How uncertain is our estimate of a wellhead protection zone?

Ground Water

Volumn 36, Issue 1, 1998, Pages 49-57

  Evers, Sarah ^a   Lerner, David N ^b  

^a ENVIRONMENT AGENCY   (United Kingdom)

^b UNIVERSITY OF SHEFFIELD   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BOUNDARY CONDITIONS; CALIBRATION; ESTIMATION; GROUNDWATER FLOW; MATHEMATICAL MODELS; SENSITIVITY ANALYSIS;

CATCHMENTS; WELLHEAD PROTECTION ZONE;

WATER WELLS;

CATCHMENT; GROUNDWATER FLOW; WELLHEAD PROTECTION;

BESTWOOD; ENGLAND; NOTTINGHAMSHIRE; UK;

EID: 0031951039     PISSN: 0017467X     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1745-6584.1998.tb01064.x     Document Type: Article

References (23)

1. Angel-Martinez, C. 1990. A study to define the catchment area for Bestwood Pumping Station, Nottinghamshire. M.Sc. project report, School of Earth Sciences, University of Birmingham, United Kingdom.
2. Bair, E.S., C.M. Safreed, and E.A. Stansy. 1991. A Monte Carlo based approach for determining traveltime related capture zones of wells using convex hulls as confidence regions. Ground Water 26, no. 6: 849-855.
3. Bhatt, K. 1993. Uncertainty in Wellhead Protection Area delineation due to uncertainty in aquifer parameter values. Journal of Hydrology 149, no. 1/4: 1-8.
4. Brooks, R.J., D.N. Lerner, and A.M. Tobias. 1994. Determining the range of predictions of a ground water model which arises from alternative calibrations. Water Resources Research 30, no. 11: 2993-3000.
5. Cooley, R.L., and A.V. Vecchia. 1987. Calculation of nonlinear confidence and prediction intervals for ground water flow models. Water Resources Bulletin 23, no. 4: 581-599.
6. Davison, R.M. 1996. Interview by author, University of Bradford, Bradford, United Kingdom.
7. Evers, S. 1993. Uncertainty associated with borehole catchment estimation. M.Sc. thesis, School of Earth Sciences, University of Birmingham, United Kingdom.
8. Evers, S., and D.N. Lerner. 1995. Zones of certainty and uncertainty in estimating borehole catchments. IAHS Publication 225, 433-491. Wallingford, U.K.: IAHS Press.
9. Fermor, M.M., B.L. Morris, and S.W. Fletcher. 1996. Modelling groundwater source catchments in the UK: Implementation and review of a qualitative method for representing uncertainty. Subsurface Fluid Flow (Groundwater and Vadose Zone) Modelling, ASTM STP 1288. Philadelphia: American Society for Testing and Materials.
10. Hill, M.C. 1989. Analysis of accuracy of approximate, simultaneous, nonlinear confidence intervals on hydraulic heads in analytical and numerical test cases. Water Resources Research 25, no. 2: 177-190.
11. Institute of Geological Sciences. 1981. Hydrogeological Map of the Northern East Midlands, scale 1:100,000. British Geological Survey, Keyworth, Nottingham, United Kingdom.
12. Lerner, D.N. 1990. Groundwater recharge in urban areas. Atmospheric Environment 24B: 29-33.
13. Lerner, D.N. 1991. Delineating borehole catchments and protection zones. Ph.D. thesis, School of Earth Sciences, University of Birmingham, United Kingdom.
14. Lerner, D.N. and P.B. Kumar. 1991. Defining the catchment of a borehole in an unconsolidated valley aquifer with limited data. Quarterly Journal of Engineering Geology 24, no. 3: 323-337.
15. Ministry of Agriculture. 1994. Designation of vulnerable zones in England and Wales under the EC Nitrate Directive (91/676). London: Ministry of Agriculture, Fisheries and Food.
16. NRA (National Rivers Authority). 1992. Policy and practice for the protection of groundwater. Bristol, United Kingdom: NRA.
17. Nelder, J.A., and R. Mead. 1965. A simplex method for function minimisation. The Computer Journal 7: 308-313.
18. Peck, J., S. Gorelick, S., G. de Marsily, S. Foster, and V. Kovalevsky. 1988. Consequences of spatial variability in aquifer properties and data limitations for groundwater modeling practice. IAHS Publication No. 175. Wallingford, U.K.: IAHS Press.
19. Press, W.H., B.P. Flannery, S.A. Teukolsky, and W.T. Vettering. 1986. Numerical recipes, the art of scientific computing. Fortran version. Cambridge, U.K.: Cambridge University Press.
20. Prickett, T.A., T.G. Naymik, and C.G. Lonnquist. 1981. A random-walk solute transport model for selected groundwater quality evaluations. Illinois State Water Bulletin 65. Champaign, Illinois: Illinois State Water Survey.
21. Rushton, K.R., and T.J. Bishop. 1993. Water resource study of the Nottinghamshire Sherwood Sandstone aquifer system of Eastern England. Report to NRA, School of Civil Engineering, University of Birmingham, United Kingdom.
22. U.S. EPA. 1987. Guidelines for delineation of wellhead protection areas. Washington, D.C.: U.S. Environmental Protection Agency, Office of Groundwater Protection.
23. Williams, B.P.J., R.A. Downing, and P.E.R. Lovelock. 1972. Aquifer properties of the Nottinghamshire Bunter Sandstone. In Proceedings of 24th IGC Montreal, 169-176.