---
title: "PL External Corrosion and ECH"
slug: "plss-external-corrosion-and-ech"
updated: 2026-10-27T23:12:11Z
published: 2026-10-27T23:12:11Z
canonical: "ims-handbook.cenosco.com/plss-external-corrosion-and-ech"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PL External Corrosion and ECH

Currently we are still working on the Online Manual.

Please see below (and attached) the pdf files:

PLSS External Corrosion and ECH User Manual:

[PDF document](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/User%20Manual%20IMS-PLSS%20PL%203b%20Past%20Future%20CR%20and%20Morphology%20-%20ECH%20import%20data.pdf?sv=2026-02-06&spr=https&st=2026-10-28T17%3A37%3A35Z&se=2026-10-28T18%3A37%3A35Z&sr=c&sp=r&sig=yajIurU754IjL%2FkoKBhKaVrjQYZgMi5%2B9azbMWIhEIQ%3D)

PLSS External Corrosion and ECH data:

[User Manual IMS-PLSS PL 3b Past Future CR and Morphology - ECH import data.zip](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/User%20Manual%20IMS-PLSS%20PL%203b%20Past%20Future%20CR%20and%20Morphology%20-%20ECH%20import%20data.zip?sv=2026-02-06&spr=https&st=2026-10-28T17%3A37%3A35Z&se=2026-10-28T18%3A37%3A35Z&sr=c&sp=r&sig=yajIurU754IjL%2FkoKBhKaVrjQYZgMi5%2B9azbMWIhEIQ%3D)

See also [PLSS External Corrosion Assessment](/v414/docs/plss-external-corrosion-assessment) and [PLSS CP](/v414/docs/plss-cp).

## Attachments

- [User Manual IMS-PLSS PL 3b Past Future CR and Morphology - ECH import data.pdf](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/User Manual IMS-PLSS PL 3b Past Future CR and Morphology - ECH import data.pdf)
- [User Manual IMS-PLSS PL 3b Past Future CR and Morphology - ECH import data.zip](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/User Manual IMS-PLSS PL 3b Past Future CR and Morphology - ECH import data.zip)