Property line, public way, and shell-to-shell spacing for aboveground storage tanks (NFPA 30-2015 §22.4)
◉ NFPA 30-2015 §22.4 STYLE CHECK · NOT A REGULATORY SUBMISSION TOOL
⚠ Indicative tool only, and distinct from the existing OISD-118-based Tank Spacing calculator. This is NFPA 30's own methodology, structured very differently: it branches by tank type, protection level, and (for property-line spacing) a separate capacity-based reference table, rather than simple diameter ratios. All six underlying tables (22.4.1.1a/b, 22.4.1.3–.6, 22.4.2.1) were checked directly against the standard's page images after the extracted text came out badly column-jumbled.
Identification
Research entries stay private to you for practice/testing. Switch to Official once this is a real design your company should see.
Property Line / Public Way — Stable Liquids, ≤2.5 psi (Table 22.4.1.1a/b)
Result
From property line / public way (both sides)—
From nearest public way side / important building—
Property Line / Public Way — Operating >2.5 psi (Table 22.4.1.3)
Result
From property line—
From public way / important building—
Property Line / Public Way — Boil-Over Liquids (Table 22.4.1.4)
Result
From property line—
From public way / important building—
Property Line / Public Way — Unstable Liquids (Table 22.4.1.5)
Result
From property line—
From public way / important building—
Property Line / Public Way — Class IIIB Liquids (Table 22.4.1.6)
Result
From property line—
From public way / important building—
Shell-to-Shell Spacing of Adjacent Tanks (Table 22.4.2.1)