Technical Report 5 (translated)

Works in execution:To North Interceptor – High PartThe North Interceptor crosses the districts of San Miguel, the Per it, Bellavista, and Callao.One begins in the La Paz avenue, running soon by Street 2 of May, Av. Freedom,PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO55Av. Insurgent, À Street, Av. Forcelledo, Psje. The Sun (Av. Circumvallation), cross a riverRímac and continues its course crossing parcels of Ex-Fundo San Agustín, to about 150m of the present wall of the Airport the International “Jorge Chávez”. The unloading pointend is in located lands of Sedapal in the “Taboada beach ".The system of collectors who will drain to the North Interceptor in their High Part is:Costanero; Navy; No. 10 – Argentina; and 19 no. – Duárez Morals.In the denominated zone High Part will settle: pipe of two (2) diameters: 1500 mmand 2100 mm. The material of the pipe concrete will be reinforced with a coatinginterior of HD polyethylene (HDPE). Two have been adopted (2)constructive procedures for the installation:a) Consisting of conventional procedure the excavation of ditches to open skywith backhoe and the consequent installation of the pipe in these ditches.b) Procedure denominated of “empujado of tubos”, (Pipe Jacking), that consists ofthe excavation of a tunnel and the extraction of the material excavated by the interior ofpipe, at the same time that is pushed the line of installed pipe,by means of cylinders (cats) hydraulic engineers of suitable size and power.Throughout the Interceptor (High Part) one has elements of inspection and interceptionthat in cases of collectors of smaller magnitude than the present work, they would be denominatedmailboxes, nevertheless given to the spread of the present project these elementsone will denominate CAMERAS to them. They are a total of 36 cameras, special 32 and 4interceptors.Picture 2.32Metrados and Installation of Pipe by Constructive MethodMaterial Section Diameter(mm)Length(m)MethodConstructiveCC to the Reinforced C-7 Concreto 1500 684 Open ZanjaC-7 to the Reinforced C-9A Concreto 2100 432 Pipe JackingC-9A to the Reinforced C-13 Concreto 2100 528 Open ZanjaC-13 to the Reinforced C-22 Concreto 2100 1572 Pipe JackingC-22 to the Reinforced C-27 Concreto 2100 349 Open ZanjaC-27 to the Reinforced C-31 Concreto 2100 714 Pipe JackingC-31 to the Reinforced C-34 Concreto 2100 486 Open ZanjaTOTAL 4765 -Picture 2.33Summary of installation of pipe by constructive methodConstructive Method Diameter(mm)LengthPartisan (m)LengthTotal (m)1500 684It settles Open2100 13632047Pipe Jacking (Tunnel) 2100 2718 2718TOTAL - 4765PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO56B. North Interceptor - Low PartNext the system of collectors is described who will drain to the “Interceptor Norte”in its Low Part:The outline initiates its route catching the contribution of collector no. 19 in the crossing with the Av.Duarez morals (joining to the existing pipe of 1350 mm in operation).It cross a river Rímac, intercepts to collector no. 6 in the C-37 camera, with hisinterception eliminates the total use of the crude water-drainages for usesagriculturists, in the areas bordering to the Airport the International Jorge Chávez, as well asenvironmental cleaning of the zone.The distribution has been had in consideration for the outline of the North Interceptor offacilities contemplated in the Masterful Plan of the Airport the International JorgeChávez to the 2030, provided by Lima Airport Partners (LAP), concessionaire of thisaerial terminal.The outline runs mainly by islands located between you denominate New Streetsof Taxiing (Way Taxi) and Fast Exits of Airships and the New Areas ofPlatform, from this point, will happen through free land of the airport.Throughout the Interceptor (Low Part) a total of 35 cameras, 33 special ones is had(7 are of special falls and 1 camera of overflow) and 2 interceptors.Picture 2.34Metrados of installation of pipe by constructive methodMaterial Section Diameter(mm)Length(m)MethodConstructiveC-34 to the Reinforced C-37 Concreto 2100 437 Open ZanjaC-37 to the Reinforced C-59 Concreto 2400 4.905 Open ZanjaC-59 to the Concrete Channel Reinforced 2400 855 Open ZanjaTOTAL 6.197 -Approximately in progressive the 10+107 it will intercept the Bocanegra collector, withintersection of the derivation of this collector, will eliminate the launching ofcrude water-drainages to the sea, as well as their use in agricultural uses.C. Pumping station Sarita ColonyThe pumping station is located the Centennial Av. Prolongation in the A.H. Acapulco,District and Province of the Callao. This location obeys to better conditions of the groundsince in most of this zone this one is not adapted forconstruction of structures.The pumping station Sarita Colony will take care of the area of drainage 5 (Centennial),as it has an of great volume daily average of 0,944 m3/s and a maximum 1,473 schedule of m3/s.In order to reunite and to lead this volume to the pumping station it will be constructed and it installeda camera of pick up of 3,80 ms x 5,45 ms and one pipe of concrete of ∅1200 mmand 63,60 ms of length, respectively.The land where the station will be located counts on approximately 1710 m2, whichit has the following components:PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO57• Camera of grates• Camera of pumping• House of operation• Houses for electrical substation and generator set• Perimetric wall, house and towers of security• Patio of maneuversCamera of gratesThe camera of grates, occupies an area of 3,80 ms x 12,80 ms, constituted by two channels of1.20 4,84 wide m and ms of depth. In each channel a grate will settlepivotante mechanics of stainless steel (AISI 304), of 1,20 ms x 3,00 ms with a light ofpassage of 0,025 m, with 75º of inclination and automatic drive.The solid remainders retained by the grates will be transferred by means of a screwsolid transporter, installed cross-sectionally to the wide thing of the 2 channels, towardsa hydraulic compactador of solids, which during their step are washed with watersoon to leave by nozzles and finally they will be unloaded towards a containerfor its final disposition in a sanitary filling.After crossing the grates, waters served by means of ducto rectangular as1.20 ms x 0,55 m enter the humid camera.Camera of pumpingConformed by two cameras: humid and dry, which will occupy an areaapproximated of 120,0 and 67,0 m2 respectively.The pumping camera, completely will be buried under the level of the floorfinished, it will be acceded to her by means of metallic stairs.For the determination of the useful volume a period of retention of 30 has been consideredminutes. The useful volume of the humid camera is 183,00 m3, with rectangular section.Next the dimensions of this camera appear:Dimensions of the humid camera: Length = 10,6 msWide = 9,70 msProf. Effective = 1,77 msOverall height = 7,10 msIn the pumping camera 5 units of pumping will settle Model high frequency 750/8 – W3GB401 marks ABS, with an impeller of 450mm of diameter, operative 4 and 1 inreserve; the pumps will be of the centrifugal type, special to pump solids (sand)of 100 HP of power.Dimensions of the dry camera: Length = 10,60 msWide = 5,12 msOverall height = 6,85 msA system of treatment of scents by activated charcoal has been considered in orderto eliminate the possible bad scents produced in the cameras.House of operationIt will lodge all the electronic equipment dedicated to the control of the pumps and the system ofautomatization. In the ceiling of this atmosphere a rail will be located that will be used forpositioning of the pumps by means of pulleys.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO58Houses for electrical substation and generator setPlanta de Subestación will welcome the reducing equipment of load and the box ofelectrical provision for the operation of the pumping station. It has ductodestined to the ventilation of the atmosphere.The generator set account with an area where a base adapted will be placed of0.30 m of stop where the generator set of endorsement will locate itself. This atmosphereit will have windows to allow the evacuation of generated gases.Perimetric wall, house and towers of securityThe West will be constructed to a perimetric wall in the side, of 3,25 ms of stop, with columnseach 3,95 ms, following the profile of the land. It will be of tarrajeada brick rubbleworkand painted.Also two towers of monitoring are projecting.2,4 brick rubblework ms will be constructed to a house of guardianía of 2,4 ms xwith finished tarrajeado and painted, door of contraplacada wood, and windows offrame of steel and glass.Patio of maneuversImmediate to the access door to the station, it is had an appropriate area stopsthe maneuvers, parking of vehicles and for the activities of operation andmaintenance.D. Line of Sarita Impulsion ColonyThe line of impulsion begins in the pumping station Sarita Colony, crosses the Av.Centennial prolongation of the South to North until arriving at the camera of Taboada grates, inthe Callao. The work consists of the installation of 2.711 ms of fused iron pipeductile (HFD), K7 class, 1000 mm of diameter, had inner with cementaluminous. Also, according to the Ground Study, the pipes, valves andductile iron accessories will have to protect with a sleeve of polyethylene and paintingsspecial.The maximum volume of pumping will be of 1540 l/s, reaching a approximate speedof 1,8 m/s and will have a minimum volume of 556 pumping of l/s with which it would reach onespeed approximated of 0,70 m/s.Throughout their route, 5 valves will settle in the lowest points to bleedthe residual water. In the high points 6 valves that will allow to evacuate the bags ofair to form in the conduction as a result of the operation of the system.Also, 3 valves will settle type floodgate to facilitate the sweepand maintenance of the line.And Camera of Taboada gratesIt is located in located lands of Sedapal in the Taboada beach to the North of the Ex- ones -I found San Agustín on the Constitutional Province of the Callao.It is possible to indicate that this camera is not the definitive treatment that agrees to watersserved which they will be spilled to the sea, it constitutes a preliminary treatment like part ofintegral solution of the system of water harvesting served as North Lima, whichit includes a plant of treatment and a submarine emissary.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO59The components of the camera of grates are: grates, perimetric wall, warehouse,offices, house of monitoring and services.The waters served originating as the North Interceptor and the derivation of the CollectorComas-Chillo'n, will arrive at a camera of trapezial form of 11,0 ms of length, wherethey will be distributed uniformly in four channels of 3,20 ms of wide in whichthey will install heavy stainless steel grates, where the retained solids will beremoved manually, in order to avoid that solid very heavy they spoil the gratesfine.The fine grates of automatic cleaning will be of robust construction of steelstainless, they have a separation between bars of 25 mm and one inclination of 75º.The retirement of solids catched in the mechanical grates will be by means of a rakefrontal, mounted in chains, to both sides of its structural frame.The bars of the screen of the grate will drag the remainders in ascending formtowards it shoots of unloading where the remainders are separated of the rake and envoysby gravity to the system of solid transport.By each two mechanical grates a transporting and compactador screw will settle ofsolids, with one shower to their exit for the cleaning of solids. These will beunloaded towards a container for its final disposition in a sanitary filling.F. Derivation Collector NavyThis work will allow to turn aside the water-drainages of the existing collector, from the crossing of the Psje.Rázuri with the Av. Navy until joining with the North Interceptor in the C-9 camera.From this crossing, it will cross the Av. Navy until arriving at the crossing with the Av. Insurgents (intercepting camera C-9), transporting a maximum volume of 2.561m3/s.For it 743 ms of pipe of concrete will settle reinforced of diameter 1100 mmwith internal coating of HDPE. In his route it will intercept the collectorCanamelares of 400 mm of diameter.G. Overflow of EmergencyTo CORPAC request, an emergency system has been considered that will enteroperation in case of some natural or attempted disaster, that could interruptnormal operation of the North Interceptor.This system of emergency consists of deriving the water-drainages (10,418 m3/s) througha special-purpose aerial camera (C-35 camera) located in the right margin of the Rímac river toheight of the Av. Circumvallation, doing a parallel route of 591 ms to the wall ofexisting containment; finally to unload waters served on the own river,before its pass by the airport.The emergency overflow will be a line to pressure of 2100 mm that will be drivenby means of a metallic floodgate of manual closing, located in the C-37 camera, fromwhere the water-drainage will increase its level until reaching level 26,62 m.s.n.m., level ofentrance to the Overflow of Emergency.The water-drainage will reach level 29,4 m.s.n.m. in the C-32 camera, anticipated maximum levelin order to lead the volume of design of the Interceptor in section of the airport.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO60The material to use in the line of the emergency overflow of concrete will be armed,with HD an inner polyethylene coating (HPDE) and it will be installedby means of the technique of ditch opened with rested.H. Derivation of the Bocanegra CollectorAt the moment the Bocanegra collector crosses the facilities of the Air group N° 8 ofproperty of the Air Force of Peru and lands of culture of private property.Before the unloading to the sea the agriculturists of the place dam the mailboxes and usewater-drainages to water to its sembríos causing negative impacts to the public health.They are for the mentioned reasons that one has projected to derive the Bocanegra collector,being his new route by the Av. Elmer Faucett with North direction, it will catchcollector San Juan Masías and will unload to the North Interceptor in the C-59 cameramaximum volume of 0,29 m3/s.300 mm existing will be intercepted to the Masías collector and the collector of DN that runsin parallel form to the Masías before initiating by pass of the North Peripheral Project.Also the relocation of some collectors on watch of DN 200 will be necessarymm.The work consists of the installation of approximately 1630 meters of PVC pipeISO series 20 of 630 mm diameter and the construction of 17 mailboxes Type II.I. Collector Juan Pablo IIAt the moment, the final unloading of the water-drainages of the AA.HH. Sarita Colony, JuanPablo II and others, unloads to the Centennial collector by means of 02 cameras of pumping.The objective of this work is to eliminate these cameras in order to reduce operation costsand maintenance, and to lead the water-drainages (0,082 m3/s) to the new outline of the collectorCentenary that finally unloading towards the future pumping station Sarita Colonyé to integrate them to the North Intercepting system.The collector Juan Pablo II begins in front of the present camera of pumping of Juan Pablo IIin the Av. The Emitter, continuous until the Av. Manuel Seoane, follows by the Acapulco Streetand finally unloading to the new Centennial collector in the Av. Jose Gálvez. For hisinstallation will require the derivation of secondary networks of DN water-drainage 200 mm.200 mm, 315 mm will settle pipes of PVC ISO of DN series 25, DN 400mm series20, by means of the technique of ditch opened with propped up and pumping to depress the levelphreatic present in all the zone of work.J. Derivation of the Collector Commas - ChillónAt the present time the collectors are of reinforced pipe of concrete: Commas of 1500mm and Chillón of 1400 mm of diameter. Both cross in parallel form by the Av.Izaguirre prolongation until unloading in the Taboada beach.The present work will change the mentioned route, deriving the collector CommasChillón from the existing camera located in the Av. Izaguirre Prolongation, whichit will cross agricultural lands and it will continue by the street N° 8 until doubling by the passageVirgin of the Carmen; soon, she will enter by the Centennial Av. until lands ofSEDAPAL in the Taboada beach.It will catch the water-drainages of the area of drainage 8, which includes/understands great part of the zoneNorth of Lima, being its collected maximum volume of 5,668 m3/s.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO61The work consists of the installation of pipes of concrete reinforced class II, 2400mmof diameter, covered inner with polyethylene of HD, onelength approximated of 935 ms and the construction of 8 mailboxes or cameras.K. Unloading to the beachThe integral solution of the system of water harvesting served as North Limait includes/understands two parts, the first corresponding one to Obra of the North Interceptorproperly and the second a the construction of Planta de Tratamiento and an EmitterSubmarine.“Interceptor Obra Norte” it includes following the two components of Planta ofTreatment: Camera of Grates and the Line from Unloading to the Sea, this last one is an exitof emergency before an eventuality of maintenance or operation in Planta ofTreatment.Being the Maxima m3/s unloads 17,85 corresponding to the hour maximum volume ofyear 2028 and the characteristics of the ground of the beach and marine regime, the structure ofsuitable unloading but is a channel.The unloading is located in the Taboada beach, the channel begins when coming out ofstructure of grates and consists of three sections: Initial, Interval (transition) and End.The initial section will begin in the opening of the channel overflow of the camera ofgrates. The inner section will be of 4,00 wide ms of by 2,40 ms of stop and the length of22.00 m.s will be constructed in concrete armed ceiling, bottom and walls of 0,30 m. ofthickness.The intermediate section is enrocado trapezial channel of 30,0 ms of length. Forwalls and the final end must have with nail anchorage and protection to avoidthe socavamiento by erosion.The final section will be a land channel of 80,0 ms from where the waters will unloadresidual of the North Intercepting System.L. Preparation of NetworksBecause some collectors on watch or secondary networks interfere withoutline of the North Interceptor, has prepared them for its normal operation.Therefore 200 mm will be executed the relocation of existing collectors of DN ofconcrete simple standardized (C.S.N.) and its domiciliary connections to continuegiving service to the houses.The existing collector of street Two of May will be eliminated with the installation ofNorth interceptor of DN 1500 mm and will be replaced by another one to 2,10 meters oflateral facade left direction of the flow of the Interceptor, its unloading will be to the collectorexisting of DN 200 mm of C.S.N., located in the Av. La Paz, considers to reinstalar 05domiciliary connections of water-drainage.Equally the existing collector in the Av. Freedom will be relocated, eliminatingexisting replacing it by another one to 4,30 ms of left side in block 25, 26 and a3.80 ms in block 27 of the Av. Freedom, unloading in block 28 of the same oneAv., transferring the 48 domiciliary connections of the 3 blocks.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO622.1.4 Management of the servicesa) Operational managementMacromediciónIn each sector a macromeasurer exists whose function is to measure the volume of water thatit happens in a certain time. Most of the measurers (in income asector) almost 100% are of the electromagnetic type of spool. The line measurersthey are in an electromagnetic 80% and a 20% of insertion ultrasound.ReturnThe primary system of distribution is sectored, which impliesseparation of the system in isolated zones denominated Sectors within whichthe level of the service to the user through the regulation of the volume can be controlled ofentrance and the level of the pressures by means of system SCADA, according to plans ofoperation pre-established, or at level of sector or sectors that conformdistrict.As of year 1997 the Projects and Works of Return at level began ofall Lima, having as main base “Estudio Definitive for the Return ofCentral system of Distribution Culvert - Centro”, made year 1996, undersupervision of the Project of Improvement of Marginal Areas PROMESAL(Unit of Administration).The mentioned project was based mainly on the fact that the primary network ofdistribution tapeworm the capacity sufficient not to distribute the volume that is producedby the plant of treatment at times of avenue of the Rímac river, in addition toproblems of operation and maintenance.The area covered in a beginning by this study of Return corresponds to the areaserved mainly by the South Line Center and Line, including 20 altogetherdistricts of Lima Metropolitan (15 in its totality and 5 partially).In order to be able to visualize better the reach of this study and its impact on the networkprimary of distribution, next their main characteristics are described.The Return implies the separation of the system of distribution in isolated zonesdenominated Sectors, by means of which improvements can be obtained in:- Level on watch to the user through the regulation of the entrance volume andlevel of the pressures.- To facilitate the equitable rationing of the water distribution at times ofshortage (Situation that has prevailed in Lima the last years).- To ensure the completion of the programs of reduction and control of the Water NoEntered.According to the made studies, a total of 340 sectors at level has been definedof this project, each district is divided in a determined number of sectors.Program of maintenance of the potable water systemsThe Centers on watch make the maintenance of the secondary system of networks, ofit forms preventive and corrective.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO63Preventive maintenanceThe activities of preventive maintenance of networks and water connections thatthey come making in the zone from the project are the following ones:• Bled of networks through faucets against fire• Revision of faucets against fire• Movement of return valves• Ramming intake through domiciliary connections• Taking of residual chlorine samples• Preventive maintenance of valves of networks• Preventive maintenance of faucets against fire• Cleaning and disinfection of reservorios and cisterns• Cleaning of measurersMedium repairThe activities of medium repair make the companies contractors, lowthe supervision of SEDAPAL. Its programming obeys generally topresented/displayed emergencies daily. These activities basically arefollowing:• Cleaning of potable water networks• Purge of faucets against fire and cameras• Change or replacement of pipes of water, faucets against fire, valvesin the network and of domiciliary connections• Repair of networks of water, valves in the network, faucets against fire anddomiciliary connections• Taking of chlorine samples in cisterns and reservorios• Cleaning and disinfection of reservorios and cisterns• Maintenance of valves of air, valves of interruption, faucets againstfire and reducing cameras of pressure.Program of maintenance of the sewage system systemsSimilarly that the water system, in the sewage system system takesactions of preventive maintenance and corrective.Preventive maintenanceThe activities of preventive maintenance that come making in the zone fromproject is the following ones:• Cleaning of cameras of solid retention, in order to avoid sedimentations andatoros in the secondary pipes.• Cleaning of pipes, using machine of buckets in the ratings withgreater incidence of atoros, according to the established programming.• In order to reinforce and to improve the evacuation of waters served in the system assewage system sections settle pipes of by-pass, that allow to distributeflow according to the capacities of the collectors, eliminatingrepresamientos.PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO64Medium repairThe activities that are made in the system are the following ones:• Repair of the mailboxes and colapsados collectors, as a result of hisantiquity, to overload of use and the high gas content that affects hisstructure.• Workings of desatoro, with rods of desatoro and Hydrojet machines.• Cleaning of cameras of retensión of solids with Hidrojet.b) commercial ManagementActive connections (correct situation) and Inactive (incorrect situation)At level Company, between the years the 2000 and 2005 total number of water connectionspotable it increased of 1´118,151 1´135,184 what means an increase of the 9,6% in 5years, which shows a favorable tendency of the market. To see following picture:Picture 2.35Metropolitan Total Potable Water connections in LimaThe evolution of the connections in correct situation of 903.740 in 20001´041,249 in 2005, it represents an increase of 15,2%, presenting/displayinga growth of the favorable market, which SEDAPAL must take advantage of forto increase the volume of its sales.Level project, the following picture shows 650.257 connections in situationcorrect in the districts that conform the area of influence of the project and55.285 connections in incorrect situation, registering the districts of S. J. ofLurigancho, San Martin de Porras and Comas the greater number of connections incorrect situation. The project represents 62% of the connections in situationcorrect at level Company. To see following picture.Total % Total % Total % Total % Total % Total %2000 903.740 87% 67.390 51% 61.266 46% 3.826 3% 132.482 13% 1.036.222 100%2001 933.473 88% 59.244 48% 59.408 48% 4.122 3% 122.774 12% 1.056.247 100%2002 968.200 90% 51.437 48% 54.664 51% 1.492 1% 107.593 10% 1.075.793 100%2003 989.589 90% 56.362 51% 50.741 46% 2.856 3% 109.959 10% 1.099.548 100%2004 1.013.709 91% 56.338 54% 46.556 45% 1.548 1% 104.442 9% 1.118.151 100%2005 1.041.249 92% 47.480 51% 44.832 48% 1.623 2% 93.935 8% 1.135.184 100%% 15,2 -29,5 -26,8 -57,6 -29,1 9.6(*) Clients of the network.Year(*)SituationCorrect(1)Incorrect Situation (5)Discharge WithoutTo invoice (4)Total(2+3+4=5)ProvisionCut byNon-payment (2)Low Volunteer(3)ConnectionsTotals(1+5=6)IncreaseAnnualPROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO65Picture 2.36Connections of the districts of the influence area Taboada PlantLevel of micromeasurement (total, operative and read)The districts of Free Town with 94,5% and San Miguel with 94,7% present/displaygreater level of micromeasurement within the area of influence of the project,whereas the districts of Independencia and Carmen of the Legua present/displaysmaller level of micromeasurement with 1,9% and 7.2%. To see Statistical E1- PictureTotal District – By Type of Invoicing - Annexed E.InvoicingThe 24 districts of the project, in the month of April 2006 have invoiced S/.33,331,138 (652.335 connections), of this amount S/. 25.158.530 (440,851connections) correspond to the invoicing by reading. On the other hand,connections in average and by allocation of reading are of 55.293 and 156,191respectively. To see E1 Picture - Statistical Total District – By Type ofInvoicing, Annexed E.LossesAt level of the project, it is not counted on information on losses in the system,but at level Company we allowed ourselves to make a comparison between the volumeof water produced with the invoiced volume, being observed that the water noentered it fluctuates between 44,14% and 41,62% between year 2000 and 2005respectively, levels that can be considered high.The company has undertaken a program of reduction of technical losses and notechniques, permanent since the entered water does not not only affect the volumeof sales but also the production costs.REGISTRY OF CONNECTIONS - April 2006INVOICED EQUIPMENT NOT INVOICEDCOMMERCIAL CUT SITUATION LOW DISCHARGE WITHOUT TOTALCORRECT BY VOLUNTARY NON-PAYMENT TO INVOICECARABAYLLO 19.335 1.223 837 12 21,407COMMAS 57.685 3.397 2.059 23 63,164RIMAC 23.856 2.107 1.465 11 27,439INDEPENDENCE 21.505 1.169 552 8 23,234SAN MARTIN DE P. 73.779 3.106 3.692 39 80,616OLIVE TREES 46.097 1.693 1.154 31 48,975CALLAO 53.945 3.552 3.469 36 61,002BELLAVISTA 11.003 348 300 3 11,654C. OF LEGUA 3.417 58 49 0 3,524PER IT 9.589 308 256 1 10,154END 1.119 30 108 0 1,257SURROUNDED 48.185 2.882 3.387 37 54,491BRENA 12.477 540 427 11 13,455JESUS MARIA 10.108 229 335 5 10,677VICTORY 27.753 1.863 1.656 31 31,303MAGDALENA 8.285 199 142 11 8,637TOWN FREES 12.507 192 194 6 12,899SAN MIGUEL 20.611 385 275 69 21,340AGUSTINO 23.114 687 685 15 24,501SANTA ANITA 20.711 414 891 16 22,032S.J.LURIGANCHO 107.532 2.890 2.707 135 113,264LYNX 9.772 498 253 22 10,545MIRAFLORES 16.394 693 569 37 17,693SAN ISIDRO 11.478 404 380 17 12,279Totals 650.257 28.867 25.842 576 705,542NOTE: IT DOES NOT INCLUDE CONNECTIONS OF OWN SOURCE BY DISTRICTS NOT TO BE AVAILABLEPROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO66Picture 2.37Produced, Invoiced volume of Water and Not enteredOn the other hand, the indicator of Water nonInvoiced to the month of December of the 2005it was of 41,08%, presented/displayed significant reductions in the first trimester of2006 according to the following picture:DilatorinessThe structure of the dilatoriness considered for the districts of the project,sample that the debt to the month of April of the 2006 is of S/. 3.202.616 of whichS/. 2.166.638 (9.647 connections) corresponds to the debt up to 2 months according toreport presented/displayed by the Equipment of Commercial Management. To see E2 Picture - DebtsTo receive - Annexed E.Structure and Tarifario LevelBy Resolution of Directive Advice no. 034-2006-SUNASS-CD, published inPeruvian the 22.07.2006, SUNASS approved of office the new structure would quarrelof SEDAPAL, effective from the 23/07/2006.m3 % m3 % m3 %2000 6 77.792 100% 3 78.600 55,86% 2 99.192 44.14%2001 6 60.120 100% 3 83.709 58,13% 2 76.411 41.87%2002 6 49.020 100% 3 90.866 60,22% 2 58.154 39.78%2003 6 60.319 100% 3 92.964 59,51% 2 67.355 40.49%2004 6 23.149 100% 384.019 61,63% 239.130 38.37%2005 6 69.724 100% 391.011 58,38% 278.713 41.62%(*) Invoiced clients of the network.Year(*)Produced Invoiced (*) Water NoEnteredIN D ICADOR Anua l 2005 ENE FEB M AR ABR (*)WATER N Or INVOICED 41,08 42,98 34,85 39,18 36.11(*): PRELIM IN AR NOT Or FIC IAL2006PROFILE: CONSTRUCTION OF THE PLANT OF RESIDUAL WATER TREATMENTTABOADA And SUBMARINE EMISSARY - DISTRICT And PROVINCE Of the CALLAO67