Demo

Lab Supervisor

Ash Grove Cement Company
Plant, FL Other
POSTED ON 9/24/2026
AVAILABLE BEFORE 10/22/2026
Job ID: 529093

Sapphire Americas, a CRH company and part of the Ash Grove family of companies, delivers innovative, circular solutions that help decarbonize industries and communities. We specialize in transforming residual and non-recyclable materials into alternative fuels and raw materials for cement manufacturing - offering a zero-landfill pathway that conserves natural resources and advances the circular economy. Through our work, we reduce landfill dependency, lower carbon emissions, and unlock long-term environmental and economic value.

By turning waste into opportunity, Sapphire Americas is helping build a cleaner, more resilient future.

**At Ash Grove Cement, people are our first priority. We offer a complete benefits package to include:**

  • **Health Insurance**
  • **Dental Insurance**
  • **Vision Insurance**
  • **Retirement Plan**
  • **Paid Time Off, Paid Holidays**
  • **Tuition Reimbursement**
  • **Employee Assistance Program**
  • **Disability Pay**
  • **Life Insurance**
  • **Growth Opportunities and more!**

Summary

The Lab Supervisor provides daily guidance to lab personnel in direct support of their duties and responsibilities. This position analyzes cement and other materials utilized or created during the cement manufacturing processes. The position exercises direct supervision over all laboratory personnel at the plant. The Lab Supervisor must remain available to assist with lab and processing problems.The Lab Supervisor provides daily guidance to lab personnel in direct support of their duties and responsibilities. This position analyzes cement and other materials utilized or created during the cement manufacturing processes. The position exercises direct supervision over all laboratory personnel at the plant. The Lab Supervisor must remain available to assist with lab and processing problems.

What You'll Be Contributing

  • Promote and follow all plant safety guidelines.
  • Performs regular and special chemical analysis on samples of the following: cement, clinker, coal, kiln dust, raw mill, kiln feed, and other purchased or mined raw materials for process and quality control.
  • Reviews results of chemical and physical tests performed and takes necessary actions to adjust the quality to meet established standards and plant quality and production objectives.
  • Supervises and evaluates the job performance of laboratory personnel, including disciplinary action.
  • Establishes, communicates, and assigns job responsibilities to plant laboratory employees
  • Assists in purchasing various lab equipment and supplies for chemical testing.
  • Provides constant feedback on the production process to ensure desired product characteristics.
  • Conducts regular inspections of plant operations to determine probable causes of product quality fluctuations or to detect unusual conditions.
  • Formulates mixed calculations or performs special computations for laboratory control measures.
  • Makes chemical solutions for use in chemical analysis.
  • Retains and updates laboratory research data and documentation on the lab computer. Prepares reports, graphs, and charts as requested by plant management.
  • Prepares and sends samples for compliance with wastewater treatment regulatory guidelines. Performs various tests on similar samples at the plant.
  • Ensures that QC and QA measures are being implemented on all analytical testing along with maintaining written or electronic archival of the same.
  • Acts as local PCIS and PTIS champion to review data trending and recommend corrective actions.
  • Orders supplies needed for laboratory activities.
  • Develops and maintains X-Ray Fluorescence (XRF) and other instrument calibrations with guidance from the Quality Control Manager.
  • Attends Resource Conservation and Recovery Act (RCRA) training for waste-derived fuel activities.
  • Assigns and evaluates the work of all lab technicians with support from the Quality Control Manager.
  • Prepares first-aid reports, orders first-aid supplies, and ensures safety standards compliance.
  • Additional duties as assigned by supervisor.

To Succeed In This Position, You Will Need

  • Minimum 4 year - Bachelors Degree in Chemistry or Chemical Engineering
  • Minimum 1 year of experience in a manufacturing lab environment
  • Ability to read, write, and understand warning labels, instructions, signs, etc.
  • Proficient in English written, verbal communication and listening skills.
  • Ability to demonstrates a high commitment to quality
  • Knowledge of theories, procedures and guidelines pertaining to the fields of chemistry, physics, and mathematics.
  • Proficient with instrumentation analysis and wet chemical analysis.
  • Ability to use a computer to store data and generate reports.
  • Ability to be exposed to confidential information which may have a competitive or patentable value to the company or its customers.
  • Ability to make sound independent judgments regularly
  • Ability to be exposed to toxic and corrosive chemicals on a daily basis.
  • What's next for you?**

We provide stability and advancement opportunities across North America. Use our tuition reimbursement program to help you meet your career goals.

_The above duties and responsibilities are representative of the nature and level of work assigned and are not necessarily all-inclusive. The physical demands, working environment, and other conditions of employment listed in this document are representative of but are not intended to provide an exhaustive list of the requirements for positions in this classification. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions._

**What CRH Offers You**

  • Highly competitive base pay
  • Comprehensive medical, dental and disability benefits programs
  • Group retirement savings program
  • Health and wellness programs
  • An inclusive culture that values opportunity for growth, development, and internal promotion

**About CRH**

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.

If you're up for a rewarding challenge, we invite you to take the first step and apply today! Once you click apply now, you will be brought to our official employment application. Please complete your online profile and it will be sent to the hiring manager. Our system allows you to view and track your status 24 hours a day. Thank you for your interest!

Sapphire Americas, a CRH Company, is an Affirmative Action and Equal Opportunity Employer.

EOE/Vet/Disability

CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.

AI tools may be used in certain stages of the employment lifecycle, such as candidate review; however, all final employment decisions will be made by a person.

Hourly Wage Estimation for Lab Supervisor in Plant, FL
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