C\

Department of StateLrntcrnationa1 Water CO~~ission

(united States and Mexico...-J

I2...-qIGA.'I'IOU It'ROL. COLORADO -qIVl!.'RIN LO'r7ER CALIFORNIA

l!'rc...nk AdamsJune 1928.

JJLU~ V ~ITY 0-

~

\,

[ ]/

Department 0 f stateInternational Water Commission

Uni ted stat es and Kexioo

ntRIGATION FROM COLORADO RIVm III LOWER CALU'ORNIA

Frank Adams

JUne. 1928.

Contents

Introduator,v - - - - - - - - - - - - - - - - - - - - - - - 1Relationship between use of water from Colorado River in

lIex100 and.Use of Water from Colorado River in ImperialVallel, Callioruia.- - - - - - - - - - - - - - _ - _ _ _ 1

Land ownership south 0 f the Internat lonal boundarl - - 3Irri able lands along Colorado River in Mexioo - - - - - - _ - 7Areas irrigated from Colorado River in Mexioo - - - - - - _ _ 11Quant 1tl of water used from Colorado River in Lower Callf. - _ 14Pump diversions from ~perla1 Canal system in Mex100 - - - - _ 18Irrigation from walls - - - - - __ - - - - 19Installation ot siphons at Pesoadero Out- _Use 0f Water in Lower Oalifornia- _ _ _ _ _ _ _ _ 21Duty of water in Mexioo- - 23Summar~-- - - - - - - - - _ _ _ 25

Appendix I.Daily diverlions from Colorado River at Hanlon Heading and

Deliveries to Lands in the United states and Mexioo - - - - 28

IllustrationsSiPhon installation at Pesoadero Cut- - - - - - - - - - - - - 201Map of Lands Irrigable and Irrigated trom Colorado River in

Lower California.- - - - - - - - - - - - - - - - - - - _ _ _ Pooket

Department of stateInternatIonal Water Oommission

United States and Mexico

USE OF WAT1'R FROM COLORADO RIVER IN MEXICO

by Frank Adams

Introduotory

During the period April, 1926, to June, 1927, the writer made certain

speoial investigations into irrigation from Oo Io rado River below Needles,

Oalifornia, for the Bureau of Reolamation, United States Department of the

Interior, under instructions from the Oommissioner of Reolamation, and a

progress report was submitted in June, 1927. The present report, dealing

only with the use of water from Colorado River in Mexioo, and made for the

International Water Oommission, United States and Y~xioo, under instructions

from the Chairman of the American Seotion of that CommisSion, is based mainly

on additional investigations during the months of April, 1my. and June, 1928.

Although prepared under different auspices, this later report is in faotsupplemental to the previous report. However, in order that this reportmay be measurably complete? certain information relatinu; to the use of water

from Colorado River in Mexioo included in the previous report will be

repeated herein, either as originally presented or as revised as a resultof the later investigation.

Relationship between Use of Water from Colorado Riverin Mexico and Use of Water from ColOrado River

in Imperial Valley, Oalifornia.

Exoepting as hereinafter indicated, water for the irrigation of lands

in the lower OolOrado River Basin in Mexioo is obtained from the Imperial

Canal system along its course in Mexico from the intake in the United states

1.

Imperial Valley, in California, at points east and west of Ca1exioo anda short distanoe above the international boundary to its re-entranoe into

1Iexioa11. Delivery ot water trom this system to landa in Uexioo is oneot the oonditions ot the oonoession under whioh suoh system passes through.Mexico. This ooncession, dated ~ 17, 1904, and communicated by thePresident ot Mexioo to the seoretary of State. Development, Oolo~izationand Industry of Mexioo under date ot June 10, 1904, provides in articleseoond, tbat, ot the water authorized to be oarried througb oanals in Mexioo,"Enough shall be used to irrigate the lands susoeptible Of lrr~atlon inlAwar Oalifornia ••• without in any case the amount ot water used exoeedingone-half of the volume ot water passing through said oanals." The granteeunder this ooncession or oontract "is subject ••• to the inspeotion ot theengineer to be apPointed by the Seoretary or Development •••n FurthermOre,in artiole eighteenth, "The Oompany, grantee, is at liberty to enter intocontraots and agreements with individuals and private and public oorporationstor the use of the water granted to it, being subJeot in prices to be ohargedto the tariff whioh with due opportunit¥ shall be presented to the Seoretar,vot Development for his examination and ap'proval, the Company. grantee, havingthe right, nevertheless, to use said waters in the irrigation ot the landabelonging to it." UDder artiole twent¥-ninth, "The Oompany, grantee, shallbe subject to the laws and rulings now in force and which in the future maybe enaoted tor the supervision, use and benefit ot the water."

The original grantee under this oonoesslon was the'sooiedad de Riego yTerrenos de la Baja Calitornia, s. A.., the .Mexioan subsidiary of the OaliforniaDevelopment OomP&n¥, whioh first built the Imperial Irrigation System. Therehaa been no ohange in this contraot, whioh, in the opinion of the Mexioanattorney of Imperial Irrigation Dietriot (Mr. J. Baroenas) in Mexioal!, Is

-2-

in itself a law because submitted by the President of Mexioo to the Oongress

Of Mexico and approved by it. Following finanoial reorga.nization of the

system, a new Mexioan Company, the Oompan.Ia de Terrenos y AgUas de 1a Baja

California, S. A.!. succeeded to the rights under the conceaaton., and this

Mexioan oompany became a subsidiary of Imperial Irrigation District, whioh

in due cour-se has a.oquired ownership 0 f Imperial Oanal and its various workst

as well as ownership of all of' the oapital stock of the Compania de Terrenos

y Aguas de le.Baja Oalifornia, S. A.

Imperial Irrigation District, aating through the subsidiary "oompania.",

delivers w~ter for the irrigation of lands on demand. Delivery in Mexico is

made from the main canals of the system, all laterals being built by and at

the expense of the Mexican water users. The cana ls in Mexico from whioh

deliyerles are made are the Ala"llo. IBa.stHigh Line, Mesa, CarrillO Bend.

East Side Main, solfatara., south Alamo, Ash, Alamitos, Oontra.l Main, Woodbine,

Wormwood, Oerro Prietof West Side 1min. Wistaria, and Enclna, the largest

use baing from the Alamo, Solfatara, Wormwood. Cerro Prieto. and WestSide Main.Until MarOh 10, 1928, and aside from small quantities of water used by

a fEWi Mexioan or Indian squatters in the lower delta, a few relatively small

pumpiU$ plants, and about 1350 aores, out of 2666 acres, being supplied by

wells on the Paul Williams traot near Cuervos Station on the Inter-California

Railroad, all water used from COlorado River in Mexico for irrigation has been

obt~ined, as above indioated, from the Imperial irrigation system~ On March 10,

1928. however, the first units of a battery of siphons being installed at the

upperendot Pesoadero Out by Delta Canal compallYt under permit from Colorado

River Land OompaQYt were started in service. These siphonst and the conditions

of theirln~~~~lation, will be referred to later.Land Ovmership South of the International Boundary

It was found impossible to obtain a.o Iear idea of the i rrigable and the-3-

Irrigated lands south ot the international boundary without first seouring

Intor,mation regarding at least the larger and more Unportant land ownership ••

The larger part of the irrigable land in the delta south of the 1nte1'-

national boundarlis owned by the Oolorado River Land Comp8.D¥.S. A., their

total present hol<Unga approximat1ug 800,000 aores. The original holding of

whioh this 600,000 acres waB a part oontained 832,337 acres. and, acoordlng

to 1Ir. H. H. Clark, General Manager ot the Oolorado River Land ComP&n¥,waa

purOhased outright trom the Mexioan Government in 1898 by the California-

Mexioan Land and oattle ComPaI1¥.predeoessor ot the present oompany_ Three

paroel. of this land had been 801d up to 1927, oontaining in all 32 ,000 sores.

Of th1B 8000 acres is owned by the Shintanl Comp8J13',7000 aores by W. C. Allen

(Globe Mills Oomp~), 16,000 acres by the Dnperial Development Oompany

(Cudahay Ranoh) , and approximately 1000 acres by the Mexioan' Government.

A beginni~ was made in 1927-28 1n subdivision and sale ot some of the 800,000

aores remaining to the Oolorado River Land Compan.Y',but the amount disposed of

at this writing has been only about 100 aorea. Of this 800,000 aores, approx-

!mately 132,000 &ores is olal8ed by the OomP&D¥as mountain and desert, leaving

about 668,000 acres In the Delta proper.

Next to Oolorado River Land Oomj)B.nythe largest ho1diIl€ ot landa louth

of the international bOundary is that of the Oompania de Terrenos y a8 de

1& Baja California, S. A., a subSidiary ot the Southern Pacitic Oompat1¥."

This property 1s part 0 f an approximately 100,000 aore tract purohased in

'*P;ior-totheturnln€'ot-OO'lorWlORl;er(i'oW"n-the-pescaderO-Oh,mnel-aid-while-the Voloano Lake bed was oovered with water a question was raised by theJlexioan Government as to the ownership of that area bl the Colorado River LandOomp8ll8_ The title Of the oompanywas oonfirmed, however, but in oonnectionwith the settlement it released to the Mexioan Government an area ot 3613 acreeeast of Cerro Rrieto oanal and west ot El Progres8o oolonies •

•• The Southern Paoific Companyoperates in Mexioo in oonneotion with these land,

subsidiary, the "old" Jlexioan Oompan,y,but largely retained by the SOl1thern

earq days trom G. Andrade b¥ the OaUfornia Development OomP8l1¥,through ita

Paoific Oomp&n1,through re-purohase at auotion, at the time at the financial

the east to a north and south line about four miles west of Oalexico and

reorganizat ion ot the systellt. This tract lles between the international bounda17

and the Hunt sl1rvey or "0. D." line and approximately from Oolorado River on

Kexical1, not including the Andrade Estate lands, whioh are largely mesa. A

considerable portion of this area hal been Bold, the portion still remaining

in the hands of the Southern Pacifio CompSllf(Compania de Terrenos ¥ Aguas de

la Baja California, S. A.I, approximating 28,500 acres. About 12,600 acree of

the original Andrade traot (99,848 acres) haa been lold by the Southern Pacifio

OompaD3to the Mexican Government tor oolonization purposes, the area thus

disposed of oomprising the western portion of the original tract, beginning

approximatel,y opposite monwnentNo. 216 on the international boundary.

The statements in the preoeding paragraph aooount for most of the area

between the international boundar,y and the Hunt or "0. D." line wi th the

exoeption of the following: The Paokard Traot, near Kexicali, owned by the

to the Andrade Estate; the ItAndrade lands" between an old and the present

)ft. Signal Land and Oattle CompaD¥;the mesa and other undeveloped areal north

ot the Southern Pacifio Companyholdings east ot )fonument217, and belonging

ohannel of the Alamo southerl¥ trom Monuments210 to 212, as to which ownership

is oontested but whioh are at present in oontrol of the Daugherty Estate of

San Franoisoo; and the lands sold by the Southern Pacifio Oompany,other than

that sold to the Mexioan Government. A general tabulation of all of the above

lands folloWB in Table No.1.unde; the sameaompaiy -that oper;tes-the-ImP;rlal OMal iy;t;m-ior-I;P-;rlal-Irrigat ion District. This in acoordanoe with an agreement with ImperialIrrigation Distriot.

-5-

Table No. l.--Summary of Land Ownership in theOolorado River Delta in Lower Oalifornia.(In round numbers},

Owners Gross areas. acr'ea,

Oolorado River Land Co •.t S.A. (fl1cludingapproXe 132,000 aores of mountain anddesert a.reas). • •.•.••. '" •••••• '" •.• ~ ~ ••. 800,000

SouthernPacifio Oompal1~r (Oompania deTerrenos if Aguas de 1a Baja Oalifornia, s. A.) • •.• 28,500

Mexioan Government (inoluding El ProgressoColonies, lands released to the MexioanGovernment by Colorado River Land Co. S.A.,and lands purohased from Southern PacifioCompaD3 and W. O. Allen) •.•.• ~ ••.•• ~ ••. e ••••

Globe Mills 00. (W.O. Allen and A lIen. Goh, ando 'Hashi ) • 4 •• 4 •• • ~ •• •• •• •• • • •• • • • • • • • ••

Xmperial Development Oo~ (Oudahay Ranch) ••••••• ~

12,000

16,000Shintani Ra.noh • •• •• • •• • 0 • • •. 8- .• • • • • •• • • •• 8,000Cia. Agrioola. Oivil del Va.lle Imperial

(Daugherty Estate) •.• • • • • • • • 0 • • • • • •• •

Lands sold by Southern Paoific Company(Other than to Mexioan Govermoent und toAllen, Goh. and O'HaBhi)~

Algodones Plantation Co.(We H. Harris and Son) $ • G • 2.995

Jl.1amorada Ranch Co.(Weed and Laing) • • • • • ~ • 4,262

Cuervos Development 00.(H. de liancy and 00.) •••• e . 1,657aia Agrioola Ouervos(P.E. Vi'illiams) • '" •. ~ • •• 2,666

Misoellaneous (Inoludinc roads 17,634and canals and some doubtful areae ) . . io Ii /I Ii 29,000

Andrade Estate (inoluding mesa lands) • • • • • • • • •• 50.000

Mta Signal Land and Oattle 00 ••••••• ~ ••• 0 ••

Total • ~ • • • • • • 0 • •

10.00Q.999,000

Irrigable Landa along Colorado River in Mexioo

Ho aoourate estimate of the lrrigable area in Mexico would be posdblewithout extensive and expensive detailed studies in the field. NUmerouseatmates have been made, some be 1.ng as hlB'h as 800,000 acres, exclusiveof the Sonora Mesa. which alon~~'oontains probably in excess of one hundredthousand acres whioh it would be pqa1cally possible to reach, very largelyby gravIty, through diversion at Lasuna Dam. No field oonSideration haabeen given to Sonora mesa, nor in tact to any of the lands in KeEioo eastof Oolorado River. An attempt has. however, been made to obtain an approximatecheck on the irrigable area below the international boundary as tar south aathe present irrtgation development has extended, and to make the best estimatepossible of the irrigable area still below that.

Two oourse. have been followed in approximating the lrrigable areal southof the international boundarys

(1) For the developed seotion of the area, that 18, as far south as theBee and Pesoadero ohannels,and the Rodriguez Levee, but not inoluding undevelopedSouthern Paoifio and Andrade Estate tracts between the international boundaryand the "0. D." line, use has been made Of the 1927 orop report reoords ot

Dnperial Irrigation Distriot. In these reoords the irrigable areas are thoseindioated as irrigable in the water applioations on tile in the Mexioali offioeof ]mperial Irrigation District; that Is, in the office Of Oompania de Terreno.¥- Aguas de 1a Baja Oallfornia, S. A. In BO!l)eoases the areas are stated in theapplioations as gross, in others aa net. The tabulation of these areas i.presented &8 oompiled by the subsidiary "compania" of the Distriot, arrangedby oanals from whioh they are irrigated. A second tabulation is presented withthe areas re-arranged b.1prine ipal ownerships 0r leases, and wi th someoorreotions made by the owners or 1essee8.

-7-

(2) The lands in the entire delta south ot the international bound&17

have been platted on the map whioh accompanies this report and the irrigable

lands indicated to the extent shown by the lease plats on tile with the

Oolorado River Land Oomp~. or in acoordance with information obtained

trom owners or lusHs or operating oftioials of Oompania de Terrenos "I.Aguaa de 1& Baja California, S. A., or of Oolorado River Land Company and

Delta Oanal Oomp~. The results ot this method, obtained by planimetertng,

can be considered only approximate, althoagh oare has been taken to show the

various clalsltioat ions &8 accurateq as the infonnatioD available permitted,.

For the undeveloped and unproteoted portions of the Delta south at the Beeand Pesoadero ohannels and Rodriguez Levee the boundaries Of the lrrigable

lands are as indioated b¥ the offioials of the COlorado River Land Oompany

and Delta Canal Com~any,with same oorreotions as suggested by Engineer

G. Gonzales, Ohief ot the First Zone of Waters, Department Of Agrioulture and

Development, with residence in Mexloali, Lower Oalifornia.

Table No.2. BUmnal"f of Irrigable Lands in the Deve lopedSections along Colorado River in Lower Oalitorniaas taken trom 1927 Crop Report of Compania deTerrenos :f Aguas de 18 Baja Oalifornia, S. A.(Subsidiary of Dnperial District).

(Data arranged by Prinoipal Oanals)

Alamo (including CarriloBend and East Side Main ---- 319,324Boltatara ------------------- 15,031East High Line--------------- 877Mesa --------------~---~----- 641South Alamo ------~---------- 172ASh ------------------------- 353Alamitos-------------------__ 5&0Central Main ---------------- 957west Side-1lain -------------- 1'1,316Wistaria -------------------- '~,304Enoina - -~----~------------- 1,962Wormwood -------------------- 3,079Cerro Prieto---------------__ 59.368

Total -----------415,096

Acres

-8-

Imperial Development 00. (Oudahay Ranoh) __

80.000

34,05610,315 ,;

I8.998

6,8616,381

Table No.3. summaq of Irrigable Lands in the Developed Seat ionsalong Oolorado River in Lower Oalifornia as taken trom1927 Crop Report of Compania de Terrenos '1Aguas de 1aBaja Oalifornia (n.b ldl .ot Imperial IrrigationDistriot), in part Revised by OWners or Lesaees.(Data arranged by Principal Ownerships or Lessees).

AcresColorado River Land 00.------------------- 173,643Delta Oanal 00. (Lessee at O.B.L. Oo.)--~-)le,xioan Government, iw;Jluding&1 Progre81oQolonlea------------------- _

Globe Kl118 OomPBn¥ ----- _

Southern Paoifia 00. (including small areabelongIng to the O.R.t. oo.}-------------

Ut. Signal Land and Cattle 00.------------_Small independent areas------------------ __ 22.663

Total --------------342,917

Table No.4. SUmnaryof Irrigable Area.along Colorado River inLower Oalifornia al P1anUnetered from Aooompanying Map_

AcresBorth ot Bee and Pescadero Ohannela andRodriguez Leveo. exolusive ot mesa landl;

Developed to 1928-------------- _Undeveloped --------- ~ 280,00070,000

Kesa lands direatl¥ South ot tnternationalbOWld~ry (approximately 90 per oent ottotal) ------------ ~ __ 30,000Unprotected and Undeveloped Areas South otBee and Pesoadero Ohannels and Rod~guezLevees. estimated at 70 per oent of gro.,. area(315,000) ------------------------------- 22Q.Ogg

Total ------- 600,000-9-

Reoonoll1atlon ot Dlsarepanalea in Above summaries

It w11l be noted that the total lrrigable area eiven 1n !'able 10. 2

18 lome 72,000 acres 1n exoelS ot the total in fable lIo. 3, alao that the

8WII ot the 4.".10,pe4 and Wld8'l'e1oped. areas ghen 1n 'lable No. 4 talla be-

tween the other ·two. It w111be ftmembere4 that t.he souroe Of the intor-

_'lon in Table 10. 2 is tbe applioationl tor water tUed with Oompanla

4. T.rrenol 1A8Uae4e 1&Baja OalifOrnia. 8. A., and that In lome 0•.•••

tha ar ••.• are atated. .1 gro •• and. 1n othara net. It tho 81'088 area. were

reduoed to n.et areal. the total obvloull¥ would be smaller and tend to

ap'p1"oaoh t.he figure 8iven in the seGond. 8\l1l3D1arl. ASa matter ot taot, the

oorreotlona used 1n preparation at the latter were reductions or th1a nature,

80 that the '8Oond. OWJIDary should be more nearq oorrect than the tlrat.

lurt;h'1'mOre, the total of the planimetere4 deYeloped and undeveloped ared

.a platted, 360,000 aore8, is 1n substantial aar8e!Dent with the second total.

On the 'ball. of fable. 108. :5 and 4:. therefore, 350.000 acres might be

ulumad .a an approximately oorreot figure. On the other hand. the ColoradO

River Land OomP&.nJ'eet 1ma.te. the total lrrigabl& area, developed an4 undeveloped.

louth ot the International Boundar¥ and north ot the ol'lanneia ot the Bee alXl

the P080&481'o at 460,000 acres, ~perlal lrr~atlon Distriot Itatea that

thel have had agplioattona tor water for over 400,000 acres.

It 1. to be regretted h t the aV~11nbledata do not permit of a more

oomplete reoona1l1aUon ot the figures given. However, for the purpose. ot

thla repor\.. it is believed that 400,000 fiOrea 18 a uate outside figure

to use tor the lrr!gable ares. south of the International Bounda17and nath

of the Beo and .Pe.aadero ohannels and nodrlgue. Levee, and that !leure w111

be aooepted in the final lummarl Of thla report. This is about 80 per oent

ot the totalplarilmetared area at 500,000 aorea within the exterior boundarie.

-10-

of the portion of the Delta. under ccnsfderatIon abovs , The 4009000 acres

should be assumed, however. as the gross irrigable area. inoluding land

occupied by roads. canals j levees, local waste spaeas, etc. D normally OOn-

sidered to be about 15 per cent of"the gross.Coming now to Table No. 4,which covers the entire Delta in Lower

California~ it should be made clear that the figures for the area south of

the Bee and Peacade ro ohannels and Rodriguez Levee are also neoessarily

approxdmat,ions. although as ne~l.)hy correot as the method used in a.rriving at

them permitted. The total figure, 000,000 aores , is in agreement with

indepondent estimates by the Colorado River Land Company. It should be

noted here, however, that the planimetered area south of the Bee andPescadero channels arm Rodriguez Levee makes no deduction for the ohannel

of Colorado River and will only hold true if and when the river is returned

to its old channel along the Sonora Mesa. Present new development assumes

tllat the river will flowt as now, in the general neighborhood of the Pesoadez-o

Ohannel. With the river flowing in the Pesoadero Channel areu9 the irrigable

lund probably will not exceed 150.000 to 175,000 aoreso

Areas Irrigated from Colo rado B iver in Mexioo.

Water for irrigation first reached Imperial Valley from Colorado Riverthrough the canal of the California Development Company in 1900, and, acco rd-,ing to the report of John T. Whistlerg dated November 10. 1917, appearing

in the Compilation entitled "Colorado River Basinlt on file in the JUma. officeof the Bureau of Reolamation~ water deliveries in Mexico were commenced in

1901. The amount of land irrigated from the system in that year, if a~, is

not known, nor have any data been found regarding use durint: the years 1902-1904. All references in the files of l~perial Irrigation District give 1905as the first year water was delivered in Mexioo~ FOr the years 1905 to date

-11•••

reoords are available trom the reports and files of Imperial Irrigation

Distriot, although the aoreag •• for 1906 to 1913 inclusive, were oomputed

bl dividing the average water duty in Mexioo in 1914, 1915, and 1916 Into

the total water deliveries in Mexico during 1906 to 1913. In addition to.these reoords, 80me t~e8 for oertain years have been obtained trom varioua

published or unpublished reports. While these latter fIgures are not always,

oonsistent with those in the reoorda of Imperial Irrigation Distriot, it

8eems well to inolude than in this disoussion for suoh value as they may have.

1sirlct Record of Use_Of Water from 0010£ado River

in Mexico.

'rom 1900 to June 22, 1916, when the Imperial Oanal system passed trom the

Southern Paoifio Oompany, (whioh purchased it on February 8, 1916, trom the

Receiver of the old Oalifornia Development Oompan.v)to Imperial Irrigation

Distriot and to its subsidiary, the Compania de Terrenos y Aguas de la BajaCalifornia, S.A., {the "New J4exloan Comp~ whose stock is owned boYImperial

Irrigation Distriot}, Imperial Canal was operated by the California Development

Companyin so tar as it la,y within the United States, and by its sub.WarT

Mexioan OOIDpatW (the "Old Mexioan Compan.T'), the aooiedad de Irrigaoion y

Terrenos de 1a Baja California, S. A., in so far as it l~ within Mexioo.

From June 20, 1906I to Deoember 13, 1909. both the Oalifornia Development

Compe.llland the old I18x10anOomp&D.1were under the oomplete management of the

Southern Paoifio CompaD3,owing in the first instanoe to a oertain loan of

*200,000 bl that OOJllll&ny' to the California Developnent Company. FromDeoember

13,1909, to February 8,1916, the entire oanal systemw8s operated by a

Reoeiver appointed by the Superior Oourt of Imperial Oounty. Oalifornia.

During the brief period February 8. 1916, to June 22, 1916, although operated

by ~perial Irr~ation Distriot, the propertl was owned by the Southern paoltio

-12-

Oompany through purcnas e from the reoeiver of the Oalifornia DevelopmentOompany after protracted litigation largely involving the settling ofoontroversies between the oradi tors of the old California DevelopmentoOIDpa.:t1¥ 6 Since June 23, 1916, the system has been oontrolled and operatedby Imperial Irrigation District, aotir~ directly as to property within theUnited States and through its subsidiary oompa~. the Oompania de Terrenosy Aguas de la Baja California, S~ A •• as to property in Mexioo.

The above reoital of the various changes in the oontrol of the Imperia.lirrigation system is made beoause of the light it mar throw on the recordaof use of water in Mexioo as set forth in the table below obtained fromImperial Irrigation District. Obviously the laok of oontinuity of oontro1and operation of the irrigation system must ha.ve been refleated in therecords of deliveries and use of water. However. the data in the followingtable have been gathered together by imperial Irrigation Distriot from therecords of the var tous admlnistrat ions having had oharge of the systems andthey have not. so far as is known. been quest Ioned,

Table No~ 5.-- Areas irrigated from Colorado River inImperial Valley in Mexico, 1905-1927.

Acres

1905 ~ • • • ~ • " • '" " ~ ¥ • 3,5911908 • • • 0 • ~ '" G • • e • '" 1,2881907 • '" • • 6 " • • '" ~ • • 4 4.0961908 ~ • • • • • '" '" • '" • • • 6,9351909 • • • • • e • • • • • • • 9.0511910 ~ ~ • '" •• " " ~ • ~ • • '" 14,9201911 • '"

., • • • • a· ~ • • e • 14,9531912 • • • " • • • e • • • • • 21.5991913 ~ • ~ • • ~ .. • •• ~ • ~ •• Z'53t7611914 •• e • •• • • • • 9 ~ ~ ~ •• 39.6001915 .. •• e •• & •• •• •• •• ~ 0 $ •• 41.0001916 .. ~ • " " • ~ '" • • " •• •• 67,6001917 ~ " e ~ • • •• D ~ •• ~ ~ • 77,6001918 •• ~ •• •• • " •• .. ~ " " " e 118$5301919 •• " " ~ • " " • e .. •• ~ •• 136,5801920 q .. " •• " ", 0 •• ~ • e .. .. 190,0001921 •• •• G • 0 ~ .. " • •• B •• •• 120,0001922 .. • .. • " •• " • ( .. • • " 150,0001923 ~ " 6 •• • • e • • • • e. .• 180,0001924 •• Q ~ • • ~ .• e- • ,

" •• ~ 185.0221925 6 • ¢ .. " • • ~ " " ~ <~ ~ 21oe9121926 " •• " • ~ (J II " ~ 0 • 0 • 192,5551927 •• •• •• •• •• •• •• •. •• ~ " •• $ 156,168 -13-

1scellaneoqs Boord" Of 82 of Wit r (rom Colol' 9 Riyer in MeIieo .-- TheAll-Amerioan Canal Board repOrt dated July 22, 1919, states that probablylen than 10,000 aores were irr1gated below the border in 1910, wl!ile22,000acres is the tigure g1ven tor that year in a ftstatement of :Al7sioal andRelated Facts Relating to the COlorado River" which accompanies a report

ot a United ~tates Reolamation Servioe Gonsultlng Board dated June 7, 1911.By 1913, aocording to E. O. 1& Rue in Water SUPPl¥ Paper No. 395, the Me:doan

irrigated area had inoreased to 50,000 aores, and by 1915, aocording to theL. K. Lawson Report ot July. 1916, included in "Colorado River Balin," ithad inoreased to 75,000 aores. In 1918, as stated in the repOrt at the A11-Amerioan Oanal Board dated July 22, 1919, the area was "more than 100,000aorea."

It will be noted that all of the figures relating to areas irrigated inMexioo just given are below those furnished by Dnperial Irritation Distriotwith the exception of tho larger of the two figuros given above for 1910(1.e., 22,000 acres) and the 19l?, figure of 00,000 acres mentioned in Water

Supply Paper No. 395. Since these data are fr ntary and sinoe past useis of on~ minor historical ~portanoe, it is believed that the differenoe.

may be assumed to be immaterial and the figures furnished by DDperial Irrlga-tion District as set forth in Table Ro. 5 aooepted.

Quant! ty of Wat or Used :fromColorado River in Lower Califomia.As previously stated, most Of the water from Colorado River that is

used for irrigatinB' lands in Mexico is diverted from the river by DnperialIrr~atlon Distriot and delivered from lmperial Canhl system during its ooursethrough Mexico under concession from the 12exlGan Government. Records ofdeliveries to lands in Mexico are available for the years since 1905. Alldeliveries are made at the main 08.l'16.1system by repl'6ti€llltat ives ot theCompania de Terrenos y Aguas de 1a Baja California, S. A., Mexioan subsldiar,

-14-

ot Imperial Irrigation Distriot. Measurements of deliveries are oonsideredby the officials of Dnperial Irrigation Distriot to be quite acourate and

are seldom questioned by users in Mex100. although sometimes ohecked. Thelarger gravity d~l1veries are gaged. by ou~rent meter one to three time.

dalli. while gravity diversions up to 3 or 4 oubio teet per seoond aremeasured by undershot gates and are oonsidered slightly low. Pa.mplng plant

tllveraions are mainly gaged with weirs and automatio water registers. water1s oharged for on the basis of deliveries from the main oanal system. without

allowance for waste or seepage. Table No. 6 presents U:e monthly and annualdeliveries 1906 to 1927.

-15-

-16-

Table No. 6S'I'ATE".'f OJ!'WATEBCHARGEDFOB IN U1PEl\lAL VALLEY. MEXICO

DURING THE YEARS1~W5 to 1927 INCLUS-"""'"INlET ACF.E FEET

.bJu: Jamaa.I7 Febrgar:! larch AWil JIai. .!llm!t i:ulY August September Octciler Noyember Degemper Total

1905 473 277 353 1,524 1,156 1,314- 1,695 1,380 1,014 1,009 4.35 246 10,7751906 28 108 2S 255 670 1.025 656 498 396 3,864190'7 414 530 806 1,2()3 1,285 1,195 1,887 1,795 1,014 858 649 646 12,28719()3 923 632 2,028 2,505 3,002 2,016 1,912 1,903 1,938 1,649 1,326 972 20,8061909 1,350 1,890 3,003 3,0§5 2,602 2,943 2,896 2,003 1,676 2,347 1,248 2,050 27,1531910 1,672 2,580 6,063 5,545 3,635 5,566 4,425 ·3,652 3,767 2,096 1,176 4,544- 44,7611911 5,343 2,342 4,062 5,926 4,897 2,094 4,363 3,655 3,124 2,540 2,073 3,360 43,7791912 4,268 5,120 6,357 8,131 5,418 5,010 6,544 6,264 4,628 4,190 4,185 4,661 64,7961913 5,139 5,342 10,957 12,970 13,380 9,453 12,063 9,726 8,986 5,457 3,976 3,835 101,2841914 3,326 4,445 7,218 16,469 .17,967 18.982 26,080 19,923 22,804: 8,152 2,138 2,174 149,6781915 1,422 644 5,509 10,414 12,096 17,187 28,085 18,482 15,283 8,896- 1,819 1,6-55 121,4921916- 937 3,077 5,714 27,499 30,287 28,348 32,069 36,872 31,496- 13,2(» 2,859 . 2,010 214,3721917 3,887 4,579 12,102 25,864- 39,807 41,880 52,668 49,662 46,334 22,776 3,960 3,290 306,8091918 4,169 5,494 10,777 39,174 66,020 60,512 61,872 83,012 69,833 33,888 6,750 5,517 467,0181919 5~237 5,158 14,800 64,505 60,530 69,918 90,977 93,814 67,284 16,748 3,581 2,428 494,9801920 2,541 2,802 13,999 66.3~ 77,734- 81,512 125,980 1~8,141 57,053 17,579 4,133 .4,652 572,4301921 3,407 6,750 9,686 24,7" 62,310 59,860 80,683 0·0,784r 55,816 5,597 6,068 4,512 385,1861922 1,735 6,665 21,716 62,745 64,247 69,112 98,260 105,900 79,062 20,989 6,094 3,44.0 539,9711923 5,222 6,903 20,157 95,413 71,300 86,330 121,361 116,139 63,997 13,565 3,361 2,528 606,2761924 2,440 5,010 18,729 79, O4t0 70,893 92,325 127,090 117,091 69,201 19,102 7,970 4,776 613,667

1925 5~581 9,011 60,OO4r 1()4,,00l 70,002 101,681 144,260 139,447 67,895 8,250 10,154 8,210 728 ,529

1926 7. oss 14,162 71,314 76,526 55,827 101,7~ 129,403 121,061 64,&24 20,025 13,263 4,432 &79,387

1927 6,838 11,475 25,988 74,213 80,859 77,244 1Q1,691 98,259 56,4&Q 18,79Q j.182 9,629 1273,58§

Total 73,398 104-,996 331,479 Sen,748 815,284- 936.206 1.279,419 1,214,661 794,274- 246,563 96,898 79,962 6,782,888

Per oentof Annual 1.19 2.00 4.53 12.94 14.10 13.47 18.25 17.13 9.84 3••27 1.&0 1.68 100~OO

As will be noted ~rom Table Noo 6, the months Of heaviest use inhi0;g:ico are April to S€l.ptember~ inolusive~ with the peak use in July and.

eAugust • (flhe record shows use darIng some recent )fears in exces s 0 f 100 ~000

aore-feet per month during June, July. and August, more than 120.000 acre-

feet per month in July and August during most rec ent years t and peaks or

1<14,260 and 129,40a acre •..feet respeo t ively, in July and A%,"Us t ~ 1925.

'While the total annual d.eliveries of water from Oolorado River in

Mexico are of most importance in conneotion with the international problem.

daily divers ions have some significance. espeoially since there has been

&OIDe disoussion in the past re.gar.dint~ interpretation of the provision in

the conoession under whioh "frOln the water mentioned in the foregoing article(a.rticle first, al.:tthorlzing the o:dginal concessionaire to oarry water

through Mexioo) eno~sh shall be used to irrigate the lands susceptible of

irrigation in LOwerOalifornia ~•• G ~ ••• e without in an.~ case the amount ofhulf

water used exoeeding one/of the voIume of wa.ter Ptissi:ng through said caual.11

Accord.ingly ~ the daily rates Of delivery, in cubic feet per aecond , have

been obtained for the /e&r 1927, together with the total diversion into

Imperial Ganhl system a t Hanlon HeadirJ€p and the daily deliveries to lands

in the United States.. Becau.se of the detail in'{Tolved. the table presenting

this informat ion is pluced in the appendix (Appendix X). 91he records for

a single yea.r are considered to he Suffioientl.l illustrative of the situation

to meet the pltrposes Of this :report. The infoI'mat ion pl'esented haa been

furnished by Imperial Irrigatlo~ Distriot.

Reviewing briefly the record of daily diversions and use duriU€; 1927,

the fOllowing' facts might be noted:

(I) Water was diverted and delivered to lHnd.s in both. the United states

and J4e%ioo on ever1 dq in each month 0 t the year, although on a t_ daysin Januarl, February, and Deoember the quantities delivered were eitherrelati va If small or negllga.b1e.

(2) Dlversions at Banlon Heading ranged between 1582 and 3251 oubiofeet per seoond 'in January, between 2910 and 4609 oubio teet per seoond inMaroh, between 4866 and 6100 .oubio teet per second in 1I$y, between 6141 and

6612 cubic feet per seoond in Jul¥, between 4050 and 6650 oubic teet per

seoond in September, and between 2200 and 3912 oubio feet per second inNovember.

(3) !he maximum diYera1on' at Hanlon Heading was 6612 oubio feet perseoond, on July 16; the max1mt:un total daily delivery to lands in the Unitedstates was 2984 oubio teet per second , on June 10; and tho maximum totald&111 delivery to lands in Mexioo was 1858 oubio feet per seoond. on Jul~ 16.

(4) On only two days during the year, viz. July 24 and August 14, didthe total daily deliveries to lands in Mexioo exceed the total dailydeliveries in the United States, and then by only small quantities. Incidentlyit might be stated that the question of the interpretation ot Artiole Seoondot the Ooncession would ariae only in years when prorating is neoessary, andthla was not neoessary in 1927. In faot, the only recent period of proratingoQourred during the tall of 1924, when prorating was tollowed both as betweenthe United States and Mexico, and a~ong users in the United states and Mexioo.In prorating between the United States and Mexico the same quantities weredelivered to lande in MexiOo &8 were delivered to division points in theUnited States. Prorating in Mexioo was in aocordanoe with aoreage tor whiohwater was ordered.

Pump Diversions from Il!lperlalOanal System in Mexioo.Certain lands reoeiving water from Imperial Oanal sJstem in Mexico are

too high tor gray ity flow from the system and are therefore supplied by pump••

-18-

of the ei.£')~tplants now in use arc along the .Alwoo Canal not't~l of the

Railwa-.v. One pumps from Solf'atara Gana.1to the holdlp.g of' Globe Mills Oompany.

The other two plan ts. Nos. 11 and. 12. are 10'0&ted on the wes·t bank 0 f Cerro

Prieto cana.l due sou.th of Me:daa.1i and were Inst~l.11ed to tU.rn1$h \t;ater to

with their owners and capacities, tollow;Oa.paOities",Cu,_ i?t" . .p,ex: se~.

Alamo A.A. " " • •• " e •• Algodones ?~~t.<1t,ion. '0.0.. .• .• •• ••Alamo A. .• •. • •• ~ •• " " A,1nlorooo HanonOil. " .• .• " " • .• .•Al"fflo No! •••••••••• " •• Colorado Eiver Land 00. 6 •• 0 ••••

.Almo C•••••.••••• ~ •• Globe mIlls 00 ••• $ ••• ~ e _ ••

Alamo O. A. ~ •• 0 ~ 4 •• De t:rancy 00••.••.••• II •• G ••

Alwno D•• ~ •••••• " •• Paradoll.ea !...and Co••••••••••• " "Alamo E••• " '" " •••• DaugheMYEstate (3 units:) • IJ •••

Sol:t'at£l.raH •••••.••••• G1Qbe Mills 00. " 8 " It •••••• 9

2070

••60080408

10070

Total oapaoity ••. 9S8

one aroll, the Panl Eo V,illiarn.s- tract near cuervos station on the Inter •.

on th1e tract;. in 1926 is 1~50 sorClh 'Three ethel' wells ha'V€I beeu put down

by tho Delta Cun~l Companyeast of Mile 3 on the Saiz Levee.. The reported

being used as part ot th~ irrigation supply for the 1~1ds of Delta Canal

pumped from these wells has been obtainable. Jl'he water pumped is of course

Jlart of thas,(tb ••• $u.:!'tooe :,ntIJply of Oolc)."&v1o Rivel'"-19-

Installation ot Siphons at Pesoadero OUt.

Referenoe waa made ear~ in this report to aiphonB being installed at.Pesoadero Out by the Delta Oanal Oomp&n¥ under permit trom Colorado RiverLand Oomp~.

The petition of Colorado River Land Company to make a diversion atPesoadero Out was first published in the "Dlario Ottioial" of Mexioo onMaroh 20, 1926. The oonoes.ion was requested "in aooordanoe with the presentlaw of waters, und with article 7 of its Regulations." A provisional permit,dated. September 30, 1926, was published in the "Perlodico Official" of the

100a1 Mexioan Government under date of Deoember 10, 1926 Under date ofOctober 30, 1927, tho same official paper published the revised perrott.This authorized the diversion of a max~um of 31,300 litres per seoond(1105 cubio feet per aecond) up to a total annual amount of 100 millioncubtc meters (approximately 81,000 aore-feet) by a system 0 f siphons at apoint 0 lose to Pesoadero OUt. The lands to be irrigated, acoording to thi8revised provisional permit, have an approximate area of 40,000 hectares(98,840 acres) with the following boundariess "To the north, propertiesot the Compania de Terrenos y Aguaa de la Baja Oal1tomia, to the east theColorado River, to the south land of the petitioning oompany, and to thewest the ranges Sierra del Mayor. Oocopah Mts. and the Oerro Prieto Oanalwhioh crosses the boundarios ot property desoribed at various points_"

This provisional permit 1s dated September 28, 1927.It will be noted that the area desoribed in the above permit generally

ooinoides with the holdi~B of the Colorado River Land oompany.

To date tive siphons have been installed~ with a oombined capac! ty ot

approximately 500 oubio teot per seaond( see aocompanying photographs, takenAPril 1928.) It is understood that plans oontemplate the installation ot

-20.

1. Siphons installed at Pesoadero Out in 1928 by Delta Canal 00.

2. New Delta Canal leading from alphons.

3. Intakes ot siphons in iesoadero Cut.201

16 additional units. The tirst three units went into servioe on April 10, 1928.The installation ot these siphons would seem to oonstitute a s~-

nitioant step in the utili2ation of water trom Colorado River in LowerCalitornia. The water diverted by them ot oourse does not oome trom anypart ot the Imperial Oanal system and is no part ot the quantity to whiah14ex1oan lands are anti tled under the oonoe8s10n governing the operationot Imperial Oanal in Mexioo. Obvlousl¥, however. the right to divertthrough the siphons 18 interior as to priority to the right of ImperlalOanal system. It 1s also olear that during the low-water periods whenImperial Canal diverts all of the water trom the riVer at Hanlon Heading.no water will be available at the siphons. At suoh times and whenever, torany other reason, the siphons are not in service, the lands under the siphonsupply system oan olaim and reoeive water from Imperial Canal. Sinoe thesiphons are independent from the Imperial Oanal system, Imperial IrrigationDistriot will reoeive no Inoome trom the water diverted by them. In time,it the siphon system 1s extended, the reduotion in inoome to ~perial Irri-gation Distriot will be a substantial one.

Use ot Water 1n Lower California.The prinoipb1 use ot water trom Oolorado River in Lower Oalifornia is

tor ootton, 72 per oent ot the &Iexloan area supplied from the ImperialOanal system in 1921 having been in that orop. Altalfa came next, with 23per oent tollowed by 4 per cent in grains and 1 per oent in misoellaneouaother orops. The total area rapo rted irrigated 1'romImperial Canal systemin Kezioo in 1927 was 156,168 aorea. In 1926 the total was 192,655 acrea,in 1925, 216,912 acres, in 1924, 185,022 acres, and in 1923, 119.954 aorel.lrbe acreage tor 1928 will not be reported until Ju1.v. The Colorado RiverLand Oompany reports in excess ot 100,000 acres in ootton. The totals above

21.

The area irrigated in an.v one year ,inLower Oalitornia is Bubjeot to

Biven do not lnolude the well acreage of the ~1ll E. Williams tract t reportedto be 1350 sores in 1928.

ver,v oonsiderable fluctuation in respOnse, primari11. to the price of oat tonand general eaonomio oonditions. The largest area reported. in orop in an,yone year was the 216,912 aoras in 1925. The area in orop in 1928 is expeotedto be the maxLmum to date. The principal increases in development at presentare in the area between the V~lQano and Sais levees and Rodrigues Levee.Future development to the south obviouBl~ will depend on the oourse takenby Oolorado River and the effeotiveness of present and tuture protectiveworks. The Oolorado River Land Oompany, owner of the entire area southof Rodriguez Levee, has not yet announoed its plans in oonnection with thisdevelopment.

Table No. 8.--Areas in Oro» in Lower Oalifomia in 1927as reported to Oompania de Terrenos Y Aauas de 1&Baja California, S.A., (SUbsidiarl of ImperialIrrIgation Distriot).

Qanal Ootton Alfalfa Grain Other TotalAores &ores aores aores aoresAlamo 80,348 12,827 2,531 213 95,919Soltatara 2,326 4,570 --- 200 7,09525 •East High Line 5 30lIesa 31 10 1M 175East Side lIain 194 233 109 '- 636South Alamo --- ---Ash 40 199 40 279Alamitos 160 260 114 534Oentra1 Main 24 543 84 45 696West Side llain 7,960 3,607 975 377 12,919Wistaria 70 524 98 83 775Enoina 1,210 66 430 5 1,711Wormwood 2,970 60 18 3,048Woodbine 46 15 10 70Cerro Prieto 16.638 13.193 1.94Q 610 32.381

'rotal 112,015 36,132 6,448 1,073 156,168PerCent 72 23 4 1 100

-22-

1

Land in Lower Oa l1fornia 1s very largely farmed boY tenants. largel,yMexioan, Chinese. and Japanese. The oharaoter and terms of leases 11

not known, exoept for Co.lOrado River Land Compa.r1¥.whioh in 1926 had

approximately l2p separate leases, although in a number ot oaseB two ormore leases were operated boY the same individual or oompan.r. In addit10nto a pasture lease of 193~OOOaores in the unprotected and undevelopedarea south ot the present oourse of the Colorado through the Pesoadero,this oompat1¥ reports approximate 11 185.000 acres in lease in 1928. ~e

following information supplied by 1Ir. H. H. Clark. General Manager ot th1a

oom.P&111'.gives an indioation ot how its leases are handled.tile aompaD¥ leases on a royaltl varying from 16 to 20

per oent of the gross inoome, the lessees P8¥1ng for theirrigation water and a prorata at the cost ot operating theirrigation system. It the lessee tarnishes his Lmplementsand prepares the land for oultivation and. irrigation, theoomp8ll1 advances the money neoessary to oarry operations upto the tima ot harvest. In some oases the aompany plows theland with traotors andlcha~es the lessees ~4 per acre. Inexohaug8 tor the ootton seed the oompany d08S the ginning andfurnishes bagging and ties. All sales are handled by theoompany. j'inancing of' lessoes bl the oompan,y goe"s as high aatao per acre.

Dut, at Water in M.exiooThere are no satisfaotory figures on the duty ot water in irrigation

in Mexioo. While the quantities of water used are known with reasonableaoouraoy, the areas rooelvi water are onlv very approximate. Using suohdata as are available, howe.,er, the following figures have been oomp1ledby Imperial Irrigat ion Distriot a •

-23-

Table Bo. 9.--Gros8 Duty ot Water in Mexico, 1911~1927.Baled on Headgate Deliveries trom bnperial Canal Systemin Mexioo.

Average ~antity Deliveredto,Farms" Acre-feet per act!,

1911 • • • • • • • • • • • • • 2.931912 • • • • • • • # • • • • , 2.981913 • • • • • • • • · • • • • 3.011914 • • • • • • • • • • • • • 3.781915 • • • • • • • • • • • • • 2.9619.116• • • • • • • • • • • • 3.181917 • • • • • • • • • • • • • 3.961918 • • • • • • • • • • • • 3.941919 • • • • • • • • • • • • • 3.631920 • • • • • • • • • • • • • 3.011921 • • • • • • • • • • • • • 3.211922 • • • • • • • • • • • • • 3.601923 • • • • • · • • • • • • • 3.371924 • • • • • • • • • • • • 3,321925 • • • • • • • • • • • • • 3.381926 • • • • • • • • • • • • • 3.63192' • • • • • • • • • • • • • 3.67

Sinoe the above ligures are based on headgate deliveries they do notalwa,yl represent the water used on the land beoause ma.tJ¥of the oanals areot oonsiderable length and subJeat to transmission 1088es. SInce all waterdelivered from the Imperial Oanal system is paid for. waste Is probablyheld to a min~. In tact. inquiry oonfirmed this assumption.

Some observational attention was given in the tield to the eoonomw ot

use on the Mexioan laDl.. !lte oropped areas are large and the oare ingreparat ion and in applying water to be expeoted in smaller tracts moreintensive~ oultivated is not to be expeoted and 1s not tound. Consideringthe p1adation ty~e of agrio~lture practioed. howeyer. muoh ot the land 1s wellprepared. although in relatlvelV large oheoks. It is believed that thegeneral statement that water 1s used with reasonable eoonomw below theInternational boundary, in view ot the type ot agrioulture practioed, i.

warranted.

(1) In the main, water trom Colorado River used en lands in Mexiooi8 taken trom tho irrigatlon system ot lmperlal lrrtgatlon Distriot, theconoession under whioh water is oarried through Mexioo to Dnperlal Vall~,California. stipulating that not exoeeding one-halt of the water carriedshall be available tor lands in Moxloo. The larger part ot the water usedin Mexloo trom the Imperial Oanal system is gravit . delivery. but deliv81'1

18 made to elght tr&cta by pumping plants with anagcregate oapaou¥ ofabout 988 cubic toet pOl' seoond,"

(2) Beside the use of water trom the Imperial Canal system. thereare two independent well installa.tions :tu.rnilhing all or part ot the

IUJilply used on oonsiderable aore88es, and the first five units ot a system

ot siphons have been installed by Delta Oanal OomP&n1 at Pesoadero CUt to

deliver watar to their lessees south at Volcano and Saiz levees. Thesesiphons have been installed under concession from the Mexioan Government

dated September 28, 1928.

(3) The principal land ownerships in the Colorado Rive~ Delta inround numbers are I

Aorel

Colorado River Land Co.,inoluding about 132,000 aoresmountain and desert • •• ••

Southern Paoifio Co. • • • • • • •Mexioan Government • • • • • • • •Globe M111s Oomp&nV • • • • • • •~erial Development Co. •• ••Shintanl Ranoh • • • • • • • • • •Daugherty Estate • • • • • • • • •Lands sold to numerous owners b¥SOuthern Pn4itio Co. (exclusiveat Mexican Gov't. and Globe Uill8

800,00028.50035,50012,00016,0008.000

10,000

Co.) ••••••••••••••Andrade Estate (including mesas) •Kt. S~l Landand Cattle 00 •••

29.00050.00010.009999jOOO

-25-

(4) The area south of the Internat10W BOunde.r,yand north ot the

Bee, Pesoadero, and Rodriguez levees approximates 500,000 aores, ot whiohapproximatel)" 400,000, or 80 per oent, is susoeptible of development underirrigation.

(5) The gross unproteoted and undeveloped area south of the Bee andPesoadero ohannels and Rodriguez levee. extendine as far south &8 tbelouthern boundar,y of the holdings of the Oolorado River Land Oompan7.approximates 315,000, of which about 220,000, or 70 per oent, is estimatedas irrlgable with the Oolorado River oontrolled, or 150,000 to 176,000acres 1t the rivor oont1nues to flow about as at present.

(6) The area irrigated in 8D¥ one ,ear reacbed 1ts peak in 1926,

w})en216,912 acres was reported a8 having received water trom ImperialCanal 8¥stem in M "ico. The developed area north of Bee and Pescadero

channels and Rodrit~ez Levee approximates 280,000 QQres.(7) Reoords are presented showing the quantity ot water delivered

monthly to users in 1Iexioo trom 1905 to 1927. The largest annua.l del iveryto date was 726,529 BOre-teet, in 1926. The months ot heaviest use areApril to September, Inolusive. In Bome reOent years monthl,y deliverielhave exoeeded 100,000 sore-teet duri-ng June, Jul¥, aDd August. with peaks

of 144,260 and 129,403 acre-teet, respeotively, in July and August, 1926.(8) A reoord 1s inOluded ot dail,y diversions by Imperial Oanal at

Hanlon Heading and dail¥ deliveries to lands in the United States and in

Mexioo for 1927. The max~um diversion at Hanlon Heading was 6612 4abio/

teet per seoond, on July 16; the maxtmamtotal daily delivery to laada in

the United States was 2984 oublc teet per seeond , on June 10; and the maximumtotal dally delivery to lands in Mexioo was 1858 eub Io teet per second, on JUl,y 16.

-26-

(9) A table is presented giving the areas irrigated, by 01'OP8. in

1927, 8S reported to the Mexioan subsidiary of Dnperial Irrigation Distriot.

This shows 112,016 aores, or 72 per oent, in ottton; 36.132 acres, or 23

per oent, in alfalfa; 6,448 aores, or 4 per oent, in grainsl and 1,673

aares, or 1 per cent, in other orops. The total area irrigated was larger\ in every other year sinoe 1923, reaching 216,912 acres in 1926. Figures

for 1928 will not be oollected before July, but the irrigated area will

irrigated 8Xoluslve~ from wel1a.

.be oonsiderably above that for 1927. The figures quoted do not include land.

(10) A table is presented giv ing the gross headgate duty of water

delivered to lands in Mexioo by the Mexioan subsidiary of Imperial Irrigation

to 3.96 aore-teet per acre. These tigures t although generally aooepted, are

Distriot trom 1911 to 1927. inalusive. The range as reported is from 2.93

based on approximate data only. Limited observations in the field indioate

that, oonsid'ering the extensive charaoter ot the agrioulture praoticed, water

1s used in Mexioo with reasonable eoonomy.

(11) The general regulations and oonditions under whioh water is

delivered and distributed in Mexico are desoribed in detail in the writer's

report of June,1926. to April, 1927, pp. 86-89, 96-110!. and 122-123, to the

Uni ted states Bureau ot Reclamat ion and are not repeated herein.

(12) A map aocompanies this report showing, with general.accuracy,

the irrigated, irri able but not developed. and the generally non-lrrigable

areas in the delta ot Colorado River in Lower California, together with

prinoipal oanals and proteotive levees, as well as the looation of pumping

plants, irrigation wells, and siphons. Irrigated land is taken to be that

which has been developed and irrigated and not abandoned, although not

necessarily irrigated oontinuousl~.

-27-

Appendix 10 - DAILY DlVEIlSlONS EnOl OLCIW)O RIVER AT HANLON lEADING BY IMPERIAL IBRlGATION DISTRICTANIDAILY DELIVEBIES TO LANDS

Diver. Diver. Diver. Dl Y'9ro Diver.from Dalv. to Land from Dalv. to Land from Delv. to Land from Delv. to Land from Del v. to LandQqlo, R, !l.L..i.. ~ Cgloe i. U,S •. Q.Q1g.R. U,Se .JdU. CQ:1Q.li• ....u.a" Kua. Cglo·E. .IL&a. I.UL1~14 244 25 ~1' 1172 54 3313 1686 271 4336 1913 768 5550 1865 14851705 245 a6 M18 1288 56 3i66 1783 287 4400 1726 873 5732 2123 1'1011678 335 33 2599 11'12 71 3695 ,

286 3800 1331 787 5£115 2410 1682,/ 16791993 609 75 2654 1294 70 3239 1i17 301 3750 1541 87& 6100 2534 13342319 802 54 2629 1206 82 3498 1341 283 4574 2138 1006 5933 2407 12932126 789 70 2700 921 82 3244 1086 227 5025 2362 911 6750 2386 144,22314 920 78 2703 1066 102 33&4 1342 300 5000 2332 9~ 6300 2038 14982346 926 75 3100 1233 113 3484 1700 339 5205 2446 1080 4860 1547 14891900 825 92 3400 1420 265 34U 1825 337 5reO 2190 1095 5200 1796 14352213 1034 99 3259 1291 285 3372 1629 320 4710 1599 U85 5455 2274 13712710 I 1263 87 ~300 1243 289 1540 315 4'169 1721 1225 5362 2294 136630002738 1396 99 3063 ll52 268 3100 1603 313 5232 2007 12&~ 5821 2506 13672829 1644. 103 3069 782 264 2'84 1280 321 4975 2178 1196 5714 2465 13873119 1649 1Q2 2388 790 216 2910 1478 307 S062 2129 1241 5297 2221 13833163 1002 102 2507 516 273 3412 1833 359 4841 2284 11M 5360 1950 13352882 1323 76 2484 490 217 3853 aOlo 369 5100 20ot. 1426 5291 2291 12101582 653 131 2262 459 279 3901 199'1 391 4687 1491 1414 5491 2535 12201905 810 136 2000 &27 257 3943 2229 412 5075 1853 1500 5600 260G 12271920 936 164 2445 719 263 4020 1995 436 5200 2117 1141 5500 2355 12631937 669 178 2542 679 181 3900 1506 398 SOli 2292 1189 ~15560 2560 10902290 862 172 2359 889 215 3757 1824- 414 5100 2205 1220 5500 2351 11262212 614 167 2700 1169 245 3868 2176 437 6249 2282 1283 5400 1893 12322000 436 169 2990 1100 294 4097 2163 466 5136 2009 1329 6250 2012 12832600 566 162 3530 14()l. 327 4215 2232 500 4-990 l$()l. 1430 5950 2716 1341"3000 1121 lOS 30N 1249 246 4300 2273 558 5039 1813 1557 5890 2602 13593200 1234 179 2600 1376 241 4314 2203 594 6845 2385 1789 5850 2552 13412900 1193 200 3066 1005 230 4396 1718 653 540Q 2351 1401 5750 2547 12323200 1201 171 3383 1463 252 4286 2064 644 5841 2295 1662 5950~~

12513251 1145 168 4667 2273 713 5660 2435 1&63 5800 1234.2685 895 36 4576 3285 753 5833 2346 1636 4988 2295 7162864 1102 55 4.&09 1940 731 5500 2443 941

-28"-

I,

JtniE July AUGUUT SEPi'EDER OCTOBE:B NOVEMBER DECEMBER

Diver. Diver. Dlver. Diver. Diver. Diver. Diver.trom Delv. to Land. from Delv. to Land. from Dalv.to Lam from Delv.to Land from Delv. to Lam from Delv.to ~~ from Dalv. toLandColo. • U s AkL. Colo.E. !l...h Xu.&. fi(Ql0.R.U.S. Alu.. Cola,i, U.S. Mu.. CQ1Q·L y.S, au.. 0010. R•.U. S. Colo.R. z.a, llU..

5600 2567 1259 5975 2567 1486 5601 1941 1583 4900· 2163 1322 4451 2228 417 2200& 993 153 3750 1744 1661200 2485 1351 5953 2M9 1515 5500 2228 1661 5165 2233 1408 4 000 1857 337 2829 781 151 3532 1629 1756200 2576 1143 54C6 1950 1337 5787 2295 1622 514.9 2037 1380 4138 2109 323 2951 1102 165 3315 1476 2065750 2410 1283 5510 2154 1342 5835 2314 1485 4895 1670 1347 42M 23'1~ 347 2972 1235 166 3()rl,6 1000 2205600 2091 1280 5689 240l 1572 5900 2153 1673 502S 2013 1290 4564 2230 404 2751 1134 165 3145 1276 2265600 2471 1330 5600 2771 1701 5800 1978 1634 5009 2097 1399 4287 2362 374 2551 717 138 3518 1522· 2336688 2936 1337 6032 2650 1784 5375 1595 1412 5177 2233 1447 4413 2566 397 2626 885 187 31,53 1587 2326000 2912 1413 6074 2779 1753 5100 1936 1389 5273 2031 .1420 4415 2458 376 3000- 1313 200 3310 1560 2596000 2984 1445 5539 2060 1673 5600 2196 1466 6490 215§ 1428 4072 1922 362 3200* 1424. 212 3393 1510 2476000 2944 1416 5993 2375 1772 5225 2176 1455 5650 2119 1395 4273 2401 387 2965 1347 196 3238 1245 2176850 2049 1334 5900 2385 1807 5423 2124 1549 5154 1717 1152 4785 2567 357 3002 1335 161 1975 473 1485648 2199 1306 6001 2696 1833 5634 2312 1625 4900 2028 1133 4885 2633 347 2818 1189 193 2300· 557 1885878 2650 1Mi 6359 2697 1744 5703 2128 1607 5155 2332 1115 4800· 2489 339 2849 979 177 2872 827 ' lS35902 2968 1248 64.00 2312 1784 5350 1568 1599 5073 2131 111>0 4644 2551 236 2814 1326 187 2787 807 ll~5847 2963 1212 6612 2611 1856 5187, 1864 1650 5150· 2169 1120 4425 2250 217 3061 1618 95 2841 986 2025814 2719 1153 6269 ,24.61 1856 5509 2189 1679 5000· 2251 970 3930 1861$ 210 3065 1556 79 2659 1090 ias5563 2845 1010 5786 1813 1719 5f;51 2357 16$13 5000· 1947 910 3875 2069 189 3073 1759 96 2515 1054, 1685874- 2918 1221 5945 2272 17fJ7 5536 2228 1752 4875 1785 844- 40'78- 2292 226 3141 1790 102 2300 748 1545273 2114 1223 5827 2362 1778 5578 2327 1600 4650 1963 731 4063 2193 319 5'066 1721 85 2300 618 1765368 2474 1060 5804. 2233 1781 5500 2167 1811 4500 2191 625 4262 2297 296 280'1. 121)1 95 3(177 1115 1655700 2915 1215 5388 2136 1790 5242 1832 1758 4450 2076 545 4043 2369 273 3000 1541 115 3044 1266 1636800 2903 1357 5676 2120 1812 5500 2091 1800 4250 '1957 458 4062 2283 389 :Sl70 2597 202 2985 1375 1475660 2701 isei 5489 1953 1771 5664. 2271 1790 4057 1995 483 3978 1791 345 3165 1650 1M 2988 1205 1605980 2918 1351 5358 1709 1794- 5600 2136 1750 4250 2011 529 4109 2CSO 275 3212 1485 162 2653 884 1546067 2662 1369 5360 1897 1749 5500 1975 1698 4050 1729 466 4400· 2127 287 3075 1448 154 2423 478 1205788 2236 1212 6437 2076 1746 5350 1664 1634- 4294 2114- 475 3588 1806 252 2932 1522 163 1400· 69 595634 2760 1380 5649 1992 1716 5200 1849 1569 4503 2427 404 3550 1856 239 3359 1210 88 821 16 66181 2830 1452 5526 1861 1717 5050 1594 1470 4250 2238 454 3459 1583 231 3200 1507 143 854 3 76165 2943 1461 5815 2291 17()l 47t)O 1845 1326 4350 2301 499 3357 1362 229 3714 1817 207 1238 31 86000 2712 1443 5793 21M 1631 5062 2212 1234 4500 M30 495 3011 1214 232 3912 1142 234 1453 59 34

5141 1897 1541 5160 2286 134.3 3061 ,1399 238 1465 62 77

*Estimated-29-