Analysis of ground water quality characteristics in golf course during the dry season

In the present project, the qualities of the ground water in the nearby of the golf course located in Dongshan district in Haikou used for nearly 18 years were analyzed using different methods including experimental method, comparative analysis and single factor pollution index. The results showed that the color degree, turbidity, residual chlorine, total phosphorus and concentration of heavy metals of the sampled water from golf course were higher than the corresponding index of farmland ditches water from same composition during dry season. The contents of phosphorus, mercury, chromium and COD(Chemical Oxygen Demand) of water from the lake in golf course exceeded the standards of the national ground water quality class Ⅲ. The turf and the internal artificial lake in golf course can effectively prevent infiltration of rainwater and irrigation water into the perimeter of the stadium. The concentrations of residual chlorine, nitrite nitrogen, ammonia nitrogen and total phosphorus in the water from reservoir on the west side of the stadium decreased in the following order: upstreammidstreamdownstream. Except with the mercury content in the water from the upstream of the reservoir, the heavy metal contents in the water from other research areas were higher than the background level. The concentrations of COD and total phosphorus in water from upstream, total phosphorus and lead in water from midstream and all indices in water from downstream met the standards of the national ground water quality class Ⅱ. The pesticide residue of inner and outer water of the stadium did not exceed the standard level.