Chesapeake Bay quality shows slight improvement
ANNAPOLIS, Md. — The health of the Chesapeake Bay improved slightly last year, with underwater grasses the only area suffering a setback, according to an assessment released on Wednesday by the Chesapeake Bay Foundation. The report sounded cautious optimism for a decades-old effort now under tougher federal guidance.
Bay grasses were hurt by high water temperatures in the lower bay and heavy rains that washed sediment and pollution into local waterways. All other indicators either improved or stayed the same, with crabs, oysters and oxygen levels in bay water all seeing gains.
The foundation gave the bay an overall score of 32 out of 100, up one point over the last report in 2010 and four points since 2008.
“The bay is still dangerously out of balance, the rivers and streams are still impaired, but it's getting better and that's the good news,” Chesapeake Bay Foundation President William C. Baker said, adding that the new federally led bay restoration strategy is beginning to work.
The strategy being led by the Environmental Protection Agency sets pollution limits for everyone in the six-state bay watershed. Farmers and agriculture interests are concerned because farm runoff is the single largest source of bay pollutants, according to the EPA's Chesapeake Bay model. And while agriculture has cut its pollution, the strategy calls for even more reductions from all sectors. County officials have also expressed cost concerns.
The foundation said its 2013 priorities include working with lawmakers in Maryland, Pennsylvania and Virginia to make sure money is available for local communities and to identify cost-effective strategies.
LeeAnn Murray, the Chesapeake Bay Foundation's acting director for Pennsylvania, said the state has made progress, but nearly a quarter of its streams and rivers are impaired. Pennsylvania priorities include helping local governments cut storm water runoff and farmers reduce agricultural pollution.
The bay watershed also covers parts of Delaware, New York and West Virginia.
The report looked at 13 indicators, of which five improved, seven stayed the same, and only bay grasses declined.
The bay's striped bass population got the best score at 69, unchanged from 2010. Oxygen levels in bay water registered the biggest improvement, increasing six points, but still only received 25 out of a possible 100 points.
That was in spite of big storms that led to predictions of large low oxygen areas known as “dead zones,” Baker said.
“The bay is showing a certain resilience which we haven't seen in many years,” Baker said. “That gives me pause, that gives me reason to be optimistic.''
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