Farming Rules for Water explained
Guide

Farming Rules for Water explained

What the Farming Rules for Water actually require, what counts as reasonable precaution, and the records that show you have complied.

Who the rules apply to, and the core requirement

These apply everywhere in England, not just in NVZs

That's the single most common misunderstanding. The Farming Rules for Water came into force on 2 April 2018 and apply to all land managers in England, in an NVZ or not, assured or not, in a scheme or not. Extra requirements then sit on top inside an NVZ, and our NVZ guide sets out what those are.

They're enforced by the Environment Agency, and the approach is advice-led. An officer who finds a problem will normally tell you to fix it before anything else happens. That's a real difference from a cross-compliance style penalty, but repeat problems and pollution incidents do escalate.

The core rule: plan against need

The most fundamental requirement is this one. Nitrogen, phosphorus and organic manures must be applied to meet soil and crop need, and no more. Applying because the spreader was free, the store was full, or it was a nice dry week is not a defence.

Planning means taking account of:

  • The crop and its actual nutrient requirement.
  • The nutrients already in the soil.
  • The weather, forecast as well as current.
  • Soil type, condition and how wet it is.
  • Slope, ground cover and proximity to water.

To do any of that you need soil analysis. Your results for pH, phosphorus, potassium and magnesium must be no more than five years old at the time of application. Our soil sampling guide covers how often to sample and what to test for, and the RB209 guide covers how you turn those results into a planned rate.

Where you can't apply, and what counts as reasonable precaution

Where you can't apply

The distances differ depending on what you're spreading, which catches people out.

  • Organic manure - not within 10 metres of inland freshwaters or coastal waters, reduced to 6 metres where you're using precision equipment.
  • Manufactured fertiliser - not within 2 metres of inland freshwaters or coastal waters.
  • Either of them - not within 50 metres of a spring, well or borehole.
Diagram showing how far back you must stay from water: 2 metres for manufactured fertiliser, 6 metres for organic manure with precision equipment, 10 metres for organic manure as standard, and 50 metres from a spring, well or borehole

On top of that, don't apply when the soil is waterlogged, flooded, frozen or snow covered, or anywhere there's a significant risk of nutrients reaching water whatever the distance.

Reasonable precautions

You're expected to take reasonable precautions to stop diffuse pollution. In practice that covers:

  • Soil erosion and run-off. Managing tramlines, compaction, ground cover over winter and where you site tracks and gateways.
  • Livestock. Keeping stock off ground where poaching would cause run-off to water, and siting feeders and troughs at least 10 metres from inland freshwaters or coastal waters, and 50 metres from a spring, well or borehole.
  • Stored materials. Field heaps sited away from water and moved between years.

The test is whether a reasonable farmer would have foreseen the risk, so write down that you considered it.

Evidence, autumn manure, the other countries, and how it all fits together

What an officer asks to see

There's no prescribed record format, which is why people struggle. In practice a visit goes better if you can produce:

  • Soil analysis less than five years old for the fields in question.
  • A nutrient management plan showing the crop requirement and what you planned to apply.
  • Application records - product, rate, date, field.
  • Something showing you assessed the risk before spreading, such as a dated note on weather and soil conditions.

Most farms have nothing for the last one. The decision got made sensibly enough, but nobody wrote it down. In Soil Benchmark the conditions go on the application job sheet, alongside the rate and the field, so the note is made by whoever was there on the day rather than reconstructed by someone else in an office later.

Autumn and winter manure, and how this gets enforced

Two beliefs circulate about this, and neither is right. One is that the rules ban autumn spreading of organic manure outright. The other is that farms carrying a lot of muck are somehow exempt from the crop need test.

What actually exists is statutory guidance from Defra, Applying the Farming Rules for Water, which tells the Environment Agency how to enforce the nutrient application rule. It doesn't disapply the rule. It directs the Agency, when deciding whether enforcement is appropriate, to take account of the precautions you took, in particular:

  • Establishing green cover by 15 October, unless you have an agronomic or environmental reason not to - delaying drilling to deal with blackgrass, or letting medium and heavy land weather before a spring crop, are the examples the guidance itself gives.
  • Incorporating organic manures into the soil after application, unless there's a sound agronomic or environmental reason not to.
  • Application rates that are sensible for the situation.

So autumn applications aren't prohibited, and a farm with a lot of manure isn't outside the rules. The position is that the application still has to be planned against soil and crop need, and if you've taken the precautions above you're in a much better place when an officer looks at it. A full store, on its own, is not a justification.

The Agency's approach to enforcing these rules was challenged in the High Court and upheld in May 2024, so this is settled rather than provisional. The guidance was last updated in June 2025 and is due for review by September 2028, so it's worth a look before you plan an autumn programme around it.

Wales and Scotland

The Farming Rules for Water are an England regime. The other two countries cover the same ground differently.

  • Wales - the Water Resources (Control of Agricultural Pollution) (Wales) Regulations 2021. They apply across the whole country and roll the nitrate rules and the pollution prevention rules into a single regime. Enforced by Natural Resources Wales.
  • Scotland - the diffuse pollution General Binding Rules, made under the Controlled Activities Regulations and enforced by SEPA.

The principle is the same in all three. The distances and record expectations aren't, so work to the regime that covers your land.

How this fits with everything else

If you're already producing an RB209 nutrient plan for Red Tractor, or a soil management plan for a scheme, you've done most of the work. These rules don't ask for a separate document. They ask you to be able to show that applications were planned against need and that you took precautions.

Building a nutrient management plan

RB209 recommendations, with the manures counted properly

Nutrient Nerd builds the RB209 plan for arable and grassland, counts organic manures as available N, P, K and S rather than tonnes, and checks closed periods, N max and field limits as you plan rather than afterwards. It produces linked job sheets for whoever's spreading, and a compliance certificate you can show inspectors or the supply chain.

Get your Farm Compliance done today