The Brechfa Forest West Wind Farm Order 2013

Noise

32.  The level of noise immissions from the combined effects of the wind turbines (including the application of any tonal penalty) when calculated in accordance with the Guidance Notes shall not exceed the values set out in Tables 1(a) and 1(b) below. Noise limits for dwellings which lawfully existed or had planning permission at the date of this Order and which are not listed in Table 1 shall be those of the physically closest location listed in Tables 1(a) and 1(b) below, unless otherwise agreed with the relevant planning authority. The coordinate locations to be used in determining the location of each of the dwellings listed in Tables 1(a) and 1(b) shall be those listed in Table 2.

Table 1(a): The L_A90,10min dB Noise Level Between 23:00 and 07:00 hours. Between 23:00 and 07:00 – Noise level dB L_{A90, 10-minute}

Location	Standardised wind speed at 10 metre height (m/s)
	1	2	3	4	5	6	7	8	9	10	11	12
Lan-Clyn-Adda	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.9	43.3	43.3	43.3
Bryngwili	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	45.1	47.7	47.7
Cwm Llydan Ganol	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	45.1	47.7	47.7
Cwmllydan Isaf	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	45.1	47.7	47.7
Tyllwyd	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	45.1	47.7	47.7
Cwmere	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.9	46.3	46.3	46.3
Ystrad	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0
Gilfach Meredydd	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0
Cae’r-blaidd	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.3	44.6	44.6	44.6
Ffynnon-Las	39.0	39.0	39.0	39.0	39.0	39.0	39.1	39.5	45.0	50.3	50.3	50.3
Blaen-nant-gwyn	37.1	37.1	37.1	37.1	37.1	37.0	37.4	39.8	44.0	45.7	45.6	45.6
Blaen-Gwyddgrug	41.0	41.0	41.0	41.0	41.0	41.0	41.0	41.0	41.9	43.6	44.0	44,0
Gellifelen	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Pen Llwydcoed	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Salach	40.8	40.8	40.8	40.8	40.8	40.8	40.9	41.1	46.7	52.3	52.3	52.3
Hafod	38.9	38.9	38.9	38.9	38.9	38.8	39.1	39.2	39.0	41.1	44.3	47.6
Tirlan	37.2	37.2	37.2	37.2	37.2	37.1	37.5	37.6	37.4	39.2	42.5	45.8
Cwmyronnen Uchaf	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.9	46.3	46.3	46.3
Llwynteg	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.9	43.3	43.3	43.3
Lan Farm	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Blaengwen Farm	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Foel-y-ddafad-ddu	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.9	42.6	43.0	43.0
Coedlannnau Fawr	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Lan-ddu	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.9	42.6	43.0	43.0
Clyn Mawr	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0
Cerbynau	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0	43.0
Bryngolau	42.0	42.0	42.0	42.0	42.0	42.0	42.0	42.1	42.9	44.3	44.8	44.8

Table 1(b): L_A90,10min dB Noise Level at all other times (Between 07:00 and 23:00) – Noise level dB L_{A90, 10-minute}

Location	Standardised wind speed at 10 metre height (m/s)
	1	2	3	4	5	6	7	8	9	10	11	12
Lan-Clyn-Adda	37.0	37.0	37.0	37.0	37.0	37.0	37.8	40.0	42.6	44.8	44.8	44.8
Bryngwili	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	42.1	45.2	45.2	45.2
Cwm Llydan Ganol	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	42.1	45.2	45.2	45.2
Cwmllydan Isaf	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	42.1	45.2	45.2	45.2
Tyllwyd	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	42.1	45.2	45.2	45.2
Cwmere	40.0	40.0	40.0	40.0	40.0	40.0	40.8	43.0	45.6	47.8	47.8	47.8
Ystrad	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Gilfach Meredydd	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Cae’r-blaidd	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.1	44.9	49.1	49.1	49.1
Ffynnon-Las	36.0	36.0	36.0	36.0	36.0	36.0	36.6	41.0	45.7	49.2	49.2	49.2
Blaen-nant-gwyn	34.1	34.1	34.1	34.1	34.1	35.1	37.7	40.6	43.6	45.3	45.2	45.2
Blaen-Gwyddgrug	38.0	38.0	38.0	38.0	38.0	38.0	38.8	41.9	45.0	46.6	46.6	46.6
Gellifelen	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0
Pen Llwydcoed	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0
Salach	37.8	37.8	37.8	37.8	37.8	37.8	38.4	42.6	47.4	51.2	51.2	51.2
Hafod	35.9	35.9	35.9	35.9	35.9	35.8	36.1	37.6	40.7	42.5	44.2	44.9
Tirlan	34.2	34.2	34.2	34.2	34.2	34.1	34.5	36.0	39.1	40.7	42.4	43.0
Cwmyronnen Uchaf	40.0	40.0	40.0	40.0	40.0	40.0	40.8	43.0	45.6	47.8	47.8	47.8
Llwynteg	37.0	37.0	37.0	37.0	37.0	37.0	37.8	40.0	42.6	44.8	44.8	44.8
Lan Farm	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0
Blaengwen Farm	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0
Foel-y-ddafad-ddu	37.0	37.0	37.0	37.0	37.0	37.0	37.8	40.9	44.0	45.6	45.6	45.6
Coedlannnau Fawr	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0	37.0
Lan-ddu	37.0	37.0	37.0	37.0	37.0	37.0	37.8	40.9	44.0	45.6	45.6	45.6
Clyn Mawr	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Cerbynau	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0	40.0
Bryngolau	39.0	39.0	39.0	39.0	39.0	39.0	39.9	42.9	46.0	47.3	47.3	47.3

Table 2: Coordinate locations of the properties listed in Table 1

ID	Property	Easting	Northing
1	Lan-Clyn-Adda	245784	231373
2	Bryngwili	246048	229746
3	Cwm Llydan Ganol	247197	229299
4	Cwmllydan Isaf	247614	229553
5	Tyllwyd	248641	229516
6	Cwmere	245956	230398
7	Ystrad	249709	229817
8	Gilfach Meredydd	251113	232339
9	Cae’r-blaidd	251814	233437
10	Ffynnon-Las	250624	234627
11	Blaen-nant-gwyn	249241	235725
12	Blaen-Gwyddgrug	248357	235095
13	Gellifelen	247258	234424
14	Pen Llwydcoed	245672	232726
15	Salach	250594	234413
16	Hafod	251467	234527
17	Tirlan	251545	234742
18	Cwmyronnen Uchaf	246860	230486
19	Llwynteg	245365	231766
20	Lan Farm	246703	234713
21	Blaengwen Farm	246044	233876
22	Foel-y-ddafad-ddu	247835	235416
23	Coedlannnau Fawr	247034	234825
24	Lan-ddu	247586	235215
25	Clyn Mawr	249920	230554
26	Cerbynau	249953	230245
27	Bryngolau	248711	235140

Note to Table 2: The geographical coordinate references are provided for the purpose of identifying the general location of dwellings to which a given set of noise limits applies.