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U <br />Table Z 05.3.0-3 Permit Area Culvert Designs, 030-081 & Associated Revised Pages 35-38 <br />Average Land Slope is characterized for each of the culverts C134-137. <br />Please clarify, for each of the above mentioned culverts, what slope that culvert lies at and <br />include that information in the culvert descriptions. <br />Response: Item Resolved <br />2. Please also include tailwater and maximum headwater (ft.) for Culverts 134-137. <br />Response: Item Resolved <br />3. Please explain how maximum headwater elevation is arrived at. <br />Response: Item Resolved <br />Table 2.05.3(3)-3 describes culverts C130 through C181. All culverts are described as CMP <br />(corrugated metal pipe) with a specified diameter. DRMS finds that culverts 134-137 are <br />described individually on pages 35 through 38 as HDPE (high density polyethylene pipes). Also, <br />Bureau of Public Roads attachments (pgs. 23-30) specify CMP (corrugated metal pipe) while <br />revised pages submitted call out HDPE pipe. <br />4. Please clarify culvert materials for said culverts and update table 2.05.3(3)-3 as needed. <br />Response: Item Resolved <br />Also included with this adequacy response package are materials revised in response to your <br />adequacy comments and a change of index sheet to ease incorporation of this material into the <br />permit document. If you have any questions regarding the enclosed adequacy review responses, <br />please contact Tony Tennyson at (970) 824-1232 or ttennyson(a <br />,tri state gt. ori. <br />Sincerely, <br />Daniel J. Casiraro <br />Senior Manager <br />Environmental Services <br />DJC:JS:der <br />Enclosures <br />cc: Frank Ferris (via email) <br />Chris Gilbreath (via email) <br />Jason Storey (via email) <br />Tony Tennyson (via email) <br />File: G474 -11.3(21)b-5 <br />AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER <br />A Touchstone Energy' Cooperative <br />