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Amended Costilla Creek compact.
                                                                      

     37-68-101.  Amended Costilla Creek compact. The general assembly hereby 

 ratifies the amended compact between the state of Colorado and the state of New 

 Mexico, designated as the "Amended Costilla Creek Compact", signed in the city 

 of Santa Fe, state of New Mexico, on the seventh day of February, A. D. 1963, 

 by J. E. Whitten, commissioner for the state of Colorado, and S. E. Reynolds, 

 commissioner for the state of New Mexico, which said amended compact is as 

 follows: 

                         Amended Costilla Creek Compact 

      The state of Colorado and the state of New Mexico, parties signatory to 

 this compact (hereinafter referred to as "Colorado" and "New Mexico," 

 respectively, or individually as a "state," or collectively as the "states"), 

 having on September 30, 1944 concluded, through their duly authorized 

 commissioners, to-wit: Clifford H. Stone for Colorado and Thomas M. McClure for 

 New Mexico, a compact with respect to the water of Costilla Creek, an 

 interstate stream, which compact was ratified by the states in 1945 and was 

 approved by the congress of the United States in 1946; and 

      The states, having resolved to conclude an amended compact with respect to 

 the waters of Costilla Creek, have designated, pursuant to the acts of their 

 respective legislatures and through their appropriate executive agencies, as 

 their commissioners: 

      J. E. Whitten, for Colorado 

      S. E. Reynolds, for New Mexico 

 who, after negotiations, have agreed upon these articles: 

                                    Article I 

      The major purposes of this compact are to provide for the equitable 

 division and apportionment of the use of the waters of Costilla Creek; to 

 promote interstate comity; to remove causes of present and future interstate 

 controversies; to assure the most efficient utilization of the waters of 

 Costilla Creek; to provide for the integrated operation of existing and 

 prospective irrigation facilities on the stream in the two states; to adjust 

 the conflicting jurisdictions of the two states over irrigation works and 

 facilities diverting and storing waters in one state for use in both states; to 

 equalize the benefits of water from Costilla Creek, used for the irrigation of 

 contiguous lands lying on either side of the Boundary, between the citizens and 

 water users of one state and those of the other; and to place the beneficial 

 application of water diverted from Costilla Creek for irrigation by the water 

 users of the two states on a common basis. 

      The physical and other conditions peculiar to the Costilla Creek and its 

 basin, and the nature and location of the irrigation development and the 

 facilities in connection therewith, constitute the basis for this compact; and 

 neither of the States hereby, nor the Congress of the United States by its 

 consent, concedes that this compact establishes any general principle or 

 precedent with respect to any other interstate stream. 

                                   Article II 

      As used in this compact, the following names, terms and expressions are 

 described, defined, applied and taken to mean as in this article set forth: 

      (a)  "Costilla Creek" is a tributary of the Rio Grande which rises on the 

 west slope of the Sangre de Cristo range in the extreme southeastern corner of 

 Costilla County in Colorado and flows in a general westerly direction crossing 

 the boundary three times above its confluence with the Rio Grande in New 

 Mexico. 

      (b)  The "Canyon Mouth" is that point on Costilla Creek in New Mexico 

 where the stream leaves the mountains and emerges into the San Luis Valley. 

      (c)  The "Amalia Area" is that irrigated area in New Mexico above the 

 Canyon Mouth and below the Costilla Reservoir which is served by decreed direct 

 flow water rights. 

      (d)  The "Costilla-Garcia Area" is that area extending from the Canyon 

 Mouth in New Mexico to a point in Colorado about four miles downstream from the 

 boundary, being a compact body of irrigated land on either side of Costilla 

 Creek served by decreed direct flow water rights. 

      (e)  The "Eastdale Reservoir No. 1" is that off-channel reservoir located 

 in Colorado in sections 7, 8 and 18, township 1 north, range 73 west, and 

 sections 12 and 13, township 1 north, range 74 west, of the Costilla Estates 

 survey, with a nominal capacity of three thousand four hundred sixty-eight 

 (3,468) acre-feet and a present usable capacity of two thousand (2,000) 

 acre-feet. 

      (f)  The "Eastdale Reservoir No. 2" is that off-channel reservoir located 

 in Colorado in sections 3, 4, 9 and 10, township 1 north, range 73 west, of the 

 Costilla Estates survey, with nominal capacity of three thousand forty-one 

 (3,041) acre-feet. 

      (g)  The "Costilla Reservoir" is that channel reservoir, having a nominal 

 capacity of fifteen thousand seven hundred (15,700) acre-feet, located in New 

 Mexico near the headwaters of Costilla Creek.  The present usable capacity of 

 the reservoir is eleven thousand (11,000) acre-feet, subject to future 

 adjustment by the state engineer of New Mexico.  The condition of Costilla Dam 

 may be such that the state engineer of New Mexico will not permit storage above 

 a determined stage except for short periods of time. 

      (h)  The "Cerro Canal" is that irrigation canal which diverts water from 

 the left bank of Costilla Creek in New Mexico near the southwest corner of 

 section 12, township 1 south, range 73 west, of the Costilla Estates survey, 

 and runs in a northwesterly direction to the boundary near Boundary Monument 

 No.  140. 

      (i)  The "boundary" is the term used herein to describe the common 

 boundary line between Colorado and New Mexico. 

      (j)  The term "Costilla Reservoir System" means and includes the Costilla 

 Reservoir and the Cerro Canal, the permits for the storage of water in Costilla 

 Reservoir, the twenty-four and fifty-two hundredths (24.52) cubic feet per 

 second of time of direct flow water rights transferred to the Cerro Canal, and 

 the permits for the diversion of direct flow water by the Cerro Canal as 

 adjusted herein to seventy-five and forty-eight hundredths (75.48) cubic feet 

 per second of time. 

      (k)  The term "Costilla Reservoir System Safe Yield" means that quantity 

 of usable water made available each year by the Costilla Reservoir System. The 

 safe yield represents the most beneficial operation of the Costilla Reservoir 

 System through the use, first, of the total usable portion of the yield of the 

 twenty-four and fifty-two hundredths (24.52) cubic feet per second of time of 

 direct flow rights transferred to the Cerro Canal, second, of the total usable 

 portion of the yield of the direct flow Cerro Canal permits, and third, of that 

 portion of the water stored in Costilla Reservoir required to complete such 

 safe yield. 

      (l)  The term "usable capacity" is defined and means that capacity of 

 Costilla Reservoir at the stage above which the state engineer of New Mexico 

 will not permit storage except for short periods of time. 

      (m)  The term "temporary storage" is defined and means the water permitted 

 by the state engineer of New Mexico to be stored in Costilla Reservoir for 

 short periods of time above the usable capacity of that reservoir. 

      (n)  The term "additional storage facilities" is defined and means storage 

 capacity which may be provided in either state to impound waters of Costilla 

 Creek and its tributaries in addition to the nominal capacity of Costilla 

 Reservoir and the Costilla Creek complement of the Eastdale Reservoir No. 1 

 capacity. 

      (o)  The term "duty of water" is defined as the rate in cubic feet per 

 second of time at which water may be diverted at the headgate to irrigate a 

 specified acreage of land during the period of maximum requirement. 

      (p)  The term "surplus water" is defined and means water which cannot be 

 stored in operating reservoirs during the storage season or water during the 

 irrigation season which cannot be stored in operating reservoirs and which is 

 in excess of the aggregate direct flow rights and permits recognized by this 

 compact. 

      (q)  The term "irrigation season" is defined and means that period of each 

 calendar year from May 16 to September 30, inclusive. 

      (r)  The term "storage season" is defined and means that period of time 

 extending from October 1 of one year to May 15 of the succeeding year, 

 inclusive. 

      (s)  The term "points of interstate delivery" means and includes (1) the 

 Acequia Madre where it crosses the boundary; (2) the Costilla Creek where it 

 crosses the boundary; (3) the Cerro Canal where it reaches the boundary; and 

 (4) any other interstate canals which might be constructed with the approval of 

 the commission at the point or points where they cross the boundary. 

      (t)  The term "water company" means The San Luis Power and Water Company, 

 a Colorado corporation, or its successor. 

      (u)  The word "commission" means the Costilla Creek Compact commission 

 created by Article VIII of this compact for the administration thereof. 

                                   Article III 

      1.  To accomplish the purposes of this compact, as set forth in Article I, 

 the following adjustments in the operation of irrigation facilities on Costilla 

 Creek, and in the use of water diverted, stored and regulated thereby, are 

 made: 

      (a)  The quantity of water delivered for use in the two states by direct 

 flow ditches in the Costilla-Garcia Area and by the Cerro Canal is based on a 

 duty of water of one cubic foot per second of time for each eighty (80) acres, 

 to be applied in the order of priority; provided, however, that this adjustment 

 in each instance is based on the acreage as determined by the court in 

 decreeing the water rights for the Costilla-Garcia Area, and in the case of the 

 Cerro Canal such basis shall apply to eight thousand (8,000) acres of land.  In 

 order to better maintain a usable head for the diversion of water for 

 beneficial consumptive use the adjusted maximum diversion rate under the water 

 right of each of the ditches supplying water for the Costilla-Garcia Area in 

 Colorado is not less than one cubic foot per second of time. 

      (b)  There is transferred from certain ditches in the Costilla-Garcia Area 

 twenty-four and fifty-two hundredths (24.52) cubic feet per second of time of 

 direct flow water rights, which rights of use are held by the water company or 

 its successors in title, to the headgate of the Cerro Canal.  The twenty-four 

 and fifty-two hundredths (24.52) cubic feet of water per second of time hereby 

 transferred represents an evaluation of these rights after adjustment in the 

 duty of water, pursuant to subsection (a) of this Article, and includes a 

 reduction thereof to compensate for increased use of direct flow water which 

 otherwise would have been possible under these rights by this transfer. 

      (c)  Except for the rights to store water from Costilla Creek in Eastdale 

 Reservoir No. 1 as hereinafter provided, all diversion and storage rights from 

 Costilla Creek for Eastdale Reservoirs No. 1 and No. 2 are relinquished and the 

 water decreed thereunder is returned to the creek for use in accordance with 

 the plan of integrated operation effectuated by this compact. 

      (d)  The Cerro Canal direct flow permit shall be seventy-five and 

 forty-eight hundredths (75.48) cubic feet per second of time. 

      (e)  There is transferred to and made available for the irrigation of 

 lands in Colorado a portion of the Costilla Reservoir complement of the 

 Costilla Reservoir System Safe Yield in order that the storage of water in that 

 reservoir may be made for the benefit of water users in both Colorado and New 

 Mexico under the provisions of this compact for the allocations of water and 

 the operation of facilities. 

      2.  Each state grants for the benefit of the other and its water users the 

 rights to change the points of diversion of water from Costilla Creek, to 

 divert water from the stream in one state for use in the other and to store 

 water in one state for the irrigation of lands in the other, insofar as the 

 exercise of such rights may be necessary to effectuate the provisions of this 

 Article and to comply with the terms of this compact. 

      3.  The water company has consented to and approved the adjustments 

 contained in this Article; and such consent and approval shall be evidenced in 

 writing and filed with the commission. 

                                   Article IV 

      The apportionment and allocation of the use of Costilla Creek water shall 

 be as follows: 

      (a)  There is allocated for diversion from the natural flow of Costilla 

 Creek and its tributaries sufficient water for beneficial use on meadow and 

 pasture lands above Costilla Reservoir in New Mexico to the extent and in the 

 manner now prevailing in that area. 

      (b)  There is allocated for diversion from the natural flow of Costilla 

 Creek and its tributaries thirteen and forty-two hundredths (13.42) cubic feet 

 of water per second of time for beneficial use on lands in the Amalia Area in 

 New Mexico. 

      (c)  In addition to allocations made in subsections (e), (f) and (g) of 

 this Article, there is allocated for diversion from the natural flow of 

 Costilla Creek fifty and sixty-two hundredths (50.62) cubic feet of water per 

 second of time for Colorado and eighty-nine and eight hundredths (89.08) cubic 

 feet of water per second of time for New Mexico, subject to adjustment as 

 provided in Article V (e), and such water shall be delivered for beneficial use 

 in the two states in accordance with the schedules and under the conditions set 

 forth in Article V. 

      (d)  There is allocated for diversion from the natural flow of Costilla 

 Creek sufficient water to provide each year one thousand (1,000) acre-feet of 

 stored water in Eastdale Reservoir No. 1, such water to be delivered as 

 provided in Article V. 

      (e)  There is allocated for diversion to Colorado thirty-six and 

 five-tenths per cent (36.5%) and to New Mexico sixty-three and five-tenths per 

 cent (63.5%) of the water stored by Costilla Reservoir for release therefrom 

 for irrigation purposes each year, subject to adjustment as provided in Article 

 V (e) and such water shall be delivered for beneficial use in the two states on 

 a parity basis in accordance with the provisions of Article V.  By "parity 

 basis" is meant that neither state shall enjoy a priority of right of use. 

      (f)  There is allocated for beneficial use in each of the states of 

 Colorado and New Mexico one-half of the surplus water, as defined in Article II 

 (p), to be delivered as provided in Article V. 

      (g)  There is allocated for beneficial use in each of the states of 

 Colorado and New Mexico one-half of any water made available and usable by 

 additional storage facilities which may be constructed in the future. 

                                    Article V 

      The operation of the facilities of Costilla Creek and the delivery of 

 water for the irrigation of land in Colorado and New Mexico, in accordance with 

 the allocations made in Article IV, shall be as follows: 

      (a)  Diversions of water for use on lands in the Amalia Area shall be made 

 as set forth in Article IV (b) in the order of decreed priorities in New Mexico 

 and of relative priority dates in the two states, subject to the right of New 

 Mexico to change the points of diversion and places of use of any of such water 

 to other points of diversion and places of use; provided, however, that the 

 rights so transferred shall be limited in each instance to the quantity of 

 water actually consumed on the lands from which the right is transferred. _ 

      (b)  Deliveries to Colorado of direct flow water below the Canyon Mouth 

 shall be made by New Mexico in accordance with the following schedule: 

      Deliveries of Direct Flow Water to Colorado During Irrigation Season 

                                        _ 

   Usable 

 Discharge Incremental           Cumulative 

 of Creek aAllocationsPoints of  Allocations              Remarks 

   Canyon  to ColoradoInterstate to Colorado 

   Mouth    (C.F.S.)   Delivery   (C.F.S.) 

   Gaging 

  Station 

  (C.F.S.) 

 _ 

    (1)    (2A)  (2B)    (3)         (4)                     (5) 

 _ 

                       Acequia 

   25.00    1.05        Madre                Incremental allocation is 4.2% of 

                                             the usable discharge when usable 

                                             discharge is less than 25.00 

                                             C.F.S. 

            2.53      Cerro Canal            Incremental allocation is 10.13% 

                                             of the usable discharge when 

                                             usable discharge is less than 

                                             25.00 C.F.S. 

            4.70      Cerro Canal   8.28     This 4.70 C.F.S. is not a part of 

                                             the Colorado allocation of the 

                                             direct flow water of the Costilla 

                                             Reservoir System and is not 

                                             subject to adjustment in the 

                                             event of a change in the usable 

                                             capacity of Costilla Reservoir. 

                                             Incremental allocation is 18.8% 

                                             of the usable discharge when 

                                             usable discharge is less than 

                                             25.00 C.F.S.  This 4.70 C.F.S. 

                                             allocated to Colorado for 

                                             delivery through the Cerro Canal 

                                             is 5.50 C.F.S. of the original 

                                             6.55 C.F.S. allocated to Colorado 

                                             for delivery through the Acequia 

                                             Madre less 0.8 C.F.S. correction 

                                             for losses. 

   Usable 

 Discharge Incremental           Cumulative 

 of Creek aAllocationsPoints of  Allocations              Remarks 

   Canyon  to ColoradoInterstate to Colorado 

   Mouth    (C.F.S.)   Delivery   (C.F.S.) 

   Gaging 

  Station 

  (C.F.S.) 

 _ 

    (1)    (2A)  (2B)    (3)         (4)                     (5) 

 _ 

   36.88     .38      Cerro Canal            This 0.38 C.F.S. is not a part of 

                                             the Colorado allocation of the 

                                             direct flow water of the Costilla 

                                             Reservoir System and is not 

                                             subject to adjustment in the 

                                             event of a change in the usable 

                                             capacity of Costilla Reservoir. 

                                             Incremental allocation is 3.26% 

                                             of the usable discharge in excess 

                                             of 25.38 C.F.S. and less than 

                                             36.88 C.F.S. 

            4.04      Cerro Canal   12.70    Incremental allocation is 35.11% 

                                             of the usable discharge in excess 

                                             of 25.38 C.F.S. and less than 

                                             36.88 C.F.S. 

   38.62        1.00    Creek       13.70    Incremental allocation is 100% of 

                                             the usable discharge in excess of 

                                             37.62 C.F.S. and less than 38.62 

                                             C.F.S. 

   44.76    2.24      Cerro Canal   15.94    Incremental allocation is 36.5% 

                                             of the usable discharge in excess 

                                             of 38.62 C.F.S. and less than 

                                             44.76 C.F.S. 

   50.91        6.00    Creek       21.94    Incremental allocation is 100% of 

                                             the usable discharge in excess of 

                                             44.91 C.F.S. and less than 50.91 

                                             C.F.S. 

   56.48     .13      Cerro Canal   22.07    Incremental allocation is 11.18% 

                                             of the usable discharge in excess 

                                             of 55.35 C.F.S. and less than 

                                             56.48 C.F.S. 

   61.48        1.00    Creek       23.07    Incremental allocation is 100% of 

                                             the usable discharge in excess of 

                                             60.48 C.F.S. and less than 61.48 

                                             C.F.S. 

   64.22                                     At usable creek discharge of 

                                             64.22 C.F.S. the Cerro Canal 

                                             direct flow permit becomes 

                                             operative after 1,000 acre-feet 

                                             has been stored in Eastdale 

   Usable 

 Discharge Incremental           Cumulative 

 of Creek aAllocationsPoints of  Allocations              Remarks 

   Canyon  to ColoradoInterstate to Colorado 

   Mouth    (C.F.S.)   Delivery   (C.F.S.) 

   Gaging 

  Station 

  (C.F.S.) 

 _ 

    (1)    (2A)  (2B)    (3)         (4)                     (5) 

 _ 

                                             Reservoir No. 1. 

   139.70  27.55      Cerro Canal   50.62    Incremental allocation is 36.5% 

                                             of the usable discharge in excess 

                                             of 64.22 C.F.S. and less than 

                                             139.70 C.F.S. 

 _ 

      The actual discharges of Costilla Creek at the Canyon Mouth Gaging Station 

 at which the various blocks of direct flow water become effective shall equal 

 the flows set forth in column (1) increased by the transmission losses 

 necessary to deliver those flows to the headgates of the respective direct flow 

 ditches diverting in New Mexico. 

      The delivery of ditch water at the boundary shall equal the allocation set 

 forth in columns (2a) and (2b) reduced by the transmission losses between the 

 headgate of the ditch and the point where the ditch crosses the boundary.  The 

 allocations to be delivered to Colorado through the Cerro Canal represent, 

 except as otherwise indicated in column (5) of the table above, 36.5 percent of 

 those blocks of direct flow water of the Costilla Reservoir System which are 

 subject to adjustment as provided in subsection (e) of this article. 

      The provisions of article III (1) (a) shall not be applicable to the 

 Colorado allocation of 5.08 C.F.S. which is transferred from the Acequia Madre 

 to the Cerro Canal by this amendment to the Costilla Creek compact and shall 

 not be applicable to the 0.8 C.F.S. which is transferred from Colorado to New 

 Mexico by this amendment to the Costilla Creek compact. 

      The above table is compiled on the basis of the delivery to Colorado at 

 the boundary of thirty-six and five-tenths percent (36.5%) of all direct flow 

 water of the Costilla Reservoir System diverted by the Cerro Canal and the 

 delivery at the boundary of all other direct flow water allocated to Colorado, 

 in the order of priority, all such deliveries to be adjusted for transmission 

 losses.  In the event of change in the usable capacity of the Costilla 

 Reservoir, Colorado's share of all direct flow water of the Costilla Reservoir 

 System diverted by the Cerro Canal, to be delivered at the boundary and 

 adjusted for transmission losses, shall be determined by the percentages set 

 forth in column (4) of the table which appears in subsection (e) of this 

 article. 

      (c)  During the storage season, no water shall be diverted under direct 

 flow rights unless there is water in excess of the demand of all operating 

 reservoirs for water from Costilla Creek for storage. 

      (d)  In order to assure the most efficient utilization of the available 

 water supply, the filling of Eastdale Reservoir No.  1 from Costilla Creek 

 shall be commenced as early in the spring as possible and shall be completed as 

 soon thereafter as possible.  The Cerro Canal or any other ditch which may be 

 provided for that purpose shall be used, insofar as practicable, to convey the 

 water from the Canyon Mouth to Eastdale Reservoir No. 1.  During any season 

 when the commission determines that there will be no surplus water, any 

 diversions, waste or spill from any canal or canals supplying Eastdale 

 Reservoir No.  1 will be charged to the quantity of water diverted for delivery 

 to said reservoir. 

      (e)  The commission shall estimate each year the safe yield of Costilla 

 Reservoir System and its component parts as far in advance of the irrigation 

 season as possible, and shall review and revise such estimates from time to 

 time as may be necessary. _ 

      In the event the usable capacity of the Costilla Reservoir changes, the 

 average safe yield and the equitable division thereof between the states shall 

 be determined in accordance with the following table: 

   Usable       Average 

  Capacity      Annual                    Division of Safe Yield 

 of Costilla   Safe Yield         Colorado                   New Mexico 

  Reservoir   (acre-feet)  (acre-feet)    (percent)   (acre-feet)   (percent) 

     (1)          (2)          (3)           (4)          (5)          (6) 

        0        1,800        1,510         83.9           290        16.1 

    1,000        3,400        2,000         58.8         1,400        41.2 

    2,000        4,900        2,450         50.0         2,450        50.0 

    3,000        6,400        2,910         45.5         3,490        54.5 

    4,000        7,900        3,370         42.7         4,530        57.3 

    5,000        9,300        3,800         40.9         5,500        59.1 

    6,000       10,700        4,220         39.4         6,480        60.6 

    7,000       12,000        4,620         38.5         7,380        61.5 

    8,000       13,200        4,990         37.8         8,210        62.2 

    9,000       14,300        5,320         37.2         8,980        62.8 

   10,000       15,200        5,600         36.8         9,600        63.2 

   11,000       16,000        5,840         36.5        10,160        63.5 

   12,000       16,600        6,020         36.3        10,580        63.7 

   13,000       17,000        6,140         36.1        10,860        63.9 

   14,000       17,400        6,270         36.0        11,130        64.0 

   15,000       17,700        6,360         35.9        11,340        64.1 

   15,700       17,900        6,420         35.9        11,480        64.1 

      Intermediate quantities shall be computed by proportionate parts. 

 _ 

      In the event of change in the usable capacity of the Costilla Reservoir, 

 the Costilla Reservoir complement of the Costilla Reservoir System Safe Yield 

 shall be divided between Colorado and New Mexico in accordance with the 

 percentages given in columns 4 and 6, respectively, of the above table. 

      Each state may draw from the reservoir in accordance with the allocations 

 made herein, up to its proportion of the Costilla Reservoir complement of the 

 Costilla Reservoir System Safe Yield and its proportion of temporary storage 

 and no more.  Colorado may call for the delivery of its share thereof at any of 

 the specified points of interstate delivery. 

      Deliveries of water from Costilla Reservoir to the Canyon Mouth shall be 

 adjusted for transmission losses, if any, between the two points. Deliveries to 

 Colorado at the boundary shall be further adjusted for transmission losses from 

 the Canyon Mouth to the respective points of interstate delivery. 

      Water stored in Costilla Reservoir and not released during the current 

 season shall not be held over to the credit of either state but shall be 

 apportioned when the safe yield is subsequently determined. 

      (f)  The Colorado apportionment of surplus water, as allocated in Article 

 IV (f), shall be delivered by New Mexico at such points of interstate delivery 

 and in the respective quantities, subject to transmission losses, requested by 

 the Colorado member of the commission. 

      (g)  In the event that additional water becomes usable by the construction 

 of additional storage facilities, such water shall be made available to each 

 state in accordance with rules and regulations to be prescribed by the 

 commission. 

      (h)  When it appears to the commission that any part of the water 

 allocated to one state for use in a particular year will not be used by that 

 state, the commission may permit its use by the other state during that year, 

 provided that a permanent right to the use of such water shall not thereby be 

 established. 

                                   Article VI 

      The desirability of consolidating various of the direct flow ditches 

 serving the Costilla-Garcia Area, which are now or which would become 

 interstate in character by consolidation, and diverting the water available to 

 such ditches through a common headgate is recognized.  Should the owners of any 

 of such ditches, or a combination of them, desire to effectuate a consolidation 

 and provide for a common headgate diversion, application therefor shall be made 

 to the commission which, after review of the plans submitted, may grant 

 permission to make such consolidation. 

                                   Article VII 

      The commission shall cause to be maintained and operated a 

 streamgaging-station, equipped with an automatic water-stage recorder, at each 

 of the following points, to-wit: 

      (a)  On Costilla Creek immediately below Costilla Reservoir. 

      (b)  On Costilla Creek at or near the Canyon Mouth above the headgate of 

 Cerro Canal and below the Amalia Area. 

      (c)  On Costilla Creek at or near the boundary. 

      (d)  On the Cerro Canal immediately below its headgate. 

      (e)  On the Cerro Canal at or near the boundary. 

      (f)  On the intake from Costilla Creek to the Eastdale Reservoir No. 1, 

 immediately above the point where the intake discharges into the reservoir. 

      (g)  On the Acequia Madre immediately below its headgate. 

      (h)  On the Acequia Madre at the boundary. 

      (i)  Similar gaging stations shall be maintained and operated at such 

 other points as may be necessary in the discretion of the commission for the 

 securing of records required for the carrying out of the provisions of the 

 compact. 

      Such gaging stations shall be equipped, maintained, and operated by the 

 commission directly or in cooperation with an appropriate federal or state 

 agency, and the equipment, method, and frequency of measurement at such 

 stations shall be such as to produce reliable records at all times. 

                                  Article VIII 

      The two states shall administer this compact through the official in each 

 state who is now or may hereafter be charged with the duty of administering the 

 public water supplies, and such officials shall constitute the Costilla Creek 

 Compact Commission.  In addition to the powers and duties hereinbefore 

 specifically conferred upon such commission, the commission shall collect and 

 correlate factual data and maintain records having a bearing upon the 

 administration of this compact.  In connection therewith, the commission may 

 employ such engineering and other assistance as may be reasonably necessary 

 within the limits of funds provided for that purpose by the states.  The 

 commission may, by unanimous action, adopt rules and regulations consistent 

 with the provisions of this compact to govern its proceedings.  The salaries 

 and expenses of the members of the commission shall be paid by their respective 

 states.  Other expenses incident to the administration of the compact, 

 including the employment of engineering or other assistance and the 

 establishment and maintenance of compact gaging stations, not borne by the 

 United States shall be assumed equally by the two states and paid directly to 

 the commission upon vouchers submitted for that purpose. 

      The United States geological survey, or whatever federal agency may 

 succeed to the functions and duties of that agency, shall collaborate with the 

 commission in the correlation and publication of water facts necessary for the 

 proper administration of this compact. 

                                   Article IX 

      This amended compact shall become operative when ratified by the 

 legislatures of the signatory states and consented to by the Congress of the 

 United States; provided, that, except as changed herein, the provisions, terms, 

 conditions and obligations of the Costilla Creek Compact executed on September 

 30, 1944, continue in full force and effect. 

      IN WITNESS WHEREOF, the commissioners have signed this compact in 

 triplicate original, one copy of which shall be deposited in the archives of 

 the department of state of the United States of America, and one copy of which 

 shall be forwarded to the governor of each of the signatory states. 

      Done in the city of Santa Fe, New Mexico, on the 7th day of February, in 

 the year of our Lord, one thousand nine hundred and sixty-three. 

                                                         (Signed) J. E. Whitten, 

                                                      Commissioner for Colorado. 

                                                        (Signed) S. E. Reynolds, 

                                                    Commissioner for New Mexico. 

 
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