{
    "document_id": 11809,
    "page": 158,
    "width_pt": 612,
    "height_pt": 792,
    "rotation": 0,
    "pipeline_version": "paddleocr-vl-1.6+paul-48",
    "engine": "paddleocr_vl",
    "source_run_id": 11920,
    "item_count": 6,
    "counts_by_type": {
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        "footer": 1,
        "header": 1,
        "text": 2,
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    "items": [
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            "id": "p158.1",
            "order": 1,
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            "bbox": {
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            "text": "OCSCD 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 21",
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            "text": "Pond 9P: SSIB #3 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\n16 Rows x 28.0\" Wide + 13.4\" Spacing x 15 + 10.0\" Side Stone x 2 = 55.75' Base Width\n4.0\" Stone Base + 28.0\" Chamber Height + 4.0\" Stone Cover = 3.00' Field Height\n48 Chambers x 62.0 cf + 54.08' Header x 3.10 sf x 2 = 3,311.3 cf Chamber Storage\n48 Chambers x 78.4 cf + 54.08' Header x 3.92 sf x 2 = 4,186.8 cf Displacement\n11,094.6 cf Field - 4,186.8 cf Chambers = 6,907.8 cf Stone x 40.0% Voids = 2,763.1 cf Stone Storage\nChamber Storage + Stone Storage = 6,074.4 cf = 0.139 af\nOverall Storage Efficiency = 54.8%\nOverall System Size = 66.33' x 55.75' x 3.00'",
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            "text": "48 Chambers\n410.9 cy Field\n255.8 cy Stone"
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            "text": "101010",
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