08-19-2019 Septic Design - Laserfiche WebLink

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UNIVERSITY Septic System Management Plan OF MINNESOTA far Below Grade systems Professional Management Tasks These are the operation and maintenance activities that a long-term performance o our !uld refer to t finer performs to help ensure fY system. ercomponens should refer m the or Manua[ for derailed checklists far tanks, pumps, alarms and other components. Call 80 0.3 22-8 642 for more details. • Written record provided to homeowner after each visit. Piumbing/$oume of Wastewater • Review the Water Use Appliance Chart on Page 5 with homeowner. Discuss any changes in water use and the impact those changes may have on the septic system. • Review water usage rates (if available) with homeowner. Septic Tank/Pump Tanks • Manhole lid. A riser is recommended if the lid is not accessible from the ground surface insulate the tiler cover for frost protection • Liquid level. Check to make sure the tank is not leaking, The liquid level should be level with the bottom of the outlet pipe. (If the water level is below the bottom the e outlet pipe, the tank may not be watertight. If the water level is higher than the bottom of the outlet pipe of the tank, the effluent screen may need cleaning, or there may be ponding in the drainfield.) • Inspecdon pipes. Replace damaged caps • Baffles. Check to make sure they are th place and attached, and that inlet/outlet baffles are clear of buildup or obstructions. • Effluent screen. Check to make sure it is In place; clean per manufacturer recommendation. Recommend retrofitted installation if one is not present. • Alarm. Verify that the alarm works. • Scum and sludge. Measure scum and sludge in each compartment of each septic and pump tank, pump if needed. Pump • Pump and controls. Check to make sure the pump and controls we operating correctly. • Pump vault. Check to make sore it is in place; clean per manufacturer recommendations. • Alarm. Verify that the alarm works. • Dramback Check to make sure it is operating properly. • Event counter or run time. Check to see if there is an event counter or ran time log for the pump. If there is one, calculate the water usage rate and compare to the anticipated average daily flow listed on Page 2. Soil Treatment Area • Inspection pipes. Check to make sure they are properly capped. Replace caps that we damaged. • Surfacing of effluent. Check for surfaced effluent or other signs of problems. • Gravity trenches and beds. Check the number of gravity trenches with ponded effluent. Identify the percentage of the system in use. Determine if action is needed. • Pressure trenches and beds - Lateral flushing. Check lateral distribution; if ckeanouts exist, flush and clean as needed. All other components — impact as listed here: -4-