Water analyses were conducted on 1,525 underground water laid in the western district of Korea’s South Gyeongsang Province, from January 2007 until July 2010, according to sections, factors, fountainheads and inter-factor correlativities. The following are the results.
1. As a result of local incongruity rate, 22.2% in inland areas, coastal areas and 26% showed a high value comparatively. costal areas showed high incongruity rate.
2. As a result of factorial inspection, it was found that total colony count in inland areas, coastal areas showed 103.5CFU/ml, 119.7CFU/ml. As regards Chloride, inland areas, coastal areas showed 7.6mg/ℓ, 21.7mg/ℓ.
3. As a result of local factorial inspection, it was found that the nitrate-nitrogen content counted up to 0 to 1mg/ℓ in 47.9% in inland areas, 49.7% in costal areas of sections, and in other 1.8%, 2.4%, it exceeded 10mg/ℓ. As regards chloride in coastal areas, water quality standards for chloride 250mg / ℓ exceeds the 1.4% higher then in inland areas.
4. Hardness in inland areas was closely correlated with total solids (r=0.910), sulfate ion (r=0.819). Also, total solids and boron (r=0.600) showed high correlativities. On the one hand hardness in coastal areas was closely correlated with total solids (r=0.919), chloride (r=0.829). Also sulfate ion was closely correlated with hardness (r=0.599), fluoride (r=0.224). turbidity and aluminum (r=0.635) showed high correlativities.
6. Currently being used underground waters have quite a many problems. As an example insufficiency facility management, lack of public awareness about groundwater, degradation of underground water level, ongoing water pollution. on the one hand underground water in costal areas should be careful of Chloride, turbidity, hardness, total solide when using. Also, underground water in inland areas should be careful of fluoride, sulfate ion, turbidity, aluminum when using. finally, Both regions should be aware of microbial contamination.