TWENTY-SEVENTH BIENNIAL REPORT. 59 



June 29, 1922. Dam in East Fork Carson River, Nevada, owned by Douglas Mill- 

 ing and Power Company, Douglas County. Nevada, and the Curtz Dam in East Fork 

 of Carson River, Alpine County, owned by Peter Curtz, inspected. 



June 19, 1922. The Hercules dam in East Fork of Carson River, owned by the 

 Hercules Mining Company of Reno, Nevada, surveyed. 



July 2, 1922. The fishway and dam of the Crown Willamette Paper Mill Com- 

 pany, Floriston, Nevada County, inspected. 



July 2, 1922. Dam and fishway of the Truckee River General Electric Cumiiany. 

 Reno, Nevada, in Nevada County ; dam and fishway at "Wicks Spur, Truckee River, 

 Nevada County, owned by the Union and National Ice Company, and dam on Pros- 

 ser Creek. Nevada County, owned by the Union Ice Company, inspected. 



July IS. 1922. Dam and fishway of Anderson-Cottonwood Irrigation District at 

 Redding. Shasta County, inspected. - 



July 22. 1922. Dam in Lost Creek. Butte County, owned by the South Feather 

 River Land and Water Company of Butte County, and the dam on South Fork of 

 Feather River, owned by the Palermo Lnnd and Water Company, Butte County, 

 surveyed. 



July 25, 1922. Fishway over dam of the Sutter-Butte Canal Company, Feather 

 River, Butte County, inspected and surveyed. 



Total inspected, 41. 



Total surveyed, 28. 



SCREEN SURVEYS AND INSPECTIONS. 



The surveys for installation of screens in ditches, canals, pipes and 

 flumes has been carried on systematically during the period since our 

 last report. From July 1. 19*20. to July 1, 1922, 187 surveys for screens 

 were made and 254 notices served on owners or occupants of ditches to 

 install screens. It often happens that a ditch or canal is owned by sev- 

 eral persons cooperating- in the use of the water and in maintaining: 

 the ditch or canal, but not a legal or incorporated body and it is nec- 

 es-sarj^ to serve each individual with a notice to compel them to buihl 

 the screens and to pay their proportion of the installation. 



Eleven hundred and eight inspections of screens Avere made dnriiig 

 the period since our last report. A number of ditches and canals liad 

 to be inspected several times to get the data and to see that the screens 

 were installed and after they were installed to see that they were kept 

 in repair or in efficient condition. Twenty injunction suits have been 

 filed by our attorney against ditch owners who have not complied with 

 the screen law. Several of these have been settled by the owners carry- 

 ing out the plans and instructions given them. The other cases arr in 

 the hands of the district attorneys of Trinity, Butte, Tehama. .\l|)inf. 

 Mono and Inyo counties. A number of large canals have been screened 

 during the Ust two years. The most important of these, is the eanal ol 

 the Glenn-Colusa Irrigation District, where a screen of the pivotal type 

 238 feet long by 11 feet in depth, built in sections, each nnit sn ;iiTani:ed 

 that it can be reversed and the debris allowed to escape with the cnrrent, 

 has been installed. Reclamation District 2047 in ("oliisa Comity has 

 installed two screens of the De St. :\Iauricc type over their two nine-foot 

 pipes leading from their pumps. During the past six months, the Paeihi- 

 Gas and Electric Company has built and installed a niiinbei- ol rotary 

 screens in Stanislaus, Butte and Tehama eoiinties. 



COOPERATION WITH THE DIVISION OF WATER RIGHTS. 

 We again respectfully recommend that leuislation be passed tiiat will 

 arrant^c'^for the cooperation and coordination of the Division of Water 

 Rio-hts with the Fish and Game Commission in regard to the appropria- 



