Using STA Certified Compost – Manufacturer Requirements – Passing Test Results

STA Certified Compost – Test Result Limits for Compost Manufacturers STA Certified Compost participants must meet the EPA testing limits for heavy metals AND pathogens in every CTDS (Compost Technical Data Sheet) for every STA Certified Compost product. METALS – maximum concentrations expressed on a dry weight basis (Chromium and Molybdenum do not have EPA limits) Arsenic (As) 41…

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Using STA Certified Compost – Manufacturer Requirements: Test Results

Understanding Compost Technical Data Sheets Since growing conditions and plant requirements vary, compost users can benefit from information that accurately characterizes the compost products they use. This data can help you to improve the way you use compost to best meet your particular needs and to fit your specific situation. Fortunately, all STA Certified Compost…

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Using STA Certified Compost – Program Foundation: Lab Oversight

The Compost Research and Education Foundation www.compostfoundation.org Research Supporting scientific research is a core focus of the CREF mission.  Here are some of the most current research projects and upcoming future project areas from the Foundation: Soluble Salts This literature review looks at the issue of soluble salts with the goal of beginning a dialogue…

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Using STA Certified Compost – Program Foundation: Permits

Compost manufacturers participating in the STA Certified Compost program are required to be in compliance with all local, state and national regulations for manufacturing compost. Composting is a business, and is regulated by both State, Local (county, township, city) officials for many impacts, including environmental impact (leachate, air emissions); neighbor issues (odor, traffic) and operational…

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Using STA Certified Compost Program Foundations: Testing Methods

The Test Method for the Examination of Composting and Compost (TMECC) Provides detailed protocols for the composting industry to verify the physical, chemical, and biological condition of composting feedstocks, material in process and compost products at the point of sale. Material testing is needed to verify product safety and market claims. TMECC provides protocols to sample, monitor, and…

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Using STA Certified Compost – Manufacturer Requirements: Certified Labs

Certified Labs Representative test results come from accurate compost sampling methods and from quality labs. STA Certified Compost participants must use TMECC technical sampling methods, and labs that undergo the Compost Analysis Program (CAP) quality oversight. STA Compost-Certified Laboratories provide analytical services for STA Certified Compost participants (Compost Manufacturers) and use TMECC protocols. These labs are tested three times…

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Using STA Certified Compost – Program Foundation: Defining Compost

Definition of Compost Knowing what compost is (and what it’s not) is an important first step in ensuring that you use compost in the best way possible. Below is the official definition for what can be considered compost. Compost – is the product manufactured through the controlled aerobic, biological decomposition of biodegradable materials. The product has…

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