{ "format": "mistral-image-index-1", "document_id": "2026_BMP_9_8", "path_base": "knowledge-base root", "assets": [ { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0001-img-01.jpg", "sha256": "a79ce4a5e8c39315b9baa80bb9054155c5db3d4d84a7f55192e8118c1e3051ec", "bytes": 8621, "pdf_page": 1, "ordinal": 1, "ocr_image_id": "img-0.jpeg", "local_path": "images/page-0001-img-01.jpg", "bbox_pixels": [ 193, 290, 683, 618 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "# 9.8 SMALL-SCALE INFILTRATION BASINS\n\n[OCR image]\n\nSmall-scale infiltration basins are stormwater management systems constructed with highly permeable components designed to both maximize the removal of pollutants from stormwater and to promote groundwater recharge. Pollutants are treated through settling, filtration of the runoff through and biological and chemical activity within, the components. The total suspended solids (TSS) removal rate is 80%.", "asset_id": "2026_BMP_9_8__image__0001__01__2d269054", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0001-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0001__001", "2026_BMP_9_8__0001__002", "2026_BMP_9_8__0001__003", "2026_BMP_9_8__0001__004", "2026_BMP_9_8__0001__005", "2026_BMP_9_8__0001__006", "2026_BMP_9_8__0001__007", "2026_BMP_9_8__0001__008", "2026_BMP_9_8__0001__009", "2026_BMP_9_8__0001__010", "2026_BMP_9_8__0001__011", "2026_BMP_9_8__table__00001" ], "direct_record_ids": [ "2026_BMP_9_8__0001__001", "2026_BMP_9_8__0001__002", "2026_BMP_9_8__0001__003", "2026_BMP_9_8__0001__004", "2026_BMP_9_8__0001__005", "2026_BMP_9_8__0001__006", "2026_BMP_9_8__0001__007", "2026_BMP_9_8__0001__008", "2026_BMP_9_8__0001__009", "2026_BMP_9_8__0001__010", "2026_BMP_9_8__0001__011", "2026_BMP_9_8__table__00001" ], "table_record_ids": [ "2026_BMP_9_8__table__00001" ], "display_asset_id": "2026_BMP_9_8__image__0001__01__2d269054" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0002-img-01.jpg", "sha256": "c4ee2ebfa7a197fcea62aeb50a075a4a13449c2c3850b2ea94372080efe51947", "bytes": 3432, "pdf_page": 2, "ordinal": 1, "ocr_image_id": "img-1.jpeg", "local_path": "images/page-0002-img-01.jpg", "bbox_pixels": [ 193, 1630, 350, 1922 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "ments/.\n\nFinally, a small-scale infiltration basin must have a maintenance plan and must be reflected in a deed notice recorded in the county clerk's office to prevent alteration or removal.\n\n# Applications\n\n[OCR image]\n\nPursuant to N.J.A.C. 7:8-5.2(a)(2), the minimum design and performance standards for groundwater recharge, stormwater runoff quality and stormwater runoff quantity at N.J.A.C. 7:8-5.4, 5.5 and 5.6 shall be met by incorporating green infrastructure in accordance with N.J.A.C. 7:8-5.3.\n\nSmall-scale infiltration basins may be designed to reduce peak runoff rates when designed as an on-line system in combi", "asset_id": "2026_BMP_9_8__image__0002__01__a6d860d2", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0002-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0002__001" ], "direct_record_ids": [ "2026_BMP_9_8__0002__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0002__01__a6d860d2" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0005-img-01.jpg", "sha256": "bf024d7d205970020f7039d2cebed1080c1fa6c58357478ce603892cbeb58589", "bytes": 79398, "pdf_page": 5, "ordinal": 1, "ocr_image_id": "img-2.jpeg", "local_path": "images/page-0005-img-01.jpg", "bbox_pixels": [ 350, 1122, 1351, 1696 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "ly affect the hydraulic performance of the outlet pipe or structure;\n☐ Constructed of rigid, durable and corrosion-resistant material; and\n☐ Designed to withstand a perpendicular live loading of 300 lbs/sf.\n\n[OCR image]\n\n- An overflow grate is designed to prevent obstruction of the overflow structure. If an outlet structure has an overflow grate, the grate must comply with the following requirements:\n\n☐ The overflow grate must be secured to the outlet structure but removable for emergencies and maintenance;\n☐ The overflow grate spacing must be no greater than 2 inches across the smallest dimension; and", "asset_id": "2026_BMP_9_8__image__0005__01__b741cf34", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0005-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0005__001", "2026_BMP_9_8__0005__002", "2026_BMP_9_8__0005__003", "2026_BMP_9_8__0005__004" ], "direct_record_ids": [ "2026_BMP_9_8__0005__001", "2026_BMP_9_8__0005__002", "2026_BMP_9_8__0005__003", "2026_BMP_9_8__0005__004" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0005__01__b741cf34" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0006-img-01.jpg", "sha256": "32f3be303a4bb1dfb3be7319941ebcbd5ed01bdf95935bfda5f03024f1aebc43", "bytes": 80429, "pdf_page": 6, "ordinal": 1, "ocr_image_id": "img-3.jpeg", "local_path": "images/page-0006-img-01.jpg", "bbox_pixels": [ 343, 451, 1351, 1029 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "and cement, or similar grouting material, such that water will not pond in the outlet structure. This material must be sloped towards the discharge pipe to facilitate drainage, as shown in the detail below.\n\n[OCR image]\n\n- Any flow control device, such as an orifice, weir, grate or perforated pipe, at the outlet of the stormwater management measures shall be designed to prevent the clogging of the flow control device while achieving the design and performance standards at N.J.A.C. 7:8-5.4, 5.5 and 5.6.\n- Blind connections to down-gradient facilities are prohibited. Any connection to down-gradient stormwater management", "asset_id": "2026_BMP_9_8__image__0006__01__b9b52cf9", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0006-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0006__001", "2026_BMP_9_8__0006__002", "2026_BMP_9_8__0006__003", "2026_BMP_9_8__0006__004", "2026_BMP_9_8__0006__005" ], "direct_record_ids": [ "2026_BMP_9_8__0006__001", "2026_BMP_9_8__0006__002", "2026_BMP_9_8__0006__003", "2026_BMP_9_8__0006__004", "2026_BMP_9_8__0006__005" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0006__01__b9b52cf9" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0008-img-01.jpg", "sha256": "d30012dd85b2b15ee935f4ea3648a9ae94949989456105055c5b50b9cdb428a9", "bytes": 75505, "pdf_page": 8, "ordinal": 1, "ocr_image_id": "img-4.jpeg", "local_path": "images/page-0008-img-01.jpg", "bbox_pixels": [ 297, 1216, 1300, 1812 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "ations of the 2-, 10- and 100-year storm events. To prevent the accumulation of stormwater runoff from exceeding the 2 foot maximum depth limit, an orifice is set at the water surface elevation of the WQDS.\n\n[OCR image]", "asset_id": "2026_BMP_9_8__image__0008__01__fbc6fcd2", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0008-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0008__001", "2026_BMP_9_8__0008__002", "2026_BMP_9_8__0008__003", "2026_BMP_9_8__0008__004" ], "direct_record_ids": [ "2026_BMP_9_8__0008__001", "2026_BMP_9_8__0008__002", "2026_BMP_9_8__0008__003", "2026_BMP_9_8__0008__004" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0008__01__fbc6fcd2" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0009-img-01.jpg", "sha256": "15269f08e4e14a20b2a1339a818d2c6bdcd7cab1ee1a49728f26ca05a27b3497", "bytes": 61807, "pdf_page": 9, "ordinal": 1, "ocr_image_id": "img-5.jpeg", "local_path": "images/page-0009-img-01.jpg", "bbox_pixels": [ 297, 235, 1300, 726 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "[OCR image]\n\n# Types of Small-Scale Infiltration Basins\n\nThere are two types of small-scale infiltration basins:\n\n1. Small-Scale Surface Infiltration Basins\n2. Small-Scale Subsurface Infiltration Basins\n\n# Individual Types of Small-Scale Infiltration Basins\n\nThe following section provides detailed design criteria for each type of small-scale infiltration basin. The illustrations depict possible configurations and f", "asset_id": "2026_BMP_9_8__image__0009__01__656213ef", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0009-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0009__001", "2026_BMP_9_8__0009__002", "2026_BMP_9_8__0009__003", "2026_BMP_9_8__0009__004" ], "direct_record_ids": [ "2026_BMP_9_8__0009__001", "2026_BMP_9_8__0009__002", "2026_BMP_9_8__0009__003", "2026_BMP_9_8__0009__004" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0009__01__656213ef" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0011-img-01.jpg", "sha256": "4d80822b6d9c4f56999810955492251f8caded74c9a630f55c0d7395da1e19d8", "bytes": 61287, "pdf_page": 11, "ordinal": 1, "ocr_image_id": "img-6.jpeg", "local_path": "images/page-0011-img-01.jpg", "bbox_pixels": [ 294, 666, 1300, 1287 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "ltration basin in both plan and profile view. These illustrations show possible configurations and flow paths and are not intended to limit the design.\n\n## Small-Scale Surface Infiltration Basin – Plan View\n\n[OCR image]\n\n## Small-Scale Surface Infiltration Basin – Profile View\n\n[OCR image]", "asset_id": "2026_BMP_9_8__image__0011__01__2c7f985b", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0011-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0011__001" ], "direct_record_ids": [ "2026_BMP_9_8__0011__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0011__01__2c7f985b" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0011-img-02.jpg", "sha256": "577fa6afd4b7ac3f3997621222cfb5b8794637b5c7be586d9cfc2955c9953a00", "bytes": 47992, "pdf_page": 11, "ordinal": 2, "ocr_image_id": "img-7.jpeg", "local_path": "images/page-0011-img-02.jpg", "bbox_pixels": [ 294, 1361, 1300, 1876 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "gurations and flow paths and are not intended to limit the design.\n\n## Small-Scale Surface Infiltration Basin – Plan View\n\n[OCR image]\n\n## Small-Scale Surface Infiltration Basin – Profile View\n\n[OCR image]", "asset_id": "2026_BMP_9_8__image__0011__02__ba643297", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0011-img-02.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0011__001" ], "direct_record_ids": [ "2026_BMP_9_8__0011__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0011__02__ba643297" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0012-img-01.jpg", "sha256": "30048f4f8788dd9a7ec970ecce3b4b0cefb12565f09f0a3f257e70b9b74b0640", "bytes": 100707, "pdf_page": 12, "ordinal": 1, "ocr_image_id": "img-8.jpeg", "local_path": "images/page-0012-img-01.jpg", "bbox_pixels": [ 294, 525, 1300, 1342 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "s depicted in the following illustration as an example, but it is not intended to limit the design configuration. Design criteria specific to this type of small-scale infiltration basin immediately follows.\n\n[OCR image]\n\n## Small-Scale Subsurface Infiltration Basin – Profile View\n\n### Pretreatment for Small-Scale Subsurface Infiltration Basins\n\n- Pretreatment is required on all small-scale subsurface infiltration basins.\n- Roof runoff that directly discharges into the small-scale subsurface infiltration basin can be pretreated by leaf screens, first flush diverters or roof washers. For details of these pretreatment mea", "asset_id": "2026_BMP_9_8__image__0012__01__0bc8ce08", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0012-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0012__001" ], "direct_record_ids": [ "2026_BMP_9_8__0012__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0012__01__0bc8ce08" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0016-img-01.jpg", "sha256": "fb9b58aefaf8d6c4c8051b10cfe5961cdc276dc65e22f2173fe5c5fe921ef0eb", "bytes": 48817, "pdf_page": 16, "ordinal": 1, "ocr_image_id": "img-9.jpeg", "local_path": "images/page-0016-img-01.jpg", "bbox_pixels": [ 294, 237, 1305, 737 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "Example 1 - Geometry\n\n[OCR image]\n\nSummary Report:\n\n| Inflow Area = 43,560 sf,100.00% Impervious, Inflow Depth = 1.03\" | | | |\n| --- | --- | --- | --- |\n| Inflow = 2.66 cfs @ 1.13 hrs, Volume= 3,755 cf | | | |\n| Outflow = 0.19 cfs @ 1.89 hrs, Volume= 3,755 cf, Atten= 93%, Lag= 45.3 min | | | |\n| Discarded = 0.19 cfs @ 1.89 hrs, Volume= 3,755 cf | | | |\n| Routing by Stor-Ind method, Time Span= 0.00-48.00", "asset_id": "2026_BMP_9_8__image__0016__01__94b9e722", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0016-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0016__001", "2026_BMP_9_8__table__00005" ], "direct_record_ids": [ "2026_BMP_9_8__0016__001", "2026_BMP_9_8__table__00005" ], "table_record_ids": [ "2026_BMP_9_8__table__00005" ], "display_asset_id": "2026_BMP_9_8__image__0016__01__94b9e722" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0018-img-01.jpg", "sha256": "ea42ce47ab62d2bd32d95f2fe6801a6419196e8f07b0acb9499ef09bfe1ce834", "bytes": 105576, "pdf_page": 18, "ordinal": 1, "ocr_image_id": "img-10.jpeg", "local_path": "images/page-0018-img-01.jpg", "bbox_pixels": [ 294, 457, 1400, 1586 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "MPs. For this example, it is assumed the design meets the necessary groundwater mound requirements.\n\nIllustrations for this example, exclusive of any refinements, are shown below and on the following page.\n\n[OCR image]", "asset_id": "2026_BMP_9_8__image__0018__01__b1518905", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0018-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0018__001" ], "direct_record_ids": [ "2026_BMP_9_8__0018__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0018__01__b1518905" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0019-img-01.jpg", "sha256": "eb251bb0185b023eaa010fdd454ad99280a8f6a42c57045b1775d544fa8a2bd1", "bytes": 56093, "pdf_page": 19, "ordinal": 1, "ocr_image_id": "img-11.jpeg", "local_path": "images/page-0019-img-01.jpg", "bbox_pixels": [ 297, 237, 1305, 770 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "[OCR image]\nExample 1 – Plan View\n\nExample 2: Using the following parameters, design a small-scale subsurface infiltration basin sized both for the WQDS and to provide groundwater recharge. Assume the site is not in an Urban Redevelopment Area. Assume pretreatment to provide 80% TSS removal is provided by an appropriate BMP or MTD.\n\nInflow Contributory Drainage Area = 1 ac\nExisting Conditions:\nCover = Office Build", "asset_id": "2026_BMP_9_8__image__0019__01__82a0902b", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0019-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0019__001", "2026_BMP_9_8__0019__002" ], "direct_record_ids": [ "2026_BMP_9_8__0019__001", "2026_BMP_9_8__0019__002" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_8__image__0019__01__82a0902b" }, { "source_pdf": "BMP_2026/2026_BMP_9_8_Small_Scale_Infiltration_Basins.pdf", "source_pdf_sha256": "6a2af5d9ed848e49bc3ab91eea243792f93a3cc35c1e3229ed94b7846f64913f", "source_manifest": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/manifest.json", "source_manifest_sha256": "0544014a8b59cc176d4e50c75852c9e160616534a335029a228ee79bdfaf2a89", "source_response": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/response.json", "source_response_sha256": "f5bfad3c9217b1b58cda9c6bab40d03da0d6313995ed0585eefce00907889425", "source_image": "BMP_2026/raw/2026_BMP_9_8_Small_Scale_Infiltration_Basins/pages/page-0023-img-01.jpg", "sha256": "f3b89b20a6b4cc97f632c3ddf4fd13ed8505f4bb160dd45f5bfa8756cb32cd9e", "bytes": 48826, "pdf_page": 23, "ordinal": 1, "ocr_image_id": "img-12.jpeg", "local_path": "images/page-0023-img-01.jpg", "bbox_pixels": [ 244, 1007, 958, 1694 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "of infiltration period) | | | | | | | | |\n| 16 | 9.15 | Δh(max) | | Maximum groundwater mounding (beneath center of basin at end of infiltration period) | | | | | | | | |\n\n[OCR image]\n\nThe maximum mounding height is 4.19 feet. In the Hantush Spreadsheet, the SHWT forms the x-axis. For this example, ground level is 10 ft above the SHWT, meaning, the top of the groundwater mounding will be 5.81 feet below the surface. As stated above, the surface of the basin sand layer is 2.99 ft below the adjacent ground surface. Therefore, the top of the groundwater mounding is 2.82 ft below the to", "asset_id": "2026_BMP_9_8__image__0023__01__ab0f9574", "document_id": "2026_BMP_9_8", "path": "BMP/2026/09.08 - Small-Scale Infiltration Basins/images/page-0023-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_8__0023__001", "2026_BMP_9_8__table__00011" ], "direct_record_ids": [ "2026_BMP_9_8__0023__001", "2026_BMP_9_8__table__00011" ], "table_record_ids": [ "2026_BMP_9_8__table__00011" ], "display_asset_id": "2026_BMP_9_8__image__0023__01__ab0f9574" } ] }