CURRENT RULEFederalEnvironmental / waste✓ Human reviewed

Where do your service-bay floor drains discharge?

EPA regulates motor vehicle waste disposal wells as Class V injection wells. New wells constructed after April 5, 2000 are banned nationwide; additional bans, permits, or closure obligations depend on the area and state. A service drain connected to a municipal sewer or qualifying off-site holding tank does not create this type of disposal well on that basis alone.

Quick check

Confirm whether drains lead to a sewer, holding tank, or underground disposal well; check with the UIC authority if a well may exist.

At a glance

JurisdictionFederal

TopicEnvironmental / waste

VerifiedOct 15, 2026

Review cadenceVerify during shop onboarding and whenever drains, wastewater handling, or the premises are modified.

When this applies

A service-area sink or floor drain may send oil-contaminated or other vehicle-service wastewater into a septic system, dry well, or another shallow underground disposal system rather than a sanitary sewer or holding tank.

Trace where every service-bay drain and sink discharges. If motor-vehicle waste may reach a septic system, dry well, or similar underground system, contact your state or EPA Underground Injection Control permitting authority to determine applicable permit, closure, or discharge requirements.

Official evidence

Source and verification

Official source: US EPA — Motor Vehicle Waste Disposal Wells ↗
Verified: Oct 15, 2026
Applies to: All shop types

Quick-reference compliance planning only; not legal advice or an exhaustive statement of every applicable Federal, state, or local rule. Always verify the official source.

Where do your service-bay floor drains discharge?

A service-area sink or floor drain may send oil-contaminated or other vehicle-service wastewater into a septic system, dry well, or another shallow underground disposal system rather than a sanitary sewer or holding tank.

Source and verification

Related Federal changes