WATER – A total of 38,015,000 gallons of water were treated and delivered during June. 15,270,000 gallons from Alder Creek treatment plant, 7,950,000 gallons from Brownell Springs and 15,035,000 gallons purchased from City of Portland. Peak day production was 1.58 MGD on June 23rd. 6.80 inches of rainfall were recorded at the water treatment plant site during the month. The manufacturers’s field service technician visited the WTP on June 30th to review the existing filters and make recommendations for upgrades.

WASTEWATER – A total of 41,510,000 gallons of sewage were treated and re-used for irrigation. Maximum flow was 2.4 MGD on the 16th (rainfall was 0.35″ on the 15th and 0.51″ on the 16th). Monthly rainfall recorded at the plant was 4.69 inches. 167,180 gallons of sludge were dewatered and landfilled. Effluent BOD loading was 15.1 lbs/day BOD concentration was 2.0 mg/l Effluent TSS loading was 54.29 lbs/day TSS concentration was 7.0 mg/l. Even though effluent BOD and TSS limits do not apply when treated wastewater is reused for irrigation these results are shown to demonstrate the effectiveness of treatment. These results are well below ‘winter’ permit limits (125 lbs/day and 10 mg/l) and show the effectiveness of the rebuilt effluent filter system. Even with only one filter online we were able to exceed the permit standards despite the unusually wet June we had. The 2.4 MGD peak day referenced above was easily handled by the sole effluent filter in service. A field service engineer from the secondary clarifier manufacturer visited the WWTP on the 30th to review the condition of one of the clarifiers which had been drained for inspection. Murraysmith staff also visited the plant in June to help finalize the recommendations in the pre-design report. A scum pump was replaced the reclaimed water pump that was removed for service on May 12th was returned to service on June 15th. The second RAS pump was installed and placed into service. Both RAS pumps have been replaced with new units. Public Works staff replaced gaskets on air piping with high-temperature gaskets suited for air service.