4.4. SR 03-20-2017 - Laserfiche WebLink

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Wheatland, IL, South Bend, IN, East Peoria Sanitary District, and Manitowoc, WI, however, the percentage of leachate at these larger facilities was significantly less than the proposed application at Elk River. Glenbard operates a 16.0 MGD pure oxygen facility, South Bend and East Peroia are activated sludge facilities with chlorine disinfection and capacities of 48 MGD and 37 MGD, respectively. Manitowoc has a 15.5 MG trickling filter process. As indicated, only two of the facilities were identified with a similar UV disinfection process and no facility reported operation with leachate contributions to the percent contribution proposed at the Elk River facility. Table 7 - Summary of Municipal WWTF Receiving Leachate from WM Landfills Parameter Elk River, Fergus Falls, Watertown, Fort Atkinson, Port Washington, MN MN WI WI WI Design Flow 4.54 5.20 2.70 3.10 (MGD) Current Average 1.30 1.80 2.5-3.0 1.7-2.0 1.22 Flow (MGD) Typical Leachate 100,000-200,000 Summer: Flow (gpd) 35,000 12,000 gallon/month 5,700 gpd 6,000-12000 gpd gallons/day gallons/day 3,500-6,500 Winter: gallon/day much lower Percent Leachate 2.7 0.67 0.14-0.21 0.34 0.50-1.00 Landfill Type Municipal Solid WM Gwinner, ND WM Deer Track Park Waste, Otter Tail Power Ash, M Municipal Solid WM Deer Track Park Construction & Fergus Falls Waste 1-2 trucks per day Demolition Municipal Treatment Activated Activated Sludge Activated Sludge Activated Sludge Activated Sludge Sludge Bio -P Chem -P Bio -P Chem -P Disinfection UV Chlorine UV Chlorine UV Biosolids Anaerobic Aerobic Digestion Anaerobic Liquid Land Centrifuge Thicken Thicken Applied Land Applied Land Applied Land Applied Leachate Color observed. Indicates that color No significant color Color has not been noted. No significant color. Slight Appearance and COD = 5,000- diminished through impact. BOD=240 mg/L hint of color. other 15,000 mg/L the activated sludge COD = not avail. TSS=95 mg/L BOD = not available Characteristics TKN = 1,100- treatment process NH4 = 1,300-1,400 TKN=1,440 mg/L NH4 = 1,400 mg/L 1,200 mg/L mg/L P=8 mg/L P = 9-10 mg/L COD:CBOD5 not known Other Comments Slow pumped Slow feed to the Truck to facility 2- Truck delivery and slow Closed landfill delivery to WWTF. 3x/week and bleed in discharge to the WWTF. Truck delivery 1-2 trucks preliminary from a centrate tank. Plant struggled with 30,000 per day to remove waste treatment Centrate tank gpd due to high N load. receiving station for receives a black blending. buildup, although the Odors have been noted. color of the centrate No effluent quality issues. and leachate does not have a significant color. Rob Skidness / Matt Kris Gauger Erin Sweeney Dan Buehler 218-739-4691 920-262-4085 esweeney@fortatkinsonwi.gov 262-284-5051 City of Elk River, Minnesota —121.109643 Page 18 Elk River/Waste Management Leachate Study Prepared by Bolton & Menk, Inc.