WSP03104

• File Number: 8143.600
• Description: John Martin Reservoir
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 7/31/1981
• Title: RESSYM - A John Martin Reservoir System Simulation - written in CDC Fortran Extended Vers. 4
• Water Supply Pro - Doc Type: Report/Study

2-2
In simuLatIng the operatIon of the reservoir, the operation
", wllL he silOuLdLed i.1I dCl~()rddIlCe wiLh Llle <.JrLtcles of Lhe ^rkdllsd5
~.><?,~_ Jl.Lv_,,-,,- _C_o_~ P-,:J"c_tJd ,~.Ln.i s t La U..o n _d" d_t.hc_o.fJ.el:d.U IHJ_C.r-i_t.~.r.J_d_d.d o.p.t.cd_by__-
Cl saId AdminIstration. The contents of the conservation pool for the
U'I reservo ir wi II then be determined for dny i th day by the fo L low ing
o relat ion J
o

5,
I

= Si-1 + Ii- Ri

(3 )

Where

5 i :::
5i_ F
Ii =
Hi =

sImu.Ldted stordge on the ddY in quest ion
sImulated storage on the fJrevIous day.
inflow determined by eq. 1 using hIstorIcal
reledses on the day in quest ion.

data

The releases, Ri, are determined according to the foL Lowing
criteria.

1.

During the period Nov. 1 to Mar. 31 aLL
stored. Reledses from the conservatIon
occur unless required for flood control
below).

in flows w11 L be
pool will not
purposes. (See #5

=

2. Releases from the conservdtlon pool d u ring the perIod
Apr. 1 to Oct. 31 will be dS follows:
d) 1f s. ) 20000 df, HI = 1250 cfs (2500 dfjdd)
i
b) .if s. < 20000 af, H. = 1000 c fs (2000 af/da)
I I

3. ALL water entering the reservoir durIng the perIod Apr. 1
to Oct. 31 wilL be ddded to the conservation storage whIle
the conservation pool is In residence; otherwise aii
measured inflows exceedIng the irrIgation requirement of
irrigators in Dist 67 by 1000 ac-ft per day will be stored
thus begInnIng conservation storage. Reledses from
conservatIon stordge at the specified rates will begin at
the fIrst request for a release on or after March 31 or
beginnIng at 8:00 a.m. on April 7, whIchever OCCurs
first. After conservation storage is initialiy emptied,
releases of water subsequently stored will begIn at the
first request for reledse or 48 hours after commencement
of conservation storage, whichever occurs first.

4. Al such times dS Lhe COllservdLion pooL is eVdcudted, the
natul'al river flow wII L be reledsed subject to the
conditions in criterid 3 dbove.

5. At such times dS the cOllservdtion pool encrodches on the
flood control space subject to the conditIons in criteria
.3 dbove, dnd as stated in criteria 1 dbove, water wILL be
reLedsed dS requi.red for flood control purposes.

These dre, in effect, the operdting criteria for John MartIn
Reservoir. For all prdclic~l jrltents (Ind purp()ses, these dre the
_ ~:___ope.1'dLiny_ IH'inc-i.VL".:;-.-- --~ - ---- - -- - -----,,- - ----- ---- -- - -