WSP00980

• File Number: 8143.800
• Description: John Martin Reservoir - Water Sales and Contracts
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 12/1/1997
• Title: Report of the Colorado State Engineer - Concerning Accounting of the Operations of an Offset Account in John Martin Reservoir for Colorado Pumping - 1997 -- Part 1 of 2
• Water Supply Pro - Doc Type: Report/Study

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STATE OF COLORADO

WATER DIVISION 2
OFFICE OF. THE STATE ENGINEER
310 East Albriendo, Suite 8
Pueblo, CO 81004
Phone [phone]
FAX(719,S44-D800

August 4, 1997

Roy Romer
Governor
James S. LOchhead
Executive Director
Hal D. Simpson
State Engineer
Steven '.' Witte. P.E.
Division Engineer

Mr. Don Higbee
Recording Secretary
Arkansas River Compact Administration
307 South Fifth Street
Lamar, CO 81052

David L. Pope
Kansas Chief Engineer
Kansas Board of Agriculture
901 S. Kansas Avenue, 2nd Floor
Topeka, KS 66612~1283

RE:

Monthly Report of Colorado Pumping and Offset Account Operations for June, 1997

Dear Mr. Higbee and Mr. Pope:

The purpose of this letter is to provide the monthly report required by paragraph 12 of the
Resolution Concerning an Offset Account in John Martin Reservoir for Colorado Pumping
dated March 17, 1997 ("Resolution"). This letter reports the monthly pumping in excess of
Colorado's pre-Compact entitlement, Colorado's monthly accounting of Compact compliance,
and the status of water delivered to the Offset Account, all during the month of June, 1997.

Table I shows the amount of pumping during the month of June, 1997 by irrigation wells
.pumpiligftomthtfV a1lel'cFi:ll- A-quifer and .surficial aquifers along the ArkansasRiverbetween.-
Pueblo and theStateIine, as-well as the corresponding wellhead depletions,byusergroup._The
wellhead depletions were computed usIng the presumptive stream depletions in Rule 4.2 of the
_. -AMENDED RULES AND REGULATIONS GOVERNING THE DIVERSION AND USE
. ,.
OFT1UBUT~Y (;ROUND WATER IN THE ARKANSAS RIVER BASIN,
COLORAD6-("Rules") approved in Case No. 95CW211.

Table 2 shows the wellhead depletions due to pumping by irrigation wells in the user groups
below John Martin Reservoir that is in excess of the pre-Compact entitlements.

Since the depletions caused by pumping above John Martin Reservoir were fully replaced, and .
that accounting has been provided to Kansas, and the depletions caused by pumping below John
Martin Reservoir which affect senior surface water rights in Colorado were fully replaced, and
that accounting has been provided to Kansas, the accounting in this report shows ouly remaining
depletions.caused by irrigation pumping in excess of the pre-Compact entitlements for.those .