Charles County, Maryland · septic · last verified 2026-09-08
00341
Dave's Pumping / Middleton Backhoe
Middleton Backhoe Srv./Dave's Pumpin
File
- Street
- 4520 Renner Road
- City / town
- Waldorf
- County
- Charles
- State
- MD
- ZIP
- 20602
- Phone
- 301-643-1340
- Website
- —
- License number
- 00341
- Board
- Maryland Department of the Environment / MD State Board of On-Site Wastewater Professionals (OSDS Registered Individuals); Charles County Health Department Environmental Health (county installer/scavenger street roster not published online)
- Status
- Named with a Charles County street on the MDE On-Site Wastewater Professionals / OSDS Registered Individuals list (List Updated September 2, 2026; pdfinfo CreationDate/ModDate Wed Sep 2 2026 UTC). Registration number printed on that roster. Charles County Health Department Environmental Health requires an MDE wastewater-provider number on septic installation permit applications and points applicants to the MDE provider list. The perc landing link “Septic contractors For Digging Percolation Test Holes” opens https://charlescountyhealth.org/environmental-health-2/ground-percolation-septic/ — a stub with no name table. Percolation Testing in Charles County (pdfinfo CreationDate Wed Jan 14 2026 UTC; footer 1/2026) does not print a contractor list. Private Consultants memorandum (March 23, 2018) lists perc-test consultants, not septic installers or scavengers. No fetchable county installer or scavenger street roster this pass — county numbers are not invented. Seeded rows claim septic_install from the printed MDE registration; county scavenger (pumping) numbers are not invented.
- Expires
- 2027-12-31
- License contact
- Richard A. Middleton
- Last verified
- 2026-09-08
- COI on file
- no
Services claimed from opened sources
- septic install (septic_install)
Sources opened
- https://mde.maryland.gov/programs/water/BayRestorationFund/OnsiteDisposalSystems/Documents/Onsite%20Systems/OSDS-Registered-Individuals.pdf
- https://charlescountyhealth.org/percolation-sewage-bay-restoration/
- https://charlescountyhealth.org/environmental-health-2/ground-percolation-septic/
- https://charlescountyhealth.org/wp-content/uploads/2026/01/Percolation-Testing-in-Charles-County.pdf
- https://charlescountyhealth.org/wp-content/uploads/2025/07/2b-Septic-System-Installation-Permit-Application.pdf
- https://charlescountyhealth.org/wp-content/uploads/2022/01/PrivateConsultants.pdf
File notes
MDE OSDS Registered Individuals (List Updated September 2, 2026): registration 00341, Middleton Richard A, 4520 Renner Road, Waldorf MD 20602, [email protected], 301-643-1340, company column prints Middleton Backhoe Srv./Dave's Pumpin (PDF-truncated); expires 12/31/2027. Same street also prints registration 00583, Mcalwee Andrew A, company column Dave's Pumping / Middleton Backhoe S (also truncated), phone 301-645-4724, expires 12/31/2026 — one row per company street; 00583 not separately listed. Display name uses the words printed on the two truncated company columns; missing letters are not invented. ArcGIS World Geocoder matched 4520 Renner Road, Waldorf to Charles County ZIP 20602 (score 100, PointAddress). Company name includes pumping; no county scavenger number is printed — pumping number not invented.