srb solution dosage ppm solution strength 0 20 50 100 10 naclo 3 25 nano 3 75 24 80 80 0 33 36 ca no 3 2 75 24 70 80 45 10 naclo 3 19 ca no 3 2 75 24 80 70 4 39 mg no 3 2 75 24 70 70 70 10 naclo 3 29 mg no 3 2 75 24 60 70 0 table iii demonstrates that the synergy between chlorate and nitrate is not dependant on the metal portion of the nitrate compound chlorate behaved synergistically with all metal nitrate compounds evaluated table iv shows both aerobic and anaerobic growth evaluations for treated and non treated bottle tests for each bottle test the treated bottle that showed the least amount of s 2 u2212 generated was evaluated to determine if the effect was due to poor bacterial growth non treated bottles were measured for comparison aerobic bacterial growth was measured using serial dilutions and plated on petrifilm u2122 aerobic count plates anaerobic srb growth was measured using mpn serial dilutions into sterile anoxic media containing an iron nail to precipitate iron sulfide in all evaluations no evidence of aerobic or anaerobic bacterial growth inhibition occurred along with inhibition of sulfide as compared to the controls in a preferred embodiment the chlorate compound is a metal chlorate naclo 3 particularly preferred while the nitrate compound is a metal nitrate nano 3 particularly preferred while the present invention has been described with respect to particular embodiment thereof it is apparent that numerous other forms and modifications of the invention will be obvious to those skilled in the art the appended claims and this invention generally should be construed to cover all such obvious forms and modifications.