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New entry · Mon Nov 9, 2026
Results update as you type. Nothing is saved until you press Save.
Date
Total gallons to waste (all basins in service)
—
gal/day
AB2
In service
MLSS
(mg/L)
SSV30
(mL/L)
Desired SRT
(days)
Clarifier 1
RAS 1
(mg/L)
WAS 1
(mg/L)
DOB 1
(ft)
Yesterday's WAS 1
(MGD)
Clarifier 2
RAS 2
(mg/L)
WAS 2
(mg/L)
DOB 2
(ft)
Yesterday's WAS 2
(MGD)
SRT
target
—
—
days
One-system SRT
(basin counted once)
—
days
SVI
—
RAS needed
—
mg/L
Pounds of solids
MLSS (basin)
—
lbs
RAS 1 (blanket)
—
lbs
RAS 2 (blanket)
—
lbs
WAS 1
—
lbs/day
WAS 2
—
lbs/day
WAS 1 + 2 combined
—
lbs/day
Wasting
New WAS 1
—
MGD
Pump stroke timer 1
—
sec
New WAS 2
—
MGD
Pump stroke timer 2
—
sec
AB3
In service
MLSS
(mg/L)
last: 2530
SSV30
(mL/L)
last: 270
Desired SRT
(days)
Clarifier 3
RAS 3
(mg/L)
last: 8530
WAS 3
(mg/L)
last: 12060
DOB 3
(ft)
last: 0.5
Yesterday's WAS 3
(MGD)
recommended last time: 0.0181
SRT
target
—
—
days
SVI
—
RAS needed
—
mg/L
Pounds of solids
MLSS (basin)
—
lbs
RAS 3 (blanket)
—
lbs
WAS 3
—
lbs/day
Wasting
New WAS 3
—
MGD
Pump stroke timer 3
—
sec
AB4
In service
MLSS
(mg/L)
last: 2180
SSV30
(mL/L)
last: 410
Desired SRT
(days)
Clarifier 4
RAS 4
(mg/L)
last: 5700
WAS 4
(mg/L)
last: 14260
DOB 4
(ft)
last: 3.9
Yesterday's WAS 4
(MGD)
recommended last time: 0.0154
SRT
target
—
—
days
SVI
—
RAS needed
—
mg/L
Pounds of solids
MLSS (basin)
—
lbs
RAS 4 (blanket)
—
lbs
WAS 4
—
lbs/day
Wasting
New WAS 4
—
MGD
Pump stroke timer 4
—
sec
Notes
— what you decided and why, anything unusual
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