SPDSS_Task44-3_LowerSPlatteAlluviumRegionAquiferWaterLevels

• Title: SPDSS Task 44.3 - Lower South Platte Alluvium Region Aquifer Levels - Phase 3
• Description: This Technical Memorandum was undertaken under Task 44.3 of Phase 2 of the SPDSS, and summarizes the compilation, analysis and mapping of water level data of the South Platte Alluvial Aquifer.
• Decision Support - Doc Type: Task Memorandum
• Date: 11/29/2006
• DSS Category: Groundwater
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153953
• Grant Type: Non-Reimbursable
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: CDM

Table 1: Summary of Water Level Data for the South Platte Alluvium Region

Source
Total Number of
Alluvial Wells Total Number of
Alluvial Water Level
Measurements
1. Central Colorado Water Conservancy
District
190
4,056
2. City of Thornton 46 380
3. Colorado Division of Water Resources 185 5,494
4. Colorado Division of Wildlife 39 582
5. CWCB Basic Data Report #8 663 663
6. Colorado State University 168 2,711
7. Metropolitan Wastewater Reclamation
District
23
118
8. Mor an Count Qualit Water District 9 353
9. Rock Mountain Arsenal 11 746
10. South Adams Count WSD 20 708
11. SPDSS Tasks 35 and 391 38 24,894
12. Thornton Northern Pro ~ect 55 1,829
13. Town of Julesbur 37 1,601
14 USGS General Database2 5,246 64,459
15. USGS National Water Quality
Assessment Pro am
24
246
Tota l 6,754 108,843
1 Data collected on daily basis.
z Data set contains data for bedrock and alluvial aquifers.
During Phases 1, 2 and 3 of SPDSS, water level databases were identified and obtained from
sources within the South Platte Alluvium Region. As part of this task, these databases are
submitted to the DWR for inclusion in HydroBase. The following is a brief description of each
of the source databases.
A database was obtained from the Central Colorado Water Conservancy District (CCWCD). The
CCWCD database contains 191 alluvial wells distributed over much of the South Platte
Alluvium study area, with 4,056 water level measurements. Data in the CCWCD database
consists of water level measurements from 1930 to 2004.
A water level database containing alluvial aquifer well data was obtained from the DWR. The
DWR collects water level data from the alluvial aquifers downstream of Denver, starting at the
flow gaging site on the South Platte River at Henderson. This database includes 185 wells in the
South Platte Alluvium Region and 5,494 measurements from 1930 to present.
The Colorado Division of Wildlife (CDOW) provided water level data associated with the
Tamarack Project. The CDOW database consists of 39 alluvial wells that were measured 582
times periodically at different increments between 2000 and 2005.
SPDSS Phase 3 Task 44.3 TM -Final 4
11/29/2006