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Scientists say Maui sewage injected into ocean damages coral

Updated: 
November 7, 2017 - 7:37pm

HONOLULU — Discharge from a sewage treatment facility in West Maui has been damaging the coral reefs off Kahekili Beach Park for years, according to a study by federal scientists.

The U.S. Geological Survey study found pollution is not only eroding the reef, but is also inhibiting new coral growth, the Honolulu Star-Advertiser reported .

Maui County spokesman Rod Antone, however, said on Friday that the findings contradict data from other studies that show the coral reef at Kahekili is getting healthier.

The question of whether coral reefs are being damaged by sewage from Maui County’s injection wells has been the subject of litigation and out-of-court negotiations for nearly a decade.

“Our results confirm how valuable nearshore coral reef ecosystems — the cornerstone of Hawaiian tourism, shoreline protection, and local fisheries — are affected by land-based sources of pollution that are also magnified by effects of coastal acidification,” according to the study.

The facility injects roughly 4 million gallons of treated sewage into the ground near the ocean each day.

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