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    "document_id": 11809,
    "page": 56,
    "width_pt": 612,
    "height_pt": 792,
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    "pipeline_version": "paddleocr-vl-1.6+paul-48",
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    "source_run_id": 11920,
    "item_count": 6,
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        "footer": 1,
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            "text": "POST DEV NOAA 24-hr D 2 YEAR Rainfall=3.42\"\nPrepared by Professional Design Services Printed 12/31/2025\nHydroCAD® 10.20-6a s/n 02223 © 2024 HydroCAD Software Solutions LLC Page 20",
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            "text": "Pond 8P: SSIB #2 UNDERGROUND - Chamber Wizard Field A",
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            "text": "Chamber Model = ADS N-12 24\" (ADS N-12® Pipe)\nInside= 23.8\"W x 23.8\"H => 3.10 sf x 20.00'L = 62.0 cf\nOutside= 28.0\"W x 28.0\"H => 3.92 sf x 20.00'L = 78.4 cf\n28.0\" Wide + 13.4\" Spacing = 41.4\" C-C Row Spacing\n3 Chambers/Row x 20.00' Long +2.33' Header x 2 = 64.67' Row Length +10.0\" End Stone x 2 = 66.33' Base Length\n12 Rows x 28.0\" Wide + 13.4\" Spacing x 11 + 10.0\" Side Stone x 2 = 41.95' Base Width\n4.0\" Stone Base + 28.0\" Chamber Height + 4.0\" Stone Cover = 3.00' Field Height\n36 Chambers x 62.0 cf + 40.28' Header x 3.10 sf x 2 = 2,481.8 cf Chamber Storage\n36 Chambers x 78.4 cf + 40.28' Header x 3.92 sf x 2 = 3,137.9 cf Displacement\n8,348.3 cf Field - 3,137.9 cf Chambers = 5,210.4 cf Stone x 40.0% Voids = 2,084.2 cf Stone Storage\nChamber Storage + Stone Storage = 4,565.9 cf = 0.105 af\nOverall Storage Efficiency = 54.7%\nOverall System Size = 66.33' x 41.95' x 3.00'",
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            "text": "36 Chambers\n309.2 cy Field\n193.0 cy Stone"
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