Corrib Water Management Unit Action Plan River water bodies labelled on map

Transcription

1 Corrib Water anagement Unit Action lan River water bodies labelled on map Corrib Water anagement Unit Area River Basin District ain Counties umber of river water bodies umber of lake water bodies 1,146 km 2 Western RBD alway/ayo Sectoral Total hosphorus Source Sectoral (This does Total not hosphorus imply impact) Source (This does not imply impact) % ARICULTURE AQUACULTURE BACKROUD FORESTR USEWE_ID USEWERED URBA WWT EATLAD Ordnance Survey Ireland. All rights reserved. Licence number 2010/15CCA/alway County Council. arch 2010

2 Corrib Water anagement Unit Action lan Lake water bodies labelled on map Corrib Water anagement Unit Area River Basin District ain Counties umber of river water bodies umber of lake water bodies 1,146 km 2 Western RBD alway Sectoral Total hosphorus Source Sectoral (This does Total not hosphorus imply impact) Source (This does not imply impact) % ARICULTURE AQUACULTURE BACKROUD FORESTR USEWE_ID USEWERED URBA WWT EATLAD Ordnance Survey Ireland. All rights reserved. Licence number 2010/15CCA/alway County Council. arch 2010

3 Corrib Water anagement Unit Action lan ROTECTED AREAS F 1: Catchment Owenriff SACs -12: alway Bay Complex, Lough Corrib, Ballymaglancy Cave, Cloughmoyne, Clyard kettle-oles, Shrule Turlough, ortnandarragh Limestone avement, Ross Lake and Woods, ochorha Lough, aumturk ountains, Connemara Bog Complex, Kildun Souterrain. SAs -2: Inner alway Bay SA and Lough Corrib SA. As - 2 Oughterard District Bog A, oycullen Bogs A pas -27: aumtrasna ountain Complex, aumturk ountains, Altore Lake, Rathbaun Turlough, Ballymaglancy Cave - Cong, Lough Corrib, Killower Turlough, Turlough O'all, Belclare Turlough, Connemara Bog Complex, Lough acket, Knockmaa ill, Rostaff Turlough, Castle ackett Souterrain, Turlough onaghan, Turloughcor, Oughterard ational School, ortnandarragh Limestone avement, Ross Lake And Woods, Drimcong Wood, Ballycuirke Lough, Killarainy Lodge, oycullen, alway Bay Complex, Clyard Kettle-oles, ocorha Lough, Shrule Turlough, Cloughmoyne. utrient Sensitive Surface Water (UWWT Directive) - none Drinking waters -2 Upper and Lower Lough Corrib. Bathing Waters - one. Shellfish Waters - one. STATUS/IACTS Overall status Approximately 66% of rivers within the WU are at high or good status with the remaining 34% at moderate or poor status. There are 20 lakes within the WU with 60 % at igh or good status and 40% at moderate status. Lough Corrib Upper and Lower is classified at moderate status. Status elements Q score (macroinvertebrates) and fish status dictates majority of river waterbody status within the WU. There is no chemical monitoring data available. There are 9 lakes out of the 20 within the WU that are monitored, for those lakes classified as moderate, introduced fish species predominantly drive the status classification. acrophytes, nutrients, chlorophyll status and expert opinion also drive the status classification mainly for the good or high status classification. Status of the main rivers within the Corrib WU The Corrib WU includes Lough Corrib and the following principal rivers: Bealnabrack, Failmore, Joyce s rivers flowing into the northwestern part of the lake, the Cornamona river (Dooghta) also flowing in from the north west, the Folore, Owenree and Owenwee rivers draining Loughanillan and Tawnabeg Lough into the Corrib, the Owenriff (including the Bunowen) draining Loughs Bofin, Agraffard and Lettercrafroe through Oughterard, Ballycuirke river and lake draining into lower Lough Corrib, the Corrib river draining Lough Corrib into the Corrib Estuary in alway Bay and the the Cregg and Black (Shrule) rivers flowing in from the east. The most recent EA status classifications for these rivers indicates that only 8% of all river channel length is of igh status and 54% is classed as ood. The remainder are classed as oderate (19%) or oor (19%). BEALABRACK: The Bealnabrack river main channel is classed as oor status (based on biological monitoring). In its upper reaches, which drain the aumturk ountains, the main channel is generally ood as is its upper tributary the lenglosh river although one small section of this is at oor status. The Failmore river, which is a tributary of the Bealnabrack joining it shortly before Lough Corrib has been classed as oderate in its lower reaches but igh and ood in it supper reaches. Joyce s river has also largely been classed as ood. CORAOA (DOOTA): This river flows into Lough Corrib through Cornamona, the river is at ood status along its length and at igh status in its upper reaches. OWERIFF (CORRIB): The Owenriff river catchment includes a significant portion of the Connemara Bog Complex SAC/A in its upper catchment and the Lough Corrib SAC in the lower main river channel. The Lough Corrib csac in the Owenriff river has been designated for the Freshwater earl ussel species protected under Annex II of the EU abitats Directive. This species is particularly sensitive to silt, turbidity and nutrient enrichment. Filamentous algae are also causing ongoing problems particularly in the Oughterard stretch of the river. The river has seen a decline in the F population since 2004 and a specific Sub-basin Freshwater earl ussel lan for this river catchment has been prepared to protect the F species. The most recent EA biological assessment of the river indicates the following: The Derrygauna river which flows into Loughaphreagaun in the upper catchment is classed at oderate status due to the unfavourable conservation status of the F population located there. The lashanasmearany river flowing between Loughaphreagaun and Lough Bofin has been classed as igh status. The main Owenriff channel between Lough Bofin and Lough Adrehid, between Adrehid and Agraffard and down to Oughterard has been classed as oderate again due to the unfavourable conservation status of the F. Biological sampling of other indicative species indicates that the Owenriff is generally good with good fish stock but the overriding factor in determining its status is the conservation status of the F. The upper reaches of the lengawbeg, draining Lettercraffroe Lough is classed as igh status as are the smaller tributaries flowing from Shannaghree Lough and through Rusheeny townland. The Bunowen, another tributary of the Owenriff was classed as oderate. BALLCUIRKE : The Ballycuirke river drains out of Ballycuirke Lough into the Lower Corrib. The Lough Kip river flowing into Ballycuirke Lough is classed as ood (based on the recent EA biological monitoring). owever, the Ballycuirke Lough stream which flows from Ross lake through a series of small lakes to Ballycuirke Lough is also classed as oor (based on extrapolated land use impact). The Knockbane river which flows into Ross Lake is classed as ood and the small river which flows into Ross Lake from Knockafrin Lough is classed as oderate. The Ballycuirke river flows into the Old Corrib River channel and joins the main Corrib river at the Friars Cut. This section of the river is classed as oor (on the basis of biological assessment). CORRIB River: The main channel of the Corrib river from Lough Corrib to the Corrib Estuary is classed as at ood status (biological assessment). The Terryland river which flows out of the Corrib river at Jordans Island and flows underground at Castlegar is classed as oor status. This river is believed to emerge at Lough Atalia and at Oranmore. BLACK (SRULE): The Black (Shrule) River is classed as ood over most of its length with two small sections classed as oderate (At Carrowmore townland and flowing into and out of Lough Lee s small lake) EADFORD River: This river flowing through eadford is classed as oderate based on recent biological monitoring. CRE River: This river, which flows into Lower Lough Corrib, is classed as ood status in general with one small tributary (Waterdale river) classed as oderate.

4 Corrib Water anagement Unit Action lan RESSURES/RISKS utrient sources oint pressures Over 90% of Total hosphorus is diffuse in nature with agriculture accounting for over 80% of T. WWT 8: eadford WWT, oycullen WWT, Oughterard WWT, Cong WWT, Shrule WWT. Kilmaine WWT, Cross WWT and utton Island alway City. The eale WWT will be constructed in 2010 (funding dependant from DEL). Section 4 Licensed Facilities - 11 all within the alway portion of the WU) IC Licensed Facilities -4: Jennings Wholesale, lanbia Farms Ltd, ewbrook Ltd, Earrai Coillte Chonnacht Teoranta. WT 4: Cornamona WT, Luimnagh WT (Tuam RWSS), Oughterard WT, Cong WT. There are some roup Water Schemes abstractions within the ayo portion of the WU Wastewater Treatment lants (WWT) and Industrial Discharges Quarries, ines & Landfills Agriculture eadford WWT - ew plant in place since oycullen WWT - ensure capacity of treatment plant is not exceeded. Oughterard WWT - risks to water quality relate to insufficient WWT capacity. A new treatment plant, capacity 4,750 p.e., to be completed by lant requires capital works Cong WWT - lant requires implementation of performance management system. Shrule WWT - lant requires implementation of performance management system. Kilmaine WWT ensure capacity of treatment plant is not exceeded. Section 4s- o risks o perceived risks from ayo WWT s within WU. Quarries - 8: 5 quarries in alway and 3 in ayo. 3 water bodies at risk from quarries: IE_WE_30_975, IE_WE_30_3419, IE_WE_30_2290. Landfills none ines -none 8 water bodies have been determined to be at risk from agriculture within WU : IE_WE_30_609, IE_WE_30_975, IE_WE_30_1481, IE_WE_30_1964, IE_WE_30_3484, IE_WE_30_3219, IE_WE_30_3296, IE_WE_30_1231. On-site systems Forestry There are 11,021 OSWTS within the WU Boundary, 10,867 OSWTS lie within 78 river water bodies. Within the river water bodies 3,671 OSWTS constitute a potential risk to waters because of where they are sited and constitute a risk to 11 water bodies. The remainder of OSWTS lie in the coastal area between the river water bodies and the seashore and may pose a risk to estuarine and coastal water quality and protected areas. At risk RWB s WE_30_609, WE_30_1952, WE_30_2290, WE_30_1481, WE_30_1964, WE_30_2681, WE_30_2025, WE_30_3484, WE_30_1966, WE_30_3542, WE_30_1534. There are 8 water bodies determined to be at risk from forestry within WU : IE_WE_30_1096,IE_WE_30_2037, IE_WE_30_2035, IE_WE_30_2684, IE_WE_30_3396,IE_WE_30_296, IE_WE_30_1531, IE_WE_30_2013 Dangerous substances There are 2 water bodies that may be at risk from sheep dipping activities within WU: IE_WE_30_3219, IE_WE_30_1231 orphology Abstractions 19 water bodies have been determined to be at risk from orphology within WU: IE_WE_30_609, IE_WE_30_975, IE_WE_30_3419, IE_WE_30_1952, IE_WE_30_1481, IE_WE_30_1964, IE_WE_30_256, IE_WE_30_2681, IE_WE_30_1903, IE_WE_30_2025, IE_WE_30_3484, IE_WE_30_2617, IE_WE_30_2928, IE_WE_30_1151, IE_WE_30_1966, IE_WE_30_3219, IE_WE_30_3296, IE_WE_30_1231, IE_WE_30_3520 There are 6 water bodies (all part of the Corrib) that have been determined to be at risk from abstraction within the WU; IE_WE_30_609, (County alway), IE_WE_30_3419, IE_WE_30_3484, (County alway) IE_WE_30_975, IE_WE_30_2013, (County alway) IE_WE_30_2681 (County alway) Other o WB. 1 AWB within WU - Eglinton Canal IE_WE_AWB_EC which flows through the waterbody IE_WE_30_3419.

5 Corrib Water anagement Unit Action lan SELECTED ACTIO RORAE B All relevant basic measures and general supplementary measures/surveys apply oint Sources Diffuse Sources The UWWTD Regulations will apply to the WWT within the WU and the Water ollution Acts and IC Directive will apply to the industrial discharges. Oughterard WWT has been identified as a priority for Water Framework Directive purposes. Oughterard WWT has insufficient WWT capacity and has insufficient assimilative capacity in the receiving water. Investigation of sewage and trade discharges and licence review where appropriate will also be carried out. The following oint source supplementary measures have been suggested for certain river water bodies within the WU for municipal and industrial pressures: Development control, investigate wastewater, verification of risk, decision making tools, and relocation of outfall. articular measures will be required to address diffuse pollution pressures from agriculture such as the ood Agricultural ractices Regulations investigations and enforcement. Supplementary measures apply within WU for septic tanks (OSWWTS) including compliance with the new binding EA Code of ractice for Wastewater Treatment Systems and Disposal Systems. In relation to existing unsewered properties, improvements are required regarding the operational performance, maintenance and monitoring arrangements of septic tanks and other on-site waste water treatment systems serving such properties. In response, the inister for Environment, eritage and Local overnment intends to bring forward and consult on proposals for legislation during It is intended that this legislation will be in place by quarter 3 of The proposed legislation will provide standards for the performance, operation and maintenance of septic tanks and similar on-site wastewater treatment systems. It will also provide for the monitoring and inspection of the performance of such treatment systems and will set out the responsibilities of households served by those systems, including requirements to carry out remedial actions where necessary. OBJECTIVES ood status Alternative Objectives eavily odified/artificial water bodies - 1 AWB within WU - Eglinton Canal Extensions Agriculture (hosphorous Karst roundwater) () IE_WE_30_609, IE_WE_30_975, IE_WE_30_1481, IE_WE_30_1964, IE_WE_30_3484, IE_WE_30_3296, IE_WE_30_3542, IE_WE_30_2290, IE_WE_30_2013, IE_WE_30_3219, IE_WE_30_3247, IE_WE_30_1231, IE_WE_30_1534, IE_WE_30_1904 Extension orphology (Overgrazing) () IE_WE_30_3107, IE_WE_30_2094 Extensions for Forestry (2027) IE_WE_30_2013 Extensions required for wastewater infrastructure to be put in place () IE_WE_30_3396 Extensions for Status Recovery due to prolonged timescale for improvement due to measures to manifest (oor and Bad status water bodies) () IE_WE_30_2862 Forestry supplementary measures include the following supplementary measures for both eutrophication and sedimentation pressures: riparian zone management, enhanced sediment control and drainage management. Other The Freshwater earl ussel Sub Basin anagement lan and proposed measures will key to the selected action programme for the Owenriff. Overgrazing rehabilitation measures to assist recovery from impact due to channelisation on WE_30_3107, WE_Corrib_Bealnabrack_Breenaun, and WE_30_2094, WE_Corrib_Joyce's_Derreen(RossBy)

6 Corrib Water anagement Unit Action lan - Rivers Status of river water bodies within the WU River water body status ( % number) 13% 21% River water body status ( % Length) 19% 8% 21% 19% 54% 45% igh ood oderate oor Bad igh ood oderate oor Bad Biological Elements IE_WE_Corrib Supporting Elements rotected Areas ember State Code onitored (Extrapolated ) Donor Waterbody acroinvertebrates (Q) FreshWater earl ussel Fish hytobenthos (Diatoms) orphology Specific olutants hysio-chemical Ecological Status Chemical Status Special Area of Conservation Special rotection Area utrient Sensitive Waters Drinking Water Objective Date objective to be achieved WE_30_1024 WE_30_3093 WE_30_1054 WE_30_993 WE_30_1072 WE_30_1351 ES WE_30_1096 WE_30_1151 WE_30_1231 WE_30_1933 WE_30_1286 WE_30_1351 ES WE_30_1287 WE_30_1351 ES WE_30_1299 WE_30_1351 ES WE_30_1306 WE_30_1364 WE_30_1464 ES WE_30_137 WE_31_1323 ES WE_30_1380 WE_32_1767 WE_30_1463 WE_30_1464 ES

7 Corrib Water anagement Unit Action lan - Rivers IE_WE_Corrib Biological Elements Supporting Elements rotected Areas ember State Code onitored (Extrapolated ) Donor Waterbody acroinvertebrates (Q) FreshWater earl ussel Fish hytobenthos (Diatoms) orphology Specific olutants hysio-chemical Ecological Status Chemical Status Special Area of Conservation Special rotection Area utrient Sensitive Waters Drinking Water Objective Date objective to be achieved WE_30_1481 WE_30_1531 WE_30_1531 WE_30_1534 WE_30_1787 ES WE_30_1900 WE_30_1903 WE_30_2928 WE_30_1904 WE_30_1952 WE_30_1966 WE_30_196 WE_30_1096 WE_30_1964 WE_30_2353 WE_30_1966 WE_30_201 WE_30_2012 WE_30_2025 WE_30_ WE_30_202 WE_30_2025 WE_30_2035 ES WE_30_2037 ES WE_30_2092 WE_30_1464 ES WE_30_2094 WE_30_2197 WE_31_163 WE_30_2283 WE_31_1323 ES WE_30_2290 WE_30_1534 WE_30_256 WE_30_2598 WE_30_2601 WE_30_201 WE_30_2617 WE_30_2928 WE_30_262 WE_30_2681 WE_30_2684 ES WE_30_2703 WE_30_2709

8 Corrib Water anagement Unit Action lan Rivers (cont) IE_WE_Corrib Biological Elements Supporting Elements rotected Areas ember State Code onitored (Extrapolated ) Donor Waterbody acroinvertebrates (Q) FreshWater earl ussel Fish hytobenthos (Diatoms) orphology Specific olutants hysio-chemical Ecological Status Chemical Status Special Area of Conservation Special rotection Area utrient Sensitive Waters Drinking Water Objective Date objective to be achieved WE_30_2731 WE_32_1767 WE_30_2786 WE_30_993 WE_30_2788 WE_30_202 WE_30_280 ES WE_30_2818 WE_30_2819 WE_30_2703 WE_30_2862 WE_32_678 WE_30_2928 WE_30_296 ES WE_30_3016 WE_30_2703 WE_30_3093 WE_30_3107 WE_30_3143 WE_30_2681 WE_30_3173 WE_30_3219 WE_30_1933 WE_30_3247 WE_30_1534 WE_30_326 WE_30_3278 WE_30_1531 WE_30_3296 WE_30_2353 WE_30_3351 WE_30_1464 ES WE_30_3396 WE_30_3403 WE_32_637 WE_30_3419 WE_30_3479 WE_30_2684 WE_30_3484 WE_30_3520 WE_30_2928 WE_30_3542 WE_30_3396 WE_30_3594 WE_30_993 WE_30_609 WE_30_2353 WE_30_975 WE_30_3484 WE_30_993

9 Corrib Water anagement Unit Action lan - Lakes Status of lake water bodies within WU Lake water body status (o. %) Lake water body status (Area %) 0.2% 1.5% 40% 45% 98.2% 15% igh ood oderate oor Bad igh ood oderate oor Bad Biological Elements IE_WE_Corrib Supporting Elements rotected Areas ember State Code ame onitored (Extrapolated ) acrophytes Chlorophyll Fish orphology utrient Enrichment hysico Chemical Ecological Status Chemical Status Special Area of Conservation Special rotection Area utrient Sensitive Waters Bathing Water Drinking Water Objective Date objective to be achieved WE_30_215 Adrehid ( Lough ) ES WE_30_290 WE_30_301 Carras Lough WE_30_303 Kip ( Lough ) ES WE_30_313 Loughaunierin ES WE_30_315 Buffy Lough WE_30_322 Lee ( Lough ) WE_30_325 Acogga ( Lough ) ES WE_30_326 ES WE_30_334 Agraffard ( Lough ) ES WE_30_335 Bofin ( Lough ) ES WE_30_336 arkyflaherty ( Lough ) WE_30_340 Bhaile Ui Choirc ( Loch ) WE_30_343 aumwee Lough ES WE_30_344 Lettercraffroe Lough WE_30_345 Ross Lake WE_30_346 Loughaphreaghaun WE_30_348 Loughanillaun ES WE_30_666a Corrib Lower (Lough) WE_30_666b Corrib Upper (Lough)