Today, along with the increasing importance of water in the world, paying attention to related and influential industry in ensuring the health and safety of people and the environment has been very important  . Water harvesting and delivering it to the consumer, apart from the shortcomings and limitations of the World Wide Web, however, is done. But neglecting the destructive effects of its wastewater is the issue that has been neglected in some societies. While in advanced Western societies with a proper understanding of the necessity of a vital network of wastewater, serious steps have been taken many years ago while in Iran are facing with a delay in this field in recent several decades  . Achieving sustainable development and realization of creating healthy city, observing environmental hygiene practices, controlling environmental pollution, specifically in the field of water and wastewater, and avoiding polluting water resources are important factors to provide public health  .
Urban wastewater collection system generally are made in order to collect and improve the quality of collected wastewater from urban population centers and sometimes some industries’ wastewater mixing with municipal wastewater  .
Due to technical issues, economic and environmental aspects, wastewater facilities of cities require maintenance and protection  such as water and gas distribution networks. The importance of proper operation of the wastewater facilities is in its planning and implementation. It results in increasing efficiency, longer life and reduces public facilities during the period of its operation  . As well, lack of accurate operation of these facilities resulted in urban environmental pollution resulted in prevalence of different diseases  . The water and wastewater company of Mashhad M (a religious city and one of the metropolises of Iran) has been designing, implementing and exploiting the sewage network of the city for many years to protect the environment, reducing the health problems caused by wastewater disposal along the road, control and prevention of infiltration and contamination caused by the disposal of raw sewage to aquifers and the reuse of effluent from wastewater treatment plants. At present, part of the city’s sewage network has been implemented and exploited. Part of the city still does not run this project and waste disposal is traditionally done. In the other part, the sewage network is under construction and construction.
Citizens as an important social factor and the user of drinking water providing services supply and wastewater disposal play important role in water and wastewater plans development projects  . Problem and significance of this investigation is due to attitude of citizens about wastewater network. Hence, according to importance of this subject, assessing the attitudes and awareness level of citizens as an affecting variable in the implementation and proper operation of the wastewater network and its related installations, the role of education as a factor affecting the promotion of knowledge level and attitudes of citizens in this matter is investigated.
This is a descriptive-survey research. In this research, method and information gathering tool in addition to library method, Internet search and archived reports of water and wastewater company of Mashhad, the field method of the citizens’ specific questionnaire and interviews of managers and executives and sewage companies in the water and wastewater company of Mashhad has been used.
The hypotheses include raising awareness level of citizens in the effective implementation and utilization of wastewater network. Customer satisfaction is effective over the implementation of water and sanitation development projects. Population of this research includes citizens of water and wastewater company of Mashhad as 384 people by simple random method. Formal validity was used in order to validate the validity of the questionnaire. Thus the questionnaire was distributed among managers and experts of Mashhad Water and wastewater Company. Validity of the questionnaire was assessed by their views. SPSS was used for descriptive and inferential analysis. Kolmogorov-Smirnov test was used to test normality of data. One-sample t-test, chi-square test and Spearman rank correlation test were used to test the hypotheses. Viewpoints of 10 managers, experts of water and wastewater company of Mashhad were used to confirm validity of the questionnaire. For calculating reliability of the questionnaire SPSS 18 with Cronbach’s alpha was used. The trust factor was calculated for 30 people with Cronbach’s alpha which results in Table 1, as below.
According to the Table 1, Cronbach alpha reliability coefficient for the questionnaire is equal to 0.715 (at least Cronbach’s alpha) that is higher than 7% (minimum amount of Cronbach’s alpha). Hence, reliability and validity of the questionnaire is good.
3. Discussion and Results
Before examining hypotheses of research, in order to learn how to answer questions, the questionnaire was studied by tables and frequency charts. Statistical data describing the results of the questionnaires based on respondents’ demographic characteristics including age, sex, education, occupation, etc. are as follows:
− Age of most of respondents (38.5 percent) is between 25 and 35 years.
− Most of respondents (54.4 percent) are male.
− Education level of most of respondents (33.9 percent) is bachelor.
− Most of respondents (34.4 percent) are employees.
Table 1. Calculation of reliability (Cronbach’s alpha).
Figure 1. Familiarity level of respondents with Wastewater network of Mashhad.
Table 2. Familiarity level of most of respondents with wastewater collection and its facilities.
network and its facilities is 37.2%. In addition, 18.2% of the respondents are not familiar with wastewater network and its facilities familiarity level of 37.2% of respondents is low, 3.6% is high, 3.4% is very much.
According to the Figure 2 and the Table 3, the importance level of most respondents for the implementation of the wastewater collection system, is medium (56 percent). Also, importance level for 10.6% of respondents is very much, for 27.9% is much, for 3.9% is low, and for 1.6% is very low.
According to Figure 3 and Table 4, familiarity level of most respondents with public relation services and public education of water and wastewater company is low (38.3). In addition, 37.5% of respondents are not familiar with public relation services and public education of water and wastewater Company of Mashhad. Familiarity level of 23.2% of respondents is high somehow. Notably, familiarity level of none of respondents is not very much.
According to Figure 4 and Table 5, most of respondents are not familiar with information system 122 of water and Wastewater Company of Mashhad at all (41.7%). Around 31% of respondents are familiar with the information system 122 of Water and wastewater Company low, 23.7% are familiar with the information system 122 of Water and wastewater Company somehow, 2.3% are familiar with the information system 122 of Water and wastewater Company very much, 1.3% are familiar with the information system 122 of Water and wastewater Company very much.
Figure 2. The importance level of implementation of wastewater collection system.
Figure 3. Familiarity level with public services and public education of water and wastewater company.
Figure 4. Familiarity level with the information system 122 of water and wastewater company.
Figure 5. Familiarity level of the operational management of their residential area.
Table 3. The importance level of wastewater collection system in view of respondents.
Table 4. Familiarity of most respondents with public services and public education of Water and wastewater company in view of respondents.
Table 5. Familiarity level of citizens with information system 122 of water and Wastewater Company in view of respondents.
Table 6. Familiarity level of citizens with operating management of life place in view of respondents.
operating management of their residential area at all (40.1%). Familiarity level of 38.3% of respondents is low, 19.5% of respondents are somehow, 1.8% of respondents are high, and 0.3% of respondents are very much.
According to Figure 6 and Table 7, most of respondents have not referred to operating management of their life region (49.7%). Refer level of 24% of respondents is low, refer level of 20.8% of respondents is somehow, refer level of 82.5% of respondents is much, refer level of 3% of respondents is very much.
According to Table 8 and Figure 7, most of respondents believe that the effect level of education on raising awareness of citizens on the implementation and proper operation of the wastewater network is very much (49.5%). In addition, 28.4% of respondents believe this impact level is very much, 14.6% is in average
Figure 6. Refer level to operating management of wastewater.
Figure 7. Effect of Education on promoting awareness of the citizens on the implementation and proper operation of the wastewater network.
Table 7. Referring amount of citizens to operation management of residence region in viewpoint of respondents.
Table 8. Impact of education on raising awareness level of citizens in proper implementing and operating of wastewater collection system in viewpoint of respondents.
level, 6.8% is very much. In addition, 0.8% of respondents believe that education has no impact on raising awareness level of citizens on proper operating and implementation of wastewater network.
According to Figure 8 and Table 9, satisfaction level of most of respondents of performance of water and wastewater company in providing services is average (43.6%). Satisfaction level of 32.9% of respondents is low, satisfaction level of 6% is high, satisfaction level of 1% is very much. In addition, 16.7% of respondents are not satisfied with performance of wastewater company in providing services at all. The Table 10 shows comparison between descriptive results of questions of questionnaire based on priority level and importance level in viewpoint of citizens.
After describing the questionnaire data, hypotheses were tested and data were analyzed in two descriptive and inferential statistics. In order to describe the above-mentioned data, bar graphs, frequency tables and statistical indicators were used such as frequency, percentage, average. Inferential statistics was used including Kolmogorov-Smirnov test for normality of the data and one-sample t-test, chi-square test and Spearman rank correlation test were used to test the hypothesis.
First hypothesis: promote citizens’ awareness level in effective implementation and proper operation of the wastewater network.
Single-sample t-test was used to investigate the relationship between two variables including “raise the level of awareness of citizens” and “implementation and proper operation of sewerage network”.
According to the Table 11, we see that average responses of citizens to the effects of promoting citizens’ awareness level in implementing and proper operation of sewerage network is 4.44 that is larger than average mean μ = 3. Sig is 0 that is smaller than 0.05. T-value is 12.55 that is a positive amount. Hence, H0 is rejected with 95% confidence. According to significant relationship between the two variables, it is claimed that raising awareness of citizens in the implementation and utilization of sewerage network is effective and h1 is confirmed.
The second hypothesis: customer satisfaction over the implementation of water and wastewater projects is effective.
Table 9. Citizen’s satisfaction with the performance of water and wastewater services in terms of respondents.
Table 10. A comparison between descriptive results of questions of questionnaire based on priority level and importance level in viewpoint of citizens.
Table 11. One-sample t-test results (first hypothesis).
Figure 8. Satisfaction level of citizens of performance of water and wastewater company in providing services.
Single-sample t-test was used in order to investigate relationship between “customer satisfaction” and “implementation of water and wastewater projects”.
According to the Table 12, it is observed that the average of customer satisfaction on implementation of development projects of Water and Wastewater Company is 57.3 that is larger than the average assumptions (μ = 3). Sig is 0 that is less than 0.05. Also, t-value is 12.97 that is a positive amount. Hence, H0 is rejected with 95% confidence. According to significant relationship between the two variables, it is said satisfaction level of clients on implementation of clients is effective on water and sanitation development projects.
According to Table 13, Spearman’s rank correlation coefficient value between awareness of people and education level is 0.237. As sig are 0, which is less than 0.05. Hence, it is claimed there is a significant relationship between awareness of people and their education level. As the correlation coefficient is positive, it is a positive and direct relationship i.e. more educational level of people results in higher awareness of sewerage network and its related installations.
According to Table 14, Spearman’s rank correlation coefficient value is 0.266 that is larger than 0.05. Hence, H0 is accepted by 95% confidence. So, there is not significant relationship between awareness of people and their age.
Based on the Table 15, the amount of Spearman’s rank correlation coefficient between the awareness of the people and their job is 0.122. As sig level is 0.017 and is less than 0.05, hence there is a significant level is 0.017, that is less than 0.05, there is a significant relationship between awareness of people and their job. As correlation amount is positive, the relationship is positive and direct i.e.
Table 12. Results of one-sample t-test (second hypothesis).
Table 13. Spearman rank correlation test results between the public awareness and education level.
Table 14. Spearman rank correlation test results between knowledge level and age.
Table 15. Spearman rank correlation results between the awareness of people and job.
due to higher people’s educational level in society, their awareness of Sewerage network and its related installations would be more.
According to Table 16, Chi-Square amount is 29.313. As sig is 0 that is less than 0.05, there is a significant relationship between people’s awareness and their gender. According to Table 17, awareness amount about sewerage network and its related installations among female respondents was very low among 16%, low 0.48, average in 30.9%, much in 0%, very much 5.1%.
In addition, awareness level about sewerage network and its related installations among male respondents in 20.1% was very low, in 28.2% was low, in 43.1% was average, in 6.7% was much, in 1.9% was very much. Generally, average level of awareness about sewerage network and its related installations in men is more than women. Also Figure 9 shows compare the awareness of the sewerage network and its related installations between male and female respondents too.
Wastewater collection and treatment projects with many advantages, provide accessibility to important goals including protecting the environment, preventing pollution of water resources, development of public health and the reuse of
Figure 9. Compare the awareness of the sewerage network and its related installations between male and female respondents.
Table 16. Results of chi-square test (Chi-Square).
Table 17. Frequency and percentage of people awareness based on gender.
wastewater in various sectors, especially agriculture. It would be possible by comprehensive planning. The implementation of such plans is inevitable due to psychological impacts and human and society health  . In some cases, drainage projects have been implemented without real needs assessments and studies, with high costs. But in practice, good performance is not achieved and installations are gone out of benefit before expiration of benefit life. In some cities due to the lack of a coordinated approach, there is an unbalanced growth in different sectors of sewage plans such as networks implement and construction of sewage treatment plant under assumption attracting clients of wastewater  .
According to the results, lack of public welcome of wastewater plan due to management problems, social costs, economic costs, cultural costs, lack of informing, lack of satisfaction and trust of citizens of performance of wastewater and water companies, low level of awareness, their familiarity and awareness about wastewater facilities are important points that provide problems in realization of the goals.
It seems reversal in policy, a review of existing practices in wastewater projects of technical feasibility in terms of economic, social and environmental aspects, as well as implement of methods to increase citizen participation as an important social factor and user of drinking water supply services by water companies by increasing their awareness level of water and wastewater facilities and advantages of implementing wastewater facilities plans and decreasing environmental consequences plays important role in water and sanitation development projects  . Training and notifying residents of the city can be effective in the way of creating proper attitudes, thoughts and behaviors  .
Citizens as recipients of water and wastewater services are required to increase their awareness of the benefits of implementing sewage projects and reducing environmental impacts through education, in addition to attracting them into participating in the proper implementation and operation of sewage installations. Therefore, it is necessary to adjust the education provided to citizens along with process, structure and integrated program. The hope is that with a scientific look at and fundamental view to the Water and Wastewater Company Mashhad, the field of realization of this wish is provided. Planning for citizenship teaching in order to move from the status quo to the optimal situation requires the gradual formulation and implementation and evaluation of programs in correct and scientific way.
As all of people acknowledged, cultural development and changing require time and patience. It is essential to apply citizenship training resources for their participation and social mobility of citizens. In this way, it is necessary to use some methods with social acceptance with positive changes adaptable with social cultural environmental criterion. The process of developing a special education program for citizens includes: identifying educational needs, setting educational goals, organizing educational content, selecting techniques and methods of training, identifying required educational resources, preparing lesson plans, preparing tests and methods for measuring the amount of Learn learners, run and administer education and assessment of educational program.
 Jani Far, H. (2003) A Study on Monitoring and Measuring Program of Customer Satisfaction of Ahvaz Water and Wastewater Company. MA Thesis, Educational Management, Islamic Azad University, Ahvaz, 5.
 Bedelians Gholi Kandi, G., et al. (2007) Introduction to the Municipal Sewer Network Administrator. Center for Research and Improve the Efficiency of Water and Wastewater Industry, the Department of Energy, 78 p.
 Beygi, F., et al. (2008) Private Sector Participation in the Operation of Water and Wastewater Facilities, Why and How? The Fourth Meeting of the Directors of Water and Wastewater, Oct 17-19 2008, Tehran, Iran, 76-78.
 Babakhani, M., et al. (2008) Methods for Calculating the Social Cost of Implementation and Reconstruction of Sewer Network. The Second Conference of Water and Wastewater with Operation Approach, Oct 8-9 2008, Tehran, Iran, 18-19.