MAWSS Responds to 56,250-Gallon Sewer Overflow

A defective air release valve caused wastewater to spill into Rabbit Creek at Rangeline Road.

Updated on Nov. 8, 2026 in Current Conditions

MAWSS Responds to 56,250-Gallon Sewer Overflow

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The Mobile Area Water and Sewer System (MAWSS) responded to a sanitary sewer overflow at 5480 Rangeline Road on November 6. Approximately 56,250 gallons of wastewater overflowed into Rabbit Creek.

Why it matters

Untreated or partially treated sewage reaching a local waterway raises public health and environmental concerns for Mobile residents who live near or use Rabbit Creek. The incident also highlights how a single defective component can release large volumes of wastewater before it reaches a treatment plant.

Approximately 56,250 gallons of wastewater entered Rabbit Creek after a defective air release valve failed at 5480 Rangeline Road. The report does not specify the duration of the discharge or whether downstream water testing has been conducted.

The players

Mobile Area Water and Sewer System (MAWSS)

MAWSS is the public utility that operates water and sewer infrastructure serving Mobile, Alabama, and responded to the overflow.

The details

MAWSS crews repaired the air release valve responsible for the overflow and are taking steps to prevent further overflows at the location. The overflow was reported by a MAWSS employee, and untreated or partially treated sewage left the sanitary sewer system before reaching a wastewater treatment plant.

November 6, 2026: MAWSS responds to the sanitary sewer overflow at Rangeline Road.

Seasonal Patterns

Sanitary sewer overflows caused by failed air release valves are a mechanical failure mode in wastewater collection systems, distinct from the weather-driven surges that often cause overflows during heavy rain. This incident occurred in early November, a period not typically associated with peak rainfall-driven sewer stress in the Mobile region.

Residents near Rabbit Creek should avoid contact with the water until local officials report on its condition. Anyone who notices unusual odors, discoloration, or dead fish near the creek should report it to MAWSS or the Mobile County Health Department.

The takeaway

A single failed valve can release tens of thousands of gallons of sewage into a creek, so reporting unusual conditions near waterways quickly helps utilities respond. Staying informed about advisories from the Mobile County Health Department is the most practical step for nearby residents.