David H Merriam

Certified septic pumping company · Warwick, RI

Certification status

Listed in the Rhode Island DEM licensed OWTS installers, designers, and septage transporters as of 2026-07-23 — verify current status at the official source

Certification categories

Installer

License / registration #

L0658

Location

D.H. Merriam Landscaping P.O. Box 8794, Warwick, RI, 02888

Phone (from public registry)

(401) 524-2417

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

What septic pumping certification means

Rhode Island DEM licenses onsite wastewater treatment system (OWTS/septic) installers and designers (including Class IV soil evaluators), and separately permits septage waste transporters, through its Office of Water Resources.