All jobs within 50 km around Ottawa in Maintenance & Repair

JOB SUMMARY

Fleet Maintenance & Technical Services is responsible for: scheduled, unscheduled and emergency service; seasonal overhauls; vehicle commissioning/decommissioning; vehicle inspections and certifications; warranty monitoring; shop and specialty tool maintenance/management; maintenance of small equipment and special equipment such as fire, ambulance, ice resurfacing, turf, etc.; repair performance analysis; and Technical Services including specifying, acquiring, leasing and disposing of Municipal Fleet Vehicles.

You are responsible for performing a wide range of duties expected of a Vehicle and Equipment Technician 2, including, but not limited to, the following: conducting diagnostic inspections, performing general mechanical overhaul and repair work, and performing scheduled preventive daily maintenance inspections and repairs on vehicle system and components including, but not limited to, steering, suspension, electrical, ignition, fuel, emission control/exhaust and engine management, hydraulics, and vehicular climate control systems.  

You perform all maintenance and repairs to a wide variety of fleet vehicles systems and components including, but not limited to, vehicles powered by gas, diesel, propane or natural gas, tractors, graders, loaders, dozers, cranes, mowers, heavy vehicles (i.e. garbage trucks, zambonis, ice resurfacing equipment, etc.), and automotive associated equipment including, but not limited to, boilers and compressors.

EDUCATION AND EXPERIENCE

Completion of Truck and Coach Technician 310T apprenticeship program of 6720 hours

Minimum of 2 years of experience within a Municipal Fleet or similar truck and coach environment

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• City policies and procedures affecting shop operations
• Considerable knowledge of the vehicle systems and the standard practices, safety issues, materials, tools, equipment and supplies to carry out maintenance operation
• Manual and electronic diagnostic equipment 
• Personal computers with ability to use the Fleet Management Information System
• Code of Conduct rules and policy
• Collective agreement
• Material Safety Data Sheets
• Safe work practices of the trade including working at heights and the lifting of heavy objects
• Knowledge of applicable health and safety legislation, including the rights and duties of workers.

COMPETENCIES, SKILLS AND ABILITIES

• Work independently with minimal direction, and collaboratively with peers and managers as part of a maintenance repair team 
• Ability to read, understand and interpret blueprints, wiring diagrams, service manuals, schematics, drawings, work orders and any other documents used in the maintenance operation
• Ability make estimates of materials and time required to perform the work 
• Ability to proceed effectively with emergency work including on the road work with limited resources to provide maximum results and timelines
• Skill in the use of jacks, hoists, overhead cranes, lift trucks and mobile lifting devices
• Skill in the use of high-pressure gas and electric welding equipment (Mig. Arc. Bronze, steel, aluminum) to effect repairs as authorised under the technician license
• Possess analytical skills and be detail oriented
• Good manual dexterity and ability to work to close tolerances 
• Able to communicate effectively, both orally and in writing, with management, manufacturers and engineers to provide for problem solving and suggest corrections to problems found on specialized vehicles and equipment
• Ability to provide training and explain instructions and guidelines to others effectively
• Able to efficiently use, operate and maintain tools, precision measuring instrument, state-of-the-art automotive diagnostic and test equipment to diagnose mechanical, electrical and hydraulic malfunctions
• Possess a work record of good attendance and job performance 
• Possess sound judgement 
• Use initiative to meet deadlines
• Flexible, adaptable and able to accept constructive criticism
• Physically fit with stamina to perform the duties of the trade (which may include working in a standing position for long time)
• Able to work in uncomfortable or confined positions on occasion
• Able to lift and carry heavy parts and equipment safely
• Able to tolerate exposure to moderate amounts of noise, dust, grit, oil/grease, fumes, solvents, paints, lacquers, hot/sharp metals and surface finishing products
• Provide own hand and air tools relating to the trade (SAE & Metric as required) according to provisions of the collective agreement 
• Able to work a variety of scheduled shifts, including week-ends, on-call, evening and nights, as per the collective agreement
   

JOB SUMMARY

The Transit Fleet and Facilities Maintenance team provides safe, reliable, efficient, timely and cost-effective transit vehicle maintenance services to support federally regulated transit services within the City of Ottawa. 
 

You are responsible for performing a wide range of duties expected of a Truck and Coach Technician, including, but not limited to, the following: conducting diagnostic inspection of vehicles*, performing general mechanical overhaul and repair work , and performing daily maintenance repairs.  You perform all unit changes or repairs to Fleet vehicles (including but not limited to transmission, brakes, suspensions, electrical components, injectors, radiators, steering, differentials and air systems) and make miscellaneous adjustments to doors, destination signs and other vehicle systems.
 

vehicles*-refers to buses within the Transit Fleet Maintenance Division and any other Fleet vehicle within the Municipal Maintenance Division (cars/trucks, forklifts, etc.). 

EDUCATION AND EXPERIENCE

Completion of Truck and Coach Technician apprenticeship program of 6720 hours
Completion of advanced technical courses is an asset

Minimum of 1 year of experience following attainment of certification

 

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• City policies and procedures affecting shop operations
• Considerable knowledge of the vehicle systems, and the standard methods, tools, and equipment used in the trade 
• Diagnostic equipment 
• Personal computers, with ability to use the Fleet Management Information System.
• Safe work practices of the trade.
• Knowledge of applicable health and safety legislation, including the rights and duties of workers
   

COMPETENCIES, SKILLS AND ABILITIES

• Successful completion of a pre-employment ergonomic assessment is required
• Work independently, with minimal direction, and collaboratively with peers and managers as part of a maintenance repair team  
• Read, understand and interpret service manuals, schematics, drawings, and work orders
• Plan work and make estimates of materials and time required to perform the work
• Perform safety inspections on buses/vehicles
• Operate within a computerized Fleet Management Information System
• Ability and facility to use tools and equipment with precision
• Possess analytical skills and be detail oriented
• Communicate effectively, both orally and in writing
• Able to efficiently use, operate and maintain tools and state-of-the-art automotive diagnostic and test equipment 
• Able to organize, clean and maintain a safe work area
• Possess a work record of good attendance and job performance 
• Possess sound judgement 
• Use initiative to meet deadlines
• Able to establish and maintain good working relationships with fellow employees in a team environment
• Good manual dexterity and ability to work to close tolerances 
• Able to tolerate exposure to moderate amounts of noise, dust, grit, oil/grease, fumes, solvents, paints, lacquers, hot/sharp metals and surface finishing products
• Physically fit, with stamina to perform the duties of the trade (which may include working in a standing position for long time periods)
• Able to work in uncomfortable or confined positions on occasion
• Provide own hand tools relating to the trade (SAE & Metric as required) according to provisions of the Collective Agreement 
• Able to work a variety of scheduled shifts, including week-ends, on-call and nights, as per the Collective Agreement

JOB SUMMARY

The Wastewater Collection Branch is responsible for the operation and maintenance of the City’s Wastewater Collection infrastructure and systems including communal wastewater treatment facilities and wastewater system, and oversees the Sewer Use Program.    

You are responsible for performing or assisting with inspections, maintenance and general repairs of the City’s sanitary, combined and storm sewer system structures (e.g. access/maintenance chambers, catch basins, inlet/outlet grills, regulators, manhole covers) that don’t require excavation. 

Work activities are divided into the following groups and staff rotate through them on a regular basis: in-sewer inspection, in-house repairs, surveys, routine cleaning, special cleaning, service truck and inspection of contractor construction/major repairs.

EDUCATION AND EXPERIENCE

Completion of Grade 12

Minimum of 15 months of experience in sewer maintenance or a similar construction or maintenance field 

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• Understanding of sanitary, combined and storm sewer systems and related structures Unit instructions, Standard Operating Procedures, manuals and processes
• Applicable City, ESD and Branch policies, standards, guidelines and processes
• Construction standards and methods for the installation and repair of   collection systems components
• Preventive maintenance activities for the sanitary, combined and storm sewer system
• Sewer Use By-law 
• Knowledge of applicable health and safety legislation, including the rights and duties of workers

COMPETENCIES, SKILLS AND ABILITIES

• Safely operate the various equipment and hydraulic/power/hand tools required for the job
• Work well independently and as part of a team
• Writing skills to complete required work documentation
• Good verbal communication skills
• Ability to use a personal and/or handheld computer and software such as MS Outlook, MS Word, ArcGIS, geoOttawa
• Read and understand drawings or sketches 
• Punctual and dependable
• Good attendance record
• Physical ability to perform the duties of the job
• Willing to work on-call and overtime, as required

JOB SUMMARY

The mandate of Facility Operations is to operate and maintain all City facilities and City-managed buildings, which represents approximately 900 buildings and includes police, fire, libraries, child care, paramedic posts, recreation, culture, public works, City Hall and other administrative buildings, long-term care facilities, and facility outdoor property. The Facility Operations units deliver facility management and maintenance services within assigned geographic and/or specialty areas.

You are responsible for performing duties associated with the operation and maintenance of all City facilities.

EDUCATION AND EXPERIENCE

Completion of Grade 10

Up to one month of related experience

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• General facility cleanliness and safe work practices
• Cleaning chemicals and disinfectants and safe application/procedures
• Effective cleaning techniques
• WHMIS
• Customer Service principles
• Knowledge of applicable health and safety legislation, including the rights and duties of workers.

COMPETENCIES, SKILLS AND ABILITIES

• Able to communicate effectively with the general public and staff
• Able to work effectively in a team environment
• Good interpersonal and customer service skills
• Polite and punctual
• Possess the physical capability to perform the ongoing duties of the position
• Prepared to work flexible hours including evenings and weekends
• Presentable to the public

JOB SUMMARY

The mandate of Water Services is to provide treatment and distribution of a sustainable supply of high-quality drinking water and is committed to protecting the environment by collecting and treating wastewater for the health and prosperity of Ottawa. 

You are responsible for planned, unplanned and emergency inspection, testing, installation, maintenance, troubleshooting and/or repair of electrical and electronic equipment within Water Services’ water treatment, supply and storage facilities (including the Water Purification Plants, pumping stations, reservoirs, elevated tanks, metering facilities and well treatment systems) or wastewater treatment and collection facilities (including wastewater treatment plant, pumping stations, odour control facilities, and regulators). 

These duties are carried out in an industrial, production and quality-focused environment and, as such, must be completed in consideration of, and in close coordination with, other skilled trade and maintenance staff in the Branch.

As a licensed water treatment, wastewater treatment and/or wastewater collection system operator, you are also responsible for operating various pieces of process equipment (in Drinking Water this spans water treatment, distribution and supply process equipment and in Wastewater this spans wastewater treatment and collection process equipment) and/or adjusting various water or wastewater treatment system process parameters, after prior consultation with and in close coordination with other licensed operating staff in the Branch.

Note this equipment includes, but is not limited to:  electrical power supply, distribution and generating equipment (up to 44kV), generators (up to 4.8MW), motors (up to 1.5MW), associated motor starter and control equipment, power cabling, transformers, standby, emergency and uninterruptable power systems, lighting systems, power control and lighting panels, electric actuators, electrical metering and monitoring systems, instrumentation and control equipment, and building services equipment. The equipment may or may not be energized, during the work, and is located in a variety of locations including chemical feed and storage areas, electrical equipment rooms, machine rooms, generator rooms, pump rooms, valve rooms and chambers, confined spaces, elevated tanks, above and below grade reservoirs, outdoor power substations, office areas, etc.

EDUCATION AND EXPERIENCE

Completion of Industrial Electrician or Construction and Maintenance Electrician apprenticeship program of 9000 hours.  

Minimum of 5 years of experience as a licensed Industrial Electrician or Construction and Maintenance Electrician in a combination of both process-dependant industries and construction services including demonstrated experience in the maintenance, troubleshooting and repair of low, medium and high voltage electrical equipment and the installation, construction and commissioning of low, medium and high voltage electrical systems.

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• Canadian Electrical/Building/Fire Codes
• Ontario Electrical Safety Code
• Electrical Utility Safety Rules
• Hydro One Utility Work Protection Code
• Relevant Ontario Ministry of the Environment and Climate Change (MOECC) acts, regulations, standards and guidelines
• Relevant Ontario Ministry of the Labour (MOL) acts, regulations, standards and guidelines
• Branch, Departmental, Unit and Section roles and responsibilities
• Relevant City, Branch, Departmental, Unit and Section procedures, policies, manuals and processes
• City Purchasing Bylaw and policies, as related to authorized purchases and responsibilities
• CVOR Vehicle Requirements as identified by the Province
• Ontario Traffic Manual - Book 7 as it applies for traffic control plans as regulated by the Ministry of Transportation (e.g. when working at remote facilities that require partial or full lane closures)
• Electrical theory
• Electronics, instrumentation and controls 
• Installation, inspection, testing, maintenance and repair methods and procedures for high, medium and low voltage equipment including pumps, motors, compressors, ventilating equipment, switchgear, transformers, etc.
• Math concepts applicable to the trade 
• Working knowledge of mechanical equipment, materials and maintenance procedures
• Computer system applications pertinent to water and/or wastewater facilities including SCADA Systems and Maintenance Management Systems
• MS Office and Outlook
• Knowledge of TSSA rules & regulations
• Knowledge of applicable health and safety legislation, including the rights and duties of workers
• Knowledge of operational, monitoring and control functions associated with drinking water treatment and water pumping/storage processes, or wastewater treatment and collection processes is an asset
   

COMPETENCIES, SKILLS AND ABILITIES

• Work effectively, with others and independently
• Communicate clearly and concisely, both orally and in writing, including completing technical, test and other reports or forms
• Perform trade-related preventive and corrective maintenance procedures
• Able to operate small and large equipment (e.g. Person Lifts, Zoom Boom, Manitou, etc.)
• Analyze, identify and solve problems quickly and effectively
• Use a wide range of hand tools, machine shop tools, measurement tools and testing equipment
• Make precise and accurate measurements and layouts
• Accurately read, interpret and mark-up technical drawings
• Clearly sketch electrical schematics and installations
• Understand and effectively utilize new information for problem-solving and decision-making
• Good organizational skills
• Readily establishes effective interpersonal relationships
• Good record of attendance
• Alertness, dependability, punctuality
• Work well under pressure and without constant direct supervision
• Attention to detail
• Physical ability to perform assigned tasks, including climbing ladders, scaffolds and elevated tanks, entering confined spaces
• Willingness to work outside of normal hours 
• Comfortable working at heights
• Comfortable working in and around confined spaces 
• Utilize appropriate or specialized PPE and safety equipment such as SCBA, rescue equipment, personal gas monitors and fall protection

JOB SUMMARY

The Water Distribution Branch manages the operation and maintenance of City of Ottawa’s water distribution system to ensure the continuous and adequate supply of high quality potable water to customers at the lowest cost, including condition assessment, leak detection, operation, repair and maintenance of all mains, valves, and services within the distribution system; inspection, maintenance and repair of fire hydrants; and support to City capital and private development works related to water distribution buried infrastructure.

As a Water Distribution Operator, you are responsible for performing and assisting with a variety of tasks related to the water distribution system using specialized tools and equipment; maintenance, inspection, water quality testing, component installation replacement or repair, manual labour and other related duties and tasks associated with the operation and maintenance of the City’s water distribution system, either alone or under the guidance of an Operator in Charge or crew leader.

As a Water Distribution Operator in Training, you are responsible for performing some or all of the duties of the Water Distribution Operator, under the direction of the supervisor.

EDUCATION AND EXPERIENCE

Completion of Grade 12

Minimum of 13 months of experience in a construction or utility operations and maintenance environment

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• Advanced knowledge of water main and appurtenance materials, installation standards and specifications, repair, maintenance and operation principles
• Intermediate knowledge of mathematics, chemistry, water system hydraulics and conveyance principles
• Intermediate knowledge of public health principles and water quality control, assurance and disinfection procedures used within a water distribution systems
• Intermediate knowledge of current provincial legislation pertaining to drinking water systems
• Advanced knowledge of health and safety procedures, equipment and legislation
• Detailed knowledge of the of corporate/departmental by-laws, policies, procedures, and the City’s standards and specifications in relation to the installation, maintenance and repairs of the water distribution system
• Detailed knowledge of techniques and equipment used to safely excavate around, under, or in close proximity to other utility structures, i.e. gas, hydro and Bell
• Detailed knowledge of roadway work operations and traffic control regulations
• Detailed knowledge in the use and safe operation of tools such as drills boring machines, valve turning machines, grinders, torque wrenches, impact hammers, pipe saws, chainsaws, etc.
• Knowledge of handheld water quality testing equipment
• Knowledge of safe work practices in hazardous environments including traffic, confined space, trenches, adverse weather conditions and in proximity to heavy construction equipment
• Knowledge of applicable health and safety legislation, including the rights and duties of workers

COMPETENCIES, SKILLS AND ABILITIES

• Follow instruction and work as part of a team
• Communicate effectively with the general public and other employees
• Demonstrate reading skills to read and interpret written correspondence, engineering design plans and maps
• Demonstrate written skills to record field data from work activities
• Recognize potential issues or hazards and recommend corrective action
• Operate and demonstrate use of required tools and equipment
• Operate mobile computing devices for the purpose of data collection
• Good interpersonal skills
• Initiative, strong judgment, reliable, highly self-motivated, conscientious
• Mechanical aptitude
• Safety oriented
• Dedication to the position and to the community
• Physically capable of performing all duties and activities associated with the position
• Ability to work overtime at night, on weekends and holidays, and participate in on-call rotations throughout the year

JOB SUMMARY

Traffic Signal Installation & Field Programs is responsible for Traffic Signal assembly, installation, modification and maintenance, Traffic Control Room management of data and video equipment and data communications, Signal Timing engineering, Camera assembly, installation, modification and maintenance, and Re-lamping management.

You work with a team of traffic signal specialists to assist in the assembly, installation and maintenance of traffic control devices to support the city’s goal of maintaining and expanding the traffic system network to meet the needs of the traveling public.

EDUCATION AND EXPERIENCE

Completion of Grade 12 

At least 6 months of post-secondary training obtained from a community college in basic electrical theory, basic construction theory or related field is desirable

Minimum of 1 year of related experience in the electrical, construction and maintenance activities of both the public and private sectors; such sectors may include Traffic Light and Street Lighting construction and maintenance, Hydro Utilities, or factory plant maintenance

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• Occupational Health and Safety Act and Regulations as it relates to traffic control, electrical hazards and any other relevant sections.
• Ontario Regulation 239/02 Minimum Maintenance Standards.
• Ontario Traffic Manual
• Ontario Traffic Act
• Provincial Workplace Violence and Harassment Legislation 
• City policies and procedures as they relate to Occupational Health and Safety, WHIMIS, and work-area protection
• Computer literacy in Microsoft Office Suite (Word, Excel)
• Knowledge of applicable health and safety legislation, including the rights and duties of workers.

COMPETENCIES, SKILLS AND ABILITIES

• Ability to understand and follow wiring schematics and diagrams
• Work and communicate effectively with supervisors and coworkers
• Continuously learn, assimilate and use new information
• Follow written and verbal instructions with a minimum of supervision
• Energetic, resourceful and dependable
• Capable of exercising tact, diplomacy and discretion in dealing with internal and external contacts
• Ability to pull cable through ducts in all weather conditions, without physical limitations
• Ability to lift items of 75 lbs weight and heavier when the load is shared between two persons
• Ability to work at height, either on ladders or in an aerial bucket
• Ability to kneel and crouch when performing tasks
• Ability to work in manholes and small spaces
• Ability to work on-call on a rotating basis, and overtime as needed
• Ability to respond to call out and arrive on site with 45 minutes
• Available to work extended hours
• Available to be ‘on-call’ on a back-up basis outside of normal working hours including on weekends and statutory holidays

JOB SUMMARY

The mandate of Facility Operations is to operate and maintain all City facilities and City-managed buildings, which represents approximately 900 buildings and includes police, fire, libraries, child care, paramedic posts, recreation, culture, public works, City Hall and other administrative buildings, long-term care facilities, and facility outdoor property. The Facility Operations units deliver facility management and maintenance services within assigned geographic and/or specialty areas.

You are responsible for performing duties associated with the operation and maintenance of all City facilities.

EDUCATION AND EXPERIENCE

Completion of Grade 10

Up to one month of related experience

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• General facility cleanliness and safe work practices
• Cleaning chemicals and disinfectants and safe application/procedures
• Effective cleaning techniques
• WHMIS
• Customer Service principles
• Knowledge of applicable health and safety legislation, including the rights and duties of workers.

COMPETENCIES, SKILLS AND ABILITIES

• Able to communicate effectively with the general public and staff
• Able to work effectively in a team environment
• Good interpersonal and customer service skills
• Polite and punctual
• Possess the physical capability to perform the ongoing duties of the position
• Prepared to work flexible hours including evenings and weekends
• Presentable to the public

JOB SUMMARY

The mandate of Facility Operations is to operate and maintain all City facilities and City-managed buildings, which represents approximately 900 buildings and includes police, fire, libraries, child care, paramedic posts, recreation, culture, public works, City Hall and other administrative buildings, long-term care facilities, and facility outdoor property. The Facility Operations units deliver facility management and maintenance services within assigned geographic and/or specialty areas.

You are responsible for maintaining, trouble shooting, repairing, monitoring, controlling, designing and inspecting all mechanical and ancillary systems associated with City facilities. You are also responsible for the design, construction and installations of new and updated HVAC and Building Automation systems in the facilities including installation and maintenance of Refrigeration, Natural Gas and Propane fired equipment.

EDUCATION AND EXPERIENCE

Completion of Grade 12

Journeyman’s Refrigeration & Air Conditioning License and Certification achieved through 9000 apprenticeship hours  

Journeyman’s License in Gas #1 achieved through 6000 apprenticeship hours 

Minimum of five (5) years of related experience within outlined trade following the attainment of the Journeyman’s Certificates

CERTIFICATIONS AND LICENCES

KNOWLEDGE

• Service, maintenance and operations of gas combustion systems
• Service, maintenance and operation of plumbing, electronic and pneumatic controls
• BAS training including BACNet
• Relevant guidelines, policies, regulations and legislation
• Preventative maintenance procedures
• Purchasing Bylaws and tendering and contract processes
• Safe handling of chemicals, lubricants and other service related material
• Working knowledge of all applicable trade tools, i.e. manometers, vacuum pumps, etc. 
• Direct Digital Control systems
• Personal computer business application systems use
• Read and interpret blueprints, plans, schematics, equipment manuals and technical specifications
• Ontario Electrical Code
• CSA Z-462 Workplace Electrical Safety
• Arc-Flash Calorie Rated PPE
• Indoor air quality requirements as per ASHRAE
• B-51 Boiler and Pressure Vessel Code
• B-52 Refrigeration and Air Conditioning Code
• B-149 Natural Gas and Propane Code
• Natural Gas Fired Generators
• Knowledge of applicable health and safety legislation, including the rights and duties of workers

COMPETENCIES, SKILLS AND ABILITIES

• Demonstrated ability in service, maintenance and operations of fuel-fired systems
• Mechanical and Electrical troubleshooting expertise
• Safety conscious, working on fuel fired equipment
• Be able to assist in the review of contracts for compliance with legislative and corporate requirements
• Be able to assist in the review of drawings and specifications for new construction projects.
• Communicate effectively with clients, contractors, other employees and public
• Read building drawings (mechanical, electrical and architectural)
• Interpret job and/or manufacturer specifications
• Prepare work orders and parts orders
• Work independently with minimal supervision
• Personal computer business application systems use
• Troubleshoot, service and maintain 600V equipment; Work on voltages from 24VAC-750VAC
• Reclaim and record refrigerants as per MOE regulations and ODP requirements
• Braze, weld, cut and solder using torches and basic arc welding procedures within TSSA guidelines  
• Silos welding/brazing
• Ability to program, troubleshoot and maintain various BASs
• Be able to proper setup of emissions on all fuel fired equipment (MOE)
• Be able to work with MMS to create and update PM routines
• Supervise contractors and participants in projects
• Display initiative and innovation in problem solving
• Effective interpersonal and Communication Skills
• Ability to work well with minimal supervision
• Dependable and demonstrates initiative
• Polite and punctual
• Ability to work in extreme industrial conditions as workers are exposed to hot & cold workplace temperatures, noise, odours, potentially toxic and explosive atmospheres
• Ability to work at heights 
• Must be prepared to occasionally work irregular hours as required
• Conduct repairs from elevated platforms and/or confined spaces
• Work in areas with corrosive chemicals