My iron content in the pond water this time last year was 1.82ppm and is considered high by the LSU Agg dept. It does not seem to effect the fish or I don't see any effect it might have. I know of a few areas across E. Texas where water wells have some natural gas and the gas is separated from the water and provides some energy in the rural homes. Some can feed a fire at the water facet when lit. Natural gas has no smell unless it is hydrogen sulfide which does have that rotten egg smell and sometimes there will be some sulfur there also. So if the water has a real bad smell I would think it would be from some small amount hydrogen sulfide gas. I would suggest to Rick D. to send a water sample to TA&M for testing, just so you know what's in your water.
