DWR_2813354 - Laserfiche WebLink

' 11 � � • , • 1 . - ll • 11 1 This report represents the results of water level measurements of welis in the Upper Black Squirrel Creek Designated Ground Water Basin made March 6, 20�3. This project was done in cooperation wi�h the Upper Black Squirrel Creek Ground Water Management District and some of the local well owners. This year, as in past years, the funding for this proJect was supplied in part from well permit fees collected and managed by the Office vf the State Engineer as a result of the passage of Senate Bill 20D during the 1987 legislati�e session. A total of 22 well sites were visited with 21 wells being measured, recorded and hydrographs constructed. Changes in water le�el from last year's readings for the allu�ial aquifer range from a decline of —12.1 D feet in T12S, Rfi2W, Sec. 30, to a rise of 2.25 feet at three d�fferent Iocations. The lowest decline in 2��3 was 4.30 feet less than the Iowest decline in 2002. The highest rise in 2�03 was 4.27 feet iess than the highest rise of 2002. The average decline for the entire basin was - 4.33 feet for 2002-2003 measurements as compared to an a►rerage decline of —3.6fi feet during the period 2�01-2002. A total change fvr the 5-year period of 1999 to 2��3 ranges frvm a decline of —19.30 feet in T13S, R63W, Sec. 26 to a rise of 11.37 feet in T13S, R53W, Sec. 25. The average decline for the last 5-year period is —1.04 feet per year (1999-2003}, as compared to an a�erage decline of -0.82 feetlyear for the 5-year period (1997-2UO2). Results of the measurements of Den�er Basin bedrock wells will be pubfished in the annual report for #he bedrock aquifers, which wiil be a�ailable in June of this year. The table of water level measurements included in this report is organized by location. fnforma#ivn presented inctudes location, water leveis measured prior to the 1988 measurements made by this offce, the 1988 through 2003 measurements and changes be#ween 20�2/2003. Also included are 22 well hydrographs of wells measured in the basin {with all years of record}. The final six pages of this repor� are maps of water level decline from the initial water le�el measurements to each of the years 1998 through 2003. The first 2 pages immediately following this report depicts water level changes frvm 2002 to 2003 and 2001 to 2002 with the outlined boundary of the Upper Black Squirrel Allu�ium. The maps depict a history of water decline within the Upper Black Squirrel alluvial aquifer.