SPDSS_Task5_KeyStructure_HomeSupplyDitchReservoirCo

• Title: SPDSS Task 5 - Key Structure, Concolidated Home Supply Ditch and Reservoir Company
• Description: The Consolidated Home Supply Ditch and Reservoir Company has been identified as a key structure for the South Platte Decision Support System ‎(SPDSS)‎ consumptive use and surface water modeling efforts. The purpose of this Task 5 memorandum is to document physical, legal, and operational aspects of those key structures identified.
• Decision Support - Doc Type: Task Memorandum
• Date: 2/16/2005
• DSS Category: Surface Water
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153954
• Grant Type: Non-Reimbursable
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: Leonard Rice Engineering

Table 3
Lon Hagler Reservoir
Stage -Area -Capacity Curve
Elev. Area Capacity
(ft) (Acres) (Ac-Ft)
1 NA 4.21
2 NA 16.85
3 NA 35.79
4 NA 58.90
5 NA 86.18
6 NA 117.60
7 NA 163.13
8 NA 192.56
9 NA 235.93
10 NA 283.23
11 NA 334.50
12 NA 389.78
13 NA 449.07
14 NA 512.37
15 NA 579.38
16 NA 649.78
17 NA 723.58
18 NA 800.78
19 NA 881.53
20 NA 965.99
21 NA 1054.15
22 NA 1146.03
23 NA 1241.77
24 NA 1341.57
25 NA 1445.42
Elev. Area Capacity
(ft) (Acres) (Ac-Ft)
26 NA 1553.33
27 NA 1665.26
28 NA 1781.18
29 NA 1901.10
30 NA 2025.01
31 NA 2152.89
32 NA 2284.72
33 NA 2420.50
34 NA 2560.22
35 NA 2703.78
36 NA 2851.06
37 NA 3002.07
38 NA 3156.80
39 NA 3315.28
40 NA 3477.55
41 NA 3643.60
42 NA 3813.43
43 NA 3987.06
44 NA 4164.50
45 NA 4354.75
46 NA 4530.81
47 NA 4719.59
48 NA 4912.02
49 NA 5108.09
50 NA 5307.81
Source: Water Commissioner, Fred Renner.
Note: Dead storage of 375 ac-ft
N/A -not available
Enlargement History: Lon Hagler Reservoir has not been enlarged.
Reservoir Storage Measurement: Storage levels in Mariano Reservoir and Lon Hagler
Reservoir are measured using atape-measuring device without a recorder. The
superintendent for the Company is responsible for collecting and reporting the end-of-
month storage amounts to the Water Commissioner in Water District 4.
Reservoir Seepage/Evaporation Information: No studies have been conducted to quantify
seepage losses from the various reservoirs owned and used by the ditch company
although seepage losses are experienced. Reservoir seepage generally accrues to the lands
and ditch systems below the individual reservoirs.
Home Supply Ditch Operating Memorandum.doc 10 of 15 February 16, 2005