Threlko Inc.

Certified septic pumping company · Ninety Six, SC · Greenwood County

Certification status

Listed in the SCDES on-site wastewater (OSWW) contractor registry as of 2026-07-23 — verify current status at the official source

Certification categories

Installer (Tier 2)

License / registration #

OSWWI0319

Location

P.O. Box 298, Ninety Six, SC, 29666

Phone (from public registry)

(864) 223-5783

This profile is compiled from public registry records. It is not an endorsement, and The Septic Directory has no business relationship with Threlko Inc. unless noted. Is this your company? Claim or correct this listing — it's free.

What septic pumping certification means

South Carolina permits on-site wastewater (septic) installers and pumpers through the Department of Environmental Services (SCDES). This directory is compiled from the official SCDES OSWW contractor registry.

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