SUMMARY OF INFORMATION ON LONG ISLAND WELLS 



AVAILABLE IN THE LONG ISLAND OFFICE 



OF WATER POWER AND CONTROL COMMISSION 



The following data are on file in the Long Island office of the Commission and there may 

 be consulted by the public: 



^ Water Supphj Applications involving Long Island Water Supply Systems and wells— 110 

 series— complete files. Published decisions may be found in the annual reports of the State 

 Water Supply Commission and the Conservation Commission prior to 1920, thereafter in State 

 Department Reports. 



Long Island Well Applications complete files, decisions are summarized in annual reports, 

 important decisions are published in State Department Reports. 



Well Location Maps — There are on file sectional maps and atlases covering Long Island 

 on which the locations of all known wells have been plotted together with the official identifying 

 number. 



Well Data — Data on all known wells filed by official number. This is made up of census 

 sheets, drillers' final reports and similar data. This file is cross indexed as to the special data 

 given with regard to each well. 



Drillers' Preliminary Reports 



Drillers' Final Reports (filed under well data) 



Water Levels in Observation Wells — These water levels are published annually in the 

 bulletins of the U. S. Geological Survey, a list of which will be found below, under reference. 

 More recent observations, not yet published, can be consulted in blueprint form. 



Observation Wells— V^eWs in which observation of water levels and other characteristics 

 are taken. These are shown on various maps, and the data are on file. Water levels, fluctuations, 

 charts showing such fluctuations are on file. 



Pumpage Data 



Recharge Data, also designs of diffusion wells. 



Geological Correlations of Well Logs— Those included in this report, data to keep them 

 up to date and early correlations made by other parties, notably Veatch and Crosby. 



Geologic Maps and Sections — Those included in this report and others. 



Topographic Maps— United States Government, United States Coast Survey Charts. 



Ground Water Level Maps — Contour maps made from time to time showing the upper 

 ground water surface on definite dates. 



201 



