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Cisterns can either be indoors or outdoors and above, at or even below grade. The reuse of collected stormwater runoff reduces the volume of stormwater runoff transported to downstream facilities. Take note that", "asset_id": "2026_BMP_9_1__image__0001__01__713b762e", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - Cisterns (Small-Scale GI)/images/page-0001-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0001__001", "2026_BMP_9_1__table__00001" ], "direct_record_ids": [ "2026_BMP_9_1__0001__001", "2026_BMP_9_1__table__00001" ], "table_record_ids": [ "2026_BMP_9_1__table__00001" ], "display_asset_id": "2026_BMP_9_1__image__0001__01__713b762e" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0002-img-01.jpg", "sha256": "d980de534bdb30bf9389e0791e9d4caa89958af4507cec1c4b786d3a5179a485", "bytes": 75196, "pdf_page": 2, "ordinal": 1, "ocr_image_id": "img-1.jpeg", "local_path": "images/page-0002-img-01.jpg", "bbox_pixels": [ 297, 193, 1108, 765 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "[OCR image]\n\n[OCR image]\n\n[OCR image]", "asset_id": "2026_BMP_9_1__image__0002__01__25d730fd", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - 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Cisterns (Small-Scale GI)/images/page-0002-img-03.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0002__001" ], "direct_record_ids": [ "2026_BMP_9_1__0002__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_1__image__0002__03__77b18229" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0003-img-01.jpg", "sha256": "b4de3d1054ce156cb4b44d1bc71e44d49ff37cd4f86b494add8ca99b6ac4aea3", "bytes": 3426, "pdf_page": 3, "ordinal": 1, "ocr_image_id": "img-4.jpeg", "local_path": "images/page-0003-img-01.jpg", "bbox_pixels": [ 185, 294, 338, 576 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "# 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\nCisterns may be designed to reduce the volume of stormwater discharged to downstream facilities and/or to reduce peak", "asset_id": "2026_BMP_9_1__image__0003__01__cd45d8e8", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - Cisterns (Small-Scale GI)/images/page-0003-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0003__001" ], "direct_record_ids": [ "2026_BMP_9_1__0003__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_1__image__0003__01__cd45d8e8" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0005-img-01.jpg", "sha256": "2e8aea8f989e8c4eedb41b9295ada110ce0429b74866efa7be10ce3b747841b1", "bytes": 77435, "pdf_page": 5, "ordinal": 1, "ocr_image_id": "img-5.jpeg", "local_path": "images/page-0005-img-01.jpg", "bbox_pixels": [ 397, 987, 1322, 1700 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "n the left. Leaf screens must be maintained regularly to prevent clogging, which could prevent flow into the cistern. Additionally, poorly maintained leaf screens may lead to the growth of harmful bacteria.\n\n[OCR image]\nExamples of Cistern Pretreatment Options\n\n- First Flush Diverters are devices that direct stormwater generated at the start of a precipitation event away from a cistern. This first flush of runoff tends to wash smaller contaminants that have built up on the rooftop surface into the cistern; these contaminants may include dust, pollen, other airborne pollutants and animal feces. First flush diverters may", "asset_id": "2026_BMP_9_1__image__0005__01__5af33600", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - Cisterns (Small-Scale GI)/images/page-0005-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0005__001" ], "direct_record_ids": [ "2026_BMP_9_1__0005__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_1__image__0005__01__5af33600" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0006-img-01.jpg", "sha256": "7deb069eb7ce134d3e1f96773ec6691b595e375a3804fff1ad55f1a9f545ed8b", "bytes": 59287, "pdf_page": 6, "ordinal": 1, "ocr_image_id": "img-6.jpeg", "local_path": "images/page-0006-img-01.jpg", "bbox_pixels": [ 397, 382, 1400, 1174 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "as shown on the following page. Regardless of the type selected, all first flush diverters must be emptied between storm events to ensure sufficient storage is available for the next storm event.\n\n[OCR image]\nSurface Cistern with First Flush Diverter Tank\n\n☐ Roof Washers are devices placed just before the inflow into the cistern. Roof washers consist of a storage device that allows for some settling, as well as fine screens over the outlet; these devices are intended to treat the fine particulates in runoff. Roof washers must be maintained on a regular basis to prevent clogging. An illustration of one type o", "asset_id": "2026_BMP_9_1__image__0006__01__b6feaff2", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - Cisterns (Small-Scale GI)/images/page-0006-img-01.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0006__001" ], "direct_record_ids": [ "2026_BMP_9_1__0006__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_1__image__0006__01__b6feaff2" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0006-img-02.jpg", "sha256": "df34e2a65480335fb3c12a1fbc784fba9979eaaca35bdb86f7b046f58e024e5c", "bytes": 39533, "pdf_page": 6, "ordinal": 2, "ocr_image_id": "img-7.jpeg", "local_path": "images/page-0006-img-02.jpg", "bbox_pixels": [ 936, 1201, 1397, 1914 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "these devices are intended to treat the fine particulates in runoff. Roof washers must be maintained on a regular basis to prevent clogging. An illustration of one type of roof washer is shown to the right.\n\n[OCR image]", "asset_id": "2026_BMP_9_1__image__0006__02__4cfd7841", "document_id": "2026_BMP_9_1", "path": "BMP/2026/09.01 - Cisterns (Small-Scale GI)/images/page-0006-img-02.jpg", "association": "exact_source_pdf_and_page", "record_ids": [ "2026_BMP_9_1__0006__001" ], "direct_record_ids": [ "2026_BMP_9_1__0006__001" ], "table_record_ids": [], "display_asset_id": "2026_BMP_9_1__image__0006__02__4cfd7841" }, { "source_pdf": "BMP_2026/2026_BMP_9_1_Cisterns.pdf", "source_pdf_sha256": "b18aaf75e3401c6de2962c5c7b58db2fa94fde3af1821bd1f347004521294fd8", "source_manifest": "BMP_2026/raw/2026_BMP_9_1_Cisterns/manifest.json", "source_manifest_sha256": "08870bb9dcf0df132f2dfae0540c3cdd5f3bb96d36525d18be149b51b86a859c", "source_response": "BMP_2026/raw/2026_BMP_9_1_Cisterns/response.json", "source_response_sha256": "8b4ab46e5daeba0e4f83a2cfea4df6076219e0d6aea9718b26d3adfdf0ad52be", "source_image": "BMP_2026/raw/2026_BMP_9_1_Cisterns/pages/page-0007-img-01.jpg", "sha256": "a5333f5129408ad976b4d22188ab74c461ac1c99c0aa143bfed0ca7c9981ccc8", "bytes": 74206, "pdf_page": 7, "ordinal": 1, "ocr_image_id": "img-8.jpeg", "local_path": "images/page-0007-img-01.jpg", "bbox_pixels": [ 350, 833, 1351, 1533 ], "page_dimensions": { "dpi": 200, "height": 2200, "width": 1700 }, "ocr_provider": "mistral", "ocr_model": "mistral-ocr-latest", "context_excerpt": "all anticipated traffic and other design loads. The illustration below shows one possible configuration and flow path of a subsurface cistern and is not intended to limit the design.\n\n## Subsurface Cistern\n\n[OCR image]\n\n## Safety\n\n- Cisterns must be designed to safely convey overflows to downstream drainage systems. The design of the overflow structure must be sufficient to provide safe, stable discharge of stormwater in the event of an overflow. 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Therefore, it is necessary to ensure that the cistern stormwater reuse demand at the project site is sufficient to ensure that the cistern is emptied in time for the next rain event. 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