Daniel Cornejo
Arlington,TX
Summary
Achieved operational excellence in water and wastewater maintenance through effective team collaboration. Enhanced street maintenance processes, resulting in improved public safety and satisfaction. Cultivated a proactive service culture, driving positive outcomes for the organization.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Treatment Technician
City Of Arlington Tx
Arlington, TX
01.2025 - Current
- Oversaw monitoring and maintenance of distribution system serving approximately 400,000 residents.
- Monitored sewer lift stations and smart covers to support operational efficiency. Assisted in identifying maintenance needs and reporting issues promptly. Collaborated with team members to ensure proper functioning of equipment.
- Oversaw treatment processes for raw water and conducted laboratory tests to ensure quality standards.
- Modified chemical compositions to ensure optimal performance and safety standards.
- Executed remote site inspections and implemented necessary corrections.
- Executed nightly pumpage report processing and filled SWMOR accordingly.
Senior Operator
City of Lewisville
07.2024 - 01.2025
- Executed repair and maintenance of water and wastewater infrastructure systems.
- Overhauled fire hydrants and mainline valves to ensure optimal functionality.
- Executed operation of heavy equipment for excavation and grading projects.
- Executed installation of new water and sewer services to enhance infrastructure reliability.
- Assisted in the repair and maintenance of sewer mainlines. Supported teams in identifying and resolving pipeline issues. Contributed to the successful completion of rehabilitation projects.
- Executed unidirectional flushing procedures to enhance water quality and system efficiency.
Wastewater Treatment Operator
Freshpet
02.2024 - 07.2024
- Managed operation and maintenance of treatment plants to ensure optimal performance.
- Executed laboratory tests and optimized chemical dosages for enhanced accuracy.
- Operated membrane filtration systems to process sludge and secondary effluent efficiently.
Maintenance Supervisor
City of Mansfield
09.2023 - 02.2024
- Oversaw maintenance operations for plant and pump stations to ensure optimal functionality.
- Facilitated purchasing processes for inventory control and equipment diagnostics.
- Directed safety program oversight and addressed customer concerns promptly.
Maintenance Technician/Operator
City of Mansfield
04.2022 - 09.2023
- Executed electrical and mechanical maintenance and installation tasks to ensure optimal equipment performance.
- Executed chemical and biological testing protocols to ensure compliance with safety standards.
- Oversaw preventative maintenance and managed inventory control processes.
Crew Leader
City of Grand Prairie
10.2019 - 04.2022
- Oversaw water and sewer main repair operations and managed personnel assignments.
- Managed operation and maintenance of heavy equipment to ensure optimal performance.
- Oversaw GIS map management and coordinated infrastructure enhancement initiatives.
- Operated heavy equipment for city projects. Assisted in maintenance of treatment plant operations. Supported wastewater collection efforts as operator I. Contributed to general maintenance tasks for county facilities.
Education
Liberal Studies -
Ventura College
High School Diploma -
Frontier High School
Water Science Courses -
Santa Barbara Community College
01.2019
Skills
- Water distribution
- Water treatment processes
- Valve operation
- Chlorination systems
- Filter maintenance
- Flow control
- Pipe fitting
- System troubleshooting
- Water quality analysis
- Chemical handling
- Hazardous waste management
- Sampling techniques
- Instrument Calibration
- Laboratory testing
- Disinfection procedures
- Pump operation
- Sample collecting
- Equipment operation
- Hazardous materials handling
- Preventive Maintenance
- Emergency response
- Valve rebuilding
- Teamwork
- Problem-solving
- Attention to detail
- Multitasking
- Reliability
Engaged in conversations and written correspondence in Spanish, ensuring clarity and understanding across cultural contexts
Certification
- TCEQ Wastewater Collections 2
- TCEQ Water Operator A
Licenses
TCEQ wastewater collections 2
TCEQ water operator A
Timeline
Treatment Technician
City Of Arlington Tx
01.2025 - Current
Senior Operator
City of Lewisville
07.2024 - 01.2025
Wastewater Treatment Operator
Freshpet
02.2024 - 07.2024
Maintenance Supervisor
City of Mansfield
09.2023 - 02.2024
Maintenance Technician/Operator
City of Mansfield
04.2022 - 09.2023
Crew Leader
City of Grand Prairie
10.2019 - 04.2022
Liberal Studies -
Ventura College
High School Diploma -
Frontier High School
Water Science Courses -
Santa Barbara Community College