WSP03457

• File Number: 8276.100
• Description: Grand Valley Unit - Colorado River Basin Salinity Project
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 4/1/1992
• Title: Grand Valley Salinity Project Monitoring and Evaluation Program -- 1990 Annual Report
• Water Supply Pro - Doc Type: Annual Report

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\.'r) TABLE 7. GRAND VALLEY SALINITY PROJECT
',-I 1999 DEEP PERCOLATION FOR SURFACE IRRIGATION SYSTEHS11
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~- Site Irrig. Irrigation Event Number
10 Sys, Seasona I
(,) Type ----Crop---- 1 2 3 4 5 6 7 8 9+ Total
11 PGP ORCHARD 3.4 U 6.9 U U 19,3
12 CDS ALFALFA 5.6 3.5 9,2 5.1 3.7 5.3 23.4
15 CDS CORN 12.6 U 9.7 U 1.4 U 2.4 1.4 18.5
16 CDS ALFALFA U U U U U U
18 PGS ORCHARO U U U U U U U
21 PGP ALF ALF A 4.7 3.8 3.2 2.5 1.9 1.8 1.1 3.8 U 21.9
26 PGP CORN 11.3 U 4.7 U U U U U 16.9
27 PGP BEANS 17.9 4.1 3.5 3.7 4.4 4.2 3.5 41.3
29 CDS FALL GRAIN 4.4 5.6 1.9 U U 11.9
39 CDS CORN 5.1 U 1.5 3.6 3.2 3.5 16.9
31 CDS ALFALFA 1.1 2.1 M U U 1.4 1.5 1.2 6.5 16.4
32 CDS FALL GRAIN 19.8 4.1 3.6 3.9 3.2 1.5 1.9 3.1 1.6 41.8
37 CDS ALFALFA 4.8 5.1 3.7 3.9 2.8 5.5 3.3 6.1 4.9 39.2
39 PGS ORCHARD U U 1.4 U U 1.4
41 CGS CORN 9.9 U U U U U U U 9.9
42 CDS ONIONS 19.6 2.4 U U U U U U 25.8 38.8
43 PGP CORN 9.4 6.3 7.2 5.9 U 5.7 34.5
44 PGS CORN 5.1 1.4 1.6 1.9 1.1 11.1
45 COP FALL GRAIN 4.8 3.2 2.9 1.5 U 16.4
46 PCS FALL GRAIN 4.7 2.9 9.9 1.4 2.1 11.1
47 PGP ORCHARD U 1.2 9.6 9.2 U 2.9
48 CDS BEANS 7.9 1.4 1.4 U 1.9 11.7
Total for al I crops 141.3 46.4 46.6 31.8 3e.B 28.8 13.7 15.6 38.8 393.8
1/ Deep Percolation in acre inches/acre CGS--Conc Ditch to Gated Pipe, Surge
COS--Conc. Ditch to Siphon Tubes PGP (PGS)--Pipeline to Gated Pipe, (Surge) COP (PCS)--Ported Cone. Ditch, (Surge)

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Average Deep Percolation (In/Ac)
No. of Fields
5 ALFALFA 3.2 2.9 1.5 2.1 1.9 2.8 1.2 2.2 2.3 29.2
2 BEANS 12.5 2.8 2.5 1.9 3.2 2.1 1.8 U U 26.5
6 CORN 8.8 1.3 2.6 1.9 1.9 1.5 M 9.2 U 17.7
4 FALL GRAIN 8.4 3.7 2.3 1.5 2.3 9.4 9.5 9.8 9.4 29.3
1 ONIONS 1M 2.4 U U U U U U 25.8 38.8
4 ORCHARD 9.9 9.3 2.2 9.1 U U U U U 3.4
13 Annual Crops 9.4 2.4 2.3 1.6 1.6 1.1 9.6 9.3 2.1 21.5
9 Perennial Crops 2.2 1.7 1.8 1.2 1.1 1.6 U 1.2 1.3 12.7
22 All Crops 6.4 2.1 2.1 1.4 1.4 1.3 U 9.7 1.8 17.9

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Percentage of Deep Percolation by Events
No. of Fields
5 ALFALFA 16.1 14.4 7.6 19.5 9.4 13.9 5.8 11.9 11.3
2 BEANS 47.9 1M 9.2 7.9 11.9 7.9 6.6 U U
6 CORN 49.5 7.3 14.8 lU 5.4 8.7 2.3 1.3 U
4 FALL GRAIN 41.5 18.3 11.5 7.3 11.5 1.8 2.3 3.8 2.9
1 ONIONS 27.3 6.2 U U U U U U 66.5
4 ORCHARD 24.8 8.8 65.9 1.5 U U U U U
13 Annual Crops 43.6 19.9 19.7 7.5 7.6 5.3 2.8 1.6 9.8
9 Perennial Crops 17.1 13.7 14.5 9.4 8.3 12.2 5.1 9.7 9.9
22 All crops 35.9 11.7 11.8 8.1 7.8 7.3 3.5 U 9.9
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