40 CFR § 265.309 - Surveying and recordkeeping.

---
identifier: "/us/cfr/t40/s265.309"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 265.309 - Surveying and recordkeeping."
title_number: 40
title_name: "Protection of Environment"
section_number: "265.309"
section_name: "Surveying and recordkeeping."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "I"
subchapter_name: "SOLID WASTES"
part_number: "265"
part_name: "INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 6905, 6906, 6912, 6922, 6923, 6924, 6925, 6935, 6936, 6937, and 6939g."
regulatory_source: "45 FR 33232, May 19, 1980, unless otherwise noted."
cfr_part: "265"
---


# 265.309 Surveying and recordkeeping.

The owner or operator of a landfill must maintain the following items in the operating record required in § 265.73:

(a) On a map, the exact location and dimensions, including depth, of each cell with respect to permanently surveyed benchmarks; and

(b) The contents of each cell and the approximate location of each hazardous waste type within each cell.