In the news: EPA Releases First-Ever Baseline Study of U.S. Lakes

Posted December 23rd, 2009 in Great Lakes Data, Healthy Waters, News

From the U.S. EPA:

The U.S. Environmental Protection Agency today released its most comprehensive study of the nation’s lakes to date. The draft study, which rated the condition of 56 percent of the lakes in the United States as good and the remainder as fair or poor, marked the first time EPA and its partners used a nationally consistent approach to survey the ecological and water quality of lakes. A total of 1,028 lakes were randomly sampled during 2007 by states, tribes and EPA.

“This survey serves as a first step in evaluating the success of efforts to protect, preserve, and restore the quality of our nation’s lakes,” said Peter Silva, assistant administrator for EPA’s Office of Water. “Future surveys will be able to track changes in lake water quality over time and advance our understanding of important regional and national patterns in lake water quality.”

The National Lakes Assessment reveals that the remaining lakes are in fair or poor condition. Degraded lakeshore habitat, rated “poor” in 36 percent of lakes, was the most significant of the problems assessed. Removal of trees and shrubs and construction of docks, marinas, homes and other structures along shorelines all contribute to degraded lakeshore habitat.

Nitrogen and phosphorous are found at high levels in 20 percent of lakes. Excess levels of these nutrients contribute to algae blooms, weed growth, reduced water clarity, and other lake problems. EPA is very concerned about the adverse impacts of nutrients on aquatic life, drinking water and recreation. The agency will continue to work with states to address water quality issues through effective nutrient management.

The survey included a comparison to a subset of lakes with wastewater impacts that were sampled in the 1970s. It finds that 75 percent show either improvements or no change in phosphorus levels. This suggests that the nation’s investments in wastewater treatment and other pollution control activities are working despite population increases across the country.

The results of this study describe the target population of the nation’s lakes as a whole and are not applicable to a particular lake. Sampling for the National Rivers and Streams Assessment is underway, and results from this two-year study are expected to be available in 2011.

IISG Instagram

This Halloween, we’re diving into the eerie depths of the Great Lakes.

Each lake has its own spooky story:

🕯️ Lake Superior hides ghost ships beneath its icy waves...
🦴 Lake Michigan whispers tales of vanishing beaches…
🌉Lake Huron hides prehistoric hunting camps on a lake bottom ridge...
🧪 Lake Erie bubbles with algal blooms that glow like potions...
🦠 Lake Ontario was first to host strange creatures like the blood sucking sea lamprey.

Never fear, we have resources to help you make these fascinating topics less frightening at iiseagrant.org/education.

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Open post by ilinseagrant with ID 18068749643060732
This Halloween, we’re diving into the eerie depths of the Great Lakes.Each lake has its own spooky story:🕯️ Lake Superior hides ghost ships beneath its icy waves...🦴 Lake Michigan whispers tales of vanishing beaches…🌉Lake Huron hides prehistoric hunting camps on a lake bottom ridge...🧪 Lake Erie bubbles with algal blooms that glow like potions...🦠 Lake Ontario was first to host strange creatures like the blood sucking sea lamprey. Never fear, we have resources to help you make these fascinating topics less frightening at iiseagrant.org/education.

IISG is seeking a talented and passionate person to join our team as a research & reporting administrator. This is an exciting leadership opportunity for someone interested in managing a competitive research portfolio and leading our annual reporting process to make a real impact on the health and vitality of our Great Lakes ecosystems and communities.

The successful candidate will be responsible for overseeing our research competitions, spearheading data collection and reporting for our ~$5 million program, and supervising a small team of dedicated staff.

Interested? Learn more at the link in bio.

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Open post by ilinseagrant with ID 17881001997406832
IISG is seeking a talented and passionate person to join our team as a research & reporting administrator. This is an exciting leadership opportunity for someone interested in managing a competitive research portfolio and leading our annual reporting process to make a real impact on the health and vitality of our Great Lakes ecosystems and communities. The successful candidate will be responsible for overseeing our research competitions, spearheading data collection and reporting for our ~$5 million program, and supervising a small team of dedicated staff.Interested? Learn more at the link in bio.
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