Official information is on AIC 09/08 which you can download if you register on the EADS site. Pasted from there (formatting lost):

Aerodrome Location and Elevation Licensee:
Coonagh, Co. Limerick
EICN
52 39 59N
08 40 55W
2NM West of Limerick
6 ft
Mr. D. Lehane
Portdrine,
Cratloe
Co. Clare
061 357126
061 326600
085 1382386
Landing Area Facilities Ground Services
Runway 10/28 Lighting Nil Fuel Mogas
Dimensions 416m x 9m Radio 129.9 MHz Hangar Yes
Surface Bituminous Customs 48 HR Pn
(outwards only)
REMARKS:- Prior Permission Required.
Notes:
i. Only experienced, fully licensed pilots with recent currency in light aircraft short
field techniques will be granted permission to use the airfield.
ii. Prior to use, pilots intending to use Coonagh aerodrome should seek a local
briefing from a flying club instructor through http://www.limerickflyingclub.com
iii. Movement of aircraft confined to runway and taxiway.
iv. Caution : Narrow runway width may give the illusion of longer runway length
and the runway may appear further away then it really is.
v. Obstacles penetrating the 28 and 10 approaches and the transitional surfaces for
Runway 10/28, including a mobile object on the road.
vi. Short field operations are the norm.
vii. All circuits should be flown to the south of the Shannon River at 800 ft avoiding
built up areas. Pilots are reminded of the proximity of the P9 and the Shannon
Control Zone.