Reviewing the Chemical Quality (Nitrate, Fluoride, Hardness, Electrical Conductivity) and Bacteriological Assessment of Drinking Water in Svadkooh, Iran, during 2010-2011

Background and

Analysis, monitoring and control of water quality, including water and sanitation and health care are the duties of companies. Because of the quality of drinking water, a comprehensive research was carried out in Savadkooh, Iran, in this study.

Data of Water and Sewage Company of Savadkooh were analyzed during 2010 and 2011. Water samples were seasonal (chemical) and month (biological) sources water in Alasht Spring by Halli Khamen Spring and a well and two reservoirs in Zirab Spring, Golnab Valleys and wells No. 4 and 5 as well as their reservoir, and in Shirgah were wells No. 1 and 4 and 5 and the water reservoir and springs Golnab valleys in Polsefid by Flord Spring and water and sewage company of Savadkooh repository which were analyzed in the laboratory.

In Polsefid, the mean total hardness, mean electrical conductivity and the average pH were 173 mgCaco3/l, 359 µS/cm, and 7.8, respectively. The amounts were 168 mgCaco3/l, 286 µS/cm, and 8 in Zirab, 184 mgCaco3/l, 344 µS/cm and 7.8 in Shirgah, and 172 mgCaco3/l, 333 µS/cm and 7.9 in Alasht, respectively. In Polsefid, 87% of samples in 2010 and 85% in 2011, in Zirab, 91% of the samples in 2010 and 100% in 2011, in Shirgah and Alasht, all the samples in 2011 and 2012 were coliform-free. Nitrite and nitrate levels in all water samples in were lower than standard and in acceptable level. In all samples, residual chlorine was at optimal level, and the amount of fluoride was less than desirable.

Hardness of all the cities water were described as moderate and acceptable. The electrical conductivity of the water in all areas was desirable. The pH of water samples in all the cities were within acceptable limits. The amount of fluoride in the water samples was well below so that it requires to be taken into consideration.