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HomeMy WebLinkAboutCOLLEGE & TRILBY MULTIFAMILY COMMUNITY - PDP220009 - SUBMITTAL DOCUMENTS - ROUND 3 - SUPPORTING DOCUMENTATION (3) 400 North Link Lane | Fort Collins, Colorado 80524 Telephone: 970-206-9455 Fax: 970-206-9441 October 27, 2023 Zocalo Community Development 455 Sherman Street, Suite 205 Denver, Colorado 80203 Attention: Kolby O’Herron Subject: Supplementary Groundwater Monitoring Core Spaces Fort Collins, Colorado CTL|T Project Number: FC10864-112 L1 CTL|Thompson, Inc. is performing a groundwater monitoring study at the above referenced project. This letter presents the most recent groundwater measurements from piezometers at the site. On June 19th through 26th, 2023, twelve borings were drilled at the locations shown on Figure 1 (TH-1 through TH-12) using solid-stem augers and a truck-mounted drill rig. The monitoring holes were fitted with temporary PVC piezometers to facilitate monthly groundwater measurements. Groundwater was measured relative to the existing ground surface by a representative from our firm. The table below summarizes our groundwater measurements to date. 6/26/23 6/30/23 7/24/23 8/24/23 9/27/23 10/24/23 TH-1 DNE* 6.9 7.4 8.2 9.3 10.5 TH-2 4 10.1 2.5 7.4 8.2 9.1 TH-3 23 10.9 11.0 11.6 12.5 14.4 TH-4 DNE DNE 17.5 DNE DNE 18.7 TH-5 DNE DNE DNE 24.1 24.2 23.9 TH-6 DNE DNE DNE DNE DNE XXX TH-7 DNE DNE DNE 23.9 DNE DNE TH-8 DNE DNE XXX XXX XXX XXX TH-9 DNE DNE 13.5 15.8 16.4 19.0 TH-10 DNE 22.1 14 11.8 12.1 12.3 TH-11 12 10.6 10.8 10.8 11.7 DNE TH-12 24 19.4 20.7 21.5 21.6 21.8 *DNE – Did Not Encounter **X – Hole Destroyed OTAK SH66 AND CR7 UNDERPASS CTL | T PROJECT NO. FC10744-112 2 We appreciate the opportunity to work with you on this project. If you have any additional questions or concerns, please contact the undersigned. Sincerely, CTL|THOMPSON, INC. R.B. “Chip” Leadbetter, III, PE Senior Engineer 400 North Link Lane | Fort Collins, Colorado 80524 Telephone: 970-206-9455 Fax: 970-206-9441