■ -3 - 



has not been sufficient to permit the presentation of more supporting 

 data. It is desired to point out however that the United States Public 

 Health i5ervice with its highly specialized stream pollution investigation 

 facilities at Cincinnati, Ohio has been requested to collaborate with 

 the Division of Sanitary Engineering in attempting to forecast as 

 precisely as possible the likely affect of the Lower Bay Barriers on 

 the pollution of Narragansett Bay. That agency is working on the 

 matter, but will require more time to study it and prepare a report, 

 than this hearing permitted. It is requested that an opportunity be 

 granted to submit this report at a later date. 



It appears that the Lower Bay Barrier Plan as presently 

 conceived will make the control of pollution in Narragansett Bay far 

 more difficult to realize than at present because of the resulting 

 reduction in normal tidal water movement. 



It is urged that further consideration be given only to types 

 of flood control barriers that will not produce a significant reduction 

 in the tidal prism in Narragansett Bay. 



^.J^-T.^ 



iifalter J. Shea, Chief 



Division of Sanitary Engineering 



Rhode Island State Department of Health 



i 



G-23 



