Process step | Hazard events | Hazard type | Existing control measures | |
Catchment | High turbidity in Azraq Spring and probability for Pollution due to the flow of rainwater in the valleys that lead to the spring during the winter | Microbial chemical physical | Stop the station | |
Contamination of Azraq Spring due to the leakage and flood of sewage lines and drains due to the overload of the connections which causes by the population increase in the area and the connection of rain water to the sewage network, causing infiltration of wastewater to the karst aquifer | Microbial chemical physical | • The presence of a Sharia treatment plant • Maintain the integrity of the facilities for the manholes • Preventive maintenance programs by the Balqa Water Department • Activation of laws, regulations, instructions: including the application of penalties | ||
Pollution of Azraq Spring due to active and non-active cesspits present in the catchment area causing infiltration of wastewater to the karst aquifer which influence the spring water | Microbial chemical physical | • The existence of the Code of Practice for the construction of cesspits, in addition to the drilling of cesspits during the process of connecting with the sewage network from the Ministry of Public Works | ||
Pollution of Azraq Spring due to the presence of flat and fractures in the lift line leading to the wastewater treatment plant (WWTP), Mahesh and Fuhais | Microbial, chemical physical | • The presence of a Sharia treatment plant | ||
Pollution of Azraq Spring due to flooding in the lift station as a result of overload due to the connection of rain water to the sewage network | Microbial chemical physical | • Activation of laws, regulations, instructions: including the application of penalties | ||
Pollution of Azraq Spring due to the infiltration of fertilizers, pesticides from agricultural activities in the area to the shallow water basin | Microbial chemical physical | • The Water Resources Protection guideline for 2011. • Operating licenses issued by the Ministry of Agriculture and the conditions required to obtain these licenses, in addition to the approval of the Ministry of Environment to obtain these licenses | ||
Pollution of Azraq Spring because of animal waste from barns and sheep grazing areas to the shallow water basin | Microbial chemical physical | • The Water Resources Protection guideline for 2011. • Operating licenses issued by the Ministry of Agriculture and the conditions required to obtain these licenses, in addition to the approval of the Ministry of Environment to obtain these licenses | ||
Pollution of Azraq Spring due to spilling of industrial Wastewater from fuel station and car washing | Microbial chemical physical | • The presence of a Sharia treatment plant | ||
Treatment | Contamination in the outlet from the MF unit due to the failure of the filter membranes | physical Microbial | • Keep 2 of the Mf unit stand by. The presence of UV purification unit after the MF unit • The extra barrier of the final chlorination of productive water is considered one of the safety barriers against bacterial contamination | |
The probability of exceeding the reference limits of the Jordanian standard of water produced due to decrease the intensity of radiation and the dose of disinfectant and low efficiency of purification of raw water from the ultraviolet sterilization unit because bulbs are not cleaned or lamps come near the shelf life | Microbial | • The extra barrier of the final chlorination of productive water is considered one of the safety barriers against bacterial contamination | ||
| Shortage of production quantities of the station to disable the work of air valves, which leads to high pressure of the unit and stop automatically due to the failure of the air-feeding system of the air valves in the MF filter unit | physical | • Preventive maintenance programs issued and prepared based on catalogs and standard operating books • Availability of spare parts • The existence of a backup air system | |
Distribution | Increase in turbidity due to withdrawal of soil to the network due to fractures in it | physical | • Response speed to repair broken water lines and quality complaint • Matching materials used with relevant specifications | |
Pollution of water due to the flood of sewage manhole that result from the clogging of sewage networks | Microbial Chemical physical | • Preventive maintenance of sewage lines close to water networks • Preserving excess residual chlorine in the distribution network according to the Jordanian Standard for drinking water • Existing of qualified technician that can deal with situation | ||
Pollution of water due to accumulation of soil and sediments at the end of the lines, especially in low areas | Microbial physical | Increase the length of the pipe line about 5 m to give sediment and soil extra space to accumulate | ||
High water turbidity due to the entry of soil to the network through broken pipes, due to maintenance of damaged networks, which include repair or replacement of main lines | physical | • Regular maintenance of pressure dampers in the area • Increase staff efficiency |