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final record for those gaging stations operated by non-state entities, such as the U. S. Geological Survey-Water Resources Division, is the responsibility of that entity. Modifications to the real-time records for these stations are accepted by the state of Colorado. C. Water Resources Accounting There is a growing need for the ability to perform automated water resources accounting. Currently, the satellite-linked monitoring system is being utilized for such accounting for the Colorado-Big Thompson Project. the Dolores Project, and the Fryingpan-Arkansas Project Winter Water Storage. The abil ity to input real-time data into these accounting programs allows for current and on-going tabulations. Since the computations are performed on a computer, the accuracy is increased significantly. D. Dam Safety Dam safety monitoring has developed in recent years into a major issue. Numerous on-site parameters are of interest to the State Engineer in assessing stability of a dam. At this time, the system monitors seven reservoirs in Colorado. Currently, the parameters monitored are limited to inflow, outflow, and stage elevation. These data do, however, provide a basis for evaluating current operating conditions as compared to specific operating instructions. The installation and operation of additional sensor types could provide essen- tial data on internal hydraulic pressure, vertical and horizontal movement, and seepage rates. E. Automated Flood Warning System The Office of the State Engineer, Division of Water Resources, in cooper- ation with the National Weather Service - Central Forecast Office (NWS-CFO) in Denver, operates a statewide flood warning system utilizing 78 stream gaging stations that are part of the Colorado satellite-linked water resourcesmoni- toring network operated by the State Engineer. The NWS-CFO, which operates on a 24-hour basis, is alerted to changing flow conditions. If conditions warrant, either a flood WATCH or a flood WARNING is issued. Table 2 lists the incorporated stream gaging stations with the desig- nated alert levels used to flag high water conditions. A synopsis of how the system operates follows: 1. Remote Data Collection/Data Transmission Stream stage levels are measured and recorded every fifteen minutes for transmission at standard 4-hour intervals, If stage alert levels are sur- passed, emergency transmissions are made at random intervals of from 2-10 minutes, All transmissions are sent via the Geostationary Operational Environmental Satellite. Transmissions are received and processed at the receive site located in Denver operated by the State Engineer. -53-