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SepticWorkz technician in uniform inspecting a green septic control box on a residential lawn in Mullins, SC 29574

Septic Services in Mullins, SC 29574

Looking for professional septic services in the 29574 zip code area of Mullins, South Carolina? SepticWorkz provides licensed, insured septic tank pumping, inspections, repairs, and installations throughout Marion County. We follow all SCDES (formerly DHEC) regulations and deliver honest, upfront pricing on every job.

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Did You Know? — Marion County

Marion County is named for General Francis Marion, the Revolutionary War hero known as the "Swamp Fox." After a 26-mile chase through Carolina swamps, British Colonel Banastre Tarleton reportedly said, "As for this damned old fox, the devil himself could not catch him!" Marion's guerrilla tactics against the British are considered the foundation of American irregular warfare strategy.

Septic Service Pricing in Mullins 29574

ServiceStarting Price
Septic Tank PumpingCrust Buster agitation, hydro-vac, inspection included$599
Level 1 Septic InspectionVisual inspection, drain test, odor check$500
Level 2 Septic InspectionIncludes pumping, water-level check, backflow evaluation$750
Level 3 Septic InspectionFull inspection + inlet/outlet baffle installation$1,000
Septic Repairs24/7 emergency service availableCall for Quote
Warranty Program3-15 year maintenance plansFrom $199/yr

All prices are for standard service. Excavator access (+$250) and chemical treatment may apply. No hidden fees.

Why Mullins (29574) Homeowners Choose SepticWorkz

  • Licensed and insured septic professionals
  • Serving Mullins and all of Marion County
  • Septic tank pumping starting at just $599
  • Same day pumping & 24/7 emergency service
  • 3 to 15 year warranty maintenance programs
  • Crustbuster agitation for thorough cleaning — not just a pump-out
  • Real estate inspection specialists (3 levels from $500)
  • SCDES-compliant disposal at approved facilities

About Marion County — What Affects Your Septic System

SCDES Regulations

SCDES Septic Permit Requirements for Marion County

All septic system installations in Marion County require an SCDES permit under Regulation 61-56. The $150 site evaluation fee covers a soil and site assessment to determine system type and sizing. Minimum setbacks are 75 feet from private wells, 100 feet from public wells, 75 feet from streams, rivers, and ponds, 25 feet from drainage ditches, and 5 feet from property lines and buildings. Conventional trench systems are permitted where soil conditions allow; otherwise, alternative designs such as mound systems or alternative trench width/depth systems may be specified.

Source: SCDES Regulation 61-56

Soil Composition

Marion County Soil Types and Septic Performance

Marion County's upland soils are predominantly sandy loam of the Norfolk and Orangeburg series, which are well drained with moderate permeability and generally suitable for conventional septic drain fields. However, the county is flanked by the Great Pee Dee River on the west and the Little Pee Dee River on the east, and the wide river bottomlands between them contain poorly drained alluvial soils with high clay and organic content. These floodplain soils drain very slowly and typically cannot support conventional septic systems, requiring mound systems or connection to public sewer where available.

Source: USDA Web Soil Survey; NRCS Soil Series Classifications

Common Issues

River Bottomland and Clay Soils in Marion County

Marion County lies along the Great Pee Dee and Little Pee Dee Rivers, where low-lying bottomlands feature poorly drained, clay-heavy soils. These soils have very slow percolation rates, which means conventional drain fields can become saturated and fail, especially after periods of rain. Properties on higher ground may have better-draining sandy loam, but many parcels near the river floodplain require engineered alternative systems to function properly.

Source: USDA Soil Survey — Pee Dee Region; SCDES Site Evaluations

Proud Supporter of Local Youth Sports

SepticWorkz proudly supports the Mullins Auctioneers, the Palmetto Middle, and youth athletics across Mullins and Marion County. We believe in giving back to the communities we serve.

HSMullins AuctioneersMSPalmetto Middle

Schedule Septic Service in Mullins (29574) Today

Free estimates. Same day service available. Call now or fill out our contact form.

What People Are Saying

We were tired of dealing with a discount pumper who just wasn't getting the job done! Our septic system was backing up every 3 to 6 months. Finally, we called Septic Workz. They used the Crust Buster to get all the solids out and then added commercial chemicals to help balance our tank. Three years later, we still haven't experienced any backups!

Satisfied Customer,