John J. Sabuco, LLA
President

Stedman Fellow, Merkt Award winner, BAS Biology Western Illinois University; a GPA of 4.0/4.0 point scale in the Master of Science in Biology program at Western Illinois University. John is currently enrolled in the Doctor of Science in Ecology program at Illinois State University. John became known particularly for research in plant hardiness and ecological priority assessment. John is an expert in RCRA, SARA, LUST, CERCLA, asbestos, lead, and other indoor air quality issues, FIFRA, AIRS, and all emergency actions & procedures pertaining to chemical spills and small space confinement.

In addition, John has a particularly comprehensive knowledge of both organic and inorganic chemistry and microbiology, and he has taught the Chemistry of Hazardous Materials at Prairie State College (along with Botany and Ecology since the fall semester, 1995). John created the first protocol for the aging of volatile organic compounds in various matrices by performing a replication of compound volatilization with HPLC and using fit tests of logarithmic curves of degradation for various congeners.

John created a mathematical quantification of the forest succession phenomenon, The Tree Replacement Model, and the first formula for determining the presence and future likelihood of finding endangered or threatened species in a single site assessment (The Compromised Species Potential); two valuable indices for the conservation and restoration of our natural heritage. He also invented the most accurate equation for determining the age of trees, using only a small incremental boring which makes for safer, faster evaluations. For the evaluation of forests, John has produced the Tree Mass Illustrator and Dual Average Quartering for measuring relative mass and density of trees respectively. John invented a new general nonparametric statistical method for measuring the correlation between dissimilar populations: The Weighted Rank Correlation Coefficient. His most recent creations are a variance based index of diversity that has none of the shortcomings of other indices, an index of fragmentation, and a coefficient of geographical dispersal.

Perhaps the single most significant ecological tool developed by Mr. Sabuco is SCRAM,  The Synecological Cohesion Rapid Assessment Method. SCRAM allows the assessment of the average synecology of open land to be completed in a single day, objectively and accurately without the tedium of other assessment methods, and with only a general botanical knowledge of a given area. Currently, he is doing research in the area of reestablishing fire dependent grasslands and savanna.

John provides environmental site assessments, wetland analyses, and ecological assessments, and all of the in-house training. He holds the final position in the technical quality control circle, and he personally reviews every report before it is released,  even when on vacation! John has been the president of Eldertree Stoneoak & Brookings Inc. and The White Oak Group Inc. since its inception in 1979. John has published the following books and articles:

"The Best of the Hardiest,"1984, Plantsmen's Publications
"Where the Tall Grass Grows,"1990, Plantsmen's Publication
and fifty-eight articles for national periodicals.

John has three more books currently in progress:

"Prairie Savannascape", "Never Without", and
"Biometric Analysis: Rapid Assessment Methods for Rapidly Changing Environments"

Lynne Pecelunas Sabuco
Manager of MIS and Controller

BA, DePaul University, 1972. Lynne has become an expert in the very unusual field of rail transport of hazardous material, their control and cleanup. We are probably the only environmental firm with such an expert. Lynne is in charge of all accounting functions, including taxes. She also coordinates all computer services and system automation. Because of her efforts, Eldertree Stoneoak & Brookings Inc. is at the highest level of the information technology continuum. Our automation is quite sophisticated and allows us the fastest response time in the industry. Lynne has published:

"The History of Continuous Welded Rail," for Railway and Track Structures
"Iris in Early Spring," The Plantsman's Journal, Vol. 2, No. 2
"Veronica 'Goodness Grows' vs. 'Sunny Border Blue'" The Plantsman's Journal,
Vol 2, No. 3

Laura Walsh
Project Manager

Laura manages projects including: Phase I and Phase II Environmental site Assesments, wetland analysis, abatement and remediation projects, underground storage tank removal, site remediation and air quality studies. She also hires and coordinates with multipule sub-contractors to insure that multi-tasked project deadlines are met. She preformes technical writing for Phase I ESA and consultants's discression environmental assessments (CDEA). She is responsible for database research on projects and produces maps, photographs and graphic work. She is also responsible for acting as a liaison and mediator between private sector clients and environmental and governmental agencies to facilitate compliance with regulatory requirements

Elizabeth Garza
Office Manager

Elizabeth has an Associates Degree in bookkeeping, with an emphasis on CPA classes, from English Commerical College, Mexico, 1978. Her responsibilities include all aspects of running the office, including bookkeeping, accounting, taxes, invoices, tracking projects, payroll and human resources. Elizabeth is the lynch pin of the accounting and file accountability departments. She is also fluent in English and Spanish.