Heavy Rains Cause Temporary Discharge of Partially Treated Wastewater at Sandy Beach

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American Water (NYSE: AWK), through Hawaii American Water, reported a temporary discharge of about 717,000 gallons of partially treated wastewater from its Sandy Beach outfall after a power outage linked to Tropical Storm Lala. Discharge occurred from about 3:45 p.m. to 6:30 p.m. HST on August 16, 2026, when generator power was restored. As a precaution, warning signs are posted along the affected shoreline, and the public is advised to avoid contact with water in posted areas until the Hawaii Department of Health authorizes sign removal.

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Discharge stopped after generator power was restored following Hurricane Lala outage 

HONOLULU, Aug. 17, 2026 /PRNewswire/ -- Hawaii American Water reports that approximately 717,000 gallons of partially treated wastewater were discharged through the company's outfall at Sandy Beach following a power outage associated with Tropical Storm Lala.

The discharge began yesterday at approximately 3:45 p.m. HST. Hawaii American Water crews responded, and generator power was restored at approximately 6:30 p.m. HST, stopping the discharge. The facility returned to utility power at approximately 9 p.m. HST on August 16, 2026.

As a precaution, the company has posted warning signs along the affected shoreline. The public should avoid contact with the water in posted areas until further notice. The signs will remain in place until the Hawaii Department of Health advises that they may be removed.

About Hawaii American Water
Hawaii American Water, a subsidiary of American Water (NYSE: AWK) with approximately 15 dedicated employees, provides high-quality wastewater services to approximately 30,000 people.

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SOURCE American Water

FAQ

What happened at Sandy Beach involving American Water (NYSE: AWK) on August 16, 2026?

A power outage caused a temporary discharge of partially treated wastewater at Sandy Beach. According to Hawaii American Water, about 717,000 gallons were released from 3:45 p.m. to 6:30 p.m. HST, until generator power stopped the discharge and utility power was later restored.

How much wastewater was discharged by Hawaii American Water’s Sandy Beach facility (AWK) after Tropical Storm Lala?

Approximately 717,000 gallons of partially treated wastewater were discharged. According to Hawaii American Water, the release occurred through the company’s outfall at Sandy Beach following a power outage associated with Tropical Storm Lala, and it was halted once generator power was restored later that afternoon.

Is the water at Sandy Beach safe after the Hawaii American Water (AWK) discharge on August 16, 2026?

The company advises the public to avoid contact with posted shoreline areas. According to Hawaii American Water, warning signs remain in place as a precaution and will stay until the Hawaii Department of Health confirms conditions are safe and authorizes their removal.

What actions did Hawaii American Water (AWK) take after the Sandy Beach wastewater discharge?

The company restored generator power to stop the discharge and returned to utility power later that evening. According to Hawaii American Water, it also posted warning signs along the affected shoreline and will keep them up until cleared by the Hawaii Department of Health.

When did the Sandy Beach wastewater discharge linked to AWK’s Hawaii American Water start and stop?

The discharge began around 3:45 p.m. HST on August 16, 2026, and stopped around 6:30 p.m. HST. According to Hawaii American Water, generator power was restored at 6:30 p.m., and utility power returned at about 9 p.m. that evening.