Manufactured Treatment Device¶

Manufactured treatment devices in the live source corpus are governed by BMP Manual Chapter 11.3. This page stays with that source-backed reading: a non-GI category of compact below-grade treatment devices whose exact unit performance depends on the specific device and operating context, not on the category name alone.

Structured citation evidence for this page lives in the sibling claim manifest.

Overview¶

In the live source set, Chapter 11.3 is the source-backed anchor for the MTD category. The page should be read as a category-level treatment entry point rather than as proof that every proprietary unit behaves the same way.

Source Mapping¶

The live citations layer resolves this route directly to the following canonical source bundles.

Route type: canonical
2023 source bundle: Chapter 11.3 (2023_BMP_11_3) - Manufactured Treatment Devices (Non-GI)
2026 source bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices

Key verified claims already tied to this page manifest: - Manufactured treatment devices are source-backed through Chapter 11.3. - Manufactured treatment devices remain a non-GI category rather than a single uniform BMP type. - MTD maintenance stays tied to cleanout, access, and treatment capacity.

Design Criteria¶

The reconciled design criteria below come from the live crosswalk and page-level claim set, not from the older narrative snapshot.

This route does not have a dedicated parameter table in the crosswalk, so the controlling criteria stay tied to the verified claims and canonical source-bundle mapping below.

Source-backed criteria that still control this route: - Manufactured treatment devices are source-backed through Chapter 11.3. - Manufactured treatment devices remain a non-GI category rather than a single uniform BMP type. - MTD maintenance stays tied to cleanout, access, and treatment capacity.

Siting Constraints¶

The current source-backed siting review should focus on:

whether the chosen device is being described at the right level of generality for a Chapter 11.3 category page
whether access, maintenance, and fit within the drainage system are realistic
whether the page is being used to overstate GI or generalized removal performance that belongs to a specific approved unit rather than to the whole category

Maintenance¶

Maintenance remains device-centered:

keep sediment and debris storage from exhausting the unit
maintain cleanout and inspection access
treat missed maintenance as direct loss of treatment reliability

Source Bundles¶

Use these source bundles when checking the live extracted text or paired OCR evidence:

2023 bundle: Chapter 11.3 (2023_BMP_11_3) - Manufactured Treatment Devices (Non-GI)
2026 bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices