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I <br /> <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />-5- <br /> <br /> First, MPCA staff would like to point out that a release of <br />leachate from the site is only expected to take place in case of a <br /> <br />failure of the liner. With proper design and operation, no liner <br /> <br /> failure is expected. <br /> <br /> In the event of a release of leachate to groundwater, it is <br />expected that the groundwater monitoring system would identify and <br />locate the release prior to its having a significant effect on the <br />marsh. Remedial measures, such as the installation of barrier <br />wells, could be taken to remedy the problem once. found. A release <br />of leachate which would affect Cedar Creek to any extent would <br />have to be very large or take place over a long period of time. <br />This is quite unlikely. No noticeable effect to the Rum River is <br />expected in case of a failure, even if it affects Cedar Creek, <br />considering the flow distance along Cedar Creek from the Site D to <br />the Rum River. All applicable water quality standards would be <br />required to be met in the marsh, Cedar Creek and the Rum River <br />during and after the life of the operation. <br /> <br /> The concern about possible affects on doWnstream receiving <br />waters will be relevant and must be addressed if this site is proposed <br />for an actual permit.' However, the MPCA staff believes that this <br />concern does not make the site intrinsically unsuitable for sani- <br />tary landfill use. <br /> <br /> <br />