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Parameter Limit Maximum Allowable Headworks Loading (MAHL) lbs/day Limiting Factor
Arsenic 0.31 mg/l 5.5244 Process Inhibitions
Cadmium 0.15 mg/l 2.5803 Biosolids Quality
Chromium 4.91 mg/l 108.6457 Process Inhibitions
Copper 3.19 mg/l 4.0969 Receiving Stream Quality
Cyanide 1.84 mg/l 32.3675 Process Inhibitions
Lead 0.54 mg/l 9.9646 Receiving Stream Quality
Mercury 0.006 mg/l 0.2052 Receiving Stream Quality
Molybdenum 4.32 mg/l 8.1744 Biosolids Quality
Nickel 3.14 mg/l 22.6587 Process Inhibitions
Selenium 0.61 mg/l 12.5761 Biosolids Quality
Silver 0.25 mg/l 0.6926 Receiving Stream Quality
Zinc 3.36 mg/l 97.1026 Process Inhibitions
pH 6.5 - 10.0 N/A Process Inhibitions

  Approved by Salem City Council on July 2, 2007

  City of Salem pH Enforcement Policy

   
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