The USGS collects, monitors, analyzes, and provides scientific understanding about natural resource conditions including one of our most important resources – water.
Their diversity of scientific expertise enables them to carry out large-scale, multi-disciplinary investigations and provide impartial information to a variety of entities, including residents of Grandview Estates.
Grandview Estates has been participating in a groundwater-level monitoring program since 2004 as part of a Douglas County-wide program.
As per the report:
Grandview Estates domestic wells are primarily completed in the Dawson and Denver aquifers, which are in the uppermost layers of the Denver Basin aquifer system in this area. Surrounding municipal wells are completed in the Dawson, Denver, Arapahoe, and Laramie-Fox Hills aquifer of the Denver Basin aquifer system. Concern for the effects of pumping on water levels in the Grandview domestic wells led to a cooperative water-level monitoring project between the GERWCD and the USGS.
In 2009, a water-level monitoring network of 14 domestic wells (6 completed in the Dawson aquifer, 8 completed in the Denver aquifer – two of which are also participating in the county-wide program consisting of other county residents on well water) was established in Grandview Estates, and water levels were measured on a regular basis. In 2010, one Dawson well was dropped from the network and six additional domestic wells, all completed in the Dawson aquifer, were added to the water-level monitoring network to provide additional water-level measurements prior to the construction of Chambers Reservoir. In 2011, one additional well completed in the Dawson aquifer was added to the network. In December 2011, transducers were installed in two wells and were programmed to record water levels on an hourly basis. In June 2013, one Dawson well was dropped from the network at the owner’s request. In June 2014, one well was equipped with instrumentation to automatically measure and record the depth to water, water temperature and specific conductance at regular intervals. To date, water levels are routinely measured in 19 domestic wells in Grandview Estates; eleven wells are completed in the Dawson aquifer, and 8 wells are completed in the Denver aquifer.
In 2004 and 2005, water-quality samples were collected by the USGS from two domestic wells in the Grandview Estates subdivision as part of a National Water Quality Assessment (NAWQA) Program water-quality characterization study in the Denver Basin.
The full report dated October 11, 2018 is attached as *.pdf file. It includes specific information as to the water levels found by year, including recent information for measurements taken through August 2017. As updated reports are released, they will also now be posted on the website for all residents to review.
GVE 10-17 USGS Water Level Monitoring Report
Extensive additional information is available on their website at: www.usgs.gov.