Water Quality of Riverine Special Areas of Conservation (SACs) across Wales (2006-2012).

This data collection was required as part of the water quality assessment of various Special Areas of Conservation (SAC) for the monitoring round and report cycle 2006 to 2012. Water quality targets for designated riverine features are specified under the JNCC CSM Guidance. The targets are based on routine water quality monitoring and subsequent reporting. Water quality targets are assessed based on the chemistry, biology, phosphate, suspended solids and un-ionized ammonia. The dataset details the results of water quality target testing for the following rivers and associated SACs: - Afon Gwyrfai a Llyn Cwellyn SAC - Afon Eden and Cors Goch Trawsfynydd SAC - River Dee and Bala Lake / Afon Dyfrdwy a Llyn Tegid SAC - Afon Tywi / River Tywi SAC - Afon Teifi / Afon Teifi - Afonydd Cleddau SAC - River Usk SAC - River Wye SAC - Afon Glaslyn (Meirionnydd Oakwoods SAC)

Identifier: NRW_DS115830

Alternative Title

Water Quality Assessments for River Special Areas of Conservation: Second Habitats Directive Reporting Round (2006-2012)
Ansawdd dwr Ardaloedd Cadwraeth Arbennig (ACA) afonol ledled Cymru (2006-2012).

Metadata Language: English

Lineage: The water quality was tested based on EA General Quality Assessment (GQA) which has 4 classifications; chemistry, biology, nutrients and aesthetics. Each classification is made up of 6 grades from A (very good) to F (bad). The water quality targets can vary depending on the sensitivity of the species or habitat, and whether they are mandatory or discretionary targets. Chemistry Classification: based on dissolved oxygen, biochemical oxygen demand and ammonia. Sampling: occurred 12 times a year over 3 years Biology Classification: Based on macro-invertebrate communities. Sampling: Kick samples collected in spring and autumn, in one year out of every three. Phosphate Classification: Based on Soluble Reactive Phosphorus (SRP). Sampling: Monthly basis at chemical sampling points. Suspended Solids Classification: Based on the Freshwater Fish Directive. Sampling: Based on annual mean suspended solids. Uni-ionised ammonia Classification: Measured against the target for the river habitat as a 95-percentile. Acidity Acid sensitive units have been identified and assessed using a risk assessment based on various data sources including the Acid Water Indicator Community (AWICS) invertebrate monitoring tool, UK pH and ANC standards, and critical load exceedance maps.

Dataset Reference Date (Publication): 2013-03-31

Temporal Extent

Begin date: 2007-01-01

End date: 2011-12-31

Topic category

Inland waters

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Environment Agency (EA)

Millbank Tower, 25th Floor, 21//24 Millbank, London, SW1P 4XL, England

http://www.environment-agency.gov.uk/

Extent

Geographic Extent: Wales (WLS)

Format Type and Description

Documents Documents ()

Specification

[A] Report in .doc and .pdf format [B] Water quality results details of sampling location for all years .xls format

Data quality

Quality Scope: Dataset

Conformity: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation
Degree: false

Lineage: The water quality was tested based on EA General Quality Assessment (GQA) which has 4 classifications; chemistry, biology, nutrients and aesthetics. Each classification is made up of 6 grades from A (very good) to F (bad). The water quality targets can vary depending on the sensitivity of the species or habitat, and whether they are mandatory or discretionary targets. Chemistry Classification: based on dissolved oxygen, biochemical oxygen demand and ammonia. Sampling: occurred 12 times a year over 3 years Biology Classification: Based on macro-invertebrate communities. Sampling: Kick samples collected in spring and autumn, in one year out of every three. Phosphate Classification: Based on Soluble Reactive Phosphorus (SRP). Sampling: Monthly basis at chemical sampling points. Suspended Solids Classification: Based on the Freshwater Fish Directive. Sampling: Based on annual mean suspended solids. Uni-ionised ammonia Classification: Measured against the target for the river habitat as a 95-percentile. Acidity Acid sensitive units have been identified and assessed using a risk assessment based on various data sources including the Acid Water Indicator Community (AWICS) invertebrate monitoring tool, UK pH and ANC standards, and critical load exceedance maps.

Keywords

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

river Gwyrfai (afon Gwyrfai)
River Wye (Afon Gwy)
Afon Eden
river Tywi (afon Tywi)
Afonydd Cleddau
River Usk
Special Areas of Conservation (SAC) - SAC monitoring
water quality monitoring

Type: Theme

Citation

Date (Publication): 2023-12-31

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

NRW Related Title: Water quality assessments for river special areas of conservation : second habitats directive reporting round ( 2006 - 2012 )

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: There are no access restrictions to this data. NRW may release, publish or disseminate it freely.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © CNC/NRW There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313135383330 XML

Metadata Language: English

Resource type: Dataset

Metadata Date: 2024-05-31T09:16:17.657Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

Water Quality of Riverine Special Areas of Conservation (SACs) across Wales (2006-2012).

Identification

Temporal Extent

Extent

Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body