Membrane System¶

This page is a source-backed entry point for the membrane-system concept, but the live citations layer resolves it as a subtype of BMP Manual Chapter 11.3 manufactured treatment devices rather than as a standalone chapter. The page therefore treats the concept as a derived MTD application, not as its own source authority.

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

Overview¶

In the live source set, a membrane system is best read as a compact non-GI treatment-device subtype within the Chapter 11.3 MTD family. The source-backed emphasis is on enclosed treatment, unit-specific design, and maintenance burden rather than on a separate standalone BMP chapter.

The label membrane system is an industry-conventional shorthand in this site layer. In the live source-backed reading, it maps to the Chapter 11.3 filtration-device subtype rather than to a chapter-defined BMP category.

Source Mapping¶

This route is a derived or alias page. The live citations layer keeps it, but the underlying authority remains the canonical source chapter shown below.

Route type: derived
2023 source bundle: Chapter 11.3 (2023_BMP_11_3) - Manufactured Treatment Devices (membrane-system subtype)
2026 source bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices (membrane-system subtype)
Source-basis note: Membrane systems are treated as a derived subtype within the Manufactured Treatment Device family. The live source corpus does not include a standalone 11.8 membrane chapter, so this entry remains anchored to Ch. 11.3 unless a membrane-specific source bundle is imported.

Key verified claims already tied to this page manifest: - Membrane systems are source-derived from Chapter 11.3 rather than from a standalone chapter. - Membrane systems stay within the Chapter 11.3 non-GI MTD family in the live source set. - Membrane-system maintenance remains tied to the Chapter 11.3 MTD maintenance framework.

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: - Membrane systems are source-derived from Chapter 11.3 rather than from a standalone chapter. - Membrane systems stay within the Chapter 11.3 non-GI MTD family in the live source set. - Membrane-system maintenance remains tied to the Chapter 11.3 MTD maintenance framework.

Siting Constraints¶

The current source-backed siting review should focus on:

whether the proposed system is being described at the right level of generality for a Chapter 11.3-derived subtype
whether pretreatment, cleanout access, and long-term maintenance obligations are realistic
whether the page is being used to overstate GI status or source-backed performance that the live corpus does not independently prove

Maintenance¶

Maintenance remains unit-centered:

keep pretreatment and inspection access functioning
preserve unit operating reliability through routine maintenance and cleanout
treat deferred maintenance or unit shutdown as direct treatment-performance risk

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 (membrane-system subtype)
2026 bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices (membrane-system subtype)