate the situation.
10. Contact the local media to advise them of the condition and
provide regular updates of the situation.
11. If the failure results in limited water supply, issue a “Mandatory
Water Conservation Notice” (See Appendix B). Note if a Boil
Water Notice is issued after making repairs and disinfection of the
main monitoring of free chorine residuals, turbidity and
bacteriological water quality to facilitate rescinding BWA should
occur.
November 2008
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Water System Emergency Response Plan
Section 4
12. Arrange for a bulk water supplier to haul water in and/or contact
the Fire Department to set up an alternative water intake as
required. See appendix G for locations.
13. Repair the damage and disinfect the affected main section.
14. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
Fire Department
Southwest Extension
Snuneymuxw First Nations
November 2008
Action List
Page 17 of 46
Water System Emergency Response Plan
Section 4
4.11 Bacteriological Contamination of the Distribution System
Type of Emergency:
Emergency Condition
This emergency would arise in the event of a positive bacteria result
from distribution sampling. VIHA Nanaimo Environmental Health
Office (EHO) receives all test results from regular distribution
sampling and will contact the utility in the event of a positive result.
Sub-divisions or construction projects may not know to contact VIHA
Nanaimo Environmental Health Office (EHO) and may contact the
utility directly.
Potential Actions:
A total coliform count over 1 CFU MPN/100ml
An e-coli count over 1 CFU/100ml
A non-coliform background over 200 CFU/100 ml
1.
Contact VIHA Nanaimo Environmental Health Office (EHO).
2.
Flush the distribution system in the area.
3.
Resample the area for bacterial analysis.
4.
Determine why positive count occurred, if possible.
Bacterial contamination still exists:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Contact VIHA Nanaimo Environmental Health Office (EHO).
3.
Issue a “Boil Water Notice” (See Appendix B).
4.
Identify the areas affected and use the Emergency Water
Notification plan and maps to notify all users in the identified area.
5.
Flush the distribution system in the area.
6.
Take water samples for bacterial analysis.
7.
Once results for all three criteria are acceptable to VIHA Nanaimo
Environmental Health Office (EHO), meaning: Once the water
system has returned to normal operations, three consecutive (three
days in a row) bacteria tests must be taken and sent to VIHA
Nanaimo Environmental Health Office (EHO).
Action List
Page 18 of 46
Water System Emergency Response Plan
Section 4
8.
Only then can the “Boil Water Notice” be removed (See Appendix
B).
9.
Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
Print Media
Southwest Extension
Snuneymuxw First Nations
November 2008
Action List
Page 19 of 46
Water System Emergency Response Plan
Section 4
4.12 Backflow / Backpressure Incident
Type of Emergency:
Emergency Condition
Backflow or back-siphonage can cause contamination of the water
distribution system and results when there is a negative pressure in the
system. Negative pressure forces water backwards into the water
system and any contaminant located at the opening to a faucet tap or
hose bib, irrigation system or fire suppression system.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Isolate the source of backflow if possible.
3.
Isolate area downstream of backflow source.
4.
Take samples for chemical and bacterial analysis.
5.
Contact VIHA Nanaimo Environmental Health Office (EHO).
6.
Issue a “Boil Water Notice” if there was the potential for bacterial
contamination (See Appendix B).
7.
Identify the areas affected and use the Emergency Water
Notification plan and maps to notify all users in the identified area.
Maps are located at Nanaimo Public Works Department.
8.
Issue a “Do Not Use the Water” if there was the potential for
chemical contamination (See Appendix B).
9.
Flush the distribution system in the area.
10. Identify, assess and correct the problem.
11. Once the chemical analysis results are acceptable to VIHA
Nanaimo Environmental Health Office (EHO) and there is no
threat to human health, remove the “Water Restriction” (See
Appendix B).
12. Once total and fecal coliform results are acceptable to VIHA
Nanaimo Environmental Health Office (EHO), remove the “Boil
Water Notice” (See Appendix B).
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
November 2008
Action List
Page 20 of 46
Water System Emergency Response Plan
Section 4
Print Media
Snuneymuxw First Nations
November 2008
Action List
Page 21 of 46
Water System Emergency Response Plan
Section 4
4.13 Reservoir Intrusion
Type of Emergency:
Emergency Condition
This condition results in the event of unauthorized access to the site, the
control building or the reservoir. A reservoir intrusion could be the
result of intended or unintended contamination of the storage facility
and distribution system.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Isolate the reservoir by shutting valves.
3.
If criminal activity is suspected, secure the site and protect any
evidence.
4.
Contact the RCMP.
5.
Contact VIHA Nanaimo Environmental Health Office (EHO).
6.
Isolate the down stream system.
7.
Take samples from the reservoir and down stream system. Test
against Guidelines for Canadian Drinking Water Quality.
8.
Issue a “Boil Water Notice” if the reservoir potentially contains
a bacterial contaminant and water has entered the distribution
system (See Appendix B).
9.
Issue a “Do Not Use the Water Notice” if the reservoir
potentially contains a chemical contaminant and water has
entered the distribution system (See Appendix B).
10. Identify the areas affected and use the Emergency Water
Notification plan and maps to notify all users in the identified
area. Maps are located at Nanaimo Public Works Department.
11. Keep reservoir off-line until samples are deemed safe to drink.
12. If samples are not safe to drink, drain and repair any damage to
the reservoir.
13. Rinse and disinfect the reservoir.
14. Once bacterial and chemical results from the distribution system
are acceptable to VIHA Nanaimo Environmental Health Office
(EHO), issue notification that the Drinking Water Problem has
been corrected.
November 2008
Action List
Page 22 of 46
Water System Emergency Response Plan
Section 4
15. Once bacterial and chemical results from the reservoir are
acceptable to VIHA Nanaimo Environmental Health Office
(EHO), put the reservoir back on line.
16. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
RCMP
VIHA Nanaimo Environmental Health Office (EHO)
Print Media
Radio Station
Snuneymuxw First Nations
Cantest Labs (Water Testing)
November 2008
Action List
Page 23 of 46
Water System Emergency Response Plan
Section 4
4.14 Building Fire
DO NOT TRY TO PUT OUT A FIRE:
ƒ
If the fire is spreading beyond the spot where it started
ƒ
If there is a potential for explosion.
ƒ
If the fire can block your escape
ƒ
If the extinguisher proves to be ineffective
Type of Emergency:
Emergency Condition
This emergency would arise in the event of an internal or external fire
in any of the chlorination stations, pump stations or utility buildings.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department.
3.
Advise them chlorine or other chemicals are stored at the location.
4.
Ensure that all personnel are clear of the building and area.
5.
Complete post-incident report.
6.
If loss of chlorine, follow policies #4.5 and #4.7.
Contacts (See Appendix A):
Fire Department
November 2008
Action List
Page 24 of 46
Water System Emergency Response Plan
Section 4
4.15 Water Source High Turbidity Readings
Type of Emergency:
Public Health - Emergency Condition
This event could be the result of a number of situations such as high
water flows into South Fork Reservoir caused by an intense and
prolonged storm in the watershed. Each situation will vary in severity
and will need to be dealt with appropriately. The potential actions are
listed in order of response from least severe to most severe. The
Canadian Drinking Water Guidelines require turbidity levels less than 1
NTU in the distribution system. Average turbidity in South Fork is
normally 0.5 NTU.
Potential Actions:
1.
If weather indicates high likelihood of extreme rain or a rain on
snow event, and potential to cause high turbidity; initiate
mitigation measures by feeding entire City water demands through
Reservoir No. 1 (See plan in Appendix L).
2.
Inform VIHA Nanaimo Environmental Health Office (EHO),
business phone 740-6988 immediately that Reservoir No. 1 is
active in hopes of mitigating a turbidity event. During non-regular
working hours, call Medical Health Officer on call at 1-800-2046166.
3.
Monitor on-line turbidity.
4.
If turbidity exceeds 5 NTU, notify VIHA Nanaimo Environmental
Health Office (EHO) and begin discussions regarding remediation
actions.
5.
Increase chlorine dosage to ensure a minimum of 0.20 mg/L free
chlorine throughout the distribution system, while maintaining a
total chlorine below 4.0 mg/L.
6.
Initiate an emergency meeting with the critical management team.
7.
Initiate the Emergency Alert System (VoiceReach) with
appropriate SCRIPT depending whether ordered or requested by
VIHA Nanaimo Environmental Health Office (EHO).
8.
As directed by VIHA Nanaimo Environmental Health Office
(EHO), issue a "Boil Water Notice" (See Appendix B).
9.
Safely take water samples from South Fork Lake for analysis.
10. Complete post-incident report (See Appendix C).
November 2008
Action List
Page 25 of 46
Water System Emergency Response Plan
Section 4
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
Print Media
Southwest Extension
Snuneymuxw First Nations
November 2008
Action List
Page 26 of 46
Water System Emergency Response Plan
Section 4
4.16 Plane Crash/Automobile Accident in Watershed
Type of Emergency:
Emergency Condition
Plane crash or marine/automobile accident in the watershed could result
in the contamination of the water supply from the release of
hydrocarbons or other material in transport. The travel time from the
north end of Jump Lake to the intake can range from one day to two
days depending on the inflow/outflow rates.
Potential Actions:
1.
Initiate emergency meeting with critical management team and
notify RCMP and Transport Canada.
2.
Request regular status information on the situation and possible
water contamination. Take water samples between crash site and
intake to confirm contaminant travel and dispersion.
If the source water is at risk of contamination, isolate the water
intake at South Fork Dam and immediately activate Reservoir No.
1 as the main storage supply. Contact the Fire Department to set
up alternate water intakes using Nanaimo River Emergency Water
Intake systems (See Appendix K for locations).
3.
Contact VIHA Nanaimo Environmental Health Office (EHO) to
advise of situation and determine required actions and public
notification processes to be implemented (Refer to VoiceReach
broadcasting and Appendix B - Water Notices).
4.
Contact Ministry of
contamination clean-up.
5.
Arrange for bulk water suppliers to haul water if minimum water
quality standards cannot be maintained.
6.
Complete post-incident report (See Appendix C).
Environment
for
assistance
with
Contacts (See Appendix A):
RCMP
Fire Department
VIHA Nanaimo Environmental Health Office (EHO)
Ministry of Environment
Transport Safety Canada
Radio Station
Print Media
Snuneymuxw First Nations
November 2008
Action List
Page 27 of 46
Water System Emergency Response Plan
Section 4
4.17 Slope / Bank Failure in Watershed
Type of Emergency:
Emergency Condition
Slope or bank failure in the watershed could result in increased
turbidity levels and possible bacterial contamination. The travel time
from the west end of Jump Creek Lake to the intake can range from one
day to two days depending on the inflow/outflow rates.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department, the Ministry of Forests and the
Ministry of Environment.
3.
Request regular status information on the situation and possible
water contamination.
4.
Sample water at the down stream end of the slope failure and at the
intake at South Forks Dam.
5.
Determine the travel time to the intake.
6.
Take water samples between slope failure and intake to confirm
contaminant travel and dispersion.
7.
Contact VIHA Nanaimo Environmental Health Office (EHO). See
procedure for high turbidity concentrations described in Section
4.13.
8.
Issue a “Boil Water Notice” (See Appendix B).
9.
Issue a “Water Use Restriction” (See Appendix B).
10. Arrange for a bulk water supplier to haul water in.
11. Contact the Fire Department to set up an alternative water intake.
See Appendix “K” for locations.
12. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Fire Department
Ministry of Forests
VIHA Nanaimo Environmental Health Office (EHO)
Radio Station
Print Media
Ministry of Environment
November 2008
Action List
Page 28 of 46
Water System Emergency Response Plan
Section 4
Island Timberlands
Timberwest
Snuneymux First Nations
November 2008
Action List
Page 29 of 46
Water System Emergency Response Plan
Section 4
4.18 Watershed Fire
Type of Emergency:
Emergency Condition
This event will vary in severity depending on the location and size of
the fire. Access roads for fire fighting, chemical fire retardants, debris
and increased run-off entering the water can all effect water quality.
Long-term effects may include excessive algal growth and increased
turbidity.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department, Ministry of Forests and the Ministry
of Environment (See Appendix E for MSDS; FireTrol).
3.
Request regular status information on the situation and possible
water contamination.
4.
Sample water at Jump Lake Lake, South Forks and downstream of
the fire area.
5.
Determine the travel time to, and/or the impact on the intake.
6.
Take water samples between fire area and intake to confirm
contaminant travel and dispersion.
7.
Contact VIHA Nanaimo Environmental Health Office (EHO).
8.
Issue a “Boil Water Notice” (See Appendix B).
9.
Shut off the flow to the distribution system.
10. Issue a “Water Use Notice” (See Appendix B).
11. Arrange for a bulk water supplier to haul water in.
12. Contact the Fire Department to set up an alternative water intake if
possible.
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Fire Department
Ministry of Forests
VIHA Nanaimo Environmental Health Office (EHO)
Bulk Water Supplier
Island Timberlands
Timberwest
Snuneymuxw First Nations
November 2008
Action List
Page 30 of 46
Water System Emergency Response Plan
Section 4
4.19 Jump Creek Dam Imminent Breach/Dam Breach
Type of Emergency:
Potential Disaster Condition
Jump Creek Dam has been upgraded to meet current regulations for
peak maximum flood and Earthquake. If for some reason it becomes
apparent that there is an imminent Dam Breach appropriate precautions
must be taken to mitigate downstream loses. Previous studies have
determined that a resulting flood from a Dam breach could reach the
Island highway in approximately 20 minutes.
Potential Actions:
Type of Emergency:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department and Emergency Response Center.
3.
Refer to Section 4 of the “Operation and Maintenance Manual for
Jump Creek Dam” and follow instructions.
4.
Initiate evacuation and other preventive measures as indicated in
plan.
5.
Contact VIHA Nanaimo Environmental Health Office (EHO) to
inform of situation. As requested or ordered by VIHA Nanaimo
Environmental Health Office (EHO), activate the appropriate
Emergency Alert System (VoiceReach) with appropriate SCRIPT.
6.
Arrange for a bulk water supplier to haul water in.
7.
Contact the Fire Department to set up an alternative water intake if
required.
8.
Complete post-incident report (See Appendix C).
Disaster Condition
Should Jump Creek Dam breach, the supply of water to the City of
Nanaimo would be severely compromised. It is likely that South Fork
Dam would fill with Mud and Debris that would result in a total loss of
supply.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department and Emergency Response Centre.
Action List
Page 31 of 46
Water System Emergency Response Plan
Section 4
3.
Refer to Section 4 of the “Operation and Maintenance Manual for
Jump Creek Dam” and follow instructions.
4.
Contact VIHA Nanaimo Environmental Health Office (EHO) to
inform of situation. As requested or ordered by VIHA Nanaimo
Environmental Health Office (EHO), activate the appropriate
Emergency Alert System (VoiceReach) with appropriate SCRIPT.
5.
Set up Portable Emergency Water Treatment Plant at one of the
City Lakes and set up Emergency Bulk Delivery System using
Portable Emergency Water Tanks located at Public Works.
6.
Set up Water Distribution points and issue notice as necessary.
7.
Contact the Fire Department to set up an alternative non- potable
water intake if possible to maintain existing delivery system for
Fire Fighting purposes. See Appendix “G” for locations.
8.
Initiate Engineering/Construction work required to correct
situation.
9.
Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Emergency Operations Center
Fire Department
Bulk Water Suppliers
Southwest Extension
Snuneymuxw First Nations
Regional District of Nanaimo
VIHA Nanaimo Environmental Health Office (EHO)
Ministry of Environment - Dam Safety (Victoria)
November 2008
Action List
Page 32 of 46
Water System Emergency Response Plan
Section 4
4.20 South Fork Dam Imminent Structural Problem/Dam Breach
Type of Emergency:
Disaster Condition
Should a condition arise that indicates the dam has a structural defect or
a dam breach is imminent
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department and Emergency Response Centre.
3.
Refer to Section 4 of the “Operation and Maintenance Manual for
Jump Creek Dam” and follow instructions.
4.
Contact VIHA Nanaimo Environmental Health Office (EHO) to
inform of situation. As requested or ordered by VIHA Nanaimo
Environmental Health Office (EHO), activate the appropriate
Emergency Alert System (VoiceReach) with appropriate SCRIPT.
5.
Set up Portable Emergency Water Treatment Plant at one of the
City Lakes and set up Emergency Bulk Delivery System using
Portable Emergency Water Tanks located at Public Works.
6.
Set up Water Distribution points and issue notice as necessary.
7.
Contact the Fire Department to set up an alternative non- potable
water intake if possible to maintain existing delivery system for
Fire Fighting purposes. See Appendix “G” for locations.
8.
Initiate Engineering/Construction work required to correct
situation.
9.
Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Emergency Operations Center
Fire Department
Media
Bulk Water Supplier
Southwest Extension
Regional District of Nanaimo
Snuneymuxw First Nations
VIHA Nanaimo Environmental Health Office (EHO)
Ministry of Environment - Dam Safety (Victoria)
November 2008
Action List
Page 33 of 46
Water System Emergency Response Plan
Section 4
4.21 Major Earthquake
Type of Emergency:
Disaster Condition
In the event of an earthquake, damage to the chlorination stations,
storage reservoirs, pump stations, penstocks and water mains are
possible. Because many other agencies will be involved it will be
essential to coordinate all efforts to most effectively deal with the
situation.
Potential Actions:
1.
Initiate emergency meeting with critical management team.
2.
Contact the Fire Department and Emergency Operations Centre.
3.
If the system cannot supply adequate flows, issue a “Water Use
Restriction” (See Appendix B).
4.
If there was potential for backflow into the system, issue a “Boil
Water Notice” (See Appendix B).
5.
If areas are out of water contact Department and set up Pumping
Plan from Emergency Water Intakes as required. Set up
Emergency Water Treatment Plant from best available Lake and
Water Delivery Plan to effected areas. Use outside delivery
equipment / water supply venders as required from master contact
list in appendix “A”.
6.
Check the flows at the Water Process Centre and compare with
historical values to determine if there is major water main damage.
7.
Visit all facilities including:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
November 2008
Water Process Centre
Jump Creek Dam and South Fork Dam
No. 1 Reservoir and Chlorination Station
Upper Chase Dam
College Park Reservoir and Pump Station
Towers Reservoir and Pump Station
Pryde Avenue Pump Station
Rutherford Pump Station and Reservoir
Lost Lake Reservoir and Pump Station
Duke Point Reservoir
PRV’s
Supply Mains and Fixtures
Action List
Page 34 of 46
Water System Emergency Response Plan
Section 4
8.
9.
Conduct a thorough inspection which includes:
9
An interior review of all facilities looking for spraying water
indicating damaged pipes, cracked concrete floors, structural
damage to the block walls and roof.
9
A review of all equipment and instrumentation to evaluate the
status of the system.
9
A walk around the exterior of all buildings looking for
structural damage.
Assess the extent of each damaged section and record findings.
10. Make a damage assessment, prepare a plan to begin repairs and
identify a schedule to resumption of normal operation.
11. Once adequate flow is restored, remove the “Water Use
Restriction” (See Appendix B).
12. Once total and fecal coliform results are acceptable to VIHA
Nanaimo Environmental Health Office (EHO), remove the “Boil
Water Notice” (See Appendix B).
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Fire Department
VIHA Nanaimo Environmental Health Office (EHO)
Southwest Extension
Snuneymuxw First Nations
Regional District of Nanaimo
November 2008
Action List
Page 35 of 46
Water System Emergency Response Plan
Section 4
4.22 Water Contamination at Source and/or Reservoirs
Type of Emergency:
Emergency Condition
In the event of contamination of a source and/or the balancing
reservoirs, there is potential health hazard to downstream consumers.
Potential Actions:
1.
Refer to the following Flow Sheets “Remedial Action Flow Sheet
– Water Contamination at Source and/or Balancing Reservoirs”
(See Appendix N).
2.
Initiate emergency meeting with critical management team.
3.
Isolate the source and/or reservoir presumed or known to be
contaminated.
4.
Contact VIHA Nanaimo Environmental Health Office (EHO) to
inform of situation. As requested or ordered by VIHA Nanaimo
Environmental Health Office (EHO), activate the appropriate
Emergency Alert System (VoiceReach) with appropriate SCRIPT.
5.
Take samples of contaminated water and submit to laboratory.
6.
Also take water samples from downstream reservoirs and submit to
laboratory.
7.
Issue appropriate Drinking Water Notice (See Appendix B).
8.
If a source is contaminated, flush the lake and the downstream
piping, re-sampling at intervals until the water is safe.
9.
If reservoir is contaminated, drain the reservoir, clean, disinfect,
refill and disinfect again. Re-sample the water. Flush and
disinfect any affected downstream piping.
10. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
Emergency Operations Centre
Ministry of Health
Ministry of Environment
Media
Southwest Extension
Snuneymuxw First Nations
November 2008
Action List
Page 36 of 46
Water System Emergency Response Plan
Section 4
4.23 Secondary Supply Main Failure
a) College Park to Bowen Road (900mm Steel Pipe)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be the potential for
loss of water to residents, backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
4.
Provide a temporary bypass or alternative supply line, if possible
using Pryde Avenue Pump Station to provide alternate supply to
North Nanaimo. Issue a “Water Use Notice” (See Appendix B).
Monitor system pressures and verify Notice is working. Take
necessary action to reinforce notice if required.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations. Note: Special
steel adapters manufactured and located at public works stores to
connect this pipe to a steel pipe repair section. A selection of steel
pipe is located at No. 1 Reservoir. The length of pipe would need
to be determined a piece cut and coated to suit the repair.
7.
Place sediment control measures in place and de-chlorinate the
water released.
8.
Contact the Environmental Coordinator and/or Provincial
Emergency Program if there will be significant erosion and
sediment effect on streams. Please note that if any chlorinated
water (5 kg +) is released in a fish bearing stream or body of
water PEP must be notified immediately.
Action List
Page 37 of 46
Water System Emergency Response Plan
Section 4
9.
Assess downstream damage and prepare a plan and schedule to
remediate the situation.
10. Contact the local media to advise them of the condition and
provide regular updates of the situation.
11. Repair the damage and disinfect the affected main section.
12. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
b) Bowen Road (762mm Concrete Cylinder Pipe Hyprescon)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be a loss of water
to residents, a possibility of backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
4.
Provide a temporary bypass or alternative supply line, if possible
using Pryde Avenue Pump Station to provide alternate supply to
North Nanaimo. Issue a “Water Use Notice” (See Appendix B).
Monitor system pressures and verify Notice is working. Take
necessary action to reinforce notice if required.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
7.
Identify areas that will be out of water and make arrangements for
temporary bypass supply of water. This may be possible with City
emergency supply material such as the use of 3”yellowmine
Action List
Page 38 of 46
Water System Emergency Response Plan
Section 4
emergency supply line overland or the Emergency Water
Treatment and Pump Station Trailer or Emergency Water Tanks
connected to local effected areas or delivered to key distribution
points. Notify effected areas door to door and with media.
8.
Place sediment control measures in place and de-chlorinate the
water released.
9.
Contact the Environmental Coordinator and/or Provincial
Emergency Program if there will be significant erosion and
sediment effect on streams. Please note that if any chlorinated
water (5 kg +) is released in a fish bearing stream or body of
water PEP must be notified immediately.
10. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
11. Contact the local media to advise them of the condition and
provide regular updates of the situation.
12. Repair the damage and disinfect the affected main section.
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
c) Boundary Avenue ( 400mm AC PIPE)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be a loss of water
to residents, a possibility of backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
Action List
Page 39 of 46
Water System Emergency Response Plan
Section 4
4.
Provide a temporary bypass or alternative supply lines, where
possible. Issue a “Water Use Notice” (See Appendix B). Monitor
system pressures and verify Notice is working. Take necessary
action to reinforce notice if required.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
7.
Identify areas that will be out of water and make arrangements for
temporary bypass supply of water. This may be possible with City
emergency supply material such as the use of 3”yellowmine
emergency supply line overland or the Emergency Water
Treatment and Pump Station Trailer or Emergency Water Tanks
connected to local effected areas or delivered to key distribution
points. Notify effected areas door to door and with media.
8.
Place sediment control measures in place and de-chlorinate the
water released.
9.
Contact the Environmental Coordinator and/or Provincial
Emergency Program if there will be significant erosion and
sediment effect on streams. Please note that if any chlorinated
water (5 kg +) is released in a fish bearing stream or body of
water PEP must be notified immediately.
10. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
11. Contact the local media to advise them of the condition and
provide regular updates of the situation.
12. Repair the damage and disinfect the affected main section.
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
November 2008
Action List
Page 40 of 46
Water System Emergency Response Plan
Section 4
d) Island Highway and Metral Drive ( 450mm and 400mm Steel Pipe)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be a loss of water
to residents, a possibility of backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
4.
Provide a temporary bypass or alternative supply lines, were
possible. Issue a “Water Use Notice” (See Appendix B). Monitor
system pressures and verify Notice is working. Take necessary
action to reinforce notice if required.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
7.
Identify areas that will be out of water and make arrangements for
temporary bypass supply of water. This may be possible with City
emergency supply material such as the use of 3”yellowmine
emergency supply line overland or the Emergency Water
Treatment and Pump Station Trailer or Emergency Water Tanks
connected to local effected areas or delivered to key distribution
points. Notify effected areas door to door and with media.
8.
Place sediment control measures in place and de-chlorinate the
water released.
9.
Contact the Environmental Coordinator and/or PEP if there will be
significant erosion and sediment effect on streams. Please note that
if any chlorinated water (5 kg +) is released in a fish bearing
stream or body of water PEP must be notified immediately.
Action List
Page 41 of 46
Water System Emergency Response Plan
Section 4
10. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
11. Contact the local media to advise them of the condition and
provide regular updates of the situation.
12. Repair the damage and disinfect the affected main section.
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
e) Rock City Road (600mm DI Pipe)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be a loss of water
to residents, a possibility of backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of effected area for Fire
Prevention.
4.
Provide a temporary bypass or alternative supply lines, were
possible. Issue a “Water Use Notice” (See Appendix B). Monitor
system pressures and verify Notice is working. Take necessary
action to reinforce notice if required. Initiate and or check reverse
flow from Lost Lake Reservoir as required to meet existing
condition.
5.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
6.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
Action List
Page 42 of 46
Water System Emergency Response Plan
Section 4
7.
Identify areas that will be out of water and make arrangements for
temporary bypass supply of water. This may be possible with City
emergency supply material such as the use of 3”yellowmine
emergency supply line overland or the Emergency Water
Treatment and Pump Station Trailer or Emergency Water Tanks
connected to local effected areas or delivered to key distribution
points. Notify effected areas door to door and with media.
8.
Place sediment control measures in place and de-chlorinate the
water released.
9.
Contact the Environmental Coordinator and/or PEP if there will be
significant erosion and sediment effect on streams. Please note that
if any chlorinated water (5 kg +) is released in a fish bearing
stream or body of water PEP must be notified immediately.
10. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
11. Contact the local media to advise them of the condition and
provide regular updates of the situation.
12. Repair the damage and disinfect the affected main section.
13. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
f) Duke Point (762mm Steel Pipe)
Type of Emergency:
Emergency Condition
In the event of a transmission main failure there will be a loss of water
to residents, a possibility of backflow in the system and flooding of
properties.
Potential Actions:
November 2008
1.
Initiate emergency meeting with critical management team.
2.
Stop the flow of water by closing valves on all sides of the
problem area.
3.
Make the site safe. Notify Fire Department of affected area for
Fire Prevention.
Action List
Page 43 of 46
Water System Emergency Response Plan
Section 4
4.
Provide a temporary bypass or alternative supply lines, where
possible. Issue a “Water Use Notice” (See Appendix B). A bypass
may come from local distribution mains using 3”emergency
yellowmine pipe connected to a drain or air valve connection on
the supply main. An Alternate Supply can be made from Pope and
Talbot or the Nanaimo River using the City portable treatment
plant and pump station.
5.
Monitor system pressures and verify Notice is working. Take
necessary action to reinforce notice if required.
6.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
7.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
8.
Identify areas that will be out of water and make arrangements for
temporary bypass supply of water. This may be possible with CON
emergency supply material such as the use of 3”yellowmine
emergency supply line overland or the Emergency Water
Treatment and Pump Station Trailer or Emergency Water Tanks
connected to local effected areas or delivered to key distribution
points. Notify effected areas door to door and with media.
9.
Place sediment control measures in place and de-chlorinate the
water released.
10. Contact the Environmental Coordinator and/or PEP if there will be
significant erosion and sediment effect on streams. Please note that
if any chlorinated water (5 kg +) is released in a fish bearing
stream or body of water PEP must be notified immediately.
11. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
12. Contact the local media to advise them of the condition and
provide regular updates of the situation.
13. Repair the damage and disinfect the affected main section.
14. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
November 2008
Action List
Page 44 of 46
Water System Emergency Response Plan
Section 4
4.24 Pump Station Failure
Type of Emergency:
Emergency Condition
In the event of a pump failure at any of the primary pump stations a
backup diesel pump will start automatically and maintain adequate
flows to the area served. The exceptions are Towers and Labieux Road
pump stations that do not require a diesel pump backup, but may not be
able to provide optimum pressure.
Type of Back up
•
College Park ................................................................. Diesel Pump
•
Rutherford Road .......................................................... Diesel Pump
•
Lost Lake ..................................................................... Diesel Pump
•
Prince John ................................................................... Diesel Pump
•
Towers Reservoir ...................................................... Gravity Supply
•
Wiltshire Pump Station ................................................. Diesel Pump
1.
In the event of a loss of power or electric pump malfunction a
diesel pump will start to maintain system. A pump failure alarm or
pump failure alarm will be generated.
2.
The appropriate operations staff shall be called to the station and
make an assessment of the situation. If the stations back up
systems are handling the situation satisfactorily the operator is not
required to take any immediate action. The operator or his
immediate supervisor shall determine how long the situation will
last, and take appropriate action to maintain adequate fuel supply
to pump or generator. If the pump station has a failure that takes it
completely offline the operator shall contact the next available
supervisor. The supervisor contacted shall initiate an emergency
meeting with critical management team.
3.
The operator shall take appropriate action to deal with any issues
for leaking water or closing valves required to deal with the
existing problem.
4.
Make the site safe. Notify Fire Department of affected area for Fire
Prevention.
Potential Actions:
November 2008
Action List
Page 45 of 46
Water System Emergency Response Plan
Section 4
5.
Provide a temporary bypass or alternative supply lines, where
possible. Issue a “Water Use Notice” (See Appendix B). A bypass
may come from local distribution mains using 3”emergency
yellowmine pipe connected to a drain or air valve connection or
hydrant in conjunction with portable PRV or using the City
portable treatment plant and pump station.
6.
Monitor system pressures and verify Notice is working. Take
necessary action to reinforce notice if required.
7.
If there is the potential that the system has been contaminated,
contact VIHA Nanaimo Environmental Health Office (EHO) and
determine if a “Boil Water Notice” is required (See Appendix B).
8.
Make a damage assessment and prepare a plan to begin repairs and
identify a schedule to resume normal operations.
9.
If some areas cannot be fed from a bypass or alternate feed make
arrangements to deliver water using tankers to key distribution
points. Notify effected areas door to door and with media.
10. Place sediment control measures in place and de-chlorinate the
water released.
11. Contact the Environmental Coordinator and/or PEP if there will be
significant erosion and sediment effect on streams. Please note that
if any chlorinated water (5 kg +) is released in a fish bearing
stream or body of water PEP must be notified immediately.
12. Assess downstream damage and prepare a plan and schedule to
remediate the situation.
13. Contact the local media to advise them of the condition and
provide regular updates of the situation.
14. Repair the damage and disinfect the affected main section.
15. Complete post-incident report (See Appendix C).
Contacts (See Appendix A):
VIHA Nanaimo Environmental Health Office (EHO)
Media
November 2008
Action List
Page 46 of 46