TWENTY-SEVENTH BIENNIAL REPORT. 59 



■Tuno 20, 1022. D;)ni in East Fork Caison lviv<"r, .Vcvatla, owned l.y l)iiii;;las .Mill- 

 ins and I'owor Company, Itoniilas Coiiiity, Xinada. and llir Curl/. Dam in lOast l-'ork 

 of Carson Kiver. Alpine County, owned by I'oti'r Curtz, inspected. 



Juno 10, 1022. The Hercules dam in East Fork of ("arson liivei'. owned \,y tin- 

 Hercules Mining Company of Reuo, Nevada, surveyed. 



July 2. 1022. The fislnvay and dam of the Crown ^^'ilI;n^(•tle Taper .Mill Com- 

 pany. Floriston, Nevada (/ouuty, inspected. 



July 2, 1022. Dam and fishway of the Truckee River (ieneral Electric C(jni)»any, 

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

 Nevada County, owned hy the Union and National Ice Company, and dam on Tros- 

 ser Creek, Nevada County, owned by the Ihiion Ice Comi)any, inspecti'd. 



July IS, 1022. Dam and lishway of Anderson-Cottonwood Irriualion District at 

 Redding. Shasta County, inspected. 



July 22. 1022. Dam in Lost Creek, Butte County, owned by the Sonili Feather 

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

 Feather River, owned by the Palermo Laud and M'ater Company. Butte County, 

 surveyed. 



July 25, 1022. Fishway over dam of the Sutter-P.utte Canal Company. Feather 

 River, Butte County, inspected and surveyed. 



Total inspected, 41. 



Total surveyed, 2S. 



SCREEN SURVEYS AND INSPECTIONS, 



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

 flumes has been carried on systematically dnrin"; the period since our 

 last report. From July 1, 1920, to July 1, 1922, 187 surveys for screens 

 were made and 254 iiotices 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 tlie use of the water and in maintaininu' 

 the ditch or canal, but not a leg'al or incorporated body and it is nec- 

 essary to serve each individual with a notice to compel tliem to build 

 the screens and to pay their proportion of the installation. 



Eleven hundred and eight inspections of screens were made during 

 the period since our last report. A number of ditches and canaK 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 injimction suits have lieeii 

 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 are in 

 the hands of the district attorneys of Trinity, Butte, Tehaum. Alpine. 

 i\Iono and Inyo counties. A number of large canals have been screened 

 during the last two years. The most important of these, is the canal of 

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

 238 feet long by 11 feet in depth, built in sections, each unit so arranged 

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

 has been installed. Reclamation District 20-1:7 in Colu.sa County has 

 installed two screens of the De St. ^Maurice type over their two nine- font 

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

 Gas and Electric Company has built and installed a luimber of rotary 

 screens in Stanislaus, Butte ami Teham;i counties. 



COOPERATION WITH THE DIVISION OF WATER RIGHTS. 



We again respectfully reconnnend that leuislation be passed that will 

 arrange for the cooperation and coordination of the Division of Water 

 Rights with the Fish and Game Connnission in regard to the appropria- 



