Subtask 1.4 Identify and Characterize the Volume and Quality of Tributaries and Springs
In order to identify potential salinity sources, all the tributaries into the Pecos River (including perennial and intermittent streams) will be identified and characterized. Analyses will be carried out to determine how tributaries outside the main stem of the Pecos River influence water quantity and quality.
The first phase of this effort involves the review of hypsography and hydrography maps developed by the United States Geological Survey to identify the location of tributaries. This data will then be compared to satellite imagery to locate active sources of runoff into the Pecos River.
The second phase of this subtask involves fieldwork and ground truthing to physically locate each tributary. This work includes acquiring water and sediment samples, determining flow volumes, and submitting samples for laboratory analysis. When dry streambeds that could potentially carry water during storm events are located, sediment samples will be collected for laboratory analysis and passive samplers will be installed to collect water from these streams during storm events.
Deliverables for this Subtask
- Hydrography and hypsography maps of the Pecos River Basin
- Satellite images of the Pecos River Basin
- Assessment and summary of laboratory data
Reports
- TR-302: Identifying and Characterizing the Volume and Quality of Tributaries and Springs
