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Watcr Q!!alit\1 lmprovcmct1t at1() COf1scrvatiof1l'rojcct
Watcr Q!!alit\1 lmprovcmct1t at1() COf1scrvatiof1l'rojcct
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4.7.1 'Vater Quality<br />
The facility does not conduct water quality tests on any of the wastewaters. However, WAJ is<br />
monitoring the facility's wastewater discharge. TIle analytical results of the WAJ monitoring from 1990<br />
through 1994 are presented in Table 2, WAJ Wastewater Discharge Monitoring Analytical Results.<br />
The TSS concentrations have ranged frol11 12 mgjL to 305 mgjL. The IDS concentrations have<br />
ranged from 768 mgjL to 7,096 mgjL. Thus, this wastewater could not be discharged to wadis or<br />
reused for irrigation without further treatment. Metal concentrations are less than 1 mg/L. No<br />
monitoring for oil and grease, a typical contaminant in rolling mill wastewter, has been conducted.<br />
Sampling of the rolling mill wastewater discharge was conducted as part of this audit on January 16,<br />
1995. During the two site visits, no visible oil and grease was observed and no analyses conducted for<br />
oil and grease. TIle analytical results of this sampling are presented in Taqle 3, Sampling Analytical<br />
Results. The analytical results reveal that some removal of TSS and the metals is occurring across the<br />
treatment system. The treatment system is achieving a TSS removal efficiency of approximately 50<br />
percent with a 95 percent reduction of the iron concentration. However, the treated wastewater<br />
discharge is still above the Jordanian Standard 202 for IDS, chloride, chromium, and cadmium.<br />
The facility conducts regular testing of the water from the water softener and the water in the cooling<br />
tower. TIle 1994 analytical results for the cooling tower water are presented in Table 4, Cooling Water<br />
Analytical Results. TIle parameters analyzed include: pH, total alkalinity, total hardness, TDS,<br />
chloride, .and phosphate. The total hardness is generally less than 30 mgjL and the TDS<br />
concentrations range from 1,300 mgjL to 2.()()O mg/L.<br />
4.6.2 'Vater Quantity<br />
The meltshop and rolling mill have water meters that record the total quantity of water used.<br />
However. the facility does not record the meter readings on a daily basis, so there is no water use data.<br />
There are no metering devices on any internal water lines or wastewater pipes. Therefore, quantities<br />
for the following water uses within the. facility arc unknown:<br />
• Contact cooling water for the continuous casting;<br />
• Noncontact cooling water for the furnaces;<br />
• Noncontact cooling water for the rolling mill;<br />
• Sanitary \vastewater; and<br />
• Spills, leaks and clean-up.<br />
17<br />
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