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ODOUR MANAGEMENT PLAN
ORGAWORLD CANADA LTD.
LONDON FACILITY
LONDON, ON
ODOUR MANAGEMENT PLAN
RWDI # 1801815
March 28, 2018
ODOUR MANAGEMENT PLAN (OMP)
ORGAWORLD CANADA LTD. LONDON FACILITY
March 28, 2018
rwdi.com
TABLE OF CONTENTS
INTRODUCTION ..................................................... 1
1.1 Facility Description ................................................... 1
1.2 Objectives ............................................................. 3
1.3 OMP Structure .......................................................... 3
ROLES AND RESPONSIBILITIES & TRAINING ............................ 3
2.1 Management Responsibilities and Review ................................. 3
2.2 Training and Competence ................................................ 4
DESCRIPTION OF SITE OPERATIONS AND PROCESS ....................... 4
3.1 Overview ............................................................... 4
3.2 Description of Site Activities ......................................... 4
3.3 London Facility Process Description .................................... 5
3.4 London Odour Abatement System .......................................... 6
3.5 Potential Impacts ...................................................... 9
ODOUR GENERATION AND CONTROL MEASURES ............................ 9
4.1 Odour Control During Normal Operations ................................. 9
4.2 Controls on incoming waste ............................................ 10
4.3 Controls of Out-going Waste ........................................... 11
MEASUREMENT OF ODOUR ............................................ 11
ROUTINE MAINTENANCE AND INSPECTION .............................. 11
6.1 General ............................................................... 11
ODOUR MANAGEMENT PLAN (OMP)
ORGAWORLD CANADA LTD. LONDON FACILITY
March 28, 2018
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6.2 Building Containment .................................................. 12
6.3 Maintenance of other plant and equipment. ............................. 12
6.4 Monitoring ............................................................ 12
6.5 Regular Olfactory Monitoring .......................................... 13
6.6 Monitoring Impacts .................................................... 14
6.7 Record Keeping and Reporting .......................................... 14
6.8 Actions in the Event of Abnormal Emissions ............................ 14
6.9 Contingencies ......................................................... 15
COMPLAINT HANDLING AND COMMUNICATIONS ........................... 15
7.1 Contact details for complaints. ....................................... 15
7.2 London Complaints Investigation Procedure. ............................ 16
7.3 Further Investigation of Complaints ................................... 17
LIST OF APPENDICES
ODOUR MANAGEMENT PLAN (OMP)
ORGAWORLD CANADA LTD. LONDON FACILITY
March 28, 2018
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VERSION HISTORY
Index Date Pages Author
1 March 26, 2018 All Brad Bergeron (RWDI)
2 March 28, 2018 All David Veinot (Orgaworld)
ODOUR MANAGEMENT PLAN (OMP)
ORGAWORLD CANADA LTD. LONDON FACILITY
March 28, 2018
Page 1
INTRODUCTION
RWDI AIR Inc. (RWDI) was retained by Orgaworld Canada Ltd. (Orgaworld) to complete an Odour Management Plan
(OMP) for the London facility. This Odour Management Plan documents the methods by which the Orgaworld
London Facility will manage, monitor, reduce and prevent potentially odorous emissions, from operations at the
Orgaworld London Facility. In preparation of this OMP, RWDI obtained copies of the following reports:
Emission Summary and Dispersion Modelling Report, Orgaworld Canada Ltd. London dated July 2011
prepared by GHD.
Source Testing Report, Orgaworld Canada Ltd. London, dated September 21, 2012 prepared by Conestoga-
Rovers & Associates (now referred to as GHD).
Final - Interim Report No. 1 - Results of a Voluntary Odour Sampling Program, Orgaworld Canada Ltd.
London, dated December 7, 2017, prepared by Pinchin Limited.
1.1 Facility Description
The facility is owned and operated by Orgaworld Canada Ltd. and operates under the same name. The facility is
located at 4675 Wellington Road in London, Ontario N6E 3W7. The facility operates under Amended Certificate of
Approval (ECA) 2450-8KVG84 dated October 24, 2011 (Appendix A). Within the ECA, there are numerous conditions
provided to control odours at the site, the following is a bulleted list of the conditions:
Condition 2: The Company shall ensure that the maximum 10-minute average odour concentration of odour at
the most impacted Sensitive Receptor, computed in accordance with Schedule B, resulting from
the operation of the Facility, shall not be greater than 1.0 odour units.
Condition 3: The Company shall monitor and record the physical parameters of the ammonia scrubber, the
Bioscrubber and the Biofilters, through a combination of sensors, meters, physical probes or
equivalent means, at frequencies either as recommended by the Equipment suppliers or as
determined by operational needs. (refer to Section 5 for Monitoring Requirements)
Condition 5: The Company shall ensure that the Facility is properly operating and maintained at all times. The
Company shall:
(1) Review and update, as necessary, within three months after the date of this Certificate, its
current Manual which outlines the procedures of the Facility that relate to odour and noise, as
well as the operating procedures and a maintenance program for the Equipment with in
accordance with good engineering practices, to ensure that the Manual includes the following:
a) Routine and emergency operating and maintenance procedures recommended by the
Equipment suppliers including operating procedures for the Facility that relate to odour
and noise during Equipment malfunction, power outages, by-passes and other emergency
or abnormal operating conditions and procedures for notifying the Ministry of such
events.;
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b) Procedures to monitor and record the temperature and relative humidity of the air exiting
the composting tunnels;
c) Procedures to monitor and record the quantity of ventilation air that bypassed the
composting and the quantity of air that are collected by the composting tunnels to the
flow splitting box;
d) Procedures to monitor and record the quantity of air flowing through the two (2)
ammonia scrubbers;
e) Procedures to monitor and record the concentrations of ammonia in the air entering and
leaving the ammonia scrubbers;
f) Procedures to monitor and quantify the sulphuric acid solution in the storage tank of the
ammonia scrubbers;
g) Procedures to monitor and record the results of the monitoring and the frequencies of
monitoring of the parameters of the ammonia scrubbers, Bioscrubbers, and Biofilter in
Condition 3 above;
h) Procedures to monitor and record the results of monitoring the quality of water in the
water sumps of the Bioscrubber, and the criteria of replacement of water in the water
sump of the Bioscrubber; of the booster fan in the period of November 1 to March 31 of
the next year, to drawn ambient air into the Facility Stack;
i) A Fugitive Control Plan, identifying odour sources from the operation of the Facility, and
outlining the physical and procedural controls such as policies and standards required in
order to prevent or mitigate fugitive odour emissions from the operation of the Facility;
Condition 6: The Company shall keep all doors in the enclosed building of the Facility fully closed at all times
except when used for necessary personnel or vehicle entrance and exit.
Condition 7: The Company shall ensure that the enclosed building and the Compost Curing Building of the
Facility are operated under negative pressure at all times, when there are unprocessed or partially
processed materials inside the building or Compost Curing Building.
Condition 8 to 15: Source Testing
Condition 16: Record Retention
Schedule “B” Procedure to calculate and record the 10-minute average concentration of odour at the Points of
Impingement and at the most impacted Sensitive Receptor
The London composting facility is able to receive and process up to1,000 tonnes per day and 150,000 tonnes per
year of organic materials including source separated organics (SSO) and leaf & yard waste employing the aerobic
tunnel composting process followed by screening and curing to finished compost/NASM. Much of this waste is
collected in plastic bags.
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The separated organic waste is processed in the London tunnel composting plant. Once the plastic bags arrive at
our site they are opened using a shredder/bag ripper. The organic waste is then mixed with an inoculum. This mix is
then composted in special composting tunnels over the course of approximately 14 days. .
The plant is kept under negative air pressure to limit the emission of odours and particles. We also pass air through
dual ammonia scrubbers, an air cooling heat exchanger system, a bio-scrubber and bio-filters so that odour
components are removed before the air is released into the atmosphere via a special stack with ambient air
dilution.
1.2 Objectives
The Orgaworld London Facility OMP has been designed with the following objective clearly in mind:
The facility must meet the odour performance standard of not exceeding 1.0 ou/m3 based on a 10-minute
average, more than 0.5% of the time measured using AERMOD Dispersion Modelling at the Critical
Receptor Points
This OMP considers sources, releases and impacts of odour emissions arising from the activities at the site and
identifies effective measures for odour management.
1.3 OMP Structure
This Odour OMP is structured as follows:
Section 1: Introduction;
Section 2: Summary of site operations;
Section 3: Identification of odour generation sources, releases points and controls during normal
operations;
Section 4: Routine maintenance.
Section 5: Routine monitoring methods and process set points to minimize odour generation, emission
points, dispersion and impacts;
Section 6: Identified contingency measures; and
Section 7: Complaint handling and communication.
ROLES AND RESPONSIBILITIES & TRAINING
2.1 Management Responsibilities and Review
It is the responsibility of the Site’s Operations Manager to ensure that the requirements of this document are
adhered to. If the Operations Manager is unavailable or non-contactable, the contingency management staff to be
contacted are as follows:
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Process Engineer
Maintenance Supervisor
This OMP is intended to be a live document which serves as a reference during daily operations, as such it will be
reviewed and updated should the following occur:
Significant changes are made to the plant or operational practices;
Substantiated complaints are received, which on subsequent investigation result in the identification of
further control measures or remedial action.
2.2 Training and Competence
The Orgaworld London operation follows a well-defined and documented management system. The
management system covers training, awareness, and competence for all staff. All new employees receive
induction and awareness training and job specific training as required.
All staff at the Orgaworld London facility will be made fully aware of the need to be constantly vigilant regarding
site odour control and the importance of reporting of issues to site management. The Operations Manager and
Process Engineer are responsible for:
Training the staff on the aspects of this odour management plan as it relates to their job;
Ensuring staff are trained in the key process areas with regards to their significance for odour
generation;
Ensuring all training events are documented.
DESCRIPTION OF SITE OPERATIONS AND PROCESS
3.1 Overview
The London facility consists of an aerobic in-vessel composting waste treatment process. Designed and operated to
treat source separated organics and leaf & yard waste from various municipalities . The facility has the capacity to
process a maximum of 150,000 tonnes of municipal/commercial solid waste per annum.
The facility will operate on a continuous basis using a computerized SCADA system for process control. Various
process parameters will have an alarm condition that will automatically notify site staff of any condition that
requires a process alteration.
3.2 Description of Site Activities
The Orgaworld London facility comprises the following operational areas:
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Main enclosed process building (including receiving area with shredder, composting tunnels, main drive
aisle, compost storage, screening hall, bioscrubber, ammonia scrubber, and the biofilters)
Compost shed
Site office building
Weighbridge
3.3 London Facility Process Description
The overall process for the Facility is described below:
The incoming SSO waste is unloaded in the Receiving Hall.
The fresh SSO waste is first put through a shredder to break down the SSO material into smaller sizes and
to blend the different sources together.
The SSO waste is mixed with a small proportion of previously composted waste. Through mixing, the waste
is given proper structural characteristics and provided with a high rate of initial biological activity.
The material is transported into the tunnels by front end loaders.
After tunnel filling, the doors are closed and the tunnels are sealed.
Air is blown into the material through the floor and is either recirculated inside the tunnel or is exhausted
to the biofilters.
Leachate is collected from a tunnel drainage system and then re-used to moisten the material through
sprinklers located on the ceilings of the tunnels.
The material advances through various process stages including heating, hygienization, stabilization, and
cooling.
A computer-controlled system monitors the process using sensors located throughout each tunnel and
ensures the water content, air temperature, oxygen content, air pressure, and air flow are in the preset
ranges for all stages of the process. These parameters are continually monitored and adjusted to maximize
biological activity.
In addition to the biofilter compartment, a bioscrubber provides additional treatment of the biofilter
exhaust. A 60 metre (m) high emission stack further ensures that odours are controlled with the provision
for the use of a booster fan allowing for an additional 20.83 cubic metres per second to be added for
dilution air.
An ammonia scrubber is included before the biofilters in order to respond to any increases in ammonia
level (dependent on incoming waste stream, composting cycle, etc.) to extend the longevity of the biofilter
media.
The air constantly flows through the system, ensuring that all indoor areas are under negative pressure
throughout.
After the composting process, tunnels are unloaded and the composted materials are screened in an
indoor mechanical screening process. The screening process results in three streams:
o Oversized material, typically contamination, is sent for landfill disposal
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o Oversized material to be composted again and used as structural material (inoculants)
o Compost ready for storage and final maturation outside in the compost shed
Appendix B illustrates the location of the sources of emissions at the site.
3.4 London Odour Abatement System
The basis of the odour abatement system is containment, extraction and treatment of odorous air. The London
Odour Abatement strategy is as follows:
1. Odour-laden air streams are collected and sent through the odour abatement system. The abatement
system consists of an ammonia scrubbers, bioscrubber and biofilters.
2. Use of a “cascade” system of air management to minimize the total air volumes by using air from the
receiving hall and tunnel hall as fresh input air for the composting tunnels.
Note that outside air enters the facility by passive wall mounted louvers. When the overhead doors open, these
louvers automatically close so negative pressure is maintained. The operational philosophy is that indoor air in the
facility is reused in other processes, but all exhaust air eventually leaves the facility after treatment by the odour
abatement system.
Odour Abatement Equipment
The processing building is equipped with a ventilation system that maintains negative pressure within the building
drawing air from the receiving and traffic halls, screening area and pump room and air from the Compost Building.
Collected air is either drawn into the composting tunnels before being sent to the exhaust system or directly to the
exhaust system that directs all collected air to the odour abatement system consisting of the following:
Collected air is first sent to two (2) roof mounted ammonia scrubbers, using sulphuric acid as
scrubbing medium to pre-treat the collected air and remove ammonia;
After the ammonia scrubber, the pre-treated air is sent to one (1) enclosed cross-flow bioscrubber;
After the bioscrubber, the air is sent to the biofilters consisting of five (5) enclosed up-flow biofilters;
After the biofilter, the air is sent to the discharge stack consisting of one (1) 60m tall stack at a
maximum flow rate of 50 cubic metres per second, the system is also equipped with three (3) booster
fans that draw in ambient air prior to discharge at a combined maximum flow rate of 20.83 cubic
metres per second. The exhaust system and booster fans have a combined maximum flow rate of
70.83 cubic metres per second.
The odorous air originating from the receiving hall, compost storage/screening area and composting tunnels is
mixed and sent through the system. The air leaving the mixbox will now be a relatively consistent odour and heat
level, and will have a maximum flow-rate of approximately 210,000 m3/hr. From the mixbox, the process air goes to
the ammonia scrubbers.
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The ammonia scrubber forces the exhaust air through a EDPM media, where it is sprayed with an aqueous mixture
of water/sulphuric acid. The resulting chemical reaction creates ammonium sulphate. This reaction continues until
ammonium sulphate of suitable concentration is created (monitored by a conductivity probe), then this solution is
dumped, the scrubber filled with fresh water/acid, and the process repeated. After the ammonia scrubber, the
levels will be <10 ppm. The ammonium sulphate solution discharged from the scrubber can be marketed as a CFIA-
registered fertilizer.
After the ammonia scrubbers, the air has the potential of being quite hot (>55oC due to compost tunnel
pasteurization), and must be cooled to remove the danger of the hot air negatively impacting biofilter performance.
Therefore, cooling towers, mounted on the roof, are used to produce a cold water stream that is used in
combination with stainless steel heat exchangers. The water from the cooling section of the bioscrubber is passed
through the heat exchangers and is cooled. The process air passing through this cooled water stream is then cooled
to below 40oC.
From the ammonia scrubbers, the air travels through to one of two cooling sections in the bioscrubber, which are
horizontal scrubbers where water is sprayed counter-current flow to the air. From the cooling sections, the air
travels through one of two humidifying sections of the bioscrubber. The goal of the humidifier is to prevent the
biofilters from drying out, and to remove odorous compounds from the airstream. The water in the humidifiers is
reused until a conductivity set point is reached. At this point the water is dumped and the humidifiers refilled with
fresh water.
The next stage of the odour abatement system is the five (5) biofilters. Biofilters T2a and T2b are 35m long X 4.5m
wide X 6 m high and T3, T4 and T5 are 35 m long x 9 m wide X 6 m high and are filled with 2.5 metres of biofilter
material. Contact time between the exhaust air and the biofilter media is 50 seconds.
The incoming humidified air is passed into the biofilter tunnels equipped with perforated PVC pipes buried within
the floor. These pipes act as a spigot floor, which gives both effective air distribution and allows the efficient
drainage of any excess water. The odorous compounds in the air are initially absorbed in the water layer on the
surface of the biofilter material. The population of bacteria and fungi that live on the media break down odorous
compounds as the air passes through the media and converts them into harmless compounds such as carbon
dioxide and water.
The exhaust air is then blown by fans and forced out the top of a 60m stack that helps provide optimum dispersion
to meet the odour guideline of 1.0 OU.
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Diagram 1:
Pathways
The pathway by which odours may impact upon receptor locations is a result of atmospheric dispersion. In general,
high wind speeds lead to emitted odour being rapidly dispersed and diluted due to turbulence, while low wind
speeds inhibit the dilution of odours, particularly when combined with cold conditions.
All efforts have been made to minimize potential impact on the surrounding area by having all treated exhaust air
from the facility exit via a 60m high stack. The combination of stack discharge velocity, height of the discharge stack,
and low odour content of the exhaust air are all steps taken to minimize impacts on the surrounding area.
Receptors
Potentially sensitive receptor locations for odour are typically defined as locations where people spend time and
have expectations of a high level of amenity. Therefore, residential properties are generally regarded as the most
potentially sensitive locations along with some recreational (such as parks) and commercial areas (such as
restaurants) where the duration of exposure may be several hours. Other recreational, commercial and industrial
areas are considered as being of medium to low sensitivity given the limited duration of exposure and lower
expectations.
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For London, there are numerous sensitive receptors less than 1,000 metres from the facility, with receptors as
close as 250 metres from the site. Appendix C provides a figure noting the location of the sensitive receptors
around the London facility.
3.5 Potential Impacts
The likelihood and frequency of exposure to odour arising from the facility is determined by the magnitude of
release, the prevailing meteorological conditions, and the distance and direction of receptors in relation to the
facility. A detailed odour impact assessment of emissions from the odour abatement system has been undertaken
using atmospheric dispersion modelling techniques as detailed in the various consultant’s reports as noted in
Section 1.0.
The predicted odour exposure resulting from the odour abatement system showed that compliance with the
criterion of 1.0 OU/m3 (based on 10min avg. more than 0.5% of the time based on AERMOD Dispersion modelling)
would be achieved at all identified sensitive receptors with exhaust air from the facility travelling out of a 60m high
stack, with a discharge velocity of 30 m/s to 42.2m/s with booster fan and an emission rate of 20,000 to 30,000
OU/s.
With respect to odour concentrations, the following table outlines the odour concentrations from predicted for the
London site from 2012 and 2017 (most available source testing data).
Table 3.5: Summary of Historical Odour Data
Year
Maximum Odour
Concentration (OU) at
Sensitive Receptors
Total Hours Exceeding 1 OU
at Sensitive Receptors
Frequency of Occurrence
of Exceedances (%)
2012 0.6 0 0.00
2017 0.7 0 0.00
ODOUR GENERATION AND CONTROL MEASURES
A summary table of Odour Generation and Control Measures is found in Appendix D.
4.1 Odour Control During Normal Operations
The application of good housekeeping and process control is of fundamental importance in eliminating and
minimizing the formation and subsequent release of odours to atmosphere. The overall aim in the operation of the
London facility is to apply Best Available Techniques (BAT) at each stage of the waste treatment process. Several
control techniques have been included within the design of the facility, to ensure the most effective implementation
of BAT for this type of process. The measures employed include:
Containment of the complete aerobic composting processes in enclosed buildings.
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Maintenance of negative air pressure inside the waste receiving/processing facility.
Active extraction of air from the main waste process areas.
Extracted air treated before being emitted to atmosphere. Odorous air travels through an ammonia
scrubber, cooler, humidifier, biofilter and is discharge out of a 60m high stack
4.2 Controls on incoming waste
The potential for odour generation is inherently linked to the nature of the feedstock (type of waste, age, storage
prior to arrival on site) and how it is handled and processed once received at the site. If incoming waste is
excessively odorous on arrival at site it will increase the potential for generation of odour during handling and
processing which can challenge the efficiency of on-site odour control and abatement measures. Customer contract
conditions which restrict the composition of the SSO feedstocks are essential to ensure that incoming waste does
not compromise the ability to manage odour effectively. All loads of incoming waste are inspected by trained
personnel to determine that the waste does not contain an undue amount of contaminants, any hazardous waste,
or possess a quality that may cause undue and potentially troubling levels of odour.
Equally, inadequate or ineffective controls on storage duration and the quantity of feedstock stored on-site can
compromise the ability of the control measure to manage odour effectively.
The Operations Manager or responsible alternate has the power to reject any incoming material that may
jeopardize their ability to prevent the emission of unacceptable odours beyond the site boundary or contains an
unacceptable amount of non-organic contamination. Any rejected material will be quarantined in the receiving hall
and either returned to sender or transferred to an appropriately licensed disposal facility off-site, and notification
made to the MOECC in accordance with the Waste ECA.
London Receiving Area Door Management
Waste delivered to the site is first weighed on the weigh scale, then the delivery vehicle backs up to the overhead
door as directed by plant personnel. The overhead door will not be opened until the delivery vehicle is properly
lined up and ready to proceed. This will minimize the amount of time the overhead door is open.
The holding time of feedstock material prior to treatment is a significant factor in the site’s potential for odour
generation. The reception area has a capacity to store up to 3 days’ worth of deliveries although the facility has a
“trigger alarm” which requires senior management to be notified, and a remediation plan created, if the amount of
unprocessed material in the off-loading bay exceeds 200 tonnes. In most circumstances, all the incoming feedstock
that arrives in a day, is processed the same day.
Contractual arrangements, and Waste ECA requirements, dictate when material can be delivered to the site.
Negative Pressure in the Facility
All efforts will be made to process the incoming waste, and place it into composting tunnels, the same day the
waste is received. This will help remedy the problem of having an inventory of fresh, shredded, unprocessed waste
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sitting in storage in the waste receiving area. There are times when this may not be possible such as seasonal
inflows of large amounts of waste, late deliveries on Friday not being processed, mechanical breakdown, etc.
Therefore, the entire facility will be kept under negative pressure, to keep the potentially odorous air inside the
facility from escaping, and possibly becoming a fugitive emission. The level of negative pressure will be monitored
by pressure sensors located throughout the facility, and the readings of the sensors are shown on the SCADA
system, which allow operational personnel to know the negative pressure situation at any time.
Leachate
A pipe-work system underneath the reception bay, storage areas and the perforated floor of the aerated compost
tunnel system, is used to collect any leachate produced within these areas. The contained system is designed to
collect the leachate in a purpose-built sealed tank. The leachate can either be pumped back into the composting
tunnels or can be disposed of to a licensed disposal facility.
4.3 Controls of Out-going Waste
Out-going material from the facility, such as residual waste or finished compost/NASM, will be minimized by
ensuring that all trucks and/or trailers are loaded inside the facility. Trailers that are transporting residual waste or
compost/NASM will have tarp covers put on the trailers before they leave the facility interior.
MEASUREMENT OF ODOUR
London facility has completed source testing in 2012 to 2017 for odour from the facility. London retains outside
contractors to complete the odour testing. The results from odour testing is incorporated into air dispersion
modelling (AERMOD). The results are compared to the 1.0 OU requirements as outlined in the ECA conditions. The
report is document and copied to the MOECC.
ROUTINE MAINTENANCE AND INSPECTION
This section of the Odour OMP describes how the London facility will address the following issues to help maintain
the effectiveness of odour controls:
Plant performance;
Planned inspection and maintenance.
6.1 General
Planned maintenance and inspection is crucial to maintaining the effectiveness of odour control measures. The
London facility has implemented a planned inspection and preventative maintenance regime which is employed on
all plant-and equipment, this includes:
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A documented maintenance schedule
A record of all maintenance undertaken.
A list of critical spare parts is held on site based on the manufacturer’s recommendations.
6.2 Building Containment
To achieve overall odour containment, it is essential that the integrity of the fabric of the main process building is
continuously maintained, other than during periods of essential maintenance. The effective operation of fast acting
doors is checked daily. Any essential maintenance will be undertaken following a risk assessment of the proposed
works which will include measures to be adopted to minimize odour release during these works.
6.3 Maintenance of other plant and equipment.
A routine maintenance plan and inspection schedule for the following equipment has been developed for the
London facility and forms part of the maintenance plan for the facility:
Extraction fans;
Gas monitors and analytical devices;
Leachate collection system and tank;
Temperature sensors;
Fast-acting doors;
Separation and sorting equipment and conveyors within the refinement section
6.4 Monitoring
Routine Monitoring
The aim of routine monitoring is to inform management as to the effectiveness of the control measure.
Table 6.6.1: Routine Monitoring
Source of Odour
Generation Control measure
Monitoring
Frequency Method Limit
Waste reception,
storage and
handling.
Inspection of loads on arrival
and identification of highly
odorous wastes.
Each load Visual and olfactory
inspections.
Based on operator
experience.
Maximum quantities of waste
retained in accordance with
design.
Daily
Visual checks that all
waste is placed
within appropriate
areas.
Prescribed in the Waste
ECA
Closure of fast acting doors
except during vehicle and
personnel entry
Daily Visual inspection of
door operation. n/a
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Cleaning of spillages. As required
As per proper
housekeeping
procedures.
n/a
Composting
Tunnels & Storage
Process control to ensure
waste effectively processed
prior to discharge.
Daily
Continuous
Monitoring of
temperature,
oxygen, humidity
and pasteurization
temperature hours.
Maintenance of
processing plant.
Variables set to optimize
composting process.
Ensure regulatory limit of
excess of 55oC for at least
3 days.
Maintain downstream
processing capacity to
match waste input.
Maximum design capacity not
exceeded. Daily
Regulatory daily limit to
be set.
6.5 Regular Olfactory Monitoring
All site personnel are responsible for reporting any operational issue which has the potential to result in odour
impact beyond the site boundary immediately to the Operations Manager.
Odour inspections or “sniff-tests” are made around the site perimeter daily when operations are being conducted
and waste materials are being received on site. The findings of these inspections are recorded in the site diary. In
addition, occasional off-site inspections are undertaken at sensitive receptors as determined in response to odours
being detected on site, off site or in response to odour complaints. When necessary, the inspection frequency will
be increased particularly in the event of odours from site activities being detected at the site boundary.
Observations including time, date, weather conditions, odour type, location, and intensity are recorded. Abnormal
site operating conditions at the time of the survey are also recorded. Any potential off-site odour sources noticeable
at the time are also recorded.
The London facility monitor local weather conditions on a continuous basis using an on-site weather station.
Electronic Nose (e-nose)
The Orgaworld London facility has installed an Odotech e-nose to provide additional early detection of changes in
odour levels. The e-nose takes real time odour tests in an air stream. The e-nose was installed in the ductwork of
the air exhaust system downstream of the air treatment equipment but prior to the exhaust stack. This location
was selected for placement of the e-nose because air flow in this location best represents the quality of airflow
discharged to the environment through the stack, while providing protection from the outside environment. The e-
nose unit takes a reading every 4 minutes, 24 hours per day.
The e-nose is calibrated by collection of an odour bag sample from the exhaust airstream which is provided to a
designated odour panel to assess the extent of odours present. The instrument is then calibrated based on Site
conditions and the results of the odour bag sample allowing for the detection of concentrations of odour in air
which is provided in odour units. Incorporation of the e-nose monitoring equipment provides Orgaworld with real-
time updates on odour concentrations in the air stream. The instrument also uses dispersion modeling software
ODOUR MANAGEMENT PLAN (OMP)
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March 28, 2018
Page 14
(AERMOD) to calculate concentrations expected at a downstream receptor based on recorded odour unit
concentrations.
These tools provide Orgaworld with capabilities for early detection of odours to allow adjustments to be made to
the process control system to help prevent odour releases in real time.
6.6 Monitoring Impacts
Monitoring of impacts will be achieved by recording and monitoring complaints and reviewing the corresponding e-
nose monitoring data. Complaints may be reported directly to the site or via the Ontario Ministry of the
Environment and Climate Change.
Odour complaints will be fully investigated and recorded in accordance with procedures set out in this OMP as per
the conditions outlined in the Environmental Compliance Approval.
6.7 Record Keeping and Reporting
Daily records are maintained in the site’s production log and include the following details:
Air flow rates through the odour abatement system
Back pressure of the biofilters which may lead to replacement or refreshing of biofilter media
Temperature and humidity data
Weather station data
All monitoring data will be reviewed by site staff to ensure optimal odour abatement performance.
6.8 Actions in the Event of Abnormal Emissions
If monitoring indicates that abnormal emissions from the London facility are taking place (such as source
monitoring, alarms triggered in the control room or through monitoring of odour in the stack emissions), the Site
Management team will take the following actions:
If required, notify the MOECC of the situation, potential impacts and corrective measures planned
Undertake site walkthrough to identify any upset conditions that may have occurred with on-site plant or
machinery (for example fan failure, door failure) or spillages which may have occurred which could be a
source of odour.
Take immediate steps to eliminate the cause of the abnormal situation in accordance with the measures
outlined in Appendix E of this OMP;
Contact the relevant maintenance contractor if necessary - to obtain telephone support/advice or to
request attendance on site;
Record their response and any remedial action taken in site log and enter in the report sent to the MOECC
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6.9 Contingencies
Contingency plans have been developed to react to situations where monitoring indicates that a potential odour
source is not completely under control or that adverse impact has occurred.
This includes accidents (or incidents) which would result in the loss of control of odorous substances and have the
potential to cause an unacceptable short-term impact on the local community, but are not considered an
emergency.
These situations have been identified as:
Deviation from normal practices during routine operations;
Receipt of an odour complaint; and
Temporary maintenance works.
This section of the OMP presents a summary of the foreseeable situations that could compromise the operator’s
ability to prevent and/or minimize odorous releases from the process and the actions to be taken to minimize the
impact.
The action plan is intended to be used by operational staff on a day-to-day basis.
A tabular risk assessment (Table 6.1, Appendix E) approach has been employed in the evaluation of odour control
techniques during maintenance and abnormal events, which:
Identifies the location and conditions under which abnormal operational conditions or failures could arise;
Summarizes the potential impact or consequences of the identified abnormal / failure situation and
assesses the degree of those impacts; and
Describes how the conditions could be prevented and/or mitigated and controlled. Most abnormal
situations can be controlled in some way by effective management.
Where planned or emergency maintenance of plant or equipment is necessary and there is a likelihood of odour
being released to atmosphere in quantities sufficient to result in detection offsite, a risk assessment of the activity
will be carried out, as part of which issues of odour generation, release, and control will be considered.
COMPLAINT HANDLING AND COMMUNICATIONS
The London facility has a comprehensive system of monitoring and site inspection to check odour control measures
are functioning effectively. If an odour complaint is received, this will be logged, investigated and dealt with as a
priority as defined by the Waste ECA.
7.1 Contact details for complaints.
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Members of the public can contact the facility directly with any odour complaints by the following means:
By telephone – the site contact number is displayed on the notice board at the site entrance.
By email
Members of the public may wish to make a complaint directly to the MOECC. The preferred method of contact for
the MOECC would be via telephone.
Methods of contacting London Facility will be displayed at the site’s entrance, shown on the company website and
communicated through meetings, press releases or other form of communication regarding the operation of the
facility.
Once a complaint has been received and the details collected, the complaint must be investigated following the
Orgaworld standard procedure outlined below.
7.2 London Complaint Investigation Procedure.
Odour complaints received at the London Orgaworld facility will be investigated, recorded, and communicated as
per the requirements outlined in the Site’s ECA (Air). See Appendix A.
Whomever goes to investigate the complaint will compile the following information:
Time of complaint
Time and date of odour event
Location of odour event
Name, address and telephone number of complainant
Weather conditions at the time of the odour event
Operational conditions at the time of the odour event
Immediate actions taken, if any
It is critical to try and get to the location of the odour event as soon as the complaint is registered to determine if
the odour has indeed been generated by the facility and not some other odour source. If odour that could possibly
be attributed to the site is detected, it should be quantified (i.e. rated from 1(barely detectable) to 10(very strong))
and qualified (i.e. constant, intermittent, garbage, ammonia, etc.). This will aid in trying to locate the possible source
back at the plant.
The Operations Manager (or investigative team) will check the site for any potential sources of odour, such as
spillages or other upset conditions which may have occurred and are being rectified. Any other potential odour
sources identified in the local area will be noted. Following the site inspection, the investigation will examine the
SCADA system to determine if there was a physical cause that can be identified such as:
Fan failure
Over-pressurization of ductwork
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Inoperative sensor, etc..
Should a complaint be received by the site long after the odour was noted, either the Operations Manager, or
designate, will investigate using records in SCADA and the historical records kept by the ‘e-nose’ odour monitoring
tracking program and weather station combination.
The findings of the investigation and whether any corrective action is to be taken will be reported to the MOECC by
the Operations Manager. All aspects of the investigation will be documented and reported as prescribed.
7.3 Further Investigation of Complaints
If the investigation concludes that the London facility could be the likely source of the odour, then further
investigation will be undertaken by the Operations Manager. Such investigations will seek to determine:
Confirmation that the London facility was the source of the odour;
The scale of the impact;
Likelihood of a recurrent event.
The Operations Manager (or investigative team) will obtain further detailed information from site records about
process conditions, observations, or operations being conducted at the time of the complaint. This will allow odour
trends to be identified and potential links with process operations or maintenance works. The Operations Manager
will discuss the findings with the company’s Senior Management Team and any effective remedial action identified
will be implemented.
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AERMOD View - Lakes Environmental Software D:\39395_CompostSite_London\2011_June\FlexibilityModels\scen05g.isc
SCALE:
0 0.05 km
1:2,203
PROJECT TITLE:
FIGURE 1SOURCE LOCATIONS, BUILDING CONFIGURATIONS AND ROOF HEIGHTS
COMMENTS: COMPANY NAME:
ORGAWORLD CANADA LTD., LONDON, ONTARIO
MODELER:
CRA
DATE:
7/4/2011
PROJECT NO.:
039395
SOURCES:
1
RECEPTORS:
2061
H=6.5m
H=6.5m
H=9.5m
H=10.5m
H=3.5m
H=4.0m
Property Boundary
CompostStack
H=4.5m
482550 482600 482650 482700 482750 482800 482850
UTM East [m]
4750
550
4750
600
4750
650
4750
700
4750
750
4750
800
UT
M N
orth
[m]
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Table 4.0: Summary of Odour Generation Sources, Variability and Control MeasuresSource Release Point Activity and Materials Involved Type of Emissions Likely Odorous Characteristics Means of Control Release Type Release Characteristics
Site Access
road and weigh
bridge
Incoming loads of residual
household wastesFugitive
Fresh waste odours. High
potential
Measures to control at source specified in
contract conditions with
suppliers/contractors
Fugitive emissions along
access road and weigh
bridge
Intermittent release,
near ground level
Opening and closing of overhead
doorsFugitive
Fresh waste odours. High
potential
Measures to minimize door opening times
specified in Operating Plan. Negative
pressure maintained in receiving building.
Holding waste in reception area FugitiveFresh waste odours. High
potential
Containment within building and abatement
by odour abatement system
Shredding of waste FugitiveFresh waste odours. High
potential
Containment within building and treatment
by odour abatement system.
Main
Processing Hall
Filling, aerating, transferring,
emptying composting tunnels
Compost process
odours, ammonia
levels
Aerobic waste decomposition
odour. Intensity reducing with
moisture reduction
Containment within the building, extraction
of air via process fans, treatment by odour
abatement system including ammonia
scrubber.
Leachate
Storage
Leachate drainage channels under
the composting floor to sealed
storage tank below floor levels in
processing building
FugitiveFresh waste odours. High
potential
Volumes of leachate evaporated on compost
tunnels when air is treated by odour
treatment system
Screening of
Composted
Material
Screening HallMechanical handling, sorting,
screening of composted wasteFugitive
Residual waste odour, small
odour potential
Containment within the building, extraction
of air via process fans, treatment by odour
abatement system.
Treated air exited via the
stack
Treated air exited via the
stack
Product StorageCompost
Storage HallStorage of output material Fugitive
Residual waste odour, small
odour potential
Containment within the building, extraction
of air via process fans, treatment by odour
abatement system.
Treated air exited via the
stack
Treated air exited via the
stack
Product
Shipment
Compost
Storage Hall
Opening and closing of vehicle
access doorsFugitive
Residual waste odour, small
odour potential
Measures to minimize door opening times
specified in Operating Plan. Negative
pressure maintained in receiving building.
Fugitive emissions
Fugitive. Very minimal
due to negative pressure
in receiving hall and
treatment via odour
treatment system
Waste Delivery
and Reception
Waste
Reception area
of building
Fugitive emissions
Fugitive. Very minimal
due to negative pressure
in receiving hall and
treatment via odour
treatment system
Treated air exited via the
stack
Composting
Phase
Fugitive. Very minimal
due to negative pressure
in receiving hall and
treatment via odour
treatment system
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Orgaworld Canada Ltd. London Facility: BMPP
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Access road and reception areas.
Delivery of a large volume of waste over a short period.
Fugitive release of fresh waste odours From delivery vehicles queuing at site entrance.
Liaise with waste suppliers to agree delivery schedules paying attention to avoiding delivery of many trucks all at one time. Examine the use of air deodorizers for the area where waste trucks will be in line to enter the facility Recording of amount of incoming waste at the weighbridge.
Site Manager responsible for negotiating with all parties delivering waste to the site. Weighbridge to record incoming feedstock quantities. Weighbridge operator to alert control room operatives of incoming loads. Control Room operatives to visually monitor reception pit levels and advise Site Manager if capacity is becoming reduced. Consider reducing or delaying inputs to the site until the backlog is cleared.
Spillage of waste and leachate from delivery vehicle.
Uncontrolled release Of fresh waste odours from open area source.
Spillages cleaned using site plant and/or manual tools in accordance with site operating procedure. Notification of waste delivery contractor that delivery trucks may have leaks and need repair. Facility to note and document truck numbers and advise City of Surrey
Weighbridge and control room operatives to alert site operative to spillage. Site operative to undertake clean up as per procedure. Site Manager to inform customer of defective waste delivery vehicles
Accident Involving Delivery vehicle causing major spillage of waste and leachate.
Uncontrolled release of odours from open area – potential to lead to odour pollution at nearby receptors.
Response in accordance with Site Emergency Plan. Attention paid to preventing material entering stormwater sewer system.
Site Manager to initiate Site Emergency Plan response – delivery vehicle to be made safe. If driveable, remaining material discharged into receiving area or vehicle removed from site. Spilt materials removed to reception pit. Area to be cleaned.
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Receiving area.
Delivery of particularly malodorous load.
Fugitive release of highly odorous emissions from receiving area – potential to lead to odour pollution at nearby receptors.
Training covering the acceptability/rejection criteria for waste acceptance. Waste receiving operator will identify particularly malodorous load at site entrance and alert Site Manager. Site Manager will either:
1. Reject the load (return to supplier or send to another appropriately permitted facility)
2. Accept the load and inform operators who will isolate the load once discharged into the receiving area and prioritise it for transfer into the composting. Site Manager will record receipt of load and actions in Site Log and liaise with supplier to prevent similar loads being received in future.
Waste receiving operators trained in waste acceptance criteria for the Ottawa facility. Site Manager adequately trained and suitability experienced to determine acceptability of malodorous loads after consultation and communication with the customer
Receiving area.
Fast-acting doors malfunction and remain open.
Potential for fugitive odorous emissions from open doors – potential to lead to odour pollution at nearby receptors.
Doors can be operated by remote control from the Receiving Area or manually. Receiving area doors are normally operated via electric motors, but do have manual functioning to allow for manual closing of doors. The routine maintenance schedule includes fast-acting doors.
Ensure damaged door is rendered ‘out of service’ and all remaining doors are used instead. Manually close jammed or damaged doors as soon as practical. Report damaged or jammed doors to maintenance team for priority repair.
Personnel access doors on the main process building.
Doors/windows accidentally or deliberately left open.
Potential for fugitive odorous emissions from open doors – may cause odour to be detected at nearby sensitive Receptors.
Personnel doors fitted with suitable door closers and kept shut always when not in use. All employees trained on the need to keep all doors to the facility closed always.
Clear signage adhered to all external doors (inside and out). All site staff required to ensure doors are closed behind them.
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Primary shredder.
Breakdown of primary shredder.
Unable to shred incoming waste. Potential for anaerobic conditions to develop within reception pit leading to releases of malodours – potential to lead to odour pollution at nearby receptors.
Primary shredder routinely maintained in accordance with manufacturer’s recommendations. Spare parts held on site to enable basic repairs as appropriate. Arrangements will be made to obtain a rental unit if repairs will take a long time Facility designed to have 3 days of waste receiving space without processing.
The facility process downstream of primary shredder will continue to operate normally. Incoming waste will continue to be received and stored until repairs made. The Site Manager to decide whether to divert incoming waste loads to other licensed facilities until repairs can be completed. Reason for failure to be investigated and maintenance schedule revised if necessary.
Biofilter
Biofilters odour destruction efficiency reduced below 80%.
Potential to cause Odour pollution at nearby receptors.
Daily inspection of biofilter media. Routine olfactory boundary monitoring. Meteorological data recorded on site using on site by staff observation and Met Office data. Site Manager to liaise with regulators and local community. If required implement an Action Plan in consultation with the MOECC to identify corrective actions and timescales. Highly unlikely this event would affect all 4 of facility biofilters. Once suspect biofilter identified, the airflow to it can be stopped and redirected too other 3 properly operating biofilters
Site Manager to review results of daily biofilter media inspections and liaise with specialist contractors. If biofilter is suspected to be operating with reduced performance. MBT Manager to decide which of the following actions should be carried out: 1. Organize sampling and analysis to determine
the biofilters destruction efficiency and quantify the residual odours emitted to atmosphere.
2. Increase frequency of sniff-test surveys. 3. Review maintenance plan and schedule and
revise if required. 4. Liaise with MOECC if complaints anticipated.
Reason for reduced performance investigated and problem rectified. Follow – up testing undertaken.
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Processing hall.
Mechanical breakdown of extraction or aeration fans.
Building air extraction rates will be reduced.
Process fans draw ‘dirty’ air from within shredding area and process hall. If extraction fans failed, the dirty air would still be extracted due to redundancy of biofilter and stack fans, but at reduced rates. Routine maintenance plans and schedules for biofilter and all building process fans. Supply of spare fans and motors on site.
Site Manager to ensure the maintenance plan and schedule are being followed and findings are recorded. Depending on how many fans are malfunctioning, the Site Manager to decide whether to continue to accept and process incoming waste, or to divert loads to another facility. Indoor air quality testing to be performed on an accelerated basis to ensure safe working atmosphere inside the facility. Site Manager to ensure basic repairs are carried out as soon as practicable. Reason for breakdown to be investigated and maintenance schedule revised if required.
Screening Hall Mechanical or electrical breakdown of the screening line
May lead to a surplus of material to be screened inside the compost tunnels
Surplus spare parts for the screening line so repairs can be made in timely fashion Daily, weekly and monthly maintenance requirements to be met via the facility maintenance plans
Site manager to ensure maintenance performed on screening line as per maintenance plans. Basic repairs to be carried out as soon as practicable. Reason for breakdown to be investigated and maintenance schedule revised if required.
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Process building.
Ineffective operation of odour abatement plant (biofilter and ammonia scrubbers).
Potential to cause Odour pollution at nearby receptors.
Daily inspection of biofilter and ammonia scrubber in accordance with manufacturers recommendations. Testing performed continuously on biofilters and at least daily on ammonia scrubbers to ensure removal efficiency Routine olfactory boundary monitoring. Meteorological data recorded on site. Facility has a redundancy of odour abatement equipment (1 ammonia scrubber, 3 biofilters and bioscrubber) so exhaust airflow can be redirected through efficient odour removal equipment while inoperative equipment is repaired or replaced. If required implement an Action Plan in consultation with the MOECC to identify corrective actions and timeframes.
Site Manager to review results of daily inspections and liaise with manufacturers. Site Manager to seek internal advice and decide which of the following actions should be carried out:
1. Organise sampling and analysis to determine the nature of any defects. 2. Determine if exhaust airflow can be routed through working odour devices
while inoperative sections repaired. 3. Increase frequency of sniff-test surveys. 4. Review maintenance plan and schedule and
revise if required. 5. Liaise with MOECC if complaints anticipated.
Reason for reduced performance Investigated and problem rectified. Follow – up testing undertaken.
Main process buildings.
Adverse weather conditions such as extreme atmospheric, temperature inversions or extreme wind turbulence.
Poor dispersion of fugitive and point source waste odours. Damage to fast-acting doors – potential for odour pollution to occur at nearby receptors.
On site weather station will help notify facility operators as to potential odour impacts due to differing or adverse weather conditions
Site Managers to ensure meteorological forecast is reviewed daily. Should forecast indicate potential poor dispersion, Senior Operations Manager to decide whether to increase frequency of site perimeter olfactory monitoring. If odour detected, review wind direction data and conduct additional olfactory monitoring at appropriate off-site receptors. Avoid so far as is practicable any non- essential odorous activities upwind of sensitive receptors.
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Location of emissions
Circumstances of abnormal
event
Consequences of abnormal event
Measures to be in place to prevent or reduce the possibility of the abnormal event arising
Actions to be taken and responsible persons
Main process buildings.
Electrical power failure.
Unable to operate air movement fans and supply air to compost tunnels or operate gas blowers
The facility possesses a back-up generator which produces enough emergency power to operate essential functions such as emergency lighting, odour abatement equipment, essential processing functions, etc.
In the event of a power failure, all electrical power requirements will be prioritized and only essential processes or needs will be operated
Operations Manager to liaise with utility provider to determine likely length of power outage. Depending of predicted length of power outage Site Manager to decide whether to contact emergency power generator supplier. Site Manager to decide whether to divert incoming loads until power can be restored.
Site Managers to liaise with MOECC to inform them of the general situation and actions taken.