2010-02-11_HYDROLOGY - M1999021

• Permit No: M1999021
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/11/2010
• Doc Name: Groundwater Monitoring Data
• From: Aggregate Industries
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: MAC
• Media Type: D
• Archive: No

GROUNDWATER OBSERVATION DATA SHEETS STEGNER FARM SAND & GRAVEL MINE
Aggregate Industries
WELL NUMBER S-10
Date Depth Measured PVC Rim Ground Water Depth Below Difference from Notes
(PVC rim to water) Elevation Elevation Elevation Original Ground Historic Levels
(ft) (ft) (ft) (ft) (ft) (ft)
S. Gomke measured (10:32 am) per
request as a follow-up to conditions after
valve installed on drain. Ditches full &
flowing. Per discussion w/Nick Silbaugh
on 7/24/07, 100% of flow is still into pit. He
07/26/07 5.00 5032.24 5029.71 5027.24 2.47 plans to adjust valve to 50%.
90s,hot; T&G full&flowing. Per discussion
w/Nick Silbaugh 8/7, he adjusted valve on
8/1/07 for 80% of flow to go to pit & 20% to
drain. Heavy rains occurred in Ft. Collins
Thursday, 8/2. Stegner told Nick he had
08/03/07 5.10 5032.24 5029.71 5027.14 2.57 0.08 around 5' of rain.
60s,cloudy; T&G flowing, laterals-
09/06/07 7.20 5032.24 5029.71 5025.04 4.67 1.98 trickles
10/01/07 7.40 5032.24 5029.71 5024.84 4.87 3.78 65,sunny; laterals-low trickle
40, sun; laterals dry. Per N
Silbaugh, perimeter drain valve
adjusted 10/12 to send 100% of
11/05/07 10.00 5032.24 5029.71 5022.24 7.47 1.98 water to drain.
12/03/07 10.50 5032.24 5029.71 5021.74 7.97 2.28 31, partly cloudy
01/03/08 10.80 5032.24 5029.71 5021.44 8.27 2.28 34, partly cloudy
02/01/08 11.00 5032.24 5029.71 5021.24 8.47 2.38 44, partly sunny
03/03/08 11.50 5032.24 5029.71 5020.74 8.97 1.98 44, partly cloudy, windy
04/14/08 12.20 5032.24 5029.71 5020.04 9.67 1.38 59, clear
70; per N Silbaugh, perimeter
drain valve adjusted 60% to pit,
05/20/08 4.80 5032.24 5029.71 5027.44 2.27 6.48 40% to pipe
06/02/08 4.70 5032.24 5029.71 5027.54 2.17 2.08
85; per N Silbaugh, perimeter
drain valve adjusted 80% to pit,
07/07/08 5.10 5032.24 5029.71 5027.14 2.57 0.48 40% to pipe
08/12/08 6.50 5032.24 5029.71 5025.74 3.97 (1.32) 77, sunny
09/02/08 5.80 5032.24 5029.71 5026.44 3.27 3.38 60s, sunny; TG full & flowing
10/06/08 7.00 5032.24 5029.71 5025.24 4.47 4.18 60s, sunny; TG low
50s, partly cloudy; TG low; per N
Silbaugh, perimeter drain valve
11/12/08 9.10 5032.24 5029.71 5023.14 6.57 2.88 adjusted 100% to pipe
12/01/08 No measures taken
01/08/09 11.30 5032.24 5029.71 5020.94 8.77 1.78
02/03/09 11.60 5032.24 5029.71 5020.64 9.07 1.78
03/03/09 12.60 5032.24 5029.71 5019.64 10.07 0.88
04/06/09 13.00 5032.24 5029.71 5019.24 10.47 0.58
68, sun, muddy; TG flowing;
05/11/09 6.70 5032.24 5029.71 5025.54 4.17 4.58 laterals dry
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