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La Plata Compact (Index Flow) (ityopr=13)

The type 13 operating rule allows an instream flow to operate based on its location on the river and the stream flow at a remote location. This rule has generic applications but was originally developed to handle the La Plata River compact in the San Juan River Basin. This compact, in general, limits Colorado's commitment to deliver water to New Mexico based on the flow at an upstream, index gage. Additional discussion of the La Plata Compact implementation is provided in Section 7.16.4.

Row-data Variable Description
Control Data
1 Format (a12, a24, 12x, 4x, f12.5, f8.0, i8, 3(1x,a12,i8), i8, 1x,a12, 1x,a12,1x, 2f8.0, 2i8)
1-1 cidvri(1) Operational right ID
1-2 nameo(1) Operational right name
1-3 rtem(1) Administration number
1-4 dumx Monthly Switch
0 = No monthly on/off values
12 = Number of monthly on/off switches provided
1-5 ioprsw(1) Annual On/Off Switch
0 = off
1 = on
+n = Begin in year n
-n = Stop after year n
Destination Data
1-6 ciopde Destination Instream Flow
1-7 iopdes(2,1) Destination Account, enter 1
Supply Data
1-8 ciopso(1) River ID of the Index flow station
1-9 iopsou(2,1) Percent of the Index flow station available
1-10 ciopso(2) Instream Flow water right
1-11 iopsou(4,1) 1 = The source water right (ciopso(2) is turned off) i.e. it can only be used by this operating rule)
Type Data
1-12 ityopr(1) 13
Associated Plan Data
1-13 creuse NA
Diversion Type
1-14 cdivtyp NA
Conveyance Loss (%)
1-15 OprLoss 0
Miscellaneous Limits
1-16 OprLimit 0
Start Date
1-17 IoBeg First year of operation
End Date
1-18 IoEnd Last year of operation
Monthly Data
Free Format (Include only if the variable (dumx) = 12 or less than -12)
2-1 imonsw(1) Monthly switch 0 = off, 1 = on
+n = Day first used that month
-n = Day last used that month
Note the first entry corresponds to the first month specified in the control file