GroundRosterChristopher Noll
| Name | Christopher Noll |
| Company | Keystone Consulting Engineers, Inc. |
| License number | 01749 |
| License type | On-Lot System Installer (DEP training-recognition list) |
| License status | DEP-recognized on-lot system installer; most recent training update 2020-03-09 (a training-recognition list, not proof of a currently active license) |
| Location | Bethlehem, Pennsylvania 18020 |
| Phone | (610) 554-4462 |
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What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
How to verify this license
We publish this listing exactly as it appears in Pennsylvania's official licensing records; we do not vouch for the business itself. Before hiring, look up license #01749 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: PA DEP Act 537 - On-Lot Sewage System Installer training-recognition list, last checked 2026-08-16. Verify at the official source.
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