#wastewater spill

The public is advised of an estimated 20,000-gallon wastewater spill that occurred between approximately 9:00 a.m. and 10:20 a.m. on Sept. 8, 2026, in the Waimea Wastewater Treatment Plant.

The County of Maui’s Department of Environmental Management reported that a wastewater spill of approximately 17,000 gallons occurred on Wednesday, Aug. 20, 2025 at 4554 Lower Honoapi‘ilani Highway, Nāpili.  Officials say the spill occurred due to a mechanical failure at the Nāpili pump station # 3. 

The public is advised to stay out if the coastal waters north of Māla Boat Ramp in West Maui due to a wastewater spill originating from the Lahaina Wastewater Pump Station.

The overflow was caused by heavy rains and sewer manholes being opened by the public to eliminate street flooding.

We’ve dug into our archives, and compiled a list of the most recent, reported, wastewater spills on Maui.

The discharge was larger than initial reports, with 68,000 gallons entering the ocean north of Kahului Harbor between Kanaloa Avenue and Linekona Street.

An estimated 566 gallons of wastewater overflowed from the line along Ani Street in Kahului at around 5:30 p.m. on Tuesday.

Thousands of gallons of wastewater overflowed during the construction of a new Kaanapali force main on Wednesday.   The spill was reported at 11:35 a.m. and was stopped immediately.  Approximately 1,500 gallons of the 10,600 gallons of wastewater flowed from the discharge piping, but the water did not enter the ocean. Officials with the County of […]

A third wastewater spill since Friday was reported in Kihei.  The latest incident occurred at around 11:45 Tuesday morning (May 19, 2009).   Approximately 933 gallons of wastewater overflowed when a suction connection broke while operators were disconnecting a pump at the Kihei Wastewater Reclamation Facility.  A small amount of the wastewater entered a storm drain […]