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Mr. Kent Gorham <br />May 13, 2011 <br />Page 4 <br />the annotation "Cirbella Canyon " which should be labeled "Ciruela Canyon ". Please correct <br />these minor errors as noted. <br />NECC Response: Legend, spelling correction and monitoring well symbols added. <br />DBMS: The monitoring wells are not annotated on Map 8 as monitoring wells in accordance <br />with the legend. Please change the well symbol annotation and use the exact name of the <br />well on the map as is used in Table 27 and in the permit text narrative. <br />NECC Response: NE-1-10, NE-6-10a and NE-6-10b have been added as monitoring wells to <br />Map 8. <br />23. DRMS: Please provide a revised version of Map 1, Surface Ownership showing the TR-56permit <br />boundary as described by information submitted under Rule 2.03, legal description of the permit <br />boundary (question #1 of this letter). <br />NECC Response: Map 1 permit boundary has been added. <br />DBMS: Response partially accepted. The Division questions the surface ownership by the <br />DOW for lands north of Highway 12 and east of the RDA as indicated on Map 1. Please check <br />this ownership and correct Map 1 if necessary. <br />NECC Response: An ownership label was misplaced on Map 1. The DOW does not own lands <br />north of Highway 12 in the RDA area. Corrected Map 1 is included with this submittal. <br />24. Please provide Map 2 Coal Ownership at a scale of 1 inch =1500 feet to match the scale of the <br />Map 1 Surface Ownership. <br />NECC Response: No response to this question was provided. <br />DBMS: Please respond to this question. <br />NECC Response: Instead of changing the scale of Map 2 to match the scale of Map 1, with <br />DRMS's permission, Map 1 was changed to match the scale of Map 2 (1 inch = 1,000 ft). Map 1 <br />and Map 2 are at the same scale with better readability on Map 1. <br />28. DRMS: For all structures to be undermined, limited monitoring of subsidence monuments is <br />required for each of those structures. The proposed plan refers to monument monitoring at gas <br />well locations in minimal detail regarding location and position, monitoring frequency, the start <br />and end of the monitoring period, etc. Please provide more detail in Exhibit 24 concerning the <br />use of subsidence monuments at each structure to be undermined. <br />NECC Response: Subsidence monument locations have been added to Figure 19. <br />29. DRMS: On page 2.04-11c (1/10/11) it appears that the first two sentences needed to be deleted <br />to flow with existing and revised text. Please review and correct as necessary. <br />NECC Response: Page 2.04-11c has been modified to delete repeated text from 2.04-11 b. <br />Agapito Associates, Inc.