---
title: "Underground Designs LLC, Pequot Lakes, MN | MN Home Sale Pros"
description: "Underground Designs LLC: Septic (SSTS) inspection in Pequot Lakes, MN. Licence details, contact and quotes."
canonical: https://mnhomesalepros.com/firms/underground-designs-llc-sl2951/
---

# Underground Designs LLC

* Septic (SSTS) inspection
* Pequot Lakes, MN (Crow Wing County)
* Phone: (218) 831-3980
* Email: sethgravdahl@gmail.com
* Address: 10199 Ossawinnamakee Rd, Pequot Lakes, MN 56472
* MPCA SSTS licence L2951: Inspector (exp. 2028-07-02)
* Also licensed: Designer, Installer, Pipelayer
* bonded · insured

Get a quote: https://mnhomesalepros.com/get-quotes/?firm=SL2951

Source: https://services.pca.state.mn.us/api/v1/ssts/licensed-businesses?format=json, retrieved 2026-10-12. Claim / correct: https://mnhomesalepros.com/list-your-business/?id=SL2951