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RUBS Billing Method for Apartments in Mount Pleasant, South Carolina

Last reviewed by NES Editorial · September 2026

RUBS (Ratio Utility Billing System) divides a property's master water and sewer bill among residents by a fair formula. Here is how it works in Mount Pleasant and what the rules require.

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RUBS stands for Ratio Utility Billing System, a formula that divides a property’s master utility bill among residents. NES sets up RUBS for apartment communities, condominiums, and mobile home parks across Mount Pleasant and the Charleston area, and where RUBS is not the right fit we install submetering instead, all handled in-house since 1968.

Yes. RUBS billing is allowed in Mount Pleasant, South Carolina.

Residents are billed by a fair formula and never more than the master bill, and NES handles it for you.

How RUBS works
  • Fair allocation formula

    RUBS divides the property's master utility bill among units by occupancy, square footage, or a blend that fits the property.

  • No submeters required

    RUBS works in older buildings where meters cannot be added, so it is fast and low cost to start.

  • Capped at the master bill

    Residents are billed only for their share, never more than the property's actual utility cost, and the bill is itemized.

Rules & compliance

Is RUBS billing allowed in Mount Pleasant?

Governing rule: SC PSC & ORS oversight · SC PSC / ORS

South Carolina RUBS rules

  • RUBS for water and sewer is allowed in South Carolina, and a 2026 Court of Appeals decision upheld it: owners who allocate water and sewer costs at cost by occupancy or square footage are not public utilities (Zito v. Strata Audubon)
  • Electric and gas RUBS and submetering are not allowed in South Carolina, so allocation billing here covers water and sewer
  • A few cities set their own limits: Greenville and West Columbia do not allow RUBS or submetered water billing inside city limits, and Rock Hill requires city approval
  • Residents are billed by a fair allocation formula, and the total cannot exceed the master utility bill
  • The lease should allow utility billing, and water and wastewater service is overseen by the Public Service Commission and the Office of Regulatory Staff
  • Where exact, per-unit billing is the goal, submetering is the alternative

RUBS in Mount Pleasant

  • Water is provided by Mount Pleasant Waterworks, and electricity by Dominion Energy South Carolina
  • RUBS for water and sewer is allowed in Mount Pleasant, with residents billed by a fair formula and never more than the master utility bill
  • Electric and gas RUBS are not allowed in South Carolina
  • For exact, per-unit billing, water submetering is available as an alternative, and NES installs and bills either way
  • NES verifies the rules for your exact address before we start

Official sources: SC Office of Regulatory Staff · Public Service Commission of SC

General information only, not legal advice; NES assumes no liability for reliance. Confirm current rules with the SC PSC / ORS or a qualified attorney.

RUBS vs submetering: which fits Mount Pleasant?

RUBS estimates each unit's share with a formula. Submetering measures each unit's actual use with a meter. RUBS is faster and lower cost to start and works where meters cannot be added; submetering is more precise and is required in some places. NES does both and will recommend the one that fits your property and the local rules.

Compare submetering

Submetering in nearby South Carolina cities

NES installs and runs submetering across South Carolina. See the rules and results for other communities we serve.

Common questions

RUBS billing in Mount Pleasant

RUBS stands for Ratio Utility Billing System. It divides a property's master utility bill among residents using a fair formula, usually based on the number of occupants, the unit's square footage, or a blend of both. No submeters are required, which makes it a fast, low-cost way to stop absorbing utility costs. NES sets up the formula, sends resident bills, and supports residents in-house.

See what your Mount Pleasant property can recover.

Send us your master-meter bills and unit count. We’ll model RUBS or submetering on your actual property and reply within one business day with a clear, no-obligation estimate.

  • No-obligation custom proposal
  • Compliance check included
  • RUBS or submetering, your choice
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