# Backfill

- **operation:** document
- **citation:** RCSA § 16-280b-A33
- **title:** Backfill
- **source type:** regulation
- **agency:** Connecticut Public Utilities Regulatory Authority
- **status:** current
- **official:** true
- **published on:** 2025-06-11
- **effective on:** 2025-06-11
- **summary:** All below-ground Pipelines, where backfill is required, shall be installed with free-draining fill that completely passes through a 3/8-inch sieve, unless the Pipelines are otherwise protected; and any Pipeline: (1) not exceeding 2 inches in diameter shall be installed with at least 2 inches of fill above and below suc
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- **source url:** https://eregulations.ct.gov/eRegsPortal/Search/getDocument?guid=%7BE04F6097-0000-CC1C-9D68-25A0BA411C82%7D
**body:**

All below-ground Pipelines, where backfill is required, shall be installed with free-draining fill that completely passes through a 3/8-inch sieve, unless the Pipelines are otherwise protected; and any Pipeline: (1) not exceeding 2 inches in diameter shall be installed with at least 2 inches of fill above and below such Pipeline, prior to compaction; or (2) exceeding 2 inches in diameter shall be installed with at least 3 inches of fill below and on the sides and at least 6 inches above such Pipeline, prior to compaction.
- **truncated:** false
- **body characters:** 527