To avoid the possibility of such an ineffective situation, we provide a Rough Order-of-Magnitude (ROM) Estimate of costs and time when Requirements are not specified in the early stages of the project. The ROM Estimate is based on Vision document that includes a list of Features. Parameter.
Continued on next page. If your water smells like rotten eggs, it may. be contaminated with hydrogen sulfide (H 2S). Though H 2 S contamination at the concentrations. found in domestic drinking water supplies usually. does not pose a health risk, it is still a nuisance. and gives water a rotten egg smell and taste.
Sometimes the rotten egg odor is created by sulfur bacteria that use the dissolved sulfate as an energy (food) source. The bacteria chemically change the sulfate to hydrogen sulfide gas. The bacteria prefer the hot water side of the household plumbing system but may be found in the cold water pipes too.