The Costs of Polluted Coastal Waters Considering the Socio-Economic Implications of Poor Bathing Water Quality Dr Robert Keirle Pollution Programme Manager Marine Conservation Society
Presentation Overview • • • •
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Introduction The Marine Conservation Society Weston-super-Mare’s 3 designated beaches 3 main threats to bathing water quality: • Sewage • Diffuse pollution (urban) • Diffuse pollution (agricultural) Implications for tourism Proposed Severn Barrage
Pollution
Current Bathing Water Directive (76/160/EEC) • •
•
Sets minimum legal requirements for water quality & sampling frequency Mandatory standard: • At least 95% of samples must contain <10,000 TC/100ml & <2,000 FC/100ml Guideline standard: • At least 80% of samples must contain <500 TC/100ml & <100 FC/100ml • At least 90% of samples must contain <100 faecal streptococci/100ml
Bathing Waters in the UK •
597 coastal or estuarine waters
Country
2010
2011
•
12 inland freshwater sites
England
413
414
Wales
80
88
Scotland
82
83
Northern Ireland
24
24
UK Total
599
609
•
Implications of climate change? • More freshwater sites • Hotter, drier summers & milder, wetter winters • More intense, localised storms
UK compliance with Mandatory standard
UK compliance with Guideline standard
Weston-super-Mare’s 3 Designated Beaches • • • • • •
Sand Bay, Weston Main & Uphill Slipway Sampled approximately once a week, between May and September No routine sampling undertaken outside this period Is this sufficient to capture transient pollution events? Individual samples are designated as either ‘fail’, ‘minimum’ or ‘higher’ In 2015 the revised BWD comes fully into force
Photo caption
Bathing Water Profiles for Weston-super-Mare
By law, the relevant environmental regulator has to produce a written summary (plus additional maps) for each designated BW: • EA’s DNA tracing technique shows faecal contamination is both human & animal in origin • Faecal contamination from the River Axe catchment • Historic concerns relating to W-s-M sewage treatment works • Improvements have been made to CSOs and EOs, particularly at the Black Rock outfall
Variation in BW Quality 2002-2011 2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
Sand Bay
H
M
H
H
M
H
M
H
H
H
Main
M
M
M
M
M
M
M
M
M
M
Uphill Slipway
M
M
M
M
M
M
M
M
M
M
Key:
M H
Minimum Higher
Revised Bathing Water Directive
This will have four classifications: • ‘Excellent’ (~2x the current ‘guideline’ standard) • ‘Good’ (~’guideline’ standard) • ‘Sufficient’ (~2x current ‘sufficient’ standard) • ‘Poor’ Again, these standards are retrospective, but based on 4 years’ worth of data, and not the current 1 year
Projected Revised Bathing Water Classifications in England & Wales – October 2011 (October 2010) • • •
Sand Bay – GOOD (GOOD) Weston Main – SUFFICIENT (POOR) Uphill Slipway – POOR (POOR)
•
If a beach fails for 5 consecutive years, permanent signage has to be erected by law advising beach goers not to enter the sea Just imagine the impact this would have on W-s-M’s tourist industry!
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3 Main Threats to Bathing Water Quality •
• •
Sewage • Misconnections; combined sewer overflows; inadequate/insufficient waste-water treatment Diffuse pollution from urban areas Diffuse pollution from agricultural areas
Implications for Tourism •
• •
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The Grand Pier: • Rebuilt at a cost of £39million • Opened October 2010; closed…? Further proposals to development WsM sea front Disconnect between the built environment & the natural environment • Inversely proportional relationship between the size of the resort & the importance of the natural environment Tourists will vote with their feet and visit a cleaner resort!
Case Study: Blackpool • •
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Blackpool has a marine frontage of 11.25km Regeneration scheme has included: • South Shore & Red Bank Road – £12million • Festival Headland shared space project – £14million • Sandcastle Centre & North Pier – £62million • Total cost of Blackpool regeneration scheme – £250million Amount spent on natural environment: • NOTHING!
Proposed Severn Barrage: Clear Blue Thinking... • • • •
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2nd greatest tidal range after the Bay of Fundy in Canada 16km concrete wall effectively damming the estuary Tourist boat trips/increased recreational use of the sea? Energy removal may lead to great sedimentation clearer water? Clearer water greater UV penetration safer water? Rising groundwater levels? infiltration of sewerage system increased CSO spill frequency? Cellar flooding?
Thanks for your attention! Any questions? •
My contact details: Marine Conservation Society, Unit 3, Wolf Business Park, Alton Road, Ross-on-Wye, Herefordshire, HR9 5NB 01989 566107 Robert.Keirle@mcsuk.org