This
adran has no associated
Memorandwm Esboniadol
10. If application of organic manure (including livestock manure) or chemical fertiliser to steeply sloping land is proposed, a risk assessment must be undertaken in addition to meeting all relevant requirements of these Regulations. The factors set out in Table 1 shall be considered in making this risk assessment. Table 2 shall be consulted to ascertain whether fertiliser application is permitted.
Table 1
Fertiliser application to steeply sloping ground - risk assessment factors
| Factor | Risk | Liquid organic manures | Solid organic manures | Chemical nitrogen fertiliser |
|---|---|---|---|---|
| Distance from spreading area to waterway other than lake | High | less than 20 m | less than 20 m | less than 5 m |
| Medium | 20-30 m | 20-30 m | 5-10 m | |
| Low | greater than 30 m | greater than 30 m | greater than 10 m | |
| Distance from spreading area to lake | High | less than 30 m | less than 30 m | less than 5 m |
| Medium | 30-40 m | 30-40 m | 5-10 m | |
| Low | greater than 40 m | greater than 40 m | greater than 10 m | |
| Level of fertiliser applied | High | more than 25m3/ha | more than 25 tonnes/ha | greater than 120 kg/N/ha |
| Medium | 15-25m3/ha | 15-25 tonnes/ha | 80-120 kg/N/ha | |
| Low | less than 15 m3/ha | less than 15 tonnes/ha | less than 80 kg/N/ha | |
| Soil conditions | High | very wet, compacted soil | very wet, compacted soil | very wet, compacted soil |
| Medium | wet, poached soil | wet, poached soil | wet, poached soil | |
| Low | dry, firm trafficable soil | dry, firm trafficable soil | dry, firm trafficable soil | |
| Forecast weather conditions for next 48 hours | High | heavy rainfall (more than 4 mm per hour) | heavy rainfall (more than 4 mm per hour) | heavy rainfall (more than 4 mm per hour) |
| Medium | moderate rainfall (0.5 – 4 mm per hour) | moderate rainfall (0.5 – 4 mm per hour) | moderate rainfall (0.5 – 4 mm per hour) | |
| Low | low rainfall (less than 0.5 mm per hour) | low rainfall (less than 0.5 mm per hour) | low rainfall (less than 0.5 mm per hour) | |
| Arable land only - time to incorporation | High | more than 48 hours | more than 5 days | n/a |
| Medium | 12-48 hours | 3-5 days | n/a | |
| Low | less than 12 hours | less than 3 days | n/a |
Table 2
Risk assessment determination
| Risk level | Number of factors applicable | Is the land application of fertiliser permitted? |
|---|---|---|
| High Risk | One or more factors | No |
| Medium Risk | Two or more factors | No |
| One factor | Yes | |
| Low risk | One or more factors | Yes |