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Fig. 9. Reconnaissance map of Pettitt reservoir site
10. Cross section of Los Vaqueros Creek at Pettitt dam site
of acre-feet, with the water surface at various levels.
thousands of acre-feet, with the water surface at various levels.. 20. Currier dam site and spillway on Arroyo Seco 21. Maximum cross section of Currier dam 22. Profile of outlet tower and tunnel of Currier reservoir 23. Discharge of San Lorenzo Creek at Mathews ranch from September
1, 1901, to August 30, 1902. 24. Mathews reservoir site on San Lorenzo Creek. 25. Capacity curve of proposed Mathews reservoir, showing capacity, in
thousands of acre-feet, with the water surface at various levels.. 26. Mathews dam site and spillway on San Lorenzo Creek.---27. Maximum cross section of Mathews dam.. 28. Profile of outlet tunnel and shaft of Mathews reservoir. 29. Plan of outlet gates of Mathews reservoir...30. Vertical section on line A-B through outlet gates of proposed
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LETTER OF TRANSMITTAL.
DEPARTMENT OF THE INTERIOR,
Washington, D. C., July 22, 1903. SIR: I have the honor to transmit herewith, for publication in the Water-Supply and Irrigation series, a report on the water resources of the Salinas Valley, California, by Mr. Homer Hamlin.
The report relates particularly to that portion of the Salinas Valley which lies within the boundaries of Monterey County. It describes the topography, hydrography, and economic geology of a portion of the region and discusses the methods of irrigation and the irrigation systems, the extent of underground waters, and the possibility of extending irrigation by the utilization of surface streams and the impounding of flood waters. Very respectfully,
F. H. NEWELL,
Chief Engineer Hon. CHARLES D. WALCOTT,
Director United States Geological Survey.