Plain guides, checked this year.
How to take a soil sample, how we lay mushroom straw, and how to read a lab sheet. Each guide shows the date someone last checked it still holds, and two are in Spanish.
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Every guide here is a sample on a demonstration site. It describes how an organization like ours works; it is not health, legal or cleanup advice.
Testing your soil after a fire
How to take a sample from a yard or garden, where to send it, and how to read the sheet that comes back.
Last checked 1 September 2026
Cómo analizar el suelo después de un incendio
The same guide in Spanish.
Last checked 1 September 2026
How we lay mushroom straw
The method we use on every site, step by step, with what to wear and what not to do.
Last checked 15 August 2026
Reading a lab sheet
What the columns on a soil lab report mean, in English and Spanish. It explains the sheet; what a number means for your family is for the county health department.
Last checked 10 July 2026
A guide nobody checks goes wrong quietly.
Labs change their instructions and agencies move their pages. Staff re-read each guide at least once a year and change the date only when they have.
Reading a lab sheet, online
One free hour on what the columns mean. Listed with the other courses.