Site civil design, permitting and due diligence for people who build.
WCH Consulting is a licensed civil engineering firm on Johns Island, SC. I take sites from feasibility through sealed construction plans and the permits that let you build them, in South Carolina, Georgia and North Carolina.
What I do
Design and permitting for the land side of a project. Plans are produced in Civil 3D, drainage is modeled in HydroCAD, and every set leaves with a PE seal in the state it's built in.
Site civil design
- Site plans, grading and drainage
- Stormwater management and calculations
- Water, sewer, force main and grinder pump systems
- Erosion and sediment control plans
- Driveways, turn lanes and road improvements
Permitting
- SCDOT and GDOT encroachment permits
- SCDES NPDES, water and sewer construction permits
- County and municipal stormwater and site plan approvals
- Utility provider approvals (water and sewer)
- Coastal zone and floodplain submittals
Due diligence and feasibility
- Zoning and code review before you buy or design
- Lot-split, lot-fit and density studies
- Concept site plans and parking layouts
- Drainage and cut/fill analysis for plat approval
- Change-of-use and site compliance reviews
Subdivision engineering
- Preliminary and final plats
- Road, ditch and storm network design
- Lot grading and pad design
- Amenity centers and common areas
- Landscape and buffer plans
Builder support
- Lot-specific grading and drainage certifications
- Cut/fill worksheets and V-Zone no-adverse-impact letters
- Plan review and as-builts
- Standalone landscape and fence permits
- Fast turnaround on repeat work
For design professionals
- PE-sealed plans in SC, GA and NC
- CAD production of SCDOT and GDOT format sheets
- Drainage and utility calculations for your set
- Overflow capacity for surveyors, architects and engineers
Builders, developers and the professionals who serve them
Most of my work is repeat work for land managers at production builders, land developers, and surveyors and architects who need a PE on the team.
- Production and custom builders. Lot grading, driveway encroachments, amenity sites, landscape plans and the stream of lot-level certifications a division needs to keep closing.
- Land developers and investors. Feasibility first, then subdivision design and permitting that follows the AHJ's own checklist.
- Surveyors, architects and engineering firms. Sealed civil sheets for your plat or building package, in whichever of the three states the job is in.
- Commercial owners and contractors. Change-of-use reviews, site plans and utility connections for small commercial sites.
What the work usually looks like
Subdivisions
- Preliminary and final plats
- Road, ditch and storm network design
- Lot grading, pads and engineered fill
- Amenity sites, buffers and landscape plans
Lot-level builder support
- Driveway encroachment permits in batches
- Cut/fill worksheets and grading certifications
- Coastal V-Zone no-adverse-impact letters
- Plan review, as-builts, fence and landscape permits
Small commercial
- Change-of-use and site compliance reviews
- Site, parking, drainage and utility plans
- Water and sewer demand calculations
- Pre-application meetings with the City or County
Coastal and infill residential
- Grading and drainage on tight lots
- Septic-to-sewer connections, grinder pumps and force mains
- Water main extensions and service permits
- State DOT access on primary routes
Feasibility before purchase
- Zoning, overlay and code read on a parcel
- Lot-split and density tests
- Concept layouts with the AHJ's numbers behind them
- Written findings you can take to a lender or seller
Partner work for design professionals
- Sealed civil sheets for a surveyor's plat or an architect's set
- SCDOT and GDOT format plan production
- Comity seal across SC, GA and NC
- Overflow capacity on your schedule
Agencies I've permitted through
Licensed in three states
| South Carolina | PE No. 32627 · Firm Certificate of Authorization No. 7631 |
|---|---|
| Georgia | PE No. PE056708 · Firm Certificate PEF009548 |
| North Carolina | PE No. 063548 · WCH Engineering, PLLC, NCBELS P-3588 |
| Small business | SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB) and Veteran-Owned Small Business (VOSB). Registered in SAM.gov. |
| Insurance | Professional liability $1M per claim · General liability $1M / $2M · Workers' compensation |
Tools
Autodesk Civil 3D, HydroCAD, Bluebeam Revu. Plans are built on survey, not GIS. Calculations come with the model files when you want them.
How I work
One engineer, start to finish. You get the person who designed it on the phone, the same day. Scope is written against the agency's own checklist so the set gets reviewed once.
SBA Certified · SDVOSB · VOSBWilliam C. Hay, P.E.
Principal · WCH Consulting, LLC
I founded WCH Consulting in 2020 to do site civil work the way builders and developers actually need it done: fast, sealed, and reviewed by the person who drew it. I'm a licensed professional engineer in South Carolina, Georgia and North Carolina.
I also serve as a civil engineer in the Air Force Reserve with the 622nd Civil Engineer Flight. WCH Consulting is an SBA-certified service-disabled veteran-owned small business.
Tell me about the site.
Send the address or parcel number and what you want to build. I'll come back with what the jurisdiction will require and a scope to get there.
WCH Consulting, LLC
PO Box 11, Johns Island, SC 29457