My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2014-08-12_HYDROLOGY - M1978056
DRMS
>
Day Forward
>
Hydrology
>
Minerals
>
M1978056
>
2014-08-12_HYDROLOGY - M1978056
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
9/6/2020 1:46:01 PM
Creation date
8/13/2014 9:33:06 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1978056
IBM Index Class Name
Hydrology
Doc Date
8/12/2014
Doc Name
SWSP Amendment
From
DWR
To
Cheryl Signs Engineering
Permit Index Doc Type
Hydrology Report
Email Name
PSH
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
19
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
Cheryl Signs, P.E. Page 6 <br /> Durham Combined SWSP <br /> August 12, 2014 <br /> WDID Source A ro riation Date Decreed Amount <br /> 0600532 VCI Godding Ditch Diversion from 08/10/2001 11 cfs <br /> Idaho Creek <br /> 0600551 VCI Rural Ditch Diversion from 08/10/2001 11 cfs <br /> Boulder Creek <br /> 0600756 VCI Rural Ditch Diversion from 08/10/2001 11 cfs <br /> Idaho Creek <br /> 0500642 VCI Godding Hollow Diversion 09/08/2000 11 cfs <br /> 0500589 VCI Last Chance Ditch Diversion 08/10/2001 11 cfs <br /> 0504001 112 Reservoir 08/10/2001 1,552 acre-feet <br /> 0504003 Dakolios Reservoir 08/10/2001 1,104 acre-feet <br /> 0504002 Von Ohlen Reservoir 08/10/2001 1,300 acre-feet <br /> 0504000 Kurtz Reservoir 08/10/2001 4,000 acre-feet <br /> Note:Total direct diversion from all sources not to exceed 11 cfs. Storage rates are 90 cfs for Rural Ditch and <br /> Godding Ditch, 10 cfs for Godding Hollow and 100 cfs for Last Chance Ditch. <br /> Last Chance Ditch five shares <br /> There are 20 outstanding shares in the Last Chance Ditch Company, a mutual ditch company. The Last <br /> Chance Ditch (WDID 0500589) headgate is located on Saint Wain Creek. The water right was <br /> adjudicated on June 2, 1882 in Civil Action No. CA6009 with appropriation dates from March 15, 1872, <br /> with a decreed diversion rate of 94.94 cfs. The Applicant owns 5 shares (24.235 cfs) of the outstanding <br /> 20 shares of the Last Chance Ditch which are included in the SWSP amendment. Three of the five <br /> shares of the Last Chance Ditch were historically used for irrigation on the Kurtz Ranch and the other <br /> two shares of the Last Chance Ditch were historically used on a portion of the Van Ohlen Farm (one <br /> share) and Heinzelman Farm (one share). The Applicant submitted a new historical consumptive use <br /> ("HCU") analysis with the SWSP amendment request. The period of analysis was 1947 through 1974. <br /> The study period is accepted for this SWSP amendment, however for any renewal request of <br /> this SWSP the Applicant must extend the study period through 2014 to include the years of non- <br /> use, and undecreed use. The years the subject shares were included as a replacement source in <br /> a gravel pit SWSP approved by the State Engineer's Office, may be excluded from the analysis. <br /> The diversions in the dry years of 1954 and 1963 were greater than the average diversion, and the dry <br /> year consumptive use exceeded the average use. Therefore the average years were used in the HCU <br /> analysis. Separate HCU analyses were conducted for each farm, with the following common methods <br /> and assumptions: <br /> • The Modified Blaney-Criddle method as described in National Resource Conservation Service's <br /> Technical Release 21("TR21") was used to quantify the crop demand <br /> • Soil Conservation Service methodology for calculation of effective precipitation. <br /> • Assumed ditch loss of 10 percent. <br /> • Temperature and precipitation data were taken from the Longmont weather station as published by <br /> NOAA. <br /> • The farms were all flood irrigated. The Applicant proposed an initial application efficiency of 75 <br /> percent for each farm based on review of aerial photos of the farms and field visits to examine site <br /> specific conditions. The portion of the 75% delivery that could not be used by the immediate <br /> monthly crop demand was stored in the soil bank. This initial efficiency will be accepted for this <br /> SWSP plan period, however any renewal request must provide information to support the claimed <br /> efficiency, including the type of flood irrigation, soil properties, aerial photos, slopes, irrigation <br /> practices, technical references specific for the parcels that the 5 shares of the Last Chance Ditch <br /> were used. <br />
The URL can be used to link to this page
Your browser does not support the video tag.