East Cambridgeshire District Council Water Cycle Study Detailed ...

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3.4.1 Stage 2 network assessment results Figure 3-2: Ely Potential Wastewater Network Connections 37 37 The Pumping Station Locations have been digitised manually and so may vary to those locations shown here Stage 2 Water Cycle Study: Final Report Sept 2011 56 Ely Sites assessment Site Description of potential wastewater connection Lisle Lane, Ely (2 of 2) (Figure 3-2) Earliest date to connect Lisle Lane, Ely (1 of 2) (Figure 3-2) 38 A 150mm foul water sewer runs to Cresswells Lane and then to the WwTW. There are no DG5 incidents recorded on this route. A 225mm foul water sewer runs to Prick Willow Road. The 225m sewer on Prick Willow Road is gravity led and there very slight gradient to the west under Nutholt Lane. At the Paradise junction with Lynn Road it connects to a 700mm diameter Centre, Ely sewer and runs south. At the junction with the High Street it (Figure 3-2) connects into a 225mm diameter sewer. It the flows down Lisle Lane and to the Creswell Lane WwTW. There are three DG5 recorded incidents along the High Street. Land west of 93-135 Lynn Road, Ely (Figure 3-2) Phase 3, land off Prickwillow Road, Ely (Figure 3-2) North Ely (1 of 2) (Figure 3-2) North Ely (2 of 2) (Figure 3-2) A 300mm foul water sewer runs under Lynn Road. This sewer gradual increases in diameter up to 700mm at the junction with the High Street where is connects into a 225mm diameter sewer. It the flows under Lisle Lane and to the Creswell Lane WwTW. There are three DG5 recorded incidents along the High Street. A 150mm foul water sewer is connected to the site and runs along Prick Willow Road. It is diverted off Prick Willow Road through the housing estate and then runs under Lisle Lane to the Creswell Lane WwTW. An alternative pumped sewer runs under Prick Willow Road; the diameter of this is unknown. There are no DG5 incidents recorded along this route. However there is a CSO located to the South East of the site A 160mm foul water sewer is pumped under the A10 to the west of this development site. After the roundabout with the A142 the diameter is increased to 450mm and the sewer is gravity drained to the WwTW in to the south of Ely. There are no DG5 incidents recorded along this route. However, two CSOs are located just off the route south of the roundabout. There are no existing foul water sewers on the site, there are two in the vicinity. One is a pumped sewer (unknown diameter) at Thistle Corner that flows under Prickwillow Road and then Lisle Lane to the Creswell Lane WwTW. There is a CSO on this route. A 150mm diameter foul sewer runs under Mortons Close and is connected to a pumped sewer on Lynn Road. This sewer gradual increases in diameter up to 700mm at the junction with the High Street where is connects into a 225mm diameter sewer. It the flows under Lisle Lane and to the Creswell Lane WwTW. There are three DG5 recorded incidents along the High Street. Pre-dev enquiry required? 2011 2015 2015 2011 2011 2015 39 Cambridgeshire Horizons East Cambridgeshire – Detailed WCS Notes The growth proposed at the site (185) is unlikely to cause significant capacity concerns The majority of the network on the connection route is likely to have sufficient capacity; however there are sewer flooding incidents downstream and hence connection could exacerbate this problem. A new solution is therefore likely to be required The majority of the network on the connection route is likely to have sufficient capacity; however there are sewer flooding incidents downstream and hence connection could exacerbate this problem. A new solution is therefore likely to be required The growth proposed at the site (140) is unlikely to cause significant capacity concerns The majority of the network on the connection route is likely to have sufficient capacity; however significant growth is proposed and the capacity will need to be confirmed by AWS operational staff The majority of the network on the connection route is likely to have sufficient capacity; however there are sewer flooding incidents downstream, wastewater pipe sizes become restricted and hence connection could exacerbate this problem. A new solution is therefore likely to be required 38 This site has not been assessed as it is subject to relocation of Creswells lane WwTW upon which it would be located 39 The area of Ely site 2 is currently in the Ely Old WwTW catchment. It is possible that connection to Ely New WwTW would be possible in tandem with North Ely site 1, which would be subject to a pre-dev enquiry
Figure 3-3: Littleport Potential Wastewater Network Connections Stage 2 Water Cycle Study: Final Report Sept 2011 57 Littleport Sites Assessment Site Description of potential wastewater connection There are three existing foul water sewers within the immediate vicinity of the site, which are - a gravity drained pipe with a diameter of 300mm that flows under the far eastern boundary towards Parson’s Lane; - a gravity drained sewer (unknown diameter) flows under the inset eastern boundary towards Parson’s Lane; and, Land at - a gravity drained sewer flowing from the northern boundary of the site Parsons under Parson’s Lane (unknown diameter). Lane, The first two sewers join together under the junction of Parson’s Lane Littleport and Atkins Close. From Atkins Close it flows north (unknown diameter) (Figure 3-3) under the cemetery to Wisbech Road where it joins a gravitydarined sewer with a diameter of 225mm. It then flows under Elm Side (unknown diameter) from which it is pumped via one of three sewers to the WwTW (150mm, 150mm and 300mm diameter sewers). Residue at Highfield Farm, Ely Road, Littleport (Figure 3-3) Site at Highfield Farm, Ely Road, Littleport (Figure 3-3) There are no DG5 incidents recorded along this route. A 150mm gravity drained foul water sewer flows under the development site and flows north towards Parson’s Lane. From Parson’s Lane it connects to another sewer at Atkins Close. From Atkins Close it flows north (unknown diameter) under the cemetery to Wisbech Road where it joins a gravity drained sewer with a diameter of 225mm. It then flows under Elm Side (unknown diameter) from which it is pumped via one of three sewers under fields to the WwTW (150mm, 150mm and 300mm diameter sewers). There are no DG5 incidents recorded along this route. A 150mm gravity drained foul water sewer flows under the development site and flows north towards Parson’s Lane. From Parson’s Lane it connects to another sewer at Atkins Close. From Atkins Close it flows north (unknown diameter) under the cemetery to Wisbech Road where it joins a gravity darined sewer with a diameter of 225mm. It then flows under Elm Side (unknown diameter) from which it is pumped via one of three sewers under fields to the WwTW (150mm, 150mm and 300mm diameter sewers). There are no DG5 incidents recorded along this route. Earliest date to connect Cambridgeshire Horizons East Cambridgeshire – Detailed WCS Pre-dev enquiry required? 2011 2011 2011 Notes The majority of the network on the connection route is likely to have sufficient capacity; however development is upstream of a pumping station which may have limited capacity and may need to be upgraded The majority of the network on the connection route is likely to have sufficient capacity; however development is upstream of a pumping station which may have limited capacity and may need to be upgraded The majority of the network on the connection route is likely to have sufficient capacity; however development is upstream of a pumping station which may have limited capacity and may need to be upgraded
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East Cambridgeshire District Counci
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Table of Contents Cambridgeshire Ho
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Executive Summary Stage 2 Water Cyc
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Stage 2 Water Cycle Study: Final Re
Page 9 and 10: Surface Water Drainage Management S
Page 11 and 12: SWM5 - Linkages to SWMP and SFRA St
Page 13 and 14: Glossary of Acronyms and Abbreviati
Page 15 and 16: Abbreviation Description RTPI Royal
Page 17 and 18: 1.3 Stage 2 - Study Governance Stag
Page 19 and 20: Stage 2 Water Cycle Study: Final Re
Page 21 and 22: • Surface Water Management Plan f
Page 23 and 24: 2 Proposed Growth 2.1 Preferred Gro
Page 25 and 26: 2.3 Employment Stage 2 Water Cycle
Page 27 and 28: Figure 2-1: Potential development s
Page 29 and 30: Relevant WwTW Stage 2 Water Cycle S
Page 33 and 34: WwTW Soham Burwell Bottisham Hadden
Page 36 and 37: 3.2.2 Results Discussion WwTW Soham
Page 38 and 39: WwTW Consent parameter Stage 2 Wate
Page 46 and 47: Table 3-7: Potential Impact of Clim
Page 48 and 49: 3.3 Ecological Appraisal Stage 2 Wa
Page 62 and 63: Site Description of potential waste
Page 64 and 65: Site Description of potential waste
Page 66 and 67: Bottisham Site Assessment Site Desc
Page 70 and 71: Impact on Supplies Stage 2 Water Cy
Page 76 and 77: Low flow taps and showers Stage 2 W
Page 80 and 81: Figure 4-1: A typical domestic rain
Page 84 and 85: Medium Scenario The key assumptions
Page 86 and 87: Table 4-7: Details of new Build Spe
Page 88 and 89: WN Scenario New development Water u
Page 90 and 91: Operation of GWR £30 per annum 82
Page 92 and 93: Table 4-12: Estimated Cost of Neutr
Page 94 and 95: Figure 4-3: CO2 emissions from a
Page 98 and 99: 4.4.7 Preferred strategy - delivery
Page 104 and 105: 5 Surface Water Management 5.1 The
Page 108 and 109: • continuous surfaces with an inh
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5.5.1 Ecological opportunities Ely
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Site Stage 2 Water Cycle Study: Fin
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5.5.7 SuDS and groundwater protecti
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Lisle Lane, Ely 2.855 2.28 1,038 -
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Land rear of Fordham Road, Soham 2.
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6.3.3 Wastewater Network constraint
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6.4.4 Phasing Assessment Phase Dwel
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7.2 Climate Change and the Water Cy
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Directive/Legislation/Guidance Desc
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Key Additional development can be a
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Consents to achieve ‘Good Status
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MASS BALANCE CALCULATION: MONTE CAR
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LITTLEPORT STW Current Quality Cons
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HADDENHAM STW Current Quality Conse
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Sequencing Batch Reactor Stage 2 Wa
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Tertiary treatment Stage 2 Water Cy
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East Cambridgeshire WCS Flood Estim
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11 12 12 Is the discharged water on
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37 38 40 41 42 A) Have you provided
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