Performance Evaluation of Irrigation System in Cikeusik Irrigation Area, Cirebon Regency West Java Province

West Java Province is known as an area that plays an important role in agricultural production in Indonesia. Cirebon is a district in West Java which is in the eastern part bordering Central Java. Many areas of irrigation or Irrigation Network who experience a decrease in performance, one of whom who experience decreased performance is Cikeusik Irrigation Area. This time, the Irrigation Cikeusik Management implemented by Balai Besar Wilayah Sungai (BBWS) Cimanuk Cisanggarung, Directorate General of Water Resources, Ministry of Public Works and Public Housing. The Irrigation Cikeusik receive water supplies from Dam Cikeusik in the Cisanggarung river with the area in 6899 Ha. The purpose of this research is to analyze and calculate what percentage in the performance of the Sub Regional Irrigation Maneunteung West and Sub Regional Irrigation Maneunteung East on irrigation area Cikuesik using the Regulation of the Minister of Public Works No. 32 / PRT / M / 2007 on Guidelines for Operation and Maintenance of Irrigation. Some aspects of the irrigation system set out in the Regulation of the Minister of Public Works No. 32 / PRT / M / 2007 are physical infrastructure, plant productivity, supporting facilities Maintenance Operation, Maintenance Organization Operations personnel, documentation and water user associations (P3A). The research method is by direct observation, questionnaire and test methods research is done by Structural Equation Modeling (SEM). The performance evaluation of irrigation systems shows the percentage of different figures. Assessment is based on a survey conducted in West Sub Maneunteung irrigation area is 75.95% and 71.70% based on the respondent data. A difference of 4.26%, thus the performance of the irrigation system is ranged between 71.70% up to 75.95% or an average of 73.82%. Assessment is based on a survey conducted in Sub irigation area East Maneunteung is 76.10%, while 72.41% of respondents based on the data.The difference of 3.69%, thus the performance of the irrigation system is ranged between 72.41% up to 76.10% or an average of 74.26%. Based on the percentage of those with regulation of the Minister Public Works No. 32/PRT/M/2007 condition Sub irrigation area West Maneunteng and East Maneunteung have good performance.


I. INTRODUCTION
West Java Province is known as an area that plays an important role in agricultural production in Indonesia. From the data of Regional Irrigation which is located in West Java province numbered 855 spread over 27 districts / cities. Cirebon is a district in West Java which is located in the eastern part bordering Central Java. In the agricultural sector, Cirebon Regency is one of the rice-producing areas are located in the path of the North Coast (northern coast). Many Regional Irrigation or Irrigation Network decreased performance among those who experienced a decline in performance is Regional Irrigation Cikeusik.
Regional Irrigation Cikeusik located in the River Basin (WS) Cimanuk Cisanggarung, Watershed (DAS) Cisanggarung. while administratively located in Cirebon. Currently Regional Irrigation Cikeusik management is carried out by the Central River Region (BBWS) Cimanuk Cisanggarung, the Directorate General of Water Resources, Ministry of Public Works and Public Housing.
Regional Irrigation Cikeusik in the operations Irrigation is divided into irrigation Network West Maneunteung and irrigation Network East Maneunteung as shown in Figure 1. Performance Irrigation Network Cikeusik (irrigation Network West Maneunteung and irrigation Network East Maneunteung) is estimated to have decreased its operating performance. This performance degradation is very influential in the smooth running and operation of the irrigation water that will eventually affect the production of rice Regional irrigation Cikeusik.

II. LITERATURE REVIEW Asset Management
Asset management is the overall process of managing assets in relation to the asset itself or an asset to the community in the surrounding areas. This process is always there during the life cycle (Life Cycle) of these assets with the aim to optimize the function of assets to provide services and improving quality of life (Leong, 2004). Asset management cycle refers to the stages inundated field SIDLACOM (Survey, Investigation, Design, Land Acquisition, Construction, Operation and The 2 nd International Conference on Civil Engineering Research (ICCER) 2016 " Contribution of Civil Engineering toward Building Sustainable City" 13 Maintenance) and supported by the Monitoring and Evaluation and Disposal / Renewal, as shown in Figure 2.

Asset Management Of Irrigation
Asset management of irrigation is part of asset management is a systematic and structured management processes for planning maintenance and funding for the irrigation system in order to achieve a defined level of services and sustainable use of water for irrigation and irrigation network users with financing irrigation asset management as efficient as possible (Regulation PUPR No. 12/PRT/M/2015 about Exploitation and maintenance of the Irrigation Network).

Performance Evaluation Of Irrigation System
Performance evaluation of irrigation system in question is an action or activity to find out the condition of the irrigation system performance compared with the standard plan. As for the performance of the condition of the total of such components in the following description. Irrigation network performance is heavily influenced by the physical condition of the building, the function of the channel, and other factors related to the management of the irrigation network.Irrigation system performance assessment is part of the management of irrigation and assessment is usually conducted once a year with a view to monitoring the functions and performance of all aspects of the irrigation system. This assessment was carried out by the regional manager Irrigation in accordance with their respective authority.
Performance evaluation of irrigation system surroundings of the Ministry of public works and Housing, Directorate General of water resources has been set in the regulation of the Minister of public works no. 32/PRT/M/2007. Performance assessment are grouped in 6 (six) aspects as in following details. 1. Physical Infrastructure 2. The productivity of the plant 3. The supporting Operation and Maintenance (OM) 4. Personnel/Organizations Implementing OM 5. Documentation 6. Institutional Conditions water user associations (P3A)

The concept of Structural Equation Modeling (SEM)
Analysis using Structural Equation Modeling (SEM), performed to elucidate more thoroughly the relationship between variables that exist in the study. SEM is used instead to devise a theory, but rather is intended to examine and justify a model. Therefore, the main requirement using SEM is to build a hypothetical model that consists of the structural model and the measurement model in diagram form paths based justification theory. SEM is a set of statistical techniques that allow testing of a series of relationships simultaneously. The relationship established between one or more independent variables (Santoso 2011). Two reasons underlying the use of SEM is (1) SEM has the ability to estimate the relationship between variables that are multiple relationships. This relationship is formed in the structural model (relationship between the dependent and independent constructs).(2) SEM has the ability to describe the pattern of the relationship between latent constructs and manifest variables or variable indicator

III. METHODS Location Research
Location of research is in the area of irrigation Cikeusik located in Cirebon regency, West Java province. The total area of irrigated area Cikeusik based on data BBWS Cimanuk Cisanggarung is 6899 ha. As for the large number of districts and raw rice on 6 interpreter Cikeusik DI water (7 subdistricts) are shown in Table 1 below.

Study Design
In this study the steps taken to achieve the objectives described in the flow diagram as shown in Figure 3.

Preparation Of Diagram Lines
Diagram of the latent variable path variable and scalable performance level Irrigation Areas used in this research is as described in

Data Analysis
Data analysis in this study conducted on primary data and secondary data. Based on secondary data obtained on condition eksiting irrigation network. irrigation network West Maneunteung and East Maneunteung, will be analyzed descriptively to give a description of the condition Irigation Area of Cikeusik (Sub irigation area West Maneunteung and East Maneunteung). While the primary data analysis was conducted confirmatory factor analysis.This analysis is used to test the construct (construct) or latent variables that can not be measured directly and objectives confirmatory factor analysis was to confirm or test the model, the measurement model formulation derived from the theory.
If the model of the confirmatory analysis of hypothesized already meets the criteria of appropriateness, then be discussed aspects of the performance of the irrigation system. The primary data analysis is done on the

IV. RESULT AND DISCUSSIONS General condition of the irrigation Area Cikeusik
Irrigation area Cikeusik is at Cirebon district which is part of the province of West Java which is located in the eastern part and is the limit, as well as the gates of the Central Java province. Viewed from ground level/daratannya can be distinguished into two parts, the first lowland areas are generally located along the northern coast of the island of Java, that Gegesik, Kaliwedi, Kapetakan, Arjawinangun, Panguragan, Klangenan, Gunung jati, Tengah Tani

Assessment Of The Performance Of The Irrigation Network West Maneunteung and East Maneunteung
Assessment of the performance of the The Irrigation Network West Maneunteung done by tracing a network of irrigation. The results of the assessment of the performance of the Sub irrigation area West Maneunteung area show on table and the results of the assessment of the performance of the Sub irrigation are East Maneunteung covers 6 aspects i.e. physical infrastructure aspects, aspects of productivity cropping, supporting OP personnel implementing the organizational aspects, documentation and P3A in show table 3.

The analysis and Test Data the respondents based on Structural Equation Modeling (SEM)
In analysis and test data on respondents will be explained about the steps undertaken in the analysis and Six independent variables in question is the physical Infrastructure (X 1 or ξ1), crop Productivity (X 2 or ξ2), means of Supporting OP (X 3 or ξ3), the Organization Implementing the human resources OP (X 4 or ξ4), documentation (X 5 or ξ5), documentation (X 6 or ξ6), while the dependent variable is the performance of irrigation systems (η) and variable results (depend) Qmax/Qmin is the index increased pertanaman (Y1), increasing crop yields (Y2), vast underserved water increases (Y3). Of the variables are arranged in the form of flowcharts.
The flowchart of the next structural equations are compiled, and continued with determination technique of estimation. This technique is done gradually through the estimation model by means of the technique of measurment confirmatory factor analysis and structural equation models continued with. It is intended to look at the suitability of the model and the relationship of causality to be built.
Test Data Analysis with confirmatory At this stage of the analysis will be performed to test for multidimensional confirmatory of an invalid constructs with latent variables. Each Analysis is also testing the validity of a theoretical invalid constructs. Each latent variable used in the study was formed based on the theoretical concepts with several indicators or manifest. Analysis of confirmatory further test whether such indicators is a valid indicator of measuring latent as invalid constructs. In other words, whether the indicators are the mutidimension of a latent, or invalid constructs instead of mutidimension. The next step is testing or analysis of the model of SEM in full. Testing the model against the Structural Equation Models (SEM) performed with two testing, i.e. testing the suitability of the model and test of significance test of regression coefficient through causality. Model used for analysis is a model of recursive model where all arrows have one direction without rotation of the feedback, so as not to be correlated with other variables. Calculation analysis of confirmatory performed using SPSS software version AMOS ver. 21 as shown in Figure 5.
Description for figure 5 are: ξ : latent variables exogenous X and Y : measured variable δ : measurement error λ : weighting coefficient factor variable

Test Data validation With level 2 Confirmatiry Analysis
Analysis of factors confirmatiory the second level in this study was used to test the indicators of all the variables that make up the overall model. In this study, there is a latent variable 6 or independent, i.e. indicators which affect the performance of irrigation systems, which include: Physical Infrastructure (X 1 or ξ1) Cropping, productivity (X 2 or ξ2), Supporting OM (X 3 or ξ3), organization of human resources OP (X 4 or ξ4), documentation (X 5 or ξ5), P3A Condition (X 6 or ξ6) which as a whole consists of the 24 observed variable as variable constituent and 1 endogenous variable observed variables, with 3 as a variable result. In the result above the value p all variables X = *** < 0.05 so that H0 is rejected and the H1 is accepted, which means that the all variables X positive and significant effect against the variable Y.

Data Normality Test With Univariate and Multivariate Normality
In terms of the distribution of the test evaluation over data normality assumption is if the value in the column critical ratio (c.r.) is no greater than ± 2.58, then it can be said that the distribution of the data is not normal. Because evaluation is carried out using the criteria of normality critical ratio skewness value of ± 0.01 significance level at 2.58. The data can be said to have a normal distribution if the value of the critical ratio skewness value under the absolute price 2.58.
From the results as shown table 4, the analysis of the value normality critical skewness value, almost all indicators has a value smaller than c.r. ± 2.58. Thus, it can be said that in all of the univariate Gaussian.

Reliability Test with the test Construct of Reliability
Test the Construct of Reliability that is testing the reliability and consistency of the data meets the criteria in Cronstruct Reliability > 0.7. The value of the Construct of Reliability among up to 0.6 0.7 can still be accepted on condition the validity of invalid constructs (indicators) in the model is good. The success of the irrigation system performance must also be supported by community participation in activities either in P3A meetings/conferences, follow the search network irrigation, the irrigation network improvements and natural disasters, the dues for tertiary irrigation network improvements and planning layout plans and patterns of cultivation.

Use of Structural Equation Modeling (SEM) in the
test data and test analysis model, against the respondent data to evaluate a success implementing an activity showed satisfactory results. 5. for the performance of irrigation systems can serve with optimal periodic examination is required on each wall, repair irrigation network channels water door seta suffered damage and also outreach to farmers about the importance of irrigation are maintained and not to be abused or tampered with 6. In this study, the authors obtained the percentage of ratings with both categories are expected to next year, BBWS Cimanuk Cisanggarung have to able to manage Cikeusik Irrigation area so as not to experience a decrease as well as be able to archive data related to evaluation of materials for Cikeusik Irirgation are for better performance in the coming year.