Oil/Grit Separator¶

This page is a source-backed entry point for the oil-grit-separator 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 it 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, an oil/grit separator is best read as a compact non-GI treatment-device subtype within the Chapter 11.3 MTD family. The source-backed emphasis is on sediment, floatables, and maintenance management rather than on GI function.

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

Source Mapping¶

This route is retained for site navigation, but the live citations layer flags a taxonomy or classification caution for it.

Route caution: Oil/Grit Separators are a type of Manufactured Treatment Device (MTD). Same as hydrodynamic separators - should cite Ch. 9.5 or 11.3 depending on application.
Route type: derived
2023 source bundle: Chapter 11.3 (2023_BMP_11_3) - Manufactured Treatment Devices (oil/grit separator subtype)
2026 source bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices (oil/grit separator subtype)
Source-basis note: Oil/grit separators are a type of Manufactured Treatment Device. Cite Ch. 11.3 for design criteria.

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

Siting Constraints¶

The current source-backed siting review should focus on:

whether the device is being used at the right level of treatment expectation for a Chapter 11.3 subtype
whether maintenance access and cleanout logistics are realistic
whether the page is being used to overstate GI, recharge, or broad pollutant-removal claims that the source basis does not independently prove

Maintenance¶

Maintenance remains cleanout-centered:

preserve sediment and floatables storage capacity
maintain access for inspection and vacuuming
treat deferred cleanout as direct loss of device performance

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 (oil/grit separator subtype)
2026 bundle: Chapter 11.3 (2026_BMP_11_3) - Non-GI Manufactured Treatment Devices (oil/grit separator subtype)