- Alder Creek had a Peak Day production of 1.086 MG on December 23, 2022.
- Alder Creek water plant production net of backwash water used was 19.418 MG
- Brownell Springs production was a total of 6.30 MG and Peak Day production was on December 17th with a total of 208,740 gallons.
- Portland Water Bureau source production was a total of 3,639,668 gallons with a Peak Day production of 506,083 gallons on December 20, 2022.
- We recorded a total of 10.38 inches of rainfall at the water plant with peak rainfall on December 26th with a total of 1.21 inches.
EQUIPMENT ISSUES:
* High Turbidity Events –
12/01 – Rains (1.45 & 0.85)
12/20 – Rains (0.96)
12/26 – Rains (1.21)
12/27 – Rains (1.13)
*Filter 1 & 2 rewiring first week of December.
* December 22nd & 23rd (Freezing Rain – Event Power Outage)
- A total of 60.43 MG of sewage was treated in the month of December
- On December 27th the Peak day flow was 3.55 MG.
0.16 inches of rainfall was recorded the day before and 1.21 inches the day of.
- Monthly rainfall recorded at the plant was 8.30 inches with a peak of 1.35 inches on Christmas Day (December 25th)
- 768,140 gallons of sludge were dewatered, processed and landfilled during November.
- Monthly Average Effluent- BOD: 3.38 & TSS: 3.88
EQUIPMENT ISSUES:
1. RAS 1 Down, nut jammed in impeller and damaged coupling (December 11th)
2. PLC rewired at WWTP (Week of December 12th)
3. New Caustic pump added at headworks (December 15th)
4. WAS 2 communication issues. 15 Strokes (December 19th)
5. UV/Bank 1A not turning on in Auto. Waste pump 1 malfunctioning through PLC…turning on and off rapidly (December 20th)
6. Cell 1 diffuser replacement for ASSAB (December 21st)
7. Ice Storm, Clarifier 1 tripped and Clarifier 2 caught up on scum beach (December 22nd)
8. Pipe break in solids building (December 26th)
9. Heavy Rains / High Winds & Power Outages cause multiple disruptions, Clarifier 1 EMC (December 27th)
10. Pipe break fixed (December 28th)
11. City removed rag islands from ASSB (December 29th)
NPDES PEREMIT EXCEEDANCES OR EXCURSIONS:
* EFF PH DAILIY VIOLATIONS *
12/09 – 5.92
12/10 – 5.85
12/11 – 5.90
12/25 – 5.97
12/26 – 5.86
12/29 – 5.79