WSP06093 - Laserfiche WebLink

Home Browse Search

Ground water monitoring and evaluation will be regularly reported to the Closed Basin Operating Committee. All adverse determinations will be reported to the committee which will evaluate it and determine whether it will require adjustments to the operations in a manner that will minimize impacts as required by authorizing legislation. 6. WATER MEASUREMENT AND ACCOUNTING OF PROJECT WATER Water measurement and accounting procedures are currently being formulated in coordination with the Colorado Division of Water Resources (DWR). The requirements specified in the authorizing legislation and the Rio Grande Compact form the basis for the measurement and accounting procedures. Water measurement and accounting issues will be accompl ished jointly be- tween the ALB office of Reclamation and the Alamosa office of the Colorado DWR. The water metering devices along the conveyance channel, specifically the Parshall flume and the four constant head orifice (CHO) turnouts, will be rated. The Parshall flume will be independently monitored by both agencies with separate automated systems. A permanent record will be maintained by Colorado DWR as a backup to the automated systems. The CHO data will be collected using gate opening and head sensors which will be transmitted to the central receive/computer site of the PMSC system. These data will be used to compute flows using the appropriate rating curve for each measuring structure. All structures will be periodically checked and rated as necessary throughout the 1 ife of the project. r - r. ~ :.. .~ ,j '" ......(.[ v.... Water accounting for San Luis Lake will be a simplified budget method, ie: Inflow = Change in Content + Release. Contributing inflows from Head Lake and the conveyance channel will be metered which will allow for the monitoring and accounting of inflow contributions from surface and drainage sources. 19