DELTA MARSH 



Seismic Preexploratlon 

 General . 



D-IM Prior to initiating any field work, permittee shall meet with 

 the land manager and provide specifications of the operation 

 including, but not limited to: (1) maps showing locations of 

 shot lines and holes, routes of access and travel, and equip- 

 ment storage areas; (2) information concerning sizes, types, 

 and numbers of equipment to be used; and (3) a time schedule. 

 The permittee shall agree to a reasonable adjustment of schedule 

 or alignment of shot lines in order to minimize the disturbance 

 of water flows, critical plant assemblages, unique natural areas, 

 important wildlife areas, or other desirable ecological features. 

 All activities are confined to those areas as finalized on the 

 attached maps. 



D-2P Permittee shall report in writing to the land manager unantic- 

 ipated damages to waterflow regimes, vegetation, wildlife, and 

 all other physical, biological, or chemical elements of the 

 refuge. At the option of, and in a manner determined by, the 

 land m.anager, the damages will be repaired to his satisfaction 

 immediately following completion of the survey. All costs are 

 to be borne by the permittee. 



D-3P Permittee will have fire suppression and controlling equipment 

 approved by the land manager on the site at all times. At signs 

 of fire, permittee will expend manpower to extinguish blaze. 



Timing of seismic activities. 



D-4 This permission is limited to a period from March 15 to July 1. 

 (Exact dates will vary with species of concern and with location 

 of the refuge. ) 



Surface disturbance. 



D-IP Permittee shall not disturb any waterflow pathway, improvement, 

 structure, marker, or other physical feature of the system. 

 Operations at all times shall be conducted so as to minimize 

 the total surface area affected. 



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