1. Meeting the Challenges of the Changed Economic Environment Annual Conference September 2009 Water Services Training Group Regional Training Centre, Ballycoolin June 28 th 2011

2. Meeting the Challenges of the Changed Economic Environment Annual Conference September 2009 Integrated Constructed Wetlands A Case Study, Glaslough, Co. Monaghan Dan Doody Senior Engineer (Retired) Monaghan County Council

3. Glaslough Location Map

4. Glaslough Village

5. ICW at Glaslough, Co. Monaghan

7. Glaslough Why an Integrated Constructed Wetland?

8. Glaslough New Treatment Works Required Pre 2001 – ‘Combined’ collection system delivered effluent to a 1940’s plant (discharging to Glaslough Stream) - overloaded. MCC prosecuted by ERFB Preliminary Report by Nicholas O’Dwyer 1989350peIR£205k Jan 2002650pe€950K (2008650pe€1.5m)

9. Glaslough 2001 Discharge Pipework Extended Temporary FM Environmental Package Plant (350pe) installed discharging to the Mountain Water River

10. Glaslough/Castle Leslie ICW May 2003 – Dr Rory Harrington, DEHLG & Paul Carroll, Waterford Co Co (invited by Billy Moore, Co Eng MCC) – Presentation in Monaghan on ICWs Aug 2003 – Samantha Leslie, Dan Doody & Mark Johnston MCC – Field trip to Anne Valley in Waterford to view working ICWs

11. Glaslough/Castle Leslie ICW DEHLG Funding Measures Small Schemes pre 2007€635k post 2007€1m Major Schemespre 2007over €635K post 2007over €1m

12. Glaslough/Castle Leslie ICW Major Scheme Measures – Priority to larger towns ( Monaghan, Carrickmacross, Castleblayney, Clones, & Ballybay ) Small Schemes Solution Sought – Capital Cost less than €1m – ICW??

13. Glaslough/Castle Leslie ICW Single major issue – Effluent Quality Castle Leslie – Land Ownership, Amenity Value & Use (related to Castle/Hotel & Equestrian Centre)

14. Glaslough/Castle Leslie ICW 2004 – 2006 Design, Land Lease, Tree felling, Part 8 Planning, Site Investigation, Tender Docs. Oct 2006 Construction commenced (Contractor Eamon Sherry)

15. Glaslough/Castle Leslie ICW Q2 – Q3 2007 Earthworks, Planting (by Aila Carty, Vesi Environmental, Little Island, Cork) Ductwork, Cabling, Sampling & Monitoring Equipment) 26 th Oct 2007 ICW Commissioned. 2008 Finishing Works, Riding Trails etc.

16. Glaslough/Castle Leslie ICW  Design 1750pe  (Current Load1400pe)  Footprint Area6.74ha  Water Surface Area3.25ha  Capital Cost€770k Meeting the Challenges of the Changed Economic Environment Annual Conference September 2009

17. Costs for Glaslough ICW Total cost including land€770k Less monitoring€144K Less exceptional costs, riding trails, bridges etc€220k Net cost of wetland€406k Budget cost for conventional waste treatment plant for 650pe is €1.5m

18. PLANOFICW

19. Glaslough ICW - POND 1

24. Right: Eamon De Butlier with Dr. R. Harrington Left: Minister Gormely visits ICW, June 2008

26. PLANOFICW

29. Stroll from Castle Leslie to… Integrated Constructed Wetland

30. Equestrians using Riding Trails on Embankments of Ponds

32. Monitoring equipment.

33. SCADA layout of ponds

34. Performance of Glaslough ICW ParameterInfluent (mg/l) Effluent (mg/l) Removal Efficiency (%) UWWD* (mg/l) BOD 5 9976.499.425 COD14444597125 TSS29521899.435 Total N500.499.215 Total P9.230.1498.52 Ammonia36.70.2399.4 Nitrates5.50.493 MRP40.0299.5 *UWWD = Urban Waste Water Directive NOTE: In the Consultation Paper on Environmental Objectives (Surface Water ) Regulations 2008 the level of Molybdate Reactive Phosphorus in river water body is 0.025 mgP/l for High Status and 0.035 mg p/l for Good Status.

35. Discharges Glaslough ICW ‘The Pure Drop’ (Autumn 2010)No Discharge (1 May 2011)

36. Quality of Receiving Waters Glaslough ICWMountain River ParameterInfluent (mg/l) Effluent (mg/l) Upstream (mg/l) Downstrea m (mg/l) UWWD * (mg/l) BOD 5 9976.42.352.3925 COD14444529.7429.33125 TSS2952180.510.6135 Total N500.43.472.7315 Total P9.230.140.15 2 Ammonia36.70.230.360.37 Nitrates5.50.40.910.88 MRP40.020.10.08 *UWWD = Urban Waste Water Directive

37. CELL NUMBER SAMPLING POINT DATE SAMPLED ECOLI (Fecal Coliforms) per 100 mls TOTAL COLIFORMS per 100 mls ACCUMULATIVE PERCENTAGE OF ICW AREA Sludge pondINLET20-Jan-09559950>12098001.2 1INLET20-Jan-0986640>24196015 2INLET20-Jan-09209244839229 3INLET20-Jan-09292107467.5 4INLET20-Jan-09<106396 5OUTLET20-Jan-09<549100 Mountain River Upstream RIVER20-Jan-096982897 Mountain River Downstream RIVER20-Jan-094292737.5 Leixslip raw water – total coliforms/100mls: Range 52 to 41,000 for 2008 – faecal coliforms/100mls: Range 8 to 17,200 for 2008 – faecal coliforms/100mls: Range 8 to 17,200 for 2008 ICW Coliform Results (20/01/09)

38. Comparison ICW Glaslough (1750pe) v Emyvale (2000pe) *UWWD = Urban Waste Water Directive GLASLOUGH ICWEMYVALE STWUWWD ParameterInfluent mg/l Effluent mg/l to river Removal efficiency % Influent mg/l Effluent mg/l Removal efficiency mg/l Total N 46.61.429773.75167815 Ammonia 37.830.2999.210.72.775- Nitrates 8.150.33966.1510-- Total P 7.330.032 MRP 5.020.0199.864.9917- COD 137747.1496.66878687.5125 TSS 45422.4899.923130.448735 BOD 11475.1299.638925.59425

39. Conclusion The discharge from the ICW in Glaslough not only complies with the UWWD but improves the quality of the receiving waters. Average removal efficiency for key parameters > 97 % A consistently good effluent quality Low operating and maintenance costs Positive feedback from public & Castle Leslie Keen interest (Nationally & Internationally) from Industry Professionals

40. Contact Information danjdoody@gmail.com Tel. 047 88811 Mob. 087 6470832