960141_Compliance_20210603 (3)

Sludge Survey Evaluation Form
Today's Date
06032021
Facility #
Owner:
Lagoon ID
960141
Archer Farms
3
Sludge Survey Received:
Sludge Survey Performed:
6/2/2021
12/12/2020
Sludge Depth (Row 0): (ft)
Existing Treatment Depth (Row P): (ft)
,tart Date:
2.9
4.90
01 /01 /91
Facility age at time of survey:(yr)
Average Sludge Accumulation (ft/yr):
30
0.10
Requested Extension: (yr)
Requested Due Date
3
2024
Sludge Accumulation during extension peric
Treatment Depth Available after Extension:
Sludge level OK?
0.29
4.61
YES
Ratio Estimates Based on Depth
Ratio of Sludge layer to total trmt depth
Ratio of Sludge depth OK?
EXISTING
EXEMPTION
0.37
0.41
NO
Average Sludge layer thickness
Depth of the lagoon from top of bank to loot
Slope=Horizontal/vertical side slope
Length at the top of inside bank (L)
Width at the top inside slope ;W)
Thickness of existing liquid treatment zone
EXISTING
EXEMPTION
2.9
3.19
10.1
3
375
175
4.61
10.1
3
375
175
4.90
Length at midpoint of sludge layer (Lm)=L-2
Width at midpoint of sludge layer (Wm)=W-
Volume of sludge (Vs)=Lm*Wm*T
Volume in gallons (Vsg)=Vs*7.481
Thickness of total treatment zone (Z)=T+Y
Length at midpoint of total treatment zone (L
Width at midpoint of total treatment zone (VV
Volume of total treatment zone (Vz)=Lz*Wz'
323.10
123.10
115343.47
862884.49
7.80
337.80
137.80
363080.95
323.97
123.97
128132.71
958432.68
7.80
337.80
137.80
363080.95
Ratio(R) of sludge layer volume to total ti
0.318
0.353
Sludge Volume Ratio OK?
Maximum extension until end of permit cycle
Next survey to be done: (calendar yr)
12/31/2024
Notification letter mailed:
6/4/2021