1005 

 APPENDIX III 



Location of Onshore Impacts of Outer Contineni'al Shelf Oh, 

 AND Gas Development ^ 



I. summary 



The onshore impacts of Outer Continental Shelf oil and ^as opera- 

 tions will be concentrated in the coastal zone. The location of these im- 

 pacts can be approximated by a determination of the possible place- 

 ment of various facilities necessitated by OCS development. These 

 facilities can be broken down roughly into four categories, which 

 include : 



(i) Facilities which are highly coast dependent, and must have 

 direct coastal access. 



(ii) Facilities which are highly dependent, but do not requirfc 

 direct access (may be located up to five miles from shore). 



(iii) Facilities which originate at the coast, but may stretch 

 farther inland (up to 50 miles) . 



(iv) Facilities which are not inherently coast dependent, and 

 thus may be located anywhere. 



Defining the relationships between each of these categories and state 

 coastal zones is difficult because of the diversity in possible coastal zone 

 definition (most states' coastal zones are not yet finally delimited). 

 All the states have begun defining planning areas which generally com- 

 prise the first tier or first two tiers of coastal counties. Management 

 boundaries have more variety. One strategy is to delineate a narrow 

 (100 feet to 1000 yards) strip of direct state permitting control, cou- 

 pled with a larger area (from 5 to 100 miles) in which management is 

 effected through local master plans.^ ^ * This method appears to be the 

 favored approach. Another alternative is to delete the direct state con- 

 trol area, and expand state powers somewhat over the larger zone." 



In any case, all facilities in the first two categories will be sited 

 within states' coastal zones. These facilities are generally required for 

 OCS development, and will be responsible for most of the construc- 

 tion and resulting environmental and infrastructure impacts. The 

 third category of facilities is relatively minor; these will be included 

 either within the states' management or planning zones. 



The last category of facilities depends far less upon OCS produc- 

 tion per se than upon oil production in general. Because of the wider 

 range of available sites and the much diminished siting pressures, these 



iThls report was nrenared by the Office of Coastal Zone Manasrement. National Oceanic 

 and Atmosnheric Administration at the request of the Subcommittee on Oceanography. 

 'California Coastal Plan. p. 12. 



3 Washington State Coastal Zone Management Program, p. 29. 

 * San Francisco Bay Plan. p. 38. 

 » Oregon's Draft 306 Coastal Zone Management Submission, p. 57. 



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