GroundRosterElvin Schrock & Sons IncLicensed
| Name | Elvin Schrock & Sons Inc |
| License number | 4298B, 4298E3, 5941B, 5941F, 4298I, 5941E4, 5941I |
| License type | Class B (Standard-Designer) · Class E (System Contractor) · Class F (Liquid Waste) · Class I (Construction Inspector) |
| License status | Approved |
| Based in | Greenwood, Delaware 19950 |
| Phone | (302) 349-4384 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Design: licensed to size and lay out a septic system for a specific site and soil condition.
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
- Pumping / cleaning: licensed to pump out and clean septic tanks, service them, and haul the waste.
- Construction inspection: licensed to inspect a septic system as it is built, before it is covered over.
How to verify this license
We publish the license details exactly as they appear in Delaware's official licensing records; we do not vouch for the business itself. Before hiring, look up license #4298B, 4298E3, 5941B, 5941F, 4298I, 5941E4, 5941I directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Delaware DNREC - licensed on-site wastewater treatment and disposal system licensees, last checked 2026-08-16. Verify at the official source.
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