---
title: "Conservative Data Fields | Definitions"
slug: "conservative-data-files"
description: "Learn about conservative data fields and the relevant datafile format in the 1D water quality solver."
tags: ["1D river modelling"]
updated: 2022-08-05T05:17:18Z
published: 2022-08-05T05:17:18Z
canonical: "help.floodmodeller.com/conservative-data-files"
stale: true
---

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

# Conservative Data Fields

## Data Input

In order to input the required information for this pollutant into the Water Quality model, the user needs to open the .con file in a Text Editor and type in the information in the format mentioned in the section below.

## Datafile format

Line 1 CONSERVATIVE

Where:

CONSERVATIVE = keyword

Overview

[Conservative](/v1/docs/conservative)