We are a highly skilled team with many years of experience solving difficult problems in the areas of
We help clients to solve problems by:
Our approach is to first thoroughly understand the problem and examine what information and data are already available. Based on that understanding, we propose the problem-solving approach that fits our client’s budget and leads to a reasonable solution of the problem.
We believe that the best solutions are result of joint effort between a client and consultant and that the success of any project depends on the relationships within the project team. We build relationships with our clients. We not only consult, but we assess strengths and weaknesses of team members, and we coach them on using strengths and developing skills needed for long term success of the project and client.
Polona is an experienced manager with a unique range of expertise. She has 25+ years experience in managing and developing testing services. Her business analysis of operational and financial data save a laboratory from closing. Her knowledge of laboratory testing and data analysis skills helped to resolve an issue with a supplier of nonperforming raw materials in manufacturing. She represented her home country of Slovenia in European Forest Monitoring Program Expert Panels for quality of sampling and laboratory testing.
She is expert in testing laboratory management, testing quality control program, proficiency testing, laboratory training and course development, writing standards and procedures and laboratory documentation, statistical methods for testing laboratory (such as statistical process control, measurement system analysis, experimental design, regression analysis, ANOVA/MANOVA, sampling, …)
John is an experienced statistician, programmer, database developer and environmental scientist. He has 36 years of experience in environmental work and 28 years of experience in statistics and has worked on many cutting-edge problems. He has developed numerous environmental sampling designs and experimental designs for studies and has analyzed and reported the resulting data. He is an expert in environmental statistics, statistical quality and sampling design, including multivariate statistics, spatial statistics, statistical characteristics of laboratory and field measurements, use of screening methodologies, composite sampling, unequal probability sampling and many modern statistical methods (such as generalized least squares, generalized linear models, mixed-effects models, exploratory data analysis, etc.).
He is also an A2LA approved assessor for ISO/IEC 17025.
We provide expert consulting in the areas of
We believe that the best solutions are results of joint effort between client and consultant.
We work with our clients in any stage of their work that requires statistics from planning laboratory studies, designing experiments or on-going monitoring studies, to solving tough problems through statistical data modeling. We can help you in the following areas:
We are very experienced in working on multidisciplinary environmental projects in a variety of settings. Our mission is to build client trust and to reduce our clients’ environmental project risk, schedule and cost. We offer:
We can help to reduce environmental remediation cost, schedule and risk through improving data quality and decision making.
We provide high level statistical and business consulting services so your lab can focus on testing. We offer:
We can help to drive cost reduction and improved laboratory performance through data driven support for decision making.
We believe that students learn the most when theoretical concepts are demonstrated on practical examples and when concepts are presented multiple times in different ways. Our teaching strategy is adopted from “The Seven Laws of Teaching” by John Milton Gregory.
Training courses are developed from:
Courses are offered in-class, online or as webinars. All courses can be customized to your needs by including practical examples and case studies based on your data and practices.
We have taught in-class courses through organizations like Pittcon, ASTM, Most do Znanja (Bridge to Knowledge) and Slovenian Institute for Quality.
“The response from the course was overwhelmingly positive.”
“Very good workshop. Instructor is very knowledgeable and has a lot of practical experience.”
“Very efficient workshop, because it is based on practical examples and experience.”
We believe that success of any project mostly depends on relationships within the project team, and skills and knowledge of the team. Therefore we build a relationship with our clients through assessing strengths and weaknesses of team members and working with them on developing skills needed for long term success of the project.
We work with our clients on a regular schedule by using modern tools like cloud document sharing and web conferencing.
To accomplish project goals we prepare personal development plans, provide guidance and motivation and prepare and communicate progress reports.
Polona K Carson was my manager while working as Lab technician in Laboratory for Forest Ecology at Slovenian Forestry Institute (SFI). Her personal characteristics that set an example FOR and were motivation to her laboratory staff are responsibility, professionalism, correctness, ambition, enthusiasm, motivation, diligence, honesty, fairness, frugality, carefulness and rationality.
She had a vision and plans for expanding the range of work, increasing profits and accreditation of laboratory. If she had stayed at SFI we would certainly have gotten accredited. If it were up to her she would have developed laboratory within the fastest possible time into a modern accredited laboratory that continuously strives to improvement and follows market demands.
She was capable to make the most with available resources. For example she would purchase some used equipment to supply the demand for testing and contracted more cost efficient technicians to do some equipment maintenance. She also implemented several time saving practices like use of auto samplers. She developed simple LIMS for laboratory data management and archiving. Month by month laboratory was progressing to more organized, productive and good laboratory practice oriented work environment.
Polona was able to find new laboratory projects and quickly acquired resources for their execution. She had good connections with other laboratories, departments and institutions in Slovenia and abroad. She was always open to receive suggestions, advice, anything that would help to improve work conditions and test results. She was continuously improving and expanding her knowledge.
She expected high quality work from her staff, but she always ensured that we had good work conditions and support and were appropriately awarded for our work. She “battled on all fronts” to ensure that laboratory workflow was smooth. She implemented several tools for preventing and detecting errors. Quality of work was always first.
Under her management work atmosphere was always good. She was very compassionate and had understanding for each of us. She would express gratitude and compliment her employees and found appropriate way to deliver criticism without creating an offence.
Whenever implementing something new in the laboratory operations, Polona always trained us and explained everything we needed to know in detail. She verified that everything was well understood and that we were comfortable with new tasks and had everything we need for execution. She was well aware that good relationship with staff, correctness and collaboration are significant contributors to motivation for good work.
Polona had all characteristics and values of great manager and we all have learned a lot from her.
— Mateja (Meško) Huibers
While working together at Shaw Environmental on the USPS biological remediation projects, John and I interacted constantly on a day to day basis. I observed that without John’s through knowledge and skills coupled with his meticulous work, the projects would not have been as successful. I highly recommend John for any position that fits his skill sets. Additionally, I will add that through his motivation and guidance I have become better and more skillful in my task.
— Larry Duty, Owner at E-Lab Consultants
Mr. John has incredible hold on statistical tools, its application, data mining and subsequent interpretation. In spite of encompassing wide horizons of expertise, he is humble and strives to share knowledge. Additionally he possesses a great skill to deliver knowledge seamlessly during discussion or teaching. He has got a wonderful companion Polona who is complementary to his profession in the field of laboratory.
— Dr. Prashant Umare, CQM/OE-ASQ, NEBOSH -IGC, Lean Six Sigma Green Belt
I worked with Dr. John Carson for 8 years at the Shaw Group (and formerly the IT Group). As a recognized top Statistician, Dr. Carson was a subject matter expert experienced in environmental science, statistics and remediation. His contributions to proposals were delivered exactly as asked. I would highly recommend Dr. Carson; he would be an asset to any team.
— Jill Beck, ISO Marketing, Proposals, Communications
Polona is a great person to work with and has a unique array of expertise. During the course of our project for setting up a market oriented testing laboratory for our clients from the industry, she was able to provide my company with training and consulting services regarding the implementation of laboratory quality system compliant with ISO-IEC 17025 standard. She understood what our priorities were based on the client base that we were targeting. We relied on her advice in development of laboratory business plan, test methods and routine quality control. Furthermore, her knowledge extends to understanding statistical design of experiments and analysis of laboratory data. We were very satisfied with the results. The progress was transparently communicated and regularly discussed. The project was well managed and Polona did her very best to motivate our team during the process.
— Tanja Rajkovič, Innovation management and technology transfer professional
Dr. Polona is highly competent and committed laboratory professional. She possesses in-depth knowledge in laboratory processes and innovative way to make it more effective to achieve business objectives. She has a wide experience in laboratory QAQC programs and quality management systems. Additionally she has commendable skill involve participants to get involved and connect them to the core subject. She has got a wonderful companion Dr. john who is complementary to her profession in the field of statistics.
— Dr. Prashant Umare, CQM/OE-ASQ, NEBOSH -IGC, Lean Six Sigma Green Belt
It was my great pleasure to work with Polona. She understands problems and solves the problems in the most professional manner. Whenever she provided any professional services, they were very satisfactory. Polona, I wish you continue to be successful in the new chapter of your professional career.
— Hyeonjae (Jay) Kim, Research Scientist at Bridgestone Americas, Center for Research and Technology
Polona is very knowledgeable in experimental design and statistical analysis. Polona is a valuable resource and is willing to share her knowledge with others.
— Rita Feczer, Advanced Chemist at Cooper Tire & Rubber Company
[John is] Simply the best most practical statistician I have had the pleasure of working with.
— Matt Radek, Vice President - International Operations Director at CH2M HILL
Q: What are detection limits and why are they important? A: Detection limits are of critical importance in both industrial and regulatory contexts. A DL for an analytical measurement system (AMS) is an estimate of the lowest concentration of a substance that can be reliably detected. As the concentration of a substance approaches zero, it becomes much […]Read More
Q: Which control charts are used for monitoring test method performance? A. Control charts are efficient tools for monitoring test method performance and maintaining stability of test method bias and precision. Each data point plotted on the control chart reflects on the site performance of the laboratory measurement process, which includes written test procedures, testing […]Read More
Q: What is precision and how is it interpreted in the context of ASTM test methods? A: From the standard E177, Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods, we have the following definition of precision: Precision, n—the closeness of agreement between independent test results obtained under stipulated conditions. […]Read More
The (Lowest Concentration Minimum Reporting Limit) LCMRL is a new approach to quantitation limits that I developed under contract for USEPA Office of Groundwater and Drinking Water (OGDW). It is based on finding the lowest sample concentration that meets a specified Measurement Quality Objective (MQO) with specified probability. For OGDW’s purposes, the MQO for quantitation […]Read More
This is one of the most frequent questions that I get regarding implementation of control charts for monitoring test method performance. So I will try to give you some ideas. The most common answer that an analyst will give is: “some kind of reference material”. However reference materials are expensive, they normally come in very […]Read More
Polona created a handout on design and interpretation of control charts. We have made it available for download on our site here. We have both English (8-1/2 by 11 format) and Slovene (A4) versions. It is two pages and designed as a two-sided, three panel accordion fold brochure. When you print it, please print on […]Read More
Several times in my career I (Polona) was asked by an auditor how we measure effectiveness of laboratory staff training. This is a really good question that normally comes up when laboratory hires a new staff member shortly before an audit. The problem that a lot of laboratories have is how to verify the ability […]Read More
Using statistical quality assurance techniques to evaluate testing method performance and quality of testing results is often perceived as burdensome. Laboratory staff members see it as something difficult that takes their time away from testing for customers and decreases their productivity. It is true that it takes a lot of training and time to master […]Read More