Inflow and Infiltration:A Qualitative Approach

Anna BoersmaGIS for Water ResourcesNovember 20, 2012

Outline•Project Overview•Design Factors•Model Spreadsheet•Results•Conclusion

Design Factors•Pipe age•Empirical coefficient•Sewer type•Pipe area•Soil properties

Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC,USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL,Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong),and the GIS User Community±0 2 4 6 81

Miles

Overall, Emperical Quality of Pipleine

ResultsMissing_Info

0-2

2-4

4-6

6-8

Sources: Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC,USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL,Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong),and the GIS User Community±0 2 4 6 81

Miles

Overall, Emperical Quality of Pipleine

ResultsMissing_Info

0-2

2-4

4-6

6-8

Conclusions/Future Work•Process provides good starting areas•GIS a needed tool for analysis•Future: Correlate spreadsheet to field

data