Evidence before claims
We prioritize environmental agencies, published state rules and university extension sources. Manufacturer instructions are used for specific equipment. A commercial article alone does not establish an engineering or regulatory requirement.
Clear attribution
Each source-backed page identifies references and the date we checked them. National guidance is kept separate from jurisdiction-specific rules. Calculations distinguish referenced inputs from our own illustrative assumptions.
Review and corrections
We do not claim professional review where none has occurred. Proposed changes to numeric rules must include the relevant official reference. AI-assisted drafting is checked against cited sources before publication.
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Published October 4, 2026 · SepticHow editorial team