- Title
- An assessment of the monitoring methods and data limitations for inflow and infiltration in sewer networks
- Creator
- Jayasooriya, Mahinda; Dahlhaus, Peter; Barton, Andrew; Gell, Peter
- Date
- 2015
- Type
- Text; Conference proceedings
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/101772
- Identifier
- vital:10683
- Identifier
- ISBN:9781922107497
- Abstract
- Inflow and infiltration into separate sewer systems is an ongoing challenge experienced by water utilities in managing sewer networks across the world. An accurate estimation of groundwater infiltration in terms of volume and flow rate is important for making decisions on sewer rehabilitation and for the effective operation of sewer networks. The fast response of surface inflow to sewers occurs during or immediately after a prolonged or intense precipitation event and can often be exacerbated by illegal stormwater connections into the sewer network. The slow response of inflow to sewers can be attributed to deep infiltration or the discharge of groundwater into the sewer network. A common practice for most Australian water utilities in combatting the problem of infiltration and inflow is to undertake short to medium term sewer network flow monitoring, while collecting contemporaneous rainfall data, to assess the various volumes and their origin in their sewer networks. This paper presents a review of the current data collection practices, using the City of Ballarat in south eastern Australia as a case study. Discussion is provided around gaps in data collection practices to properly understand the problem and recommendations are made on what additional monitoring works should be performed so that infiltration, in particular, can be assessed on a sound scientific basis. © 2015, Engineers Australia. All rights reserved.; The Art and Science of Water - 36th Hydrology and Water Resources Symposium, HWRS 2015
- Publisher
- Engineers Australia
- Relation
- 36th Hydrology and Water Resources Symposium: The Art and Science of Water, HWRS 2015; Hobart, Tasmania; 7th-10th December 2016. p. 436-442
- Rights
- Copyright © 2015, Engineers Australia. All rights reserved.
- Rights
- This metadata is freely available under a CCO license
- Subject
- Data acquisition; Groundwater; Hydrology; Precipitation (meteorology); Sewers; Water resources; Accurate estimation; Data limitations; Ground-water infiltration; Intense precipitation; Monitoring methods; Scientific basis; Sewer rehabilitation; South-eastern Australia; Infiltration
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