Evaluation of resilience of nitrate and phosphate polluted drinking water wells in Maragheh city to present the optimal model in 2019-2020

Document Type : Research Article


1 PhD student in Environmental Engineering, Department of Environmental Science and Engineering, West Tehran Branch, Islamic Azad University,

2 Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran

3 Associate Prof. Dept. of geology. Islamshahr branch. Islamic Azad University

4 Associate Professor, Department of Environment, Faculty of Natural Resources and Environment, Shahid Beheshti University, Tehran


Background: Investigating the issue of resilience of drinking water wells and presenting an optimal model in determining their quality privacy is one of the most important tools for managing and protecting valuable groundwater resources. In this paper, the drastic model is used to evaluate resilience based on the inherent vulnerability of the aquifer based on the MODFLOW model and track the movement of particles in the aquifer by MODPATH to determine the catchment area of wells.

Materials and Methods: By Combining the results of both models in GIS environment, the pollution risk map and the resilience of drinking water wells in Maragheh city were determined regionally and in the catchment area of drinking water wells. Also, determination of resilience based on damage caused to pollutants to the aquifer within the quality area of wells. A quality assessment model based on pollutants was used to determine the quality area more accurately.

Results: Most of the drinking wells in the area were less resilient with agricultural land use. Nitrate content in Maragheh drinking water wells averaged 7.3 mg/L, which is below the standard. Phosphate content was 0.35 mg/L on average, which is higher than the standard.

Discussion and conclusion: Due to determining the quality of drinking wells in different years, a larger quality area (ten years) should be considered for wells in these areas. Smaller protection can be applied to areas with high resilience and other land uses.


  • Safari, G.H., et al., Non-carcinogenic risk assessment of drinking water nitrate in the urban and rural area of the Bostanabad County in 2017. Journal of Environmental Science Studies, 2021. 6(1): p. 3390-3395.
  • Shalyari, N., et al., Health risk assessment of nitrate in groundwater resources of Iranshahr using Monte Carlo simulation and geographic information system (GIS). MethodsX, 2019. 6: p. 1812-1821.
  • Klise, K., et al., Water Network Tool for Resilience (WNTR) User Manual. 2020, Sandia National Lab.(SNL-NM), Albuquerque, NM (United States).
  • Datta, P., D. Deb, and S. Tyagi, Assessment of groundwater contamination from fertilizers in the Delhi area based on 180, N03− and K+ composition. Journal of Contaminant Hydrology, 1997. 27(3-4): p. 249-262.
  • Lerner, D. and K. Papatolios, A simple analytical approach for predicting nitrate concentrations in pumped ground water. Groundwater, 1993. 31(3): p. 370-375.
  • Thorburn, P.J., et al., Nitrate in groundwaters of intensive agricultural areas in coastal Northeastern Australia. Agriculture, ecosystems & environment, 2003. 94(1): p. 49-58.
  • Park, M.-H. and M.K. Stenstrom, Using satellite imagery for stormwater pollution management with Bayesian networks. Water research, 2006. 40(18): p. 3429-3438.
  • Gibbs, M.T., Resilience: What is it and what does it mean for marine policymakers? Marine Policy, 2009. 33(2): p. 322-331.
  • Pahl-Wostl, C., et al. New methods for adaptive water management under uncertainty–The NeWater project. in Paper in EWRA conference proceedings. 2005.
  • Nikolopoulos, D., et al., Tackling the “New Normal”: A Resilience Assessment Method Applied to Real-World Urban Water Systems, Water. 2019. 11: p. 330.
  • Stephen, R. and Kraemer, Demonstration of Capture Zone Delineation for a City Wellfield in a Valley Fill Glacial Outwash Aquifer for Wellhead Protection, U.S. Environmental Protection Agency Office of Research and Development, 2018.
  • Shin, S., et al., A systematic review of quantitative resilience measures for water infrastructure systems. Water, 2018. 10(2): p. 164.
  • Saeedi and Darabi, University landscape design with a resilience approach in water crisis (Case study: Malayer University). Ecology, 2014. 40(4): p. 1051-1066.
  • Parivar, P., et al., Development of ecological sustainability strategies to increase urban environmental resilience (Case study: Districts 1 and 3 of Tehran Municipality). Ecology, 2013. 39(1): p. 123-132.
  • Salehi, E., et al., Investigation of environmental resilience using causal network model.
  • Reliable reports, documents and maps about the boundaries and sources of groundwater, available in the archives of the Regional Water Company and the Water and Sewerage Company of A.Sh. 2016.
  • APHA, AWWA, and WEF, Standard methods for the examination of water and wastewater. Washington, 1999.
Volume 8, Issue 4
April 2022
Pages 1163-1171
  • Receive Date: 23 September 2021
  • Revise Date: 28 February 2022
  • Accept Date: 28 February 2022
  • First Publish Date: 28 February 2022