I1SCHEDULE 1Amount of manure, nitrogen and phosphate produced by grazing livestock and non-grazing livestock

Regulations 3, 4, 29, 34 and 36

Annotations:
Commencement Information
I1

Sch. 1 in force at 1.4.2021, see reg. 1(3)

Table 1Grazing livestock

Category

Daily manure produced by each animal (litres)

Daily nitrogen produced by each animal (grams)

Daily phosphate produced by each animal (grams)

Cattle

Calves (all categories except veal) up to 3 months:

7

23

12.7

Dairy cows—

from 3 months and less than 13 months:

20

95

34

from 13 months up to first calf:

40

167

F169

After first calf and—

annual milk yield more than 9000 litres:

64

315

142

annual milk yield between 6000 and 9000 litres:

53

276

121

annual milk yield less than 6000 litres:

42

211

93

Beef cows or steers(a)

from 3 months and less than 13 months:

20

91

33

from 13 months and less than 25 months:

26

137

43

From 25 months—

females or steers for slaughter:

31

137

60

females for breeding—

weighing 500 kg or less:

32

167

65

weighing more than 500 kg:

45

227

86

Bulls

Non-breeding, 3 months and over:

26

148

24

Breeding—

from 3 months and less than 25 months:

26

137

43

from 25 months:

26

132

60

Sheep

From 6 months up to 9 months old:

1.8

5.5

0.76

From 9 months old to first lambing, first tupping or slaughter:

1.8

3.9

2.1

After lambing or tupping(b)

weight less than 60 kg:

3.3

21

8.8

weight from 60 kg:

5

F233

10.0

Goats, deer and horses

Goats:

3.5

41

18.8

Deer—

breeding:

5

42

17.6

other:

3.5

33

11.7

Horses:

24

58

56

(a)

Castrated male.

(b)

In the case of a ewe, this figure includes one or more suckled lambs until the lambs are aged six months.

Table 2Non-grazing livestock

Category

Daily manure produced by each animal (litres)

Daily nitrogen produced by each animal (grams)

Daily phosphate produced by each animal (grams)

Cattle

Veal calves:

7

23

12.7

Poultry(a)

Chickens used for production of eggs for human consumption—

less than 17 weeks:

0.04

0.64

0.47

from 17 weeks (caged):

0.12

1.13

1.0

from 17 weeks (not caged)

0.12

1.5

1.1

Chickens raised for meat:

0.06

1.06

0.72

Chickens raised for breeding—

less than 25 weeks:

0.04

0.86

0.78

from 25 weeks:

0.12

2.02

1.5

Turkeys—

male:

0.16

3.74

3.1

female:

0.12

2.83

2.3

Ducks:

0.10

2.48

2.4

Ostriches:

1.6

3.83

18.5

Pigs

Weight from 7 kg and less than 13 kg:

1.3

4.1

1.3

Weight from 13 kg and less than 31 kg:

2

14.2

6.0

Weight from 31 kg and less than 66 kg—

dry fed:

3.7

24

12.1

liquid fed:

7.1

24

12.1

Weight from 66 kg and—

Intended for slaughter—

dry fed:

5.1

33

17.9

liquid fed:

10

33

17.9

sows intended for breeding that have not yet had their first litter:

5.6

38

20

sows (including their litters up to a weight of 7 kg per piglet) fed on a diet supplemented with synthetic amino acids:

10.9

44

37

sows (including their litters up to a weight of 7 kg per piglet) fed on a diet without synthetic amino acids:

10.9

49

37

breeding boars from 66 kg up to 150 kg:

5.1

33

17.9

breeding boars, from 150 kg

8.7

48

28

(a)

Note: all figures for poultry include litter.

F4SCHEDULE 1AEnhanced nutrient management requirements

Regulations 4A and 4B

Annotations:

Application of Schedule 1A1

The following enhanced nutrient management requirements apply to the occupier of a qualifying grassland holding intending during the relevant period to apply to the holding, whether directly by an animal or by spreading, a total amount of nitrogen in grazing livestock manure which exceeds 170 kg multiplied by the area of the holding in hectares.

Interpretation2

In this Schedule—

  • soil phosphorus index” (“mynegai ffosfforws pridd”) means a reference to the index number assigned to the soil in accordance with Table 1 of this Schedule, to indicate the level of phosphorus available from the soil;“soil sampling analysis” (“dadansoddiad samplu pridd”) means analysis of a soil sample carried out by a soil testing laboratory to analyse soils for phosphorus.

Livestock manure to be applied to the holding during relevant period3

The occupier must ensure that the only livestock manure to be applied to the holding during the relevant period, whether directly by an animal or by spreading, is manure produced by the livestock on the holding.

Soil sampling analysis4

1

The occupier must, for the purposes of determining the soil phosphorus index for each area of the holding with the same cropping regime, nutrient management regime and soil type, undertake soil sampling analysis of at least every five hectares of the agricultural area of the holding with the same cropping regime, nutrient management regime and soil type.

2

An occupier may rely on the results of previous soil sampling analysis of the agricultural area of the holding with the same cropping regime, nutrient management regime and soil type for the purposes of sub-paragraph (1), provided such sampling analysis was carried out within the period beginning with 1 January 2020 and ending with 31 December 2023.

3

Where phosphorus soil sampling analysis of the agricultural area of the holding with the same cropping regime, nutrient management regime and soil type has not been carried out within the period referred to in sub-paragraph (2), such sampling analysis must be undertaken within the period beginning with 1 January 2024 and ending with 30 March 2024.

Determining the soil phosphorus index5

The occupier must determine the soil phosphorus index for each area of the holding with the same cropping regime, nutrient management regime and soil type by using the results from the soil sampling analysis under paragraph 4 and the values in the following table.

Table 1 – Phosphorus index

Phosphorus index

Phosphorus (P) mg/L

Olsen (P)

0

0-9

1

10-15

2

16-25

3

26-45

4

46-70

5

71-100

6

101-140

7

141-200

8

201-280

9

Over 280

Planning the spreading of phosphate fertiliser6

In addition to the production of nitrogen spreading plans under regulation 6 (planning the spreading of nitrogen fertiliser) the occupier must, within the period beginning with 1 January 2024 and ending with 30 March 2024—

a

calculate the optimum amount of phosphate fertiliser (kg) that should be spread on the crop during the relevant period, taking into account the soil phosphorus index, and

b

produce a plan (“enhanced nutrient management plan”) for the spreading of phosphate fertiliser during the relevant period.

Requirements for enhanced nutrient management plans7

1

The enhanced nutrient management plan for the holding must—

a

include a risk map, produced in accordance with paragraph 11(1), indicating the location of the fields to which the plan relates, and

b

clearly state in relation to any field referred to in the plan the type of fertiliser to be used.

2

The enhanced nutrient management plan must record—

a

the soil phosphorus index for each area of the holding with the same cropping regime, nutrient management regime and soil type,

b

the optimum amount of phosphate fertiliser (kg) that should be spread on the crop, taking into account the soil phosphorus index,

c

the amount of nitrogen (kg) likely to be available for uptake by the crop from any organic manure intended to be spread for crop uptake in the growing season during the relevant period,

d

the amount of phosphate (kg) likely to be supplied to meet the requirement of the crop from any organic manure spread or intended to be spread during the relevant period, calculated in accordance with—

i

tables 1 and 2 (as applicable) of Schedule 1,

ii

sampling and analysis in accordance with Part 2 of Schedule 3, or

iii

technical analyses provided by the supplier,

e

the amount of manufactured nitrogen fertiliser (kg) required (that is, the optimum amount of nitrogen required by the crop less the amount of nitrogen that will be available for crop uptake from any organic manure spread during the relevant period), and

f

the amount of manufactured phosphate fertiliser (kg) required (that is, the optimum amount of phosphate required by the crop less the amount of phosphate supplied for crop uptake from any organic manure spread for the purpose of fertilising the crop during the relevant period).

Total phosphorus spread on a holding during relevant period8

Irrespective of the figure recorded in the enhanced nutrient management plan in accordance with paragraph 7(2)(b), the occupier must ensure that the total amount of—

a

phosphate from manufactured phosphate fertiliser, and

b

phosphate from organic manure, in the growing season in which it is spread,

does not, during the relevant period, exceed the limits set out in paragraph 9.

Maximum phosphate limits by crop9

1

Subject to sub-paragraph (2), the total amount of phosphate spread on any crop listed in the first column of any of the tables below must not exceed the figure under the applicable soil phosphorus index number in the same table.

Table 2 - Maximum phosphate for grass

Soil Phospshorus index (kg P2O5/ha)

0

1

2

3

4+

At grass establishment

120

80

50

30

0

Grazing

80

50

20

0

0

Hay

80

55

30

0

0

Silage

First cut

100

70

40

20

0

Second Cut

25

25

25

0

0

Third Cut

15

15

15

0

0

Fourth Cut

10

10

10

0

0

Table 3 - Maximum phosphate for other crops

P-index

0

1

2

3

4

5+

Crop

Phosphate (kg/ha)

Forage crops

Forage maize

115

85

55

20

0

0

Wholecrop cereals

115

85

55

0

0

0

Forage swedes and turnips (lifted)

105

75

45

0

0

0

Fodder beet (lifted)

120

90

60

0

0

0

Forage rape, swedes and stubble turnips (grazed)

85

55

25

0

0

0

Kale (grazed)

80

50

20

0

0

0

Rye-grass sown for seed

90

60

30

0

0

0

Arable crops (Straw incorporated)

Winter wheat

110

80

50

0

0

0

Winter triticale

125

95

65

0

0

0

Winter Barley

110

80

50

0

0

0

Spring barley

105

75

45

0

0

0

Spring wheat/spring triticale/rye/oats

110

80

50

0

0

0

Arable crops (Straw removed)

Winter wheat

115

85

55

0

0

0

Winter triticale

130

100

70

0

0

0

Winter barley

115

85

55

0

0

0

Spring barley

105

75

45

0

0

0

Spring wheat

110

80

50

0

0

0

Spring triticale/rye

110

80

50

0

0

0

Oats

115

85

55

0

0

0

Oilseeds

Winter oilseed rape

110

80

50

0

0

0

Spring oilseed rape or linseed

90

60

30

0

0

0

Peas (dried and vining) and beans

100

70

40

0

0

0

Sugar Beet

110

80

50

0

0

0

Potatoes

250

210

170

100

0

0

Vegetables and bulbs

Asparagus (establishment)

175

150

125

100

75

0

Asparagus (subsequent years following establishment)

75

75

50

50

25

0

Brussels sprouts, storage cabbage, head cabbage and collards

200

150

100

50

0

0

Cauliflower and calabrese

200

150

100

50

0

0

Celery

250

200

150

100

50

0

Peas (market pick)

185

135

85

35

0

0

Broad beans, dwarf and runner beans

200

150

100

50

0

0

Radish and sweetcorn

175

125

75

25

0

0

Lettuce and wild rocket

250

200

150

100

60(a)

60(a)

Onions and leeks

200

150

100

50

60(a)

60(a)

Beetroot, swedes, turnips, parsnips and carrots

200

150

100

50

0

0

Bulbs and bulb flowers

200

150

100

50

0

0

Coriander and mint

175

125

75

25

0

0

Courgettes

175

125

75

25

0

0

Fruit and vines before planting

200

100

50

50

0

0

Hops before planting

250

175

125

100

50

0

Established top fruit

80

40

20

20

0

0

Blackcurrants, redcurrants, gooseberries, raspberries, loganberries, tayberries, Blackberries, strawberries and vines

110

70

40

40

0

0

Established Hops

250

200

150

100

50

0

(a)

At P Index 4 and 5, up to 60 kg P2 O5/ha can be used as a starter fertiliser, close to the seed. The amount of phosphate applied as a starter dose, together with the amount added in the base dressing, should not exceed the amount of phosphate required to replace that removed by the previous crop.

2

Spreading phosphate on grass and other crops above the values stipulated within the tables above is permitted subject to prior receipt of written advice from a person who is a member of the Fertiliser Advisers Certification and Training Scheme.

Additional information to be recorded during the relevant period10

1

In addition to the information to be recorded under regulation 7 (additional information to be recorded during the year) the occupier must—

a

before spreading organic manure during the relevant period, record the total phosphate content (kg) of the organic manure; and

b

before spreading manufactured phosphate fertiliser during the relevant period, record—

i

the amount of phosphate (kg) required (that is, the optimum amount of phosphate required by the crop less the amount of phosphate that will be supplied for crop uptake from any organic manure spread), and

ii

the planned month for spreading.

Risk maps – additional requirements11

1

In addition to the requirements under regulation 11 (risk maps), the risk map must—

a

show each field marked with a reference number or number to enable cross reference to fields recorded in fertilisation plans,

b

correspond with the agricultural area of the holding, and

c

be completed by 31 March 2024.

2

Where a change in circumstances affects a matter referred to in paragraph (1)(a) or (b), the occupier must update the map within one month of the change, beginning with the day after the change.

Maintaining the holding as a qualifying grassland holding12

The occupier must maintain the holding to ensure at least 80% of the agricultural area is sown with grass during the relevant period.

Closed period for ploughing grass on the holding13

The occupier must ensure that no person—

a

ploughs temporary grassland on sandy soils on the holding within the period beginning with 1 July 2024 and ending with 31 December 2024,

b

ploughs grass on sandy soils before 16 January 2024 on the holding where livestock manure has been spread on that grass within the period beginning with 1 September and ending with 31 December in the previous calendar year, and

c

ploughs grass on soils that are not sandy soils on the holding before 16 January 2024 where livestock manure has been spread on that grass within the period beginning with 15 October in the previous calendar year and ending with 15 January 2024.

Sowing of crops following grass on the holding14

Where any grass on the holding is ploughed during the relevant period, the land must be—

a

sown with a crop with high nitrogen demand within four weeks beginning with the day after the date of ploughing grass, or

b

sown with grass within six weeks, beginning with the day after the date of ploughing grass.

Crop rotation on the holding15

Crop rotation on the holding during the relevant period must not include leguminous or other plants fixing atmospheric nitrogen except for grass with less than 50% clover, or any other leguminous plants that are under-sown with grass.

Recording the size of the holding16

1

The occupier must record the total agricultural area and the area of grass within the holding by 1 March 2024.

2

If the size of the holding or area of grass within it changes the occupier must update the record within one month beginning with the day after the change.

Record of nitrogen and phosphate produced by animals17

1

The occupier must make a record of the expected number and category (in accordance with the categories in Tables 1 and 2 in Schedule 1) of livestock to be kept on the holding during the relevant period.

2

Following the record making requirements in sub-paragraph (1), the occupier must then calculate and record the amount of nitrogen and phosphate (kg) in manure expected to be produced by the livestock on the holding during the relevant period using Tables 1 and 2 (as applicable) in Schedule 1.

3

The records to be made in accordance with sub-paragraphs (1) and (2) must be made before 1 March 2024.

Livestock manure intended to be sent off the holding18

1

The occupier must—

a

make a record of the type and amount of livestock manure (tonnes or cubic metres as applicable) that is intended to be sent off the holding during the relevant period, and

b

assess and record the amount of nitrogen (kg) in the livestock manure recorded under paragraph (a) in accordance with regulation 36(4) and Parts 1 and 2 of Schedule 3.

2

The records to be made under sub-paragraph (1) must be made by 1 March 2024.

Records of crops sown19

In addition to the requirements of regulation 39 (records of crops sown), if the occupier intends to spread phosphate fertiliser during the relevant period, the occupier must within one week of sowing a crop record—

a

the crop sown, and

b

the date of sowing.

Records of spreading phosphate fertiliser20

In addition to the requirements of regulation 40 (records of spreading nitrogen fertiliser), the occupier must, during the relevant period, record—

a

within one week of spreading organic manure the total phosphorus content (kg), and

b

within one week of spreading manufactured phosphate fertiliser—

i

the date of spreading, and

ii

the amount of phosphate spread (kg).

Recording the date of ploughing21

In addition to the requirements of regulation 41 (subsequent records), the occupier must, during the relevant period, record within one week of ploughing grass on the holding the date of that ploughing.

Fertilisation accounts22

1

The occupier, or any person on behalf of the occupier, must submit fertilisation accounts for the relevant period to NRW by 31 March 2025.

2

 The fertilisation accounts must be submitted to NRW by e-mail.

3

The fertilisation account must record—

a

the total agricultural area of the holding in hectares;

b

the area of the holding in hectares covered by—

i

winter wheat,

ii

spring wheat,

iii

winter barley,

iv

spring barley,

v

winter oilseed rape,

vi

sugar beet,

vii

potatoes,

viii

forage maize,

ix

grass, and

x

other crops;

c

the number and category of animals kept on the holding during the relevant period in accordance with the categories described in Tables 1 and 2 in Schedule 1;

d

the amount of nitrogen and phosphate (kg) in the manure produced by the animals on the holding during the relevant period using Tables 1 and 2 in Schedule 1;

e

the amount (tonnes or cubic metres as applicable), type and characteristics of livestock manure sent off the holding during the relevant period;

f

the amount of nitrogen and phosphate (kg) in the manure recorded under sub-paragraph (3)(e), calculated in accordance with Schedule 1;

g

the weight (tonnes) and nitrogen content (kg) of all manufactured nitrogen fertiliser stocks kept on the holding during the relevant period;

h

the weight (tonnes) and phosphate content (kg) of all manufactured phosphate fertiliser stocks kept on the holding during the relevant period;

i

the weight (tonnes) and nitrogen content (kg) of all manufactured nitrogen fertiliser brought on to and sent off the holding during the relevant period;

j

the weight (tonnes) and phosphate content (kg) of all manufactured phosphate fertiliser brought on to and sent off the holding during the relevant period.

Soil protection measures23

1

The occupier must protect all soil by ensuring that all land is covered by crops, stubbles, residues or other vegetation at all times, except where establishing such cover would create a significant risk of soil erosion and significant risk of nitrogen and phosphorus getting into surface water.

2

Where land has been harvested using a combine harvester, forage harvester or mower, the occupier must ensure that, throughout the relevant period beginning with the first day after harvest and ending with 31 December 2024, one of the following conditions is met on that land at all times—

a

the stubble of the harvested crop remains in the land, or

b

the land is prepared as a seedbed for a crop or temporary cover crop within 14 days of harvest, beginning with the first day after harvest, and—

i

the crop, or temporary cover crop, is sown within a period of 10 days beginning with the day after final seedbed preparation, or

ii

if sowing within that 10-day period would lead to significant risk of soil erosion, and nitrogen or phosphorus entering a surface water, the crop, or temporary cover crop, is sown as soon as is practicable after the land ceases to be waterlogged.

Locations of supplementary feeding and drinking sites for livestock24

1

The occupier must ensure during the relevant period that sites where supplementary feeding for livestock are provided are not located within 20 metres of a watercourse on any land.

2

The occupier must ensure during the relevant period that sites where supplementary drinking for livestock are provided are not located within 10 metres of a watercourse on any land.

Spreading of slurry during relevant period25

If the occupier intends to spread slurry on the holding during the relevant period, precision spreading equipment must be used except where it would not be reasonably practicable to do so.

Spreading organic manure near surface water during relevant period26

The occupier must ensure that during the relevant period no person spreads organic manure within 15 metres of surface water unless using precision spreading equipment, in which case no person may spread organic manure within 10 metres of surface water.

I3SCHEDULE 2Fruit species

Regulation 5

Annotations:
Commencement Information
I3

Sch. 2 in force at 1.4.2021, see reg. 1(3)

Botanical Name

Common Name

Cydonia oblonga

Quince

Malus domestica

Apple

Mespilus germanica

Medlar

Morus spp.

Mulberry

Prunus armenaica

Apricot

Prunus avium

Sweet cherry

Prunus cerasus

Sour (cooking) cherry

Prunus ceracifera

Cherry plum

Prunus domestica

Plum

Prunus domestica subsp. insititia

Damson, Bullace

Prunus persica

Peach

Prunus persica var. nectarina

Nectarine

Prunus x gondouinii

Duke cherry

Prunus spinosa

Sloe

Pyrus communis

Pear

Pyrus pyrifolia

Asian pear

SCHEDULE 3Calculating nitrogen in organic manure

Regulations 9, 36 and 37

I2PART 1Standard Table

Annotations:
Commencement Information
I2

Sch. 3 Pt. 1 in force at 1.4.2021, see reg. 1(3)

Total amount of nitrogen in livestock manure

Manure other than slurry

Total nitrogen in each tonne (kg)

Manure other than slurry from—

cattle:

6

pigs:

7

sheep:

7

ducks:

6.5

horses:

7

goats:

6

Manure from laying hens:

19

Manure from turkeys or broiler chickens:

F330

Slurry

Total nitrogen in each cubic metre (kg)

cattle:

2.6

pigs:

3.6

Separated cattle slurry (liquid fraction)—

strainer box:

1.5

weeping wall:

2

mechanical separator:

3

Separated cattle slurry (solid fraction):

4

Separated pig slurry (liquid fraction):

3.6

Separated pig slurry (solid fraction):

5

Dirty water:

0.5

PART 2Sampling and analysis of organic manure

Slurry and other liquid and semi-liquid organic manureI41

1

In relation to slurry and other liquid and semi-liquid organic manure, at least five samples, each of 2 litres, must be taken.

2

Subject to sub-paragraph (3), the five samples must be taken from a vessel, and—

a

if reasonably practicable, the slurry must be thoroughly mixed before the samples are taken, and

b

each sample must be taken from a different location.

3

If a tanker used for spreading is fitted with a suitable valve, the samples may be taken while spreading, and each sample must be taken at intervals during the spreading.

4

Whether taken as described in sub-paragraph (2) or (3), the five samples must be poured into a larger container, stirred thoroughly and a 2 litre sample must be taken from that container and poured into a smaller clean container.

5

The 2 litre sample produced in accordance with sub-paragraph (4) must then be sent for analysis.

Solid manuresI52

1

In relation to solid manures, the samples must be taken from a manure heap.

2

At least ten samples of 1 kg each must be taken, each from a different location in a heap.

3

Each sub-sample must be taken at least 0.5 metres from the surface of the heap.

4

If samples are being collected to calculate compliance with the whole farm limit for pigs and poultry, four samples for analysis must be taken in a calendar year (one taken in each quarter) from manure heaps not more than 12 months old.

5

The sub-samples must be placed on a clean, dry tray or sheet.

6

Any lumps must be broken up and the sub-samples must be thoroughly mixed together.

7

A representative sample of at least 2 kg must then be sent for analysis.

I6SCHEDULE 4Permitted crops for the closed period

Regulations 20 and 22

Annotations:
Commencement Information
I6

Sch. 4 in force at 1.4.2021, see reg. 1(3)

Crop

Maximum nitrogen rate (kg/hectare)

Oilseed rape, winter(a)

30

Asparagus

50

Brassica(b)

100

Grass(a)(c)

80

Over-wintered salad onions

40

Parsley

40

Bulb onion

40

(a)

Nitrogen must not be spread on crops after 31 October.

(b)

An additional 50 kg of nitrogen per hectare may be spread every four weeks during the closed period up to the end of harvest.

(c)

A maximum of 40 kg of nitrogen per hectare may be spread at any one time.

SCHEDULE 5Requirements for silos

Regulation 24

I71

The requirement to be satisfied in relation to a silo is that it complies with the following provisions of this Schedule.

I82

The base of the silo must—

a

extend beyond any walls of the silo,

b

be provided at its perimeter with channels designed and constructed so as to collect any silage effluent that escapes from the silo, and

c

have adequate provision for the drainage of that effluent from those channels to an effluent tank through a channel or pipe.

I93

The capacity of the effluent tank must not be less than—

a

in the case of a silo with a capacity of less than 1,500 cubic metres, 20 litres for each cubic metre of silo capacity, and

b

in the case of a silo with a capacity of 1,500 cubic metres or more, 30 cubic metres plus 6.7 litres for each cubic metre of silo capacity in excess of 1,500 cubic metres.

I104

1

The base of the silo must be—

a

designed in accordance with the code of practice for design of concrete structures for retaining aqueous liquids published by the British Standards Institution and numbered BS 8007: 198719, or

b

constructed using appropriate hot-rolled asphalt in accordance with the code of practice for selection and use of construction materials published by the British Standards Institution and numbered BS 5502: Part 21: 199020.

2

The base of the silo, the base and walls of its effluent tank and channels and walls of any pipes must be impermeable.

I115

The base and walls of the silo, its effluent tank and channels and the walls of any pipes must, so far as reasonably practicable, be resistant to attack by silage effluent.

I126

No part of the silo, its effluent tank or channels or any pipes may be situated within 10 metres of any inland freshwaters or coastal waters into which silage effluent could enter if it were to escape.

I137

If the silo has retaining walls—

a

the retaining walls must be capable of withstanding minimum wall loadings calculated on the assumptions and in the manner indicated by paragraph 15.6 of the code of practice on buildings and structures for agriculture published by the British Standards Institution and numbered BS 5502: Part 22: 200321,

b

the silo must at no time be loaded to a depth exceeding the maximum depth consistent with the design assumption made in respect of the loadings of the retaining walls, and

c

notices must be displayed on the retaining walls in accordance with paragraph 18 of that code of practice.

I148

Subject to paragraph 9, the silo, its effluent tank and channels and any pipes must be designed and constructed so that with proper maintenance they are likely to continue to satisfy the requirements of paragraphs 2 to 5 and, if applicable, paragraph 7(a) for at least 20 years.

I159

If any part of an effluent tank is below ground level, the tank must be designed and constructed so that it is likely to continue to satisfy the requirements of paragraphs 4 and 5 for at least 20 years without maintenance.

SCHEDULE 6Requirements for slurry storage systems

Regulation 25

I161

The requirements to be satisfied in relation to a slurry storage system are as follows.

I172

The base of the slurry storage tank, the base and walls of any effluent tank, channels and reception pit, and the walls of any pipes, must be impermeable.

I183

The base and walls of the slurry storage tank, any effluent tank, channels and reception pit, and the walls of any pipes, must be protected against corrosion in accordance with paragraph 7 of the code of practice on buildings and structures for agriculture published by the British Standards Institution and numbered BS 5502: Part 50: 199322.

I194

The base and walls of the slurry storage tank and of any reception pit must be capable of withstanding characteristic loads calculated on the assumptions and in the manner indicated by paragraph 5 of the code of practice on buildings and structures for agriculture published by the British Standards Institution and numbered BS 5502: Part 50: 1993.

I205

1

Any facilities used for the temporary storage of slurry before it is transferred to a slurry storage tank must have adequate capacity to store—

a

the maximum quantity of slurry that (disregarding any slurry which will be transferred directly into a slurry storage tank) is likely to be produced on the premises in any two day period, or

b

a lesser capacity that F5NRW agrees in writing is adequate to avoid any significant risk of pollution of controlled waters.

2

Where slurry flows into a channel before discharging into a reception pit and the flow of slurry out of the channel is controlled by means of a sluice, the capacity of the reception pit must be adequate to hold the maximum quantity of slurry that can be released by opening the sluice.

I216

In the case of a slurry storage tanks with walls made of earth, the tank must have at least 750 mm of freeboard and 300 mm of freeboard in all other cases.

I227

No part of the slurry storage tank or any effluent tank, channels or reception pit may be situated within 10 metres of any inland freshwaters or coastal waters into which slurry could enter if it were to escape unless precautions are taken that F5NRW agrees in writing are adequate to avoid any significant risk of pollution of controlled waters.

I238

The slurry storage tank and any effluent tank, channels, pipes and reception pit must be designed and constructed so that with proper maintenance they are likely to continue to satisfy the requirements of paragraphs 2 to 4 for at least 20 years.

I249

If the walls of the slurry storage tank are not impermeable, the base of the tank must—

a

extend beyond the walls;

b

be provided with channels designed and constructed so as to collect any slurry that escapes from the tank;

c

have adequate provision for the drainage of the slurry from those channels to an effluent tank through a channel or pipe.

I2510

1

Subject to sub-paragraph (3), if the slurry storage tank or any effluent tank or reception pit is fitted with a drainage pipe there must be two valves in series on the pipe with each valve separated from the other by a minimum distance of 1 metre.

2

Each valve must be capable of shutting off the flow of slurry through the pipe and must be kept shut and locked in that position when not in use.

3

Sub-paragraph (1) does not apply in relation to a slurry storage tank that drains through the pipe into another slurry storage tank if the other tank is of equal or greater capacity or if the tops of the tanks are at the same level.