Environmental Protection

Puerto Rico Authority to Spend $195 M on 126 Drinking Water Plants

The Puerto Rico Aqueduct and Sewer Authority (PRASA) has agreed to implement major capital improvements and upgrades to resolve alleged longstanding violations of the Clean Water Act at 126 drinking water plants across the island and violations of the Safe Drinking Water Act at three others, the Justice Department and U.S. Environmental Protection Agency announced this week. Most of the communities served by the drinking water treatment plants that will be upgraded under the agreement are in low-income communities.

The agreement, filed in federal court in the District of Puerto Rico, requires PRASA to implement measures to properly handle harmful pollution from 126 drinking water treatment plants that discharge into Puerto Rico’s lakes, rivers and streams, some of which are sources of drinking water. The work required by the agreement, when fully implemented by PRASA, is estimated to cost more than $195 million.

PRASA also will pay a $1.02 million civil penalty and spend more than $2.5 million to improve the water quality of either Lake Toa Vaca or both Lake Toa Vaca and Lake Cidra. The consent decree replaces two prior agreements between PRASA and the federal government, one from 1995 and one from 2001. It provides for a comprehensive and integrated set of measures aimed at ending PRASA’s cycle of past violations.

EPA estimates that the agreement will reduce by 15 million pounds annually the amount of suspended solids discharged into Puerto Rico’s lakes, rivers and streams, some of which are sources of drinking water. In addition, discharges of residual chlorine will be reduced by an estimated 600,000 pounds per year and discharges of total phosphorous will be reduced by about 250,000 pounds per year.

Under the consent decree, PRASA will implement multiple capital improvement projects and other upgrades at 126 drinking water treatment plants and related systems over the next 15 years. PRASA will complete 291 short-, mid-, and long-term capital improvement projects, which will include the construction of 34 treatment systems at facilities that currently are discharging untreated sludge into local waterways, installation of flow meters and high-level indicators at all PRASA facilities, improvements to sampling locations, capacity evaluations at over 50 facilities, implementation of an island-wide preventive maintenance program and facility operator training.

PRASA’s efforts to improve the water quality of either Lake Toa Vaca or both Lake Toa Vaca and Lake Cidra will address the growing amount of nutrients in the lakes, both of which are drinking water sources for portions of Puerto Rico. As a supplemental environmental project, PRASA will set aside $2.2 million to design and construct an aeration system that will increase oxygen levels in the lakes and an additional $324,000 to operate and maintain the system. This project, when implemented, will enhance the condition of the aquatic ecosystem and restore the water quality of the lakes.

The consent decree, lodged in the U.S. District Court for the District of Puerto Rico, is subject to a 30-day public comment period and approval by the federal court.

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