Baseline Water Quality Data Inventory and Analysis: Death Valley NationalMonument

摘要

This document presents the results of surface-water-quality data retrievals forDeath Valley National Monument from six of the United States Environmental Protection Agency's (EPA) national databases: (1) Storage and Retrieval (STORET) water quality database management system; (2) River Reach File (RF3); (3) Industrial Facilities Discharge (IFD); (4) Drinking Water Supplies (DRINKS); (5) Flow Gages (GAGES); and (6) Water Impoundments (DAMS). The document provides: (1) a complete inventory of all retrieved water quality data, water quality stations, and the entities responsible for data collection; (2) descriptive statistics and appropriate graphical plots of water quality data characterizing annual and seasonal central tendencies and trends; (3) a comparison of the park's water quality data to relevant EPA and Water Resources Division water quality screening criteria; and (4) an Inventory Data Evaluation and Analysis to determine what NPS-75 'Level I' water quality parameters have been collected in the park. Accompanying the report are disks containing digital copies of all data used in the report, as well as all components of the report (tables, figures, etc.). Information suitable for import into a GIS is included. The results of the retrievals for the study area from the IFD, DRINKS, GAGES, and DAMS databases located no industrial/municipal dischargers, no drinking water intakes, and no water impoundments. The results of the STORET retrieval for the study area yielded 2,600 observations for 209 separate parameters collected by 38 monitoring stations.