Mark A Sierra
Baytown, Texas ***20
Objective: To obtain a position as Environmental Supervisor in an atmosphere where my qualifications and attributed skills will be an asset.
Employment:
2019 to 2020 Vectrus Corporation
Environmental Supervisor
Identifies hazardous conditions, work practices, operations and processes using Compliance Checklists
Conducts review of assigned work functions of OCN and review environmental SOP’s, PWS, OEBGD policies that are within published limitations and capabilities
Train, review and implements safety and environmental procedures and
Identifies and advises project management in safety/environmental concerns and issues concerning compliance with applicable Safety and Environmental regulations
Assists in performance of all recurring environmental and hazardous/ waste inspections, inventories, verifications, and training programs.
Conducts 10% verification of hazardous material/waste inventories and prepares inspections reports
2018 to 2019 KBR LOGCAP III – Iraq Al Asad Air Base
Wastewater Treatment Plant
Responsible for adjusting controls, starting and stopping pumps to ensure process operations
Conduct laboratory, PH and Chlorine tests according to procedures
Clean sludge & grit from basins, weirs & baffles using high pressure washer
Retrieving samples for laboratory testing
2017 2018 Diligent Delivery / CDS Driver Houston, TX
Transporting auto parts and mechanic equipment and tools
Providing express cargo and delivery services to client
Ensuring truck is in good working order and plan route accordingly
Safety comes first but expediting parts in a timely manner is essential
Ensure paperwork matches serial numbers and receive payments
2014 to 2016 Bechtel Construction & Services- Baytown, TX
Materials Specialist / Safety Proctor
Conduct JSA meetings, discuss Toolbox Topics on steel erections
Safety Hazard recognition & controlling identifying hazards in areas
Safety Inspections weekly, monthly on warehouse tools, equipment
Secures lifting attachments to steel materials, using hand signals or hoisting operators to move load to destination
Placing ID tags on rebar and steel material for distribution / inventory
Loads materials into vehicles and install strapping to prevent
2013 to 2014 Tolunay & Wong Engineering – Houston, TX
Environmental Field Technician
Conduct safety, job observations, evaluate the risk prior to tasking
Safety discussions on assess hazards, risks, provide corrective actions to eliminate or reduce the likelihood of an accident
Receive/store/submit disposal materials and hazmat wastes
Organize/segregate hazmat waste according to classes
Maintain Safety Data Sheets for HWAP stations
Conduct weekly inspections and checklists to ensure compliance of all storage hazardous materials
Complete documentation/disposal of hazmat/wastes using 1348 forms
Familiarity of chain of custody forms on updating the classification parameters PH, moisture content, volatile-semi volatile, RCRA, Total Metals
Conduct soil sampling by removing soil samples from plastic core tubes and placing in waste characterization glass containers
2012 to 2013 Total Safety – La Porte, TX
Environmental/Asbestos Air Monitoring Technician
Safety JHA’s discussed lung inhalation, use engineered controls
Hazards immediately corrected by posting warning signs, document findings and action taken to fix problem
Conduct air monitoring for asbestos abatement projects
Conduct tasks associated with asbestos, lead-base paint, and indoor air quality (mold)
Sampling for hazardous materials on industrial insulated pipes, vessels and on tank farms
Responsible for writing close out reports
Installing 30 to 60 min tanks using hoses and checking for defects
2009 to 2011 KBR LOGCAP III – Iraq Ar Ramadi Air Base
Wastewater Treatment Plant Foreman / Incinerator Foreman
Special safety inspections on near misses, periodic site inspections
Responsible for adjusting controls, starting and stopping pumps to ensure process operations
Conduct laboratory, PH and Chlorine tests according to procedures
Clean sludge & grit from basins, weirs & baffles using high pressure washer
Operate a 30 Ton Furnace Unit that burns refuse, garbage, plastic bottles
2008 to 2008 City of Baytown – Baytown, TX
Waste Water Operator I
Administer chlorine readings from chlorine tanks daily
Changing out Graph charts indicating MPG’s of water on 24hr rotation
Switching out chlorine tanks with team members for disinfection purposes
Maintain log books by recording readings on PH, chlorine, MPG on plant
Gathering samples at time intervals to determine chlorine disinfectant levels
Conduct pump blower readings by recording & reporting to supervisors
Operating the belt press by using coagulants chemicals to support fecal waste into connex bins for disposals
Turn valves on RAS valves for flow movements thru out plants
2006 to 2007 Groundwater Environment Services – Houston, TX
Environmental Monitoring Technician
Conduct Landfill Gas tests using instrumentation to measure wells, sample points, water level meters
LFG log to collect pertinent information/ calibrate equipment daily basis
Conduct Groundwater/Soil Sampling using YSI meter
Utilize a Soil Vapor Extractor to monitor benzene pressure for UST
Operated a Peristaltic Pump for Low-Flow to prevent disturbing water
Using an interface probe to detect for Napl, depth to water, total depths
Utilize bailers to remove Napl product from monitor wells
2003 to 2005 Hydro geologic Environmental of Texas – Alvin, TX
Ground Water Environmental Technician
Monitor groundwater landfill and levels of HW can threaten a local ecosystem
In-Situ sampling and Auger sampling for client collections
GEM 2000 to measure gas/toxic pollutants in a waste disposal site to maintain compliance with local, federal regulations
Operated a Oakton, Hach, QED, Redi-Flo, Geo Pump, YSI (Low Flow)
Typed field reports to TCEQ to provide results for metal detections
Provide a detail Chain of Custody on parameters being tested
Shipping coolers using QA/QC procedures, icing down, TB’s, FB’s, EB’s
Recorded Ph, Turbidity, Re-dox, Conductivity on field logs & paperwork
1992 to 2002 Federal Bureau of Prisons / Harris County Corrections – Houston, TX
Senior Officer / Corrections Officer
Maintain order in a detention facility apply rules of the facility which you work/enforce those regulations to inmates
Enforcement procedures include arbitrating disputes between inmates, performing disciplinary action and performing inspections
Inspect inmates, their visitors, their mail and the cells they occupy for any items that violate the rules of the facility, such as drugs or weapons
Check facility entirety for fire hazards, conditions that don't meet sanitary standards, regulatory infractions and tampering of objects meant to bar entry, oversee inmates awaiting trial
Certifications:
OSHA 30
Safety Technology
Construction Site Safety Technician
Construction Site Safety Supervisor
Field Safety
8 Hour Supervisor HAZWOP Certificate
References:
Available upon request