| Summary for Pond 2P: Subsurface Infiltration Basin 1 |
| Inflow Area = 73,567 sf, 27.76% Impervious, Inflow Depth = 1.84" for 10 YR-F event |
| Inflow = 0.65 cfs @ 12.09 hrs, Volume= 11,301 cf |
| Outflow = 0.57 cfs @ 12.13 hrs, Volume= 11,301 cf, Atten= 12%, Lag= 2.4 min |
| Discarded = 0.57 cfs @ 12.13 hrs, Volume= 11,301 cf |
| Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf |
| Routed to Link 32L : POA1 |
| Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs |
| Peak Elev= 87.03' @ 12.10 hrs Surf.Area= 2,475 sf Storage= 31 cf |
| Plug-Flow detention time= 0.3 min calculated for 11,301 cf (100% of inflow) |
| Center-of-Mass det. time= 0.3 min ( 1,011.5 - 1,011.2 ) |
| Volume | Invert | Avail.Storage | Storage Description |
|---|
| #1A | 87.00' | 4,349 cf | 27.50'W x 90.00'L x 6.00'H Field A |
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| #2A | 87.50' | 3,188 cf | 14,850 cf Overall - 3,979 cf Embedded = 10,871 cf x 40.0% Voids ADS N-12 36" x 20 Inside #1 Inside= 36.1"W x 36.1"H => 7.10 sf x 20.00'L = 142.0 cf Outside= 42.0"W x 42.0"H => 8.86 sf x 20.00'L = 177.2 cf 20 Chambers in 5 Rows 24.50' Header x 7.10 sf x 2 = 347.9 cf Inside |
|---|
| 7,536 cf Total Available Storage |
| Storage Group A created with Chamber Wizard |
| Device | Routing | Invert | Outlet Devices |
|---|
| #1 | Primary | 92.59' | 48.0" x 48.0" Horiz. Grate C = 0.600 Limited to weir flow at low heads |
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| #2 | Device 1 | 88.00' | 12.0" Round Culvert L = 119.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 88.00' / 86.00' S = 0.0168 /' Cc= 0.900 n = 0.012 Concrete pipe, finished, Flow Area= 0.79 sf |
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| #3 | Discarded | 87.00' | 10.000 in/hr Exfiltration over Surface area Phase-In= 0.01' |
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| Discarded OutFlow Max=0.57 cfs @ 12.13 hrs HW=87.02' (Free Discharge) |
| 3=Exfiltration (Exfiltration Controls 0.57 cfs) |
| Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=87.00' TW=0.00' (Dynamic Tailwater) |
| 1=Grate ( Controls 0.00 cfs) |
| 2=Culvert ( Controls 0.00 cfs) |
| Pond 2P: Subsurface Infiltration Basin 1 |