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Archives for June 2020

Worsening drought forces state of emergency in Puerto Rico

June 30, 2020

(July/ Editor Comments:  This could happen in Hawaii!!  Puerto Rico is roughly 1/2 the size of all the Hawaiian islands combined with double the population.  Like Hawaii, Puerto Rico’s options are pretty limited in a time of water scarcity although it is located closer to the mainland.)
By DÁNICA COTO; SAN JUAN, Puerto Rico (AP) — Puerto Rico’s governor on Monday declared a state of emergency as a worsening drought creeps across the U.S. territory amid a coronavirus pandemic.

Starting July 2, nearly 140,000 clients, including some in the capital of San Juan, will be without water for 24 hours every other day as part of strict rationing measures. Puerto Rico’s utilities company urged people to not excessively stockpile water because it would worsen the situation, and officials asked that everyone use masks and maintain social distancing if they seek water from one of 23 water trucks set up across the island.

“We’re asking people to please use moderation,” said Doriel Pagán, executive director of Puerto Rico’s Water and Sewer Authority, adding that she could not say how long the rationing measures will last.

Fernanda Ramos, a meteorologist with the U.S. National Weather Service in San Juan, said ongoing dry conditions will be interrupted by thunderstorms forecast to affect the island on Wednesday and Thursday.

“However, we are not expecting enough rain… to solve the problem we’re seeing,” she said.

More than 26% of the island is experiencing a severe drought and another 60% is under a moderate drought, according to the U.S. Drought Monitor. Water rationing measures affecting more than 16,000 clients were imposed earlier this month in some communities in the island’s northeast region.

Gov. Wanda Vázquez said 21 of 78 municipalities are affected by the severe drought while another 29 by the moderate drought. An additional 12 municipalities face abnormally dry conditions. The worst of the drought is concentrated in Puerto Rico’s southern region, which continues to be affected by aftershocks following a 6.0-magnitude earthquake that hit in early January and caused millions of dollars in damage.

An administrative order signed Monday prohibits certain activities in most municipalities including watering gardens during daylight hours, filling pools and using a hose or non-recycled water to wash cars. Those caught face fines ranging from $250 for residents to $2,500 for industries for a first violation.

Vázquez’s announcement comes amid criticism of her administration for not dredging reservoirs, which would eliminate sediment and avoid excess loss of water. Pagán said the utilities company has been in conversation with the U.S. Federal Emergency Management Agency since Hurricane Maria about a $300 million dredging investment. She blamed the lengthy process on the number of studies and analysis needed and that require FEMA’s approval.

To see the rest of the article see this link

Filed Under: Climate Change, Rainfall, Water Conservation, Water Usage

UH research essential in federal Clean Water Act ruling

June 10, 2020

June, Cindy Knapman/UH: The U.S. Supreme Court ruled in April that the federal Clean Water Act, which regulates the discharge of pollutants into the nation’s surface waters, including lakes, rivers, streams, wetlands and coastal areas, must also consider pollutant inputs to those waters by groundwater. This ruling was based on scientific findings from researchers at the University of Hawaiʻi at Mānoa School of Ocean and Earth Science and Technology (SOEST).

Over the last decade, Maui coral reefs have experienced a decline in health and overgrowth by invasive algae. Concerns arose that submarine groundwater discharge was carrying nutrients from wastewater infrastructure to nearby coral reefs, contributing to this decline. However, the quantity and locations of submarine groundwater discharge along Maui’s coasts were poorly known. It was also unclear whether the groundwater carried high concentrations of nutrient or other pollution.

SOEST researchers from the Department of Earth Sciences were awarded grants from the U.S. Environmental Protection Agency and U.S. Army Engineer Research and Development Center to investigate the hydrological connections between deep injected effluent from a municipal wastewater treatment plant on Maui and nearby coastal waters.

The researchers applied novel techniques including using aircraft to collect thermal infrared imagery to map oceanic inputs and the extent of effluent discharge, deployed scuba seafloor mapping, analyzed groundwater and algae samples to look for isotopic signatures unique to wastewater, used radioisotopes to help establish flow rates, and deployed tracer dyes to track rates and paths of the injected wastewater effluent to Maui’s coastal waters. The tracer dye test provided unequivocal evidence that the injected wastewater travels through groundwater to the coastal ocean.

Lahaina, Maui map
Lahaina map showing groundwater seeps, heat signature of effluent plume. Credit: Glenn, et al., 2013

“This was a very impactful scientific study with regard to protecting the environment, and with far-reaching socio-economic and sustainability implications for the State of Hawaiʻi and the nation as a whole. Our high-caliber UH team was glad that we could make it happen,” said Craig Glenn, lead author of the study and professor of Earth Sciences at SOEST.

The research team conclusively demonstrated that millions of gallons per day of deeply injected treated sewage effluent from the West Maui wastewater reclamation facility are being added to Maui’s adjacent ocean waters.

for the rest of the article see here

Filed Under: Water Contamination, Water Economics, Water Pollution, Water Rights

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This blog focuses on shaping water strategies for the Hawaiian Islands.

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