820385_Extension_20240927

Sludge Survey Evaluation Form
Facility #
Owner:
Lagoon ID
Sludge Survey Received:
Sludge Survey Performed:
Sludge Depth (Row O): (ft)
Existing Treatment Depth (Row P): (ft)
Start Date:
Facility age at time of survey:(yr)
Average Sludge Accumulation (ft/yr):
Requested Extension: (yr)
Requested Due Date
Sludge Accumulation during extension period: (ft)
Treatment Depth Available after Extension: (ft)
Sludge level OK?
Ratio Estimates Based on Depth
Ratio of Sludge layer to total trmt depth
Ratio of Sludge depth OK?
Average Sludge layer thickness (T)
Depth of the lagoon from top of bank to bottom soil surface (D)
Slope=Horizontal/vertical side slope (S)
Length at the top of inside bank (L)
Width at the top inside slope (W)
Thickness of existing liquid treatment zone (Y)
Length at midpoint of sludge layer (Lm)=L-2S(D-(T/2))
Width at midpoint of sludge layer (Wm)=W-2S(D-(T/2))
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 (Lz)=L-2(S)(D-(Z/2))
Width at midpoint of total treatment zone (Wz)=W-2(S)(D-(Z/2))
Volume of total treatment zone (Vz)=Lz*Wz*Z
Ratio(R) of sludge layer volume to total trmt volume
Sludge Volume Ratio OK?
Maximum extension until end of permit cycle
Next survey to be done: (calendar yr)
Notification letter mailed:
Today's Date
82-385
Mill Run
3
9/24/2024
9/12/2023
2.3
4.4
1/1/1980
43.7260273972603
5.26002506265664E-02
5
2028
0.263001253132832
4.13699874686717
EXISTING
0.343283582089552
EXISTING
2.3
9.9
3
243
190.5
4.4
190.5
138
60464.7
452336.4207
6.7
203.7
151.2
206356.248
0.293011239475531
09/26/2024
YES
EXEMPTION
0.382537500467587
YES
EXEMPTION
2.56300125313283
9.9
3
243
190.5
4.13699874686717
191.289003759398
138.789003759398
68044.633970422
508973.862098757
6.7
203.7
151.2
206356.248
0.329743512153904
YES
12/31/2028