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Marcia Talvitie <br />January 20, 2010 <br />Page 3 <br />removed. In accordance with Rule 4.05.9(2)(e) provide a demonstration that the water <br />from the pond will be safely removed in accordance with current, prudent, engineering <br />practices. Attachment 2.05.3(3)-20 should be certified by a registered professional <br />engineer. <br />7. Inconsistencies were noted in Attachment 2.05.3(3)-20 regarding principal and emergency <br />spillways for Pond 015. The text on pages 2 and 6 of the attachment indicate that there is no <br />embankment that could fail and no spillways are required. However, on the Stage Storage <br />Curve (page 9), the top of structure is labeled as 5572.00' and principal and emergency <br />spillways elevation are labeled at 5571.00' indicating that there is an embankment and there <br />are spillways. If there is an embankment then the provisions of Rule 4.05.9 Impoundments <br />applies to this structure. Please clarify the information contained in Attachment <br />2.05.3(3)-20 regarding principal and emergency spillways for Pond 015, otherwise <br />revise the attachment to include all of the permit information required by Rule 4.05.9 <br />for this structure. <br />8. The information presented in Attachment 2.05.3(3)-7 Small Area Exemptions is confusing <br />and needs to be further clarified. On page 2 of the revised attachment, WFC states that "The <br />2009 permit revision eliminates all remaining SAE's with the exception of the topsoil <br />stripping area ahead of the pit." This contradicts with text on pages 3 and 4 of the <br />attachment where WFC indicates that some of the SAE's are existing and some are planned. <br />Further none of the SAEs could be located on a map including SAE#6 as stated on page 4 of <br />the attachment. Please clarify the discrepancies identified in Attachment 2.05.3(3)-7 <br />and submit revised pages and maps accordingly. <br />Let me know if you have questions or require additional information. <br />C: Sandy Brown