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Morris Forman Wastewater
Treatment Plant Verbal Description Survey #17 - Post Zimpro shutdown The community odor survey was conducted on the afternoon of Wednesday, May 15, 2002. It was a mostly sunny day with winds at 2-5 mph generally out of the south southwest. The temperature was about 70°F. For the five (5) ambient sampling locations (#1-#5) in the neighborhoods north and northeast of the treatment plant, along the Dumesnil St. corridor, the odor intensities were very faint and the hydrogen sulfide (H2S) concentrations ranged from 6-10 parts per billion (ppb). A very faint sludge odor was detected at station #2. Non-detectable to very faint odors were detected at the three (3) sampling stations (#6-#8) in the neighborhoods east and southeast of the plant. There were no MFWTP or industrial odors noticeable at these stations today. H2S levels were 7-10 ppb at these stations. For the three (3) sampling stations (#9-#11) located south and southwest of the treatment plant in the more industrial areas of the City, the industrial chemical odor level was faint at station #10 and very faint at station #11. The H2S concentrations were 6-7 ppb. At the MFWTP, there were steady winds at about 3 mph generally out of the south. The odor intensity at the seven (7) sampling stations around the plant ranged from faint to noticeable. H2S concentrations at these stations ranged from 6-36 ppb with the highest readings measured at station #17 where the average H2S was about 24 ppb. Both biotowers were in service and both scrubbers were in operation. The new stationary incinerator (PTO) appeared to be operating normally. Zimpro was out of service. Two dryer trains and RTO's were operating at the time of the survey. The temporary covers over the aerated primary influent channel were being installed today and scheduled for completion on May 16, 2002. Odor surveys will be conducted an average of once every two weeks during this project and will be conducted through August, 2002. |
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Last Updated: July 02, 2002
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