---
title: How To Identify And Delete Wrong Surveyor Points
description: "There are times where users will encounter problems where ***the imported surveyor points are having too high or too low Z-value***. These wrong surveyor points should be deleted. ## How To Identify The Wrong Surveyor Points 1. Go to “Survey…"
url: "https://mes100.com/docs/identify-delete-wrong-surveyor-points/"
updated: "2026-10-12"
category: Troubleshooting / Earthwork
tags:
  - Earthwork
---

# How To Identify And Delete Wrong Surveyor Points

There are times where users will encounter problems where ***the imported surveyor points are having too high or too low Z-value***. These wrong surveyor points should be deleted.

## How To Identify The Wrong Surveyor Points

1. Go to “Survey Points & Soil Info” > “Edit”

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-170f826c6b.png?w=1080&ssl=1)

1. Ensure that the “Spread Input” tab is active

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-9118715f61.png?w=1080&ssl=1)

1. Click the table header “Z (m)” to sort the Z-value

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-bc5331f525.png?w=1080&ssl=1)

1. After sorting the “Z (m)” column, the Z-value will be arranged in ascending or descending order. By doing so, users can directly identify which point has too high or too low Z-value.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-d5c663a80e.png?w=1080&ssl=1)

1. In order to confirm that a particular point has too high or too low Z-value, users can check the Z-value of neighbouring surveyor points.
2. Double click on the row which users want to check the neighbouring surveyor points, the selected points will be highlighted on the screen.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-f41ec8d6b8.png?w=1080&ssl=1)

1. Users can click on the neighbouring surveyor point in order to check the Z-value. As in the picture below, the surveyor point highlighted in the red box has a Z-value of 3971.09m whereas the neighbouring surveyor point highlighted in the green box has a Z-value of 34.180m.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-aeb0197b2a.png?w=1080&ssl=1)

1. The second neighbouring surveyor point highlighted in yellow box has a Z-value of 35.324m. **Hence, this shows that the surveyor point highlighted in the red box does have too high Z-value compared to the neighbouring surveyor points**.

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-b52fa12494.png?w=1080&ssl=1)

1. As for another options, users can hover the mouse cursor near the problematic surveyor point area and check the GL below the “Spread Input” tab

![](https://i0.wp.com/mes100.com/wp-content/uploads/2016/10/GL-value.gif?w=1080&ssl=1)

## How To Delete The Wrong Surveyor Points

1. After identifying which survey point should be deleted, select the row in Spread Input and press delete

![](https://i0.wp.com/mes100.com/wp-content/uploads/2026/10/google-b08d251e87.png?w=1080&ssl=1)

### *Related*

 [![](https://i0.wp.com/mes100.com/wp-content/uploads/2024/10/me-small.jpg?resize=100%2C100&ssl=1)](https://mes100.com/author/admin/)[Ngu Soon Hui](https://mes100.com/author/admin/)

I’m the [Benevolent Dictator for Life](https://en.wikipedia.org/wiki/Benevolent_dictator_for_life) for MiTS Software cum Editor of this website. Read more [here](/about-ngu-soon-hui/).

You can also contact me at soonhui@mes100.com