Tuesday, December 29, 2009

EPA Releases ELG Standard for Storm Water


For the first time ever, the U.S. EPA has set a numerical standard for sediment leaving construction and development sites.  The limit has been set at 280 NTUs (Nephelometric Turbidity Units) at the outfall from Construction and Development sites as a daily average.

This limit does not apply on days where the site receives the equivalent rainfall of a 2 year 24 hour storm or greater.

This rule goes into effect for sites where 20 acres or more are disturbed at any one time and in 2014 for sites where 10 acres or more are disturbed at any one time.  This rule will be enforced by the States in most cases and the States can adopt the rules early and can make them more strict.

We will stay on top of this issue.

Feel free to contact us if you have any questions.

http://www.landmarkjcm.com/

302-323-9377 x143 Jim or x141 Keith

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