Groundwater; Urban groundwater; mass flux; risk assessment; pollution source
Abstract :
[en] In 2020, the European Union has established a recast of
the 1998 EU Directive on the quality of water intended for human
consumption, hereafter called Drinking Water Directive – DWD. One of the
most significant innovative point in this recast is the introduction of an
innovative “complete risk-based approach to water safety, covering the whole supply chain from the catchment area, abstraction, treatment, storage and distribution to the point of compliance” (article 7). In practice, a 3-level risk assessment and risk management is expected: (1) at the level of the catchment area (article 8), (2) at the level of the water supply systems (article 9) and (3) at the level of the domestic distribution system (article 10). In this context, the CASPER project, funded by SPGE in the Walloon Region of Belgium, aims at developing an integrated approach for the
evaluation and management of pollution risks for peri-urban groundwater
catchments. The approach, which fully complies with the requirements of the
DWD recast, consists of several key components. First, point and diffuse
pollution sources are identified in the groundwater catchment area based on
a mapping of hazardous activities combined with a specific groundwater
monitoring survey aiming at identifying specific tracers of such sources of
pollution. In a second step, risks associated to each of the identified
source of pollution is estimated based on the measurement of pollutant mass
fluxes and mass discharges downgradient these sources. Finally, a
groundwater flow and transport model is developed at the scale of the
groundwater catchment area, with the aim of evaluating the cumulative effect of the multiple sources on groundwater quality deterioration in the
catchment and at the abstraction points. The objective here is to describe
the CASPER approach and to illustrate it using ongoing investigations in a
peri-urban groundwater catchment exploiting groundwater from a chalk aquifer in Western Belgium.
Research Center/Unit :
UEE - Urban and Environmental Engineering - ULiège
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Brouyère, S., Batlle-Aguilar, J., Goderniaux, P., and Dassargues, A.: A New Tracer Technique for Monitoring Groundwater Fluxes: The Finite Volume Point Dilution Method, J. Contam. Hydrol., 95, 121-140, https://doi.org/10.1016/j.jconhyd.2007.09.001, 2008.
Brouyère, S., Jamin, P., Orban, P., Dassargues, A., and Cosme, F.: Advanced single-well applied tracer techniques for improving reliability of groundwater and contaminant mass flux monitoring. Paper presented at Conference on Remediation of Chlorinated and Recalcitrant Compounds, 9-12 April 2018, Palm Springs, CA, USA, https://orbi.uliege.be/bitstream/ 2268/222316/2/D6_1210_%23422_Brouy%C3%A8re.pdf (last access: 20 July 2022), 2018.
Guisado, A.: Réalisation d'une carte piézométrique et intérets dans la délimitation des aires d'alimentation de captages, Mémoire de stage Supervisor Doney, C., MSc thesis, Université de Bourgogne, https://www.google. com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved= 2ahUKEwjtorj1oOz7AhXOyaQKHVvPAwsQFnoECBMQAQ& url=https%3A%2F%2Fnuxeo.u-bourgogne. fr%2Fnuxeo%2Fsite%2Fesupversions% 2F38411760-6b16-4802-b167-c8ddb9adac0d&usg= AOvVaw0PN5i8zuYy5cmiQtJPYRSI (last access: 9 December 2022), 2015.
Jamin, P., Dollé, F., Chisala, B., Orban, P., Popescu, I. C., Hérivaux, C., Dassargues, A., and Brouyère, S.: A regional flux-based risk assessment approach for multiple contaminated sites on groundwater bodies, J. Contam. Hydrol., 127, 65-75, https://doi.org/10.1016/j.jconhyd.2011.07.001, 2012.
Popescu, I.-C., Brouyère, S., and Dassargues, A.: The APSU method for process-based groundwater vulnerability assessment, Hydrogeol. J., 27, 2563-2579, https://doi.org/10.1007/s10040-019-02013-z, 2019.
Vandenberghe, C., Bah, B., Orban, P., Wittorski, O., Huby, M., Piront, L., Brouyère, S., and Colinet, G.: Méthodologie de diagnostic environnemental autour de captages d'eau potabilisable sensibles qualitativement du point de vue nitrate, Rapport d'activités final, octobre 2015. Convention S.P.G.E.-SWDE, 24 pp. + rapports d'activités spécifiques en annexes, https://hdl. handle.net/2268/195226 (last access: 25 August 2022), 2015.
Vernoux, J. F., Wuilleumier, A., and Perrin, J.: Délimitation des aires d'alimentation de captages d'eau souterraine et cartographie de leur vulnérabilité vis-àvis des pollutions diffuses, Version révisée du guide méthodologique, Rapport final BRGM, BRGM/RP-63311-FR, https://www.pays-de-la-loire.developpement-durable. gouv.fr/IMG/pdf/guide_revise_eau_souterraine_delimitation_ vulnerabilite_AAC_vernoux_et_al-_2014a.pdf (last access: 25 August 2022), 2014.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.